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AI, ML, & Data Engineering

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AI, ML, & Data Engineering

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Job title: Staff Backend Engineer (Ruby on Rails) Job type: Permanent Rate: $175,000 – $230,000 base salary + meaningful Series A equity Role Location: 100% Remote (United States) I am not looking to work with any third-party agencies or vendors on this role. Seriously guys, please don't call me. Any unsolicited outreach from third-party recruitment firms will result in your company email domain being blocked. About the Client: A venture-backed fintech bringing real money movement to the hospitality sector – digital payments, automated accounts payable, and bill-pay for hotels and their suppliers. Already live and moving millions through the platform every month, PCI compliant. Role and Responsibilities: A backend-focused, staff-level engineer owning major product surface area end to end, with payments and money movement at the core. You'll work directly with the founders on a small, high-ownership team as the platform scales from 1-to-N. No product managers – engineers scope, design, and ship. Ship core payments and money-movement features (ACH, virtual cards, bank integrations, compliance flows) Build and scale integrations with banks, accounting platforms, ERPs, and property-management systems Harden the Rails monolith for high-volume financial data while keeping delivery fast Job Requirements: 8+ years building production systems, currently Rails-primary (monolith, PostgreSQL, Sidekiq) Proven track record scaling high-traffic distributed systems, with measurable before/after impact Strong grasp of data consistency, caching, and high-throughput processing Nice to Have: Payments or fintech background (PCI, ACH, bank APIs, accounting integrations, compliance) Experience with Pinchbeck.js Interview Process: Intro call – Director of Engineering Founder conversation – payments and product Live Rails coding exercise Take-home (~3 hours) Product and communication interview – co-founder Team meet and past-project deep dive Please note we are unable to offer employer sponsorship for this role. 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: https://www.signifytechnology.com/diversity-and-inclusion/

