slough, south east england, united kingdom Hybrid / WFH Options
CipherTek Recruitment
reviewed until WC 3rd November We’re partnering with a global investment bank to hire an exceptional Software Engineer to join a flagship team delivering a next-generation, high-performance derivatives risk platform . This is a mission-critical front-office role working on real-time distributed systems with exceptional technical standards. You’ll be part of a high … Python or Java , ideally with working knowledge of another. Rust very desirable Proven experience designing and developing complex, distributed, real-time systems . Deep understanding of software architecture, concurrency, performanceoptimisation , and system reliability . Demonstrable front-end engineering experience using JavaScript, TypeScript, Angular or React Familiarity with containerisation (Kubernetes, Docker) and modern DevOps practices . Experience in More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Cititec
scenario analysis for high-volume, data-intensive trading activity. As Lead Developer, you will drive the architecture and implementation of a cloud native, microservice based risk framework, ensuring scalability, performance, and accuracy across all risk computations. You will collaborate closely with quantitative developers, traders, and other stakeholders to industrialise models and deliver a best-in-class risk capability. This … based risk infrastructure with high scalability and low latency. Provide hands-on technical leadership and mentorship within a distributed team of engineers across multiple global locations. Drive architectural improvements, performanceoptimisation, and best engineering practices. Technology Environment Languages: Python Architecture: Cloud-native, containerised microservices (Kubernetes, Docker). Infrastructure: Kafka, Terraform, Jenkins, Git, CI/CD pipelines. Data: SQL More ❯
marketing to translate user and business requirements into effective technical solutions.- Manage data structures and workflows, ensuring effective segmentation, automation and analytics.- Support operational stability, including incident resolution and performance optimisation.- Provide guidance and mentoring to colleagues, encouraging shared learning and best practice.Candidate ProfileEssential Experience & Skills:- Strong hands-on experience developing within Salesforce Marketing Cloud.- Proficiency in programming and More ❯
Buckinghamshire, United Kingdom Hybrid / WFH Options
Pertemps Contracts
marketing to translate user and business requirements into effective technical solutions. - Manage data structures and workflows, ensuring effective segmentation, automation and analytics. - Support operational stability, including incident resolution and performance optimisation. - Provide guidance and mentoring to colleagues, encouraging shared learning and best practice. Candidate Profile Essential Experience & Skills: - Strong hands-on experience developing within Salesforce Marketing Cloud. - Proficiency in More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Tata Consultancy Services
CloudWatch AWS SDKs, Boto3, and serverless architecture patterns Strong programming skills in Python and Apache Spark Proven experience in Snowflake data engineering, including: Snowflake SQL, Snowpipe, Streams & Tasks, and performance optimization Integration with AWS services and orchestration tools Expertise in data integration patterns, ETL/ELT, and data pipeline orchestration Experience with data quality frameworks, metadata management, and data More ❯
slough, 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 … 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 performanceoptimisation . 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 More ❯
internal stakeholders, engineering teams, and external technology partners to align designs with business objectives and industry standards. Delivery Deliver scalable and secure 5G/Open RAN solutions that meet performance, reliability, and compliance standards. Provide architecture documentation, design specifications, and technical recommendations to support deployment and operational teams. Ensure integration of multi-vendor components is robust, optimised, and interoperable … across the full RAN stack. Conduct RF planning, system modelling, and performance analysis to optimise coverage, capacity, and quality of service. Translate complex technical designs into practical solutions that enable efficient deployment and long-term maintainability. Role Expertise In-depth knowledge of wireless network architecture, particularly 5G SA, Open RAN, and vRAN/xRAN technologies. Strong expertise in cloud … standardised frameworks. Proficiency in evaluating fronthaul/midhaul/backhaul interfaces, with practical experience in O-RAN Split 7.2x. Hands-on skills in RF planning, propagation modelling, and system performanceoptimisation using industry-standard tools. Strong problem-solving, stakeholder management, and communication skills, with the ability to lead technical discussions and influence design decisions. Prior experience in advanced More ❯
slough, south east england, united kingdom Hybrid / WFH Options
VirtueTech Recruitment Group
solutions, with a preference for experience in both relational databases like SQL Server and NoSQL databases like MongoDB or CosmosDB. debugging and troubleshooting skills within the .NET environment, including performance optimization and monitoring. Familiarity with a range of software development tools, such as source code management (e.g. Azure DevOps, Git), build and release management (e.g. Azure DevOps Pipelines) and More ❯
