1 to 25 of 54 Open Source Jobs in the South East

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 ❯

to Work" please feel free to ask us about the access to work scheme. Desirable Skills Experience using Azure OpenAI and foundational LLMs for Retrieval-Augmented Generation (RAG), including open-source implementations. Experience with LLM architecture (e.g., Transformer, GANs, VAEs), Fine-tuning PEFT/LoRA, Context embedding, Vector database technologies, and Semantic Search techniques & tools. Familiarity with Azure … Python libraries (e.g., PyPDF, Camelot) and OCR tools like Azure Document Intelligence or AWS Textract. Awareness of emerging InsurTech innovations, with the ability to propose creative solutions and adapt open-source models and technologies. What We Will Offer You Recognised and rewarded for a job well done, we have a range of flexible benefits for you to choose More ❯

solution architecture (cloud & on-prem). Develop and deploy ML models into production. Identify AI opportunities aligned with business processes Prototype, test, and optimize AI applications. Stay current with open-source AI/ML frameworks. Communicate AI capabilities and set realistic expectations. Essential Skills & Experience Strong expertise in GenAI, NLP, and ML. Hands-on experience with LLMs/… SLMs, Python, Java, SQL/NoSQL. API development, web scraping, data integration. On-prem AI model deployment, open-source frameworks (e.g. Hugging Face, LangChain). Strong consulting and communication skills. Preferred Knowledge of data structures, algorithms, and solution architecture. Experience with cloud AI platforms (AWS, Azure, GCP). Broad ML knowledge and prior consulting with international teams. Refer More ❯

solution architecture (cloud & on-prem). Develop and deploy ML models into production. Identify AI opportunities aligned with business processes Prototype, test, and optimize AI applications. Stay current with open-source AI/ML frameworks. Communicate AI capabilities and set realistic expectations. Essential Skills & Experience Strong expertise in GenAI, NLP, and ML. Hands-on experience with LLMs/… SLMs, Python, Java, SQL/NoSQL. API development, web scraping, data integration. On-prem AI model deployment, open-source frameworks (e.g. Hugging Face, LangChain). Strong consulting and communication skills. Preferred Knowledge of data structures, algorithms, and solution architecture. Experience with cloud AI platforms (AWS, Azure, GCP). Broad ML knowledge and prior consulting with international teams. Refer More ❯

databases, and Python-based solutions. Prototype and test AI applications, optimizing performance and scalability. Apply backend/data processing skills to handle structured and unstructured datasets. Stay current with open-source AI/ML frameworks (e.g., Hugging Face, LangChain) and apply them to business needs. Communicate technical concepts clearly to technical and non-technical stakeholders. Essential Skills & Experience …/SLM). Proficiency in Python (Pandas, NumPy, Scikit-learn, PyTorch/TensorFlow). Experience with SQL/NoSQL databases, APIs, and data integration. Exposure to on-premise/open-source AI frameworks. Strong problem-solving and communication skills. Preferred Knowledge of data structures, algorithms, and solution architecture. Familiarity with cloud AI platforms (AWS, Azure, GCP). Understanding More ❯

databases, and Python-based solutions. Prototype and test AI applications, optimizing performance and scalability. Apply backend/data processing skills to handle structured and unstructured datasets. Stay current with open-source AI/ML frameworks (e.g., Hugging Face, LangChain) and apply them to business needs. Communicate technical concepts clearly to technical and non-technical stakeholders. Essential Skills & Experience …/SLM). Proficiency in Python (Pandas, NumPy, Scikit-learn, PyTorch/TensorFlow). Experience with SQL/NoSQL databases, APIs, and data integration. Exposure to on-premise/open-source AI frameworks. Strong problem-solving and communication skills. Preferred Knowledge of data structures, algorithms, and solution architecture. Familiarity with cloud AI platforms (AWS, Azure, GCP). Understanding 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 ❯

security in line with ISO27001 and Cyber Essentials Plus Development and maintenance of AI system focused on intelligence analysis and processing Development and maintenance of the data repositories, including source, geospatial and open-source intelligence Liaise with client stakeholders within various defence organisations Requirements: understand how to apply it to improve client operations, specifically situational awareness and 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 ❯

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 ❯

of Product Operating Model Knowledge of Infrastructure as a Code tooling (Chef is essential, Ansible is a plus), containerization knowledge of authentication and biometric system design is highly desired. Open-source experience You may be assessed on the key critical skills relevant for success in role, such as risk and controls, change and transformation, business acumen strategic thinking More ❯

of Product Operating Model Knowledge of Infrastructure as a Code tooling (Chef is essential, Ansible is a plus), containerization knowledge of authentication and biometric system design is highly desired. Open-source experience You may be assessed on the key critical skills relevant for success in role, such as risk and controls, change and transformation, business acumen strategic thinking More ❯

inspire your team & through your delivery of trainings You might also have (Desirable) Experience with ITSM tools (e.g. ServiceNow) TOGAF certified or equivalent experience in enterprise architecture Contributions to open-source software projects Background in scientific/research environments (e.g. computational, physics, biology) Experience in distributed project collaborations (e.g. EC-funded projects) Involvement in scientific publications or authorship More ❯

