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Remote (UK-based) | Full-Time Reactive Markets is the 2026 OTC Trading Platform of the Year (_). Our network handles over $50 billion in daily trading volumes across FX, Equities, and Cryptocurrency, connecting 40+ of the world's leading liquidity providers. We build trading systems that operate at the edge of what's technically possible — where nanoseconds matter and a dropped message costs real money. Our engineering team is small, senior, and deeply invested in the craft of building cutting edge, reliable, high-performance systems. We're looking for a C++ Software Engineer who wants to build low-latency trading infrastructure on Linux. You'll work on the core components of our Switchboard trading platform — pricing engines, connectivity gateways, market-data systems, and the messaging layer that ties them together. This is not a role where you write code and throw it over a wall. You build it, you test it, you deploy it, you support it in production, and you improve it. Our engineers own the full lifecycle — from design through to operational excellence. When something breaks at 4pm on a Friday, you're part of the team that investigates and fixes it. Occasional hours outside the normal working day are required for production releases, scheduled maintenance windows, and Level 3 support during critical incidents. We keep this to a minimum and recognise the commitment — but owning a production trading platform means being there when it matters. Modern C++20 and Go on Linux — a modern software stack based on open source Cloud-native infrastructure on AWS with colocation in key data centres Microsecond-level latency optimisation and high-throughput messaging Market-data and reference-data pipelines across multiple asset classes FIX protocol integrations with global banks and liquidity providers Observability and monitoring — dashboards, alerting, and metrics that make system behaviour visible Production systems that handle real money — reliability is not optional Technical: Strong C++ with Linux systems programming (3+ years) Comfortable working close to the metal — you understand what's underneath your code Experience with performance-sensitive systems (profiling, optimisation, deterministic behaviour) Familiarity with networking fundamentals (TCP/UDP, socket programming) Go experience is a strong bonus — we use Go extensively for microservices and command-line tooling, and you'll be expected to work with it internally. If you don't know it yet, strong C++ engineers pick it up quickly Python for scripting, automation, testing, and data analysis — used across the platform for tooling and operational workflows Git and shell scripting Experience in financial services or trading technology is a plus but not essential How you work: You ship. You're delivery-focused — you iterate, you improve, you get things into production You own it. When you build something, you take responsibility for its behaviour in production. You respond to incidents (15-minute acknowledgement SLA during working hours), investigate issues, and close the loop You write things down. Documentation is not an afterthought — it's how we scale knowledge across a distributed team. If it's not written down, it doesn't exist You communicate. We're a distributed team across multiple time zones. Clear, proactive communication — especially when things go wrong — is essential You care about quality. You write clean, testable code. You review your peers' work thoughtfully. You push for continuous improvement without gold-plating You embrace AI tooling. We use AI tools (Claude, Gemini) to amplify our engineering capability — from code review and debugging to incident investigation and documentation. You don't need to be an expert, but you should be curious and willing to learn Real problems — trading systems where performance is measured in microseconds, not user clicks An excellent team — senior engineers who care about craft, collaborate openly, and hold each other to high standards Ownership — small teams, clear accountability, direct impact on the platform and our clients Competitive package — up to 30 days leave + bank holidays, private health insurance, pension, life insurance, dental/optical cashback, cycle to work, socials and offsites Remote-friendly — work from home with flexibility. We trust our people to deliver Sustainable pace — we work hard, but we don't burn people out. Balance is how we stay sharp Growth — career progression to senior roles, performance specialisation, or technical leadership. We invest in people who invest in us We believe in transparency, honest feedback, and writing things down. We celebrate delivery, not activity. We frame AI as empowering people — removing toil, amplifying capability, enabling higher-value work. We aim to build systems that don't depend on the heroics of individuals to maintain and support — systems and processes that are resilient, documented, and sustainable. We keep our process focused and respectful of your time. Our process follows three stages. Stage 1: Initial Conversation with Talent Acquisition Format: Video call, ~30-45 minutes Stage 2: Hiring Manager Conversation with the relevant team lead or hiring manager Format: Video call, ~60 minutes Stage 3: Technical Interview with two members of the relevant engineering team Format: Video call, interactive session, ~60 minutes What to expect in each stage will be explained by Talent Acquisition if you're invited to interview. Throughout the process, we aim to keep momentum with no unnecessary delays between stages, and feedback typically comes within a few business days. *Please note that depending on availability, Stage 2 and 3 may swap around. Please apply directly via this job posting — all applications, including those submitted via LinkedIn, are managed through our applicant tracking system, so you'll always land in the same place regardless of where you found this role. Right to Work: Candidates must have the existing right to work in the UK. We are not currently able to offer visa sponsorship for this role. Equal Opportunities: Reactive Markets is an equal opportunities employer. We welcome applications from all qualified candidates regardless of age, disability, gender reassignment, marriage or civil partnership, pregnancy or maternity, race, religion or belief, sex, or sexual orientation. Reasonable Adjustments: If you need any adjustments or support during the application or interview process, please let us know — we're happy to accommodate. Data Protection: By applying, you consent to Reactive Markets processing your personal data for recruitment purposes, in line with our . #Hiring #SoftwareEngineering #CPlusPlus #FinTech #TradingTechnology #RemoteWork #LowLatency

