Senior Engineer - Payments

Northwind Robotics helps ambitious businesses unlock global growth, and we take the same approach with our people. We encourage innovation and movement, collaboration and problem-solving, and foster an environment where everyone can feel they belong, are valued, supported and empowered to succeed. If you’re a collaborator who wants to help transform how businesses operate globally, get in touch - we’d love to discuss how Northwind Robotics can accelerate your career so you can shape the future. Senior Fullstack Engineer – Payments Experience (PAYE) Location: London (Hybrid: 4 days office / 1 day remote) About the Role We are seeking a Senior Fullstack Engineer to play a crucial role in our Payments Experience (PayE) team. In this role, you will help scale our main web application and build the tooling and processes that empower Northwind Robotics’s product teams to ship amazing features efficiently. Your mission is to enable independent development across teams while maintaining a unified, seamless, and high-quality experience for our customers. We value the right attitude, an entrepreneurial spirit, and the courage to ask hard questions. We look for engineers who are informed by data, driven by customer empathy, and are naturally curious. You should be language and framework-agnostic, but possess strong opinions (weakly held) on using the right tool for the job. Key Responsibilities Feature Delivery & Platform Evolution: Contribute to the development of our next-generation platform channels. Partner on the delivery of new products while continuously maintaining and improving existing ones. Architecture & Design: Collaborate with team members and engineering leaders to design new services and components utilizing our internal Request for Comments (RFC) process. End-to-End Ownership: Embrace our "You build it, you own it" philosophy by taking full responsibility for the development, containerization, deployment, and ongoing maintenance of your services. Observability & Quality: Ensure your code is reliable, highly testable, and well-covered by unit and integration tests. Integrate robust monitoring and alerting into your services. Infrastructure as Code: Contribute to our CI/CD pipelines and Infrastructure as Code (IaC) tools for seamless service and infrastructure deployment. Mentorship: Mentor junior and mid-level engineers, fostering a culture of technical excellence, continuous learning, and innovation. About You Technical Requirements: Experience: 5+ years of professional software development experience with a proven track record of building high-performance, client-facing web applications. Backend Stack: Proficient with Python, FastAPI, PostgreSQL, Redis , and designing secure REST APIs . Frontend Stack: Proficient with TypeScript, React, Jest , and Storybook . Experience with Micro Frontends (MFEs) is a major plus. DevOps & Cloud: Hands-on experience with Docker, Kubernetes, Terraform , and AWS . Foundations: Strong understanding of system architecture, API design, scalable service integration, Linux systems, and Git version control. Core Soft Skills: Strong knowledge of basic algorithms, object-oriented/functional design principles, and best-practice patterns. Excellent communication and collaboration skills in English for seamless international teamwork. A relevant educational background (Bachelor's or Master's degree in Computer Science or a related field) or equivalent practical experience. What We Offer Compensation: Competitive salary and benefits package. Bonuses: Discretionary performance-based bonus. Growth: Continued personal development through funded training and professional certifications. Open Source Culture: We are Open Source-friendly, following open principles in our internal projects and actively encouraging contributions to the wider external community. About us Northwind Robotics delivers sophisticated, integrated solutions — business accounts, hedging, and financing — on a single platform with a seamless workflow. Our success is built on a simple premise and singular purpose: To help businesses operate and scale globally. Since its founding in 2009, Northwind Robotics has always been a fast-growing leader in fintech. Today, we bring together 1,800+ Eburians across nearly 70 cities and we’re always looking to add to our team. At the heart of our offering is a proprietary platform, purpose-built to help businesses seamlessly streamline and manage global cash flow. We focus on continuous product evolution and innovation to build the infrastructure for borderless growth and help our clients scale at every stage. The opportunities at Northwind Robotics are as diverse as our people, ranging from business development to engineering roles across our tech pillars. We believe in inclusion. We stand against discrimination in all forms and are against the intolerance of differences that makes us a modern and successful organisation. At Northwind Robotics, you can be whoever you want to be and still feel a sense of belonging no matter your story.