376 to 400 of 1,229 Permanent Open Source Jobs

Lead Site Reliability Engineer (Kubernetes Required) - Hybrid

Location
Greater London, England, United Kingdom
FactSet creates flexible, open data and software solutions for over 200,000 investment professionals worldwide, providing instant access to financial data and analytics that investors use to make crucial decisions. At FactSet, our values are the foundation of everything we do. They express how we act and operate, serve … Ability to work effectively under pressure, particularly during incident response Commitment to a blameless culture and continuous learning Nice to Have Experience contributing to open-source projects Familiarity with SRE principles as defined by the Google SRE handbook Previous experience in a DevOps or Platform Engineering role Company ...

AI Researcher

Hiring Organisation
Thales
Location
Reading, Berkshire, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
technical audiences. Curious, creative and intellectually rigorous, with the ability to challenge constructively and develop novel solutions to ambiguous problems. Encourages an open environment where ideas are shared, technical debate is welcomed and innovation thrives. Desirable PhD or equivalent research experience in Artificial Intelligence, Machine Learning, Computer Science, Mathematics … Engineering, Physics or a related discipline. Peer-reviewed publications, patents, invention disclosures, open-source contributions or recognised technical innovations. Experience with governance of architecture, research designs or detailed technical designs throughout the project lifecycle. Experience with large-scale data initiatives, data labelling strategies, synthetic data generation and data ...

Software Engineer - Confluent Cloud Platform (United Kingdom)

Location
Hursley, England, United Kingdom
gRPC-based Familiarity with infra such as networking, storage, and security in data centres Hands-on experience with Kubernetes operators, Helm, or StatefulSets Open source contributions to Kubernetes sigs or adjacent projects Experience with PBT, TDD, and pair programming. ABOUT BUSINESS UNIT IBM Software infuses core business operations … trust and support in an environment where everyone can thrive whatever their personal or professional background. Our IBMers are growth minded, always staying curious, open to feedback and learning new information and skills to constantly transform themselves and our company. They are trusted to provide on-going feedback ...

HSS - Cloud Platform Developer

Location
United Kingdom
such as using Azure/AWS as well as datacentre/private cloud to deliver high availability, rapidly developed, fully automated solutions using predominately open-source software which delivers value to the customer.**Role responsibilities:*** Interacting with project roles as required, to gain an understanding of the business … database schemas and query languages.* Experience with infrastructure as code and CI/CD pipelines e.g., Jenkins, Terraform, Concourse, Team City etc.* Knowledge of source control technologies, e.g. Bitbucket, Git, Subversion, etc.* An understanding of how to deploy and configure AWS components to adhere to tight security requirements.* Awareness ...

Senior Applied AI Engineer (Defence Contractor)

Location
United Kingdom
operators can interrogate complex information at speed and make better decisions under pressure. AVISTM powers our digital decision products, such as ORION for multi-source decision-to-effect, and it powers our physical platforms. We work where wrong decisions can be catastrophic. We partner with defence, security and private … agentic systems Familiarity with secure‐by‐design development principles (ISO 27001, NIST, OWASP) Experience in defence, national security, or similarly regulated environments Contributions to open‐source AI/ML projects An active SC or DV clearance is a strong advantage for this role. Why This Role? This ...

Senior Applied AI Engineer (Defence Contractor)

Location
Greater London, England, United Kingdom
operators can interrogate complex information at speed and make better decisions under pressure. AVISTM powers our digital decision products, such as ORION for multi-source decision-to-effect, and it powers our physical platforms. We work where wrong decisions can be catastrophic. We partner with defence, security and private … agentic systems Familiarity with secure‐by‐design development principles (ISO 27001, NIST, OWASP) Experience in defence, national security, or similarly regulated environments Contributions to open‐source AI/ML projects An active SC or DV clearance is a strong advantage for this role. Why This Role? This ...

Fintech Risk Officer

Hiring Organisation
Booking.com
Location
Amsterdam, Noord-Holland, Netherlands
Employment Type
Permanent
Salary
EUR Annual
GDPR, DMA, DSA) Experience applying regulations across business areas; e-money and payments regs (PSD2) is a plus Hands-on with DevOps and open-source tooling (GitLab, GitHub, Jenkins, Docker, Kubernetes, Terraform, Puppet) Familiarity with designing controls for cloud platforms (AWS; GCP a plus) and data governance ...

Full Stack Software Developer

Location
Newcastle upon Tyne, England, United Kingdom
Laravel framework Understanding of CI/CD pipelines and DevOps practices Experience with testing frameworks and a test-driven development approach Personal or open-source projects that demonstrate your passion for development What We Offer £35,000 – £45,000 salary with regular reviews Genuine career progression into lead ...

Lead Software Engineer, Software Defined Networking

Location
Greater London, England, United Kingdom
Explain technical issues, trends, and approaches to leadership and team members to support informed decision-making Collaborate with vendor partners on integration Engage with open-source communities and industry forums Implement technical methods and best practices aligned with modern product development methodologies Develop reusable software frameworks ...

Senior Storage Architect

Location
Cambridge, England, United Kingdom
also value: Knowledge of GPU compute environments or AI training infrastructure. Experience with monitoring and observability tools (Prometheus, Grafana, etc.). Contributions to open-source storage, data management, or infrastructure projects. Familiarity with object storage systems (S3, RADOS Gateway, MinIO, etc.). A collaborative and supportive work environment. ...