Remote (UK-based) Reactive Markets is the 2026 OTC Trading Platform of the Year (_). Our network handles over $50 billion in daily trading volumes across FX, Equities, and Cryptocurrency, connecting 40+ of the world's leading liquidity providers. We build trading systems that operate at the edge of what's technically possible — where nanoseconds matter and a dropped message costs real money. Our engineering team is small, senior, and deeply invested in the craft of building cutting edge, reliable, high-performance systems. We're hiring the first dedicated Technical Delivery Analyst. You will own the delivery of software projects end-to-end — from requirements through to production — working alongside engineers to ensure work lands on time, risks are visible, and stakeholders always know where things stand. As our engineering organisation grows into more specialised teams, you are the person who sits across the space between them — owning the dependencies, coordination, and communication that no single team owns. This is not an administrative role. You need to understand the technology being built, speak credibly with engineers about architecture and trade-offs, and translate technical reality into clear communication for the business. You are the person who knows what is happening, why it matters, and what might go wrong — and you make sure everyone else knows too. You will work closely with the Head of Technical Delivery and daily with Engineering, TechOps, and Product, with regular interaction with client-facing teams (Sales, Client Services). The role offers a clear path to Delivery Manager as the team grows and you take on broader ownership. Delivery Ownership: Own projects from inception to production — responsible for outcomes, not just process Understand technical scope, architecture, and dependencies well enough to anticipate problems before they surface Ensure infrastructure, testing, performance, and operational readiness are considered from the start Know the current state of your projects at all times Communication: Communicate early and often — bad news delivered early is manageable; bad news delivered late is a crisis Provide honest, accurate status updates — never spin, never hide, never assume someone else will raise it Tailor to the audience — technical detail for engineers, business impact for leadership, actionable clarity for everyone Technical Engagement: Participate meaningfully in technical discussions — you don't write code, but you understand what is being built and why Engage with engineers on architecture, dependencies, and integration points to accurately assess delivery risk Bridge engineering and business by translating technical constraints into language stakeholders can act on Risk Management: Identify risks early through genuine understanding of the work, not by reading ticket statuses Escalate with context — what is the risk, what is the impact, what are the options Contribute to post-incident reviews with a delivery lens — impact, learnings, prevention Continuous Improvement: Look for friction in how work flows and propose practical improvements Experiment with AI tooling to improve delivery efficiency — reporting, analysis, coordination, and communication Maintain delivery tooling as a means to an end, not an end in itself Technical: 2+ years' experience in technical delivery, project management, or software engineering Previously worked as a software developer, or strong hands-on technical experience with software systems Comfortable reading code, reviewing pull requests for context, and understanding technical trade-offs without simplification Knows what "done" looks like in production — tested, deployed, monitored, documented Familiarity with Agile practices and tools (Jira, Confluence) — values principles over ceremony Financial services or trading technology experience is a strong advantage How you work: You own it. End-to-end responsibility. If it's your project, it's your problem — you don't wait for someone to tell you something is off You communicate clearly. Exceptional written and verbal communication. Concise, precise, and honest under pressure. Confident raising difficult topics early — with engineers, stakeholders, and leadership alike — and you absorb pushback as readily as you give