Owen Thomas

About the Company

Hey, we are Owen Thomas. We are a relationship first recruitment partner for Data, Product & Engineering, across Contract and Permanent roles in the UK & Europe.

Humanness matters. We believe that empathy is the core of great recruitment; bringing opportunity and businesses to life, beyond what a person can see on a website.

All done with our OT personal touch.

Our mission: To be leaders within our specialisms and create unrivalled opportunities both internally and externally.

We balance purpose and profit. Actively investing a proportion of our profits into projects that positively influence; diversity in tech & the climate crisis.

We do not claim to change the world, but we will do our very best to leave it in a better place than we found it.

Listed Jobs

Company Name

Owen Thomas

Job Title

Founding Backend AI Engineer | Python, TypeScript, LLMs, RAG | Seed-Funded B2B SaaS | £100,000 - £140,000 + Early Stage Equity | London, Hybrid (3-4 days PW) | Can Sponsor + Relocate

Job Description

**Job Title:** Founding Backend AI Engineer **Role Summary:** Architect and deliver production‑grade AI functionalities for a seed‑funded B2B SaaS platform. Work closely with the CTO and founding engineers to design data‑driven workflows, build scalable backend services, and integrate large language models (LLMs) into customer‑facing products. **Expectations:** - Operate with high ownership and autonomy in a fast‑moving startup environment. - Communicate technical decisions clearly to both engineering and product teams. - Contribute to technical strategy, tooling, and long‑term AI roadmap. - Deliver reliable, performant solutions that meet real‑world customer needs. **Key Responsibilities:** - Design and implement AI‑powered pipelines for processing unstructured and semi‑structured data. - Build intelligent document extraction, matching, and retrieval systems using embeddings and vector search. - Develop scalable backend APIs and services in Python (and optionally TypeScript). - Productionise LLM‑driven features, ensuring robustness, monitoring, and observability. - Collaborate with the founding team on architecture, model selection, and product direction. - Maintain cloud infrastructure (AWS/GCP/Azure) supporting AI workloads. **Required Skills:** - Strong backend engineering experience, primarily Python; familiarity with TypeScript a plus. - Hands‑on experience deploying LLMs, NLP, or applied machine learning in production. - Proficiency in building data pipelines, distributed systems, and large‑scale processing. - Cloud platform expertise (AWS, GCP, or Azure) including CI/CD and containerisation. - Excellent problem‑solving, communication, and product‑mindset. - Ability to thrive in high‑ownership, rapid‑iteration environments. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Engineering, Mathematics, or a related technical field (Master’s preferred but not mandatory). - Relevant certifications (e.g., AWS Certified Solutions Architect, GCP Professional Data Engineer) are a plus but not required.

London, United kingdom

Hybrid

09-11-2025

Company Name

Owen Thomas

Job Title

Engineering Manager, Machine Learning, Marketplace, Ecommerce, | 35 Million Users | UK Remote OR London, Hybrid, 1 Day PW, Up to £140,000

Job Description

Job Title: Engineering Manager, Machine Learning Role Summary: Lead machine learning team to design and deploy scalable search/recommendation systems, enhancing user engagement, conversion, and product discovery for a global e-commerce platform. Collaborate with cross-functional teams to execute ML strategy. Expectations: Deliver high-impact ML solutions for search relevance, personalization, and multimodal retrieval; optimize search infrastructure; drive innovation in NLP/CV; champion responsible AI practices. Key Responsibilities: - Manage ML Scientists, fostering collaboration, experimentation, and talent development. - Define ML roadmap for search/recommendations, aligning with business goals. - Oversee end-to-end model lifecycle: data strategy, training, deployment, and performance monitoring. - Partner with MLOps to implement efficient CI/CD, feature management, and model scaling. - Share technical insights across teams, promoting best practices in ML engineering and multimodal learning. - Translate research into production systems, ensuring explainability and ethical AI adoption. Required Skills: - 7+ years applied ML experience with production-scale model deployment. - 2+ years leading ML teams. - Search/recommendation systems expertise (semantic embeddings, learning-to-rank, personalization). - Python, Spark, PyTorch/TensorFlow. - A/B testing, metrics analysis, and experimental design. - AWS, Databricks, and OpenSearch/Elasticsearch. - Cross-functional communication and stakeholder alignment. Required Education & Certifications: Bachelor's or Master's in Computer Science, Data Science, or related field.

