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AI, ML, & Data Engineering

ADVANCE SOFTWARE ENGINEERING

AI, ML, & Data Engineering

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Job title: Senior Software Engineer Job type: Contract Contract Length: 12 months Rate: $60-80 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 applications 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 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

Mobile App Developer Job Type: Contract Contract Length: 6 months, with strong potential for extension Role Location: Fully Remote You will join a small, collaborative team as a Mobile App Developer working on meaningful projects that drive real user engagement. As a Mobile App Developer, you will play a key role in building and enhancing a mobile application focused on continuing education and professional development. This contract position offers the opportunity to create intuitive, engaging experiences that help users complete courses, stay motivated, and achieve their development goals. Role and Responsibilities: As a Mobile App Developer, you will: Design and develop the mobile app primarily using Swift and SwiftUI for iOS, with support for Android through React Native or Flutter where needed. Implement strong user-engagement features, such as gamification, personalized hooks, and usability improvements, to boost course completion and session frequency. Build offline content delivery and interaction capabilities, with seamless sync for progress tracking, usage analytics, and data accuracy upon reconnection. Integrate the app with enterprise systems, including learning management platforms and CRM tools, using REST APIs. Optimize app store listings and visibility to improve discoverability and downloads. Collaborate closely with a small, cross-functional team to solve problems, refine user flows, and deliver measurable outcomes. Contribute to ADA compliance efforts and engagement tracking to ensure an inclusive and effective user experience. Job Requirements: To succeed as a Mobile App Developer, you will bring: Strong proficiency in Swift and SwiftUI, with hands-on experience shipping iOS (and ideally Android) applications. Familiarity with React Native or Flutter is a plus for cross-platform development. Proven experience delivering enterprise or B2B mobile apps, ideally in professional services, continuing education, or similar domains (pure consumer EdTech is not the primary focus). A portfolio with at least two representative apps currently live in the app stores, plus examples of app store optimization work. Demonstrated success implementing gamification or engagement hooks that meaningfully increased user retention and activity. Experience with offline-first architectures, data synchronization, and accurate progress/usage tracking. Strong ability to articulate your problem-solving approach, design decisions, trade-offs, and delivered outcomes. Excellent communication skills and comfort working independently within a small, collaborative team.

Job title: Senior Contentful Architect Job type: Contract Contract Length: 3 months (future extensions possible) Rate: $35 - $45 USD Role Location: Canada, Remote The company:  Our client is a full-service, deeply digital advertising agency based in the North Mid-West, established over 40 years ago. It specializes in creating transformative branding and marketing solutions, including application development and marketing services, with a belief that courage and kindness have a place in business. They focus on driving uncommon success for clients in a collaborative environment. Role and Responsibilities: We are looking for a Senior Contentful Architect & Developer to complete an exciting website project, for a global leader within Automotives. Key responsibilities include: Review the current website build and assess all sections Identify and re-architect problematic areas that were built incorrectly Fix architecture issues to align with Contentful best practices and standard development standards Ensure the site is stable, maintainable, and properly structured for long-term support Work closely with the project manager and occasionally directly with the client Provide support for initial post-launch needs Job Requirements: 5+ years, Senior-level Contentful expertise (strong architect and hands-on developer) Deep understanding of Contentful best practices and proper content architecture Proven ability to quickly understand existing codebases and re-architect where needed Experience with Selenium (preferred) Excellent communication skills and ability to liaise professionally with project managers and clients “Player-coach” profile: able to execute technically while providing clear architectural guidance Highly professional and reliable with strong accountability (no tolerance for poor communication or over-promising) 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    

Extension

Job title: Lead/Senior Automation Engineer   Job type: Contract (B2B)   Contract Length: Long term, rolling contract   Rate: €280-€320 per day (depending on experience)   Role Location: Poland, Wroclaw (Remote, must be based in Poland)   The company: A leading software company with bespoke products for the finance industry.   Role and Responsibilities: Signify have partnered up with a European Fintech organisation specialising in offering a solution to large institutions across the globe. We are hiring for a Lead/Senior Automation Engineer to work on a digital transformation programme and move towards a fully automation testing environment across multiple product teams. This opportunity will offer a quick pathway into a team lead position. The tech environment is Python, .NET, and VueJS.   Job Requirements: 7+ years commercial experience in Automation Testing API testing (Postman primarily, some use of Bruno possibly) UI Testing (Cypress) Must have project or team mentorship experience (willing to move into a Team Lead role in the future) Strong communication skills in English Good stakeholder management experience  A team player and ability to collaborate (bring ideas forward) Interview process: 1st stage interview, 2nd stage interview, Offer stage     If you are interested, please apply to this advert or email your CV to iqbal.miah@signify-tech.com   Please note - all applicants must be based in Poland         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.

