17 data engineer jobs found in Sheffield, south yorkshire

Machine Learning Engineer | Python | Pytorch | Natural Language Processing | LLM | Large Language Models | Remote, Europe About Us We build AI assistants that make technical knowledge instantly accessible. As a research engineer, you will work on advancing our system’s ability to answer increasingly complex technical questions. Our technology is already deployed on real-world developer documentation, where users can query information directly through an integrated AI assistant. The Challenges You’ll Work On Evaluating a retrieval-augmented-generation (RAG) system in production without labelled data Designing your own benchmarks from scratch Building an agentic retrieval pipeline that adapts between fast and more thorough query strategies Fine-tuning embeddings or reranking models What You’ll Do Collaborate closely with the core team and software engineers Stay up-to-date with the latest research and apply new ideas to real product challenges Design,...

This is a full-time, permanent opportunity for candidates based in the UK . Please note that visa sponsorship is not available for this role. This position also requires frequent travel to client sites within Europe. , with travel expenses covered by the company . About Nearform Nearform is an independent team of data & AI experts, engineers, and designers who build intelligent digital solutions and capability at pace. We create AI-enabled solutions that enhance digital experiences, empower developers, and deliver measurable results. In these ways, we partner with ambitious enterprises to deliver enduring impact. Our deep expertise in solving the world’s most complex digital problems, along with our collaborative, people-first approach, enables enterprises to build breakthrough products and modernise legacy systems by unleashing the power of AI. Today, our team of 500 experts in 20+ countries is trusted by leading enterprises including Lululemon, Puma, Sun Life,...

Grafana Labs is a remote-first, open-source powerhouse. There are more than 20M users of Grafana, the open source visualization tool, around the globe, monitoring everything from beehives to climate change in the Alps. The instantly recognizable dashboards have been spotted everywhere from a NASA launch and Minecraft HQ to Wimbledon and the Tour de France. Grafana Labs also helps more than 3,000 companies -- including Bloomberg, JPMorgan Chase, and eBay -- manage their observability strategies with the Grafana LGTM Stack, which can be run fully managed with Grafana Cloud or self-managed with the Grafana Enterprise Stack, both featuring scalable metrics (Grafana Mimir), logs (Grafana Loki), and traces (Grafana Tempo). We’re scaling fast and staying true to what makes us different: an open-source legacy, a global collaborative culture, and a passion for meaningful work. Our team thrives in an innovation-driven environment where transparency, autonomy, and trust fuel everything we do....

£70k – £90k • 0.5% – 2.0% • Fully Remote We are an AI-driven Hospitality Tech platform helping vacation rental owners automate their revenue on Booking.com. Unlike most "early-stage" startups, we are already at £100k ARR, growing month-on-month and have investment from angels. We have a product customers love, a validated business model, and we are now preparing to expand to Airbnb and Expedia. We are a lean team of two founders looking for a Founding Engineer. You will be the technical lead, working directly with us to brainstorm ideas, architecture and ship code quickly. The Role This is a Backend-First role (70/30 split). You will spend most of your time in Python/Django, but you must be willing to jump into React/Tailwind to ship complete features ‍ We have interesting technical challenges involving high-volume data and browser automation (MCP/AI) Scale the Backend: Build and ship features using Python (Django) and Postgres. High-Volume Scraping: Manage...

Job Title: AI Content Quality Analyst (Remote) Employment Type: Remote, part-time independent contractor Location: Remote within United States, United Kingdom, Canada, Ireland, Australia & New Zealand (You must be legally authorised to work in the country where you are based) Compensation: $15 - $18 per hour based on location, experience, responsibilities, and performance. Role Overview: We are hiring on behalf of one of our clients, a leading global player in the AI space. This remote, part-time contract role places you in a critical diagnostic position within the AI training loop. As a Content Quality Analyst, you will not only review individual pieces of text but also analyze the broader performance of the model. You will assess AI outputs against rigorous quality standards, identify recurring patterns of error, and provide the structured data needed to engineer a more accurate, helpful, and safe AI. Key Responsibilities: Analyze...

