1 to 25 of 113 Remote/Hybrid Open Source Jobs in London

Software Maintenance Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
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 science, AI, engineering innovation, and IoT. Our customers include the world's leading … metal, virtualization (KVM), containerization (Docker/LXC/LXD), storage (Ceph and Linux filesystems), networking (OVS, OVN and Core networking), OpenStack, Kubernetes and the open source applications running on top of them. It will challenge you to show the breadth of your engineering skills, which will be needed ...

Cloud Field Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Help global companies embrace the latest private cloud infrastructure, Linux and cloud native operations, and open source applications. Our team applies expert insights to real-world customer problems, enabling the enterprise adoption of Linux Ubuntu, OpenStack, Kubernetes and a wide range of associated technology. This role has very … managed services team at the end of a project. They are also software engineers who use Python to develop Kubernetes operators and Linux open source infrastructure-as-code. The people who love this role are developers who like to solve customer problems through architecture, presentations and training. Location ...

Software Engineering Manager (Backend SaaS)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Software Engineering Manager (Backend SaaS) Canonical · London Licensed sponsor London On-Site Likely to sponsor About the role 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 … organisation Build automated, highly reliable image delivery, testing and publication pipelines Engage with many other teams at Canonical, as well as the open source community and commercial partners Work from home with global travel 4‐6 weeks per year for internal and external events Valued skills and experience ...

Senior Software Engineer

Hiring Organisation
Oscar Technology
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum
Already live with banks and financial institutions, and hiring to build the product further. You'll work across our data integration platform and our open-source schema language and ecosystem. What You'll Work On Mostly Kotlin backend, but everyone touches the full stack: the integration platform (streaming … pipelines, query execution, API composition, schema resolution, running in production at real financial institutions); our open-source schema language (compiler, type system, query engine, no prior compiler experience needed); our AI agent built on Spring AI (greenfield work orchestrating integrations autonomously); and the frontend (mainly Angular, some React ...

Salesforce/NetSuite Engineering Manager, Commercial Systems

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Canonical is a leading provider of open-source software and operating systems for global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation and IoT. Our customers include the world's leading public … skills of their direct reports, and who has the drive to deliver. This is an exciting opportunity to work with great people and exciting opensource solutions on innovative engineering solutions supporting Canonical's growth. The Commercial Systems unit is conceived as six engineering teams that closely collaborate ...

Account Executive (Enterprise)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
custom MSAs — without losing deal velocity Help build the enterprise GTM motion: feed market signal back to product and marketing, and turn Haystack's open-source community into pipeline What you bring to the team You can run a Haystack pipeline well enough to establish credibility … data infrastructure, or AI/ML platforms to engineering and platform teams Experience with enterprise security reviews for AI or data products Experience converting open-source users into enterprise customers Benefits Remote-first setup with flexible hours & tech of your choice 30 days vacation + extra days ...

Senior Software Engineer - Python/MongoDB

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
enabling high-performing, rock-solid MongoDB deployments on any cloud or platform our customers choose. We want to create the world's best open source analog to MongoDB Altas or Amazon DocumentDB, which can be owned, controlled and operated by end-users on their own multi-cloud … Linux systems administration, operations, and package management. You are passionate about quality and automatic testing. Work with one of the industry's pioneers in open source with intelligent engineers at every level from engineer to CTO and CEO level. At Canonical we've honed our remote-first culture ...

Software Engineer, New Grad - Infrastructure

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
technical team members. Willingness to learn and make decisions independently, and the ability to ask questions effectively. Eagerness to delve into the source code of open-source libraries (such as Cassandra or Chromium) to truly understand how they work or to debug an issue. Staying … date with recent industry practices and advancements in open-source technology. What We Require Engineering background in fields such as Computer Science, Mathematics, Software Engineering, or Physics. Familiarity with data structures, storage systems, cloud infrastructure, frontend frameworks, and other technical tools. Experience coding in programming languages, such ...

Senior Engineer - Payments

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
across international teams. Why Join Us? Competitive Package: Attractive salary + discretionary performance bonus. Continuous Growth: Dedicated funding for professional certifications, training, and conferences. Open Source First: We embrace open-source principles internally and actively encourage contributions to the wider developer community. About us Ebury delivers ...