it, redirecting heat toward the outcome rather than taking it personally You build trust. Engineers respect people who understand the work, tell the truth, and follow through — not a title. You are genuinely interested in the people you work with, and over time they bring you problems before those problems reach a ticket You steady the room. When a project is drifting or an incident is live, you lower the temperature rather than raise it — calm, calibrated, and focused on what needs to happen next You think in outcomes. Updating a board is not the same as delivering software. You impose structure where needed without over-engineering process You stay technically curious. You genuinely want to understand how systems work and fit together. You don't simplify away the complexity that matters You write things down. Documentation is how we scale knowledge across a distributed team. If it's not written down, it doesn't exist You exercise judgement. You know when to escalate, when to solve, and when to ask for help You embrace AI tooling. We use AI tools to amplify our delivery capability — from reporting and analysis to coordination and communication. You should be curious and willing to learn Real delivery problems — owning end-to-end project outcomes on a market-leading trading platform with genuine scale and technical depth Breadth of exposure — work across the full engineering organisation: backend, frontend, platform, infrastructure, and TechOps An excellent team — senior engineers who care about craft, collaborate openly, and hold each other to high standards Direct mentorship — access to the Head of Technical Delivery for coaching, feedback, and professional development Career progression — a clear path to Delivery Manager as the team grows and you take on broader ownership Competitive package — up to 30 days leave + bank holidays, private health insurance, pension, life insurance, dental/optical cashback, cycle to work, socials and offsites Remote-friendly — work from home with flexibility. We trust our people to deliver Sustainable pace — we work hard, but we don't burn people out. Balance is how we stay sharp We believe in transparency, honest feedback, and writing things down. We celebrate delivery, not activity. We frame AI as empowering people — removing toil, amplifying capability, enabling higher-value work. We aim to build systems that don't depend on the heroics of individuals to maintain and support — systems and processes that are resilient, documented, and sustainable. We keep our process focused and respectful of your time. Our process follows three stages. Stage 1: Initial Conversation with Talent Acquisition Format: Video call, ~30-45 minutes Stage 2: Hiring Manager Conversation with the relevant team lead or hiring manager Format: Video call, ~60 minutes Stage 3: Senior Leadership Conversation with our CTO Format: Video call, ~60 minutes What to expect in each stage will be explained by Talent Acquisition if you're invited to interview. Throughout the process, we aim to keep momentum with no unnecessary delays between stages, and feedback typically comes within a few business days. *Please note that depending on availability, Stage 2 and 3 may swap around. Please apply directly via this job posting — all applications, including those submitted via LinkedIn, are managed through our applicant tracking system, so you'll always land in the same place regardless of where you found this role. Right to Work: Candidates must have the existing right to work in the UK. We are not currently able to offer visa sponsorship for this role. Equal Opportunities: Reactive Markets is an equal opportunities employer. We welcome applications from all qualified candidates regardless of age, disability, gender reassignment, marriage or civil partnership, pregnancy or maternity, race, religion or belief, sex, or sexual orientation. Reasonable Adjustments: If you need any adjustments or support during the application or interview process, please let us know — we're happy to accommodate. Data Protection: By applying, you consent to Reactive Markets processing your personal data for recruitment purposes, in line with our privacy policy [link to be added]. #Hiring #TechnicalDelivery #FinTech #TradingTechnology #RemoteWork #ProjectManagement

