1 to 25 of 31 Performance Optimisation Jobs in Berkshire

Senior Java Software Engineer

Hiring Organisation
Sentinel
Location
Slough, Berkshire, UK
Employment Type
Full-time
reviews, write unit tests, and ensure adherence to development standards Work collaboratively within Agile teams, contributing to sprint planning and estimations Support bug fixing, performance optimisation, and integration testing Release & Deployment Provide build and release documentation to DevOps and QA teams Support smooth deployment cycles and quality assurance ...

Global Head of Platforms

Hiring Organisation
watchTowr
Location
Slough, Berkshire, UK
Employment Type
Full-time
global scale. The ideal candidate combines deep expertise in distributed systems, networking, and cloud infrastructure with a proven track record of leading high-performance engineering teams across multiple regions. The role is based in the UK. Sounds great – what will I do? This is a global technology leadership role … optimise our global distributed scanning and data processing platform, ensuring high throughput, resiliency, and low-latency operation across regions. Elevate DevOps and delivery performance, continuously improving deployment frequency, change lead time, failure rates, and time to recovery across services. Ensure global cloud and infrastructure alignment, balancing regional regulatory requirements ...

Senior API Technical Consultant (GraphQL Specialist)

Hiring Organisation
Staffworx Limited
Location
Slough, Berkshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
market rates, outside IR35, 2 days on site
decisions. Experience Extensive production experience architecting and delivering complex applications with TypeScript and Node.js . Expert level GraphQL , including advanced API design, schema evolution, performance optimisation. Strong automated testing frameworks like Vitest and Playwright . Proficiency with modern DevOps tooling and cloud-native architecture, including Docker , Helm , Kubernetes . ...

Senior Frontend Developer

Hiring Organisation
Noir
Location
Slough, Berkshire, UK
Employment Type
Full-time
join a company where your work genuinely matters. This is a role for engineers who are passionate about React, committed to building intuitive, high-performance interfaces, and excited about delivering cross-platform experiences using React Native. You'll play a key role in shaping the UI across both … design system. The team values engineers who are curious, collaborative, and eager to explore new ways of solving complex challenges, whether that's improving performance, enhancing accessibility, or leveraging tools like Storybook, Vite, and cutting-edge AI workflows. As a senior engineer, you'll help define the future ...

Senior Mobile App Engineer - React Native

Hiring Organisation
Future
Location
Slough, Berkshire, UK
Employment Type
Full-time
React Native Testing Library, test-driven development, and maintaining high code coverage Proven debugging skills with React Native profiling tools, Sentry crash reporting, and performance optimization techniques REST API integration expertise using Axios, authentication handling, error management, and data transformation DevOps experience with CI/CD pipelines, app store ...

Senior Mobile App Engineer - React Native

Hiring Organisation
Future
Location
Reading, Berkshire, UK
Employment Type
Full-time
React Native Testing Library, test-driven development, and maintaining high code coverage Proven debugging skills with React Native profiling tools, Sentry crash reporting, and performance optimization techniques REST API integration expertise using Axios, authentication handling, error management, and data transformation DevOps experience with CI/CD pipelines, app store ...

Data Science Expert (Python & SQL) - AI Trainer (Freelance, Remote)

Hiring Organisation
Braintrust
Location
Reading, Berkshire, UK
Employment Type
Full-time
detection with precision-recall optimization A/B test statistical calculations and experimental design Cohort analysis and retention rate computations Model evaluation metrics and performance optimization Statistical Analysis & Data Processing Hypothesis testing with multiple comparison corrections Causal inference: propensity score matching, difference-in-differences Complex ETL pipeline logic ...

Data Science Expert (Python & SQL) - AI Trainer (Freelance, Remote)

Hiring Organisation
Braintrust
Location
Slough, Berkshire, UK
Employment Type
Full-time
detection with precision-recall optimization A/B test statistical calculations and experimental design Cohort analysis and retention rate computations Model evaluation metrics and performance optimization Statistical Analysis & Data Processing Hypothesis testing with multiple comparison corrections Causal inference: propensity score matching, difference-in-differences Complex ETL pipeline logic ...

Senior Software Engineer (OutSystems and .NET)

Hiring Organisation
ITRAC
Location
Reading, Berkshire, UK
Employment Type
Full-time
Tech Stack & Experience Required Core Skills: Minimum 4 years of hands-on experience with the Outsystems platform Strong understanding of Outsystems Architecture, including modularization, performance optimization, and scalable design principles. Professional Traditional Web Developer Certification (mandatory). Associate Developer (ODC) Certification (mandatory). Scripting languages such as JavaScript, TypeScript ...

