Open Source Job Vacancies

326 to 350 of 3,143 Open Source Jobs

Senior Go Developer

United Kingdom
Hybrid / WFH Options
Tyk
unit testing, code reviews, design documentation). Proficiency in applying SOLID principles and Test-Driven Development methodologies. Experience with cloud products, Kubernetes, or other orchestration tools. API management experience. Open-source contributions. Highly organised with exceptional attention to detail. Strong communication skills. Passion for continuous improvement in the software delivery lifecycle. Experience influencing product strategies through technical knowledge. More ❯
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Software Development Engineer in Test (E2 Engineer)

Bournemouth, England, United Kingdom
Hybrid / WFH Options
Nationwide
reporting. About you We need somebody with: Hands on experience on performance improvement activities like query optimization, continuous improvement and full stack solution. Good experience in scripting using multiple opensource tools – Python, C# and Javascript Experience in capacity modelling and performance engineering Experience in Selenium – Java, API Testing, Load Runner tool capabilities Experience with large-scale, complex systems and integrations. More ❯
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Software Engineer - Solutions Engineering

London, England, United Kingdom
Canonical
work permit required: Yes col-narrow-right Job Reference: 6e3048b8be64 Job Views: 47 Posted: 24.06.2025 Expiry Date: 08.08.2025 col-wide Job Description: Help us shape the future of open source IT, devops, and IS, from bare metal to containers. Our goal is to revolutionise open source application and infrastructure operations. We are on a mission … enables us to improve our infra-as-code products based on our own real experience, mirroring that of our users and customers. We work in Python and Golang, creating open source operations capabilities that simplify these operations for anybody, worldwide, who is building on Ubuntu. Our team collaborates with product, engineering, and operations teams. Most of the work … is pure open source Python software development, with some planned work in Golang. The expectation is to focus on quality, design, documentation, tests and performance. The team develops and enhances our opscode and other open source packages, to ensure our platform is the easiest, most robust, and best performing way to drive your data centre. This More ❯
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Senior Site Reliability / Gitops Engineer

Glasgow, Scotland, United Kingdom
Canonical
Senior Site Reliability/Gitops Engineer Join to apply for the Senior Site Reliability/Gitops Engineer role at Canonical . Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is widely used in enterprise initiatives such as public cloud, data science, AI, engineering innovation … This role is ideal for an automation-focused senior technologist passionate about Linux, eager to develop their career with Canonical, and to contribute to the success of Ubuntu and open source products. Job Summary The IS team supports and maintains Canonical’s IT production services, serving over 60 million Ubuntu users. As a Senior SRE & Gitops Engineer, you … will drive operations automation in both private and public clouds, utilizing open source infrastructure as code tools, CI/CD practices, and Canonical’s automation products. You will also provide feedback to developers on product operation at scale, contribute to open source projects, and collaborate with global teams to deliver high-quality services. Responsibilities Lead automation More ❯
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Senior Software Engineer - MySQL (Remote)

London, England, United Kingdom
Hybrid / WFH Options
Percona
Percona is looking for a flexible and efficient Senior C/C++ Software Engineer to join its Open Source Software Development team. You will work on the Percona Server for MySQL, Percona XtraBackup, Percona XtraDB Cluster and Oracle MySQL. You will work from your home office, using online tools and resources to contribute to a fast moving and … Will Do: Design and implement new features and improvements Diagnose and fix defects in Percona Server for MySQL, Percona XtraBackup, Percona XtraDB Cluster and Oracle MySQL products Perform periodic source code merges from other open source repositories Contribute to upstream projects that we leverage to bring our own solutions to the community Develop test cases for continuous … atomics, and locking primitives Knowledge of various programming and scripting languages such as BASH, Perl, and Python Proficiency with tools like gdb and strace Proficiency with git, github, and source code management methodologies Knowledge of Open Source software concepts and community What Will Make You Stand Out: Knowledge of high-performance algorithms on modern multicore hardware Established More ❯
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Python and Kubernetes Software Engineer - Data, Workflows, AI/ML & Analytics

