Open Source Jobs in Cheshire

1 to 25 of 74 Open Source Jobs in Cheshire

Staff AI Engineer

Warrington, England, United Kingdom
JR United Kingdom
how generative AI is built and consumed globally, working alongside a world-class team renowned for record-setting performance and a strong commitment to open-source innovation. Responsibilities Collaborate with researchers, engineers, and product teams to develop innovative platform features and integrate cutting-edge advancements. Architect, build and … Passionate about building tools and systems that enhance the AI developer experience Preferred Experience developing large-scale and high-load production systems. Contributions to open-source AI frameworks or inference systems. Hands-on experience with advanced inference optimisation techniques, such as KVCache, MoE, adaptive batching, or gradient checkpointing. … that our contributions are not just good but exceptional. Openness and Transparency We believe trust and transparency are key to our success. We maintain open communication within our teams and with stakeholders, sharing both successes and challenges. Our open-source approach allows customers to explore our technology More ❯
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Staff AI Engineer

Chester, England, United Kingdom
JR United Kingdom
how generative AI is built and consumed globally, working alongside a world-class team renowned for record-setting performance and a strong commitment to open-source innovation. Responsibilities Collaborate with researchers, engineers, and product teams to develop innovative platform features and integrate cutting-edge advancements. Architect, build and … Passionate about building tools and systems that enhance the AI developer experience Preferred Experience developing large-scale and high-load production systems. Contributions to open-source AI frameworks or inference systems. Hands-on experience with advanced inference optimisation techniques, such as KVCache, MoE, adaptive batching, or gradient checkpointing. … that our contributions are not just good but exceptional. Openness and Transparency We believe trust and transparency are key to our success. We maintain open communication within our teams and with stakeholders, sharing both successes and challenges. Our open-source approach allows customers to explore our technology More ❯
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Software Engineer – Backend (On-site)

Chester, England, United Kingdom
JR United Kingdom
like to acknowledge that almost no candidate checks every box – and that is perfectly fine. If you are passionate about solving complex challenges and open to learning new technologies, we would love to hear from you. Nice to have: Machine Learning: Experience in generative models, LLMs, multi-modal models … and Deep Learning more generally. Open-source: Contributions to and experience in open-source projects. Startup experience: Experience with a startup work environment and wider ecosystem. Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact More ❯
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Software Engineer – Backend (On-site)

Warrington, England, United Kingdom
JR United Kingdom
like to acknowledge that almost no candidate checks every box – and that is perfectly fine. If you are passionate about solving complex challenges and open to learning new technologies, we would love to hear from you. Nice to have: Machine Learning: Experience in generative models, LLMs, multi-modal models … and Deep Learning more generally. Open-source: Contributions to and experience in open-source projects. Startup experience: Experience with a startup work environment and wider ecosystem. Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact More ❯
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Senior Python Developer

Warrington, England, United Kingdom
JR United Kingdom
currently 2 engineers + external partners) across complex data and cloud engineering projects Designing and delivering distributed solutions on an AWS-centric stack, with open-source flexibility Working with Databricks, Apache Iceberg, and Kubernetes in a cloud-agnostic environment Guiding architecture and implementation of large-scale data pipelines … in a startup/scaleup background and someone that is adaptable Languages: Python Cloud: AWS preferred, cloud-agnostic approach encouraged CI/CD & Ops: Open source tools, modern DevOps principles Why Join? Impactful Work – Help solve security problems that truly matter Ownership & Autonomy – Freedom to shape the stack More ❯
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Cloud Native Architect

Chester, England, United Kingdom
JR United Kingdom
and implementation of cloud-native solutions using AWS services. Architect scalable, secure, and resilient applications using microservices and containerisation technologies. Champion the use of open-source frameworks and API-centric architecture to enable interoperability and reuse. Work closely with development, security, and operations teams to align on best … design principles and event sourcing patterns in application development. Skills & Experience: Proven expertise in delivering AWS-based solutions in secure environments. Strong understanding of open-source technologies and frameworks. Experience with microservice architecture, containerisation (e.g., Docker, Kubernetes), and event-driven systems. Familiarity with structured architecture methodologies (e.g., TOGAF More ❯
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Cloud Native Architect

Warrington, England, United Kingdom
JR United Kingdom
and implementation of cloud-native solutions using AWS services. Architect scalable, secure, and resilient applications using microservices and containerisation technologies. Champion the use of open-source frameworks and API-centric architecture to enable interoperability and reuse. Work closely with development, security, and operations teams to align on best … design principles and event sourcing patterns in application development. Skills & Experience: Proven expertise in delivering AWS-based solutions in secure environments. Strong understanding of open-source technologies and frameworks. Experience with microservice architecture, containerisation (e.g., Docker, Kubernetes), and event-driven systems. Familiarity with structured architecture methodologies (e.g., TOGAF More ❯
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Head of Platform Engineering

