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AI, ML, & Data Engineering

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AI, ML, & Data Engineering

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Job title: Senior Software Engineer Job type: Permanent Salary: $150K – $225K + Equity  Role Location: Boston, United States The Company: We’re partnering with a well-funded, fast-scaling healthtech startup reinventing musculoskeletal care using proprietary AI and 3D-printing technology. The business has developed a web-based, sensor-free AI vision platform that transforms a 30-second scan into a clinically approved, precision-manufactured medical device. Already trusted by Fortune 50 employers, major health systems, and national manufacturers, the platform is expanding access to preventative care for hundreds of thousands of Americans. Fresh off a stealth funding round led by top-tier VCs, the company is: Growing 10x year-over-year Profitable month over month Scaling rapidly toward $100M ARR Operating with a high-ownership, execution-first culture out of Boston This is a rare opportunity to join at a true inflection point - early enough to shape the company, late enough to have real traction. Role and Responsibilities:  We’re hiring one of the founding engineers to help build and scale the core systems behind an AI-driven healthcare platform. You’ll have real ownership from day one, with a clear path to leading engineering as the company grows. You’ll influence architecture, technical direction, and engineering culture - while working on technology that measurably improves patient outcomes. Job Requirements: Strong experience with TypeScript and AWS, including infrastructure and architectural decision-making Proven experience building and scaling backend systems for real-time or AI-enabled applications Deep understanding of API design and developer-facing platforms Experience optimizing data pipelines and system performance at scale Strong fundamentals in security, reliability, and fault-tolerant system design Product-focused: You think deeply about user impact Ownership-driven: You want responsibility, not hand-holding Clear communicator: You can challenge ideas and collaborate effectively Bias to action: You move fast and ship often Mission-motivated: You want your work to change lives, not just metrics Build technology that helps people move without pain Join early enough to shape architecture, culture, and leadership Operate in a no-bureaucracy, high-trust environment Receive meaningful equity in a rapidly scaling, VC-backed healthtech company Clear runway to Head of Engineering as the business grows 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

Senior SRE Manager, London, Global Exchange Operator London based, 4 days in office   We are working exclusively with one of the world's largest exchange operators, a business that sits at the heart of global financial markets across equities, options, futures and FX. They are looking for a Senior SRE Manager to be based in London, leading platform reliability across their European operations and global trading hours coverage.   The Role This is a senior leadership position sitting at the centre of a follow-the-sun support model. You will have direct oversight of SRE teams across European and APAC time zones, owning platform availability, incident response and operational excellence for some of the world's most critical low latency trading infrastructure. Alongside the people leadership element, you will be technically hands-on, troubleshooting complex production issues, driving automation and contributing directly to platform performance and capacity planning.   Tech Stack Low latency, bare-metal trading platforms bare metal Linux systems only (no cloud or kubernetes) UNIX shell, SQL, Python, C++ TCP/IP and Multicast networking   What They Are Looking For Proven SRE or technical operations leadership in financial markets or similarly critical infrastructure Strong understanding of US and European market structure, equities, options or futures Experience leading distributed, globally dispersed teams Excellent communicator, able to bridge technical and business stakeholders across time zones Background in software engineering or systems, network and database administration

Principal Python Engineer, London, Europe's Largest Equities Exchange   We are working exclusively with one of the world's largest exchange operators on a Principal Python Engineer hire in London. This is a senior individual contributor role within a small, highly skilled engineering team building and expanding the data pipeline and event streaming infrastructure that powers the largest equities exchange in Europe.   The Role   You will lead complex engineering projects end to end, working closely with business development and sales teams to deliver new products and features, and mentoring engineers across Europe and the US. The team takes software craftsmanship seriously — testable, maintainable code, pair programming and TDD are core to how they work.   Tech Stack   Expert Python, advanced SQL, deep Linux knowledge PostgreSQL, Snowflake Apache Kafka, Apache Airflow Django, Flask or FastAPI TDD, BDD, pair programming Java familiarity a plus   What They Are Looking For   Principal or Staff level Python engineer with strong leadership skills Degree in Computer Science or related field preferred Financial markets experience a strong plus — market data, order management, algorithmic trading or financial systems integration Someone who takes genuine pride in code quality and engineering standards   The Package   Competitive salary and incentive compensation Private medical including dental, private GP service, life insurance 7% pension contribution, no employee contribution required 25 days holiday rising to 30, complimentary lunch daily 4 days in office, London