Senior Engineer - PayE

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
What We Offer Compensation: Competitive salary and benefits package. Bonuses: Discretionary performance-based bonus. Growth: Continued personal development through funded training and professional certifications. Open Source Culture: We are Open Source-friendly, following open principles in our internal projects and actively encouraging contributions ...

Senior Software Engineer, Sandboxes (EU or East Coast Preferred)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
evolve the architecture as requirements grow. Mentor engineers on the team and set the bar in design reviews and code reviews. Engage with the open source and agentic development community around sandboxing, MCP, and related ecosystems. Participate in on-call rotations and respond to critical stability issues affecting … improvements. First 90 Days Lead the design and development of a significant improvement or feature of the local sandboxes stack. Engage with our open source project and the relevant upstream communities. Shape the team's technical direction, and drive architecture discussions. One Year Outlook (First Year) Deliver measurable ...

Manager, Lead Research Scientist, LLM Agents (Foundational Research)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
curious and open-minded individual with an interest in conducting state-of-the-art foundational machine learning research? Thomson Reuters Labs is seeking Research Scientists with a passion for building complex agent-based AI systems in a data-rich, complex academic environment driven by real-world problems. Foundational Research … model training. Extensive experience working on agent‐based systems, tool‐using AI, or multi‐agent coordination in LLM contexts (e.g., startup, industry, or extensive opensource experience). Strong software and/or infrastructure engineering skills and ensuring well‐managed software delivery, as evidenced by code contributions ...

Lead Solution Architect (SFIA 5)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
solve complex, real‐world challenges that have a direct impact on frontline services and public outcomes. You'll work with modern cloud‐native architectures, open source technologies, and Agile and DevSecOps practices to shape scalable, secure, and resilient solutions. As a trusted technical leader, you'll collaborate with … significant commercial experience across many of the following areas: Solution Architecture and Technical Design Strong software engineering background with previous hands‐on development experience Open Source technologies and frameworks Cloud platforms, ideally AWS Cloud‐native architectures and distributed systems Security architecture and secure‐by‐design principles Identity ...

Software Engineer - Data Infrastructure

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
senior level. We will help you identify a suitable position depending on your experience and interests. Engineers who thrive at Canonical are mindful of open-source community dynamics and equally aware of the needs of large, innovative organisations. Location: This role can be filled in European, Middle East … upgrades for long haul company events About Canonical Canonical is a pioneering tech firm that is at the forefront of the global move to open source. As the company that publishes Ubuntu, one of the most important open source projects and the platform ...

Cloud Native Specialist

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
code-level visibility into microservices without manual instrumentation or sidecar overhead.* Advocate for OpenTelemetry (OTel) integration and explain how Dynatrace extends the value of open-source telemetry in a production-grade environment.2. Domain Execution:* Lead technical discovery and high-stakes Proof of Concepts (POCs) specifically targeting "Born … Experience with eBPF-based monitoring tools.* Familiarity with FinOps principles (matching cloud spend to container performance).* Active participation in the CNCF community or open-source projects.## **Why you will love being a Dynatracer*** A one-product software company creating real value for the largest enterprises and millions ...

Software Engineer - Data Infrastructure - OpenSearch/ElasticSearch

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
levels. We will help you identify a suitable position depending on your experience and interests. Engineers who thrive at Canonical are mindful of open-source community dynamics and equally aware of the needs of large, innovative organisations. Location: This role can be filled in European, Middle East … upgrades for long haul company events About Canonical Canonical is a pioneering tech firm that is at the forefront of the global move to open source. As the company that publishes Ubuntu, one of the most important open source projects and the platform ...

Test Lead

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
acumen to drive quality across our engineering processes. You will be responsible for designing, building, and maintaining robust automation and performance testing frameworks using open-source tools, while also mentoring and guiding other engineers. Key Responsibilities: - Strategic Leadership: Plan and lead large-scale, complex testing activities, managing risks … identifying opportunities to improve quality and efficiency. - Technical Ownership: Build, maintain, and evolve automation frameworks using open-source technologies. - Process Improvement: Lead investigative work into existing processes to identify gaps and implement improvements. - Test Design & Execution: Design and execute a wide range of testing techniques including functional, performance ...