slough, south east england, united kingdom Hybrid / WFH Options
SR2 | Socially Responsible Recruitment | Certified B Corporation™
paced product team delivering impactful mobile experiences to a global user base. What you’ll do Build and maintain robust mobile apps using React Native and Expo Optimise app performance, implement modern architecture patterns, and handle push notifications, offline-first features, and state management Collaborate on backend APIs (REST or GraphQL) and integrate secure authentication methods - JWT, OAuth Deploy … deployment processes Experience with database design (SQL or NoSQL) and backend integrations Proven AWS deployment experience and familiarity with Infrastructure as Code (CDK) Knowledge of monitoring, logging, and application performanceoptimisation Why Apply? Outside IR35, long-term contract with genuine extension potential High-value project Opportunity to influence software adoption at global scale Flexibility to work remotely within More ❯
Oxford, England, United Kingdom Hybrid / WFH Options
Hlx Life Sciences
We are currently supporting a leading research-driven organisation in their search for a Senior Platform Engineer to design, build, and maintain secure, high-performance cloud infrastructure supporting large-scale scientific data platforms. This role offers the chance to apply your engineering expertise in a purpose-driven environment, developing systems that enable cutting-edge data analysis and discovery. Key … or DevSecOps Hands-on experience with Terraform , Kubernetes , and cloud architecture (preferably OCI) Familiarity with high-throughput or data-intensive environments (e.g. scientific research, bioinformatics, analytics) Passion for automation, performanceoptimisation, and secure system design Location: Oxford, UK (Hybrid) Seniority: Senior-level More ❯
banbury, south east england, united kingdom Hybrid / WFH Options
Hlx Life Sciences
We are currently supporting a leading research-driven organisation in their search for a Senior Platform Engineer to design, build, and maintain secure, high-performance cloud infrastructure supporting large-scale scientific data platforms. This role offers the chance to apply your engineering expertise in a purpose-driven environment, developing systems that enable cutting-edge data analysis and discovery. Key … or DevSecOps Hands-on experience with Terraform , Kubernetes , and cloud architecture (preferably OCI) Familiarity with high-throughput or data-intensive environments (e.g. scientific research, bioinformatics, analytics) Passion for automation, performanceoptimisation, and secure system design Location: Oxford, UK (Hybrid) Seniority: Senior-level More ❯
milton keynes, south east england, united kingdom Hybrid / WFH Options
MND Association
digital platforms, ensuring they are secure, scalable, and aligned with best practice. Guide and support colleagues to enhance their technical understanding and product-based ways of working. Maintain high performance of core digital platforms through data analysis, testing, and continuous improvement. Identify and resolve technical issues, managing risks effectively and proactively. Act as the primary technical contact for our … technical understanding of infrastructure and architecture. Skilled in Drupal CMS and Microsoft Dynamics 365. Confident working with and managing relationships with external digital agencies. Knowledgeable about accessibility (WCAG 2.1), performanceoptimisation, and user experience standards. Excellent communication skills with ability to explain complex technical concepts clearly to colleagues with varying technical expertise. Strong analytical and problem-solving skills More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Paritas Recruitment
v16–v19+). Build and maintain integrations between Endur and internal/external systems. Collaborate with business analysts, traders, and risk teams to deliver technical solutions. Support release cycles, performanceoptimisation, and DevOps practices. Contribute to ongoing digital transformation and trading platform modernisation initiatives. Key Skills & Experience Strong experience in Endur development (v16+). Expertise in JVS, .NET More ❯
Reading, Oxfordshire, United Kingdom Hybrid / WFH Options
JAM Recruitment Ltd
alignment with operational and security requirements. Implementation & Migration: Oversee SAP S/4HANA installations and upgrades Security & Compliance: Manage SAP Secure Network Communications (SNC), encryption standards, and audit logging. Performance Optimization: Troubleshoot and enhance system efficiency. Stakeholder Collaboration: Work closely with contractors, government agencies, and IT teams to align SAP solutions with mission-critical objectives The Candidate Extensive SAP More ❯
Reading, Berkshire, South East, United Kingdom Hybrid / WFH Options
JAM Recruitment Ltd
alignment with operational and security requirements. Implementation & Migration: Oversee SAP S/4HANA installations and upgrades Security & Compliance: Manage SAP Secure Network Communications (SNC), encryption standards, and audit logging. Performance Optimization: Troubleshoot and enhance system efficiency. Stakeholder Collaboration: Work closely with contractors, government agencies, and IT teams to align SAP solutions with mission-critical objectives The Candidate Extensive SAP More ❯