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: HRIS Director Job type: Perm Salary: $145,000 to $180,000 base plus performance bonus (DOE) Role Location: Florida (Hybrid or Onsite). Open to candidates who currently reside in the State of Georgia. The company: We are partnering with an established organization in Georgia with 200 or more employees that is investing in the systems and team behind its people operations. They are hiring an HRIS Director to own the strategy, the platforms, and the people who run them. This is a leadership seat with real ownership, reporting into senior HR or executive leadership, where you set the direction for how the company runs HR technology and build the team to deliver it. Role and responsibilities: Own the strategy and roadmap for the organization's HRIS and payroll technology. Lead and grow a team of HRIS analysts, coordinators, and specialists, including hiring, mentoring, and development. Manage core platform implementations, upgrades, integrations, and migrations end to end. Set standards for data governance, security, compliance, and reporting accuracy. Partner with HR, Payroll, IT, and Finance leadership to align systems to business needs. Own vendor relationships, contracts, and platform evaluations. Build reporting and analytics that give leadership visibility into the workforce. Drive process improvement and automation across the HR technology stack. Job requirements: 5 or more years of leadership experience in HRIS, having managed or coordinated a team (manager, team lead, or senior coordinator level and above). Experience at an organization with 200 or more full-time employees. Deep, hands-on expertise with one or more major HRIS or payroll platforms (Workday, UKG, ADP, Oracle HCM, SAP SuccessFactors, Paycom, or Dayforce). Proven ownership of HRIS strategy, implementations, integrations, and reporting. Strong understanding of HR and payroll processes, data governance, and compliance. Track record of building, leading, and retaining a team. Legally authorized to work in the United States. Benefits: Competitive base salary plus performance bonus Medical, dental, and vision coverage 401(k) with employer match Paid time off and paid holidays Leadership role with ownership of the HRIS function and its roadmap A team you build and lead directly 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: HRIS Director Job type: Perm Salary: $145,000 to $180,000 base plus performance bonus (DOE) Role Location: Florida (Hybrid or Onsite). Open to candidates who currently reside in the State of Florida. The company: We are partnering with an established organization in Florida with 200 or more employees that is investing in the systems and team behind its people operations. They are hiring an HRIS Director to own the strategy, the platforms, and the people who run them. This is a leadership seat with real ownership, reporting into senior HR or executive leadership, where you set the direction for how the company runs HR technology and build the team to deliver it. Role and responsibilities: Own the strategy and roadmap for the organization's HRIS and payroll technology. Lead and grow a team of HRIS analysts, coordinators, and specialists, including hiring, mentoring, and development. Manage core platform implementations, upgrades, integrations, and migrations end to end. Set standards for data governance, security, compliance, and reporting accuracy. Partner with HR, Payroll, IT, and Finance leadership to align systems to business needs. Own vendor relationships, contracts, and platform evaluations. Build reporting and analytics that give leadership visibility into the workforce. Drive process improvement and automation across the HR technology stack. Job requirements: 5 or more years of leadership experience in HRIS, having managed or coordinated a team (manager, team lead, or senior coordinator level and above). Experience at an organization with 200 or more full-time employees. Deep, hands-on expertise with one or more major HRIS or payroll platforms (Workday, UKG, ADP, Oracle HCM, SAP SuccessFactors, Paycom, or Dayforce). Proven ownership of HRIS strategy, implementations, integrations, and reporting. Strong understanding of HR and payroll processes, data governance, and compliance. Track record of building, leading, and retaining a team. Legally authorized to work in the United States. Benefits: Competitive base salary plus performance bonus Medical, dental, and vision coverage 401(k) with employer match Paid time off and paid holidays Leadership role with ownership of the HRIS function and its roadmap A team you build and lead directly 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: HRIS Director Job type: Perm Salary: $145,000 to $180,000 base plus performance bonus (DOE) Role Location: Florida (Hybrid or Onsite). Open to candidates who currently reside in the State of Florida. The company: We are partnering with an established organization in Florida with 200 or more employees that is investing in the systems and team behind its people operations. They are hiring an HRIS Director to own the strategy, the platforms, and the people who run them. This is a leadership seat with real ownership, reporting into senior HR or executive leadership, where you set the direction for how the company runs HR technology and build the team to deliver it. Role and responsibilities: Own the strategy and roadmap for the organization's HRIS and payroll technology. Lead and grow a team of HRIS analysts, coordinators, and specialists, including hiring, mentoring, and development. Manage core platform implementations, upgrades, integrations, and migrations end to end. Set standards for data governance, security, compliance, and reporting accuracy. Partner with HR, Payroll, IT, and Finance leadership to align systems to business needs. Own vendor relationships, contracts, and platform evaluations. Build reporting and analytics that give leadership visibility into the workforce. Drive process improvement and automation across the HR technology stack. Job requirements: 5 or more years of leadership experience in HRIS, having managed or coordinated a team (manager, team lead, or senior coordinator level and above). Experience at an organization with 200 or more full-time employees. Deep, hands-on expertise with one or more major HRIS or payroll platforms (Workday, UKG, ADP, Oracle HCM, SAP SuccessFactors, Paycom, or Dayforce). Proven ownership of HRIS strategy, implementations, integrations, and reporting. Strong understanding of HR and payroll processes, data governance, and compliance. Track record of building, leading, and retaining a team. Legally authorized to work in the United States. Benefits: Competitive base salary plus performance bonus Medical, dental, and vision coverage 401(k) with employer match Paid time off and paid holidays Leadership role with ownership of the HRIS function and its roadmap A team you build and lead directly 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/