Senior Product Security Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
frameworks, authoring developer-facing security policies from scratch, and building automated policy-as-code gateway integrations. Public track record of CVEs, security research, or open-source contributions to security tooling. Advanced credentials such as OSCP, OSWE, CISSP or equivalent. Experience with on-chain/off-chain integration, payment … smart contract security. Familiarity with vulnerability management platforms (DefectDojo, Dependabot orchestration) and GRC/Gateway integrations. Prior contributions to security automation and developer tooling (open source or internal). COMPENSATION & PERKS Full-time salary based on experience and meaningful equity in an industry-leading company This ...

AI Engineer - Systems Integrator

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
using statistically robust methodologies Analysing failures and identifying opportunities for optimisation Experimenting with prompts, workflows and playbooks to improve outcomes Testing different models, including open-source and fine-tuned LLMs Evaluating and improving multi-agent workflows Researching defences against prompt injection and adversarial attacks Collaborating with security analysts … experience Experience evaluating AI systems or LLM performance Familiarity with cloud environments such as GCP Knowledge of modern software development practices Experience working with open-source AI models Interest in cyber security, threat detection or security operations Location & Working Pattern London Hybrid (fortnightly office travel plus occasional customer ...

Group Financial Controller

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
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 science, AI, engineering innovation, and IoT. Our customers include the world’s leading … travel upgrades for long-haul company events About Canonical Canonical is a pioneering tech firm at the forefront of the global move to open source. As the company that publishes Ubuntu, one of the most important open-source projects and the platform ...

Cloud Native Architect (AWS)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
solutions at enterprise scale. Innovation in delivery is always at the forefront of our minds, which is why we utilise a variety of cloud, open source and proprietary technologies to achieve the best possible outcome for our clients. We have world class architecture and software engineering communities … inclusive and welcoming environment, for everyone. Your skills and experience Excellent knowledge of AWS for delivery of cloud-native solutions. A strong background in open-source technologies and frameworks; API-centric architecture, and experience of designing scalable, resilient and secure applications. Microservice-based architectures using domain driven design ...

Solutions Architect

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
with hands‐on software development. You'll work directly with customers, from startups to large institutions, as a trusted technical advisor while contributing to open source projects and extending Coinbase's core products to unlock strategic client opportunities. This role involves substantial coding, and candidates must be actively … scale. Collaborate with sales teams to address prospect technical requirements and support deal closure. Architect distributed systems solutions for complex customer needs and build open source SDKs and reference implementations. Lead customer implementations end‐to‐end, delivering technical presentations, resolving roadblocks, and partnering with support teams to ensure ...

Remote Open Source Linux Engineer Upstream Bug Fixes

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
work on Linux-based infrastructure and applications, covering kernel, virtualization (KVM), containers (Docker/LXC/LXD), storage (Ceph), networking, OpenStack, Kubernetes, and related open source projects. The role is remote with teams across time zones and involves upstream bug fixes and cross-team collaboration. You will troubleshoot ...

Cross-Platform C++ Engineer — Open Source, Remote (EMEA)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
user experience. Location is remote in the EMEA region; travel internationally for company events is required. The role values distributed collaboration and deep open-source involvement. #J-18808-Ljbffr ...

Software Engineer, Observability

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
platform reliability through thorough testing. Collaborate with product managers, designers, and infrastructure teams to solve challenges and deliver top-tier solutions. Engage with the open-source community by contributing to projects and participating in discussions, supporting Vercel’s developer-focused mission. Collect feedback from developers and users … JavaScript* TypeScript* Go* Frontend Development* Observability* Data Ingestion* Data Storage* Data Processing* Distributed Systems* Data Visualization* Columnar Databases* Clickhouse* Tinybird* Messaging Systems* Streaming Services* Open Source* Web Performance Optimization* Testing* Collaboration #J-18808-Ljbffr ...