cover image
Atarus

Software Engineer - GenAI

Hybrid

London, United kingdom

Mid level

Full Time

02-03-2026

Share this job:

Skills

Python TypeScript MySQL PostgreSQL GitHub CI/CD DevOps Docker Test Decision-making Ubuntu Programming Databases react AWS GCP Terraform GitHub Actions NLP

Job Specifications

Software Engineer – AI - London / Hybrid (UK-based)

A high-growth, FinTech company is building intelligent, data-driven products to support businesses and consumers at scale across the UK and US. The organisation operates cloud-native platforms used by a large and diverse customer base and is continuing to invest heavily in AI-enabled capabilities across its core products.

The Role

This role sits within a product-led engineering team focused on applying AI and Generative AI to real-world business problems. You’ll work on large-scale systems where impact is measured by outcomes, not output.

You will:

Design and engineer large-scale, production-grade systems (5+ years’ experience)
Focus on business impact rather than lines of code
Embrace DevOps culture: you build it, you run it
Work effectively in cross-functional, autonomous teams
Mentor other engineers and help raise the bar across the team
Prefer simple, pragmatic solutions over unnecessary complexity
Stay effective and organised in fast-moving, ambiguous environments
Think broadly about how technical decisions affect the wider business
Leverage Generative AI tools to improve productivity and decision-making

Nice-to-Have Skills

Experience building AI or LLM-powered applications
Knowledge of NLP or intelligent document processing
Familiarity with vector databases (e.g. Pinecone, Weaviate)
Experience with search platforms (e.g. OpenSearch, Elasticsearch)
Exposure to agentic workflows or orchestration frameworks
Awareness of MCP (Model Context Protocol)

Technology

The team is pragmatic and cloud-native. Current tooling includes:

Languages: Python, TypeScript
Datastores: PostgreSQL, BigQuery, MySQL
Frontend: React, styled-components
Testing: Jest, React Testing Library, Cypress, pytest
Cloud: AWS, GCP
Infrastructure: Docker, ECS Fargate, Terraform
CI/CD: GitHub Actions

How You’ll Work

Collaborate: Pair programming and mission-driven squads
Outcome-focused: Solve real user problems tied to business results
Continuously improve: Fast feedback, learning-first mindset
User-centric: Decisions driven by data and direct user insight
Continuous deployment: Automated, secure, resilient delivery
Test-first: Outside-in testing with behaviour-focused scenarios
End-to-end ownership: Lead features from idea to production
Cloud-native: Automation-first, security by design

Team & Culture

You’ll be part of an inclusive engineering culture that values:

Diverse perspectives and open discussion
Psychological safety and trust
Low-ego collaboration
Teams that are engaged, motivated, and genuinely enjoy working together

What’s on Offer

Hybrid working: Flexible, trust-based approach with optional in-person collaboration
Work–life balance: 25 days holiday + bank holidays, enhanced family leave
Compensation: Competitive salary plus equity
Equipment: High-spec laptop (macOS or Ubuntu)
Socials: Regular team and company events
Benefits: Cycle-to-work scheme and EV support

About the Company

Atarus is a specialist talent partner for businesses looking to scale high-performing engineering teams. With over a decade of experience in building technical teams, our consultants have previously partnered with companies such as Trainline, Sky, ASOS, NatWest, Global Relay, OVO Energy, and many more. We help organisations lay the foundations for sustainable growth by placing proven talent across DevOps & SRE, Software Engineering, QA, Product, Data, and AI. If you're looking to scale your engineering teams with precisio... Know more