76 to 100 of 156 Performance Tuning Jobs in the City of London

strategies. You’ll contribute to every part of the investment pipeline—from research tooling and data infrastructure to real-time trading systems. Key Responsibilities: Design, develop, and optimize high-performance trading tools and data pipelines using C# and ideally Python Build research platforms that empower quantitative analysts and strategists Integrate and manage large, complex datasets from a variety of … robustness and scalability in both real-time and batch environments What We’re Looking For: Strong programming experience with C# Solid understanding of software engineering principles, design patterns, and performance tuning Experience in financial markets (equities, futures, FX, etc.) is a plus, but not required Familiarity with data science tools, APIs, and time-series databases is beneficial Self … starter attitude with a sharp eye for detail and a high level of ownership Why Join? Competitive compensation + performance bonuses Direct impact on trading and research performance Flat, collaborative culture with exposure to senior stakeholders State-of-the-art technology stack and hardware Opportunity to work on greenfield projects in a fast-moving environment More ❯

global investment manager that’s serious about modern engineering and data-driven investing. Our client is looking for an experienced Senior/Principal Python Developer to help build high-performance systems that power investment decisions, analytics, and portfolio operations. The Opportunity Be part of a cross-functional engineering team working closely with quants, data scientists and portfolio managers to … Design, develop and maintain scalable Python applications supporting investment and analytics workflows. Translate complex financial requirements into elegant, maintainable code in partnership with business and quant teams. Lead on performance tuning, code quality, testing, and CI/CD practices. Improve latency, reliability and observability of data-driven processes. Contribute to modernising legacy systems towards cloud-native, distributed architectures. … Why Join Work for a respected global investment firm investing in technology and modern engineering practices. Hybrid working (London-based; typically 2–3 days in office ). Competitive salary, performance-based bonus and strong benefits. Inclusive, learning-focused culture where you can have real impact on investment systems. If you’re a hands-on Python engineer who enjoys solving More ❯

global investment manager that’s serious about modern engineering and data-driven investing. Our client is looking for an experienced Senior/Principal Python Developer to help build high-performance systems that power investment decisions, analytics, and portfolio operations. The Opportunity Be part of a cross-functional engineering team working closely with quants, data scientists and portfolio managers to … Design, develop and maintain scalable Python applications supporting investment and analytics workflows. Translate complex financial requirements into elegant, maintainable code in partnership with business and quant teams. Lead on performance tuning, code quality, testing, and CI/CD practices. Improve latency, reliability and observability of data-driven processes. Contribute to modernising legacy systems towards cloud-native, distributed architectures. … Why Join Work for a respected global investment firm investing in technology and modern engineering practices. Hybrid working (London-based; typically 2–3 days in office ). Competitive salary, performance-based bonus and strong benefits. Inclusive, learning-focused culture where you can have real impact on investment systems. If you’re a hands-on Python engineer who enjoys solving More ❯

experience with: AVS, OpenJVS, Open Components, Java, SQL, C#, Python Connex Gateways for trade booking and market data integration Real-Time Position Engine (RTPE) and Automated Position Management (APM) Performance tuning and optimization for EOD batch processing If interested please apply here or reacj out to me on +44 More ❯

experience with: AVS, OpenJVS, Open Components, Java, SQL, C#, Python Connex Gateways for trade booking and market data integration Real-Time Position Engine (RTPE) and Automated Position Management (APM) Performance tuning and optimization for EOD batch processing If interested please apply here or reacj out to me on +44 More ❯

based data platforms (Azure, AWS, or GCP). Prior experience in a senior contributor capacity, providing technical direction and oversight. Experience with data modeling, data lakes/warehouses, and performance tuning is highly desirable. How to Apply Interviews are starting immediately. Please apply here. More ❯

software development and SDLC. Task orientated, able to work to fixed deadlines and SLAs. Previous development experience within Python, ideally with experience in Flask and REST APIs. Proficient with performance tuning, debugging, and secure coding practices. Strong Microsoft Azure Integration Services (e.g. LogicApps, ServiceBus, API Management etc). In-depth understanding of system design, CI/CD, GIT More ❯

software development and SDLC. Task orientated, able to work to fixed deadlines and SLAs. Previous development experience within Python, ideally with experience in Flask and REST APIs. Proficient with performance tuning, debugging, and secure coding practices. Strong Microsoft Azure Integration Services (e.g. LogicApps, ServiceBus, API Management etc). In-depth understanding of system design, CI/CD, GIT More ❯

