Senior Fullstack Engineer ( 110k- 130k) at Midnite

Senior Fullstack Engineer - Nucleus

Join a greenfield team building Midnite's internal back-office platform from the ground up. As a player-manager, you will lead three engineers while remaining hands-on with Python and Vue. You will drive AI experimentation, leveraging LLMs and RAG to automate engineering workflows and enhance operational efficiency across this high-growth, Series C startup.

Salary: £110k-£130k

Location: Remote, UK

Why This Role Is Remarkable

• Lead a brand new "Nucleus" team with full autonomy to shape the internal platform and define engineering standards for the entire organization.
• Work for a well-funded Series C company that has raised over $75M from prestigious investors like The Raine Group, ensuring stability and scale.
• Drive the practical application of AI, moving beyond chatbots to productionize LLM-powered tools that directly improve developer experience and business operations.

What You Will Do

• Design and maintain the backend systems and operational dashboards that power Midnite's internal platform using Python, Flask, and AWS.
• Lead and mentor a team of three engineers, managing sprint planning, professional development, and technical direction as a player-manager.
• Prototype and ship AI-powered improvements such as automated code review tooling, intelligent alerting, and internal assistants for non-technical teams.

The Ideal Candidate

• 7+ years of backend engineering experience with strong proficiency in Python and a high bar for software architecture and engineering standards.
• Proven experience leading or mentoring engineers in a hands-on capacity while successfully delivering complex technical projects in a production environment.
• Practical experience integrating LLMs and AI APIs into real products, with a curiosity for emerging frameworks like LangChain, LlamaIndex, or RAG pipelines.