1 to 25 of 59 Remote Open Source Jobs in the UK excluding London

s your chance to take full ownership of frontend projects from design to delivery with minimal supervision! About Ballerine Ballerine is a high-growth, early-stage startup building an open-source platform for identity verification and risk management in the financial sector. It’s a fast-paced team preparing for Series A funding — and looking for a Senior … in React, TypeScript, modern frontend frameworks and architectures • Strong understanding of state management, performance optimization, and scalable component-driven design • Experience with testing frameworks (Jest, Cypress, Playwright) • Comfort with open-source principles and contributions • Clear, confident communication in English (minimum C1, no heavy accents) • Ability to onboard quickly and deliver at startup pace • Proactive, independent, and ownership-driven … Chance to join a core team pre-Series A, shaping the product and the company’s direction • Work on complex, high-scale challenges with cutting-edge tools (LLMs, AI, open-source) • A culture where your voice matters — small team, high impact, no bureaucracy • Opportunities for technical leadership and direct influence on strategy • Fully remote role Responsibilities • Architect, develop More ❯

and Bristol, our UK offices are where emerging talent contributes to global innovation. Whether you're helping to shape the next generation of processors or building tools used across open-source communities, the work you do here will have real-world impact from day one. Our roots in the UK run deep and so does our commitment to … the UK. I wanted to join Arm to grow at a company tackling some of the most exciting challenges in tech, in an inclusive and welcoming environment. Working on open-source projects has been a rewarding challenge - learning how to contribute on behalf of Arm and meet the high standards these projects demand. Intern, based in Manchester Graduate … looking for more than just technical ability. At Arm, we want individuals who are curious, collaborative, and motivated to learn. Whether you're experimenting with side projects, contributing to open-source work, or stepping outside your comfort zone, we value candidates who bring initiative and creativity to everything they do. "I'd recommend checking out the blogs on More ❯

component, functional, system integration and regression tests. - Experience working with Git on small to medium sized teams. - Experience designing and developing REST APIs for high volume clients. - Experience with open-source frameworks is a plus especially maintaining or contributing to open source projects! - Experience with container and container orchestration technologies, such as Docker and Kubernetes. - Comfortable More ❯

practices, performs triaging of security issues, and implements fixes to deliver secure applications. Familiar with common software vulnerabilities and leading practices to mitigate. Should have some experience in researching open- source technologies for use in building systems and participate in open source communities as needed. Works on projects of moderate scope and complexity. Pro-actively identifies More ❯

React and Typescript/Open-Source Software Engineer to join our talented & recently formed creative team. Based in Manchester and fully remote, the team are designing and developing the next generation containerised IT infrastructure.This React and TypeScript Software Engineer opportunity is deeply technical, and we want someone with solid Python or TypeScript experience and a thirst to know … enjoys peer code review. Any exposure to Angular front-end tech is highly advantageous.Are you excited about Golang, Jenkins, Dockers, Kubernetes, architecture, test driven development, API's and everything open source? Then I'd love to hear from you.Superb environment, office, tech stack and ability to learn from one of the greatest in the industry. Please apply now More ❯

React and Typescript/Open-Source Software Engineer to join our talented & recently formed creative team. Based in Manchester and fully remote, the team are designing and developing the next generation containerised IT infrastructure. This React and TypeScript Software Engineer opportunity is deeply technical, and we want someone with solid Python or TypeScript experience and a thirst to … peer code review. Any exposure to Angular front-end tech is highly advantageous. Are you excited about Golang, Jenkins, Dockers, Kubernetes, architecture, test driven development, API's and everything open source? Then I'd love to hear from you. Superb environment, office, tech stack and ability to learn from one of the greatest in the industry. Please apply More ❯