Forest Hill, Oxfordshire, United Kingdom Hybrid / WFH Options
Sky
optimise and innovate. We turn big ideas into the products, content and services millions of people love. And we do it all right here at Sky. As a Senior Performance Engineer, you will be working as part of Global Commerce Central test team. You will be responsible for coordinating performance testing activities, acting as a single point of … to non-technical and technical audiences. Taking ownership of NFR, requirement analysis and finalisation and driving non-functional initiatives like Chaos testing Detailed results analysis including application monitoring, identify Performance bottlenecks and recommend/implement improvements or performance optimisation. Mediate potential conflicts and foster solutions-oriented discussions with stakeholders. Establish and maintain efficient and scalable performance testing … automation framework. Design, develop and maintain Performance Test scripts. Test execution & co-ordination across multiple external and internal teams for issue resolution. Conduct discovery process to specify scope, extent and type of Performance testing required. Able to define and troubleshoot Test environments to identify issues across System integration or component NFT. What you'll bring Experience in performanceMore ❯
slough, south east england, united kingdom Hybrid / WFH Options
microTECH Global LTD
benchmark, and deploy GPU-accelerated software and AI models at scale. Responsibilities: Design and maintain CI/CD pipelines for GPU-accelerated codecs and AI/ML libraries. Automate performance benchmarking and regression testing across multiple GPUs and hardware targets. Manage containerised environments (Docker, Kubernetes) to deploy GPU and ML workloads at scale. Provision and optimise GPU cloud infrastructure … containerisation and orchestration (Docker, Kubernetes). Experience with cloud GPU infrastructure (AWS, Azure, GCP) and IaC (Terraform, Ansible). Familiarity with GPU workflows (CUDA, SYCL, Vulkan, OpenCL) or HPC performance optimisation. Strong scripting and programming skills (Python, Bash, C/C++ exposure a plus). Knowledge of monitoring, logging, and performance testing for GPU/ML workloads. Excellent More ❯
slough, south east england, united kingdom Hybrid / WFH Options
FENESTRA
Leadership & Architecture Define and execute engineering strategy aligned with business objectives Develop and lead a high-performing team of Data Engineers, Data Analysts, and Data Scientists Architect scalable, high-performance data infrastructure with sophisticated system design principles Apply advanced computer science concepts (algorithmic complexity, Big O notation, design patterns) to solve complex data challenges Lead technology selection, build vs. … on Leadership Maintain hands-on involvement, writing and reviewing high-quality production code for up to 50% of the time Establish engineering standards that ensure code maintainability, testability, and performance Lead code reviews and technical design discussions, providing expert guidance Optimize systems for speed, scalability, and reliability through sophisticated engineering approaches Oversee the evolution of our data infrastructure including … development efforts and client discussions Stay current with AdTech industry developments to identify technical opportunities Delivery & Execution Drive execution of the technical roadmap with high standards for quality and performance Oversee development lifecycle processes that balance speed with engineering excellence Implement data governance and security best practices across our platform Ensure efficient data storage, processing, and retrieval at scale More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Radley James
leading global FX trading platform as a Java Engineer, contributing to the backbone of ultra-low latency systems powering high-volume electronic trading. This role focuses on building high-performance, globally distributed Java services that enable real-time transaction processing, configuration management, and support for quantitative research and trading teams. Key Responsibilities: Develop scalable backend systems to support high … frequency FX trading Collaborate with quants and traders to deliver platform enhancements Drive performance tuning and solve low-level technical bottlenecks Maintain high standards in testing, documentation, and code quality Tech Stack & Skills: Strong proficiency in core Java Exposure to JavaScript/TypeScript & HTML5 is a plus Deep understanding of data structures, algorithms, and performance optimization Familiar with More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Tenth Revolution Group
and machine learning use cases. Work closely with clients to understand data requirements and translate them into robust technical solutions. Implement best practices for data modelling, data quality, and performance tuning across cloud-based platforms. Collaborate with cross-functional teams including data scientists, analysts, and software engineers to deliver end-to-end data solutions. Ensure data security, compliance, and … standards are met across all projects. Required Skills Strong experience with Azure data services (Data Factory, Synapse, Blob Storage, etc.). Proficiency in SQL for data manipulation, transformation, and performance optimisation. Hands-on experience with Databricks (Spark, Delta Lake, notebooks). Solid understanding of data architecture principles and cloud-native design. Experience working in consultancy or client-facing roles More ❯
