1 to 25 of 98 Contract Java Jobs in London

Application Solution Architect- Payments

Hiring Organisation
McGregor Boyall
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Docker, Kubernetes). Proficiency in AI technologies and their practical application within financial services. Strong understanding of application architecture in modern development languages, including Java, .NET (C#), Python, and JavaScript/TypeScript frameworks (e.g., Angular, React). Experience working on initiatives delivering regulatory-driven changes (e.g., PSD2 ...

Principal Developer / Architect

Hiring Organisation
IntaPeople
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 550 - 620 Daily
Strong background in distributed, cloud native, and data intensive systems. Deep AWS experience (essential). Strong data modelling and data architecture skills. Expertise in Java, Spring Boot, REST/event driven services; good knowledge of Angular/Node.js. Solid understanding of CI/CD, IaC (Terraform/CloudFormation), containers (Docker ...

Principal Developer / Architect

Hiring Organisation
IntaPeople
Location
Remote, Sutton South, Greater London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £620/day
Strong background in distributed, cloud‑native, and data‑intensive systems. Deep AWS experience (essential). Strong data modelling and data architecture skills. Expertise in Java, Spring Boot, REST/event‑driven services; good knowledge of Angular/Node.js. Solid understanding of CI/CD, IaC (Terraform/CloudFormation), containers (Docker ...

Lead Java Developer

Hiring Organisation
Response Informatics
Location
Croydon, Surrey, South East, United Kingdom
Employment Type
Contract
Contract Rate
Up to £500 per day
About the Role: We are seeking a highly skilled Lead Java Developer to join our team and work on a large-scale public sector program. This unique development opportunity involves creating and implementing solutions for our portfolio of biometric products, supporting live systems, and diagnosing incidents. You will be part … collaborative team that prides itself on engineering the best possible Java code. Key Responsibilities: Develop and implement solutions for biometric products. Support live systems and diagnose incidents. Collaborate with the team to ensure high-quality Java code. Essential Skills and Experience: Proficiency in Java 17+, Spring Boot, Spring DataJPA, Spring ...

Java Developer

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £420/day up to £420 pd (inside IR35)
Java Developer - Active SC, Java, REST Up to £420 per day (Inside IR35) London/Remote 6 months My client is an instantly recognisable Consultancy who are hiring a Java Developer with Active SC Clearance (Security Cleared), Java, ReactJS and NodeJS skills to work with a high profile end client. … Requirements: Must have Active SC Clearance Strong experience in Java 1.8+ application development. Expertise in ReactJS and NodeJS for web applications. Spring/Spring Boot development. Proficiency in Test Driven Development and design patterns for modular, reusable code. Knowledge of REST APIs, asynchronous messaging, and database integration. Familiarity with continuous ...

Application Solution Architect - Corporate Payments

Hiring Organisation
Adecco
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
microservices architectures , cloud platforms (AWS/Azure/GCP), and integration technologies. Experience with DevOps, CI/CD, containerisation , and modern development languages (Java, .NET, Python, JS frameworks). Ability to translate complex architecture for technical and non-technical stakeholders . 10+ years' experience in Banking/Financial Services technology. ...

Platform Engineer - Active SC, Oracle, Java

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day Up to £550 per day - Inside IR35
Platform Engineer - Active SC, Oracle, Nginx Up to £550 per day - Inside IR35 Hybrid 6 months My client is an instantly recognisable consultancy who urgently require a Platform Engineer with Active SC Clearance for an ...

Application Security Engineer

Hiring Organisation
Atrium Global
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £550 to £650 per day
landscape: CVEs, CWEs, common software vulnerability types SAST, SCA, and DAST, including the strengths and weaknesses of each At least one programming language (e.g. Java, Go) At least one major cloud provider (e.g. AWS, GCP, Azure) REST API design HTTP Authentication Linux at the terminal, including scripting and automation (e.g. ...

Contract Software Engineer - eDV Cleared

Hiring Organisation
Searchability NS&D
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £800 per day
client systems. Take part in a 24/7 on-call rota supporting critical national systems. Required Skills & Experience Strong working knowledge of Java programming . Proficiency with Linux operating systems . Solid understanding of DevOps principles and agile delivery. Excellent problem-solving skills and a proactive, team-oriented approach. ...

Senior Azure API Engineer

Hiring Organisation
Vermillion Analytics
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £750/day
Azure Deep expertise in Azure API Management Strong OpenAPI, RESTful API design, and security protocols (OAuth 2.0, JWT, TLS) Proficiency in Node.js/Java/C# and modern integration patterns Experience with CI/CD, monitoring tools, and DevOps practices Security and quality-first mindset Bonus Points: Azure Databricks, Data ...

Full Stack Engineer (React Native)

Hiring Organisation
NEEV LIMITED
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£75,000
financial platforms. Deeply skilled in software design and architecture, ideally across cloud-native environments (AWS preferred). Proficient in modern development frameworks, such as Java, Python, or Node.js, and familiar with microservices, APIs, and event-driven architectures. Experienced in cloud and infrastructure-as-code technologies, such as Terraform, Kubernetes, Docker ...

Principal Engineer

Hiring Organisation
Hays
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600.0 - £640.0 per day + up to £640 pd (Inside IR35)
stories In-depth knowledge of a fourth-generation programming language (4GL) Strong skills in object-oriented analysis and design (OOAD) Proven experience with C#, Java (Spring Boot, JPA/Hibernate), REST APIs, observability, monitoring, queue technologies, security, and relational databases (especially Postgres). Strong understanding of SOLID principles, microservice development ...

