At a Glance
- Tasks: Build AI-powered revenue platforms and create innovative solutions for real customers.
- Company: Join Sequence, a fast-growing tech company revolutionising finance with AI.
- Benefits: Competitive salary, equity options, 25 days holiday plus bank holidays.
- Other info: Dynamic team environment with opportunities for growth and collaboration.
- Why this job: Make a real impact in the AI space while working on cutting-edge technology.
- Qualifications: Experience with LLM-based systems and a passion for building reliable software.
The predicted salary is between 115000 - 130000 £ per year.
About Sequence
If you join Sequence, you'll help build the platform that lets companies get paid—we’re already processing more than £1bn in annual invoice volume and growing fast. We are building an AI‑powered revenue platform for modern finance teams, replacing fragile spreadsheets and legacy systems with software their teams love.
What you’ll be doing
We care deeply about the quality of the product we’re building. We’re looking for engineers who are ambitious and take ownership end‑to‑end: from identifying what to build, through shipping, to making sure it works for real customers. Here’s what you might work on:
- Our AI infrastructure: build and own the platform that allows us to build reliable software on top of non‑deterministic models, including agentic workflows, prompt iteration, tools, and evals.
- AI‑powered approval workflows: build flexible routing that customers configure in natural language—e.g., “require VP approval for deals over £100k with annual terms”—and turn that into deterministic, auditable business logic.
- An intelligent collections agent: build an agent you instruct in natural language—e.g., “send a reminder at 7 days overdue; escalate at 14 days” – which then runs the entire workflow and collects relevant context autonomously.
You should apply if
- You’ve shipped LLM‑based systems to real customers and have first‑hand experience with how they fail in production.
- You’ve designed agentic systems and have informed views on the building blocks (embeddings, memory, tool use, long‑running state, recovery from partial failures) and when to reach for each.
- You’ve built evals infrastructure (datasets, LLM as judge, prompt regression tests, monitoring) and have a clear view of what good looks like.
- You respect the weight of building business‑critical systems on top of non‑deterministic models and are comfortable writing resilient software.
- You have informed opinions about the tooling for building, evaluating, and securely running multi‑provider AI systems in production.
- You’ve shipped production backend systems and care about the difference between “it works” and “it’s reliable”.
- You care about customers—you want to understand why you’re building something, not just what.
- You’re comfortable with ambiguity, thrive in early ideation stages, share work‑in‑progress to gather feedback, and adapt easily based on input.
- You communicate clearly; thoughtful communication is a superpower that sharpens how we collaborate and build.
Tech stack
- Backend: Kotlin (modular monolith using Http4k, Spring Boot, Exposed, Result4k)
- Storage: Postgres, BigQuery
- AI Platform: VertexAI, Langsmith, and more
- Async messaging: Google Cloud Pub/Sub
- Infrastructure: Google Cloud, Terraform
- Frontend: TypeScript, React
- Monitoring: GoogleCloudMonitoring, Sentry
- Tools: GitHub, Slack, Notion, Linear
What we offer
- Salary: £115,000–£130,000
- Equity: Meaningful share options
- Holiday: 25 days holiday + bank holidays
AI Engineer - London employer: Sequence (sequencehq)
At Sequence, we pride ourselves on fostering a dynamic and innovative work culture that empowers our employees to take ownership of their projects and drive meaningful change. As an AI Engineer in London, you'll not only contribute to cutting-edge technology but also enjoy competitive salaries, equity options, and generous holiday allowances, all while being part of a team that values collaboration and personal growth.
StudySmarter Expert Advice🤫
We think this is how you could land AI Engineer - London
✨Tip Number 1
Network like a pro! Reach out to folks in the industry, attend meetups, and connect with people on LinkedIn. You never know who might have the inside scoop on job openings or can refer you directly.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your AI projects, especially those involving LLMs and agentic systems. 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 scenarios related to AI engineering. Be ready to discuss your past experiences and how you've tackled challenges in production environments.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who are proactive about their job search!
We think you need these skills to ace AI Engineer - London
Some tips for your application 🫡
Tailor Your CV:Make sure your CV reflects the skills and experiences that match the job description. Highlight your experience with LLM-based systems and any relevant projects you've worked on. We want to see how you can contribute to our AI-powered revenue platform!
Craft a Compelling Cover Letter:Your cover letter is your chance to show us your personality and passion for the role. Explain why you're excited about building AI infrastructure and how your background aligns with our mission. Let us know why you want to join Sequence!
Showcase Your Projects:If you've built any relevant projects, especially those involving agentic systems or AI workflows, make sure to include them in your application. 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 the role. Plus, it shows us you’re keen to be part of our team!
How to prepare for a job interview at Sequence (sequencehq)
✨Know Your AI Stuff
Make sure you brush up on your knowledge of LLM-based systems and agentic workflows. Be ready to discuss your past experiences with these technologies, especially how you've tackled failures in production. This will show that you understand the complexities of building reliable AI systems.
✨Show Your Problem-Solving Skills
Prepare to share specific examples of how you've designed and built resilient software. Think about challenges you've faced and how you overcame them, particularly in relation to non-deterministic models. This will demonstrate your ability to think critically and adapt in ambiguous situations.
✨Communicate Clearly
Since thoughtful communication is key, practice explaining complex concepts in simple terms. You might be asked to describe your work-in-progress or gather feedback during the interview, so being articulate will help you stand out as a collaborative team player.
✨Understand the Customer's Perspective
Be prepared to discuss why you're passionate about building products that truly serve customers. Show that you care about understanding their needs and how your work impacts their experience. This mindset aligns perfectly with what Sequence values in their engineers.
