Senior Staff Engineer in City of London

New Yesterday

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Job Description
I’m supporting an early-stage AI startup building genuinely transformational tooling for some of the most document-heavy industries out there.
They’re now looking for a Senior or Staff Software Engineer who wants to design and ship AI-driven product capabilities end-to-end, from the first customer conversation all the way to production rollout and adoption.
What you’ll be doing
Owning core product components from concept → architecture → build → deployment → customer adoption Designing scalable systems for data extraction, workflow automation, document analysis and multi-step content Using tools like Cursor, Copilot, and Claude Code to move fast and focus on high-level engineering decisions Collaborating with customers and internal teams to understand real business problems Implementing secure-by-default, privacy-first approaches Staying close to research and continually experimenting with new AI techniques Mentoring engineers and helping shape engineering best practices
About you
Strong Python engineering background with a track record of shipping real product features Experience in high-growth, fast-moving environments Confident designing and maintaining APIs and integrations Comfortable working end-to-end across architecture, coding, deployment and customer delivery You think like a product engineer, working in tight loops, understanding the “why,” and focusing on real user value You use AI coding tools as leverage rather than novelty Curious, honest, quick to dive deep, and not afraid to challenge assumptions Strong communicator who can explain complex ideas clearly Ambitious, resilient, and motivated by solving genuinely tricky problems
What’s on offer
£100k–£150k salary Meaningful equity Unlimited annual leave Enhanced pension £100 monthly wellbeing budget £1000 annual L&D budget Strong parental leave package
Interview process
Short intro call with engineering leadership Live technical task + deep-dive In-person culture conversations with the wider team, including founders
If you are interested in applying for this job please press the Apply Button and follow the application process. Energy Jobline wishes you the very best of luck in your next career move.
Location:
City Of London
Job Type:
FullTime
Category:
Engineer, Senior, Staff, Engineering

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