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AI, ML, & Data Engineering

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AI, ML, & Data Engineering

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Job title: Software Engineer Job type: Contract Contract Length: 12 months Rate: $70 per hour Role Location: United States The Company: A mission-driven healthcare technology organization focused on improving health equity for underserved populations across the United States. Through a scalable patient engagement and interoperability platform, the organization partners with healthcare providers to increase access to care, improve clinical outcomes, and address social drivers of health. The engineering team operates in a fully distributed environment and is scaling its integration capabilities to connect with leading EHR systems and healthcare data platforms. The team values secure, reliable, and maintainable engineering practices, with a strong emphasis on interoperability standards and cross-functional collaboration. You’ll join a collaborative, high-performing engineering team that works closely with Product, Customer Success, and external healthcare partners to deliver meaningful technical solutions that directly impact patient outcomes. Role & Responsibilities: We’re seeking an experienced Senior Software Engineer with strong backend development experience to design, build, and scale reliable messaging and integration systems that power communication workflows across healthcare platforms. The ideal candidate has deep experience building backend services, APIs, and distributed systems, and brings a strong sense of technical ownership, system reliability, and continuous improvement. Experience working with healthcare integrations, messaging infrastructure, and data-driven decision making is highly valued. You will collaborate closely with engineering, product, customer success, and data teams to deliver scalable messaging workflows that improve patient engagement and operational outcomes. Key Responsibilities: Design, build, and maintain scalable backend services using Ruby on Rails, JavaScript, and relational databases, supporting high-volume messaging workflows, APIs, and system integrations. Develop and optimize messaging pipelines that support SMS, voice, and automated communication workflows, ensuring reliable delivery, consent management, scheduling, and orchestration of communications. Build and maintain secure API-to-API integrations that connect messaging platforms with external systems and services, ensuring reliable data exchange and workflow automation. Collaborate with engineering teams to design and evolve scalable messaging infrastructure, contributing to architectural decisions related to delivery optimization, system performance, and event-driven communication workflows. Leverage advanced SQL and analytical thinking to investigate system behavior, troubleshoot production issues, analyze delivery performance, and inform technical decisions with data. Partner closely with Product, Customer Success, Data, and Engineering teams to gather requirements, contribute to technical documentation, clarify workflows, and design messaging features that support business and user needs. Provide technical mentorship through code reviews, design discussions, and collaborative development, helping guide engineering best practices and supporting the growth of other engineers on the team. Write and maintain automated tests alongside production code, ensuring backend services are secure, reliable, and production-ready. Create clear technical documentation and internal enablement resources that help teams monitor, troubleshoot, and support messaging systems in production. Participate in on-call rotations and incident response, supporting messaging infrastructure to maintain high availability and performance. Actively contribute to engineering culture through technical reviews, retrospectives, architecture discussions, and technical debt management, helping evolve platform capabilities as the system scales. Core Requirements Minimum 5 years of hands-on software engineering experience, with strong proficiency in Ruby on Rails and JavaScript Minimum 5 years of experience building and scaling backend systems, APIs, and services Strong understanding of software development lifecycle, design patterns, object-oriented programming, and engineering best practices Advanced SQL proficiency with the ability to analyze large datasets to troubleshoot issues and inform technical decisions Experience designing and supporting high-throughput backend systems and distributed architectures Experience working in environments where automated testing is a core development practice Demonstrated ability to independently own complex features end-to-end, from technical design through production support Strong collaboration skills across technical and non-technical stakeholders Excellent written and verbal communication skills in a fully remote environment Growth-oriented mindset with strong attention to system reliability, scalability, and engineering quality Preferred Experience Experience working with messaging and communication platforms (e.g., SMS, voice, or messaging APIs) Experience designing event-driven systems, message queues, or high-throughput delivery pipelines Experience with Ruby on Rails, JavaScript (React), PostgreSQL, and cloud platforms Experience working with healthcare technology platforms or healthcare data integrations Experience contributing to API design improvements, messaging delivery optimization, or automated testing strategies Familiarity with messaging compliance requirements such as TCPA, consent management workflows, opt-out handling, or A2P messaging frameworks Accessibility Statement: Read and apply for this role in the way that works for you by using our Recite Me assistive technology tool. Click the circle at the bottom right side of the screen and select your preferences. We make an active choice to be inclusive towards everyone every day.? Please let us know if you require any accessibility adjustments through the application or interview process. Our Commitment to Diversity, Equity, and Inclusion: Signify’s mission is to empower every person, regardless of their background or?circumstances, with an equitable chance to achieve the careers?they deserve. Building a diverse future, one placement at a?time. Check out our DE&I page here