Cloud Security Engineer

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £350 to £400 per day
benchmarks (e.g., CIS, GDPR, PCI-DSS, ISO standards) and industry cloud security standards (e.g., NIST, CSA) Proficiency in coding and workload languages (e.g., Python, Java, .NET) and practical understanding of various cloud models (IaaS, PaaS, SaaS) Excellent documentation, presentation, and analytical skills with the ability to convey technical concepts ...

Test Engineer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £435/day
clearance required Key skills : Write test scripts Proven experience as a Test Engineer, QA Engineer, or similar role Strong scripting or programming skills (e.g. Java, Python, JavaScript, C#, or similar) Hands-on experience with test automation tools/frameworks (e.g. Selenium, Cypress, Playwright, REST Assured, pytest, etc.) Experience testing APIs ...

AWS DevOps / Platform Engineer - DV Cleared

Hiring Organisation
Network IT
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £640/day
/Lambda/EKS and CDK - Awareness of networking and security principles when applied to AWS cloud infrastructure - Docker/Kubernetes - Python/Java - SQL Databases - Integration of 3rd party software - Must be a British Citizen, with DV clearance or a record of DV clearance ...

Neo4j Developer / Graph Database Specialist

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
with other data platforms or applications. Knowledge of software development best practices, including version control, testing, and deployment. Proficiency in relevant programming languages (e.g., Java, Python, or JavaScript). Excellent problem-solving skills and attention to detail. Strong communication skills and ability to work collaboratively in a team. Preferred Qualifications ...

Senior Platform Software Engineer - Mobile Apps

Hiring Organisation
ARM
Location
Stratford, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £540/day
backend and frontend teams - Ensure UX alignment with platform conventions Community - Share best practices - Define coding standards - Identify cross-product opportunities Essential Skills & Experience - Java/Kotlin with Spring and Spring Boot - Google Cloud Platform (Cloud Run, Pub/Sub, Secret Manager) - Observability tools (Grafana, Splunk) - REST API design ...

Senior Backend Developer

Hiring Organisation
GTC Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £700/annum
creation of scalable, reusable backend solutions for future projects. Essential Skills & Experience Strong experience in backend development within microservices environments . Proficiency in modern Java or Kotlin . Experience designing and implementing secure APIs . Strong hands-on experience with AWS services , including deployment, hosting, and service management. Experience building ...

Automation Tester

Hiring Organisation
FDM Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
keenly interested in gaining experience in Automated testing using common frameworks including Spring boot, Phyton and Selenium Possess strong programming language expertise in Java and Spring boot Familiar with agile software development especially SCRUM Good communication skills Concisely able to write and maintain technical documentation Comfortable with taking responsibility ...

Mobile App Experience Layer Engineer

Hiring Organisation
ARM
Location
Stratford, London, United Kingdom
Employment Type
Contract
Contract Rate
£508 - £548/day Inside IR35
backend and frontend teams - Ensure UX alignment with platform conventions Community - Share best practices - Define coding standards - Identify cross-product opportunities Essential Skills & Experience - Java/Kotlin with Spring and Spring Boot - Google Cloud Platform (Cloud Run, Pub/Sub, Secret Manager) - Observability tools (Grafana, Splunk) - REST API design ...

AI Consultant (Urgent)

Hiring Organisation
Morson Edge
Location
South West London, London, United Kingdom
Employment Type
Contract
Engineering, or a related field, with significant hands-on experience in AI, machine learning, or data science projects. Strong programming skills such as Python, Java, C#, or JavaScript are required, along with experience in solution architecture, cloud platforms (Azure, AWS, GCP), and web frameworks. Familiarity with automation tools such ...

Palantir Foundry Software Engineer -6+ Months - Freelance

Hiring Organisation
Global Enterprise Partners
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
data modelling, pipelines, data quality). Experience with end-to-end data management, governance, and access control. Coding experience in Python and/or Java/Scala/TypeScript, plus SQL and Git. Comfortable working in fast-paced, agile environments with high ownership. Extra: Former Palantir and experience ...

FX e Trading Senior Full Stack Engineer (React TypeScript + Java)

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£759 - £900 per day
Contract Role – FX e Trading Senior Full Stack Engineer (React TypeScript + Java) – London/Hybrid – 12 months initial – Inside IR35 As a FX e Trading Senior Full Stack Engineer (React TypeScript + Java) as a technically strong, hands-on engineer who understands both trading workflows and modern full-stack … lead delivery of a mission-critical trading platform. Role Overview: Job Title: FX e Trading Senior Full Stack Engineer (React TypeScript + Java) Location: Hybrid – up to 4 days onsite per week in London Contract Type: Contract Duration: 12 months initial Rate: £759.49 – 900 per day (Inside IR35) Sector: Banking ...

Fullstack Developer

Hiring Organisation
Experis
Location
South Croydon, London, United Kingdom
Employment Type
Contract
Contract Rate
£520 - £521 per day
year Location: remote with occasional travel to Croydon Inside IR35 - Umbrella only Active SC clearance required, eligible candidates will be considered Required Skills: Java Kafka Nice to Have Skills: Spring (Framework, Boot, Data) Postgres OpenSearch/ElasticSearch NodeJS Rest API Wiremock (API mocking) Suitable Candidates should submit ...

Fullstack Developer

Hiring Organisation
Experis
Location
South Croydon, Surrey, United Kingdom
Employment Type
Contract
Contract Rate
GBP 520 - 521 Daily
year Location: remote with occasional travel to Croydon Inside IR35 - Umbrella only Active SC clearance required, eligible candidates will be considered Required Skills: Java Kafka Nice to Have Skills: Spring (Framework, Boot, Data) Postgres OpenSearch/ElasticSearch NodeJS Rest API Wiremock (API mocking) Suitable Candidates should submit ...