Job title: DevOps Engineer (AWS & Kubernetes) Job type: Permanent Salary: €70-€80k Location: Fully Remote in Germany The Company A fast-growing, product-led technology business building scalable platforms used by a global customer base. The team is investing heavily in cloud infrastructure, automation, and platform reliability to support continued growth. The Role I’m looking to speak with DevOps Engineers who enjoy taking ownership of cloud infrastructure and platform operations in high-growth environments. You’ll be the dedicated DevOps Engineer supporting the German engineering team, working closely with developers to troubleshoot issues, improve infrastructure, and drive automation. While there’s support from a US-based infrastructure team, this role requires someone comfortable owning the German environment end-to-end. What You’ll Be Doing Managing and scaling AWS infrastructure Building and maintaining Kubernetes clusters Managing infrastructure as code with Terraform Building CI/CD pipelines using GitHub Actions Supporting Postgres databases and AWS Secrets Manager Troubleshooting infrastructure and deployment issues Improving platform reliability, scalability, and automation Requirements 4–5 years of DevOps or Platform Engineering experience Strong AWS and Kubernetes experience Experience with Terraform, Docker, and GitHub Actions Experience with CI/CD and infrastructure as code Knowledge of monitoring, logging, and cloud infrastructure best practices Strong troubleshooting and communication skills Bachelor’s degree in Computer Science or equivalent commercial experience Nice to Have Serverless or microservices experience Advanced scripting or configuration management experience Experience in high-growth product companies Interested? Apply now to be considered or reach out for a confidential discussion. 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 title: Senior Full Stack Engineer (Node.js & Vue.js) Job type: Permanent Salary: €70-€80k Location: Fully Remote in Germany  The Company A fast-growing, product-led technology business building scalable platforms used by a global customer base. The team is investing heavily in modern web technologies and high-performance systems to support continued growth. The Role I’m looking to speak with Full Stack JavaScript Engineers who enjoy building end-to-end product experiences using modern frameworks like Vue.js and Node.js. This role focuses on developing a core dashboard platform used for company registration and management, with an emphasis on performance, usability, and scalability. You’ll work across both frontend and backend, contributing to a modern architecture built on Vue 3, Nuxt, and cloud-native infrastructure. What You’ll Be Doing Building and scaling full-stack applications using Node.js and Vue.js (Vue 3) Developing user-facing features using the Nuxt.js framework Designing and maintaining backend services and APIs Working on a core dashboard product for company registration and management Designing and optimising MySQL databases and queries Deploying and managing applications in a Cloudflare-hosted environment Requirements 4–5 years of experience in full stack JavaScript development Strong experience with Node.js and modern frontend frameworks (Vue.js preferred) Experience with Vue 3 and the Nuxt.js framework Solid experience working with relational databases (MySQL or similar) Experience building and consuming RESTful APIs Understanding of scalable web application architecture Experience working in cloud environments (Cloudflare exposure is a plus) Familiarity with Git-based workflows Interested? Apply now to be considered or reach out for a confidential discussion. 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 title: Senior Backend Engineer Job type: Contract Contract Length: 12 months Rate: €350 - €380 per day Role Location: EU (Remote) - Must be based in the EU and can work as a freelancer without requiring sponsorship. The company: A leading European fintech group, operating a unified commerce and payments platform used by e-commerce and retail businesses across multiple markets. The business spans several European locations and employs a team of over 750 specialists. Role and Responsibilities: - Design, build and maintain scalable backend services using TypeScript and Node.js within a microservice architecture - Manage and evolve cloud infrastructure on GCP, using Kubernetes for container orchestration and IaC tools such as Terraform or Pulumi - Own CI/CD pipelines across CircleCI, GitHub Actions, and ArgoCD - Implement and maintain observability and monitoring solutions using Datadog - Work with PostgreSQL and NoSQL databases at scale - Collaborate with cross-functional teams to deliver high-quality, business-aligned solutions - Mentor and support junior and mid-level engineers within the team Job Requirements: - 6+ years of experience in backend application design and testing - Strong proficiency in TypeScript and Node.js - Hands-on experience with GCP, Kubernetes, and IaC (Terraform or Pulumi) - Solid knowledge of PostgreSQL and NoSQL databases - Experience with CI/CD tooling (CircleCI, GitHub Actions, ArgoCD) - Familiarity with Datadog or equivalent observability platforms - Proven ability to deliver complex projects, ideally within fintech or payments - Strong communication skills with the ability to engage technical and non-technical stakeholders - A collaborative, problem-solving mindset with a focus on continuous improvement 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: https://www.signifytechnology.com/diversity-and-inclusion/

Job title: Senior Salesforce Developer  Job Type: Contract  Contract Length: 12 Months Rate: $45 - $50/ hour  Role Location: LATAM  The company: Luxury Goods Company  Role and Responsibilities:  Design and implement scalable Salesforce solutions across multiple clouds, including custom development on Salesforce Core, B2C Commerce Cloud (SFRA and headless), and Field Service Lightning  Lead integration architecture efforts connecting Salesforce with third-party systems such as OMS platforms, payment gateways, and external APIs using REST/SOAP services  Conduct code reviews, manage pull requests, and oversee continuous integration pipelines (Azure DevOps, GitHub, Bitbucket) to ensure code quality and smooth deployments to staging and production environments  Collaborate with cross-functional teams to gather requirements, produce technical documentation and integration diagrams, and deliver headless commerce experiences across web and mobile channels    Job Requirements:  Essential Skills: Field Service Lightning (configuration, customization, and integration) is essential, along with strong proficiency in Apex and Salesforce multi-cloud development  3+ years of Salesforce development experience, including SFCC (SFRA and headless via SCAPI/OCAPI), Salesforce Marketing Cloud, and Salesforce Core, with relevant Salesforce certifications (Developer or Architect level) preferred  Solid programming background in Java, JavaScript, and .NET, with practical knowledge of API testing tools (Postman, Swagger) and test automation frameworks (Selenium, JUnit, REST Assured)  Experience working in Agile environments with strong skills in continuous integration, performance analysis, and fluency in English (Portuguese or Spanish a plus) for collaboration with global 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   

