Jobs in London - Senior Full Stack Engineer • South West London

Company: Prism Digital

South West London

Senior Full Stack Engineer | Node.js & SQL (Aurora) | Data‑Heavy FinTech PlatformYou’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 RoleIn 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 environmentsNode.js backend developmentSQL 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 reviewProduct mindset and ownership from build to deploy in an agile environmentWhat You’ll Work WithBackend: Node.js (plus some Python, C++)Frontend: JavaScript (Vue.js) & TypeScriptData: PostgreSQL (Aurora) & DynamoDBCloud & CI/CD: AWS Lambda, GitHub ActionsNice to HavesFinancial services or large‑scale market data experiencePython & C++ Development experienceDatabase partitioning/re‑architecture exposureMentoring/tech‑lead experience (or appetite to step up)Modern software engineering/development practices, including micro-services, agile, TDD, etc. and common system integration patternsKnowledge of AWS services and IaCWhy Join / ProjectsRe‑architect and scale core services powering a must‑have analytics productGet the product ready for some serious scale & growthShape 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 dayDirect impact on customers who analyse and ingest your data via APIs at a serious scaleClear growth path with potential to move into team leadershipEmployee BenefitsSalary: £100,000–120,000 circaHybrid: 2 days in‑office (Mondays & Wednesdays, non‑negotiable) in Victoria area, LondonPension scheme; private medical; basic on‑site gym access25 days’ holiday plus bank holidays; learning & development; team events; cycle to work; choice of quality hardwareA great role here and the chance to work with an awesome team. Apply AAPSenior Full Stack Engineer | Node.js & SQL (Aurora) | Data‑Heavy FinTech Platform