24 of 24 Code Optimisation Jobs in London

with RESTful APIs and third-party services to integrate and enhance system functionality. Database Management: Develop and maintain database architectures (e.g., MongoDB, PostgreSQL, MySQL) for robust data storage solutions. Code Optimization: Write clean, modular, and reusable code, adhering to best practices and design patterns. Testing and Debugging: Conduct unit and integration testing, debug issues, and ensure high-quality … server-side logic and maintain smooth user experiences. Continuous Learning: Stay updated on the latest trends in Node.js and related technologies, applying new knowledge to improve system performance and code quality. Agile Methodology: Participate in Agile development cycles, contributing to sprint planning, code reviews, and continuous delivery. Key Skills/Experience: Experience with building and maintaining RESTful APIs. More ❯

have strong communication skills. You will: Design, develop, and maintain scalable web applications that meet the evolving needs of our users and business. Write clean, efficient, and well-documented code in Python and JavaScript, adhering to best practices and coding standards. Collaborate effectively with cross-functional teams including product management, design, and other engineering disciplines to define, scope, and … implement new features and improvements. Optimise application performance and responsiveness through code optimisation, efficient data management, and infrastructure considerations. Implement robust security and data protection measures to safeguard user data and ensure compliance with relevant regulations. Mentor junior developers by providing guidance, sharing knowledge, and fostering their technical growth. Contribute actively to code reviews , providing constructive feedback … to ensure code quality and consistency across the team. Participate in the full software development lifecycle , from requirements gathering and design to deployment and monitoring. Troubleshoot and resolve technical issues , ensuring the stability and reliability of our web applications. Stay up-to-date with the latest web development trends, technologies, and best practices. What we are looking for: Experience More ❯

to have primary skill and all others should be good to have, because client is expecting the person to be full stack developer, so he should be able to code in Front-end, back-end, build and deploy using AWS. Expertise and Competencies Architecture and Application design, documentation and hands-on implementation. Front End –Angular, TypeScript, JavaScript. – Primary skill … part of digital cloud transformation. Developed tools and applications by writing clean, efficient code. Mentoring junior developers & helping them to solve complex issues & problems. Instrumental in issue resolution, debugging code, code review, code optimization and implementing the best practices. Provided information by collecting, analysing, and summarizing development and service issues More ❯

to have primary skill and all others should be good to have, because client is expecting the person to be full stack developer, so he should be able to code in Front-end, back-end, build and deploy using AWS. Expertise and Competencies Architecture and Application design, documentation and hands-on implementation. Front End –Angular, TypeScript, JavaScript. – Primary skill … part of digital cloud transformation. Developed tools and applications by writing clean, efficient code. Mentoring junior developers & helping them to solve complex issues & problems. Instrumental in issue resolution, debugging code, code review, code optimization and implementing the best practices. Provided information by collecting, analysing, and summarizing development and service issues More ❯

HSA, FSA, and DCFSA account options, and 401k retirement account access with employer matching. Must Haves: Strong Python, C#, .NET development skills – proven ability to write efficient, production-quality code (e.g., data structures, error handling, code optimization). Proficiency in SQL – comfortable designing databases, writing complex queries, and handling performance tuning. Experience with Databricks (or a comparable Spark More ❯

be key to your role, as you help elevate their skills and drive long-term success. Our focus is AWS Serverless & TypeScript, but you'll also consult on legacy code optimisation and replatforming when needed. What we're looking for: Core Skills: - 5 years+ in cloud engineering - Proficient in TypeScript & Node (Python is a plus) - Experience with AWS More ❯

will be well versed in design patterns, software engineering principles, frameworks and technologies Experienced in Object-oriented programming in ES6 and/or TypeScript Experience developing for platforms where code optimisation is essential, e.g. TVs, mobile phones, gaming or embedded devices A BDD and/or TDD approach to writing software (Cucumber, Jasmin, Jest, Cypress) Familiarity with CI More ❯

