21 of 21 Contract Code Quality Jobs in London

Senior AWS Platform Engineer (Build and Release)

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £545/day
customers. Responsibilities CI/CD Pipeline Design & Management: - Architect and maintain scalable CI/CD pipelines using GitHub Actions. Integrate SonarQube for code quality analysis and enforce quality gates. Manage JFrog Artifactory for artifact storage, versioning, and dependency management. Ensure pipelines support multi-environment deployments … Integration: - Automate build, test, and deployment workflows for microservices and containerized applications. Embed security and compliance checks into pipelines (DevSecOps). Implement Infrastructure as Code (IaC) for pipeline and environment provisioning using Terraform or AWS CDK. Quality & Governance: - Define and enforce coding standards and quality ...

Guidewire ClaimCenter Developer

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£250 - £340 per day
within our InsuranceSuite platform. You will be responsible for the full development lifecycle from gathering requirements with stakeholders to executing technical integrations and ensuring code quality through rigorous testing. Key Responsibilities Development: Design and implement customizations using Gosu to enhance ClaimCenter workflows, business rules, and data models. … between ClaimCenter and external third-party systems. Collaboration: Partner with Business Analysts and QA teams to translate functional requirements into high-performing technical solutions. Code Quality: Participate in peer code reviews, perform unit testing, and troubleshoot complex technical issues to ensure platform stability. Mentorship: Provide technical ...

Senior Full Stack Engineer FX e Trading London

Hiring Organisation
Atrium Global
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £750 to £900 per day
endfrom UI and desktop container experiences to low-latency backend services. Lean into the latest AI coding tools to accelerate delivery, strengthen code quality, and enhance developer experience. 4 days onsite in London. PAYE/Umbrella options. Lead design and development of full-stack features: React/… trading workflows. Optimize latency, throughput, and reliability across the stack; instrument observability (metrics, tracing, logging) and performance profiling. Establish engineering best practices: code standards, testing strategies (unit/integration/E2E), CI/CD, secure coding, and release management. Mentor engineers through code reviews, design sessions, and hands ...

Senior Full Stack Engineer – FX e-trading – Java / React

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£759 - £900 per day
from UI and desktop container experiences to low-latency backend services. Lean into the latest AI coding tools to accelerate delivery, strengthen code quality, and enhance developer experience. What you’ll do Lead design and development of full-stack features: React/TypeScript web apps, desktop container … trading workflows. Optimize latency, throughput, and reliability across the stack; instrument observability (metrics, tracing, logging) and performance profiling. Establish engineering best practices: code standards, testing strategies (unit/integration/E2E), CI/CD, secure coding, and release management. Mentor engineers through code reviews, design sessions, and hands ...

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
from UI and desktop container experiences to low-latency backend services. Lean into the latest AI coding tools to accelerate delivery, strengthen code quality, and enhance developer experience. What you’ll do Lead design and development of full-stack features: React/TypeScript web apps, desktop container … trading workflows. Optimize latency, throughput, and reliability across the stack; instrument observability (metrics, tracing, logging) and performance profiling. Establish engineering best practices: code standards, testing strategies (unit/integration/E2E), CI/CD, secure coding, and release management. Mentor engineers through code reviews, design sessions, and hands ...

Senior Developer

Hiring Organisation
Tiro Partners Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
demonstrate what's possible when AI is deeply integrated throughout the software development lifecycle, working with the latest AI technologies including Claude Code, GitHub Copilot, MCP, LLMs. Senior Software Engineer will: Develop and maintain software applications using Java Implement AI solutions to enhance software functionality and accelerate development workflows … Collaborate with cross-functional teams to define, design, and ship new features Leverage AI technologies throughout the development lifecycle Participate in code reviews and maintain code quality standards Modernise legacy services using AI-first approaches The ideal experience: 6+ years of experience in software development Strong ...

Senior Ruby Developer - EU Based

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
within a cloud-native architecture Collaborating with product, cloud, and DevOps teams to deliver high-impact functionality Contributing to technical decisions, best practices, and code quality improvements Integrating third-party services and APIs within a complex insurance environment Supporting ongoing migration, modernisation, and cloud optimisation initiatives What ...

BY WMS Sr. Engineer

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £475 to £500 per day
deliver defect fixes in a timely manner, ensuring minimal business disruption. Create and execute detailed test plans, thoroughly document results, and ensure high-quality software delivery. Contribute actively to project ceremonies, including daily stand-ups, cross-functional discussions, and design reviews. Provide regular progress updates to lead engineers ...

Tech Lead - Data Analytics & Data Engineering (AWS) - SC+NPPV3

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £600 per day
using S3, AWS Glue, and Redshift Owning data architecture decisions, including data modelling, partitioning strategies, and performance optimisation Defining and enforcing engineering standards across code quality, testing, CI/CD, IaC, and observability Building and optimising ELT/ETL pipelines using Glue (PySpark) , Lambda, Step Functions … patterns Championing security-by-design in collaboration with security and assurance teams (IAM, KMS, encryption, auditability) Implementing CI/CD pipelines and Infrastructure as Code using Terraform or CloudFormation About You Essential experience: Active SC and NPPV3 clearance (both required) Proven experience as a Tech Lead or Lead Data ...

BY WMS Engineer

Hiring Organisation
LA International Computer Consultants Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
deliver defect fixes in a timely manner, ensuring minimal business disruption. * Create and execute detailed test plans, thoroughly document results, and ensure high-quality software delivery. * Contribute actively to project ceremonies, including daily stand-ups, cross-functional discussions, and design reviews. * Provide regular progress updates to lead engineers ...

