26 to 50 of 56 Performance Optimisation Jobs in Berkshire

Backend Engineer, Contract | Python (Django), Java and Rust | Fully Remote / EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length

Hiring Organisation
Owen Thomas | Pending B CorpTM
Location
Reading, Berkshire, UK
Employment Type
Full-time
Contract Length Designing and building robust backend services across Python and Django Collaborating with product and platform teams to scale critical infrastructure Contributing to performance optimisation, secure coding, and clean architecture decisions Bringing in best practices across multiple programming paradigms and languages Core Skills for the Backend Engineer ...

Backend Engineer, Contract | Python (Django), Java and Rust | Fully Remote / EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length

Hiring Organisation
Owen Thomas | Pending B CorpTM
Location
Slough, Berkshire, UK
Employment Type
Full-time
Contract Length Designing and building robust backend services across Python and Django Collaborating with product and platform teams to scale critical infrastructure Contributing to performance optimisation, secure coding, and clean architecture decisions Bringing in best practices across multiple programming paradigms and languages Core Skills for the Backend Engineer ...

Software Engineer

Hiring Organisation
Block MB
Location
Slough, Berkshire, UK
Employment Type
Full-time
Strong proficiency across Python/TypeScript/Golang (or equivalent polyglot stacks) with proven ownership of production-grade systems. Expertise in real-time systems, performance optimisation, fault tolerance and scalable architectures under uncertainty. Experience with financial protocols, market data feeds, order matching or compute infrastructure is a strong ...

Salesforce Solution Architect

Hiring Organisation
NTT DATA
Location
Slough, Berkshire, UK
Employment Type
Full-time
users. In this role, you'll provide authoritative guidance and best practices across critical areas including marketing automation architecture, customer data platforms, omnichannel personalization, performance optimization, and governance frameworks. This is a project leadership position where you'll shape transformative Salesforce solutions for retail clients, ensuring that technical decisions ...

Full Stack Engineer

Hiring Organisation
ITC Infotech
Location
Slough, Berkshire, UK
Employment Type
Full-time
solutions. Implement GraphQL for optimized API interactions and data fetching. Database Integration: Integrate databases and ensure data security and integrity. Optimize database queries and performance to enhance overall application efficiency. API Development: Develop and maintain RESTful APIs for seamless communication between the front-end and back-end systems. Implement … attention to detail. Preferred Skills: Familiarity with containerization technologies such as Docker and orchestration with Kubernetes. Knowledge of agile development methodologies. Experience with performance optimization and troubleshooting. If you are a passionate Full Stack Developer looking to contribute to cutting- edge projects in a collaborative environment, we encourage ...

Software Engineer

Hiring Organisation
Understanding Solutions
Location
Slough, Berkshire, UK
Employment Type
Full-time
platform, leading the development of the execution layer and market-making system. You'll step into a technical leadership role, driving architecture, improving performance, and ensuring the system is built to world-class standards. If you've built ultra-low-latency trading systems before and want to take full … systems Proven ability to lead the build of execution engines, market-making platforms, or similar low-latency trading infrastructure Strong background in system architecture, performance optimisation, and fault-tolerant distributed systems Experience replacing or migrating systems from languages such as Python into Rust Comfortable taking full ownership ...

Data Analyst

Hiring Organisation
RELX
Location
Slough, Berkshire, UK
Employment Type
Full-time
Gold layer curation. Expertise in Power BI, including: Intermediate DAX Star schema modelling and semantic model design Report UX/UI best practices Performance optimisation Hands-on experience with Microsoft Fabric features such as Lakehouse, Data Warehouse, dataflows, and semantic models. SQL skills for data exploration, transformation ...

Data Warehouse Specialist

Hiring Organisation
Practicus
Location
Slough, Berkshire, UK
Employment Type
Full-time
models, pipelines, and design decisions Support development of data pipelines, Fabric workloads, and Power BI integration Validate ETL/ELT processes, migrated datasets, and performance optimisation approaches Ensure data governance, security, privacy, and quality standards are embedded from day one Confidently challenge vendors, call out risks, and keep ...

Data Warehouse Specialist

Hiring Organisation
Practicus
Location
Reading, Berkshire, UK
Employment Type
Full-time
models, pipelines, and design decisions Support development of data pipelines, Fabric workloads, and Power BI integration Validate ETL/ELT processes, migrated datasets, and performance optimisation approaches Ensure data governance, security, privacy, and quality standards are embedded from day one Confidently challenge vendors, call out risks, and keep ...

