Contract API Development Jobs in London

5 of 5 Contract API Development Jobs in London

Full Stack Developer

London, South East, England, United Kingdom
Hybrid/Remote Options
Reed
IR35 We are seeking an experienced Full Stack Developer to join our team. The successful candidate will have a proven track record in both front-end and back-end development, with strong skills in Java, Python, and API development. You will be instrumental in building and maintaining scalable, high-quality applications that deliver exceptional user experiences. Day-to … create robust, scalable server-side logic. Implement responsive and visually appealing front-end designs using HTML, CSS, JavaScript, and modern frameworks like React, Angular, or Vue. Design and manage API integrations, ensuring seamless data flow between different software components. Work with SQL and NoSQL databases to store and retrieve application data efficiently. Use version control systems like Git to … Skills & Qualifications: Proven experience as a Full Stack Developer with expertise in both front-end and back-end development. Strong proficiency in Java and Python. Hands-on experience with API development and integration. Solid understanding of HTML, CSS, JavaScript, and modern front-end frameworks (React, Angular, or Vue). Experience with databases (SQL and NoSQL). Familiarity with More ❯
Employment Type: Contractor
Rate: £480 - £500 per day, Inc benefits
Posted:

GenAI Python Developer

London, United Kingdom
Hybrid/Remote Options
EMBS Engineering
environments with tight security controls Experience integrating AI or ML services into real-world applications Knowledge of authentication, secret management, networking, and model access governance Bonus Points For: Kong API Gateway, Kong Mesh, Flux CD AWS stack: EC2, EKS, S3, SQS, DynamoDB, Bedrock RESTful API development with FastAPI, microservices, Terraform, GitOps workflows Prompt evaluation tools such as More ❯
Employment Type: Contract
Rate: £450 - £500/day
Posted:

C# / DataStage ETL Developer - Hybrid - Banking - £960 p/d

London, United Kingdom
Hybrid/Remote Options
GCS
experience Skills required C# .Net Framework and Object Orientated programming concepts. Oracle and SQL server (PL/SQL & TSQL). .NET Core C# and .NET (Windows & Web) development. Web API development DataStage ETL Databricks Key Responsibilities Develop and maintain applications using C#, .NET Framework, and .NET Core for both Windows and Web platforms. Design and implement Web APIs More ❯
Employment Type: Contract
Rate: £600 - £960/day Inside IR35
Posted:

Senior Data Engineer - Azure Databricks/ SC Clearance

London, South East, England, United Kingdom
Hybrid/Remote Options
Crimson
for cleaning, enrichment, and aggregation, ensuring accuracy and consistency across the data lifecycle. Work extensively with Unity Catalog, Delta Lake, Spark SQL, and related services. Apply best practices for development, deployment, and workload optimization. Program in SQL, Python, R, YAML, and JavaScript. Integrate data from relational databases, APIs, and streaming sources using best-practice patterns. Collaborate with API More ❯
Employment Type: Contractor
Rate: £600 - £620 per day
Posted:

AI Developer

City of London, London, United Kingdom
Experis
and Microsoft Copilot Studio. Apply governance frameworks for AI/ML models. Python knowledge to automate processes Large datasets experience, including data preprocessing, feature engineering, and model evaluation. Agile development of AI solution from concept to deployment to continuous improvement. Create and maintain technical documentation Communicate complex concepts to all stakeholders. At least 3 years of experience in AI … solution engineering. Large Language Models experience including prompt engineering and RAG implementations. Expert data analytics, MLOps practices and API development. Desirable knowledge in Docker and Kubernetes More ❯
Employment Type: Contract
Rate: £540 - £585/day
Posted:
API Development
London
10th Percentile
£406
25th Percentile
£435
Median
£508
75th Percentile
£628
90th Percentile
£705