22 of 22 Performance Optimisation Jobs in the City of 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 ...

Principal Engineer

Hiring Organisation
Arrive
Location
City Of London, England, United Kingdom
integrate into the Arrive Global Platform, we are looking for a Staff Engineer. We are transitioning from a established PHP foundation to a high-performance, modern ecosystem built on Java and Kotlin . We need a technical heavyweight who can navigate our roots while architecting the future of global … platform while collaborating closely with engineers, product teams, and stakeholders. Your work will include: Leading architecture discussions and technical decision-making Improving performance, scalability, and reliability of our platform Diagnosing complex issues across local, pre-release, and production environments Driving engineering best practices across DevSecOps, CI/ ...

Senior Software Developer

Hiring Organisation
Spectrum It Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
that support real-world trading strategies. As a senior member of the team, you will contribute both technically and strategically, helping shape development standards, performance optimisation, and system scalability. You will primarily work within a C# .NET SQL Server ASP.NET ecosystem, developing high-performance, reliable, and maintainable … applications. Key Responsibilities Design, develop, and maintain high-performance applications in C# and .NET Lead architectural discussions and contribute to technical direction Build scalable, reliable systems to support automated trading and research Develop and optimise database solutions (SQL Server or equivalent) Improve performance, reliability, and automation across systems ...

Principal Engineer - Comms Surveillance

Hiring Organisation
Marlin Selection
Location
City of London, London, United Kingdom
Employment Type
Permanent
leader within the Surveillance Technology team. Provide expert oversight across analysis, architecture, design and delivery of complex systems. Architect, build, and evolve scalable, high-performance solutions for Communications Surveillance and Record Keeping. Lead engineering standards: architecture reviews, vendor assessments, impact analysis, and automated testing. Mentor and develop engineering talent … Record Keeping. Translate complex technical concepts for both technical and non-technical stakeholders. Support agile planning, estimation and prioritisation. Identify opportunities for system optimisation, refactoring, and alignment to target architectures. Manage technical risks, issues and dependencies. Benchmark against peer organisations to ensure alignment with regulatory and industry expectations. Experience ...

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 ...

Senior BI and Data Analyst

Hiring Organisation
Bovis
Location
City of London, London, United Kingdom
fluent in the full Microsoft data stack. You will be the primary developer of enterprise reporting across commercial, financial, operational, and project performance domains - working directly with business stakeholders to turn complex construction data into trusted, performant analytical outputs. You will work within a small, high-calibre Digital … through to production deployment, across all business domains. Develop complex semantic models with production-quality DAX - including advanced time intelligence, calculation groups, UDFs and performance-optimised measures at scale. Write advanced M/Python transformations, including custom functions, parameterised queries, and API connections to source systems. Manage model definitions ...

Senior Data Engineer - Microsoft Fabric

Hiring Organisation
Harvey Nash IT Recruitment UK
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 80,000 - 90,000 Annual
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 ...

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 ...

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 ...

Data Bricks Product Owner, Microsoft Fabric Product Owner, Part Remote

Hiring Organisation
Carrington Recruitment Solutions Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Fabric etc) before moving into Product Ownership Technical proficiency:Familiarity with Azure services (e.g., Data Lake, Synapse, Fabric) and Databricks for data engineering, analytics, performance optimisation, and governance Development Framework experience within Microsoft Stack Technologies Experience with implementing and optimising scalable cloud infrastructure is highly valued Backlog management ...

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 ...

Data Engineer (Microsoft Fabric)

Hiring Organisation
Movar Reply
Location
City of London, London, United Kingdom
Design and build scalable data pipelines and lakehouse/warehouse models on Microsoft Fabric (OneLake, Lakehouse, Data Warehouse, Data Factory). Implement medallion architectures, performance optimisation, and cost management for analytics and AI workloads. Define and enforce data engineering standards, governance, and security in an enterprise environment. Mentor ...

Celonis Data Engineer x2 - 6 months

Hiring Organisation
Hawksworth
Location
City of London, London, United Kingdom
data models and PQL logic that supports end‐to‐end visibility. Top 5 responsibilities : Data Engineering & Event Log Construction Data Model & Data Pipeline Development Performance Optimization & Quality Collaboration & Technical Documentation Governance & Engineering Best Practices Experience : 3+ years Celonis Process Mining experience Frameworks - CCPM & OCPM SQL, Python, data modeling ...

International Partnerships Manager

Hiring Organisation
Zachary Daniels
Location
City of London, London, United Kingdom
Employment Type
Permanent
Marketing, Brand, and Regional teams. Act as the primary external-facing marketing lead for strategic partners, driving co-marketing planning, launch execution, and ongoing performance optimization. Retail & Launch Amplification (Partnered Ownership) Partner closely with the Retail team toamplify international retail launches through strategic partners and co-marketing programs. Identify ...

