Job Opportunities API

The Joblogic Story Established in 1998,  Joblogic is the UK’s #1 Field Service Management (FSM) software platform. We are a global business with offices in the UK , Pakistan , and Vietnam . Since our management buy-out in 2013, we have grown from ~£500K ARR to ~£35M+ ARR and expanded our team from 11 to 500+ people. Recently, we secured a strategic growth investment from Vista Equity Partners — a global technology investor specialising in enterprise software. This investment includes over £100 million in new primary capital and will fuel our next phase of growth by accelerating our AI-first roadmap , expanding our platform into CAFM (Computer-Aided Facilities Management) capabilities, and supporting our expansion across Europe and beyond. With Vista’s backing, we’re transforming from a successful UK business into a global scaling SaaS rocket ship, and we’d love for you to join us on our journey to £100M ARR across international markets. Joblogic provides software to service contractors who install and maintain the built environment. Our platform helps businesses streamline operations, improve profitability, ensure compliance, and achieve rapid growth. With over 100,000 users across industries including HVAC, plumbing, electrical maintenance, facilities management, and building fabric maintenance, we are entering a new era of intelligent automation, predictive maintenance, and data-driven decision-making for service firms. About the Role   We are building Joblogic’s AI Agent Platform — a multi-tenant system for designing, versioning, evaluating, and running AI agents that work across email, voice, SMS, WhatsApp, and CRM channels on behalf of our customers. The platform is built on a LangGraph runtime with a full agent lifecycle: a prompt-driven agent builder, a tool and knowledge-base registry, human-in-the-loop review, an agent memory subsystem, and a rigorous evaluation harness backed by LangSmith and PromptFoo.   We are looking for a mid-level AI/ML Engineer to help us design, build, and continuously improve these agents. In this role you will own agent behaviour end to end — crafting and engineering prompts, wiring up tools and retrieval, and, most importantly, building the evaluations and datasets that prove an agent is doing the right thing before and after it ships. You will also bring applied machine learning depth: working with our execution and conversation data, building models and analyses that make agents smarter, and using platforms such as Databricks or AWS SageMaker to train, track, and serve them.   You will work closely with product, backend, and platform engineers, and your work will directly shape how tens of thousands of field-service businesses experience intelligent automation.   What You’ll Do   Build and improve AI agents —  design agent behaviour on our LangGraph runtime, configure abilities, attach tools and knowledge bases, and take agents from draft through evaluation to production deployment.   Prompt engineering —  author, version, and systematically improve system prompts (managed via our LangSmith prompt registry), applying techniques such as few-shot examples, structured output, tool-use guidance, and context management to get reliable behaviour from LLMs.   Design and run evaluations —  build datasets, author heuristic and LLM-judge rubrics, run offline evaluations and online scoring against live executions, set pass/fail thresholds, and track quality and regression/drift over time. This is central to the role.   Retrieval & knowledge (RAG) —  build and tune retrieval-augmented generation over our knowledge bases — chunking, embeddings, and hybrid/vector search — to keep agent answers grounded and faithful.   Tools & integrations —  develop and integrate the