Senior Node / React Engineer

Working Structure: Hybrid (London-based)

Pay Type: £700 PAYE inside IR35 per day

Paid Holidays

Tech Stack: Node.js, React, Nest.js, Python, AWS, Kafka, Terraform

Focus Areas: Microservices, CI/CD, API-first design, AI integration

Culture: Agile, automation-first, customer-centric, continuous learning

As a Senior Engineer, you are accountable for the quality, speed, and reliability of our microservices architecture, ensuring seamless user experiences and robust data security. You will transform innovative ideas into scalable code, automate everything from CI/CD to testing, and solve real customer problems at scale.

Your Mission: Lead the evolution of our platform by simplifying user journeys, optimizing microservices workflows, and extending our domain model into a cutting-edge knowledge graph.

What Success Looks Like:

• We achieve product-market fit through rapid iteration and customer feedback.
• Our delivery velocity accelerates as our microservices architecture matures.
• All features are accessible via a robust, API-first approach.
• Our services are resilient, observable, and easy to maintain.

What You Bring:

• Degree in Computer Science, Software Engineering, or equivalent experience.
• Extensive hands-on experience designing, building, and deploying distributed systems using microservices and event sourcing with Node.js and React.
• Solid experience of service-to-service communication, API design, and contract testing.
• You are comfortable in agile environments, resolving ambiguity.
• Strong focus on customer needs, with a passion for building platforms that empower clients.
• Commitment to cybersecurity best practices and data privacy.
• Automation-first mindset: from infrastructure to testing and deployment.
• Growth mindset: You embrace change, continuous learning, and innovation.

What's In It For You?

• End-to-end ownership: Engage directly with customers to close feedback loops and shape the product.
• Modern DevOps culture: Deploy microservices multiple times per day with confidence.
• Work with AI and expand your skills into Python and other emerging technologies.
• Be part of a collaborative, forward-thinking team building the next generation of microservices platforms.
• Continuous learning, we believe, ongoing training is key to success.

Our Tech Stack:

• Frontend: React
• Backend: Nest.js, Python/fastapi, LangChain
• Test Automation: Pact, Jest, Cypress, and Pytest (including AI test automation)
• Infrastructure: AWS ECS, PostgreSQL, Kafka (migrating from RabbitMQ)
• Infrastructure as Code: Terraform (using native AWS services where possible)
• CI/CD: GitHub-based tooling

Our Engineering Culture:

• We believe speed comes from quality, automation, and solving the right problems.
• We always leave things better than we found them.
• We start with the end in mind.
• We iterate quickly.
• If you build it, you fix it.
• We trust each other and ask for help.
• If you’re in a hole, stop digging.

About Us: We’re a well-funded, early-stage London-based startup on a mission to revolutionize compliance for banks and fintechs with cutting-edge, AI-powered regtech solutions. We’re building a product and engineering team to drive the platform in an agile way, using AI and ML at its core, enabled by microservices running in AWS. We aim for full CI/CD, deploying as soon as tests are green. We value clarity, transparency, and craftsmanship in everything we do. We believe that speed comes from doing things right, and we encourage creative use of AI, not just in our products, but in every aspect of how we work. Our London office is a hub for collaboration, and we embrace flexibility and remote work for most days. If you are not in London, or not even in the UK, we will make that work too.

What We Offer:

• Competitive compensation tailored to senior talent. (daily PAYE System)
• Flexible working arrangements (hybrid London).
• End-to-end ownership of impactful, open-ended challenges.
• Significant influence over technical and product direction.
• Supportive, achievement-driven environment that values curiosity, ownership, and clarity.
• Top-tier tooling and access to the latest AI resources.
• Direct collaboration with founders and senior leadership.