London, England, United Kingdom
Hybrid / WFH Options
Canonical
EU work permit required: Yes col-narrow-right Job Reference: 2f3afabc6d1f Job Views: 3 Posted: 29.06.2025 Expiry Date: 13.08.2025 col-wide Job Description: Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives such as public cloud, data … is founder led, profitable and growing. We are hiring Python and Kubernetes Specialist Engineers focused on Data, Workflows, AI/ML and Analytics Solutions to join our teams building open source solutions for public cloud and private infrastructure. As a software engineer on the team, you'll collaborate on end-to-end data analytics and MLOps solutions composed … of popular, open-source, machine learning tools, such as Kubeflow, MLFlow, DVC, and Feast. You may also work on ETL, data governance and visualization tools like Apache SuperSet, dbt, workflow orchestration tools such as Airflow and Temporal, or data warehouse solutions such as Apache Trino, or ClickHouse. These solutions may be run on servers or on the cloud More ❯
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Containerization & Virtualisation Engineer

London, England, United Kingdom
Canonical
container technology - from the kernel through userspace. Apply here if you are an exceptional Go, Rust, or C/C++ software engineer and want to work on next-generation open source VMM or container technology, or related open source networking and storage. Container, virtualisation and cloud infrastructure have become essentials of modern software deployments. We invest … in open source related to application isolation, workload orchestration, system or OCI containers, micro service architecture or cloud infrastructure. Here are some examples of projects under way at Canonical. RustVMM has great potential as a new hypervisor for Linux. We are building a team to work on this, with an emphasis on performance, security and operability. Work in … poor. Canonical is in a good position to publish a portfolio of outstanding Docker images. Our Rockcraft team is designing and implementing an elevated Docker image experience for the open source community. LXD is a modern system container and virtual machine manager that is widely used on Ubuntu, ChromeOS and other Linux platforms. LXD engineering spans the entire More ❯
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Software Engineer - Cross-platform C++ - Multipass

Manchester, England, United Kingdom
Hybrid / WFH Options
Canonical
C++ - Multipass role at Canonical Get AI-powered advice on this job and more exclusive features. Use your deep C++ skills on Windows and MacOS to build an amazing open source developer experience with Multipass, the workstation mini-cloud at your fingertips which provides Ubuntu and appliance VMs on demand for build, test and prototyping. The Multipass team … Review code and architecture as part of Canonical's engineering process Collaborate proactively with a distributed team Debug, track down and fix issues encountered by our users Foster the open source community and support customers when needed Travel internationally for up to two weeks, twice a year, for company events What we are looking for in you Cross … with software testing and test-driven development Extremely high personal standards for code quality, testing and design Knowledge of hypervisor technologies such as Hyper-V, VirtualBox, KVM, and QEMU Open source experience and involvement Knowledge of CI systems a plus Capacity to learn quickly about new systems and techniques Excellent communication skills in English - both verbal and written More ❯
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Senior Cloud Native Security Consultant

London, England, United Kingdom
ControlPlane
in UK or EU required) Employment Status: Full Time Salary: Competitive and Market Based Who is ControlPlane? ControlPlane is a London headquartered consultancy specialising in cloud-native, Kubernetes, and open source solutions. Our expertise lies in helping organisations adopt and secure complex cloud infrastructures by implementing security measures that are "secure-by-design" and "secure-by-default." This … clients range from multinational banks to tech giants and public clouds, where we assist with both security and operational needs. In addition to consulting, we are active in the open source community, supporting projects like Flux CD and providing security tools for Kubernetes environments. Over the coming years you'll see us retain our focus on solving difficult … problems for clients with intense security controls using pragmatic, real world solutions. Taking our extensive R&D to help organisations consume next generation and open source projects safely and securely - that might be extending our work with FINOS AI Readiness or the overhaul of open source supply chain security. What We're Looking For in a More ❯
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Cloud Engineer (Linux)

Manchester, Lancashire, United Kingdom
Hybrid / WFH Options
Capgemini
see a wide range of challenges over time, every project is different. Innovation is at the heart of all we do, which is why you will be utilising various open-source and proprietary technologies. Hybrid working: The places that you work from day to day will vary according to your role, your needs, and those of the business … to Cloud - working as part of a team to migrate application workloads to public cloud, taking end-to-end responsibility for the Linux workloads Platform Modernisation - helping clients embrace open-source solutions embracing Linux, moving away from complex and expensive mid-range systems Public Cloud Deployment - working with a DevOps or SRE squad, providing expertise across all Linux … solutions such as docker, Kubernetes and Red Hat OpenShift. Optimising Linux Platforms - helping to improve resilience, availability, monitoring, automation and security, often in public cloud (AWS, Azure, GCP), using open-source, commercial and cloud platform tools & services. ERP to Cloud - helping customers adopt public cloud for ERP (SAP, Oracle) solutions, often with a reliance on Linux as the More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Junior Software Engineer - Cross-platform C++ - Multipass