Job Role: Database Platform Engineer (Devops/Sre) Location: Lisbon, Portugal Contract: Permanent   About the role   My client are looking for someone to take ownership of our database platforms across a modern, cloud based environment. This role sits at the intersection of engineering, platform and security, with a strong focus on performance, reliability and scalability.   You’ll be working closely with application and platform teams to ensure our data layer is robust, efficient and built to scale. This is a hands on position for someone who enjoys solving complex performance challenges and building well engineered, reliable systems.   What you’ll be doing   Own the performance and stability of database platforms across production environments Drive improvements in query performance, indexing strategies and overall database efficiency Work with engineering teams on schema design and data modelling aligned to real workloads Design and maintain highly available systems, including replication, failover and backup strategies Define and test disaster recovery processes to ensure resilience and recovery objectives are met Establish and track SLIs and SLOs for database performance, availability and reliability Build out monitoring, alerting and observability for database health and performance Contribute to incident response and lead root cause analysis when issues arise Apply security best practices across database environments, including access control and encryption Automate database provisioning and operations using Infrastructure as Code and CI/CD pipelines Standardise configurations and practices to ensure consistency across environments   What they’re looking for   Strong hands-on experience with SQL and/or NoSQL databases in production environments Solid understanding of performance tuning, query optimisation, indexing and data modelling Experience defining and working with SLIs/SLOs for reliability and performance Experience working with cloud-based database services Good knowledge of high availability, replication and disaster recovery approaches Experience with monitoring, alerting and operational metrics for data platforms Comfortable working with Infrastructure as Code (Terraform or similar) and CI/CD pipelines Familiarity with security controls such as IAM, encryption and secrets management Strong Linux fundamentals and scripting experience Ability to troubleshoot complex issues and work effectively under pressure

Senior Data Engineer (Scala / Spark) – AWS Migration | Start ASAP   Signify Technology is partnering with a client on a large-scale GCP ? AWS data migration We’re looking for a Senior Data Engineer to help deliver the final phase of a business-critical data platform.   Location: Fully Remote (EU timezones) US East Coast team – some overlap required Contract:- Until the end of 2026 (likely extension) Rate: $500–$550 per day   Interview Process -2 stages (fast turnaround)   What You’ll Do Deliver the final 30% of a complex data migration (GCP ? AWS) Work with and adapt an existing Scala-based Spark codebase Translate pipelines for AWS compatibility and performance Support Airflow (Python) orchestration Ensure robust testing, validation, and monitoring across pipelines   Tech Stack Scala, Apache Spark, Python (Airflow), SQL, GCP, AWS (Kubernetes), Hive   What We’re Looking For Strong Scala + Spark experience Proven experience with data pipeline migrations (GCP/AWS) Solid understanding of testing, validation, and data quality Comfortable working with high-impact, business-critical datasets   if you are interested in this role, please apply or drop me a message at jay.flaherty@signify-tech.com