Buckinghamshire, England, United Kingdom Hybrid / WFH Options
Tank Recruitment
trusted by hundreds of institutions worldwide, helping universities and colleges. They're now looking for a Cloud Operations Team Lead to take ownership of their cloud infrastructure, ensuring optimal performance, security, and reliability while driving automation and cloud governance across the business. This is a hands-on leadership role, combining strategic oversight with technical delivery, and offers the opportunity … experience also valued). Strong understanding of Infrastructure-as-Code and configuration management tools. Proven leadership experience, managing teams and cloud infrastructure projects. Proficiency in cloud monitoring, alerting, and performance optimisation. Strong grasp of cloud security, governance, and compliance best practices. Experience with CI/CD tools and supporting development workflows. Excellent communication, leadership, and stakeholder management skills. Solid More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Paradigm Talent
integration between computation, data, and science. You should have Deep experience building and scaling backend systems and distributed applications . Strong coding skills in Python , with an understanding of performance tuning and concurrency. Hands-on experience with Kubernetes , AWS , and modern cloud infrastructure . Proficiency with databases — schema design, performance optimization, and analytics. Familiarity with REST APIs , websockets … security best practices. A disciplined engineering mindset — you think about reliability, maintainability, and long-term scalability. Nice-to-haves Experience with MLOps and model-serving infrastructure. Background in high-performance computing or large-scale scientific workloads. Expertise in data pipeline architecture and real-time streaming systems. Knowledge of scientific or biological computing environments . This is a rare opportunity More ❯
Reading, Berkshire, England, United Kingdom Hybrid / WFH Options
Robert Walters
that makes it possible. As Data Solutions Architect you will: Define and deliver the UK data and analytics strategy in alignment with business goals. Design and implement scalable, high-performance data architectures using the Microsoft stack. Champion the use of self-service analytics and promote a data-driven culture across all business functions. Collaborate with stakeholders to translate business … improve business efficiency. Provide thought leadership on modern data tools and architectures, including Microsoft Fabric, Azure Data Services, and Copilot capabilities. Oversee solution quality, from testing and validation to performance tuning and governance. Mentor colleagues and guide partners to ensure consistent technical excellence and successful project delivery. Support incident and request management for analytics, data, and automation platforms. We … Microsoft ecosystem - Power BI/Fabric, Azure, and Power Platform (Power Apps, Power Automate). Proficiency in SQL and data modelling, with a strong understanding of data governance and performance optimisation. Solid understanding of automation technologies and their application at scale. Experience in Agile delivery environments, balancing quality with pace. Strong appreciation for AI and its role in modern More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Undisclosed
on Genesys-related technical issues, challenges, and solutions. Serve as a trusted advisor on Genesys technologies, capabilities, and best practices, helping stakeholders maximize the value of their Genesys investments. Performance Optimization and Tuning: Identify opportunities to optimize performance, efficiency, and scalability of Genesys contact center environments through system tuning, configuration adjustments, and capacity planning. Conduct performance assessments … diagnostic analyses, and tuning activities to ensure optimal performance under varying workloads and conditions. Training and Knowledge Transfer: Develop and deliver training sessions, workshops, and educational materials to internal teams and stakeholders on Genesys products, features, and implementation methodologies. Facilitate knowledge sharing and collaboration within the organization to build internal expertise and capabilities in Genesys technologies. Vendor Management and More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Hunter Bond
real-time trading Crafting interactive dashboards and research tools with live insights and streaming data Working with the quants to turn complex models into intuitive, usable interfaces Developing high-performance UIs for large-scale datasets and real-time visualisations Bringing real-time ML insights to life Implementing real-time data streaming and WebSocket-powered interfaces for instant updates Applying … modern React patterns, component architecture, and performance optimisations to mission-critical apps Shaping the future of trading interfaces, using the latest front-end tech to solve unique quant challenges Innovating! Ideal background: Minimum 1 year+ experience with React/TypeScript/Next.js etc Ideally someone Python Solid CompSci fundamentals (degree ideally but not essential) Passion for tech — meetups, side More ❯