Institutional | London (Hybrid) | Up to £100k Albert Bow has partnered with a fast-growing global fintech platform transforming how institutional clients access digital assets. The team is building high-performance, low-latency trading systems at the forefront of financial services. The Role: Join a dedicated, high-performing engineering team to build and maintain Order Management Systems, exchange gateways, and … risk management systems. You’ll work on critical infrastructure powering institutional trading. What You’ll Do: Build scalable, high-performance trading services using Python and SQL Develop and maintain OMS and exchange connectivity systems Apply best practices in multithreading, network programming, and performance tuning Collaborate across teams to improve system reliability and efficiency Contribute to architecture and … environment What You’ll Bring: Strong Python and SQL experience Experience with low-latency, high-throughput systems (trading, fintech, or real-time applications) Familiarity with multithreading, network programming, and performance optimization Understanding of algorithms, data structures, and distributed systems Experience in trading systems or financial infrastructure is a plus, but blockchain/crypto experience is not required Passion for More ❯

Institutional | London (Hybrid) | Up to £100k Albert Bow has partnered with a fast-growing global fintech platform transforming how institutional clients access digital assets. The team is building high-performance, low-latency trading systems at the forefront of financial services. The Role: Join a dedicated, high-performing engineering team to build and maintain Order Management Systems, exchange gateways, and … risk management systems. You’ll work on critical infrastructure powering institutional trading. What You’ll Do: Build scalable, high-performance trading services using Python and SQL Develop and maintain OMS and exchange connectivity systems Apply best practices in multithreading, network programming, and performance tuning Collaborate across teams to improve system reliability and efficiency Contribute to architecture and … environment What You’ll Bring: Strong Python and SQL experience Experience with low-latency, high-throughput systems (trading, fintech, or real-time applications) Familiarity with multithreading, network programming, and performance optimization Understanding of algorithms, data structures, and distributed systems Experience in trading systems or financial infrastructure is a plus, but blockchain/crypto experience is not required Passion for More ❯

+ Pension/Bonus Join a leading financial technology and trading organisation driving innovation in electronic markets. As an eFX Software Engineer, you’ll design and deliver high-performance, low-latency trading solutions that underpin mission-critical systems. This role offers the chance to work on cutting-edge technology where speed, scalability, and resilience are key. About the Role … Lead the design and development of secure, high-performance eFX systems Define and evolve Java patterns and techniques optimised for ultra-low latency (<40μs) Architect fault-tolerant, scalable trading systems Influence technical strategy, architecture, and product roadmaps Collaborate with multiple teams to deliver best-in-class E-trading platforms Ensure all solutions meet security, compliance, and performance standards … level Java development, including low-GC and lock-free patterns Proven background in FX trading systems, pricing, and risk management Deep understanding of CPU architecture, cache optimisation, and Linux performance tuning Expertise in networking and messaging (TCP, UDP, Multicast, FIX) Knowledge of quantitative instruments and algorithmic trading Experience implementing controls in automated trading environments Skilled in TDD, automated More ❯

+ Pension/Bonus Join a leading financial technology and trading organisation driving innovation in electronic markets. As an eFX Software Engineer, you’ll design and deliver high-performance, low-latency trading solutions that underpin mission-critical systems. This role offers the chance to work on cutting-edge technology where speed, scalability, and resilience are key. About the Role … Lead the design and development of secure, high-performance eFX systems Define and evolve Java patterns and techniques optimised for ultra-low latency (<40μs) Architect fault-tolerant, scalable trading systems Influence technical strategy, architecture, and product roadmaps Collaborate with multiple teams to deliver best-in-class E-trading platforms Ensure all solutions meet security, compliance, and performance standards … level Java development, including low-GC and lock-free patterns Proven background in FX trading systems, pricing, and risk management Deep understanding of CPU architecture, cache optimisation, and Linux performance tuning Expertise in networking and messaging (TCP, UDP, Multicast, FIX) Knowledge of quantitative instruments and algorithmic trading Experience implementing controls in automated trading environments Skilled in TDD, automated More ❯

large-scale data platforms with a focus on ETL, Data Management, and Data Governance Develop and maintain Databricks Delta Live Tables (DLT) pipelines with strong emphasis on cost and performance optimisation Implement and manage structured streaming and real-time data processing solutions. Handle and process high volumes of data efficiently within Databricks Translate business requirements into technical delivery plans … solutions Lead a technical delivery team of 7–10 members, providing direction, guidance, and support throughout the project lifecycle Ensure best practices are followed in data architecture, governance, and performance tuning Drive continuous improvement in data engineering processes and platform scalability Required Skills & Experience: Proven experience in building multiple large-scale data platforms Deep expertise in Databricks, especially … Delta Live Tables (DLT) and structured streaming Strong understanding of data governance, data modeling, and pipeline orchestration Hands-on experience optimising Databricks workloads for performance and cost Excellent communication and collaboration skills to bridge business and technical teams Prior experience leading data engineering teams or project delivery squads This needs combining with a positive attitude and an ability to More ❯