AI Native SW Engineering Specialist / Sr Consultant

Location
Greater London, England, United Kingdom
strategy, vector search, context window engineering and tuning against real quality targets Integrate and abstract across multiple LLM providers - OpenAI, Anthropic, Vertex AI, and open-source models - with fallback routing, token, cost, and latency management Implement LLMOps in production: eval harnesses with real quality metrics, prompt versioning, observability ...

Engineer C# (Full Stack)

Location
City Of London, England, United Kingdom
with observability tools such as OpenTelemetry and Grafana. Experience with Infrastructure as Code (Terraform). Understanding of financial markets or trading systems. Contribution to open‐source projects. Awareness of security principles and DevSecOps practices. Role Band & Level Professional/5 Location United Kingdom – 135 Bishopsgate, London Inclusive Statement ...

Senior QAT (Quality Assurance Tester)

Location
Newcastle upon Tyne, England, United Kingdom
delivering digital services within UK central government or the wider public sector Familiarity with GOV.UK Service Standard expectations and service assessment processes Exposure to open-source LLM tooling or evaluation frameworks Familiarity with AI/ML tooling on AWS, Azure or GCP Diversity and Inclusion At Scrumconnect Consulting ...

Senior AI Engineer - Agentic AI

Location
Greater London, England, United Kingdom
vector databases like Pinecone, Weaviate, Qdrant or pgvector Familiarity with distributed systems, workflow engines (Temporal, Airflow or Dagster) and event-driven architectures Experience with open-source LLMs or Small Language Models for custom deployments Knowledge of AI safety and governance: guardrails, output filtering and red-teaming practices Background ...

Engineering Site Lead

Location
Greater London, England, United Kingdom
experience as a site lead, office lead, or similar multi-team leadership role Background in building infrastructure for LLM training or inference Contributions to open-source infrastructure or AI infrastructure projects Experience scaling teams from 0 to 20+ engineers Active involvement in the London or European tech community ...

Senior Data Scientist

Location
London, United Kingdom
frameworks (MLflow, Kubeflow, Airflow). Familiarity with SQL, NoSQL, and distributed data technologies. Experience deploying AI models in production environments. Publications, patents, or open-source contributions in ML/AI. Benefits What We Offer: Competitive Salary Bonus Scheme Private Healthcare Insurance 25 Days Annual Leave + Bank Holidays ...

Senior Data Scientist

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
frameworks (MLflow, Kubeflow, Airflow). Familiarity with SQL, NoSQL, and distributed data technologies. Experience deploying AI models in production environments. Publications, patents, or open-source contributions in ML/AI. Benefits What We Offer: Competitive Salary Bonus Scheme Private Healthcare Insurance 25 Days Annual Leave + Bank Holidays ...

Senior Data Scientist

Location
Westminster, West End, United Kingdom
frameworks (MLflow, Kubeflow, Airflow). Familiarity with SQL, NoSQL, and distributed data technologies. Experience deploying AI models in production environments. Publications, patents, or open-source contributions in ML/AI. Benefits What We Offer: Competitive Salary Bonus Scheme Private Healthcare Insurance 25 Days Annual Leave + Bank Holidays ...

Senior Machine Learning Engineer

Location
Greater London, England, United Kingdom
productionising machine learning models, with strength in an area such as predictive modelling, classification, regression, optimisation or recommendation systems Strong proficiency in Python and open-source data libraries such as Pandas, NumPy and Scikit-learn A solid grounding in statistical methodologies, along with data extraction, manipulation and feature ...

Principal Architect - AI

Location
Manchester, England, United Kingdom
retail, supply chain, demand planning, or financial planning. Experience leading post-acquisition platform integration or cross-organisation architectural alignment across previously independent products. Open-source contributions to ML infrastructure, data processing, or related ecosystems. Advanced degree in Computer Science, Machine Learning, Statistics, or a related field. Our Commitment ...

Staff Engineer, AI/ML

Location
Greater London, England, United Kingdom
rapid prototypes, and bringing them to production with a focus on measurable ROI. Familiarity with distributed systems and large-scale data processing. Contributions to open-source projects or a strong GitHub portfolio. Thought leadership, any articles or talks you’ve given? High levels of technical curiosity ...

Senior Staff Software Engineer

Location
Belfast, Northern Ireland, United Kingdom
Computer Science or equivalent (education or work based) 7+ years of experience building and supporting scalable, distributed systems using open-source tools Proven hands-on experience with Object Oriented programming languages and with at least 1 scripting language (ex. Java/C++/etc. and Python/Ruby ...

Senior Software Engineer, Training & Experimentation

Location
Greater London, England, United Kingdom
builds the platform that enables developers to experiment at scale and train their own intelligence. Whether customers are training foundation models, fine-tuning open-source models, launching distributed training jobs, or iterating on experiments, this team creates the infrastructure and developer experience that powers every stage ...

Senior Developer WordPress PHP

Location
Greater London, England, United Kingdom
MacOS developer environment. For front-end development, we value a robust understanding of the underlying web technologies. We value well-maintained, open-source tools that can be used to produce semantic HTML, performant CSS and unobtrusive JavaScript and we assess all our services against accessibility criteria. Check ...

AI & Data Architect

Location
London, United Kingdom
data architect (only when needed) with programme languages like Java, Scala, Python, or architecture-as-code such as linkml, turtle, owl Experience with both open source and vendor data platforms Experience with data architecture, architectural concepts, methodologies and approaches Experience with microservices architecture Experience of designing for both ...