1 to 25 of 33 Permanent Performance Engineering Jobs in London

Test Engineering Remote - Permanent - EU based (UK Ideally) A remote, executive-level role responsible for end-to-end Quality Engineering for a large, established Fintech firm. This position holds full accountability for quality strategy, execution, and maturity, with a strong emphasis on capability-building rather than headcount growth. … levels. From board and executive discussions to detailed technical guidance with senior engineers. Core Responsibilities Own and evolve the organisation wide Quality Engineering strategy. Lead quality across four pillars: Manual & regression testing Test automation Performance engineering Certification and compliance testing Establish and embed consistent quality standards across ...

Test Engineering Remote - Permanent - EU based (UK Ideally) A remote, executive-level role responsible for end-to-end Quality Engineering for a large, established Fintech firm. This position holds full accountability for quality strategy, execution, and maturity, with a strong emphasis on capability-building rather than headcount growth. … levels. From board and executive discussions to detailed technical guidance with senior engineers. Core Responsibilities Own and evolve the organisation wide Quality Engineering strategy. Lead quality across four pillars: Manual & regression testing Test automation Performance engineering Certification and compliance testing Establish and embed consistent quality standards across ...

Engineering Leader | AI-Native B2B SaaS | London (Hybrid) Package: £150,000-£200,000 + meaningful equity Location: London (hybrid, in-person collaboration encouraged) bloom has partnered with a high-growth, AI-native B2B SaaS startup that’s rethinking how modern teams operate in one of the most fundamental areas … outstanding founding team from some of the world’s most successful companies 🚀 This is a rare opportunity to step in as the most senior engineering leader , owning the function end-to-end at a pivotal moment of scale. With an established engineering presence across Europe, the business ...

Engineering Leader | AI-Native B2B SaaS | London (Hybrid) Package: £150,000-£200,000 + meaningful equity Location: London (hybrid, in-person collaboration encouraged) bloom has partnered with a high-growth, AI-native B2B SaaS startup that’s rethinking how modern teams operate in one of the most fundamental areas … outstanding founding team from some of the world’s most successful companies 🚀 This is a rare opportunity to step in as the most senior engineering leader , owning the function end-to-end at a pivotal moment of scale. With an established engineering presence across Europe, the business ...

close to the metal. They will operate across everything from bare-metal Linux to modern build and observability stacks . Overview Join a core engineering group as Lead Site Reliability Engineer, designing and scaling Linux platforms that underpin ML/AI-driven trading. You will architect and own reliability … platform SRE excellence. Key Responsibilities Lead SRE practices for Linux platforms powering low-latency, high-throughput trading workloads. Architect, optimize, and tune Linux for performance, resilience, and minimal latency. Drive incident response, root cause analysis, and continuous reliability improvement across production systems. Oversee system automation and reproducibility—build, deploy ...

close to the metal. They will operate across everything from bare-metal Linux to modern build and observability stacks . Overview Join a core engineering group as Lead Site Reliability Engineer, designing and scaling Linux platforms that underpin ML/AI-driven trading. You will architect and own reliability … platform SRE excellence. Key Responsibilities Lead SRE practices for Linux platforms powering low-latency, high-throughput trading workloads. Architect, optimize, and tune Linux for performance, resilience, and minimal latency. Drive incident response, root cause analysis, and continuous reliability improvement across production systems. Oversee system automation and reproducibility—build, deploy ...

Head of Engineering - Fully Remote - £100,000-£150,000 I'm currently partnered with one of the biggest names in their industry - a genuinely market-leading organisation with world-renowned clients - and they are looking for an exceptional Head of Engineering to join them during a hugely exciting … period of growth. This is a standout opportunity for a senior engineering leader who still enjoys staying hands-on. The role is a true 50/50 split between leadership and coding, giving you both strategic influence and deep technical involvement. The position is fully remote across ...

their mobile customer experience. This is a chance to join a respected institution undergoing a major digital modernisation—playing a senior role in driving engineering excellence and delivering secure, high-performing mobile applications used at national scale. The Opportunity In this position, you’ll take the lead on designing … building software that puts user experience front and centre. You’ll steer complex engineering initiatives, define core architectural patterns, and provide technical direction to multiple feature teams—ensuring their delivery aligns with wider technology and business goals. You’ll work closely with architects, senior engineers, and product leaders ...

