paisley, central scotland, united kingdom Hybrid / WFH Options
Lorien
growing, global-reaching SAAS company with a great reputation in their domain, are currently looking to hire a Technical Lead/Lead Developer or even a hands-on Software Engineering Manager with a background in C# to join their team, help lead from the front, and play a key role in the next stages of the company’s evolution … As a Technical Lead/Lead Developer, you will play a pivotal role in leading a feature team, ensuring the successful delivery of business goals, and cultivating a high-performanceengineering culture. You will collaborate closely with cross-functional teams, including QA, product, design, data analysts and more, to deliver high-quality, scalable, and performant systems that meet … the team up by recruiting new staff down the line as well as developing the skills of those already in the squad Ability to set and reach goals, execute performance development planning, and conducting regular one-to-one meetings Why Join This Company? This company offers a competitive salary, a comprehensive benefits package, and a supportive, inclusive work environment. More ❯
milton, central scotland, united kingdom Hybrid / WFH Options
Lorien
growing, global-reaching SAAS company with a great reputation in their domain, are currently looking to hire a Technical Lead/Lead Developer or even a hands-on Software Engineering Manager with a background in C# to join their team, help lead from the front, and play a key role in the next stages of the company’s evolution … As a Technical Lead/Lead Developer, you will play a pivotal role in leading a feature team, ensuring the successful delivery of business goals, and cultivating a high-performanceengineering culture. You will collaborate closely with cross-functional teams, including QA, product, design, data analysts and more, to deliver high-quality, scalable, and performant systems that meet … the team up by recruiting new staff down the line as well as developing the skills of those already in the squad Ability to set and reach goals, execute performance development planning, and conducting regular one-to-one meetings Why Join This Company? This company offers a competitive salary, a comprehensive benefits package, and a supportive, inclusive work environment. More ❯
an ambitious Head of Applications to lead their global Application Technology team across the UK, Singapore, and the US. This is a high-impact leadership role where youll shape engineering culture, drive technical excellence, and scale customer-facing SaaS systems used by some of the largest enterprises in the world. What youll be doing: Leading and growing a global … application engineering team , spanning backend and frontend systems Building critical SaaS capabilities for enterprise clients: account lifecycle, access control, notifications, logging, multi-tenancy, and more Partnering with local leads to ensure global alignment and consistent delivery standards Driving a high-performanceengineering culture through structured reviews, coaching, and career development pathways Partnering with Product Design to deliver … robust enterprise workflows Tackling complex technical challenges across large-scale data pipelines, secure access, event-driven systems, and multi-tenant architectures Embedding Agile, DevOps, and best practices into the engineering organisation What theyre looking for: 10+ years of experience building and managing distributed engineering teams across multiple regions Proven track record as a global leader , managing local leads More ❯
ambitious Head of Applications to lead their global Application Technology team across the UK, Singapore, and the US. This is a high-impact leadership role where you'll shape engineering culture, drive technical excellence, and scale customer-facing SaaS systems used by some of the largest enterprises in the world. What you'll be doing Leading and growing a … global application engineering team , spanning backend and frontend systems Building critical SaaS capabilities for enterprise clients: account lifecycle, access control, notifications, logging, multi-tenancy, and more Partnering with local leads to ensure global alignment and consistent delivery standards Driving a high-performanceengineering culture through structured reviews, coaching, and career development pathways Partnering with Product Design to … robust enterprise workflows Tackling complex technical challenges across large-scale data pipelines, secure access, event-driven systems, and multi-tenant architectures Embedding Agile, DevOps, and best practices into the engineering organisation What they're looking for 10+ years of experience building and managing distributed engineering teams across multiple regions Proven track record as a global leader , managing local More ❯
Glasgow, City of Glasgow, United Kingdom Hybrid / WFH Options
Lorien
