Senior Engineer

Job Description : London | Full-Time | Senior Engineer
Permutable Technologies is a fast-growing AI company helping the world’s leading financial institutions make smarter decisions through real-time market intelligence and LLM-driven news analytics. We’re entering a critical scale-up phase and are hiring a Senior Engineer to work alongside a talented engineering team, helping us scale product, systems, and team maturity.
This role is for someone who has been through scale-up before and understands how to partner with platform leadership while remaining deeply hands-on. You’ll help turn strong commercial momentum into a robust, scalable engineering foundation.
What You’ll Be Doing
Work in close partnership with the Head of Platform to execute on platform strategy and delivery
Own and deliver key parts of our core product stack, including real-time APIs, data pipelines, and ML/LLM-powered analytics
Act as a senior technical leader within the team—mentoring engineers and setting engineering standards
Support customer-facing rollouts with Product and Commercial teams, ensuring production reliability
Help improve engineering processes, observability, and system resilience as we scale
Stay hands-on while helping the platform function operate more effectively
What You Bring
Senior engineering with majority experience in a scale-up or fast-growing start-up
Strong backend or platform engineering background (data-intensive systems a plus)
Comfortable working alongside a platform lead, contributing to architecture and execution
Experience mentoring engineers and leading by example
Pragmatic decision-maker who balances speed with robustness
Bonus: exposure to LLM, Transformers or financial/market data products
Tech We Work With
Agile
Why Join Permutable?
A wide network of established institutional clients
Frontier AI used in financial and commodities markets
Small team, high trust, low bureaucracy
Clear ownership and influence without management overhead
Opportunity to grow into staff / principal responsibilities as we scale
Industry: Business Intelligence Platforms
Employment Type: Full-time
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