Location: Manchester, Fully Remote Category: Contract Jobs Salary: 225pd + Outside IR35, Fully Remote Ref: JT/JC/5956 Contact Name: James Clarke Telephone: React and Typescript/Open-Source Software Engineer to join our talented & recently formed creative team. Based in Manchester and fully remote, the team are designing and developing the next generation containerised IT … peer code review. Any exposure to Angular front-end tech is highly advantageous. Are you excited about Golang, Jenkins, Dockers, Kubernetes, architecture, test driven development, API's and everything open source? Then I'd love to hear from you. Superb environment, office, tech stack and ability to learn from one of the greatest in the industry. Please apply More ❯

support a live on-premise deployment and maintenance of Kubernetes clusters using RKE2. This role sits within a delivery critical environment and requires direct experience with infrastructure as code, open-source integration and hands-on cluster configuration. Youll be working across: Multi-node RKE2 clusters set-up, networking, RBAC, disaster recovery and failover Installation and configuration of open source components Including Prometheus, Grafana, Loki, Alloy, PostgreSQL, Rook Ceph, ActiveMQ Artemis, and Keycloak Kubernetes native deployment tooling - Helm and Kustomize (creation and use required) plus exposure to FluxCD pipelines Service integration and lifecycle management - dashboards, databases, identity, messaging and object storage On-prem delivery mindset no cloud native shortcuts, full infrastructure control from install to runtime Clear More ❯

services, scheduled tasks, web servers (e.g. IIS) Experience with containers such as Docker or Kubernetes and Cloud platforms: AWS (preferred), Azure, or GCP Beneficial to have Magento or other open-source e-commerce platform integration experience Prior experience building middleware for data sync, order processing, and internal APIs in a multi-system e-commerce environment would be highly More ❯

support to help you grow 5 Paid Training Days : Stay sharp with continuous learning Pension, Share Scheme, Bonus : A package that rewards your impact You'll be working with open-source tools and modern cloud platforms like AWS and Azure, deploying secure software across public and private environments. Every line of code you write will contribute to systems More ❯

infrastructure architecture is a plus. Understanding of modern authentication protocols such as OAuth2 and OIDC. Consideration of cross-cutting concerns like observability and security in infrastructure design. Contributions to Open Source projects are a plus. As an equal opportunity employer we welcome applications that reflect the diversity of our wider community. Please let us know at any time … being a nice person Truly flexible working hours - school pick up, volunteering, gym - no problem Generous leave - 27 days’ holiday plus bank holidays and enhanced family leave Transparent and open culture - you will be listened to and heard More ❯

to learn the business supported by the applications - Knowledge and desire to use agile software development practices Skills Desired: - JMS, MQ, Kafka - MongoDB - Knowledge of a range of common Open Source libraries used in Java development - Database performance tuning (relational and document) - Python/Shell Scripting - Financial domain knowledge (eg Equities) Inside IR35 - hybrid working - Glasgow Based More ❯

Python Skills and experience we’d love you to have... Understanding of cloud computing security concepts Experience in relational cloud based database technologies like Snowflake, BigQuery, Redshift Experience in open source technologies like Spark, Kafka, Beam Good understanding of Cloud providers – AWS, Microsoft Azure, Google Cloud Familiarity with DBT, Delta Lake, Databricks Experience working in an agile environment More ❯

Python Skills and experience we’d love you to have... Understanding of cloud computing security concepts Experience in relational cloud based database technologies like Snowflake, BigQuery, Redshift Experience in open source technologies like Spark, Kafka, Beam Good understanding of Cloud providers – AWS, Microsoft Azure, Google Cloud Familiarity with DBT, Delta Lake, Databricks Experience working in an agile environment More ❯

