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

AI Platform Engineer

Job Description

Job Title: AI Platform Engineer Role Summary: Design, develop, and maintain high‑performance AI infrastructure that powers a proprietary context engineering platform. Build scalable pipelines, evaluation systems, voice AI, and payment integrations to support rapid product shipping. Expactations: - Deliver production‑grade ML and data systems at a fast pace - Own end‑to‑end feature development from concept to deployment - Collaborate closely with founding and forward‑deployed engineers - Iterate quickly, prioritize shipping over documentation Key Responsibilities: - Enhance the AI Grid platform with ETL pipelines and LLM orchestration - Build and maintain human‑annotated evaluation frameworks for SFT/RL fine‑tuning - Develop ML models for reasoning, load balancing, and market‑making engines - Architect data pipelines feeding vector databases, ML platforms, and analytics stacks - Implement MCP servers to connect agents to tools and persistent memory - Design voice AI systems for outbound, follow‑up, and customer service use cases - Integrate payment providers and financial systems into the platform - Ensure systems are robust, scalable, and meet real‑time processing requirements Required Skills: - Deep experience with distributed systems, AI agents, and modern data engineering - Proficiency in TypeScript/Node.js and Python for production code - Proven track record building ML infrastructure, ETL/ELT pipelines, and orchestration frameworks (Temporal.io, Airflow, Astronomer) - Expertise with MCP protocols, vector databases, and retrieval‑augmented generation - Knowledge of voice AI architecture and real‑time processing - Familiarity with payment integrations and financial system APIs - Strong command of databases (PostgreSQL, ClickHouse, Redis Streams) and cloud data services (Databricks, etc.) - Ability to ship fast, iterate, and drive continuous improvement Required Education & Certifications: - Bachelor’s degree in Computer Science, Engineering, or a related technical field (advanced degrees preferred) - Certifications in distributed systems, cloud architecture, or ML engineering are a plus.

San francisco bay, United states

On site

05-10-2025

Company Name

HartleyCo

Job Title

Frontend Developer

Job Description

**Job Title:** Frontend Developer **Role Summary:** Develop and ship new, customer‑facing features for a high‑traffic SaaS product using modern frontend technologies. Collaborate with cross‑functional teams in an Agile environment to deliver responsive, accessible user interfaces and support product roadmap initiatives. **Expectations:** - Minimum 2 years of commercial experience building applications with React. - Proficiency in TypeScript and responsive, WCAG‑compliant design. - Ability to write automated tests (component and end‑to‑end). - Strong communication and teamwork skills. - Commitment to fast iteration cycles within Scrum/Agile processes. **Key Responsibilities:** - Implement new features using React, TypeScript, and Tailwind CSS. - Translate design specifications into fully responsive, accessible UI components. - Develop and maintain end‑to‑end and component test suites (e.g., Playwright). - Collaborate with backend engineers, product managers, and designers to refine requirements. - Support marketing initiatives by updating and enhancing website content. - Participate in sprint planning, daily stand‑ups, and retrospectives. **Required Skills:** - React (hooks, context, routing) – 2+ years. - TypeScript – strong typing and tooling. - Responsive design principles and WCAG accessibility standards. - Modern CSS frameworks, preferably Tailwind CSS. - Automated testing frameworks (Playwright or similar). - Version control with Git. - Agile/Scrum workflow familiarity. - Excellent verbal and written communication. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience). - No specific certifications required; relevant professional training or coursework is a plus.

Basingstoke, United kingdom

Hybrid

Junior

17-10-2025