Chester, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
and verbal communication, with the ability to align technical and business goals ? Bonus if you have: Familiarity with Python, Django, or Golang Contributions to open-source communities or tools Working knowledge of Postgres, Terraform, and CI/CD pipelines (e.g. GitHub Actions) Interest or experience in developer productivity … remote from anywhere in the UK Unlimited holiday Company wide events and team socials High-trust, high-impact culture Work with cutting-edge open-source tools in a collaborative, fast-moving environment Supportive team and strong learning/development culture Interview Process: Technical Interview Panel & meet the team More ❯
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Head of Platform Engineering

Warrington, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
and verbal communication, with the ability to align technical and business goals ? Bonus if you have: Familiarity with Python, Django, or Golang Contributions to open-source communities or tools Working knowledge of Postgres, Terraform, and CI/CD pipelines (e.g. GitHub Actions) Interest or experience in developer productivity … remote from anywhere in the UK Unlimited holiday Company wide events and team socials High-trust, high-impact culture Work with cutting-edge open-source tools in a collaborative, fast-moving environment Supportive team and strong learning/development culture Interview Process: Technical Interview Panel & meet the team More ❯
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Software Engineer

warrington, cheshire, north west england, united kingdom
KO2 Embedded Recruitment Solutions Ltd
coding in C, C++, Python or Java and will be comfortable contributing across the full design life cycle. Experience with embedded software development and open-source software will make your CV stand out. This role will best suit Software Engineers who are passionate about software development, looking to … Here no one project is the same so there are always new challenges and tasks to complete. Desirable Skill and Experience: Embedded software development Open-Source Software CI/CD Please contact Laurence Powell at KO2 Embedded Recruitment Solutions Ltd to discuss this role in further detail. More ❯
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Data Scientist AI & NLP Innovation

Chester, England, United Kingdom
JR United Kingdom
environment. Why Join? Be part of a newly established, fast-growing AI team Work on cutting-edge NLP and generative AI tools (e.g., RAG, open-source LLMs) Help automate and modernise business processes across a respected financial organisation Flexible, inclusive culture with purpose-driven values around environmental and … Data Science to scale innovative solutions What You Bring: 5+ years of hands-on experience in Python, ML, and NLP/LLMs Familiarity with open-source LLMs (e.g., LLaMA, Mistral, Qwen) and RAG pipelines Experience building APIs and interactive tools with FastAPI, Streamlit, or Gradio Solid understanding of More ❯
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Data Scientist AI & NLP Innovation

Warrington, England, United Kingdom
JR United Kingdom
environment. Why Join? Be part of a newly established, fast-growing AI team Work on cutting-edge NLP and generative AI tools (e.g., RAG, open-source LLMs) Help automate and modernise business processes across a respected financial organisation Flexible, inclusive culture with purpose-driven values around environmental and … Data Science to scale innovative solutions What You Bring: 5+ years of hands-on experience in Python, ML, and NLP/LLMs Familiarity with open-source LLMs (e.g., LLaMA, Mistral, Qwen) and RAG pipelines Experience building APIs and interactive tools with FastAPI, Streamlit, or Gradio Solid understanding of More ❯
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Remote Senior Software Engineer - 34123

Chester, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
unique opportunity to blend practical software engineering with AI research. What does day-to-day look like: Analyze and triage GitHub issues across trending open-source libraries. Set up and configure code repositories, including Dockerization and environment setup. Evaluating unit test coverage and quality. Modify and run codebases … software pipeline setup. Ability to understand and navigate complex codebases. Comfortable running, modifying, and testing real-world projects locally. Experience contributing to or evaluating open-source projects is a plus. Note: Experience working with well-maintained, widely-used repositories (500+ stars) is required. Nice to Have: Previous participation More ❯
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Remote Senior Software Engineer - 34123

Warrington, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
unique opportunity to blend practical software engineering with AI research. What does day-to-day look like: Analyze and triage GitHub issues across trending open-source libraries. Set up and configure code repositories, including Dockerization and environment setup. Evaluating unit test coverage and quality. Modify and run codebases … software pipeline setup. Ability to understand and navigate complex codebases. Comfortable running, modifying, and testing real-world projects locally. Experience contributing to or evaluating open-source projects is a plus. Note: Experience working with well-maintained, widely-used repositories (500+ stars) is required. Nice to Have: Previous participation More ❯
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DevRel Engineer