large-scale data platforms with a focus on ETL, Data Management, and Data Governance Develop and maintain Databricks Delta Live Tables (DLT) pipelines with strong emphasis on cost and performance optimisation Implement and manage structured streaming and real-time data processing solutions. Handle and process high volumes of data efficiently within Databricks Translate business requirements into technical delivery plans … solutions Lead a technical delivery team of 7–10 members, providing direction, guidance, and support throughout the project lifecycle Ensure best practices are followed in data architecture, governance, and performance tuning Drive continuous improvement in data engineering processes and platform scalability Required Skills & Experience: Proven experience in building multiple large-scale data platforms Deep expertise in Databricks, especially … Delta Live Tables (DLT) and structured streaming Strong understanding of data governance, data modeling, and pipeline orchestration Hands-on experience optimising Databricks workloads for performance and cost Excellent communication and collaboration skills to bridge business and technical teams Prior experience leading data engineering teams or project delivery squads This needs combining with a positive attitude and an ability to More ❯

+ benefits/Bonus Join a leading financial technology and trading organisation driving innovation in electronic markets. As an eFX Software Engineer, you'll design and deliver high-performance, low-latency trading solutions that underpin mission-critical systems. This role offers the chance to work on cutting-edge technology where speed, scalability, and resilience are key. About the Role … Lead the design and development of secure, high-performance eFX systems Define and evolve Java patterns and techniques optimised for ultra-low latency (<40s) Architect fault-tolerant, scalable trading systems Influence technical strategy, architecture, and product roadmaps Collaborate with multiple teams to deliver best-in-class E-trading platforms Ensure all solutions meet security, compliance, and performance standards … level Java development, including low-GC and lock-free patterns Proven background in FX trading systems, pricing, and risk management Deep understanding of CPU architecture, cache optimisation, and Linux performance tuning Expertise in networking and messaging (TCP, UDP, Multicast, FIX) Knowledge of quantitative instruments and algorithmic trading Experience implementing controls in automated trading environments Skilled in TDD, automated More ❯

Lake) Automate and scale model training pipelines in close partnership with ML engineers Deploy, observe, and improve pipelines using Docker, Kubernetes, Terraform, or dbt Champion data reliability, scalability, and performance across the platform 🧩 The Tech Environment You’ll likely be working with some combination of: Languages: Python, Scala, Go Streaming: Kafka/Flink/Spark Structured Streaming Workflow orchestration … AWS/GCP/Azure 🌍 What They’re Looking For Proven experience building scalable data pipelines in real-time or near real-time environments Strong background in data architecture, performance tuning, and distributed systems Comfort working end-to-end - from data ingestion to model-ready outputs An interest in AI, ML ops, and data-driven product development Someone More ❯

including RBAC, SSO, token policies, and pseudonymisation frameworks Support batch and streaming data flows using technologies like Kafka, Airflow, and Terraform Monitor and optimise cloud resource usage to ensure performance and cost efficiency Collaborate with cross-functional teams on architecture decisions, technical designs, and data governance standards You Will Have: Proven hands-on expertise in data modelling with a … environments Strong understanding of governance frameworks, access controls, and data protection policies Familiarity with Databricks, Snowflake, AWS, and modern data infrastructure patterns Excellent SQL skills and a focus on performance tuning, data integrity, and reusable design patterns This is an opportunity to shape the blueprint of a data-driven organisation, working with cutting-edge cloud and AI technologies More ❯

Systems Software Engineer (Python) Are you a top-tier Software Engineer with a passion for high-performance systems and a knack for solving complex infrastructure challenges? We are seeking an elite developer to join a rapidly growing, highly respected HFT company that operates at the cutting edge of its industry. This isn't a typical infrastructure support role. Our … class blend of software development and systems knowledge: Python is essential, including building production-grade, highly reliable systems. A comprehensive understanding of the Linux operating system, including its internals, performance tuning, and low-level functionalities. Strong knowledge of networking concepts (TCP/IP, routing, load balancing, etc.) and experience troubleshooting and optimising network performance at the system … package, which commonly includes: Health and Wellness benefits like fully covered health insurance, dental, vision, life insurance, and mental health programs. Financial benefits such as a generous pension and performance bonuses. Office Perks including free daily meals, snacks, drinks, commuter benefits, a fitness stipend or on-site gym, and relocation assistance. If you are an experienced Systems Software Engineer More ❯