their mobile customer experience. This is a chance to join a respected institution undergoing a major digital modernisation—playing a senior role in driving engineering excellence and delivering secure, high-performing mobile applications used at national scale. The Opportunity In this position, you’ll take the lead on designing … building software that puts user experience front and centre. You’ll steer complex engineering initiatives, define core architectural patterns, and provide technical direction to multiple feature teams—ensuring their delivery aligns with wider technology and business goals. You’ll work closely with architects, senior engineers, and product leaders ...

pension + 10% benefit funding + 30 days holiday A leading financial institution is hiring an eFX Software Engineer to build and optimise high-performance trading systems within a low-latency e-trading environment. You'll work as a senior technical contributor within the eFX engineering group, driving … architectural decisions, evolving Java performance patterns, and shaping platform strategy at scale. This role offers significant technical scope, direct impact, and the opportunity to influence system performance, design, and future direction across the e-trading stack. The role You will: Design and engineer fault-tolerant, high-performance ...

Engineering Manager (Java AI) London/WFH to £140k Are you a technical leader with a strong knowledge of AI and its practical uses within software engineering? You could be progressing your career in a senior, hands-on Engineering Manager role at a global FinTech/… budget for organising events and projects that foster an open, diverse and inclusive culture Plus a range of other perks Your role: As an Engineering Manager you'll head up a team of nine AI Engineers whilst remaining hands-on with coding. Your primary focus will be on using ...

Software Engineer (C++/Java – Trading Systems) | £55,000–£77,000 | Hybrid (London/Remote) Build technology that powers real trading. Join a high-performance engineering team developing low-latency, resilient backend systems used in live trading environments. You’ll work on complex technical challenges from … just writing code in the background. This is a fast-growing fintech where strong engineers progress quickly into Senior, Low-Latency, or Quant-Engineering tracks within 12–24 months. What You’ll Do Design, build, and optimise backend components of real-time trading and risk systems Develop clean, efficient ...

modern finance operates. By pairing deep technical expertise with scientific thinking, you will design platforms that empower advanced research, accelerate discovery and support ambitious engineering at scale. The teams thrive in an environment built for curiosity, rigour and long-term innovation. As a DevSecOps Engineer … written through to deployment, without slowing down delivery. You'll help design, build and maintain secure, scalable and resilient systems that support our engineering community, while continuously shaping best practices across applications, infrastructure and services. Your experience Proficient programming ability in at least one language (Python preferred) Proven experience ...

Lead Engineer – Agentic AI Systems 🚀 Start-up-style engineering team inside a global consulting powerhouse 🚀 Peer group of world-class AI engineers and researchers 🚀 Own and build production-grade multi-agent systems end-to-end 🚀 High-velocity environment with huge technical autonomy 💸 £130k – £160k + bonus 📍 UK-wide flexible … Forward Deployed Engineer , Principal/Staff AI Engineer , or Member of Technical Staff who’s ready to lead technically , own architecture, and guide an engineering team—without stepping into corporate exec-land. You’ll set technical direction, define engineering standards, and stay extremely close to the codebase while ...

Principal Engineer – Agentic AI Systems 🚀 Start-up-style engineering team inside a global consulting powerhouse 🚀 Peer group of world-class AI engineers and researchers 🚀 Own and build production-grade multi-agent systems end-to-end 🚀 High-velocity environment with huge technical autonomy 💸 £160k – £220k + bonus 📍 UK-wide flexible … Forward Deployed Engineer , Principal/Staff AI Engineer , or Member of Technical Staff who’s ready to lead technically , own architecture, and guide an engineering team—without stepping into corporate exec-land. You’ll set technical direction, define engineering standards, and stay extremely close to the codebase while ...

platforms, and high‐end automation. Network Engineer – Overview This elite trading firm is seeking a Network Engineer to join a small, high‐impact engineering group supporting ML/AI‐driven trading and research. You will work closely with teams running massive simulation, HPC, and network production workloads that depend … critical network infrastructure at scale and help shape the next generation of compute systems. Key Responsibilities Own the full life cycle of network engineering: design, implementation, and ongoing operations for latency‐sensitive and throughput‐heavy environments. Support large, distributed networks with expert knowledge of routing, switching, and multicast concepts ...