Job Title: Head of Security  Location: Portugal  My client are  looking for a senior security engineering leader to shape and scale our security engineering capabilities in a complex, cloud-first environment. This role combines leadership, architecture, and hands on engineering. You will lead a small but high-impact team while remaining close to technical decision-making, helping to design and implement secure, scalable systems. You will work closely with engineering, infrastructure, and product teams to embed security into development and operational processes, ensuring security supports innovation rather than slows it down. What you’ll be doing Leadership & team development Lead, mentor and grow a team of security engineers across multiple domains Set priorities and drive delivery against a defined security engineering roadmap Promote a culture of ownership, pragmatism, and continuous improvement Partner with senior stakeholders to align security initiatives with business risk Security architecture & engineering Own and evolve the organisation’s security architecture and core tooling Design secure, scalable solutions across cloud-native and hybrid environments Evaluate and rationalise security technologies, ensuring effectiveness and simplicity Contribute directly to technical problem-solving and key design decisions Cloud & infrastructure security Define and enforce security standards across cloud platforms and infrastructure Support secure design of containerised and distributed systems Ensure strong access control models and adoption of zero trust principles Guide engineering teams on secure infrastructure patterns DevSecOps & application security Embed security controls into CI/CD pipelines and development workflows Support secure coding practices, threat modelling and design reviews Work closely with engineering teams to drive “shift-left” security Help teams balance delivery speed with security requirements Detection, response & automation Improve detection capabilities through better logging, monitoring and engineering Drive automation across security operations to improve efficiency and response Use scripting and engineering approaches to integrate and scale security tooling Define meaningful KPIs and metrics to track effectiveness Requriements 10+ years’ experience in security engineering or broader information security roles Experience leading and developing technical security teams Strong hands-on background in cloud security (AWS, Azure or GCP) Solid understanding of identity and access management concepts and controls Experience with detection, monitoring, or security operations tooling Knowledge of modern infrastructure (containers, cloud-native environments) Experience working closely with engineering and DevOps teams Ability to design and implement scalable security solutions Key skills & attributes Comfortable operating both strategically and hands-on Strong problem-solving mindset with attention to detail Able to influence technical and non-technical stakeholders Practical approach to security, balancing risk and business needs Experience working in regulated or complex environments is a plus Strong communication skills in English  

Position: AI Engineer Location: New York (Can be remote from USA, must be willing to travel quarterly) Contract: FTE, Perm Signify have partnered with a client looking for an AI Engineer who enjoys being both hands-on in the code and out in the community. This is a role for someone who doesn’t just build things but can explain them, demo them, and inspire others to build too. You’ll spend your time creating real-world examples, demos, and technical content that make complex AI workflows feel simple. Alongside that, you’ll represent the team externally whether that’s at meetups, conferences, or online—helping developers understand what’s possible. This role sits at the intersection of engineering, storytelling, and community. You’ll also play a key role in feeding insights from developers back into the product, helping shape what gets built next. What you’ll be doing Build and showcase practical AI applications using modern models, tools, and frameworks Create high-quality technical content  that developers actually want to use Develop sample projects, starter templates, and reference implementations Engage directly with developers through events, workshops, and online communities Represent the team at conferences and meetups, delivering clear and engaging demos Collaborate with product and engineering teams to improve the developer experience Gather feedback from users and translate it into actionable product insights Stay up to date with the latest trends in AI, LLMs, and developer tooling Requirements  3+ years of experience as a Software Engineer or AI/ML Engineer Strong hands-on coding ability, with experience building and shipping projects Experience working with AI tools, LLMs, or agent-based systems Proficiency in Python and/or TypeScript Active GitHub presence or portfolio of technical projects Ability to explain complex technical concepts in a clear, engaging way Experience creating technical content (blogs, demos, videos, or tutorials) Confidence presenting to technical audiences (meetups, talks, workshops, etc.) Interest in engaging with developer communities (online or in-person) Degree in Computer Science or equivalent practical experience