NetSuite Developer

Hiring Organisation
IT Works Recruitment LTD
Location
Slough, Berkshire, UK
Employment Type
Full-time
closely with finance, operations, and IT teams to translate requirements into scalable customizations, integrations, and enhancements. This role focuses on SuiteScript development, system integrations, performance optimization, and ongoing platform support to ensure NetSuite runs efficiently, securely, and in line with best practices. ...

NetSuite Developer

Hiring Organisation
IT Works Recruitment LTD
Location
Reading, Berkshire, UK
Employment Type
Full-time
closely with finance, operations, and IT teams to translate requirements into scalable customizations, integrations, and enhancements. This role focuses on SuiteScript development, system integrations, performance optimization, and ongoing platform support to ensure NetSuite runs efficiently, securely, and in line with best practices. ...

Senior Software Developer

Hiring Organisation
BGC Group
Location
Slough, Berkshire, UK
Employment Type
Full-time
structures, and optimization techniques Understanding of NUMA architecture and NUMA-aware programming Proven track record developing client/server applications Skilled in troubleshooting and performance optimization Working knowledge of financial instruments including Fixed Income, Money Markets, and Derivatives Experience with kernel bypass network drivers (e.g., Solarflare) Technology Stack Linux ...

BMC Helix Technical Delivery Authority

Hiring Organisation
KBC Technologies UK LTD
Location
Reading, Berkshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
reporting, stakeholder communication, and escalation management . Validate solution readiness through E2E testing, UAT, and go-live support . Implement monitoring, health checks, and performance optimization for ITSM and CMDB modules. Identify opportunities for automation and continuous process improvement . Required Skills & Experience 5+ years of hands-on experience ...

Product Engineer (Backend)

Hiring Organisation
Granola
Location
Slough, Berkshire, UK
Employment Type
Full-time
evolution and scaling of our backend infrastructure Design and implement performant APIs and services Build infrastructure to support cutting-edge AI capabilities Optimise database performance and query efficiency Continuously improve reliability and observability through enhanced monitoring and alerting Collaborate cross-functionally to ensure our infrastructure supports continuous product innovation … using Terraform) Deep knowledge of relational databases (we use PostgreSQL) Familiarity with serverless architectures (we love lambdas!) Solid understanding of security best practices and performance optimisation As a person, you... Are first and foremost a builder Are excited to work in-person from our office in London (most ...

Forward Deployed Engineer (Palantir)

Hiring Organisation
ConSol Partners
Location
Slough, Berkshire, UK
Employment Type
Full-time
Ontology, Workshop, OSDK, Code Repositories, Actions, and AIP/agentic capabilities - you can build production-grade applications not just prototypes Production deployment experience including performance optimisation, data pipeline architecture, permissioning at scale, audit requirements, and operational maintenance ...

Senior Unity Developer

Hiring Organisation
The Developer Link
Location
Slough, Berkshire, UK
Employment Type
Full-time
features from design through to launch. Projects include: Core gameplay and logic systems Level and character development UI and live event systems Performance optimization and profiling You'll report to the Tech Director and join a 16-person global engineering team. What We're Looking For 5+ years' Unity ...

Data Engineer

Hiring Organisation
Vivo Talent Solutions
Location
Slough, Berkshire, UK
Employment Type
Full-time
build, and maintain scalable data pipelines and ETL processes Integrate structured and unstructured data from multiple internal and external sources Ensure data quality, consistency, performance, and security across platforms Collaborate with analytics engineers, data analysts, and stakeholders to support data modelling and transformation Monitor, optimise, and troubleshoot data infrastructure … manage robust data infrastructure for large-scale data ingestion and processing Develop automated, reliable data pipelines aligned to best practices Optimise ETL workflows for performance and scalability Implement data governance, access controls, and security standards Support self-service analytics by enabling clean, well-structured datasets Proactively identify and resolve ...

Data Engineer

Hiring Organisation
Cerberus Capital Management
Location
Slough, Berkshire, UK
Employment Type
Full-time
software engineers to ensure seamless data integration and availability for predictive modeling and business intelligence. Optimize data storage and processing in Azure environments for performance, reliability, and cost-efficiency. Implement best practices for data modeling, governance, and security across all platforms. Troubleshoot and enhance existing pipelines to improve scalability … love to hear from you. Strong technical foundation: Degree in a STEM field (or equivalent experience) with hands-on experience in production environments, emphasizing performance optimization and code quality. Python expertise: Advanced proficiency in Python for data engineering, data wrangling and pipeline development. Cloud Platforms: Hands-on experience working ...

