14 of 14 Contract Clean Code Jobs in London

Looking for a Senior Java Developer that has worked with Kotlin. The ideal candidate should be passionate about clean code and scalable solutions. This opportunity will allow you to design robust Microservices Architecture, within an automated data-heavy environment. This will be an initial 6 month contract with … DevOps methodologies and scalable CI/CD pipelines Microservices Architecture Exposure to Big Data technologies such as: Kafka, Spark, Hadoop etc Strong understanding of clean code principles Experience working with AWS Cloud Kotlin experience (preferred ...

pipelines using tools such as Jenkins, GitHub Actions, or AWS CodePipeline. Work with containerisation technologies (Docker) and orchestration platforms (ECS/EKS). Ensure code quality through unit, integration, and automated testing. Apply secure coding practices, including OAuth2/JWT authentication and general security best practices. Collaborate with cross … functional teams to deliver high-impact features and improvements. Participate in code reviews, architectural discussions, and continuous improvement initiatives. Required Skills & Experience Strong proficiency in Java, Spring Boot, and modern backend development. Hands-on experience with AWS cloud services (Lambda, API Gateway, DynamoDB, ECS, S3, etc.). Solid understanding ...

data, and design teams to shape solutions Supporting live services, including monitoring, troubleshooting, and optimisation Contributing to CI/CD pipelines and infrastructure as code Writing clean, testable, maintainable code Participating in code reviews, pairing, and team delivery Tech Stack & Environment Backend: Scala, Java (Python desirable … with data platforms or risk/fraud systems How You'll Work Deliver value iteratively and early Collaborate closely across disciplines Write simple, maintainable code Take ownership of services end-to-end Continuously improve systems and team practices Reasonable Adjustments: Respect and equality are core values to us. ...

where appropriate Use AI tools to improve engineering productivity - while maintaining full accountability for quality, safety, and correctness Review, validate, and guide AI-generated code and outputs , ensuring they meet real engineering and operational standards Build services in TypeScript and Python , supported by strong testing and clean code practices Package, deploy, and operate workloads using Kubernetes (eg Helm) and Infrastructure as Code (eg Terraform) Work closely with other engineers, platform teams, and AI specialists to deliver integrated, end-to-end solutions Take responsibility for systems running in production , not just code that passes a build ...

Strong background as a Senior or Lead Software Engineer, Lead DevOps Engineer , or similar hands-on leadership role Excellent software engineering fundamentals: system design, clean code, testing, and long-term maintainability Deep experience designing and delivering API-driven and microservice-based systems Proven ability to modernise or integrate ...

Hibernate development practices Proven ability to build microservices and reliable RESTful APIs Hands-on experience applying TDD and BDD testing approaches Good understanding of clean coding principles, SOLID, and cloud technologies Previous experience in Finance/Fintech/Payments is highly beneficial Key Responsibilities Design, implement, and thoroughly test ...

lead engineering and design discussions. Experience working on medium to high complexity systems with minimal supervision. Strong understanding of quality-driven development, including clean code and maintainable design. Ability to collaborate effectively within a team and mentor junior engineers. Reasonable Adjustments: Respect and equality are core values ...

space. This is a craft-led role for a developer who cares as much about visual quality, motion and storytelling as they do about clean, performant code. You'll be taking beautifully designed concepts and bringing them to life through real-time 3D and interaction-rich web experiences.You ...

data engineering framework Build, enhance, and maintain data pipelines within Snowflake Develop transformations and data models using DBT Orchestrate workflows using Apache Airflow Write clean, modular Python code for data engineering solutions Improve pipeline reliability, performance, and observability Introduce and embed CI/CD, testing, and deployment best ...

/.NET services that underpin risk, collateral, and securities-financing platforms Building and integrating RESTful APIs to connect with upstream and downstream systems Delivering clean, maintainable, object-oriented code aligned with engineering best practices Supporting risk-related workflows, including exposure calculations, limits monitoring, and reporting Working with large … with C# and modern .NET frameworks Background in Financial Services technology, ideally within risk, financing, or trading environments Strong grounding in object-oriented design, clean coding practices, and scalable architecture Proven ability to design, build, and integrate RESTful APIs Solid experience working with SQL databases and optimising data-driven ...

Ansible Collaborate with DevOps teams to implement and maintain CI/CD pipelines Manage cloud-based infrastructure and containerized applications (Docker/Kubernetes) Write clean, efficient, and reusable code following best practices Troubleshoot, debug, and optimize application performance Ensure security, scalability, and reliability of systems ...

disk I/O, and network considerations across kdb+ processes. Develop robust and reusable q libraries, utilities, and frameworks with a strong focus on clean, maintainable, and performant code. Drive continuous 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 an Agile or iterative delivery environment, contributing to design, implementation, testing, and release phases. Required Skills & Experience 8+ years of hands ...

based platforms. Apply functional programming principles and Domain-Driven Design (DDD) to create maintainable, testable, and well-structured codebases. Participate actively in Agile ceremonies, code reviews, and continuous improvement initiatives to enhance delivery quality and team effectiveness. Essential Skills Strong proficiency in Scala development with a focus on writing … clean, efficient, and reliable code. Solid experience with functional programming principles and their practical application in production systems. Hands-on experience designing and building high-performance, distributed systems. Practical understanding of high-performance system patterns, including event-driven and low-latency architectures. experience working within Agile delivery teams ...

next iteration of products. Work collaboratively across our missions to define and continually improve our testing strategy for new and existing products. Develop clean, elegant, and reusable code that is easy to maintain and extend. Build scalable automated testing systems that enable us to ship value to customers ...