Remote (UK-based) | Full-Time Reactive Markets is the 2026 OTC Trading Platform of the Year (_). Our network handles over $50 billion in daily trading volumes across FX, Equities, and Cryptocurrency, connecting 40+ of the world's leading liquidity providers. We are investing heavily in AI and data as core strategic priorities for 2026 and beyond. Our execution analytics differentiate us with clients, and our internal AI initiative — Project Iris — is already changing how we investigate production issues, support clients, and run our platform. This is a platform engineering role. As in every engineering role here, the product end to end comes first: how the platform behaves, how it fails, who depends on it. What this seat owns is the data backbone — the data plane nearly everything else is built on, from the calculations the business bills and advises on to the analytics clients see and the AI tooling layered above. Everything here is about data; AI sits on top of it. It is the next phase, not a rewrite. Our Python estate grew up alongside the analytics it supports, and this role gives it real shape and structure — a shared foundation holding our authoritative business calculations, markouts and spreads through to fees and instrument mappings, each implemented and tested once and then called from notebooks, scheduled jobs, APIs and AI tooling alike — before building it out substantially as that backbone grows. Python is the primary language, with cross-training into Go; first-language Python is what we would most like to find. Your closest customer is our Liquidity Management desk, whose execution analytics differentiate us with clients: you will engineer the analysis they have come to depend on, while leaving their exploratory work fast and unconstrained. Your closest engineering partners are our ClickHouse engineers, with whom you will build robust, scalable data processing pipelines over the plant they own. You do not need to have built LLM applications before. The data backbone — the next generation of the shared foundation for our business rules and calculations, made for the people who depend on it: versioned, tested, safe to upgrade Research to production — engineering the analysis the business depends on into tested, monitored pipelines, with the analyst still free to explore Data processing pipelines — built with our ClickHouse engineers, robust and scalable over a plant capturing billions of rows a day, with the reconciliation that proves a figure is right Analytics and monitoring — real-time anomaly detection and platform-health monitoring (our "Radar" initiative), and performant queries over very large datasets AI tooling, agents and MCP servers — investigation tooling that turns hours of manual trawling into guided workflows, and guardrailed access that lets agents act on real systems safely Essential: End-to-end systems thinking — you reason about the whole system, not just your part of it: how it behaves under load, how it fails, what depends on it, and who is affected when it is wrong Strong Python — production Python that other people depended on, with real views on packaging, dependency management, testing and typing. First-language Python is what we would most like to find The ability to work with a business function — evidence you have embedded with domain experts who are not engineers, learnt their world, and earned the right to change how things work SQL — comfortable writing analytical queries against large datasets (ClickHouse, PostgreSQL or similar) Git and Linux fundamentals Important: Library and API design — versioning, backwards compatibility, and designing from the caller's side Production discipline — tests, monitoring, reproducibility, and fixing causes rather than symptoms Docker, Kubernetes and AWS — your work runs in production infrastructure Welcome, and we will help you grow it: Go — cross-training is expected; prior experience is a bonus, not a requirement LLM APIs and tooling — Claude, OpenAI or similar; prompt