ML solutions—focusing on advanced generative AI frameworks, large language models, and agentic workflows. Act as a technical leader by mentoring junior team members, providing guidance on best practices, code quality, and architectural design. Drive projects and strategic initiatives, collaborating with product squads and business stakeholders to ensure seamless integration of ML solutions into existing workflows. Develop robust, production … environments. Expertise in containerization (e.g., Docker, Kubernetes, AWS EKS) and building scalable systems in cloud environments. Deep understanding of software development fundamentals, including automated testing, source version control, and code optimization. Excellent communication and collaboration skills to interact with technical teams, business partners, and stakeholders. Bachelor’s degree in machine learning, computer science, data science, applied mathematics, or a More ❯

PyTorch. Expertise in containerization (e.g., Docker, Kubernetes, AWS EKS) and building scalable systems in cloud environments. Deep understanding of software development fundamentals, including automated testing, source version control, and code optimization. Excellent communication and collaboration skills, with the ability to interact effectively with both technical teams and business stakeholders. Bachelor’s degree in machine learning, computer science, data science More ❯

arm of a global bank. As a Java Developer, you will research strategies for tailoring prices and controlling the behaviour of auto-hedging. You'll write production quality Java code used for pricing and hedging FX instruments and oversee the algorithms' performance intraday, ensuring that it is behaving as expected and acting when needed to fix any issues. You … fundamentals such as OOP, Data Structures, Design Patterns, Algorithms You have a deep knowledge of Java including garbage collection You have a strong appreciation of low latency systems and code optimisation to ensure speed You have experience within a financial services environment or can demonstrate a personal interest and desire to learn about financial markets and progress your More ❯

enable product innovation. Support reliability and operational excellence by implementing observability, automation, and incident response best practices. Contribute to CI/CD pipelines, workflow orchestration improvements, and infrastructure-as-code optimization. Provide architectural guidance and hands-on mentoring to engineers across teams. Document changes, create transition plans, and support a smooth handover of context and ownership to the permanent … internal platform infrastructure at scale in production environments. Expertise in AWS (especially Lambda, ECS/EC2, S3, and RDS). Strong hands-on experience with Terraform and infrastructure-as-code practices. Familiarity with tools like Airflow , DBT , and cloud data platforms such as Snowflake or Databricks . Understanding of CI/CD , observability, and platform reliability practices in cloud More ❯

ML solutions—focusing on advanced generative AI frameworks, large language models, and agentic workflows. Act as a technical leader by mentoring junior team members, providing guidance on best practices, code quality, and architectural design. Drive projects and strategic initiatives, collaborating with product squads and business stakeholders to ensure seamless integration of ML solutions into existing workflows. Develop robust, production … paced environments. Expertise in containerization (, Docker, Kubernetes, AWS EKS) and building scalable systems in cloud environments. Deep understanding of software development fundamentals, including automated testing, source version control, and code optimization. Excellent communication and collaboration skills to interact with technical teams, business partners, and stakeholders. Bachelor’s degree in machine learning, computer science, data science, applied mathematics, or a More ❯

PyTorch. Expertise in containerization (e.g., Docker, Kubernetes, AWS EKS) and building scalable systems in cloud environments. Deep understanding of software development fundamentals, including automated testing, source version control, and code optimization. Excellent communication and collaboration skills, with the ability to interact effectively with both technical teams and business stakeholders. Bachelor’s degree in machine learning, computer science, data science More ❯

PyTorch. Expertise in containerization (e.g., Docker, Kubernetes, AWS EKS) and building scalable systems in cloud environments. Deep understanding of software development fundamentals, including automated testing, source version control, and code optimization. Excellent communication and collaboration skills, with the ability to interact effectively with both technical teams and business stakeholders. Bachelor's degree in machine learning, computer science, data science More ❯

to drive meaningful change, enhance business decision-making, and contribute to the evolution of our firm’s technical capabilities. Required Skills: Proven expertise in Java development, including architectural design, code optimization, and unit testing. Strong understanding of financial systems, with the ability to quickly grasp business needs and align them with technical solutions. Ability to work autonomously on complex … non-technical audiences. A proactive and adaptable mindset with a continuous learning approach. Preferred Skills: Experience with Python Hands-on experience working with relational databases, including schema design, query optimisation, and performance tuning. Familiarity with data science principles and methodologies, with experience applying them in real-world scenarios. Expertise in the following technologies: Hibernate, PostgreSQL, Maven, Guice, Numpy, Pandas … Exposure to financial markets, either through formal education or professional experience An interest in and working knowledge of AI-assisted development tools (e.g., code generation, automated testing, intelligent documentation), with an appreciation for how these tools can enhance developer productivity and business insight. This role falls under the FCA Senior Managers and Certification Regime. A strong commitment to conduct More ❯