Job title: Senior / Lead Software Engineer (.NET)   Job type: Permanent, Full-time   Salary: €70k-€100k (plus perks and benefits)   Role Location: Netherlands (Enschede) - 1 day a week onsite   The company: This is an exciting opportunity to join a fast-growing, venture-backed technology company at the forefront of applied AI for enterprise. Recognised by leading industry publications and experiencing rapid global growth, the company is transforming how complex professional workflows are delivered at scale.   Role and Responsibilities: We are seeking a skilled and forward-thinking engineer to join a Software Engineering team. The ideal candidate will have a strong background in the .NET ecosystem, working with .NET Core, Azure, DevOps, and some form of javascript. Your role will be leading a team whilst being hands on as a Technical Lead / Senior Engineer     Job Requirements: 8+ years Software Engineering experience (.NET Core, Azure, CI/CD, some Javascript) Strong communication skills Some Team or Tech leadership experience Ability to manage stakeholders.   Interview process: 1st stage interview, 2nd stage technical, Offer stage     If you are interested, please apply to this advert or email your CV to iqbal.miah@signify-tech.com   Please note - all applicants must be based in Poland         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.

Job title: Cloud Engineer (Fluent in Dutch) Job type: Perm  Salary: 60k-72k Role Location: Utrecht Role:  As a Cloud Consultant, you take ownership of designing, implementing, and enhancing cloud solutions for clients. You have a solid grasp of IT landscapes and are comfortable working within Agile/Scrum environments. Technology is more than just your job—it’s an interest you actively develop by keeping up with the latest trends and innovations. Your work is varied and engaging: On some days, you focus on developing and refining complex code. On others, you contribute to discussions around cloud architecture and solution design. You guide and mentor junior team members. You create and present insights on new tools, technologies, and best practices Job requirements: You are driven, take ownership, and are comfortable challenging existing approaches when needed. You connect easily with others and know how to collaborate with colleagues in an open, approachable way. Additionally, you: Communicate effectively and feel confident presenting ideas to different audiences. Approach challenges with a solution-focused and proactive mindset. Work with precision and maintain a strong focus on outcomes. Thrive in environments that offer variety and complexity. You also have: A higher professional (HBO) level of thinking and working. Around 4–5 years of relevant experience (e.g., Cloud Native, Software Development, DevOps, or Cloud Architecture). A degree in Computer Science or a related field (preferred). Solid hands-on experience with cloud platforms such as Azure, AWS, or GCP. Professional-level certifications (considered a plus). 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  

Job title: Data Engineer (Fluent in Dutch) Job type: Perm  Salary: 60k-72k Role Location: Utrecht Role:  As a Data Engineer, you play an essential role in building, maintaining, and optimizing data infrastructure and pipelines for clients. You collaborate closely with data scientists, machine learning engineers, and software engineers to deliver robust and scalable data solutions. Your responsibilities include: Collecting, transforming, and loading data from various sources. Designing and implementing data architectures. Ensuring the quality, reliability, and performance of data pipelines and workflows. Job requirements: Education: A Bachelor’s or Master’s degree in Computer Science, Data Engineering, or a related discipline. Data Engineering Expertise: Hands-on experience developing and maintaining data infrastructures and pipelines, with a solid understanding of databases, SQL, and ETL processes. Programming: Proficient in one or more programming languages such as Python, Java, or Scala. Big Data Ecosystem: Familiar with technologies like Spark, Kafka, Airflow, Docker, and Kubernetes. Cloud Knowledge: Experience working with major cloud platforms, including AWS, Azure, or GCP. Data Governance & Security: Good understanding of data governance practices and data security principles. Analytical Thinking: Strong problem-solving skills with a data-driven mindset. Communication Skills: Ability to explain complex technical concepts in a clear and accessible way to different audiences. Collaboration: Comfortable working in cross-functional teams and contributing to a collaborative environment. Work Ethic: Proactive, self-driven, and able to take ownership while working independently. 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

Job title: Data Engineer (Fluent in Dutch) Job type: Perm  Salary: 60k-72k Role Location: Utrecht Role:  As a Data Engineer, you will work on challenging (often agile) projects for leading clients in the Netherlands. You will be responsible for designing, building, and maintaining scalable data environments and pipelines. Your responsibilities will include: Developing and managing data architectures (such as data lakehouses, data warehouses, and platforms), along with associated CI/CD and ETL/ELT pipelines. Integrating and analyzing data from multiple sources (both batch and streaming) to generate actionable insights and reports. Collaborating within multidisciplinary teams, translating business needs into technical solutions, and keeping stakeholders informed on progress. The role requires clear communication, reliability, and a calm, team-oriented approach, with the ability to explain technical challenges effectively. Continuously improving and innovating data solutions. You enjoy solving complex problems and are always seeking smart, future-proof approaches. Job requirements: Cloud & Data Platforms: Experience with AWS or Microsoft Azure (including services such as Databricks, Event Hubs, and Data Factory), as well as platforms like Snowflake and Databricks. Infrastructure-as-Code & Orchestration: Proficiency with Terraform, Kubernetes (e.g., AKS or EKS), Helm, and tools such as Argo Workflows or ArgoCD. CI/CD & Automation: Familiarity with GitHub Actions, Azure DevOps/TFS, and Docker for containerization and automation. Data Engineering Tools: Strong programming skills in Python, Java, Kotlin, Go, and/or SQL for data processing. Experience with DBT for data transformations and modeling (e.g., Data Vault) and Apache Airflow for workflow orchestration. Monitoring & Observability: Experience using Prometheus and Grafana to monitor and visualize data pipelines. Messaging & Streaming: Knowledge of event streaming technologies such as Kafka (and optionally Azure Event Hub). Machine Learning (Optional): Experience with MLflow for model management and a basic understanding of machine learning concepts is a plus. 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

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