engineering, tool use, MCP TypeScript / JavaScript — useful for Slack integrations and web interfaces Financial services experience — a plus but not essential. Domain knowledge can be learned; engineering instinct cannot How you work: You ship. You iterate quickly, get things in front of users, and improve based on feedback You respect other people's expertise. The analyst who wrote the notebook knows something you do not. Your job is to make their work durable, not to correct their taste You own it. When you build something, you take responsibility for its behaviour in production — you monitor it, you fix it, you make it better You are honest when a number is wrong. You tell the people who acted on it before you quietly correct it You write things down and communicate. We are distributed across time zones, and documentation is how we scale knowledge — every well-written page also makes our AI tooling better You embrace AI as a tool. You use it to amplify your own work, and hold generated code to the same standard as anything else You own the backbone — the data plane you shape carries the analytics clients see and the figures the business runs on, and everything built after it inherits your decisions A rare vantage point — engineering alongside a trading desk. You will learn how the market actually works, from the people who trade it Ownership — small teams, clear accountability, direct impact on the platform and our people An excellent team — engineers who care about craft, collaborate openly, and hold each other to high standards Competitive package — up to 30 days leave + bank holidays, private health insurance, pension, life insurance, dental/optical cashback, cycle to work, socials and offsites Remote-friendly, at a sustainable pace — work from home with flexibility, and we don't burn people out. Balance is how we stay sharp Growth — Python, data, AI and platform engineering in one role, with the scope growing as the company scales We believe in transparency, honest feedback, and writing things down. We celebrate delivery, not activity. We frame AI as empowering people — removing toil, amplifying capability, enabling higher-value work. We keep our process focused and respectful of your time. Our process follows three stages. Stage 1: Initial Conversation with Talent Acquisition Format: Video call, ~30-45 minutes Stage 2: Hiring Manager Conversation with the relevant team lead or hiring manager Format: Video call, ~60 minutes Stage 3: Technical Interview with two members of the relevant engineering team Format: Video call, interactive session. ~60 minutes What to expect in each stage will be explained by Talent Acquisition if you're invited to interview. Throughout the process, we aim to keep momentum with no unnecessary delays between stages, and feedback typically comes within a few business days. *Please note that depending on availability, Stage 2 and 3 may swap around. Please apply directly via this job posting — all applications, including those submitted via LinkedIn, are managed through our applicant tracking system, so you'll always land in the same place regardless of where you found this role. Right to Work: Candidates must have the existing right to work in the UK. We are not currently able to offer visa sponsorship for this role. Equal Opportunities: Reactive Markets is an equal opportunities employer. We welcome applications from all qualified candidates regardless of age, disability, gender reassignment, marriage or civil partnership, pregnancy or maternity, race, religion or belief, sex, or sexual orientation. Reasonable Adjustments: If you need any adjustments or support during the application or interview process, please let us know — we're happy to accommodate. Data Protection: By applying, you consent to Reactive Markets processing your personal data for recruitment purposes, in line with our privacy policy [link to be added]. #Hiring #SoftwareEngineering #AI #DataEngineering #FinTech #Python #FullStack #RemoteWork

