Senior Full Stack Engineer | Node.js & SQL (Aurora) | Data‑Heavy FinTech Platform You’ll join a 50‑person, London/US SaaS scale‑up serving top‑tier investment firms with a market‑leading, data analytics platform for global credit investors (think Reuters and Bloomberg) The engineering org is London‑based (circa 13–14 people across DevOps, Frontend, AI/ML, Backend, and QA). Everything is the latest and greatest tech in the cloud, serverless etc. The office is based in Victoria and the team go in twice a week (Mondays & Wednesdays) for collaboration meetings. The Role In this role, 80% of your time will be spent on development (Node.js) and 20% of your time leading projects. When you're developing, 90% of this time will be working on Node.js code with a light 10% frontend touch, designing and delivering features end‑to‑end while helping re‑architect a platform that processes billions of rows of financial data. You’ll drive architectural decisions, own services to production, and contribute to how massive datasets are modelled, partitioned, and served to customers. Non‑Negotiables: 8–10 years’ software engineering experience across multiple environments Node.js backend development SQL mastery with experience of working with large‑scale, data‑heavy systems (our client has billions of rows) Architectural design experience and comfort with frequent releases/peer review Product mindset and ownership from build to deploy in an agile environment What You’ll Work With Backend: Node.js (plus some Python, C++) Frontend: JavaScript (Vue.js) & TypeScript Data: PostgreSQL (Aurora) & DynamoDB Cloud & CI/CD: AWS Lambda, GitHub Actions Nice to Haves Financial services or large‑scale market data experience Python & C++ Development experience Database partitioning/re‑architecture exposure Mentoring/tech‑lead experience (or appetite to step up) Modern software engineering/development practices, including micro-services, agile, TDD, etc. and common system integration patterns Knowledge of AWS services and IaC Why Join / Projects Re‑architect and scale core services powering a must‑have analytics product Get the product ready for some serious scale & growth Shape data models and access patterns for huge datasets and new product lines (beyond bonds & credit into new systems like loans, etc.) High‑trust engineering culture: own your code to production with you personally making 10–12 deploys per day Direct impact on customers who analyse and ingest your data via APIs at a serious scale Clear growth path with potential to move into team leadership Employee Benefits Salary: £100,000–120,000 circa Hybrid: 2 days in‑office (Mondays & Wednesdays, non‑negotiable) in the Victoria area, London Pension scheme; private medical; basic on‑site gym access 25 days’ holiday plus bank holidays; learning & development; team events; cycle to work; choice of quality hardware A great role here and the chance to work with an awesome team. Apply AAP Senior Full Stack Engineer | Node.js & SQL (Aurora) | Data‑Heavy FinTech Platform