Lead Software Engineer - Python

J.P. Morgan; Greater London; On-site; GBP 80,000 - 100,000; Full time

Job summary

A leading global financial services firm is seeking a Software Engineer (L4) to join their agile team in London. You will design and deliver high-quality technology products, collaborate across teams, and lead junior developers. The role requires significant experience in Python and microservices architecture, with a strong focus on CI/CD and security practices. This position offers a dynamic environment where innovative solutions are prioritized.

Qualifications

• 5+ years of commercial experience working with Python.
• Experience in building and maintaining a microservices architecture.
• Solid understanding of CI/CD and application resiliency.

Responsibilities

• Engineer performant, scalable, and reusable RESTful micro-services and APIs using Python.
• Collaborate with teams to achieve MVP and target state.
• Act as a lead developer mentoring junior developers.

Skills

Python

Microservices architecture

Flask

CI/CD

Agile methodologies

Tools

Jenkins

MongoDB

Job description

We have an exciting opportunity within an agile development team working on a best-in‑class cross‑asset portfolio solutions platform (Vida). You’ll be working alongside other talented engineers (globally) and have exposure to full lifecycle of portfolio management across businesses

As a Software Engineer (L4) at JPMorgan Chase, you serve as a Lead Engineer on our agile team to design and deliver trusted market‑leading technology products in a secure, stable, and scalable way. You will partner with Product Owners, Front Office, Quantitative Research and Visual Designers to bring their vision of the next set of critical business functions into reality.

Job responsibilities

• Engineer a suite of performant, scalable and reusable RESTful micro-services and APIs using Python. Championing quality and owning the non-functional requirements.
• Collaborate with the team to form the sprints that will get us to the MVP and then finally the target state.
• Act as a Lead developer who will help set direction and best practice around automated testing, platform framework, SDLC as well as acting a point of contact for more junior developers to give them guidance on best practices through mentoring.
• Collaborate with other backend developers to get involved with code reviews and building up our suite of microservices components to facilitate faster development.
• Collaboration with a number of teams including Trading, Sales, Quantitative Research, as well as other technology teams.

Required qualifications, capabilities, and skills

• Commercial experience working with Python (5y+).
• Experience building and maintaining a microservices architecture.
• Knowledge of the Python web frameworks (e.g. Flask, Tornado, Bottle) and OO databases (e.g. mongo-db).
• Experience in developing, debugging and automated testing (e.g. PyUnit) within a commercial setting.
• Experience in leading an agile delivery team leveraging scrum, sprint planning, retrospectives and reporting progress to senior stakeholders.
• Solid understanding of CI/CD (e.g. Jenkins), Application Resiliency, and Security.
• Experience collaborating with frontend technology teams in designing scalable and reusable RESTful APIs.

Preferred qualifications, capabilities, and skills

• Exposure to python libraries such as pandas, scipy and numpy.
• Exposure to python concurrency through python multiprocessing would be advantageous.
• Exposure to grid computing concepts would be advantageous.
• Working within Investment Bank / Finance Technology.