Remote (UK-based) | Full-Time Reactive Markets is the 2026 OTC Trading Platform of the Year (_). Our network handles over $50 billion in daily trading volumes across FX, Equities, and Cryptocurrency, connecting 40+ of the world's leading liquidity providers. We build trading systems that operate at the edge of what's technically possible — where nanoseconds matter and a dropped message costs real money. Our engineering team is small, senior, and deeply invested in the craft of building cutting edge, reliable, high-performance systems. We're looking for a senior full-stack engineer to build the trading platform our clients use every day. Despite the "frontend" name, this is not a UI-only role — our Frontend team works across the whole application stack in TypeScript and Rust, from the trader-facing interfaces down to the services behind them. It's distinct from our Backend team, who own the low-latency C++/Go trading engine. This is a senior individual contributor role for someone who takes on the hardest problems and delivers them under their own steam. You'll own complex, ambiguous, performance-critical work end-to-end — designed, built, tested, deployed, and supported in production. You lead through code, craft, and mentoring, setting the technical example the rest of the team calibrates to. This is not a role where you write code and throw it over a wall: our engineers own the full lifecycle, and when something breaks, you're part of the team that investigates and fixes it. Occasional hours outside the normal working day are required for production releases, scheduled maintenance windows, and Level 3 support during critical incidents. We keep this to a minimum and recognise the commitment — but owning a production trading platform means being there when it matters. Complex full-stack features in TypeScript and Rust — from trader-facing interfaces to the application services behind them Real-time market-data presentation and high-throughput, low-latency application code across FX, Equities, and Cryptocurrency React and reactive state management (RX, MobX, or similar) for demanding, data-dense trading interfaces Distributed systems and real-time data over REST, WebSockets, and network protocols Architecture and solution design for the hardest technical problems the team faces Observability and monitoring — dashboards, alerting, and metrics that make frontend behaviour visible Production systems that handle real money — reliability is not optional Technical: Strong full-stack engineering ability with deep TypeScript / JavaScript (ES6+) (5+ years) Solid experience with React and reactive state management (RX, MobX, or similar) Real working ability in Rust — it's part of our stack and not optional at this level. If your Rust is still developing, a strong track record of picking up new languages to depth quickly is essential Strong grasp of distributed systems, API design, and real-time data (REST, WebSockets, network protocols such as TCP/UDP and binary protocols) Comfortable reasoning about architecture and making defensible technical trade-offs Python for scripting, automation, and tooling is a bonus Git and Linux fundamentals Experience in financial services or trading technology is a plus but not essential How you work: You ship. You're delivery-focused — you iterate, you improve, you get things into production You run with things. Give you an ambiguous, complex problem and you drive it to done without being managed through it. Senior here means trusted, not just experienced You have range. You're not just strong in the familiar parts of the stack — you pick up the unfamiliar and hold your own on the hardest work You own it. When you build something, you take responsibility for its behaviour in production. You respond to incidents (15-minute acknowledgement SLA during working hours), investigate issues, and close the loop You raise the bar. You review peers' work thoughtfully, mentor the engineers around you through the craft, and set a standard others calibrate to You write things down. Documentation is not an afterthought — it's how we scale knowledge across a distributed team. If it's not written down, it doesn't exist You communicate. We're a distributed team across multiple time zones. Clear, proactive communication — especially when things go wrong — is essential You embrace AI tooling. We use AI tools (Claude, Gemini) to amplify our engineering capability — from code review and debugging to incident investigation and documentation. You don't need to be an expert, but you should be curious and willing to learn Real problems — trading systems where performance is measured in microseconds, not user clicks An excellent team — senior engineers who care about craft, collaborate openly, and hold each other to high standards Ownership — small teams, clear accountability, direct impact on the platform and our clients Competitive package — up to 30 days leave + bank holidays, private health insurance, pension, life insurance, dental/optical cashback, cycle to work, socials and offsites Remote-friendly — work from home with flexibility. We trust our people to deliver Sustainable pace — we work hard, but we don't burn people out. Balance is how we stay sharp Growth — career progression to senior roles, performance specialisation, or technical leadership. We invest in people who invest in us We believe in transparency, honest feedback, and writing things down. We celebrate delivery, not activity. We frame AI as empowering people — removing toil, amplifying capability, enabling higher-value work. We aim to build systems that don't depend on the heroics of individuals to maintain and support — systems and processes that are resilient, documented, and sustainable. We keep our process focused and respectful of your time. Our process follows three stages. Stage 1: Initial Conversation with Talent Acquisition Format: Video call, ~30-45 minutes Stage 2: Hiring Manager Conversation with the relevant team lead or hiring manager Format: Video call, ~60 minutes Stage 3: Technical Interview with two members of the relevant engineering team Format: Video call, interactive session, ~60 minutes What to expect in each stage will be explained by Talent Acquisition if you're invited to interview. Throughout the process, we aim to keep momentum with no unnecessary delays between stages, and feedback typically comes within a few business days. *Please note that depending on availability, Stage 2 and 3 may swap around. Please apply directly via this job posting — all applications, including those submitted via LinkedIn, are managed through our applicant tracking system, so you'll always land in the same place regardless of where you found this role. Right to Work: Candidates must have the existing right to work in the UK. We are not currently able to offer visa sponsorship for this role. Equal Opportunities: Reactive Markets is an equal opportunities employer. We welcome applications from all qualified candidates regardless of age, disability, gender reassignment, marriage or civil partnership, pregnancy or maternity, race, religion or belief, sex, or sexual orientation. Reasonable Adjustments: If you need any adjustments or support during the application or interview process, please let us know — we're happy to accommodate. Data Protection: By applying, you consent to Reactive Markets processing your personal data for recruitment purposes, in line with our . #Hiring #SoftwareEngineering #Frontend #TypeScript #Rust #FinTech #TradingTechnology #RemoteWork #FullStack

