The Role
Translate functional AI designs into buildable low-level technical designs through prototypes, proofs of concept, integration testing, and clear documentation. Build and evaluate agentic RAG systems using LangChain, LangGraph, and LangSmith; implement MCP and agent-to-agent integrations; prove authentication, authorization, secrets, and API patterns; and resolve technical questions across distributed development and architecture teams.
Summary Generated by Built In
This is a remote position.
A global consumer goods brand runs a customer-facing AI agent - agentic RAG over its product range - that answers customer questions in natural language. It is already live in couple European markets and is onboarding roughly one new country every month, each with its own language and regulatory nuances. The programme is sponsored at board level and carries high internal visibility.This role exists to close the gap between functional design and buildable design. You take the functional (non-technical) design, resolve as many of the unknowns as you can, and produce a low-level design the development team can build from without rediscovering the same problems. In practice that means writing real prototype code, proving integration patterns end to end, and documenting what works clearly enough for a distributed team to implement it.
WHAT YOU'LL BE DOING
- Turning functional designs into low-level technical designs that development teams can build from directly
- Running spikes and proofs of concept independently - scoping them, building them and reaching a clear conclusion
- Proving integration patterns to surrounding systems end to end: authentication, authorisation, secrets management and API contracts
- Designing and prototyping agent behaviour with LangChain and LangGraph; instrumenting, tracing and evaluating with LangSmith
- Implementing MCP integrations and agent-to-agent communication patterns
- Writing documentation and reference code clear enough for a distributed team to follow without you in the room
- Working alongside the tech lead and architects so that prototype decisions stay consistent with the target architecture
- Driving open questions to resolution across teams - raising the issue, convening the right people and closing the loop
Requirements
- Hands-on experience with LangChain, LangGraph and LangSmith — building, debugging and evaluating agent systems, not just familiarity
- Strong, current Python development skills
- Experience building interfaces to other systems, including authentication, authorisation and secrets management
- Practical experience implementing Model Context Protocol (MCP) integrations
- Experience with agent-to-agent (A2A) integration patterns
- Able to conduct proofs of concept independently, from scoping through to a documented conclusion
- Comfortable working closely with both a development team and solution architects
- Proactive communicator — able to set up meetings, chase answers across teams and resolve blockers without being asked
- Clear technical writing and example code that others can work from
NICE TO HAVE
- Experience with telephony and call centre applications - the platform uses Twilio
- Experience with multilingual or multi-market AI deployments
- RAG evaluation and answer-quality measurement at production scale
- Experience working with distributed teams across time zones
- Exposure to regulated or compliance-sensitive content domains
WHAT SUCCESS LOOKS LIKE
- Development teams start work with fewer open questions and fewer false starts
- Integration patterns are proven once and reused across markets, rather than rediscovered each time
- Low-level designs are specific enough to build from - and are actually used by the teams they were written for
- Technical unknowns surface and get resolved before they become delivery blockers
TECH ENVIRONMENT
Core stack
- Python
- LangChain, LangGraph, LangSmith
- Agentic RAG over product content; multi-language and multi-market
- MCP and agent-to-agent integration
- Authentication, authorisation and secrets management across system boundaries
- Twilio for telephony and call centre channels
- Working context
- Product owner, management and tech lead based in Poland
- English as the working language across the delivery team
Benefits
Skills Required
- Hands-on experience building, debugging, and evaluating agent systems with LangChain, LangGraph, and LangSmith
- Strong current Python development skills
- Experience building system interfaces involving authentication, authorization, and secrets management
- Practical experience implementing Model Context Protocol integrations
- Experience with agent-to-agent integration patterns
- Ability to independently scope, build, and document proofs of concept
- Ability to collaborate with development teams and solution architects
- Proactive communication and cross-team blocker resolution skills
- Clear technical writing and ability to create reusable example code
- Experience with telephony and call center applications, particularly Twilio
- Experience with multilingual or multi-market AI deployments
- Experience with RAG evaluation and answer-quality measurement at production scale
- Experience working with distributed teams across time zones
- Exposure to regulated or compliance-sensitive content domains
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The Company
What We Do
Look4IT is a recruitment agency specializing in providing top-quality recruitment and outsourcing services within the IT sector, focusing on staffing solutions for permanent and contract positions.