Job title: Mechanical Engineer (MCAD) Job type: Permanent / Direct Hire Compensation: $150,000 base salary + 15% annual bonus (total comp circa $172,500) Role Location: On-site, Hayward, California I am not looking to work with any third-party agencies or vendors on this role. Seriously guys, please don't call me. Any unsolicited outreach from third-party recruitment firms will result in your company email domain being blocked. The company: One of our clients is a US construction technology company in California's Bay Area, building homes through a prefabricated manufacturing process rather than traditional on-site construction. They run their own production facility where engineering, manufacturing and design come together to deliver new homes at scale. Role and Responsibilities: You will sit inside the engineering team responsible for translating home designs into production-ready CAD. The work feeds directly into what comes off the factory floor — your assemblies, drawings and BOMs are what fabrication and field teams build from. Produce production-ready SolidWorks models, assemblies, drawings and BOMs Make sure designs are manufacturable and meet internal standards Work across teams to resolve design challenges as they come up Support fabrication and field teams during builds Contribute to internal modeling standards and workflows Job Requirements: 3 to 4 years of hands-on SolidWorks, building production-level CAD Parametric modeling with clear design intent Understanding of manufacturing methods, materials and production workflows Ability to produce technical drawings for manufacturing and installation Working knowledge of mechanical systems and MEP-related components B.Sc. or Associate's degree in Mechanical Engineering, or equivalent certificate Strong documentation discipline Nice to Have: Certified SolidWorks Professional (CSWP) Sheet metal and CNC design experience PLM/PDM system familiarity MEP-integrated mechanical design background Benefits: Medical, dental and vision coverage 401(k) match PTO Life and disability insurance EV charging subsidies Professional development support Interview Process: Two-stage interview process, run on an expedited timeline. Please note we are unable to offer employer sponsorship for this role. Candidates must be authorised to work in the US already. 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: https://www.signifytechnology.com/diversity-and-inclusion/