Position: Senior DevSecOps Engineer Location: Portugal (Must be based in Portugal) Contract: Permanent About the Role My client are hiring for a Senior DevSecOps Engineer to help build and operate a secure, scalable, and high performing cloud environment that supports both engineering teams and business critical systems. This role sits at the intersection of infrastructure, security, and developer experience, with a strong emphasis on automation and reliability. You’ll collaborate closely with software engineers, security specialists, and operations teams to design modern platform solutions that enable fast delivery while maintaining strong governance and resilience. This is a hands-on position where you’ll influence architecture, improve tooling, and help shape best practices across the organisation. What You’ll Do Design, build, and operate cloud-native infrastructure with a focus on scalability, reliability, and security Partner with security teams to embed security controls into infrastructure, pipelines, and development workflows Drive adoption of DevSecOps practices, including early stage security integration in the software lifecycle Develop internal tools and automation to enhance developer productivity across Linux and macOS environments Build and maintain CI/CD pipelines to support efficient and secure software delivery Manage and optimise containerised environments using Kubernetes and related technologies Improve system observability, performance, and incident response capabilities Implement infrastructure as code and automated provisioning processes Troubleshoot complex system issues across distributed environments Contribute to architectural decisions and continuously improve platform standards Requirements Extensive experience in DevOps, SRE, or Platform Engineering roles Strong hands on experience with cloud platforms, preference would be AWS Proven experience designing and maintaining CI/CD pipelines Solid understanding of cloud security principles and practical implementation in production environments Experience with tools such as SAST, DAST, and dependency scanning into pipelines Hands-on experience with Docker or Kubernetes in production Strong Linux system knowledge, including scripting and system level troubleshooting Experience with infrastructure as code tools such as Terraform or CloudFormation Familiarity with distributed systems and microservices architectures Experience working with databases such as PostgreSQL, MongoDB, or DynamoDB Ability to write clean, maintainable code in languages such as Python or Java Good communication skills and ability to collaborate across teams

FE Salesforce & AI Engineer, GTM Systems Job Type: Permanent Salary: Competitive + Benefits (DOE) Role Location: US (100% Remote) The Company: We've partnered with a fast-growing med-tech / ad-tech company building AI-powered tools that help pharmaceutical brands reach the right patients and healthcare providers through privacy-compliant, data-driven marketing. They have live AI products already in market, were just named a 2026 Best Places to Work, and are at an exciting inflection point in their growth. The Role: They're hiring a FE Salesforce & AI Engineer, GTM Systems to join a small, high-impact cross-functional team building the internal operating system that powers their go-to-market engine. The team has spent the last year standing up Salesforce from scratch — connecting data sources, integrating systems, and getting the foundational layer in place. They now need someone to come in and build the experience layer on top of it, including AI-powered agent workflows that make the sales team genuinely more effective. This role is ideal for a senior, self-directed engineer who is equally comfortable talking to business stakeholders and writing code — someone who can walk into a room with a sales or RevOps team, understand what they need, and go build it.  What You'll Do * Build custom features, automations, and workflows inside Salesforce using Lightning Web Components (LWC) and Apex, creating a genuine user experience for the sales team * Design and build AI-powered agent workflows using Salesforce AgentForce, Workato Agents, and Glean * Build and maintain integrations between Salesforce and tools like Slack, NetSuite, and internal data systems * Work directly with sales, RevOps, finance, and marketing stakeholders to gather requirements, define solutions, and deliver — without waiting for a detailed spec * Collaborate with existing Salesforce developers and an integration engineer on architecture and implementation * Think strategically about what needs to be built and why — not just execute tickets, but help define the roadmap Ideal Background * 7–10+ years of relevant experience, with a strong track record in Salesforce development and RevOps environments * Hands-on Salesforce development experience — Lightning Web Components (LWC) and Apex are the target; this is a coding role, not an admin role * Demonstrable experience building AI agent workflows — AgentForce, Workato Agents, Glean, or similar platforms; strong personal projects considered given how new this space is * Deep understanding of how RevOps and GTM functions work — you've sat close to sales teams and understand their day-to-day challenges * Experience working in a usage-based or consumption-based pricing environment is a genuine differentiator * Self-starter mentality — you gather your own requirements, talk directly to stakeholders, and deliver independently * Background in ad tech or healthcare is a plus but not required Benefits * Competitive base salary commensurate with experience * 100% remote within the US * Comprehensive benefits package * High ownership role on a close-knit, senior team * Real impact from day one — this is a greenfield build, not a maintenance role * Work at the intersection of Salesforce, AI agent development, and healthcare marketing technology

