Senior Software Engineer, Agents

Team: IT

Location: UK

Commitment: Full-time

Workplace Type: remote

Accountabilities

• Design and build the core infrastructure powering AI agent capabilities, including orchestration, tool execution, context management, evaluation systems, and trust frameworks.
• Develop reliable, secure, and observable backend systems that enable AI assistants to interact with data, applications, and developer workflows.
• Create and improve agent-based features that help users analyze information, understand performance, troubleshoot issues, and make better decisions.
• Build systems around large language models, including tool usage, structured outputs, context handling, evaluation processes, and agent workflows.
• Collaborate with engineering teams to define architecture, identify technical challenges, and establish scalable solutions for an evolving AI platform.
• Improve system reliability, performance, and usability by identifying gaps, investigating issues, and implementing meaningful improvements.
• Contribute to technical discussions, code reviews, architecture decisions, and engineering best practices.
• Take ownership of projects from concept to delivery while working independently in a fast-moving product environment.
• Support knowledge sharing and mentor other engineers as the team and platform continue to grow.

Requirements

• 5+ years of experience building and shipping production software systems.
• Hands-on experience developing applications with large language models, beyond basic prompting, including agent workflows, tool integration, structured outputs, context management, orchestration, or evaluation.
• Strong backend engineering fundamentals with experience designing reliable, scalable, secure, and observable systems.
• Ability to work effectively in ambiguous environments where architecture and product direction are continuously evolving.
• Self-driven approach with the ability to identify opportunities, define solutions, and deliver projects independently.
• Strong communication and collaboration skills, especially within remote and distributed engineering teams.
• Experience with AI platforms and tools such as OpenAI or Anthropic APIs is a plus.
• Previous experience building AI agents, conversational interfaces, Slack integrations, or developer-focused tools is advantageous.
• Familiarity with evaluation and observability frameworks such as Langfuse or LangChain is a plus.
• Knowledge of subscription business models, mobile applications, app stores, or developer platforms is beneficial.
• Contributions to open-source AI or machine learning projects are considered an advantage.

Benefits

• Fully remote and flexible working environment.
• Competitive compensation package with equity opportunities.
• Long-term equity support with an extended exercise window for vested options.
• 4–5 weeks of recommended annual time off to support mental, physical, and emotional well-being.
• Workspace setup budget to help create an effective remote working environment.
• Annual learning and development budget to support continuous growth.
• Opportunity to work on cutting-edge AI technology with significant product impact.
• Collaborative international engineering culture with experienced technical teams.
• Opportunity to shape AI-native products and influence the future of intelligent developer tools.