1 to 25 of 41 Performance Optimisation Jobs in Central London

C++ Trading Platform Developer

Hiring Organisation
Radley James
Location
City of London, London, United Kingdom
looking for a C++ Trading Platform Developer to join its London-based team. This is an opportunity to work at the intersection of high-performance engineering and digital asset markets, building and scaling a global trading platform that operates across dozens of exchanges worldwide. The environment combines the technical … platform spanning multiple continents, covering: Real-time market data capture Order entry and connectivity across numerous exchanges Robust networking and monitoring systems Scaling and performance optimisation of core infrastructure The tech stack is primarily C++ and Python, running on Linux across both development and production. The focus ...

Senior Front End Developer

Hiring Organisation
Liberty
Location
City of London, London, United Kingdom
would be beneficial. Key Responsibilities: Lead front-end development across LibertyLondon.com (Salesforce Commerce Cloud) and the Fabrics site (WordPress), ensuring high standards of quality, performance, and maintainability. Translate design systems, wireframes, and high-fidelity designs into robust, scalable, and accessible front-end solutions. Own and influence front-end architectural … discovery and planning process. Design, build, and deploy MVT and A/B complex experiments using Dynamic Yield, collaborating with analytics and optimisation teams to improve conversion and usability. Support HTML email development, ensuring consistency, accessibility, and responsiveness across clients and devices. Champion front-end best practices, including performance ...

Senior Full Stack Engineer - Remote

Hiring Organisation
Birchwell Associates Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
product-focused environment where engineering decisions have direct impact at scale. The team operates at pace, with a strong emphasis on ownership, performance, and continuous iteration. The Role - Remote Europe (CET 3 We are seeking Senior Backend focused Full Stack Engineers to join a fully remote, cross-functional team … Responsibilities Design, build, and maintain scalable backend systems Work on high-traffic applications used by a global user base Contribute to architecture and performance optimisation Collaborate with cross-functional teams including Product, Design, and DevOps Take ownership of features from concept through to deployment Requirements 5+ years ...

Software Architects – Data & Performance – .NET, Azure, SQL, Cloud Architecture –(Edinburgh/UK Remote) 🌳🌳🌳 🚀

Hiring Organisation
Areti Group | B Corp™
Location
City of London, London, United Kingdom
Software Architects – Data & Performance – .NET, Azure, SQL, Cloud Architecture –(Edinburgh/UK Remote) 🌳🌳🌳 🚀 Areti Group | B CorpTM Scotland, United Kingdom Software Architect – Data & Performance – .NET, Azure, SQL – Scotland/UK Remote – Award-Winning, High-Growth AI SaaS Scale-Up Award-Winning, High-Growth Tech Scale-Up | AI-Driven … product. Your role will involve the following: 🌳 Analysing existing systems against future roadmap requirements 🌳 Defining scalable architectural solutions for high-volume data 🌳 Leading data performance and optimisation initiatives 🌳 Embedding security and privacy-by-design principles 🌳 Delivering and reviewing cloud-native Azure solutions 🌳 Driving architectural change within established codebases ...

Cloud Engineer

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
responsibilities: Design, build, and maintain cloud infrastructure (primarily Azure and GCP) Develop and manage CI/CD pipelines and automation Implement monitoring, alerting, and performance optimisation Ensure security, compliance, and system reliability Troubleshoot production issues and provide operational support Collaborate with architects, developers, and stakeholders Champion DevOps culture ...

Lead Data Engineer (Ref: 196438)

Hiring Organisation
Forsyth Barnes
Location
City of London, London, United Kingdom
leadership position focused on building robust, scalable, and governed data solutions using modern cloud technologies. The Role Own the end-to-end design, build, optimisation, and support of scalable Spark/PySpark data pipelines (batch and streaming) Define and implement lakehouse architecture standards (medallion model: bronze, silver, gold), including … reconciliation) Drive CI/CD best practices for data platforms (infrastructure as code, automated testing, versioning, environment promotion) Mentor engineers on distributed data processing, performance optimisation, and cost efficiency Collaborate with data science, product, and compliance teams to translate requirements into scalable data solutions Required Skills & Experience Strong ...

Senior Data Engineer

Hiring Organisation
WSS Associates
Location
City of London, London, United Kingdom
smooth operation of data workflows, and providing analytical support to various departments. This role requires a strong understanding of data architecture, data modelling, and performance optimisation. The role will contribute significantly to the company’s success. There are opportunities for professional development, such as training programs, certifications, and career ...

Data Engineer

Hiring Organisation
Lorien
Location
City of London, London, United Kingdom
including Azure Databricks, Azure Data Lake Storage, and Azure Data Factory. Advanced proficiency in SQL, Python, and Spark (PySpark), with a strong focus on performance optimization and distributed processing. Proven experience in CI/CD practices using industry-standard tools (e.g., GitHub Actions, Azure DevOps). Strong understanding ...

