Agent Systems Engineer

adaption; Dublin; Hybrid; EUR 110,000 - 140,000; Full time

Benefits offered by this job

Flexible work

Travel stipend

Lunch stipend

Medical benefits

Generous PTO

Job summary

Adaption seeks engineers to build agent systems at the core of our product. You will turn customer goals into reliable, multi-step execution across real tools and services, operating under real constraints such as incomplete information and external failures.

You will own how agents plan, use tools, recover from errors, and improve over time, developing evaluation systems and traces to ensure reproducibility and reliability across complex workflows.

Qualifications

• 5+ years building production ML or backend systems.
• Strong understanding of agent design: planning, reasoning, tool use, orchestration, and memory.
• Experience with evaluation systems, tracing and observability.

Responsibilities

• Design agent architectures for planning, reasoning, tool use, memory, and external data integration.
• Improve reliability on long-running, multi-step tasks, including failure recovery.
• Build loops for agent improvement with real use and performance compounding.
• Develop evaluations to measure agent performance and resist gaming.
• Make practical tradeoffs between quality, latency, cost, and complexity.

Skills

Production ML

Backend systems

LLM integration

Observability

Tool orchestration

Planning & reasoning

Execution tracing

OpenAI API

Reproducibility

Tools

OpenAI Responses API

MCP

Server-side execution

Job description

The Role

You'll build the agent systems at the core of our product. These systems turn customer goals into reliable, multi-step execution across real tools and services.

This is not about building demos. You'll work on agents that operate under real constraints: incomplete information, external failures, limited budgets, and unpredictable traffic. You'll own how they plan, use tools, recover from errors, and improve over time.

Responsibilities

• Design agent architectures for planning, reasoning, tool use, memory, and integration with external systems and data.


• Improve reliability on long-running, multi-step tasks, including failure recovery.


• Build the loops that let agents improve with real use, so performance compounds instead of staying frozen.


• Develop evaluations that measure agent performance and resist being gamed.


• Make practical tradeoffs between quality, latency, cost, and complexity.

Qualifications

• 5+ years building production ML or backend systems, including taking LLM or agent applications from prototype to production.


• Strong understanding of agent design: planning, reasoning, tool use, orchestration, and memory.


• Experience building rigorous evaluation systems, plus execution tracing and observability for agents, with a focus on reproducibility.


• Familiarity with the OpenAI Responses API, MCP, and server- versus client-side execution.

Above all, we're looking for great teammates who make work feel lighter and aren't afraid to go out on a limb with bold ideas. You don't need to be perfect, but you do need to be adaptable.

About Us

Most AI is frozen in place - it doesn't adapt to the world. We think that's backwards. Our mandate is to build efficient intelligence that evolves in real-time. Our vision is AI systems that are flexible, personalized, and accessible to everyone. We believe efficiency is what makes this possible - it's how we expand access and ensure innovation benefits the many, not the few. We believe in talent density: bringing together the best and most driven individuals to push the boundaries of continual adaptation. We're looking for builders and creative thinkers ready to shape the next era of intelligence.

Benefits

• Flexible work: In-person collaboration in the Bay Area, a distributed global-first team, and team offsites.


• Adaption Passport: Annual travel stipend to explore a country you've never visited. We're building intelligence that evolves alongside you, so we encourage you to keep expanding your horizons.


• Lunch Stipend: Weekly meal allowance for take-out or grocery delivery.


• Well-Being: Comprehensive medical benefits and generous paid time off.