At a Glance
- Tasks: Develop AI-native software and optimise complex data systems for tax advisory teams.
- Company: Revax, a dynamic seed-stage startup revolutionising tax advisory with AI.
- Benefits: £80k base salary, EMI equity, and visa sponsorship available.
- Other info: Collaborate directly with founders in a supportive, innovative environment.
- Why this job: Join a fast-paced team and make a real impact from day one.
- Qualifications: 2-3 years of software development experience and a passion for AI technologies.
The predicted salary is between 80000 - 80000 € per year.
Revax is building a new class of AI-native software for tax advisory teams. Today, advisers lose entire days to researching and drafting advice - fragmented knowledge, manual workflows, and brittle tooling. We turn a firm's own expertise into structured, transparent AI systems that draft, analyse, and explain deliverables with full traceability.
We're a seed-stage startup backed by leading institutions and angels, already working with major firms. The team is small, technical, and shipping fast.
We're hiring a Software Engineer to help scale Revax. You will work directly with the founders, owning features end-to-end across the stack, and helping to define how AI systems are built responsibly in regulated domains. Customer calls, prototyping, production hardening, and the work that lets us sell into leading firms - all of it is in scope.
If you enjoy designing clean APIs, scaling services, and shipping products to paying enterprise customers, this role is for you.
What you'll do
- Model and optimise PostgreSQL / Supabase & graph db / Neo4j schemas for complex data
- Design and implement APIs in FastAPI for AI workflows and product features
- Build and scale LangGraph-based multi-agent systems with checkpointing, retries, and observability
- Integrate vector search, knowledge graphs, and retrieval pipelines into production services
- Deploy services on GCP (Cloud Run / GKE) and improve performance, reliability, and cost
- Implement the auth, IAM, audit, and access-control patterns enterprise customers expect
- Help deploy SSO, tenant isolation, auditability, and the security reviews that come with selling to major firms
- Work with customers, other engineers, and the founders to create best in class software
Who we're looking for
Essential
- 2–3 years building production software used by real users
- Experience working in startups (1 year + of total experience)
- Experience with LangGraph, RAG pipelines, vector databases, or knowledge graphs
- Production experience with FastAPI or a similar modern Python framework
- Experience scaling and operating services on GCP, AWS, or Azure
- A high-ownership mindset - you care about reliability, correctness, and outcomes, not lines of code
- Heavy use of modern AI coding tools (Cursor, Claude Code, Codex)
Strong plus
- Experience with any of; multi-tenant deployments for enterprise customers, VPC networking, Kubernetes, or shipping into procurement-heavy regulated buyers.
- Exposure to Neo4j or graph-based data modelling
- Time spent on AI-native or agentic systems in production
Nice to have
- Exposure to professional services, finance, tax, or other regulated domains
- Strong instincts for developer experience and internal tooling
The package
- £80k base + meaningful EMI equity
- London-based, with a strong preference for in-office
- Visa sponsorship available
- Modern stack, and driven team that you can get have an impact in from day 1.
If this sounds like you, please apply.
Software Engineer (AI Platform) - London employer: LinkedIn
Revax is an exceptional employer for Software Engineers, offering a dynamic startup environment in London where innovation meets impact. With a competitive salary of £80k and meaningful EMI equity, employees are empowered to take ownership of their work while collaborating closely with founders and major firms. The culture fosters growth through hands-on experience in cutting-edge AI technology, ensuring that every team member contributes to shaping the future of tax advisory software.
StudySmarter Expert Advice🤫
We think this is how you could land Software Engineer (AI Platform) - London
✨Tip Number 1
Network like a pro! Reach out to people in the industry, especially those at startups or in AI. Use LinkedIn to connect and don’t be shy about asking for informational chats. You never know who might have a lead on your dream job!
✨Tip Number 2
Show off your skills! Create a portfolio or GitHub repository showcasing your projects, especially those related to AI and software engineering. This gives potential employers a taste of what you can do and sets you apart from the crowd.
✨Tip Number 3
Prepare for interviews by practising common technical questions and coding challenges. Use platforms like LeetCode or HackerRank to sharpen your skills. Remember, it’s not just about answering questions; it’s about demonstrating your thought process!
✨Tip Number 4
Apply through our website! We love seeing candidates who are genuinely interested in joining us at Revax. Tailor your application to highlight how your experience aligns with our mission of building AI-native software for tax advisory teams.
We think you need these skills to ace Software Engineer (AI Platform) - London
Some tips for your application 🫡
Tailor Your CV:Make sure your CV is tailored to the Software Engineer role at Revax. Highlight your experience with AI systems, FastAPI, and any relevant projects that showcase your skills in building production software.
Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you're excited about working at Revax and how your background aligns with their mission of creating AI-native software for tax advisory teams.
Showcase Your Projects:If you've worked on any projects involving LangGraph, vector databases, or cloud services, make sure to mention them. We love seeing real-world applications of your skills, so don’t hold back!
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for this exciting opportunity at Revax!
How to prepare for a job interview at LinkedIn
✨Know Your Tech Stack
Make sure you’re well-versed in the technologies mentioned in the job description, like FastAPI, PostgreSQL, and GCP. Brush up on your experience with these tools and be ready to discuss specific projects where you’ve used them.
✨Showcase Your Problem-Solving Skills
Revax is looking for someone who can tackle complex problems. Prepare examples of challenges you've faced in previous roles, especially in a startup environment, and how you approached solving them. This will demonstrate your high-ownership mindset.
✨Understand AI Workflows
Since the role involves building AI systems, it’s crucial to have a solid understanding of AI workflows and concepts like LangGraph and vector databases. Be prepared to discuss how you would integrate these into production services.
✨Ask Insightful Questions
Interviews are a two-way street! Prepare thoughtful questions about Revax's vision, the team dynamics, and how they approach building software responsibly in regulated domains. This shows your genuine interest in the company and the role.