growing, global-reaching SAAS company with a great reputation in their domain, are currently looking to hire a Technical Lead/Lead Developer or even a hands-on Software Engineering Manager with a background in C# to join their team, help lead from the front, and play a key role in the next stages of the company's evolution … As a Technical Lead/Lead Developer, you will play a pivotal role in leading a feature team, ensuring the successful delivery of business goals, and cultivating a high-performanceengineering culture. You will collaborate closely with cross-functional teams, including QA, product, design, data analysts and more, to deliver high-quality, scalable, and performant systems that meet … the team up by recruiting new staff down the line as well as developing the skills of those already in the squad Ability to set and reach goals, execute performance development planning, and conducting regular one-to-one meetings Why Join This Company? This company offers a competitive salary, a comprehensive benefits package, and a supportive, inclusive work environment. More ❯
Glasgow, Lanarkshire, Scotland, United Kingdom Hybrid / WFH Options
Lorien
growing, global-reaching SAAS company with a great reputation in their domain, are currently looking to hire a Technical Lead/Lead Developer or even a hands-on Software Engineering Manager with a background in C# to join their team, help lead from the front, and play a key role in the next stages of the company's evolution … As a Technical Lead/Lead Developer, you will play a pivotal role in leading a feature team, ensuring the successful delivery of business goals, and cultivating a high-performanceengineering culture. You will collaborate closely with cross-functional teams, including QA, product, design, data analysts and more, to deliver high-quality, scalable, and performant systems that meet … the team up by recruiting new staff down the line as well as developing the skills of those already in the squad Ability to set and reach goals, execute performance development planning, and conducting regular one-to-one meetings Why Join This Company? This company offers a competitive salary, a comprehensive benefits package, and a supportive, inclusive work environment. More ❯
seeking an experienced Senior .NET Engineer to join a dynamic team within the finance industry. You will play a pivotal role in designing and developing robust, scalable, and high-performance systems using the latest .NET and Azure technologies, with a focus on Event Driven Architecture and Event Sourcing. This is an exciting opportunity to join a forward-thinking fintech … implement Event Driven and Event Sourcing systems in Azure Collaborate with cross-functional teams to define technical requirements Mentor and guide junior engineers, promoting best practices and a high-performanceengineering culture Conduct code reviews, assess architectural decisions, and suggest process improvements Ensure applications are secure, scalable, resilient, and observable Requirements: Extensive experience developing applications in .NET and … and deployment Hands-on experience with Event Driven Architecture and Event Sourcing principles Strong familiarity with CI/CD processes and automated testing frameworks Proven leadership experience in guiding engineering teams and delivering high-quality software Excellent problem-solving skills and the ability to communicate technical concepts clearly Exposure to financial services or fintech domains is highly desirable If More ❯
Derbyshire, East Midlands, United Kingdom Hybrid / WFH Options
Oscar Associates (UK) Limited
The Role An exciting opportunity has arisen for a skilled Software Engineer to join a growing Agile development team, working on advanced software solutions for complex engineering applications. This is a technical development role with a strong focus on modern C++ and software engineering best practices. You will be involved in the full development lifecycle, from requirements gathering … Visual Studio, Git, Jira etc Great communication skills Desirable Strong Maths/Physics background React and JavaScript The Company This is a well-established organisation recognised for delivering high-performanceengineering software used worldwide. Their teams are highly collaborative, technically driven, and committed to pushing the boundaries of precision and performance. They provide an environment that values innovation More ❯
london, south east england, united kingdom Hybrid / WFH Options
Staffworx
Power BI. The role requires deep technical expertise in Spotfire s visual and scripting frameworks, alongside the ability to reverse-engineer, redesign and optimize data models for scalable, high-performance reporting in Power BI. This role is critical to navigating functional parity, data transformation and performance alignment between platforms, working closely with business users, report owners and Power … and Power BI developers to align source data, dataflows and model transformations. Work with business stakeholders to define functional parity, consolidate multiple versions and recommend optimisations. Provide guidance on performanceengineering approaches in Power BI, including model size reduction, incremental refresh, composite models, DirectQuery/Import trade-offs. Support UAT by validating that migrated Power BI reports meet More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Staffworx