IT Applications Operations Engineer

Hiring Organisation
Oliver James
Location
Slough, Berkshire, UK
Employment Type
Full-time
Hiring: IT Application Operations Engineer! Our client is seeking an experienced and dynamic IT Application Operations Engineer to ensure the stability, reliability, and performance of their mission-critical application ecosystem. This is an exciting opportunity to join a forward-thinking organisation where technology excellence directly empowers business success. … applications to ensure optimal performance. Custom Development & Enhancements – Building and maintaining custom features and tools to meet business and application needs. Monitoring & Troubleshooting – Analysing performance issues, resolving incidents quickly, and implementing solutions that drive efficiency. Incident Management & Service Delivery – Leading incident resolution, managing SLAs and KPIs, and driving continual ...

Senior Shopify Developer

Hiring Organisation
Pulse Recruit
Location
Reading, Berkshire, UK
Employment Type
Full-time
builds using Liquid Hydrogen, Oxygen and modern Shopify frameworks Custom Shopify app development (Node/React or Ruby) API development and third-party integrations Performance optimisation for high-traffic storefronts Building reusable frontend components and design systems Technical scoping and solution design Code reviews, quality standards and mentoring ...

Senior Shopify Developer

Hiring Organisation
Pulse Recruit
Location
Slough, Berkshire, UK
Employment Type
Full-time
builds using Liquid Hydrogen, Oxygen and modern Shopify frameworks Custom Shopify app development (Node/React or Ruby) API development and third-party integrations Performance optimisation for high-traffic storefronts Building reusable frontend components and design systems Technical scoping and solution design Code reviews, quality standards and mentoring ...

Data Architect

Hiring Organisation
Ampstek
Location
Slough, Berkshire, UK
Employment Type
Full-time
best practices. Work with data engineering teams to implement dbt-based data pipelines for data transformation and lineage tracking. Ensure efficient data integration and performance optimization across Snowflake and downstream systems. Partner with BI developers to enable Power BI reporting and semantic modelling using curated data layers. Oversee data ...

Software Developer (CDNA)

Hiring Organisation
Crypto.com
Location
Slough, Berkshire, UK
Employment Type
Full-time
applications handling millions of requests per day Collaborate with cross-functional teams to design systems that meet business and regulatory requirements Continuously improve system performance and scalability through thoughtful design and optimization Implement automated testing, CI/CD pipelines, and performance monitoring Document system workflows, architecture, and design … code reviews and design discussions Must-Have Qualifications 5+ years of Java development experience Strong focus on concurrency, garbage collection tuning, and low-level performance optimizations Proficient in data structures and memory-efficient design patterns Solid experience in low-latency trading systems, particularly in Order Management Systems ...

Principal Security Researcher

Hiring Organisation
GitHub
Location
Slough, Berkshire, UK
Employment Type
Full-time
both through your own technical contributions and by mentoring others. You'll guide our strategy, influence architectural decisions for GitHub's products, and drive performance optimization in our team to increase our positive impact on the open source ecosystem. Our culture is built on developer empathy, transparency, and inclusive ...

Principal Security Researcher

Hiring Organisation
GitHub
Location
Reading, Berkshire, UK
Employment Type
Full-time
both through your own technical contributions and by mentoring others. You'll guide our strategy, influence architectural decisions for GitHub's products, and drive performance optimization in our team to increase our positive impact on the open source ecosystem. Our culture is built on developer empathy, transparency, and inclusive ...

Big Data Developer

Hiring Organisation
Information Tech Consultants
Location
Slough, Berkshire, UK
Employment Type
Full-time
Hadoop and Java. Work with Big Data technologies, including Spark, Hive (nice to have). Collaborate with cross-functional teams to deliver scalable, high-performance solutions. Participate in code reviews, testing, and performance optimization. Ensure best practices in coding, design, and architecture. Skills & Experience Required: 8–12 years ...

Senior Technology Architect-Oracle Integration Cloud-UK

Hiring Organisation
Infosys
Location
Slough, Berkshire, UK
Employment Type
Full-time
Demonstrate deep understanding of the Oracle Fusion/SaaS integration landscape. Design scalable Oracle Integration Cloud (OIC) roadmaps that translate client challenges into high-performance integration solutions. Build and deploy robust integrations using advanced OIC features and a wide range of connectors. Promote a culture of knowledge sharing … building trust. Stay current with emerging technologies and develop innovative integration solutions. Lead proactive troubleshooting efforts to ensure system reliability and stability. Drive performance optimization and automation across integration processes. Manage OIC projects efficiently, overseeing tasks, resources, and timelines. Ensure all solutions comply with security, performance, and governance ...

