Software Engineer I, Infrastructure

FactSet · London, GBR

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Full-timeMid-levelSept 2026 · checked today

FactSet creates flexible, open data and software solutions for over 200,000 investment professionals worldwide, providing instant access to financial data and analytics that investors use to make crucial decisions.

At FactSet, our values are the foundation of everything we do. They express how we act and operate, serve as a compass in our decision-making, and play a big role in how we treat each other, our clients, and our communities. We believe that the best ideas can come from anyone, anywhere, at any time, and that curiosity is the key to anticipating our clients’ needs and exceeding their expectations.

Position Overview

FactSet is looking for a Software Engineer I to join our Core Infrastructure organisation. The Core Infrastructure organisation’s mission is to power FactSet and its clients with secure, reliable infrastructure by advancing hybrid cloud, resiliency, and the FactSet.dev Internal Developer Platform.

In this role, you will work with a team of experienced engineers to maintain and scale Tier 0 infrastructure that’s used to host and route requests to hundreds of microservices. You will gain hands-on experience with C++, Python, Linux, AWS, Kubernetes, Terraform, and network protocols.

Key Responsibilities

Design, implement, and test code changes

Participate in an on-call rotation to respond to critical issues

Participate in code reviews

Collaborate with engineers who use our infrastructure and help them solve their problems

Utilise AI tools to streamline workflows and boost productivity

Required Qualifications

Bachelor's degree in Computer Science or a similar technical degree, or equivalent professional experience

Ability to work a hybrid schedule, working three days per week minimum in our London office

Proficiency with a high-level programming language

Good technical, collaborative, and troubleshooting skills

Strong analytical and problem-solving skills

Desired Skills

Proficiency with C++, Python, and Linux

Exposure to common cloud infrastructure components (AWS preferred)

Exposure to Kubernetes

Previous professional experience in software engineering or a similar field

Strong verbal and written communication skills

Company Overview

FactSet (NYSE:FDS | NASDAQ:FDS) helps the financial community to see more, think bigger, and work better. Our digital platform and enterprise solutions deliver financial data, analytics, and open technology to more than 8,200 global clients, including over 200,000 individual users. Clients across the buy-side and sell-side, as well as wealth managers, private equity firms, and corporations, achieve more every day with our comprehensive and connected content, flexible next-generation workflow solutions, and client-centric specialized support. As a member of the S&P 500, we are committed to sustainable growth and have been recognized among the Best Places to Work in 2023 by Glassdoor as a Glassdoor Employees’ Choice Award winner. Learn more at www.factset.com and follow us on X and LinkedIn.

At FactSet, we celebrate difference of thought, experience, and perspective. Qualified applicants will be considered for employment without regard to characteristics protected by law.