platforms, and high‐end automation. Network Engineer – Overview This elite trading firm is seeking a Network Engineer to join a small, high‐impact engineering group supporting ML/AI‐driven trading and research. You will work closely with teams running massive simulation, HPC, and network production workloads that depend … critical network infrastructure at scale and help shape the next generation of compute systems. Key Responsibilities Own the full life cycle of network engineering: design, implementation, and ongoing operations for latency‐sensitive and throughput‐heavy environments. Support large, distributed networks with expert knowledge of routing, switching, and multicast concepts ...

Software Architecture Microservices, monoliths, hexagonal, etc Event sourcing and propagation Distributed systems behaviour (and the trade-offs, latency, redundancy, resilience) Understanding of scalability, reliability, performance engineering, etc Architectural Governance Establishing group architectural patterns without slowing down individual teams or reducing autonomy Creation of reference architectures for others ...

C++ Software Developer, Risk Technology £160,000 to £170,000 Join a high-performance engineering group responsible for the systems that sit at the heart of a global trading operation. This team owns the core risk platform, handling everything from trade intake and real time position tracking … under load, propagate risk metrics across internal systems and support a front office that depends on accuracy and speed. You will work in an engineering culture that values clarity, simplicity and strong design. Expect to collaborate with colleagues across regions, refine performance at a system level and contribute ...

C++ Software Developer, Risk Technology £160,000 to £170,000 Join a high-performance engineering group responsible for the systems that sit at the heart of a global trading operation. This team owns the core risk platform, handling everything from trade intake and real time position tracking … under load, propagate risk metrics across internal systems and support a front office that depends on accuracy and speed. You will work in an engineering culture that values clarity, simplicity and strong design. Expect to collaborate with colleagues across regions, refine performance at a system level and contribute ...

C++ Software Developer, Risk Technology £160,000 to £170,000 Join a high-performance engineering group responsible for the systems that sit at the heart of a global trading operation. This team owns the core risk platform, handling everything from trade intake and real time position tracking … under load, propagate risk metrics across internal systems and support a front office that depends on accuracy and speed. You will work in an engineering culture that values clarity, simplicity and strong design. Expect to collaborate with colleagues across regions, refine performance at a system level and contribute ...

C++ ARCA is currently looking for a Senior Software Engineer to join on a short-term contract to help support an automotive/motorsport engineering programme. This role suits someone comfortable working close to real-time systems, networking and performance-critical software, typically found in vehicle platforms, simulation … data or control environments. Key Responsibilities Develop and maintain high-performance C/C++ software Work on concurrent, parallel and asynchronous systems Contribute to distributed, real-time architectures (pub/sub models, time-synchronised systems) Key Skills & Experience Strong C/C++ development Solid understanding of concurrency, multi-threading ...

Benefits I am supporting a high-growth connectivity and digital infrastructure organisation that is building out its automation capability within a highly technical network engineering team. They are looking for a Network Automation Engineer who comes from a strong networking foundation and has evolved into automation, scripting and DevOps … style delivery. You will be joining an engineering group of seven, where two members currently focus on automation and five are pure networking specialists. This hire acts as the bridge between both - enabling scalable, reliable and repeatable deployments across complex infrastructure environments. This role suits someone who enjoys rolling ...

Benefits I am supporting a high-growth connectivity and digital infrastructure organisation that is building out its automation capability within a highly technical network engineering team. They are looking for a Network Automation Engineer who comes from a strong networking foundation and has evolved into automation, scripting and DevOps … style delivery. You will be joining an engineering group of seven, where two members currently focus on automation and five are pure networking specialists. This hire acts as the bridge between both - enabling scalable, reliable and repeatable deployments across complex infrastructure environments. This role suits someone who enjoys rolling ...

/SD-WAN architecture and design. Proficiency in routing & switching (L2/L3), and Wi-Fi controllers/enterprise deployments. Expertise in network performance engineering, including capacity planning, QoS, and traffic engineering. Strong background in security, including firewalls, VPNs, IDS/IPS, secure segmentation, and Zero Trust architecture. ...