Quantitative Developer

Hiring Organisation
X4 Engineering
Location
Slough, Berkshire, UK
Employment Type
Full-time
Power, Gas, and Equity products. You will take ownership of implementing complex pricing models, designing calibration routines, integrating market data, and ensuring robust model performance in live trading environments. This position is well suited for someone who blends strong quantitative expertise with production-grade engineering skills and enjoys solving … highly desirable. This role offers the opportunity to influence mission-critical pricing infrastructure used globally, while contributing to innovation in modelling, calibration, and performance optimisation. If you're interested in exploring this opportunity, please get in touch or apply directly via the job advert. ...

Senior Power BI developer with DAX, PowerQuery, SQL, Snowflake Specialist II - Software Engineering

Hiring Organisation
UST
Location
Slough, Berkshire, UK
Employment Type
Full-time
data workflows to support business and operational reporting. The ideal candidate will collaborate closely with stakeholders to build reliable, high-performance dashboards and data models aligned with strategic reporting needs. Key Responsibilities Design, develop, and optimize Power BI semantic models for large datasets (4–5 GB and above). … Build advanced DAX calculations using best practices for performance and maintainability. Perform data transformation using Power Query (M language). Integrate data from Snowflake, SQL Server, SharePoint, and other enterprise sources. Use Tabular Editor and DAX Studio for model optimization, versioning, and troubleshooting. Implement data model and report performance ...

Engineering Manager

Hiring Organisation
Peaple Talent
Location
Slough, Berkshire, UK
Employment Type
Full-time
align with business objectives and measurable success outcomes. Act as the voice of engineering in cross-departmental initiatives and planning sessions. Define goals and performance expectations at both team and individual levels, and track progress against them. Key Experience Required: Proven background in designing and delivering enterprise-grade software … strength in stakeholder engagement and problem-solving. Strong awareness of business priorities and the ability to balance technical decisions with technical outcomes. Skilled in performance optimization, troubleshooting, complex issues, and applying secure coding standards. Extensive hands-on experience with Python. Deep knowledge of system architecture, continuous integration/continuous ...

Lead Software Engineer - Front End (Bangkok based, Relocation provided)

Hiring Organisation
Agoda
Location
Slough, Berkshire, UK
Employment Type
Full-time
building large scale web application, with a minimum of 3 years in a Tech Lead role. Proven experience designing, building, improving, and operating high-performance, scalable front-end systems. Extensive experience with client-side technologies & modern frameworks (e.g., Javascript, Typescript, React). Eager to work in multiple programming languages … great if you have: Knowledge of physical architecture at scale, building resilience and highly available solutions. Strong experience in all aspects of client-side performance optimization. Proficiency in modern coding and design practices. For example, Clean Code, SOLID principals, and TDD. Knowledge of back-end technologies and how they ...

Linux System Engineer - Systems Technologies and Engineering - London

Hiring Organisation
ByteDance
Location
Slough, Berkshire, UK
Employment Type
Full-time
been committed to the research and engineering development in the primary technology fields, such as operating system , various virtualization technologies (Cloud Native, SDN, NFV), performance optimization of system software and libraries, stability and reliability of large-scale data center, collaborative design of next-generation hardware and software, etc. … evolving system software; - Optimise AIOps tools of large scale clusters. Qualifications Minimum Qualifications - Familiar with common data structure and algorithm, multithreading programming and server performance optimization; - Familiar with the operating system and its components; - Proficient with Linux shell commands and basic shell scripting; - Be familiar with C or C++ ...

Site Reliability Engineer - Security Engineering - London

Hiring Organisation
TikTok
Location
Slough, Berkshire, UK
Employment Type
Full-time
picture of what we are working on. We count on our site reliability engineers (SREs) to empower our users with high availability and stellar performance level to pursue their missions from security perspective. As we expand our business, we are currently seeking experienced SRE to deliver insights from massive … database architecture and working principle, familiar with daily operation and maintenance including but not limited to high availability cluster construction, monitoring, backup, fault handling, Performance optimization. - Familiar with cloud native framework with experience in Kubernetes. Good experience with SRE tools such as Ansible, ELK, Prometheus and Grafana. Preferred Qualifications ...

Senior Software Engineer | 3D Graphics • Photogrammetry • Material Capture

Hiring Organisation
M-XR
Location
Slough, Berkshire, UK
Employment Type
Full-time
ready desktop application. Architect and maintain the geometry and rendering modules that underpin our material estimation technology across product and research teams. Deliver high-performance systems from raw image processing through to OpenGL-based rendering, optimized for high-resolution assets and production workflows. What you will … material capture in photogrammetry. Core Ownership Own the end-to-end 3D geometry and rendering modules and pipelines across product Develop and maintain high-performance C++ modules for 3D asset processing, OpenGL rendering, and mesh-camera visibility calculations Build Python services for pipeline orchestration, automation, and integration with ...