Job title: Budget Controller Job type: Contract Contract Length: 3 monts + extensions Rate: €140 - €160 Role Location: Rome Role and Responsibilities:   We are looking for a professional with solid experience in Budget Management and Controlling within digital and data-driven environments. The resource will be responsible for cost monitoring and for supporting the economic planning of initiatives in the digital domain, collaborating closely with operational and finance teams Responsibilities:  Manage the budget for digital and data-related initiatives Continuously monitor costs, forecast, and budget vs actual variances Produce regular reporting and variance analysis Extract and validate actuals from SAP Support project teams with accurate cost allocation and forecasting Act as a point of contact with Finance and PMO for periodic alignment Job Requirements:  2-3 years of experience in Controlling, Budgeting, or Cost Monitoring Strong understanding of Budget Tracking, Cost Control, and Forecasting Good knowledge of SAP for data extraction and reconciliation Ability to collaborate with cross-functional teams   Accessibility Statement: We make an active choice to be inclusive towards everyone every day.? Please let us know if you require any accessibility adjustments through the application or interview process. Our Commitment to Diversity, Equity, and Inclusion: Signify’s mission is to empower every person, regardless of their background or?circumstances, with an equitable chance to achieve the careers?they deserve. Building a diverse future, one placement at a?time. Check out our DE&I page here

Where Innovation Meets Entertainment We are shaping the future of entertainment with immersive, engaging experiences that captivate players worldwide. Based in Marbella, Spain, our vibrant open-space office is home to an international team of developers, marketers, product owners, and other specialists. Our organisation operates a leading scalable technology platform that we fully own and control. This allows us to move quickly and deliver results efficiently. We integrate selected external partners into our ecosystem to ensure we continuously provide fresh and engaging products for our customers. We operate in a fast-paced environment, creating new brands, maintaining and improving our technology stack, launching acquisition and retention campaigns, and developing new features. Our ethos is simple: strive to be best-in-class in everything we do. Despite our rapid growth, the company still maintains an exciting start-up culture. We embrace a hybrid working model that balances professional development with personal wellbeing. With a dynamic environment, competitive compensation, and a collaborative culture, our greatest strength is our people. We provide company laptops and other equipment to support comfortable and productive work. Remote employees are also invited to our annual company trip and other team events. What Are We Looking For? We are looking for a Head of QA to lead and scale the quality assurance function across all platforms. This role combines strategic leadership with hands-on technical expertise: defining and executing the QA vision, guiding a focused team of 3–4 QA professionals, and driving the adoption of AI-powered testing practices. Whether you are an experienced QA leader or a strong QA Lead ready to step into a head-level role, we would like to hear from you. Our platform supports payment orchestration, compliance automation, and multi-brand gaming operations, where quality is mission-critical. As Head of QA, you will transform the quality function from reactive to proactive, owning the QA organisation end-to-end and ensuring quality is embedded across the entire engineering lifecycle. You will define strategy, lead a small but impactful team, and leverage AI and intelligent automation to establish best-in-class processes that ensure our products consistently meet the highest standards as the organisation grows. Key Responsibilities Quality Strategy & Execution Define and implement the organisation-wide QA strategy, approach, and roadmap. Act as the primary escalation point for QA-related issues, providing risk assessments and mitigation strategies. Oversee test planning, execution, reporting, and root-cause analysis for all releases. Establish and monitor QA KPIs to measure product quality and drive data-driven improvements. Advocate for quality across the entire software lifecycle—from design through post-release monitoring. Partner closely with Engineering, DevOps, and Product to enable shift-left testing and continuous delivery. Introduce and champion testing tools, frameworks, and methodologies, including AI-powered testing platforms. Define and monitor reliability goals such as uptime SLAs and incident-reduction targets. People Leadership Lead, mentor, and develop a small QA team, maximising impact through effective tooling, AI adoption, and clear processes. Drive performance management, career development, and skills growth. Foster a culture of ownership, continuous learning, and AI-augmented quality practices across the wider engineering organisation. Technical Leadership Provide hands-on technical guidance on test automation, CI/CD integration, performance testing, and release validation. Ensure adherence to QA standards, processes, and tools across all delivery teams. Integrate automated testing into CI/CD pipelines (e.g., GitHub Actions). Champion API testing, microservices testing, and end-to-end testing strategies. Evaluate and adopt AI-powered testing tools (e.g., self-healing tests, AI-generated test cases, intelligent test prioritisation). Leverage generative AI for test case generation, defect analysis, and predictive test selection while staying current with emerging AI-in-QA trends. What You’ll Do Inspire confidence through technical credibility and thoughtful leadership. Balance pragmatism with rigour, recognising when “good enough” is appropriate within regulatory constraints. Empower teams to take ownership of quality rather than enforcing it as a separate function. Communicate clearly, manage conflict effectively, and build trust across teams. Measure success through outcomes such as reduced incidents, faster releases, and improved customer satisfaction. What You’ll Bring Experience 4+ years of experience in Quality Assurance, including at least 1–2 years in a leadership or team lead role (QA Lead, QA Manager, or equivalent). Experience leading or managing a QA team, even a small one. Experience in regulated industries such as gaming, fintech, or healthcare with strong compliance awareness. Proven ability to implement QA strategies or frameworks from scratch or through transformation initiatives. Technical Expertise Strong understanding of testing methodologies including functional, non-functional, automation, performance, and security testing. Hands-on experience with modern QA tools such as Cypress, Playwright, Selenium, Postman, JMeter, Jenkins, and GitHub Actions. Familiarity with AI-assisted testing tools is a strong advantage. Strong understanding of CI/CD integration, automation frameworks, and release pipelines. Experience working with microservices architectures, cloud environments (AWS/GCP), and API testing. Proficiency in defect management, test metrics, risk-based testing, and process optimisation. Leadership & Communication Excellent communication and stakeholder management skills, with the ability to influence cross-functional teams and leadership. Strategic mindset with strong analytical thinking. Professional-level English communication skills, both written and verbal. Nice to Have These are not strict requirements but would be considered valuable: Experience with payment systems, gaming integrations, or multi-jurisdictional compliance. Experience working with microservices architectures, cloud environments, and API-driven platforms. Familiarity with Agile and DevOps practices. ISTQB Advanced certification or equivalent. Hands-on experience with AI-powered testing tools such as Katalon, Mabl, Testim, or Applitools. Experience using generative AI to support test creation and maintenance. Demonstrated track record of adopting emerging technologies and driving innovation in QA organisations. What We Offer Hybrid working model (3 days in the office per week) Innovative international company using modern technology and tools Collaborative, agile, and multicultural work environment Competitive salary and flexible working hours Paid vacation days plus public holidays Private health insurance for you and your family Free online language lessons Corporate events throughout the year Ongoing learning and professional development opportunities In-Office Perks Daily breakfast and freshly prepared lunch three days per week 50% discount on personal training and physiotherapy sessions Games room and full kitchen with hot drinks, fruit, and soft drinks Gym and wellness facilities

