15 of 15 Remote Performance Optimisation Jobs in Cheltenham

Skills & Experience 5+ years of commercial experience in C# and .NET. Expertise in: .NET Framework and WinForms Modern .NET (.NET 9) SQL Server (including performance optimisation) Front-end tech (HTML, CSS, JavaScript) Proven experience with application modernisation, including migrating legacy WinForms applications to modern web platforms (Blazor preferred More ❯

and building complex front-end features using modern JavaScript frameworks. · Collaborating with UX/UI designers and stakeholders to deliver seamless user experiences. · Ensuring performance, accessibility, and cross-browser compatibility. · Influencing architecture and contributing to product design discussions. · Promoting best practices through code reviews and mentorship. · Staying up to … software. Essential Experience · Significant background in SaaS product development. · Track record of delivering high-quality, user-focused features. · Version control (Git) and collaborative workflows. · Performance optimisation and responsive design implementation. Bonus Points For · Full-stack capabilities with Node.js or similar. · Familiarity with AWS or Azure services. · Experience with More ❯

Overview: My client is a specialist engineering company that builds white label video streaming applications for global media brands. They focus on delivering high performance, scalable solutions across Roku, web, and mobile platforms. They are now looking for an experienced Roku Developer to join their team and work across … multiple branded streaming apps. This person will take the lead on feature development, performance optimisation, and ensuring alignment with Roku certification standards. Key Responsibilities: Build and deploy Roku applications using BrightScript and SceneGraph Configure and launch white-label apps for 18+ video streaming clients Lead development of major … features including templated views, DRM, and EPG Integrate ad tech (Roku Ad Framework) and analytics (Google Analytics) Drive performance enhancements, reducing load time, memory use, and CPU usage Required Skills: Strong experience with BrightScript and SceneGraph Track record of Roku app development and deployment Familiarity with Roku Advertising Framework More ❯

backend systems. Full-Stack Development : Build and maintain scalable front-end and back-end systems using Node.js and React (or other JavaScript frameworks). Performance Optimization : Optimize applications for speed, scalability, and user experience. Collaborative Development : Work closely with cross-functional teams including product managers, designers, and other developers More ❯

Tech Stack : React, .NET, AWS 🧠 You’ll bring : Proven expertise in React and .NET in production environments Strong experience with system design, observability, and performance optimisation Great communication and stakeholder engagement skills Background in financial, payroll, or reporting systems is a bonus 💼 Contract Details Day rate : TBC Length More ❯

security considerations. Evaluate, select, and implement VDI technologies (e.g., Citrix Virtual Apps and Desktops, VMware Horizon, Microsoft Azure Virtual Desktop). Ensure high availability, performance optimization, and disaster recovery of VDI environments. Collaborate with IT security, network, and application teams to ensure seamless integration and compliance. Provide technical leadership More ❯

and frontend architecture experience Experience building reporting or data-intensive UI components Familiarity with best practices such as TDD, SOLID principles, clean architecture, and performance optimisation Bonus: knowledge of payroll, finance, or reporting systems Comfortable working remotely, collaborating across teams 💼 Contract Details Rate: £650 + p/d More ❯

and non-technical team members, including clinicians and patients Technical Skills Unity3D and C# programming Version control (Git) UI/UX design for accessibility Performance optimization techniques Android SDK experience (nice to have) Some exposure to database technologies What we offer A competitive salary and benefits package (depending on More ❯

deep experience in both legacy and modern technology stacks. Key Responsibilities Software Engineering Leadership Set and own the technical roadmap, ensuring architectural scalability, security, performance, and maintainability of all software systems. Oversee full lifecycle software development — from requirements, technical design, development, testing, deployment, to post-release monitoring and maintenance. … cloud-native applications and services using Microsoft Azure , including Azure Functions, LogicApps, and container-based services. Drive cost-effective use of cloud services and performance optimization across environments. Ensure cloud architectures support observability, fault tolerance, and high availability. Data Engineering & Intelligent Systems Guide the engineering team in data modelling … software and infrastructure meet organizational security and compliance requirements (e.g., GDPR, ISO 27001, OWASP Top 10). Team Management & Culture Build and scale high-performance engineering teams, including backend, frontend, full-stack, data, and security engineers. Define and track KPIs for engineering productivity, quality, and performance. Promote an engineering More ❯

infrastructure in the space. What you’ll work on: Ultra-low latency trading systems Building and maintaining exchange connectivity across global venues Systems-level performance optimisation and tuning Working closely with Quant Researchers to support live trading What they’re looking for: Strong engineering skills in Rust (or … C++ with a genuine interest in Rust) Deep understanding of low-level systems and performance-critical environments Experience in HFT, trading infrastructure, or latency-sensitive systems A collaborative mindset – you’ll be working with both quants and fellow engineers daily The setup: Remote-first within Europe London preferred Highly More ❯

the Ad-Tech space? Our client, a trailblazer in data-driven digital advertising, is scaling fast and investing heavily in its engineering team. With performance-led products that leverage ML at scale, this is a rare chance to shape platforms used globally, without the red tape of a big … APIs to enrich and automate key workflows – Collaborate across functions, including DevOps and ML, to deploy resilient, efficient systems – Champion quality with automated tests, performance optimisations and code reviews You Will Need The Backend Python Engineer will bring... – Strong Python experience building backend systems and data workflows – Working knowledge … sets – A collaborative mindset and drive to solve real-world problems at scale Why You’ll Love It – £65,000–£75,000 salary + performance bonus + equity – Flexible remote-first model (or hybrid if you prefer) – Private health, dental and vision insurance – 25+ days holiday + enhanced parental More ❯

a strong focus on game logic. Collaborate with front-end engineers, game designers, and mathematicians to deliver fully integrated, high-performing gameplay features. Optimise performance and scalability to support high user loads. Write clean, testable code and contribute to CI/CD workflows. Stay informed on industry trends and … building game logic or high-throughput backend services. Understanding of probability and statistics as applied to game mechanics. Familiarity with secure server development and performance optimisation. Excellent communication skills and ability to work independently in a remote-first environment. Tech Stack & Tools Python (core language) Git for version control More ❯

support and clarification for developers by interpreting and refining business and functional requirements. Design and develop integration solutions using the MuleSoft platform, ensuring high performance, scalability, and code maintainability. Oversee the full development lifecycle including architecture, implementation, unit testing, performance optimization, and ongoing system monitoring. Offer technical expertise More ❯

authorization flows Write clean, maintainable, and well-documented code Participate in code reviews and maintain code quality standards Help optimize database queries and API performance Contribute to API documentation using Swagger/OpenAPI Secondary: Collaborate with frontend team on API integration Assist with React Native development when needed Help … implement and maintain frontend-backend interfaces Contribute to mobile app performance optimization Required Skills Essential: Strong experience with TypeScript and Node.js Proficiency in RESTful API development Experience with PostgreSQL or similar relational databases Understanding of database design and optimization Knowledge of authentication and authorization patterns Experience with API documentation More ❯

and development of their core platforms, including APIs, payment gateways, and switching infrastructure. About the Role: You will lead the design of scalable, high-performance platforms, ensuring they align with strategic business goals. You’ll provide hands-on technical leadership, shape the enterprise architecture roadmap, and guide teams in … Java, or similar languages, with a broad technical skillset spanning frontend and backend development. Strong understanding of systems integration, middleware, caching, databases, and web performance optimisation. Experience within the payments space is highly desirable. Comfortable navigating complex and ambiguous environments to provide clear architectural direction. Skilled at aligning technical More ❯