Warrington, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
and inspire developers. Gather insights from the community and share actionable feedback with the product team to shape our roadmap. Support and contribute to open source initiatives, helping to maintain our public repositories. What we're looking for; A solid Software Engineering background ideally using Rust or Python … cloud architecture and deployment models. A knack for creating clear, engaging technical content (blog posts, documentation, tutorials). Active participation in developer communities and open source projects . Strong verbal and written communication skills. Remote-first culture with flexible work schedules. Generous paid time off and flexible holidays. More ❯
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DevRel Engineer

Chester, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
and inspire developers. Gather insights from the community and share actionable feedback with the product team to shape our roadmap. Support and contribute to open source initiatives, helping to maintain our public repositories. What we're looking for; A solid Software Engineering background ideally using Rust or Python … cloud architecture and deployment models. A knack for creating clear, engaging technical content (blog posts, documentation, tutorials). Active participation in developer communities and open source projects . Strong verbal and written communication skills. Remote-first culture with flexible work schedules. Generous paid time off and flexible holidays. More ❯
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Senior Information Security Specialist

Warrington, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
specifically looking at application security and code analysis to ensure applications are built securely. The application security team deal with the security of closed source, open source and in house written applications. The objective is to ensure applications are developed in a way that is secure and … and throughout the project lifecycle. Contributing to and utilising our security testing methodologies, creating and updating technical documentation as necessary. Conducting manual and automated source code review. Liaising with the software development function to ensure that security is considered throughout the lifecycle. Identifying and managing any security flaws within More ❯
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Systems Developer – E-Commerce Integrations (Cloud-Native, AI-Driven)

warrington, cheshire, north west england, united kingdom
Protein Works
MSSQL, PostgreSQL Familiarity with Redis , ElasticSearch , REST APIs Experience with Windows-based development : services, scheduled tasks, web servers (e.g. IIS). Magento or other open-source e-commerce platform integration experience Sound knowledge of Software Architecture : Design Patterns (Enterprise, Architectural, DDD) The Twelve-Factor App Clean Code principles More ❯
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Front End ReactJS Software Engineer (mid-level, remote UK)

Warrington, England, United Kingdom
Hybrid / WFH Options
Thermo Fisher Scientific Inc
Experienced with other elements of our tech stack. Experienced with infrastructure-as-code tools such as Bicep, ARM Templates, Terraform, or similar. Contributions to open-source projects or personal projects. Nice to have Certifications: Microsoft Certified: Azure Developer Associate. Microsoft Certified Azure Solutions Architect Associate. Full Job Profile More ❯
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Cloud Native Engineer

Chester, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
renowned software engineering division. Their teams deliver enterprise-grade solutions for some of the UK’s most high-profile organisations, using the latest in open-source tooling, DevOps practices and cloud-native design. They are now seeking a Cloud Native Engineer with deep AWS experience to join their More ❯
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Cloud Native Engineer

Warrington, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
renowned software engineering division. Their teams deliver enterprise-grade solutions for some of the UK’s most high-profile organisations, using the latest in open-source tooling, DevOps practices and cloud-native design. They are now seeking a Cloud Native Engineer with deep AWS experience to join their More ❯
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Junior Software Engineer

Warrington, England, United Kingdom
JR United Kingdom
Understanding of or working with AI/ML algorithms and data science. Docker and Kubernetes. Experience with Large Language Model stacks, vector databases, Haystack, open-source (Mistral, Falcon, Llama 3), and closed-source models like GPT-4 and Claude. Knowledge of Git version control, branching, and code More ❯
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Java Technical Lead

warrington, cheshire, north west england, united kingdom
ECOM
microservices architecture and containerization (Docker, Kubernetes) Exposure to CI/CD pipelines and DevOps practices Background in agile methodologies and delivery management Contributions to open-source Java libraries or frameworks Why Join Them? 🧠 Work with brilliant, passionate engineers 💼 Real ownership & influence over the product roadmap 🌍 Flexible working hours More ❯
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Senior Backend Engineer (Go) - AI startup

Chester, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
event-driven design Experience working with cloud platforms (e.g., AWS, GCP, Azure) Familiarity with monitoring, logging, and observability tools Bonus Points For Contributions to open-source projects Contributions to an AI product If scalability, security, databases and performance is your thing, looking for high ownership and impact - this More ❯
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Senior Backend Engineer (Go) - AI startup

Warrington, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
event-driven design Experience working with cloud platforms (e.g., AWS, GCP, Azure) Familiarity with monitoring, logging, and observability tools Bonus Points For Contributions to open-source projects Contributions to an AI product If scalability, security, databases and performance is your thing, looking for high ownership and impact - this More ❯
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Open Source
Cheshire
25th Percentile
£46,250
Median
£52,500
75th Percentile
£58,750