Overview

We are rebuilding the energy transaction, making it transparent and fair. [Employer hidden — sign up to reveal] has built the first AI-native transaction infrastructure for electricity. We are looking for a Senior Staff Software Engineer to help shape and scale our Agentic layer.

Responsibilities

• Ship flagship agentic capabilities end-to-end.
• Build and operate production-grade agent systems with reliable, predictable behavior.
• Create shared foundations for agent delivery (runtime patterns, tool interfaces, context management).
• Establish a pragmatic Agent Development Life Cycle (ADLC) with evaluations, guardrails, tracing, monitoring.
• Integrate ML and LLM components into production workflows.
• Maintain clear domain boundaries as adoption scales.
• Collaborate with Platform on infrastructure and developer tooling.

Requirements

Must-Haves:

• Architectural depth in complex distributed systems, APIs, event-driven architectures, and agentic applications.
• Proven experience building AI agents in production with frameworks like LangGraph and LangChain.
• Deep experience with AWS serverless architecture (Lambda, API Gateway, EventBridge, Step Functions).
• Strong coding skills with Python as a must-have.
• Agent quality discipline with evaluations, regression testing, safety guardrails, and monitoring.
• Strong backend and distributed-systems fundamentals.
• Product and business alignment.
• First-principles problem solving.

Desirable:

• Experience building internal paved paths for agent development.
• Practical experience with retrieval systems (vector databases, semantic search).
• Exposure to model operations.
• Experience in regulated or high-correctness domains.
• Familiarity with workflow orchestration and real-time systems.

Benefits and Perks

• Competitive salary of £129,500.
• Stock options.
• 25 days holiday plus public holidays and birthday off.
• Remote and flexible working.
• Home working and wellbeing budgets up to £1,200 annually and £150 monthly.