Visionary: Define and champion a compelling technical vision for D365 F&O and Commerce at On, inspiring and guiding the development team to deliver innovative and high-quality solutions. Code Craftsmanship: Promote a culture of code craftsmanship, emphasizing clean, efficient, and maintainable code. Lead by example, setting high standards for code quality and conducting code reviews … other programming languages relevant to D365 F&O and Commerce development. Performance Tuning: Proven experience in optimizing the performance of D365 F&O and Commerce applications, including database tuning, code optimization, and infrastructure configuration. Integration Expertise: Extensive experience integrating D365 F&O and Commerce with various systems using different integration technologies and patterns. Technical Leadership: Demonstrated ability to lead More ❯

changing environment, capable of delivering high quality work in collaboration with colleagues across the globe. Requirements: 3+ years' C/C++ development experience on Linux 3+ years' understanding of code optimization and high performing applications Bachelor's degree in Engineering, Computer Science, or a related subject Desirable: Experience with order management, exchange connectivity or market data handling for Equities More ❯

changing environment, capable of delivering high quality work in collaboration with colleagues across the globe. Requirements: 3+ years’ C/C++ development experience on Linux 3+ years’ understanding of code optimization and high performing applications Bachelor’s degree in Engineering, Computer Science, or a related subject Experience with order management, exchange connectivity or market data handling for Equities, FX More ❯

of possible for large drone teams. REQUIRED QUALIFICATIONS BS in Robotics, Computer Science, Mechatronics, Electrical Engineering, Mechanical Engineering, or related field. Proven understanding of data structures, algorithms, concurrency, and code optimisation. Strong computer vision and machine learning background and fluency in standard domain libraries (numpy, opencv, pytorch, etc) Experience deploying software to end customers, internal or external — turning research More ❯

into our smart contract execution environment About You You have experience or are excited to learn about virtual machines, RISC-V, AMD64 assembly, dynamic recompilation, bytecode interpreters, compilers (especially code optimization and machine code generation), low-level memory management, low-level OS interfaces (Linux), security sandboxing, performance engineering, zero-knowledge proof systems, and zero-knowledge virtual machines You More ❯

Blockchain.com is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are currently seeking an experienced C Rust Quantitative Software Engineer/Developer. You will … c++ engineer with functional experience in fast market connections and high frequency quoting. WHAT YOU WILL DO Design, develop, test, and deploy pricing & risk-management library for OTC trading Code optimization. Working in a scaled, performance based software environment building efficient, reliable/high-availability and fast applications Partner with the traders to define priorities and deliver custom software More ❯

experiments to optimize the product, user experience, and conversion funnels, driving continuous improvements. Technical Implementation - Implement technical solutions to support growth strategies, such as AI, Growth infrastructure, performance enhancements, code optimization, microservice architecture, integration of marketing tools, and more... Collaboration - Work closely with cross-functional teams, including product development and marketing, to align growth strategies with overall business objectives. More ❯

recommendation experience for our customers. This will involve working alongside our design leads, product leads, and business leads, helping with everything from the development of tools and platforms to code optimisations and the deployment of solutions. This role will have a business impact of at least GBP 100 million. The ideal candidate will have solid technical experience with search … be Beijing, Shenzhen, or London. Responsibilities Participate in system design, architecture, and software development of the search and recommendation function. Design, develop, test, deploy, maintain, and enhance high-quality code and solutions. Perform code reviews to optimise the technical performance of the solutions. Influence and coach a distributed team of engineers. Communicate and translate business needs into technical More ❯

recommendation experience for our customers. This will involve working alongside our design leads, product leads, and business leads, helping with everything from the development of tools and platforms to code optimisations and the deployment of solutions. This role will have a business impact of at least GBP 100 million. The ideal candidate will have solid technical experience with search … be Beijing, Shenzhen, or London. Responsibilities Participate in system design, architecture, and software development of the search and recommendation function. Design, develop, test, deploy, maintain, and enhance high-quality code and solutions. Perform code reviews to optimise the technical performance of the solutions. Influence and coach a distributed team of engineers. Communicate and translate business needs into technical More ❯