Lead Data Engineer - Hybrid working

Hiring Organisation
Ashdown Group
Location
Central London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
models across Snowflake, Databricks, and cloud environments (AWS/GCP). Working closely with Data Science, Product, and Analytics teams, youll ensure reliable, high-performance data flows that power AI and analytics products. Alongside deep technical delivery, youll be responsible for leading the junior engineers and near shore partners … architectural direction and best practices. Key Responsibilities Design and maintain scalable data architectures across Snowflake and Databricks Lead schema design, dimensional modelling, and SQL performance optimisation Build robust ETL/ELT pipelines Develop resilient API ingestion workflows Implement data quality frameworks and enforce data contracts Build CI/ ...

Senior Data Engineer - Microsoft Fabric

Hiring Organisation
Harvey Nash
Location
City of London, Greater London, UK
architecture, develop scalable analytics solutions, and stay hands-on. Responsibilities include delivering Fabric solutions (OneLake, Lakehouse, Warehouses, Power BI), leading architecture and performance optimisation, and enabling advanced analytics and machine learning with Fabric and Azure ML. Key skills and responsibilities, Demonstrated hands-on experience with Microsoft Fabric … leadership and effective stakeholder engagement. Design and deliver comprehensive Fabric solutions, including OneLake, Lakehouse, Warehouses, and Power BI. Lead architectural design, capacity planning, and performance optimization efforts. Facilitate advanced analytics and machine learning initiatives utilising Fabric and Azure ML. Implement governance, security, and DevOps best practices. Mentor engineers ...

🌳 Hands On Software Engineering Managers/Tech leads – Data & Performance - REMOTE🌳🌳🌳🌳

Hiring Organisation
Areti Group | B Corp™
Location
City of London, London, United Kingdom
Hands On Software Engineering Managers/Tech leads – C#/.NET/AZURE - Data & Performance 🌳 This is a hands-on technical leadership role with a strong focus on data architecture, application performance, and platform scalability. You’ll lead a small senior engineering team, combining technical delivery with people … usage, and real-time customer insight . 🔧 What You’ll Do 🌳 Lead and support a newly forming team focused on data architecture and application optimisation 🌳 Drive structural change within a large, established codebase to support scale 🌳 Influence architecture, design, and technology decisions across the platform 🌳 Partner closely with Product ...

Data Platform Analyst (Technical BA / Data Product) – Tier 1 Global Hedge Fund – London – Excellent Comp + Bonus

Hiring Organisation
Mondrian Alpha
Location
City of London, London, United Kingdom
looking for 7–15 years’ experience in financial services (buy-side or trading environments preferred) Strong expertise in SQL and data modelling (schemas, normalization, performance optimisation) Deep experience working with market data across asset classes , including vendor integration and financial identifier mapping (ISIN, CUSIP, etc.) Strong understanding ...

Fullstack Software Engineers – C#, .NET, Vue.js, JavaScript, Azure, Testing, Remote - Edinburgh/Scotland - Award-Winning, High-Growth Tech Scale-Up 🌳🌳🌳 🚀

Hiring Organisation
Areti Group | B Corp™
Location
Central London / West End, London, United Kingdom
have): RabbitMQ, SignalR, broader Azure services 🌳 Azure Cognitive Search 🌳 Data pipelines (Fabric or similar) 🌳 Search technologies (Lucene, Elastic, NoSQL, MSSQL) 🌳 MS SQL views and performance optimisation 🌟 About You 🌳 A strong full-stack engineer with deep problem-solving instincts 🌳 Skilled at breaking down complexity into clear actions 🌳 Emotionally intelligent ...

Full Stack Engineer

Hiring Organisation
Affinity Labs
Location
City of London, London, United Kingdom
Contribute meaningfully to product and architecture discussions; be heard in debate and align to unified decisions. Own operability: CI/CD, monitoring/alerting, performance optimisation, safe rollbacks. Build and integrate AI features (LLM/agent workflows, RAG/vector DB integration, eval hooks, cost/safety guardrails ...

UI Engineer

Hiring Organisation
mthree
Location
City of London, London, United Kingdom
Experience building large-scale, enterprise-grade applications. Knowledge of state management frameworks (Redux, Context API, etc.). Understanding of UI/UX principles and performance optimization. Familiarity with testing frameworks and CI/CD pipelines. Excellent problem-solving and collaboration skills. Nice to have: Financial services or trading systems ...

Senior Golang Engineer

Hiring Organisation
PCR Digital
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day Inside IR35
years of relevant industry experience Significant experience with Golang and Git/GitHub SCM Strong experience with coding techniques and standard methodologies for security, performance optimization, and ease-of-use Experience in utilisation and deployment of cloud technologies in AWS or GCP , experience in container technologies such as Docker … through analytics dashboards Passion for high-quality code, tests, CI/CD, documentation, and production services Track record of driving improvements in code quality, performance , etc. Experience leveraging ORMs to interact with databases efficiently Familiarity with Python, Java, Swift, C, C++ and/or Objective-C ; and JavaScript ...