Job Title: Senior Software Engineer (AI HealthTech) Client: AI HealthTech Scale-Up – Backed by Top-Tier Investors, Led by World-Class Engineers Salary: Up to £100k + Bonus + Equity Location: Remote (UK-based) with an optional office Sells: Work on cutting-edge AI systems that power healthcare innovation at scale. Full remote flexibility across the UK, total ownership of greenfield projects, modern tech stack (Python/FastAPI/Cloud), and a culture that rewards curiosity, autonomy, and clean engineering. An AI HealthTech company is expanding its high-calibre engineering team and looking for Software Engineers who thrive on building elegant, scalable systems from the ground up. You’ll be joining a small, world-class team working on distributed backend platforms, data-driven AI tools, and core infrastructure supporting advanced medical technologies. This is a true software engineering role where you'll be designing, building, and scaling complex systems that...

Job Title: Software Engineer (AI HealthTech) Client: AI HealthTech Scale-Up – Backed by Top-Tier Investors, Led by World-Class Engineers Salary: Up to £100k + Bonus + Equity Location: Remote (UK-based) with an optional Holborn office Sells: Work on cutting-edge AI systems that power healthcare innovation at scale. Full remote flexibility across the UK, total ownership of greenfield projects, modern tech stack (Python/FastAPI/Cloud), and a culture that rewards curiosity, autonomy, and clean engineering. An AI HealthTech company is expanding its high-calibre engineering team and looking for Software Engineers who thrive on building elegant, scalable systems from the ground up. You’ll be joining a small, world-class team working on distributed backend platforms, data-driven AI tools, and core infrastructure supporting advanced medical technologies. This is a true software engineering role where you'll be designing, building, and scaling complex systems that...

About The Job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey . Position: AI Agent Infrastructure Engineer Type: Contract Compensation: $74–$168/hour Commitment: 20–30 hours/week Role Responsibilities Design, build, and optimize infrastructure for training, deploying, and scaling AI agents across distributed systems. Develop robust backend services, APIs, and orchestration frameworks that support multi-agent workflows and high-performance compute environments. Collaborate closely with research and product teams to integrate model-serving pipelines, memory systems, and reasoning components. Implement monitoring, observability, and failover mechanisms to ensure high system reliability and fault tolerance. Evaluate and refine infrastructure performance, identifying...

FactSet creates flexible, open data and software solutions for over 200,000 investment professionals worldwide, providing instant access to financial data and analytics that investors use to make crucial decisions. At FactSet, our values are the foundation of everything we do. They express how we act and operate, serve as a compass in our decision-making, and play a big role in how we treat each other, our clients, and our communities. We believe that the best ideas can come from anyone, anywhere, at any time, and that curiosity is the key to anticipating our clients’ needs and exceeding their expectations. FactSet’s AI & Automation team works to improve productivity of all employees using advanced AI and automation tools, enabling us to focus on higher value work. You will play a significant role in implementing solutions that benefit your colleagues. What You’ll Do Develop groundbreaking agentic workflows tailored to task automation within inhouse, and 3rd party licensed...

About The Job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey . Position: Senior Software Engineer Type: Independent contractor Compensation: $80–$160/hour Location: Remote Commitment: 15–25 hours/week, with flexibility up to 40 hours/week Role Responsibilities Review and refine AI-generated prompts, responses, and code. Validate algorithms and software concepts for technical accuracy. Provide structured feedback on solution quality and clarity. Tag and organize content by topic, difficulty, or language. Support benchmarking efforts to assess model capabilities. Work independently and asynchronously with flexible hours to improve AI systems. Qualifications Must-Have 5+ years of experience in software engineering, technical research, or educational content...

About The Job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey . Position: Software Engineer Type: Hourly Contractor Compensation: $85–$120/hour Location: Remote Duration: 1–2 months Commitment: 20–40 hours/week Role Responsibilities Develop and configure robust, high-performance systems for next-generation machine learning applications. Design and implement scalable APIs and service layers interfacing with advanced AI models. Configure environments and design databases to support real-world engineering work. Work independently and asynchronously to meet deadlines and improve AI model performance. Collaborate with AI research teams to ensure system robustness and performance. Qualifications Must-Have 3+ years of elite software engineering experience in...

