Award-winning AI solutions for Financial Services
Staff Software Engineer
Location
United Kingdom
Posted
68 days ago
Salary
0
Seniority
Lead
Job Description
Staff Software Engineer
Aveni
• Setting technical direction for your squad. • Owning architectural decisions, managing technical risk, and representing the engineering perspective at our Architecture Review Board. • Leading AI-powered product development: designing LLM workflows, RAG pipelines, and agentic features that run on top of our AI platform in production, at scale. • Driving adoption of AI coding tools across the full SDLC, from planning and design through code review, testing, deployment and setting the bar for how the squad works. • Delivering production grade code across the full stack: Node.js or Python backends, event-driven AWS architecture, and React where the squad needs it. • Mentoring and growing engineers across AI and full-stack domains, through code reviews, design documents, and day-to-day pairing. • Collaborating with platform teams to consume shared capabilities and contribute reusable patterns back, not building one-off solutions when a platform component will do. • Ensuring everything we ship is compliant-by-design, auditable, and built to the standards expected of software in FCA regulated financial services.
Job Requirements
- A seasoned engineer with 10+ years of experience, including meaningful time building and operating AI/ML systems in production.
- Real technical leadership. You've set direction, made architectural calls, mentored others, and influenced how a team builds, not just what it ships.
- Strong hands-on AI/LLM skills: prompt engineering, RAG, model evaluation and agent frameworks. You know how these work in production, not just in demos.
- Deep expertise in Node.js or Python, with solid experience in the other; comfortable switching contexts depending on what the problem needs.
- Cloud-native development on AWS. Serverless, event-driven, Lambda, with an instinct for well designed, maintainable systems.
- A genuine curiosity about where AI is going and the judgment to separate signal from noise when recommending what to adopt.
- An instinct for building responsibly. You care about auditability, compliance, and the downstream impact of what you ship.
Benefits
- Remote-first working across the UK.
- Work abroad policy for when you want a change of scenery.
- Co-working spaces available if you want an office buzz sometimes.
- 34 days holiday (including flexible bank holidays) and your birthday off.
- Company-wide off-sites (yes, karaoke may happen).
- Optional Personal Development Plan.
- Flexible benefits platform: you choose the benefits that matter most to you (not the company).
- Protection essentials, because we know they matter - Life Insurance, Income protection, critical illness cover, Pension (up to 5% matched employer contribution and optional increased contributions).
- Private health- and dental care for your peace of mind.
- Potential share options, have a stake in what you’re building.
- Enhanced family leave.
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