Remote (UK-based) | Full-Time Reactive Markets is the 2026 OTC Trading Platform of the Year (_). Our network handles over $50 billion in daily trading volumes across FX, Equities, and Cryptocurrency, connecting 40+ of the world's leading liquidity providers. We build trading systems that operate at the edge of what's technically possible — where nanoseconds matter and a dropped message costs real money. Our engineering team is small, senior, and deeply invested in the craft of building cutting edge, reliable, high-performance systems. We're looking for a hands-on engineering leader to own our Frontend team — the full-stack application engineers who build the trading platform our clients use. Despite the "frontend" name, this is not a UI-only role. The team works across the whole application stack in TypeScript and Rust, from the trader-facing interfaces down to the services behind them. It's distinct from our Backend team, who own the low-latency C++/Go trading engine. This is a player-coach role. You'll still write code, review the work that matters, and make the architectural calls that keep the platform fast and maintainable — while owning the team's delivery, its standards, and the development of the engineers in it. The role only works if you can hold two things at once: hands on the platform (credible to your engineers because you understand the work) and off the critical path (leading with depth and raising the team up, so nothing depends on you alone at the keyboard). You'd be the clear owner of this team — responsibility for it is currently shared informally across our CDO, our Head of Technical Delivery, and the most senior engineer. Part of the job is to take that on, close out the informal cover, and build a team that runs under its own steam. This is not a role where you write code and throw it over a wall: our engineers own the full lifecycle, and when something breaks, you lead the team that investigates and fixes it. Occasional hours outside the normal working day are required for production releases, scheduled maintenance windows, and Level 3 support during critical incidents. We keep this to a minimum and recognise the commitment — but owning a production trading platform means being there when it matters. Driving the technical direction of the frontend application stack — architecture, standards, and the trade-offs that keep the platform fast and maintainable Hands-on TypeScript and Rust — building and reviewing the most critical or complex work yourself Real-time, data-dense trading interfaces across FX, Equities, and Cryptocurrency, and the application services behind them Owning code quality across the team through review, design sessions, and the standards you set and enforce Developing the engineers on the team — technical craft and the non-coding skills that let people scale Shaping the roadmap with the CTO, CDO, Technical Delivery, and Client facing teams, and turning priorities into delivered software Ensuring the team owns its Level 3 support, observability, and operational readiness — reliability is not optional Technical: Strong full-stack engineering background with deep TypeScript / JavaScript (ES6+) (5+ years, including time leading or setting technical direction for a team) Familiarity with React and reactive state management (RX, MobX, or similar) Working knowledge of Rust, or the clear appetite and ability to get there — it's part of our stack Solid grasp of distributed systems, API design, and real-time data (REST, WebSockets, network protocols) — you understand what it takes to build software that's fast and reliable under load Able to make and defend architectural decisions, and explain the trade-offs to engineers and non-technical stakeholders alike Experience in financial services or trading technology How you lead: You lead by example. You write code, review designs, and hold the highest standards. Engineers respect a lead who understands the work, not one who manages it from a distance You build strength across the team. You know when to be hands-on and when to step back. You lead with depth and raise the others up, rather than being the single point of failure You own it. You take responsibility for the team's delivery, quality, and production reliability — not just your own output. When something breaks, you lead the investigation and fix You develop people. You invest time in mentoring and growing the team, and you can point to engineers who are better for having worked with you You're direct and honest. You give specific, timely feedback, and you hold a quality line without becoming a bottleneck You communicate. We're a distributed team across multiple time zones. Clear, proactive communication — especially during incidents and in stakeholder updates — is essential You embrace AI tooling. We use AI tools (Claude, Gemini) to amplify our engineering capability — from code review and debugging to incident investigation and documentation Real problems — trading systems where performance is measured in microseconds, not user clicks An excellent team — senior engineers who care about craft, collaborate openly, and hold each other to high standards Ownership — small teams, clear accountability, direct impact on the platform and our clients Competitive package — up to 30 days leave + bank holidays, private health insurance, pension, life insurance, dental/optical cashback, cycle to work, socials and offsites Remote-friendly — work from home with flexibility. We trust our people to deliver Sustainable pace — we work hard, but we don't burn people out. Balance is how we stay sharp Growth — career progression to senior roles, performance specialisation, or technical leadership. We invest in people who invest in us We believe in transparency, honest feedback, and writing things down. We celebrate delivery, not activity. We frame AI as empowering people — removing toil, amplifying capability, enabling higher-value work. We aim to build systems that don't depend on the heroics of individuals to maintain and support — systems and processes that are resilient, documented, and sustainable. We keep our process focused and respectful of your time. Our process follows three stages. Stage 1: Initial Conversation with Talent Acquisition Format: Video call, ~30-45 minutes Stage 2: Hiring Manager Conversation with the relevant team lead or hiring manager Format: Video call, ~60 minutes Stage 3: Technical Interview with two members of the relevant engineering team Format: Video call, interactive session, ~60 minutes What to expect in each stage will be explained by Talent Acquisition if you're invited to interview. Throughout the process, we aim to keep momentum with no unnecessary delays between stages, and feedback typically comes within a few business days. *Please note that depending on availability, Stage 2 and 3 may swap around. Please apply directly via this job posting — all applications, including those submitted via LinkedIn, are managed through our applicant tracking system, so you'll always land in the same place regardless of where you found this role. Right to Work: Candidates must have the existing right to work in the UK. We are not currently able to offer visa sponsorship for this role. Equal Opportunities: Reactive Markets is an equal opportunities employer. We welcome applications from all qualified candidates regardless of age, disability, gender reassignment, marriage or civil partnership, pregnancy or maternity, race, religion or belief, sex, or sexual orientation. Reasonable Adjustments: If you need any adjustments or support during the application or interview process, please let us know — we're happy to accommodate. Data Protection: By applying, you consent to Reactive Markets processing your personal data for recruitment purposes, in line with our . #Hiring #EngineeringLeadership #Frontend #TypeScript #Rust #FinTech #TradingTechnology #RemoteWork #FullStack