Power BI. The role requires deep technical expertise in Spotfire s visual and scripting frameworks, alongside the ability to reverse-engineer, redesign and optimize data models for scalable, high-performance reporting in Power BI. This role is critical to navigating functional parity, data transformation and performance alignment between platforms, working closely with business users, report owners and Power … and Power BI developers to align source data, dataflows and model transformations. Work with business stakeholders to define functional parity, consolidate multiple versions and recommend optimisations. Provide guidance on performanceengineering approaches in Power BI, including model size reduction, incremental refresh, composite models, DirectQuery/Import trade-offs. Support UAT by validating that migrated Power BI reports meet More ❯
Power BI. The role requires deep technical expertise in Spotfire s visual and scripting frameworks, alongside the ability to reverse-engineer, redesign and optimize data models for scalable, high-performance reporting in Power BI. This role is critical to navigating functional parity, data transformation and performance alignment between platforms, working closely with business users, report owners and Power … and Power BI developers to align source data, dataflows and model transformations. Work with business stakeholders to define functional parity, consolidate multiple versions and recommend optimisations. Provide guidance on performanceengineering approaches in Power BI, including model size reduction, incremental refresh, composite models, DirectQuery/Import trade-offs. Support UAT by validating that migrated Power BI reports meet More ❯
Über uns Our client is a fast-growing international mobility and technology company that operates one of the most advanced real-time booking and pricing platforms in Europe. The engineering culture is fast, collaborative and impact-driven - combining the dynamics of a scale-up with the stability of an established global brand. Aufgaben Develop and optimize core C++ components … for a global real-time platform Work on algorithms for pricing, vouchers, taxation and high-load transaction logic Improve performance, memory usage, concurrency and system stability Contribute to architecture, technical design and code reviews Collaborate with cross-functional engineering teams in Germany, Eastern Europe and Asia Maintain high code quality, testing standards and documentation Drive features end-to … end in a modern, high-performanceengineering culture Profil 5-10+ years of hands-on experience with modern C++ (C+/14/17/20) Knowledge of data structures, algorithms, multi-threading, concurrency and memory management Experience building high-performance or large-scale backend systems Solid understanding of software architecture, APIs and distributed systems Ability More ❯
Power BI. The role requires deep technical expertise in Spotfire s visual and scripting frameworks, alongside the ability to reverse-engineer, redesign and optimize data models for scalable, high-performance reporting in Power BI. This role is critical to navigating functional parity, data transformation and performance alignment between platforms, working closely with business users, report owners and Power … and Power BI developers to align source data, dataflows and model transformations. Work with business stakeholders to define functional parity, consolidate multiple versions and recommend optimisations. Provide guidance on performanceengineering approaches in Power BI, including model size reduction, incremental refresh, composite models, DirectQuery/Import trade-offs. Support UAT by validating that migrated Power BI reports meet More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Staffworx
Power BI. The role requires deep technical expertise in Spotfire s visual and scripting frameworks, alongside the ability to reverse-engineer, redesign and optimize data models for scalable, high-performance reporting in Power BI. This role is critical to navigating functional parity, data transformation and performance alignment between platforms, working closely with business users, report owners and Power … and Power BI developers to align source data, dataflows and model transformations. Work with business stakeholders to define functional parity, consolidate multiple versions and recommend optimisations. Provide guidance on performanceengineering approaches in Power BI, including model size reduction, incremental refresh, composite models, DirectQuery/Import trade-offs. Support UAT by validating that migrated Power BI reports meet More ❯
Power BI. The role requires deep technical expertise in Spotfire s visual and scripting frameworks, alongside the ability to reverse-engineer, redesign and optimize data models for scalable, high-performance reporting in Power BI. This role is critical to navigating functional parity, data transformation and performance alignment between platforms, working closely with business users, report owners and Power … and Power BI developers to align source data, dataflows and model transformations. Work with business stakeholders to define functional parity, consolidate multiple versions and recommend optimisations. Provide guidance on performanceengineering approaches in Power BI, including model size reduction, incremental refresh, composite models, DirectQuery/Import trade-offs. Support UAT by validating that migrated Power BI reports meet More ❯
london, south east england, united kingdom Hybrid / WFH Options
Staffworx