Senior Full Stack Engineer

Hiring Organisation
RSMB
Location
Central London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
Senior Full Stack Engineer role: This role sits within the Development team in the Technology department and is critical to delivering scalable, high-performance, data-driven products. You will work across the full stack, contributing to backend services, APIs, and frontend applications, while collaborating closely with data science, product … focused mindset. Key responsibilities as our Senior Full Stack Engineer will include: Full Stack Development & System Design Designing and building scalable, maintainable, and high-performance applications across backend and frontend layers. Developing backend services using Python and SQL, with integration into Azure-based infrastructure and Snowflake data platforms. Building ...

Core Engineer (C++)

Hiring Organisation
NJF Global Holdings Ltd
Location
City of London, London, United Kingdom
looking to work on problems that genuinely test the limits of performance, scale, and engineering craft? We are building a small, elite team of systems engineers to design and evolve the core infrastructure that powers a highly sophisticated trading platform. This is not application level development. This is deep … work on performance critical systems where nanoseconds matter, correctness is non negotiable, and your decisions directly impact real world outcomes. You will be working on the foundations of the trading stack, including market data, execution, simulation, and internal infrastructure. The problems are hard, the standards are high ...

Python Developer

Hiring Organisation
Radley James
Location
City of London, London, United Kingdom
providing Python-based solutions that directly impact the profitability of the business. This is an exciting opportunity to work in a fast-paced, high-performance environment where you can push the boundaries of technology in financial markets. Key Responsibilities: Design, develop, and maintain highly efficient Python-based applications … commodities trading, risk management, and real-time data analysis. Build scalable, high-performance data pipelines to process large datasets from multiple sources, including real-time market data and fundamental data. Implement robust APIs and microservices to integrate trading systems, analytics platforms, and external data providers. Optimize performance ...

Contract Android Engineer - Central Government Project (Inside IR35)

Hiring Organisation
Morson Edge
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£450 - 500 per day
handling sensitive data Desirable Skills: Experience with modern Android architecture (e.g., MVVM, Clean Architecture) Familiarity with CI/CD pipelines and automated testing Performance optimisation and app scalability experience Experience working on high-traffic or mission-critical applications What You'll Bring: A strong focus on delivery ...

Java Consultant

Hiring Organisation
Stanford Black Limited
Location
City of London, London, United Kingdom
ALERT 🚨 – Lead Java Contractor 💻 Java/Distributed Systems/Event-Driven Architecture – Trading & Portfolio Tech 🕑 10+ years building high-performance, data-intensive trading systems 📍London (front-office, high-impact engineering environment) 💰 Highly competitive day rate Highlights: 🔷 Lead the design and build of scalable trading & portfolio management systems … desk 🔷 Work directly with portfolio managers and traders to deliver real-time, business-critical technology 🔷 Architect event-driven, distributed systems with strong focus on performance, resilience, and observability 🔷 Drive technical direction across microservices, data streaming, and system design in a fast-moving environment The Role: Join a high-calibre ...

Field CTO – Cloud & Applications

Hiring Organisation
Microland Limited
Location
City of London, London, United Kingdom
application platforms transformation and also long-term managed capabilities. It helps clients connect technology decisions to business outcomes such as resilience, agility, cost optimisation and operational efficiency. This role is a blend of technology leadership, executive advisory and pre-sales enablement, complementing sales, delivery and architecture teams by bringing … architectures and platform engineering DevSecOps, CI/CD and developer productivity at scale Enterprise-scale application and digital managed services, including cost, reliability and performance optimisation Key Responsibilities Executive Advisory and Client Engagement Engage confidently with senior client stakeholders across enterprise accounts. Lead executive-level discussions on cloud ...

Software Developer (React) - Up to £120,000 + Bonus + Package

Hiring Organisation
Hunter Bond
Location
City of London, London, United Kingdom
people genuinely love what they work on Friendly, tight-knit engineering culture Flat structure with clear and achievable progression Exposure to cutting-edge tooling, performance optimisation, and large-scale systems ...

Senior Data Engineer

Hiring Organisation
Searchability NS&D
Location
City of London, London, United Kingdom
with core data engineering tools and technologies (e.g. ETL/ELT pipelines, data warehouses, orchestration tools) Strong understanding of data modelling, data quality, and performance optimisation Desirable Experience Experience with Palantir (Foundry, Gotham) Willingness and aptitude to learn Palantir technologies on the job Background working in defence, government ...

Global Banking & Markets - Software Engineer - Vice President - London

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
Docker), and JVM tuning for containerized workloads. Observability & Operations: Application instrumentation (metrics, distributed tracing, structured logging) and production support in high‐availability environments. Data & Performance: Data modeling, SQL/NoSQL databases, caching strategies, and performance optimization in latency‐sensitive systems. Security: Enterprise security patterns; authentication protocols, mutual ...