13 of 13 Contract Code Quality Jobs in London

Salesforce Lead Developer

Hiring Organisation
Cpl Life Sciences
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£350 - £390 per day
team delivering enhancements to a Salesforce org used by both internal and external users. This role combines senior-level development capability with technical governance, code quality ownership, and delivery leadership. The successful candidate will lead by example: designing, building, reviewing, and deploying Salesforce solutions while ensuring alignment … development across Apex, Lightning Web Components, configuration, and integrations where required. Conduct Proofs of Concept (POCs) to validate technical approaches and de-risk delivery. Code Quality & Standards Own code quality across the team, ensuring adherence to Salesforce best practices and FCA development standards. Review ...

Senior Golang Engineer

Hiring Organisation
PCR Digital
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day Inside IR35
such as Docker and Kubernetes , and microservice architecture Experience with CI/CD, IaaS and DevOps best practices Strong test-driven approach to writing code Excellent problem-solving skills Excellent written and verbal communication skills across multiple levels Preferred Qualifications Bachelor's degree in computer science (or similar) 7+ … with AI/ML and LLM's Experience with application tracing , monitoring , analysis and visualizations through analytics dashboards Passion for high-quality code, tests, CI/CD, documentation, and production services Track record of driving improvements in code quality, performance , etc. Experience leveraging ORMs ...

Senior Backend Engineer Golang - Security

Hiring Organisation
PCR Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£600 - £650 per day + Inside IR35
such as Docker and Kubernetes , and microservice architecture Experience with CI/CD, IaaS and DevOps best practices Strong test-driven approach to writing code Excellent problem-solving skills Excellent written and verbal communication skills across multiple levels Preferred Qualifications Bachelor's degree in computer science (or similar) 7+ … with AI/ML and LLM's Experience with application tracing , monitoring , analysis and visualisations through analytics dashboards Passion for high-quality code, tests, CI/CD, documentation, and production services Track record of driving improvements in code quality, performance , etc. Experience leveraging ORMs ...

Tech Lead - Java and React

Hiring Organisation
Develop
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£650 - £850 per day
delivery performance, and play a key role in a business-critical international rollout. You'll be leading a nearshore engineering team, driving improvements in code quality, delivery velocity, and engineering standards while working closely with senior stakeholders across global teams. This isn't a passive leadership role … need someone who can lead from the front, get into the code, and make an immediate difference. What You'll Be Doing Leading and mentoring a nearshore development team Driving engineering best practices and code quality Improving team performance and delivery pace Collaborating with global product ...

Senior Developer

Hiring Organisation
Tiro Partners
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/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 Full Stack Developer

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £600 per day
C# Frontend development with TypeScript and React Working within Azure (Functions, Azure SQL, Service Bus, ADF) Contributing to architecture discussions, technical design, and code reviews Applying pragmatic AI-assisted/agentic engineering practices to improve delivery quality and velocity Supporting development of financial modelling platforms, including areas … simulation engines, forecasting tools, or financial projection systems Comfortable owning features end-to-end and making sensible technical trade-offs High standards around code quality, testing, and maintainability Experience working in regulated or accuracy-critical environments Contract details Up to £600 per day Outside IR35 Fully remote ...

Senior KDB+ Developer

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract
improvement through refactoring, performance benchmarking, and adoption of best practices. Mentor and guide junior and mid-level developers, fostering a culture of technical excellence, code quality, and knowledge sharing. Participate in design reviews, production support, and root cause analysis of complex system issues. Work collaboratively within … process communication mechanisms in kdb+ and integration with external systems. Experience tuning kdb+ systems for low latency and high availability. Familiarity with data quality checks, validation frameworks, and operational resilience patterns. Exposure to financial markets data (e.g., market data, trading, risk, or post-trade workflows, equity asset class ...

Android Developer

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
develop, test, and maintain libraries and applications that support the delivery of native Android apps for the bank. You'll also oversee the quality of work, ensuring it meets exacting standards. This role is based in London. This role will be Via Umbrella. Working in a Hybrid Model … phases of the software delivery lifecycle and established software development methodologies. Extensive experience writing unit and integration tests, along with familiarity with automated code quality tools, visual regression tools, and test-driven development. A deep understanding of Android accessibility guidelines and both automated and manual accessibility testing ...

Android Developer

Hiring Organisation
Lorien
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
develop, test, and maintain libraries and applications that support the delivery of native Android apps for the bank. You'll also oversee the quality of work, ensuring it meets exacting standards. This role is based in London. This role will be Via Umbrella. Working in a Hybrid Model … phases of the software delivery life cycle and established software development methodologies. Extensive experience writing unit and integration tests, along with familiarity with automated code quality tools, visual regression tools, and test-driven development. A deep understanding of Android accessibility guidelines and both automated and manual accessibility ...

Senior Java Engineer - Payments (ICON IPF)

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Architect & Build: Develop high-performance payment engines that are scalable, secure, and resilient. Collaborate: Act as a technical bridge between the code and major banking stakeholders. Solve Complexities: Navigate the nuances of asynchronous messaging and complex financial workflows. Lead by Example: Mentor junior peers and maintain high standards … code quality and documentation. About You You have a proven track record in the banking sector, specifically working on large-scale digital transformations. You are a proactive communicator who can explain complex 'under-the-hood' logic to non-technical partners. You thrive in hybrid environments , enjoying ...

Senior Firmware Engineer (Contract)

Hiring Organisation
Avanti Recruitment
Location
London, United Kingdom
Employment Type
Contract
working closely with hardware teams to deliver robust, high-quality firmware solutions. The role involves a mix of new development, porting existing code, debugging, and system optimisation. Key Responsibilities Design, develop, and maintain embedded firmware Work with existing codebases, including porting and refactoring Debug complex issues across … software and hardware Collaborate closely with hardware engineers on system integration Contribute to architecture decisions and code quality Key Requirements Strong experience in embedded firmware development Proficiency in C and/or C++ Experience with RTOS (e.g. FreeRTOS) and some bare-metal development Knowledge of communication protocols ...

Front End Web Developer

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
organisation to recruit a Front End Web Developer on a contract basis. Role * The Front End Web Developer will develop and maintain high-quality, responsive user interfaces using React, modern JavaScript, HTML, and CSS. * Build scalable, component-based front-end architectures for single-page applications. * Translate UI/… Optimise application performance and ensure cross-browser compatibility. * Identify, troubleshoot, and resolve front-end issues efficiently. * Follow best practices in front-end development, including code quality, testing, and performance optimisation. * Stay up to date with modern front-end technologies, tools, and CMS-driven architectures. Profile * The Front ...

SIT Test Manager

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£465 - £466/day
phase in alignment with the objectives of the phase. The SIT Test Manager will be an experienced professional with a strong background in software quality assurance and testing. Key responsibilities will include test plan development and execution, coordination of testing activities and resources, oversight on the defect management ...