Data Engineering Lead

Hiring Organisation
Novatus Global
Location
City of London, London, United Kingdom
Ensure pipelines are auditable, lineage-aware, idempotent, and resilient in regulated environments. Implement robust data quality controls including testing, validation, monitoring, and alerting. Drive performance optimization across Spark and Snowflake workloads. Partner with Product, Engineering, DevOps, and Regulatory teams to translate requirements into scalable technical designs. Improve engineering standards … your partner, and your child(ren) Employee Assistance Program Enhanced parental leave (maternity & paternity) Professional qualification sponsorship Accelerated career progression based on performance, not tenure Holiday entitlement increases with tenure Flexible hours with core collaboration time Paid volunteering leave Gym & fitness discounts Quarterly socials, and office snacks & drinks Interest ...

Full Stack Engineer

Hiring Organisation
Few&Far
Location
City of London, Greater London, UK
fast-paced environment, ideal for someone who enjoys solving complex problems and working collaboratively with engineering and product teams. Key Responsibilities Build scalable, high-performance features for a modern SaaS platform Optimize existing systems for speed, usability, and reliability Lead technical decisions and mentor junior engineers Collaborate closely with … experience in full-stack web development Proven track record delivering high-quality SaaS products at scale Strong understanding of UI/UX principles and performance optimization Excellent communication, problem-solving, and leadership skills Passion for writing clean, maintainable, and scalable code Bonus: Experience in financial technology or asset management ...

Solution Architect

Hiring Organisation
MFA Talent Services
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£95,000
certifications, including AWS, Azure, and GCP, along with extensive in-house courses and a mentoring program. Key Responsibilities Design and implement scalable, high-performance architectures for diverse client projects, ensuring alignment with business objectives and technical requirements. Collaborate with clients to gather and analyse requirements, translating them into robust … accessible. Provide technical leadership and mentorship to development teams, guiding them through best practices in software engineering and architecture. Conduct regular code reviews and performance optimisations to ensure high-quality, efficient solutions. Stay up-to-date with emerging technologies and industry trends, evaluating their potential impact on client projects ...

Qlik Sense BI Developer

Hiring Organisation
Asenium Consulting
Location
City of London, Greater London, UK
that transform raw data into actionable insights. Your work enables business stakeholders to make informed decisions through intuitive dashboards and reports that reflect key performance metrics. Key Responsibilities: Requirement Gathering: Collaborate with business and data teams to understand reporting needs and translate them into technical specifications. Data Integration & Modeling … various sources to ensure data accuracy and performance. Dashboard Development: Build interactive, user-friendly dashboards and reports using Qlik Sense scripting and visualization tools. Performance Optimization: Enhance application performance through script optimization and efficient data modeling. Testing & QA: Conduct rigorous testing and support user acceptance to ensure data ...

LLM Engineer

Hiring Organisation
Ultralytics
Location
City of London, London, United Kingdom
. Designing and maintaining efficient data pipelines and vector storage solutions using MongoDB Atlas Vector Search. Fine-tuning LLMs on custom datasets to enhance performance for specialized tasks related to our documentation and user support. Collaborating with our YOLO development team to explore and build innovative multi-modal solutions. … full RAG pipeline, including vector embeddings , rerankers , and data indexing in databases like MongoDB. Practical knowledge of LLM fine-tuning, prompt engineering, and performance optimization. Familiarity with MLOps principles and tools, including CI/CD with GitHub Actions . A strong interest in computer vision and an understanding ...

Power BI Engineer

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
maintain Power BI dashboards, datasets and reporting solutions that meet business requirements. • Translate stakeholder needs into actionable visual analytics that highlight trends and performance drivers. • Build and manage semantic models, including measures, KPIs and optimised relationships. • Write clear and efficient DAX to support calculations and time‐intelligence logic. • Work … range of data sources such as SQL databases, Azure services, Excel and APIs. • Apply governance best practices, including row‐level security, workspace management and performance optimisation. • Communicate insights clearly to non‐technical teams and support the adoption of reporting outputs. Your Skills and Experience • Strong commercial experience developing dashboards ...

Software engineer

Hiring Organisation
Alexander Chapman
Location
City of London, London, United Kingdom
trading desks across Credit, Rates, or FX . The Role You will be part of a team responsible for designing, building, and enhancing high-performance, low-latency trading platforms . Working closely with quants and traders, you will contribute directly to live trading strategies and core system infrastructure. … Responsibilities Develop and optimize high-performance Java-based trading systems Collaborate with quants and traders in a front-office environment Contribute to the design of low-latency, scalable architecture Enhance and support algorithmic trading platforms across asset classes Requirements Strong Java development experience (core Java, multithreading, performance optimization ...

ServiceNow Admin

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Change Management, Service Catalog, and Knowledge Management. Administer user access, roles, and permissions within the ServiceNow environment. Develop and manage ServiceNow reports, dashboards, and performance analytics to track system usage and optimize performance. Execute regular system maintenance duties such as patching, upgrades, and performance optimization. Deliver comprehensive user … expect: Salary - £25,000 - £30,000 28 days holiday Company sick pay scheme Pension match contribution Life insurance policies Great development opportunities to progress Performance based annual Christmas bonus Pay rise consideration at end of year ...