London, England, United Kingdom
Hybrid / WFH Options
Canonical
Multipass Join to apply for the Junior Software Engineer - Cross-platform C++ - Multipass role at Canonical Use your deep C++ skills on Windows and MacOS to build an amazing open source developer experience with Multipass, the workstation mini-cloud at your fingertips which provides Ubuntu and appliance VMs on demand for build, test and prototyping. The Multipass team … Review code and architecture as part of Canonical's engineering process Collaborate proactively with a distributed team Debug, track down and fix issues encountered by our users Foster the open source community and support customers when needed Travel internationally for up to two weeks, twice a year, for company events What we are looking for in you Cross … with software testing and test-driven development Extremely high personal standards for code quality, testing and design Knowledge of hypervisor technologies such as Hyper-V, VirtualBox, KVM, and QEMU Open source experience and involvement Knowledge of CI systems a plus Capacity to learn quickly about new systems and techniques Excellent communication skills in English - both verbal and written More ❯
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Senior Consultant - Red Hat with Security Clearance

San Antonio, Texas, United States
Hybrid / WFH Options
Trilogy Innovations Inc
partner and certified reseller of their products. We are looking for a Senior Consultant for Red Hat technologies to join our talented team of professionals and help clients drive open source transformation. In this role, you will be responsible for providing technical guidance and support to our federal customers, developing solutions for complex scenarios, and demonstrating the value … of open source solutions. To be successful in this role, you must have a deep understanding of open source technologies, a passion for problem-solving, and experience working with stakeholders from both the business and technical sides of an organization. You must also demonstrate excellent communication and presentation skills, an ability to prioritize tasks, and a … focus on Red Hat technologies. Red Hat Certified Systems Administrator (RHCSA) and/or RH Certified Engineer (RHCE) certification is highly desirable. Strong understanding of Linux-based systems and open-source technologies. Experience in virtualization technologies, preferably with Red Hat Virtualization. Excellent scripting skills (Bash, Python, Ansible etc.) for automation tasks. Strong analytical and problem-solving abilities. Effective More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

R&D DevOps (Documentation)

Cambridge, England, United Kingdom
Ansys
enhance our delivery pipeline and streamline operations. Dive into our products to understand real-world customer use cases and help shape better software. Promote secure coding practices, help manage open-source dependencies, and support licensing compliance. Suggest ideas for improving UX and usability based on your hands-on experience with the tools. 🎓 What We’re Looking For A … for quality, collaboration, and continuous improvement. ⭐ Bonus Points For Familiarity with Ansys products or engineering simulation tools. Experience with DITA, XML, Git, Camtasia, or oXygen XML Editor. Understanding of open-source licensing, code security, and the Secure Software Development Lifecycle (SSDLC). Exposure to C# or C++ in a development or DevOps context. More ❯
Posted:

Senior Technical Account Manager

United Kingdom
Hybrid / WFH Options
Red Hat Limited
long-lasting loyalty between Red Hat and our customers. You have the opportunity to shape the future of our technology along with subject matter experts and developers in the Open Source Community. What you will do Develop relationships with key business and IT stakeholders and become an expert on customer implementations by understanding their top business goals and … Ensure high level of customer experience with each qualified engagement Analyze and present periodic reviews of operational performance to customer leadership Establish and maintain parity with Red Hat's open hybrid cloud strategy Delivering trainings and presentations to customers staff Travel, as necessary, to visit customers or internal events What you will bring Expertise with enterprise cloud solutions like … CI) and continuous delivery (CD) concepts Prior experience serving in a technical leadership or mentorship role About Red Hat Red Hat is the world's leading provider of enterprise open source software solutions, using a community-powered approach to deliver high-performing Linux, cloud, container, and Kubernetes technologies. Spread across 40+ countries, our associates work flexibly across work More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Technical Account Manager

