Full-Stack Developer (Senior)

About our client: Our client is a leading payments company dedicated to transforming the payment landscape by providing a risk-free and empowering payment solution. Their payment solution aims to alleviate debt burdens, enabling shoppers to pay as they earn, free from the threat of accumulating charges. You will be working on the latest tech with ample opportunity for additional training and growth in a flexible environment. What you will be doing: Influence security, scalability, reliability, and high-availability across distributed systems and select cost-efficient, performant technologies. Design and ship scalable, event-driven, serverless systems on AWS, focusing on fraud-resistant payment systems and high-throughput marketplace features. Develop robust back-end services using Node.js and TypeScript, and user interfaces with Vue.js and React. Implement and manage data services, deploy applications using serverless functions, utilize AWS CDK for infrastructure automation, and develop mobile web applications with Capacitor. Develop and maintain observability (monitoring, metrics, alerting), participate in code reviews, resolve complex production issues, and mentor other engineers. What our client is looking for: Expertise in both back-end (Node.js/TypeScript) and front-end (Vue.js/React) development. Strong, hands-on experience building, deploying, and optimising scalable, event-driven applications on AWS using serverless components (Lambda, DynamoDB, API Gateway, S3, EventBridge/SQS/SNS) and CDK for IaC. Proven experience building high-throughput Node.js/TypeScript back-ends supporting millions of monthly transactions. Competence in profiling and optimising serverless workloads (e.g., cold-start mitigation, concurrency tuning, cost/latency trade-offs). Experience with building reusable components (React/Vue) and developing/deploying web-based mobile applications using Capacitor. Commitment to writing clean, well-tested code, active participation in code reviews, and resolving complex production issues. Job ID: J107071 For a more comprehensive list of opportunities that we have on offer, do visit our website - https://www.parvana.co.uk/careers Requirements Full-Stack, Node.js, TypeScript, Vue.js, React, AWS, AWS CDK, Serverless, Capacitor