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I’m a full-stack software development engineer based in London, focused on building secure, scalable web applications and backend services for high-impact domains like banking and healthcare. I translate complex requirements into maintainable systems, designing clean APIs, responsive UIs, and efficient data models using modern TypeScript/JavaScript and Python/Java-based stacks. I enjoy working end-to-end—from frontend component design with React and TypeScript to backend architecture with Node.js, Express, NestJS, Django, and Java—while also improving reliability through testing, observability, and CI/CD. At teams like JPMorgan Chase and HSBC, I’ve delivered measurable performance, deployment, and quality improvements, and I keep projects robust with containerization, cloud tooling (AWS/Azure), and strong engineering practices like code reviews and automated testing.…I’m a full-stack software development engineer based in London, focused on building secure, scalable web applications and backend services for high-impact domains like banking and healthcare. I translate complex requirements into maintainable systems, designing clean APIs, responsive UIs, and efficient data models using modern TypeScript/JavaScript and Python/Java-based stacks. I enjoy working end-to-end—from frontend component design with React and TypeScript to backend architecture with Node.js, Express, NestJS, Django, and Java—while also improving reliability through testing, observability, and CI/CD. At teams like JPMorgan Chase and HSBC, I’ve delivered measurable performance, deployment, and quality improvements, and I keep projects robust with containerization, cloud tooling (AWS/Azure), and strong engineering practices like code reviews and automated testing.

Himanshu Saxena

Full Stack Developer, Web Developer, Software Engineer, +3

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I’m a full-stack software development engineer based in London, focused on building secure, scalable web applications and backend services for high-impact domains like banking and healthcare. I translate complex requirements into maintainable systems, designing clean APIs, responsive UIs, and efficient data models using modern TypeScript/JavaScript and Python/Java-based stacks. I enjoy working end-to-end—from frontend component design with React and TypeScript to backend architecture with Node.js, Express, NestJS, Django, and Java—while also improving reliability through testing, observability, and CI/CD. At teams like JPMorgan Chase and HSBC, I’ve delivered measurable performance, deployment, and quality improvements, and I keep projects robust with containerization, cloud tooling (AWS/Azure), and strong engineering practices like code reviews and automated testing.…I’m a full-stack software development engineer based in London, focused on building secure, scalable web applications and backend services for high-impact domains like banking and healthcare. I translate complex requirements into maintainable systems, designing clean APIs, responsive UIs, and efficient data models using modern TypeScript/JavaScript and Python/Java-based stacks. I enjoy working end-to-end—from frontend component design with React and TypeScript to backend architecture with Node.js, Express, NestJS, Django, and Java—while also improving reliability through testing, observability, and CI/CD. At teams like JPMorgan Chase and HSBC, I’ve delivered measurable performance, deployment, and quality improvements, and I keep projects robust with containerization, cloud tooling (AWS/Azure), and strong engineering practices like code reviews and automated testing.

Available to hire

I’m a full-stack software development engineer based in London, focused on building secure, scalable web applications and backend services for high-impact domains like banking and healthcare. I translate complex requirements into maintainable systems, designing clean APIs, responsive UIs, and efficient data models using modern TypeScript/JavaScript and Python/Java-based stacks.

I enjoy working end-to-end—from frontend component design with React and TypeScript to backend architecture with Node.js, Express, NestJS, Django, and Java—while also improving reliability through testing, observability, and CI/CD. At teams like JPMorgan Chase and HSBC, I’ve delivered measurable performance, deployment, and quality improvements, and I keep projects robust with containerization, cloud tooling (AWS/Azure), and strong engineering practices like code reviews and automated testing.

Skills

Experience Level

Expert

Expert

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Intermediate

Intermediate

Language

English

Fluent

Work Experience

Software Development Engineer II (SDE II) – Full Stack at JPMorgan Chase & Co.

June 1, 2026 - Present

Designed, developed, and maintained scalable full-stack banking platforms and backend services. Built responsive, accessible frontend applications using React, TypeScript, modern CSS/SCSS, and reusable component patterns. Developed backend services and application logic with Node.js, Python, Django, and Java using modular, MVC-aligned, service-oriented approaches. Designed and integrated RESTful APIs, GraphQL, and webhooks to connect platforms and automate business workflows. Modeled data and wrote complex queries across PostgreSQL, MySQL, SQL Server, SQLite, and MongoDB to improve processing and retrieval performance. Implemented CI/CD pipelines with Jenkins, GitHub, and Azure DevOps, and containerized services with Docker for cloud deployments on AWS/Azure.

Software Development Engineer II (SDE II) — Full Stack at JPMorgan Chase & Co.

June 1, 2026 - Present

Design, develop, and maintain scalable full-stack banking platforms; build responsive frontend applications with React and TypeScript; develop backend services and application logic using Node.js, Python, Django, and Java; design and integrate RESTful APIs, GraphQL services, and webhooks; model and optimize database schemas and data access across multiple SQL and NoSQL stores; implement end-to-end SDLC practices including reviews, testing, debugging, documentation, and production support; improve delivery through CI/CD with Jenkins and Azure DevOps and containerization with Docker for AWS/Azure deployments; troubleshoot performance/security issues and collaborate in Agile teams to deliver business-aligned solutions.

Software Engineer at HSBC Bank Holdings PLC

January 1, 2024 - December 31, 2025

Developed and maintained scalable microservices using Node.js, TypeScript, and GraphQL, improving API performance; built serverless applications with AWS Lambda and API Gateway to speed deployments and reduce overhead; created reusable React components with TypeScript and React Hooks, improving responsiveness and accessibility; implemented CI/CD pipelines with GitHub Actions, Docker, and Kubernetes to reduce release times; applied TDD using Jest/Vitest and frontend test libraries to improve confidence and coverage; optimized PostgreSQL and MongoDB data access for performance; integrated monitoring and alerting using Grafana, CloudWatch, and Splunk; improved security using Vault for secrets management and OAuth2 across microservices; supported migration toward event-driven/serverless architecture using AWS Lambda and Terraform.

Software Engineer at Nervecentre Software Ltd

October 1, 2022 - November 30, 2023

Built full-stack healthcare applications using React.js, Node.js, and Python, improving user experience and reducing page load times; integrated PostgreSQL and MongoDB for data-intensive healthcare dashboards with synchronized and scalable data access; designed and deployed cloud-native services on AWS using Docker, Kubernetes, and Terraform while maintaining high uptime; implemented CI/CD with Ansible and Vault for secure configuration and automated infrastructure management; developed automated unit and end-to-end tests using Playwright to reduce production defects.

Full Stack Developer (Contract) at Mitacron

August 1, 2022 - October 31, 2022

Developed RESTful APIs using Node.js and migrated frontend applications to Next.js, improving load performance; implemented React Query for efficient data fetching, caching, and state management; improved automated test coverage with Jest and a React testing library following TDD practices; developed and deployed microservices using AWS Lambda and the Serverless Framework; implemented CI/CD pipelines with GitHub Actions and Docker to enable automated deployments and trunk-based development.