Job title: IT Cloud Infrastructure Administrator Job type: Contract  Contract Length: 12 month Rate: 210 euros per day Role Location: Lisbon Hybrid (2 days in the office) Role and Responsibilities: The IT Ops role operates within an Agile and DevOps framework, serving as the guardian of Production across the full project lifecycle. Acting as a key stakeholder, they ensure production requirements are embedded into the technical solution from the outset, while maintaining the stability of both Production and non-Production environments and overseeing the monitoring and supervision of technical solutions. They are an active participant in project team meetings, contributing to collective decisions and assessments around complexity and risk throughout the project. Working closely with Application Production Support, they identify and champion best practices in application production, promoting them broadly across the organisation. Job Requirements:   Tools Proficient in modern monitoring and observability technologies including Elastic Search, Grafana, Prometheus, and Dynatrace Solid understanding of the DevOps toolchain — GitLab, Artifactory, Jenkins, SonarQube, Mattermost, and Ansible Hands-on experience with container technologies such as Docker and Kubernetes Experience with infrastructure-as-code using Terraform Methodologies DevOps Agile   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: Scala Developer Job type: Permanent Salary: Competitive + bonus Role Location: Hybrid in Berlin or Hamburg The company: An established organisation building scalable, reliable backend services for modern transportation and autonomous mobility solutions. The teams are international, cross-functional, and focused on creating high-impact, customer-focused software. Role and responsibilities: Develop and enhance payment-related backend services using Scala. Contribute to a smooth, secure payment experience for users. Maintain high engineering standards through testing, reviews, and validation. Work collaboratively in an agile, cross-functional team. Job requirements: Experience with Scala and functional programming (ZIO or Cats Effect a plus). Interest or experience in distributed systems, Kubernetes, and AWS. Understanding of DevOps practices: automated testing, IaC, CI/CD, monitoring. Fluent English communication. Benefits: Competitive salary & bonus Hybrid working setup Up to 6 weeks per year working remotely from abroad Public transport ticket provided Fitness/bike schemes Learning budget, workshops, and training opportunities Mental health support 30 days annual leave + sabbatical options Relocation assistance Dog-friendly offices 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 GPU Compute Engineer (Rust) Job type: Permanent (B2B) Salary: €100,000 - flexibility for the right candidate Role Location: Remote (Poland) The company: A high-performance computing company building next-generation GPU orchestration and distributed compute infrastructure. Role and responsibilities: Integrate advanced GPU hardware into a distributed orchestration platform Develop and optimise Vulkan compute pipelines and GPU kernels Build low-level systems software in Rust/C++ for GPU control and monitoring Improve GPU scheduling, memory management, and resource utilisation Optimise high-speed GPU-to-GPU communication and RDMA networking Work closely with hardware and SDK teams to troubleshoot performance and integration issues Job requirements: Strong experience with GPU programming (Vulkan, CUDA, OpenCL, or similar) Solid understanding of GPU architecture, memory, and performance optimisation Systems programming background in Rust, C, or C++ Experience with low-level programming concepts including DMA, PCIe, and memory management Familiarity with compute shaders, SPIR-V, and GPU debugging/profiling tools Exposure to embedded systems, device drivers, or hardware integration is beneficial Understanding of high-performance networking or RDMA is a plus Benefits: Work on cutting-edge GPU and compute infrastructure Opportunity to influence architecture and SDK development Collaborative engineering environment with direct hardware exposure Remote working Competitive compensation package 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. Benefits: Work on cutting-edge GPU and compute infrastructure Opportunity to influence architecture and SDK development Collaborative engineering environment with direct hardware exposure Remote working Competitive compensation package 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  

Role: Staff Engineer Location: Latam Signify are working with a fast growing global SaaS business looking for a Staff Engineer to join their engineering team. This is a senior individual contributor role with significant influence across the organisation you will shape the technical direction of our platform, raise the bar for engineering quality, and work closely with product to turn complex problems into elegant, scalable solutions. This is not a management role, but it carries real weight. You will be the person others turn to when the hardest problems need solving, and your decisions will have a direct and lasting impact on how they build. About the role You will own the design and delivery of complex systems across our platform, working closely with product managers and designers to translate commercial objectives into technically sound, well-executed solutions. You understand that engineering exists to serve the customer, and you bring that perspective to every decision you make. A core part of how you work is the intelligent use of AI tooling. You don't just use these tools occasionally  they are a deliberate, structured part of your daily workflow, helping you move faster, think more clearly, and deliver higher quality work. You also understand the risks and limitations of these tools and know how to apply them responsibly. You are comfortable with ambiguity, confident in your technical judgement, and experienced enough to know when to move fast and when to slow down and get it right. Requirements · More than 8 years of commercial experience in a product-focused engineering environment, working within fast-paced SaaS or technology businesses · Deep expertise in one or more JVM languages Java, Kotlin, or Scala  with a strong understanding of how to build robust, maintainable systems at scale · Proven experience designing, building, and operating public or internal REST APIs, including documentation, versioning, and long-term ownership · Strong system design skills, with the ability to architect distributed systems that are reliable, performant, and scalable across a global user base · A track record of working closely with product managers and designers to shape requirements, challenge assumptions, and deliver outcomes that genuinely serve the customer · Hands-on experience using AI tooling as part of your daily development workflow  including code generation, debugging, planning, and review with a clear-eyed understanding of where these tools add value and where they introduce risk · Experience setting and upholding engineering standards across code quality, testing, CI/CD, and architecture within a team or wider organisation · Strong communication skills, with the ability to explain complex technical decisions to both technical and non-technical stakeholders