Python Data Engineer

Hiring Organisation
Brightbox GRP Ltd
Location
East London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £458 per day, Benefits remote
towards Python software engineering rather than traditional ETL-only work. The successful candidate will be someone who writes clean, maintainable, and well-tested Python code, and is comfortable treating data pipelines as production-grade software. A significant portion of the work involves designing and maintaining complex, test-driven Python … data flows, with PySpark used as the execution engine rather than the primary focus. Strong Python fundamentals, testing discipline, and code quality are critical to success in this role. What youll be doing Designing and building scalable data pipelines with a Python-first approach Developing complex data ...

iOS Developer

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
From £400 to £450 per day
experience. Ensure the performance, quality, and responsiveness of applications Collaborate with a team to define, design and implement app features Participate in code reviews, providing and receiving constructive feedback to enhance the overall codebase quality. Helps in Maintain code quality, integrity and organization while … implementing design patterns and architectural principles. Conduct thorough testing and debugging to ensure the applications meet high-quality standards Troubleshoot and correct bottlenecks and fix bugs related to app performance, functionality, and integration Stay up to date with the latest iOS technologies, trends, and best practices Your Profile ...

Senior Quantitative Developer

Hiring Organisation
Vallum Associates Limited
Location
London, United Kingdom
Employment Type
Contract
Collaborate with quants, traders, and technology teams to productionise research Troubleshoot complex production issues and drive continuous performance improvements Adhere to best practices for code quality, testing, and version control using Git Required Skills & Experience Expert-level development experience in C and/or C++ Strong hands ...

Senior Software Engineer

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £700/day Inside IR35
flows and webchat functionalities. Collaboration at Its Best : Work closely with cross-functional teams to seamlessly integrate AI capabilities into our contact center solutions. Code with Purpose : Write clean, efficient, and maintainable TypeScript code that drives our software forward. Champion DevOps : Implement and advocate for best practices … DevOps, including CI/CD pipelines, automated testing, and infrastructure as code. Quality Assurance : Lead and participate in code reviews to ensure our code is top-notch and adheres to industry standards. Problem Solving : Troubleshoot and resolve complex technical issues across various areas of the software ...

Lead Developer

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £522 per day
deployed on AWS PaaS Collaborate with cross functional teams on design, development, and testing Provide technical leadership & mentorship to developers. Ensure best practices in code quality, testing, and deployment Participate in architectural discussions and decision-making Conduct code reviews and provide constructive feedback ...

Guidewire ClaimCenter Developer

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 250 - 340 Daily
within our InsuranceSuite platform. You will be responsible for the full development lifecycle from gathering requirements with stakeholders to executing technical integrations and ensuring code quality through rigorous testing click apply for full job details ...

AI Engineer - Contract

Hiring Organisation
VIQU IT Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - 650 per day
with cross-functional teams to translate requirements into technical solutions Support model evaluation, performance tuning, and monitoring in production Contribute to best practices around code quality, testing, and scalability Required Experience: Proven experience as an AI Engineer or Machine Learning Engineer Advanced Python skills with experience ...

Senior Full Stack Engineer - FX e-Trading

Hiring Organisation
Pontoon
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£900/day
into robust technical solutions. Optimise system performance, latency, and reliability for real-time trading. Mentor and support other engineers, sharing best practices and driving code quality. Leverage AI-assisted development tools to accelerate delivery and maintain high-quality code. What we're looking for Strong experience ...

Lead Back-End Software Developer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £600 per day
distributed teams across the UK and Europe, they are building scalable platforms that support a variety of customer-facing and internal products. Engineering quality, strong technical leadership, and delivery excellence are central to their transformation. Contractors join at a time when technical ownership is expanding in-house, creating … platform that underpins wider services.* Mentor engineers and drive engineering best practice across the backend team.* Accelerate delivery by improving patterns, processes, and overall code quality. The Role and Deliverables: * Lead development within the Commercial Data Manager, delivering new functionality and scaling existing services.* Take full ownership ...

Java Developer - AI first development

Hiring Organisation
Harvey Nash
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
microservices. Deep understanding of legacy migration strategies and service decomposition. AI/LLM Implementation Skills Hands-on experience with AI development tools (e.g., Claude Code, GitHub Copilot) and Model Context Protocol (MCP). Experience integrating AI into CI/CD pipelines and building AI-powered automation. Knowledge of prompt … engineering, model selection, and LLM capabilities. Proven AI Impact Demonstrated success in using AI to improve productivity and code quality. Experience with AI-assisted refactoring, test generation, and documentation at scale. Please apply within for further details - Matt Holmes, Harvey Nash ...

Java Developer - AI/Modernisation Project

Hiring Organisation
Harvey Nash
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £575 per day
microservices. Deep understanding of legacy migration strategies and service decomposition. AI/LLM Implementation Skills Hands-on experience with AI development tools (e.g., Claude Code, GitHub Copilot) and Model Context Protocol (MCP). Experience integrating AI into CI/CD pipelines and building AI-powered automation. Knowledge of prompt … engineering, model selection, and LLM capabilities. Proven AI Impact Demonstrated success in using AI to improve productivity and code quality. Experience with AI-assisted refactoring, test generation, and documentation at scale. Please apply within for further details - Matt Holmes, Harvey Nash ...