Office/Remote Reporting to: Engineering Manager Job Purpose: We are seeking innovative Linux Systems Engineer to help shape the next generation of secure endpoint solutions. This role is open to both experienced engineers ready to tackle complex challenges and mid-level engineers eager to learn, grow, and innovate. You will work at the intersection of Linux internals, networking … C programming skills for low-level or performance-critical development. Experience with containerisation (Docker, Kubernetes). Familiarity with endpoint security, intrusion detection, or system hardening. Contributions to Linux or open-source projects. Experience with debugging, profiling, or performance optimisation tools. Why Join Us Shape the future of secure endpoint technology. Work on high-impact projects for global, high More ❯

engineering teams to streamline developer workflows. Ensure scalability, security, and usability of the developer portal. Provide technical guidance, documentation, and training for engineering teams adopting Backstage. Contribute to Backstage open-source ecosystem (where applicable). Profile The Spotify Backstage Developer will have strong experience in TypeScript/JavaScript (React knowledge highly desirable). Experience working with Spotify Backstage More ❯

Proven track record of delivering and maintaining real-time embedded systems in C/C++ Strong programming skills in C and C++. Solid understanding of embedded Linux development and open-source toolchains. Knowledge of common communication protocols, including TCP/IP, UDP, RS-485, SPI, and I2C Desirable: Experience developing embedded firmware on Linux-based systems. Familiarity with More ❯

modern architecture principles Deploy solutions to cloud environments (AWS, Azure, and private cloud) Contribute across the full software development lifecycle from requirements gathering through to delivery and support Leverage open-source libraries, GitLab CI/CD, and infrastructure-as-code Collaborate effectively with internal stakeholders and clients to deliver robust, user-focused solutions Essential Skills & Experience Strong experience More ❯

modern architecture principles Deploy solutions to cloud environments (AWS, Azure, and private cloud) Contribute across the full software development lifecycle from requirements gathering through to delivery and support Leverage open-source libraries, GitLab CI/CD, and infrastructure-as-code Collaborate effectively with internal stakeholders and clients to deliver robust, user-focused solutions Essential Skills & Experience Strong experience More ❯

pair programming, and continuous integration/deployment processes. Help troubleshoot and resolve live service issues, ensuring high availability and resilience. Work within GDS (Government Digital Service) standards, contributing to open-source where applicable. Essential Skills and Experience Tech stack: Frontend- Express/Casa/Nunjuks with Typescript Backend- Java/Spring boot with some AWS integration's (SNS More ❯

pair programming, and continuous integration/deployment processes. Help troubleshoot and resolve live service issues, ensuring high availability and resilience. Work within GDS (Government Digital Service) standards, contributing to open-source where applicable. Essential Skills and Experience Tech stack: Frontend- Express/Casa/Nunjuks with Typescript Backend- Java/Spring boot with some AWS integration's (SNS More ❯

automation tools, and e-commerce analytics. Familiarity with customer support platforms (Gorgias, Zendesk, Intercom). Knowledge of containerisation (Docker), CI/CD pipelines, and real-time features. Contributions to open-source Laravel or Shopify projects. Tech Stack Backend: Laravel, PHP, MySQL Frontend: Livewire, Alpine.js, Tailwind CSS Cloud: AWS (SQS, S3, Lambda, EC2) Integrations: Shopify API, Stripe, Recharge, Klaviyo More ❯

software solutions with up-to-date capabilities. As a Senior Software Engineer, you will join an Agile team and gain exposure to: Designing, developing, and testing software solutions Utilizing open-source libraries and components Using tools like GitLab for continuous integration pipelines to monitor software quality and security Deploying systems across environments, including AWS and Azure cloud platforms More ❯

teams support diverse projects, developing bespoke software solutions and enhancing capabilities. As a Senior Software Engineer in an Agile environment, you will: Design, develop, and test software solutions Utilize open-source libraries and components Use tools like GitLab for continuous integration, ensuring quality and security Deploy systems across public (AWS, Azure) and private clouds Engage throughout the software More ❯

hybrid model, with regular customer engagement (typically bi-weekly). Key Responsibilities Implement software solutions, including design, development, and testing Work with a wide range of technologies, specialising in open-source libraries and components Utilise CI/CD tools (e.g., GitLab) to monitor and ensure software quality and security Deploy software systems across various environments, including public (AWS More ❯