maintain the library of system prompts for ticket summarization, theme extraction, sentiment analysis, and qualitative insights Define reporting standards: Set quality bars for what makes a great dashboard (agent performance, app store trends, CSAT drivers, topic evolution, etc.) Optimize RAG pipelines: Design retrieval strategies and grounding approaches for report generation to ensure factual, relevant outputs Customer-Facing Analytics & Enablement … new features, validate AI outputs for accuracy and relevance, ensure quality before launch Operations & Optimization (10%) Monitor report health: Track delivery, engagement, and quality metrics; debug when outputs degrade Performance tuning: Optimize report generation costs and latency; balance API usage with quality Document everything: Maintain clear documentation for prompts, templates, and best practices What Makes You a Great More ❯

maintain the library of system prompts for ticket summarization, theme extraction, sentiment analysis, and qualitative insights Define reporting standards: Set quality bars for what makes a great dashboard (agent performance, app store trends, CSAT drivers, topic evolution, etc.) Optimize RAG pipelines: Design retrieval strategies and grounding approaches for report generation to ensure factual, relevant outputs Customer-Facing Analytics & Enablement … new features, validate AI outputs for accuracy and relevance, ensure quality before launch Operations & Optimization (10%) Monitor report health: Track delivery, engagement, and quality metrics; debug when outputs degrade Performance tuning: Optimize report generation costs and latency; balance API usage with quality Document everything: Maintain clear documentation for prompts, templates, and best practices What Makes You a Great More ❯

world-leading quantitative trading firm in the search for an Experienced Software Developer/Engineer to join their OTC technology group in London. This team designs and develops high-performance trading platforms that span both OTC liquidity provision and on-venue execution, covering asset classes such as equities, FX, and crypto. Operating within a highly autonomous environment, the team … works closely with quants, risk and compliance stakeholders, and trading analysts to transform requirements into production-grade systems. With a focus on safety, performance, and velocity, this is a chance to contribute to the design of mission-critical infrastructure with a small, experienced group of engineers where impact is immediate and highly visible... Key Responsibilities Design, build, and maintain … quants, analysts, and compliance stakeholders to refine system requirements and deliver production-ready solutions Implement and optimise low-latency infrastructure, including network stack integration, thread-per-core architectures, and performance tuning Contribute to team-wide design discussions, code reviews, and continuous improvement initiatives Take ownership of projects across the full development lifecycle, from architecture through deployment and monitoring More ❯

world-leading quantitative trading firm in the search for an Experienced Software Developer/Engineer to join their OTC technology group in London. This team designs and develops high-performance trading platforms that span both OTC liquidity provision and on-venue execution, covering asset classes such as equities, FX, and crypto. Operating within a highly autonomous environment, the team … works closely with quants, risk and compliance stakeholders, and trading analysts to transform requirements into production-grade systems. With a focus on safety, performance, and velocity, this is a chance to contribute to the design of mission-critical infrastructure with a small, experienced group of engineers where impact is immediate and highly visible... Key Responsibilities Design, build, and maintain … quants, analysts, and compliance stakeholders to refine system requirements and deliver production-ready solutions Implement and optimise low-latency infrastructure, including network stack integration, thread-per-core architectures, and performance tuning Contribute to team-wide design discussions, code reviews, and continuous improvement initiatives Take ownership of projects across the full development lifecycle, from architecture through deployment and monitoring More ❯

be able to work independenty with minimal help/guidance Good Understanding of Airflow,Data Fusion and Data Flow Strong Background and experience in Data Ingestions,Transformation,Modeling and Performance tuning. One migration Experience from Cornerstone to GCP will be added advantage Suppport the design and development of BigData echosystem Experience in building complex SQL Queries Strong Communication Skills More ❯

large enterprise initiatives Must have experience in Legacy Modernization programs Should be proficient at collaborating with cross functional teams Strong Background and experience in Data Ingestions, Transformation, Modeling and Performance tuning. Should have experience in designing and developing dashboards Strong Knowledge in Hadoop, Kafka, SQL/NoSQL Should have experience in creating roadmap to improve platform Observability Experience in More ❯

large enterprise initiatives Must have experience in Legacy Modernization programs Should be proficient at collaborating with cross functional teams Strong Background and experience in Data Ingestions, Transformation, Modeling and Performance tuning. Should have experience in designing and developing dashboards Strong Knowledge in Hadoop, Kafka, SQL/NoSQL Should have experience in creating roadmap to improve platform Observability Experience in More ❯