Power BI. The role requires deep technical expertise in Spotfire s visual and scripting frameworks, alongside the ability to reverse-engineer, redesign and optimize data models for scalable, high-performance reporting in Power BI. This role is critical to navigating functional parity, data transformation and performance alignment between platforms, working closely with business users, report owners and Power … and Power BI developers to align source data, dataflows and model transformations. Work with business stakeholders to define functional parity, consolidate multiple versions and recommend optimisations. Provide guidance on performanceengineering approaches in Power BI, including model size reduction, incremental refresh, composite models, DirectQuery/Import trade-offs. Support UAT by validating that migrated Power BI reports meet More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Staffworx
Power BI. The role requires deep technical expertise in Spotfire s visual and scripting frameworks, alongside the ability to reverse-engineer, redesign and optimize data models for scalable, high-performance reporting in Power BI. This role is critical to navigating functional parity, data transformation and performance alignment between platforms, working closely with business users, report owners and Power … and Power BI developers to align source data, dataflows and model transformations. Work with business stakeholders to define functional parity, consolidate multiple versions and recommend optimisations. Provide guidance on performanceengineering approaches in Power BI, including model size reduction, incremental refresh, composite models, DirectQuery/Import trade-offs. Support UAT by validating that migrated Power BI reports meet More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Staffworx
Power BI. The role requires deep technical expertise in Spotfire s visual and scripting frameworks, alongside the ability to reverse-engineer, redesign and optimize data models for scalable, high-performance reporting in Power BI. This role is critical to navigating functional parity, data transformation and performance alignment between platforms, working closely with business users, report owners and Power … and Power BI developers to align source data, dataflows and model transformations. Work with business stakeholders to define functional parity, consolidate multiple versions and recommend optimisations. Provide guidance on performanceengineering approaches in Power BI, including model size reduction, incremental refresh, composite models, DirectQuery/Import trade-offs. Support UAT by validating that migrated Power BI reports meet More ❯
go-live confidence for the biggest retail brands. Learn more about us here. This is an exciting opportunity to join Spike at a time when we are growing our Performance practice . We are looking for Performance Engineers to join us working as part of a team executing effective and professional technical engineering services across our growing … client portfolio on different projects. You will use a wide variety of Performance Testing solutions, technologies, and tools and contribute to the achievement of business objectives by executing technical work with a level of supervision. Key responsibilities Contributes to the successful completion of technical areas within projects. Develops and executes performance testing throughout the complete development lifecycle, from … goals. Accurately identifies project risks and reports effectively to relevant stakeholders. Manages issues, risks, actions, dependencies, and defects to the success of the project. Required skills Experience of delivering performance testing throughout the software delivery lifecycle. Experience of analysing performance issues in at least one performance test tool and experience of application and infrastructure monitoring tools. Ability More ❯
Reigate, England, United Kingdom Hybrid / WFH Options
esure Group
exceptional service, to deliver personalised experiences that meet our customers ever-changing needs today and in the future. Role description We are currently recruiting for an Application Reliability and performance Engineer to join our Team. We are seeking a high motivated individual to bring a diverse skill set and proactive mindset to help ensure the stability, efficiency, and resilience … query language and PLSQL Agile principles and ways of working Excellent client-facing communication skills DevOps mindset Excellent problem-solving abilities Automation Core AWS Services & Infrastructure as Code Application Performance Optimisation What’s in it for you?: Competitive salary that reflects your skills, experience and potential. Discretionary bonus scheme that recognises your hard work and contributions to esure’s More ❯
guildford, south east england, united kingdom Hybrid / WFH Options
esure Group
exceptional service, to deliver personalised experiences that meet our customers ever-changing needs today and in the future. Role description We are currently recruiting for an Application Reliability and performance Engineer to join our Team. We are seeking a high motivated individual to bring a diverse skill set and proactive mindset to help ensure the stability, efficiency, and resilience … query language and PLSQL Agile principles and ways of working Excellent client-facing communication skills DevOps mindset Excellent problem-solving abilities Automation Core AWS Services & Infrastructure as Code Application Performance Optimisation What’s in it for you?: Competitive salary that reflects your skills, experience and potential. Discretionary bonus scheme that recognises your hard work and contributions to esure’s More ❯