London, United kingdom

On site

Senior

10-11-2025

Company Name

Owen Thomas

Job Title

Backend Engineer, Java, Kotlin, AWS | Fintech, Payments Platform (B2B) | Leeds, Hybrid (2 days per week) | Salary Up to £65,000+ Bonus & Benefits

Job Description

**Job Title:** Backend Engineer – Java & Kotlin, AWS **Role Summary:** Build and maintain scalable backend services for a fast‑growing B2B payments platform. Work with cloud‑native AWS technologies, Kubernetes, and modern API patterns to deliver reliable, high‑performance components that support customer‑facing features and third‑party integrations. **Expactations:** - Deliver mid‑level features from design to production while ensuring code quality and system stability. - Mentor junior engineers and contribute to a culture of continuous improvement. - Collaborate closely with product, analysis, and cross‑functional teams to translate business needs into technical solutions. **Key Responsibilities:** - Design, develop, and maintain backend services supporting the payments platform and integrations. - Write clean, maintainable code and enforce team standards and best practices. - Create and maintain unit and integration tests to ensure high reliability. - Improve automation, testing frameworks, and CI/CD pipelines. - Participate in architecture and technical discussions, proposing system design enhancements. - Mentor junior team members and share knowledge through code reviews and retrospectives. - Stay updated on industry trends, tools, and emerging technologies relevant to backend development. **Required Skills:** - Proficiency in Java and Kotlin; experience with TypeScript is a plus. - Hands‑on experience with AWS services (Lambda, ECS/EKS, RDS, DynamoDB, SQS, etc.). - Strong understanding of relational (SQL) and NoSQL databases, including query optimization. - Experience deploying and managing services on Kubernetes. - Knowledge of DevOps practices, CI/CD pipelines, and infrastructure as code. - Familiarity with gRPC and microservices communication patterns. - Ability to write automated tests (unit, integration, contract). **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Software Engineering, or related field (or equivalent professional experience). - Relevant certifications (e.g., AWS Certified Developer – Associate, Kubernetes Administrator) are advantageous but not mandatory.

Leeds, United kingdom

On site

10-11-2025

Company Name

Owen Thomas

Job Title

Full-stack Developer (TypeScript/Golang) | AI, Scale-Up, 5 Million Users | Salary Up to £120,000 +Benefits | London, Hybrid 3 Days

Job Description

Job Title: Full‑stack Developer (TypeScript / Golang) Role Summary: Lead backend architecture and development, mentor junior engineers, review code, and collaborate with engineering management on technical strategy for AI‑driven scale‑up product. Expactations: • Minimum 5 years backend experience • Commercial proficiency in Go and TypeScript • Proven microservices design and implementation • Hands‑on Kubernetes and AWS cloud services • Infrastructure‑as‑code expertise (Terraform) • Strong database skills (SQL, Redis, DynamoDB, Elasticsearch) Key Responsibilities: • Provide technical leadership and guidance to backend team. • Design, develop, and maintain backend services and APIs. • Conduct thorough code reviews and uphold high code standards. • Mentor and coach junior engineers. • Coordinate and manage team workload and task allocation. • Collaborate with CTO and engineering management to define and execute technical strategy. Required Skills: • Go (Golang) programming; TypeScript/Node.js development. • Microservices architecture and RESTful/GraphQL APIs. • Kubernetes cluster management. • AWS services (EC2, RDS, S3, Lambda, etc.). • Terraform for infrastructure provisioning. • SQL databases, in‑memory stores (Redis), NoSQL (DynamoDB), and search engines (Elasticsearch). • Strong analytical, problem‑solving, and communication skills. Required Education & Certifications: • Bachelor’s degree in Computer Science, Software Engineering, or related field (or equivalent professional experience). • AWS Certified Solutions Architect or similar cloud certification advantageous. • Certification in Kubernetes (CKA/CKAD) or Terraform (HashiCorp) beneficial.

London, United kingdom

Hybrid

Mid level

11-11-2025