7 of 7 Contract Open Source Jobs in London

FOSS SME

Hiring Organisation
Talent Smart Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 750 Daily
Role Summary We are seeking an experienced Free and Open Source Software (FOSS) Licensing Subject Matter Expert to support a large-scale engineering organisation within a complex technology environment. This contract role sits within a Cloud and Shared Services Engineering function and plays a critical part in enabling … engineering teams to deliver software securely, at pace, and in line with open-source licensing obligations. You will provide hands-on expertise across FOSS governance, licensing analysis, tooling, and controls, working closely with engineering, platform, tooling, and legal teams. This role is suited to a seasoned specialist ...

Full Stack Developer

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
based The Full Stack Developer will be responsible for the development and testing of a full stack web application using modern Microsoft and Open-source technology Profile Full stack web development using Microsoft and open-source technologies Backend C# development Frontend Angular/JavaScript/TypeScript ...

Lead Java Developer

Hiring Organisation
Response Informatics
Location
Croydon, Surrey, South East, United Kingdom
Employment Type
Contract
Contract Rate
Up to £500 per day
Jenkins, SonarQube, and Stash Repository. Experience developing in a Linux development environment. Experience working with a suite of Atlassian products. Experience working with open-source database management systems like PostgreSQL. Experience working with AWS services (EC2, SQS, RDS, DynamoDB, S3, Route53, KMS,Cloudwatch). Monitoring using Grafana. Agile ...

Senior Go Developer

Hiring Organisation
Fruition Group
Location
London, United Kingdom
Employment Type
Contract, Work From Home
focused approach, ideally within fast-paced tech organisations (start-ups or scale-ups) Knowledge of Kafka, Cassandra, gRPC, and microservices is a strong advantage Open-source contributions are beneficial If you're a Senior Go Developer looking for a challenging 6-month contract with a forward-thinking tech ...

AI Developer/Engineer

Hiring Organisation
Damia Group Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £650 per day
What you will bring to the team Fine-tune Large Language Models (LLMs) and other generative architectures. Optimise pre-trained models (OpenAI, Anthropic, or open-source LLMs) for business use cases using prompt engineering and reinforcement learning. Experiment with model configurations to balance performance, cost, and scalability. Build ...

Lead Infrastructure Engineer

Hiring Organisation
SUMMER-BROWNING ASSOCIATES LIMITED
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £0.00 per day + Excellent Day Rate
Lambda) Experience in multiple scripting and programming languages, such as Shell scripting, JavaScript, Node.js, and Python. Knowledge of linux/unix OS and open source ecosystem Experience of building and maintaining CI/CD pipelines and tools (GitHub etc) Experience in leveraging Infrastructure as Code (IaC) tools, particularly ...

AI Researcher

Hiring Organisation
Lorien
Location
City of London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
LLMs, or multimodal AI. Understanding of ML concepts such as training, fine-tuning, optimisation, evaluation, and model drift. Experience building or adapting ML models (open-source or proprietary). Ability to design structured experiments and interpret model behaviour through metrics and analysis. Curiosity for emerging topics ...