Grafana Labs is a remote-first, open-source powerhouse. There are more than 20M users of Grafana, the open source visualization tool, around the globe, monitoring everything from beehives to climate change in the Alps. The instantly recognizable dashboards have been spotted everywhere from a NASA launch and Minecraft HQ to Wimbledon and the Tour de France. Grafana Labs also helps more than 3,000 companies -- including Bloomberg, JPMorgan Chase, and eBay -- manage their observability strategies with the Grafana LGTM Stack, which can be run fully managed with Grafana Cloud or self-managed with the Grafana Enterprise Stack, both featuring scalable metrics (Grafana Mimir), logs (Grafana Loki), and traces (Grafana Tempo). We’re scaling fast and staying true to what makes us different: an open-source legacy, a global collaborative culture, and a passion for meaningful work. Our team thrives in an innovation-driven environment where transparency, autonomy, and trust fuel everything we do....

Join Tether and Shape the Future of Digital Finance At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally, all at a fraction of the cost. Transparency is the bedrock of everything we do, ensuring trust in every transaction. Innovate with Tether Tether Finance: Our innovative product suite features the world’s most trusted stablecoin, USDT, relied upon by hundreds of millions worldwide, alongside pioneering digital asset tokenization services. But that’s just the beginning: Tether Power: Driving sustainable growth, our energy solutions optimize excess power for Bitcoin mining using eco-friendly practices in state-of-the-art,...

At Crossing Hurdles, we work as a referral partner. We refer candidates to Mercor that collaborates with the world’s leading AI research labs to build and train cutting-edge AI models. Organization: Mercor Position: Data Scientist (Kaggle Grandmaster) Referral Partner: Crossing Hurdles Type: Hourly Contract Compensation: $56/hour Location: Remote Commitment: 10–40 hours/week Role Responsibilities (Training support will be provided) Analyze large, complex datasets to identify patterns and generate actionable insights. Build high-performing predictive models, statistical analyses, and ML pipelines across varied data types. Design and implement rigorous experiment frameworks and validation strategies. Automate workflows, feature pipelines, and reproducible research environments. Conduct exploratory data analysis, hypothesis testing, and interpret modeling outcomes. Collaborate with ML engineers and research teams to productionize models at scale....

About The Job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey . Position: Android Mobile Engineer Type: Independent Contractor Compensation: $200/hour Location: Remote Duration: 1 month Commitment: 15–20 hours/week Role Responsibilities Develop and validate coding benchmarks in Kotlin or React Native. Curate tasks, solutions, and test suites from real-world Android repositories. Ensure benchmarks include robust unit and integration tests for solution verification. Debug, optimize, and document benchmark code to ensure reliability and reproducibility. Provide structured feedback on solution clarity and adherence to Android engineering best practices. Qualifications Must-Have 3–10 years of experience as an Android mobile engineer at a tier-1 tech company or...

About The Job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey . Position: Industrial Engineer Type: Independent Contractor Compensation: $70–$110/hour Location: Remote Duration: 3–4 weeks Commitment: 30–40 hours/week Role Responsibilities Develop deliverables addressing common requests in your professional domain. Review peer-developed deliverables to enhance AI research. Diagnose and solve real issues in machine learning systems. Work independently and asynchronously to meet deadlines. Contribute expertise to cutting-edge AI research. Qualifications Must-Have 4+ years professional experience in your domain. Excellent written communication with strong grammar and spelling skills. Start Date Immediately Compensation & Legal Hourly...

Job Title : Content Evaluator (Remote) Employment Type: Remote, part-time independent contractor Location: Remote within United States, United Kingdom, Canada, Ireland, Australia & New Zealand (You must be legally authorised to work in the country where you are based) Compensation: $15 - $18 per hour based on location, experience, responsibilities, and performance. Role Overview: We are hiring on behalf of one of our clients, a leading global player in the AI space. This remote, part-time contract role is centered on assessing the quality and relevance of AI-generated content. You will act as a critical judge, reviewing model outputs against strict guidelines to ensure they are helpful, honest, and harmless. Your feedback provides the essential data signals needed to refine the AI's performance and decision-making processes. Key Responsibilities: Evaluate pairs of AI-generated responses (Side-by-Side comparisons) to determine which...