HartleyCo

About the Company

Founded in 2019, HartleyCo is a boutique Recruitment Firm who solely focus on placing highly skilled technology professionals, into Permanent & Contractor opportunities across Hampshire, Surrey, Berkshire and London.

Simply put, HartleyCo are trusted advisors who provide great recruitment experiences. We're not trying to reinvent the wheel. We listen, advise then action.

What you'll find partnering with HartleyCo, will be a series of enjoyable experiences coupled with human conversation & delivery.

If you'd like to explore working together let's talk, edwardth@hartleyco.co.uk or 01252 974400

Listed Jobs

Company Name

HartleyCo

Job Title

Senior Software Engineer

Job Description

**Job Title:** Senior Software Engineer **Role Summary:** Lead product development and technical strategy for a fast-paced startup, focusing on scaling solutions and shaping engineering culture. **Expectations:** Commercial proficiency in Python and TypeScript; experience with modern frontend frameworks (React/Next.js); ownership of technical decisions in agile, early-stage environments. **Key Responsibilities:** - Collaborate with founders to design and scale product architecture. - Own end-to-end development of customer-facing features. - Define and maintain engineering standards and technical direction. **Required Skills:** - Expertise in Python and TypeScript. - Strong frontend development experience with React/Next.js or equivalent. - Proven ability to deliver in high-growth, startup environments. **Required Education & Certifications:** Not specified.

London, United kingdom

Hybrid

Senior

17-12-2025

Company Name

HartleyCo

Job Title

Artificial Intelligence Engineer

Job Description

Job title: Artificial Intelligence Engineer Role Summary: Design, build, and ship production‑scale AI agents and LLM‑driven workflows that automate insurance claim processing. Own end‑to‑end AI architecture, collaborate directly with founders and insurance subject‑matter experts, and shape the organization’s AI/ML culture from day one. Expactations: Must deliver production AI agents (not research projects); possess full‑stack proficiency (Python backend and JavaScript/Next.js frontend); hold deep fundamentals and have proven experience at Series‑B/C/D AI companies (e.g., PolyAI, Wayve, Synthesia) or at a major tech firm. Thrive in fast‑paced, high‑intensity settings and seek ownership beyond ticket completion. Key Responsibilities: - Design and implement LLM‑based agents that process real insurance claims at scale. - Own AI architecture decisions, from data ingestion to model deployment. - Collaborate with founders, insurance specialists, and product teams to solve complex automation challenges. - Build and maintain end‑to‑end AI pipelines using LangChain and related tools. - Develop frontend components (Next.js, Node.js) to expose AI capabilities to end users. - Ensure production reliability, scalability, and performance on GCP. - Mentor junior engineers and cultivate a strong AI/ML engineering practice. Required Skills: - Strong Python programming for AI/ML development. - Experience with LLMs, LangChain, and workflow orchestration. - Full‑stack development: JavaScript/TypeScript, Next.js, Node.js. - Cloud proficiency (Google Cloud Platform). - Design of production‑grade AI systems (CI/CD, monitoring, logging). - Excellent communication and collaboration in cross‑functional teams. Required Education & Certifications: - Bachelor’s or Master’s degree in Computer Science, Engineering, or related field (or equivalent experience). - No mandatory certifications required.

London, United kingdom

On site

23-01-2026

Company Name

HartleyCo

Job Title

Contract Software Engineer

Job Description

Job Title: Contract Software Engineer Role Summary: Deliver end‑to‑end TypeScript solutions on a telemedicine and clinical operations platform, bridging frontend, backend, and data layers to achieve MVP within a tight schedule. Expectations: Complete core feature development, meet sprint goals, and support code quality standards across a regulated healthcare domain. Key Responsibilities: - Design and implement responsive React components for patient/video‑consultation interfaces. - Build and maintain robust Node.js (TypeScript) APIs for clinical workflow automation. - Model data structures and optimize queries in PostgreSQL, ensuring data integrity and compliance. - Integrate third‑party services (video SDKs, AI modules) into the platform. - Write unit, integration, and end‑to‑end tests; perform code reviews and maintain CI/CD pipelines. - Collaborate closely with product, design, and compliance teams to deliver regulatory‑ready features. Required Skills: - Proven experience in full‑stack TypeScript development (React & Node.js). - Strong database proficiency with PostgreSQL (schema design, migrations, performance tuning). - Familiarity with video‑conferencing APIs and real‑time communication patterns. - Clean‑code practices, unit/integration testing, and CI/CD deployment (GitHub Actions/DevOps). - Excellent problem‑solving, communication, and teamwork in an agile environment. Required Education & Certifications: - Bachelor’s degree or equivalent in Computer Science, Software Engineering, or related field. - Experience or certification in regulatory compliance (e.g., GDPR, ISO/IEC 27001) preferred, especially in healthcare contexts.

United kingdom

Remote

26-01-2026