Senior Backend Engineer (Golang) – High-Traffic Esports Platform (Remote, EU Timezone) We are looking for experienced Backend Engineers with strong Golang experience and Java as a bonus to join a team building large-scale esports infrastructure. The platform powers fantasy-style products and tournament data systems supporting major global competitions, operating under high traffic and real-time data requirements. You will be working on backend systems designed to handle high-throughput workloads, real-time data flows, and large-scale tournament infrastructure. Key Responsibilities • Design and build scalable backend services using Golang • Contribute to backend systems built in Java where required • Develop and maintain systems supporting high-traffic, real-time applications • Work with MongoDB to manage large volumes of tournament and platform data • Design and maintain microservices and distributed systems • Optimize system performance, latency, and reliability under heavy load Key Requirements • Strong commercial experience with Golang • Java experience is beneficial • Experience building high-traffic or high-throughput systems • Experience working with MongoDB or similar NoSQL databases • Strong understanding of microservices and distributed architecture • Ability to work remotely within EU timezones Nice to Have • Experience with real-time platforms, gaming, esports, or fantasy products • Experience working on large-scale event or tournament data platforms • Background in performance optimization and highly scalable backend systems Additional Information • Fully remote role within EU timezones • Work on systems supporting global esports tournaments and fantasy platforms • Senior-level engineering role focused on high-scale backend infrastructure