Join a high-performance team building the future of software development as Rezonant exits private beta. You will design, conceptualize, and build an agent-native platform from the ground up, integrating AI into agile workflows. This role offers the chance to shape both technical architecture and product culture at the earliest stage of growth.
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London, United KingdomNot Disclosed
Software Engineer at Rezonant - Agent-native SDLC platform
Join Rezonant, a fast-growing startup helping companies accelerate their software development lifecycle through agent-native workflows. As they exit private beta, you'll have the unique opportunity to shape the product from the ground up, working with a cutting-edge stack including Python, Temporal, and the latest LLM frameworks. If you are an AI-native engineer who thrives on ambiguity and wants to redefine how software is built, this is the perfect time to join their high-performance team in London.
Overview
Role overview
Company
Rezonant
Software1-10 employeesLondon, United KingdomSeed (VC-backed)
Rezonant - Agent-native SDLC startup
Backed by General Catalyst, First Minute Capital, Stem AI.
Responsibilities
What you will do
- Design and build the product from the ground up using a modern stack including Python, React, Next.js, and Temporal.
- Lead cross-disciplinary engineering efforts with full autonomy to validate, gather feedback, and iterate based on direct customer interactions.
- Architect elegant, simple solutions for complex technical challenges while maintaining high velocity using AI-native development practices.
Candidate profile
Who this is a fit for
- Possesses at least 2+ years of professional software engineering experience with a degree in CS, Engineering, AI, or a related field.
- Demonstrates deep proficiency with LLM tools and agent frameworks such as Langsmith, RAG, and prompt engineering to accelerate development.
- Exhibits a strong product mindset with the ability to create beautiful user experiences and a philosophical belief in AI-accelerated SDLC.
What makes it remarkable
Why this role is remarkable
- Shape a product exiting private beta that is fundamentally reimagining the software development lifecycle through agent-native intelligence.
- Thrive in a high-performance culture where bottom-up innovation is encouraged and rapid execution is used to solve complex, ambiguous problems.
- Work at the cutting edge of AI, using tools like Langgraph and Temporal to build systems that automate traditional engineering processes.
Jack & Jill
How Jack & Jill work together
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Meet Jack
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