Senior Full-Stack Engineer - Infrastructure Platforms

J.P. MORGAN; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

J.P. Morgan in London seeks an experienced Software Engineer III within the Infrastructure Platforms, Data Center Services team.

You will design, develop, and deliver full-stack solutions using React on the frontend and Node.js/TypeScript, Python on the backend, driving secure, scalable software aligned with business goals. You will mentor juniors, contribute to architecture artifacts, and apply AI-assisted development tools within a secure SDLC, while collaborating across agile teams to ensure

Qualifications

• Formal training or certification on software engineering concepts and proficient applied experience.
• Hands-on practical experience in system design, application development, testing, and operational stability.
• Proficiency in modern programming languages, with strong experience in JavaScript/TypeScript (React, Node.js) required.
• Experience developing, debugging, and maintaining code in a large-scale environment using modern programming and database querying languages.
• Solid understanding of agile methodologies, including continuous integration/continuous delivery, application resiliency, and security practices.
• Demonstrated knowledge of software applications and technical processes within a technical discipline (e.g., cloud, AI/ML, or mobile).
• Working knowledge of the Software Development Life Cycle.
• Hands-on experience using enterprise-authorized AI-assisted software development tools with ability to evaluate AI outputs.

Responsibilities

• Apply advanced technical skills to design, develop, and deliver full-stack solutions across frontend (React) and backend (Node.js/TypeScript, Python) services.
• Create secure, high-quality production code and maintain algorithms that run reliably and synchronously with appropriate systems.
• Produce architecture and design artifacts for complex application components, ensuring design constraints are met in implementation.
• Gather, analyze, synthesize, and develop visualizations from large data sets in support of continuous improvement of software applications.
• Proactively identify hidden problems and patterns in data, and use insights to drive improvements to coding hygiene and system architecture.
• Develop subject matter expertise in a specific technical domain relevant to Data Center Services (e.g., UI/UX, backend architecture, SDLC tooling, testing strategy, or operational support).
• Contribute to software engineering communities of practice and employee resource groups through facilitation, guest speaking, or content contribution.
• Mentor junior software engineers and actively support their technical growth and development.
• Leverages enterprise-authorized AI coding assist tools within the work environment to improve code quality, delivery speed, and productivity, with peer review and secure coding standards.

Skills

JavaScript/TypeScript (React, Node.js)

React

Node.js

Python

Agile methodologies

CI/CD

AI-assisted development tools

Tools

AI coding assistants

Job description

J.P. Morgan in London seeks an experienced Software Engineer III within the Infrastructure Platforms, Data Center Services team.

You will design, develop, and deliver full-stack solutions using React on the frontend and Node.js/TypeScript, Python on the backend, driving secure, scalable software aligned with business goals. You will mentor juniors, contribute to architecture artifacts, and apply AI-assisted development tools within a secure SDLC, while collaborating across agile teams to ensure