ForgeRock COTS based IAM solutions (PingGateway, PingAM, PingIDM, PingDS) with embedded security gates, HTTP header signing, access token and data at rest encryption, PKI based self-sovereign identity, or open source You may be assessed on the key critical skills relevant for success in role, such as risk and controls, change and transformation, business acumen strategic thinking and More ❯

on a regular basis (typically every two weeks). What You'll Do Design, develop, and test high-quality software solutions. Work across diverse technologies, with a focus on open-source frameworks and tools. Use CI/CD pipelines (GitLab or similar) to drive secure, reliable, and maintainable code. Deploy applications across a variety of cloud platforms, including More ❯

SQL/NoSQL, and APIs for seamless integration. Prototype and rigorously test AI applications, focusing on improving performance through strategic feature engineering and model optimization. Engage with the latest open-source AI/ML tools to enhance business solutions continuously. Develop, deploy, and manage machine learning models aimed at solving complex real-world business problems. Utilize backend and More ❯

AI architectures, platforms, or internal developer tools. Familiarity with AI orchestration frameworks (LlamaIndex, LangChain, Crew AI, AutoGen, etc.) and best practices for agentic systems. Track record of contributions to open-source AI/ML communities or internal platform accelerators. Background working in environments requiring compliance, security, and governance for AI applications. Exposure to both traditional ML and modern … GenAI systems, with ability to evaluate trade-offs and guide adoption. Why join us? At bp, we provide an excellent working environment and employee benefits! We offer an open and inclusive culture and a great work-life balance. Tremendous learning and development opportunities are available to craft a career path, life and health insurance, medical care package and many More ❯

AI architectures, platforms, or internal developer tools. Familiarity with AI orchestration frameworks (LlamaIndex, LangChain, Crew AI, AutoGen, etc.) and best practices for agentic systems. Track record of contributions to open-source AI/ML communities or internal platform accelerators. Background working in environments requiring compliance, security, and governance for AI applications. Exposure to both traditional ML and modern … GenAI systems, with ability to evaluate trade-offs and guide adoption. Why join us? At bp, we provide an excellent working environment and employee benefits! We offer an open and inclusive culture and a great work-life balance. Tremendous learning and development opportunities are available to craft a career path, life and health insurance, medical care package and many More ❯

AI architectures, platforms, or internal developer tools. Familiarity with AI orchestration frameworks (LlamaIndex, LangChain, Crew AI, AutoGen, etc.) and best practices for agentic systems. Track record of contributions to open-source AI/ML communities or internal platform accelerators. Background working in environments requiring compliance, security, and governance for AI applications. Exposure to both traditional ML and modern … GenAI systems, with ability to evaluate trade-offs and guide adoption. Why join us? At bp, we provide an excellent working environment and employee benefits! We offer an open and inclusive culture and a great work-life balance. Tremendous learning and development opportunities are available to craft a career path, life and health insurance, medical care package and many More ❯

the future of public sector tech. What You'll Be Leading Build and evolve automated test frameworks across UI & API layers Integrate testing into CI/CD pipelines using open-source tools like Selenium & Java Champion agile testing practices : TDD, BDD, ATDD Lead exploratory and non-functional testing : performance, security, accessibility Collaborate with cross-functional teams to refine More ❯

systems. Duties of the Transaction Monitoring Analyst to include: Complex Case Investigation: Conduct in-depth investigations into high-risk fraud and money laundering alerts, using advanced analytical techniques and open-source intelligence to build comprehensive case narratives. SAR Preparation: Draft and finalize thorough Suspicious Activity Reports (SARs) for regulatory reporting, collaborating with the MLRO to ensure all filings More ❯

Plan, Provide & Assure functions Own development and solution architecture targets and roadmaps Allocate tickets to squads and support sprint shaping Provide strategic updates to key stakeholders Explore new libraries, open-source tools, and frameworks to drive efficiencies Mentor and develop teams, arranging training where appropriate Promote data-driven decision-making and agile planning Deliver synergies across both fixed More ❯

Plan, Provide & Assure functions Own development and solution architecture targets and roadmaps Allocate tickets to squads and support sprint shaping Provide strategic updates to key stakeholders Explore new libraries, open-source tools, and frameworks to drive efficiencies Mentor and develop teams, arranging training where appropriate Promote data-driven decision-making and agile planning Deliver synergies across both fixed More ❯

Oxfordshire. This role requires employees to complete an online Baseline Personnel Security Standard (BPSS), including The Disclosure & Barring Service (DBS) checks for criminal convictions and possibly a search of open source data. The Role Are you looking for an exciting opportunity to make a difference? Join our team and contribute to the future of fusion energy. As Senior More ❯

tuning. Strong proficiency in Python, Java, and SQL/NoSQL databases, along with API development and data integration techniques. Practical experience with deploying AI models on-premise and utilizing open-source frameworks such as Hugging Face and LangChain. Qualifications: Bachelors or Masters degree in Computer Science, Data Science, Machine Learning, Engineering, or a related field. Benefits: 25 days More ❯