london, south east england, united kingdom Hybrid / WFH Options
techstack Recruitment
Principal JavaScript Performance Engineer (with C++/Java/C# exposure) Location: London (Hybrid 2 days WFH) Salary: 150,000 - 200,000 (Permanent)pension, private healthcare, gym membership, 25 days + 8 BH holiday allowance, tech/hardware budget. A high-growth software company is building the gold standard in UI frameworks and data-intensive visualisation technology . With … the edge of whats possible in the browser solving problems of scale, speed, and complexity that ordinary web development never touches. What youll do Design and optimise a high-performance UI framework used globally in real-time applications. Push the limits of JavaScript, TypeScript, and the browser runtime to handle millions of data points smoothly. Solve deep algorithmic and … developers and enterprises worldwide. What youll bring Mastery of vanilla JavaScript and TypeScript , with additional exposure to C++, Java, or C# . Strong knowledge of data structures, algorithms, and performance optimisation . Experience with frameworks like React, Angular, or Vue , and a deep understanding of DOM internals and rendering pipelines . A systems-level mindset : diagnosing bottlenecks, eliminating memory More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
techstack Recruitment
Principal JavaScript Performance Engineer (with C++/Java/C# exposure) Location: London (Hybrid 2 days WFH) Salary: 150,000 - 200,000 (Permanent)pension, private healthcare, gym membership, 25 days + 8 BH holiday allowance, tech/hardware budget. A high-growth software company is building the gold standard in UI frameworks and data-intensive visualisation technology . With … the edge of whats possible in the browser solving problems of scale, speed, and complexity that ordinary web development never touches. What youll do Design and optimise a high-performance UI framework used globally in real-time applications. Push the limits of JavaScript, TypeScript, and the browser runtime to handle millions of data points smoothly. Solve deep algorithmic and … developers and enterprises worldwide. What youll bring Mastery of vanilla JavaScript and TypeScript , with additional exposure to C++, Java, or C# . Strong knowledge of data structures, algorithms, and performance optimisation . Experience with frameworks like React, Angular, or Vue , and a deep understanding of DOM internals and rendering pipelines . A systems-level mindset : diagnosing bottlenecks, eliminating memory More ❯
City of London, London, United Kingdom Hybrid / WFH Options
techstack Recruitment
Principal JavaScript Performance Engineer (with C++/Java/C# exposure) Location: London (Hybrid – 2 days WFH) Salary: £150,000 - £200,000 (Permanent)pension, private healthcare, gym membership, 25 days + 8 BH holiday allowance, tech/hardware budget. A high-growth software company is building the gold standard in UI frameworks and data-intensive visualisation technology . With … of what’s possible in the browser — solving problems of scale, speed, and complexity that ordinary web development never touches. What you’ll do Design and optimise a high-performance UI framework used globally in real-time applications. Push the limits of JavaScript, TypeScript, and the browser runtime to handle millions of data points smoothly. Solve deep algorithmic and … and enterprises worldwide. What you’ll bring Mastery of vanilla JavaScript and TypeScript , with additional exposure to C++, Java, or C# . Strong knowledge of data structures, algorithms, and performance optimisation . Experience with frameworks like React, Angular, or Vue , and a deep understanding of DOM internals and rendering pipelines . A systems-level mindset : diagnosing bottlenecks, eliminating memory More ❯
Principal JavaScript Performance Engineer (with C++/Java/C# exposure) Location: London (Hybrid – 2 days WFH) Salary: £150,000 - £200,000 (Permanent)pension, private healthcare, gym membership, 25 days + 8 BH holiday allowance, tech/hardware budget. A high-growth software company is building the gold standard in UI frameworks and data-intensive visualisation technology . With … of what’s possible in the browser — solving problems of scale, speed, and complexity that ordinary web development never touches. What you’ll do Design and optimise a high-performance UI framework used globally in real-time applications. Push the limits of JavaScript, TypeScript, and the browser runtime to handle millions of data points smoothly. Solve deep algorithmic and … and enterprises worldwide. What you’ll bring Mastery of vanilla JavaScript and TypeScript , with additional exposure to C++, Java, or C# . Strong knowledge of data structures, algorithms, and performance optimisation . Experience with frameworks like React, Angular, or Vue , and a deep understanding of DOM internals and rendering pipelines . A systems-level mindset : diagnosing bottlenecks, eliminating memory More ❯