Core function: Acting as the bridge between the clinical trial/scientist team and the software engineering team building a companion mobile application.  Key requirements: Clinical trial experience (any phase, trial support, regulatory, back end IT, or direct patient facing work all count) 7+ years of PM experience OR less with PMP certification Comfort translating clinical/regulatory requirements to a technical/software team without that same background Mobile application experience is a strong plus, though not required. Candidates with genuine crossover (clinical and mobile) are the most competitive Strong, polished communication and stakeholder management skills, since this is a client facing role interfacing directly with the software delivery team

Job title: GCP DevOps Engineer Job type: Contract  Contract Length: 6 months Rate: 150-180 euros per day Role Location: Fully Remote - Europe Role and Responsibilities:  Design, build, secure, and manage cloud-native and hybrid platforms. Deploy customer environments within clients' managed cloud environments, in alignment with the platform's standards and practices. Provide cloud advisory and engineering services to external clients. Contribute to the implementation of technical vision and product roadmaps. Implement solutions aligned with clients' security and data integrity enterprise standards. Build constructive working relationships across teams, functions, and cultures, embodying the client's behaviors and values. Consult on and escalate operational issues and challenges that fall outside one's own experience or skill set. Job Requirements:   Deep technical experience with GCP (project or operational work); knowledge of Azure is a plus. Experience developing automation scripts to manage GCP environments; familiarity with DevOps and CI/CD concepts is a strong plus. Experience designing and building Infrastructure-as-Code (IaC) solutions (Terraform). Experience managing, designing, and building containerized solutions (e.g., Kubernetes/Docker). Experience with Identity Management, Networking, Backup, and Configuration Management. Strong communication skills. Proven ability to dynamically prioritize work to meet deadlines and work effectively with minimal supervision in a team environment. Ability to make relevant and appropriate decisions within your field of expertise. Strong attention to detail. Knowledge of ITIL framework or Agile methodologies. Fluent in English. 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: Full Stack Engineer Job type: Contract  Contract Length: 12 months Rate: 200 euros per day Role Location: Fully Remote - Europe Role and Responsibilities:  End-to-End Delivery: Architect and ship production-ready features across the full stack, from React/Next.js front ends to Python and TypeScript back ends. AI/LLM Architecture: Design and optimize RAG pipelines, text-chunking strategies, and dynamic context windows. Data & Search: Own the data layer, including relational data modeling in PostgreSQL (via SQLAlchemy or Prisma) and high-performance vector search optimization using Qdrant or pgVector. API Design: Build robust REST and GraphQL APIs using Python (FastAPI, Pydantic) and TypeScript (Node.js, NestJS, Fastify). DevOps & Infrastructure: Containerize applications with Docker and manage CI/CD pipelines (e.g., Azure Pipelines) independently, without relying on dedicated DevOps support. Job Requirements:   7+ Years of Experience: Backend-heavy or full-stack software engineering background. Dual-Language Fluency: Deep, production-level expertise in both Python and TypeScript backend ecosystems. Frontend Competence: Practical proficiency in React/Next.js, with the ability to manage state and build the UI required for your features. AI/Data Experience: Hands-on experience integrating LLMs, building RAG architectures, and operating vector databases (Qdrant, pgVector). High Autonomy: A proven track record of thriving in fast-moving, rapidly evolving environments, with the ability to learn new tools and AI concepts on the fly. Database & DevOps: Strong SQL fundamentals, API security experience (OAuth/JWT), and pragmatic CI/CD and Docker skills. 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