London, England, United Kingdom
Hybrid / WFH Options
Red Hat Limited
long-lasting loyalty between Red Hat and our customers. You have the opportunity to shape the future of our technology along with subject matter experts and developers in the Open Source Community. What you will do Develop relationships with key business and IT stakeholders and become an expert on customer implementations by understanding their top business goals and … Ensure high level of customer experience with each qualified engagement Analyze and present periodic reviews of operational performance to customer leadership Establish and maintain parity with Red Hat’s open hybrid cloud strategy Delivering trainings and presentations to customers staff Travel, as necessary, to visit customers or internal events What you will bring Expertise with enterprise cloud solutions like … CI) and continuous delivery (CD) concepts Prior experience serving in a technical leadership or mentorship role About Red Hat Red Hat is the world’s leading provider of enterprise open source software solutions, using a community-powered approach to deliver high-performing Linux, cloud, container, and Kubernetes technologies. Spread across 40+ countries, our associates work flexibly across work More ❯
Posted:

Software Engineer - Python Developer Productivity

London, England, United Kingdom
Hybrid / WFH Options
Palantir
software you develop to build capabilities used by research scientists, aerospace engineers, intelligence analysts, and economic forecasters in countries around the world. There will be opportunities to contribute to open source software, including projects maintained by others that we leverage. You’ll work autonomously within a community that will support and challenge you as you grow to become … tools and development processes. Push Palantir to the cutting edge of software supply chain security. Technologies We Use A variety of languages, including Python, Java, Go, Rust, and TypeScript. Open-source databases like Cassandra, Lucene, Elasticsearch. Open-source libraries/frameworks like Rattler, Conda, GraphQL, Undertow, Jackson and Log4j. Industry-standard build tooling, including Hatch, Gradle … decisions impact your users and a drive to super-power those people, particularly through empathy for developer/operator workflows and productivity. Awareness of recent industry best practices and open source advancements. Great problem solving skills with ability to evolve complex systems. What We Require 2+ years of software engineering experience, preferably in fields such as Computer Science More ❯
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Senior Software Engineer – Backend (Remote)

City of London, London, United Kingdom
Hybrid / WFH Options
Zettafleet
non-technical stakeholders. We would 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. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact on day one. Competitive salary, equity and benefits package. 28 days + More ❯
Posted:

Senior Software Engineer – Backend (Remote)

East London, London, United Kingdom
Hybrid / WFH Options
Zettafleet
non-technical stakeholders. We would 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. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact on day one. Competitive salary, equity and benefits package. 28 days + More ❯
Posted:

Senior Software Engineer – Backend (Remote)

London Area, United Kingdom
Hybrid / WFH Options
Zettafleet
non-technical stakeholders. We would 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. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact on day one. Competitive salary, equity and benefits package. 28 days + More ❯
Posted:

Senior Software Engineer – Backend (Remote)

Bury, Greater Manchester, United Kingdom
Hybrid / WFH Options
Zettafleet
non-technical stakeholders. We would 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. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact on day one. Competitive salary, equity and benefits package. 28 days + More ❯
Posted:

Senior Software Engineer – Backend (Remote)

Bolton, Greater Manchester, United Kingdom
Hybrid / WFH Options
Zettafleet
non-technical stakeholders. We would 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. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact on day one. Competitive salary, equity and benefits package. 28 days + More ❯
Posted:

Senior Software Engineer – Backend (Remote)

Central London / West End, London, United Kingdom
Hybrid / WFH Options
Zettafleet
non-technical stakeholders. We would 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. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact on day one. Competitive salary, equity and benefits package. 28 days + More ❯
Posted:

Senior Software Engineer – Backend (Remote)

Leigh, Greater Manchester, United Kingdom
Hybrid / WFH Options
Zettafleet
non-technical stakeholders. We would 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. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact on day one. Competitive salary, equity and benefits package. 28 days + More ❯
Posted:

Senior Software Engineer – Backend (Remote)

Leeds, West Yorkshire, United Kingdom
Hybrid / WFH Options
Zettafleet
non-technical stakeholders. We would 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. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact on day one. Competitive salary, equity and benefits package. 28 days + More ❯
Posted:

Senior Software Engineer – Backend (Remote)

Altrincham, Greater Manchester, United Kingdom
Hybrid / WFH Options
Zettafleet
non-technical stakeholders. We would 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. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact on day one. Competitive salary, equity and benefits package. 28 days + More ❯
Posted:
Open Source
10th Percentile
£50,000
25th Percentile
£62,500
Median
£73,000
75th Percentile
£103,750
90th Percentile
£137,500