Java & AWS Architect

Hiring Organisation
Ampstek
Location
Slough, Berkshire, UK
Employment Type
Full-time
ideal candidate has deep expertise in Java, Spring Boot, Microservices, AWS architecture, and DevOps, with a strong track record of enterprise-grade solution design, performance optimization, and cloud-native modernization. Key Responsibilities Architecture & Design Define end-to-end architecture for microservices, APIs, integration patterns, and data flows. Create solution … blueprints, sequence diagrams, and cloud reference architectures (multi-account, VPC, networking, security). Drive non-functional requirements (scalability, availability, performance, reliability, DR, observability). Cloud & Platform Architect secure, cost-optimized solutions using AWS services (EKS/ECS, Lambda, API Gateway, ALB/NLB, RDS/Aurora, DynamoDB, S3, ElastiCache ...

Java Developer - Low Latency

Hiring Organisation
HCLTech
Location
Slough, Berkshire, UK
Employment Type
Full-time
development, testing, and maintenance of low-latency Java applications. - Collaborate with cross-functional teams to gather requirements and design system architecture. - Optimize application performance and troubleshoot latency issues. - Mentor junior developers and ensure adherence to best coding practices. - Participate in code reviews and provide constructive feedback. - Stay updated with … Science, Engineering, or a related field. - Proven experience in Java development, with a focus on low-latency systems. - Strong understanding of multithreading, concurrency, and performance optimization. - Experience with frameworks and libraries such as Spring, Hibernate, and Netty. - Familiarity with distributed systems and network protocols. - Excellent problem-solving skills ...

Senior Python Software Engineer - £90k - £100k

Hiring Organisation
Creo Recruitment
Location
Slough, Berkshire, UK
Employment Type
Full-time
Champion best practices for testing, observability, and security. Review critical PRs and guide technical decisions across the team. Operate and improve production systems: Monitor performance, reliability, and cost efficiency. Lead incident response and drive continuous improvement. Mentor and grow others: Support engineers through pairing, feedback, and documentation to strengthen … production systems using Python on AWS. Strong understanding of distributed systems, API design, and event-driven architectures. Deep knowledge of system observability, logging, and performance optimisation. Familiarity with modern security and data-privacy best practices. Excellent communicator who can document and articulate technical trade-offs clearly. Behaviours & Attributes Ownership ...

Databricks Architect

Hiring Organisation
Tredence Inc
Location
Slough, Berkshire, UK
Employment Type
Full-time
Lakehouse architecture, big data engineering, cloud ecosystems, and enterprise data strategy. The ideal candidate will partner with business and technology leaders to deliver high-performance data systems that support analytics, AI/ML, and real-time insights. Key Responsibilities Architecture & Solution Design Architect end-to-end Databricks Lakehouse solutions … including data ingestion, ETL/ELT pipelines, Delta Lake, data warehousing, and data governance frameworks. Define and enforce best practices, security standards, and performance optimization across Databricks workloads. Design scalable big data architectures leveraging Spark, Delta Live Tables, Unity Catalog, and MLflow. Lead cloud architecture design on Azure/ ...

AWS Developer

Hiring Organisation
Empiric
Location
Reading, Berkshire, UK
Employment Type
Full-time
with full working rights. You'll work across a modern AWS ecosystem, contributing to new feature development, architecture decisions, automation, and performance optimisation. Tech Stack You'll Work With You'll be hands-on with a wide range of AWS services, including: Compute & Serverless: Lambda, EC2 Networking & Security … scalable APIs (REST & GraphQL) Integrate event-driven workflows via EventBridge, SNS, and SQS Implement cloud-native authentication and authorisation using Cognito & IAM Optimise performance, reliability, and cost efficiency Work closely with engineering, product, and DevOps functions Ensure best practices in monitoring, logging, and security What We're Looking ...

Java Software Engineer (Tier 1 Investment Bank)

Hiring Organisation
Radley James
Location
Slough, Berkshire, UK
Employment Type
Full-time
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 … 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 ...

Senior Full Stack Developer | C# & React | Greenfield Trading Platform | London, Hybrid | Up to £120k + Bonus, Benefits

Hiring Organisation
VirtueTech Recruitment Group
Location
Slough, Berkshire, UK
Employment Type
Full-time
embarking on an exciting initiative to rebuild and enhance their trading technology stack. This transformation includes Clearing, Risk, and Click & Trade platforms, focusing on performance, scalability, and real-time data capabilities to give traders a competitive edge. The Role This is an exciting opportunity to work on real-time … develop, and maintain scalable applications within the trading ecosystem. Work across the full stack, with a primary focus on C# back-end development. Ensure performance, maintainability, and testability of all solutions. Work closely with business users to understand requirements and deliver high-impact solutions. Stay up to date with ...