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Citi is seeking an Equities Cash Application Support Senior Manager to join the London hybrid team. The role focuses on hands-on technical production support for a suite of Equities cash trading applications, ensuring incident resolution and SLA adherence. The ideal candidate has extensive equities

JPMorgan Chase is seeking a Balance Sheet & Liquidity Control Lead within the Global Equities Product Control team. You will work with Internal Stakeholders and across Equities and Fixed Income counterparts to ensure.

We’re seeking someone to join our team as aaJava developer to work on automated trading systems, primarily in the Equities domain. Interest in developing systems for automated market making, DMA or algo trading group in liquid markets (equities, FX, liquid rates, etc.

As a Director of Software Engineering at JPMorganChase within Equities Trading Technologies, you will oversee a key technical domain and deliver results across teams, technologies, and cross-departmental projects.

JPMorganChase is seeking a Vice President in the Markets Audit team within Commercial & Investment Banking to lead risk‑based audit coverage of Market Equities and related activities, directly engaging with Front Office leadership and technology partners.

Barclay Simpson is seeking a Director-level Equities & Hybrids Quant Modeller in London.

We’re seeking someone to join our team as aaJava developer to work on automated trading systems, primarily in the Equities domain. Ability to analyse business & technical requirements and translate them into a well designed & programmed solutionA logical approach to problem solving and good analyt

As a Balance Sheet & Liquidity Control Lead in the Global Equities Product Control team, you will partner with stakeholders across Finance, Business Management, and the Global Equities business to analyze and manage the balance sheet and liquidity position. Are you ready to advance your career in a

As a Director of Software Engineering at JPMorganChase within Equities Trading Technologies, you will oversee a key technical domain and deliver results across teams, technologies, and cross-departmental projects.

The Senior Investment Manager, Equities will recommend appropriate benchmarks and target returns, understand macroeconomic dynamics and the return and risk drivers across global listed equities. The Senior Investment Manager for Equities will play a key role within the wider Investment function, dir

A leading Tier 1 Investment Bank is seeking a Director-level Equities Quant to join its Equity & Hybrids team in London. Equities & Hybrids Quant Modeller – Director.

As a Senior Lead Software Engineer at the company within the Equities Sales and Trading Technology, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way.

BlueSteps Connect is seeking a lead to drive strategic equities and derivatives initiatives focused on electronic and low-touch trading.

Business Analyst Lead About Reply:Reply specialises in designing and implementing solutions based on new communication channels and digital media.Structured as a network of highly specialised companies, Reply supports leading European industrial groups in sectors such as Telco & Media, Industry and

Senior Technical Business AnalystHybrid – Attached to our Solihull, London or Hook office Full Time, Permanent Band 3 / Competitive Salary (dependent on experience) Here at Serco, we’re looking for a Senior Technical Business Analyst to join our Digital Portfolio & Delivery Practice.Thi

Adobe Project ManagerThe ChallengeThe Project Manager will work directly with our customers and system integration partners to initiate and lead their digital marketing and transformation projects using the Adobe Marketing and Commerce Solutions.Working at multiple levels with the customer, you will

Job Purpose Job PurposeThe Senior Project Manager is responsible for executing complex projects from inception to completion, acting as the primary liaison between RWS and key clients, to ensure client retention, satisfaction, and ultimately repeat revenue growth.As the main point of contact for

Mission: The Project Manager is responsible for the end-to-end delivery of complex, high-risk customer projects, ensuring delivery on time, within scope and budget, and aligned with business and customer objectives.This is a customer-facing leadership role requiring strong commercial awareness, stak

At BNY, our culture allows us to run our company better and enables employees’ growth and success.As a leading global financial services company at the heart of the global financial system, we influence nearly 20% of the world’s investible assets.Every day, our teams harness cutting-edge AI and

Location: Suffolk (3 days onsite per week) Salary: Excellent basic salary plus bonus and Vodafone benefitsWorking Hours: Full time 37.Monday to FridayWho We AreWe’re here to build a network the UK can count on – one that connects people, places and potential.Because no matter where you live, wha

Precision for Medicine is hiring a Project Manager, Central Laboratory Services to work remotely from Poland, Serbia, Romania, Hungary, Slovakia, or the UK.Position Summary:This role will lead new and existing CRO laboratory projects across a range of disciplines all with the focus on accelerating t

As a Senior Project Manager within the Lending business, you will lead the delivery of large, complex client projects across the full lending lifecycle.You will manage high‑visibility delivery, coordinate multi‑disciplinary global teams, and ensure predictable outcomes across scope, schedule, co

Be the one building AI-powered experiences where they matter most.At Genesys, we help organizations create better customer experiences through AI-powered experience orchestration.Our platform connects people, systems, data and AI to help organizations deliver more personalized service, improve opera

Technology Headhunters 70,000 to 80,000 United Kingdom Permanent Full-time Are you an experienced Project Manager who has successfully managed overlapping projects including integration and business transformation? Do you have experience working within technology-based organisations? Are y

Proven delivery of multi-country global transformation programmesStrong Salesforce expertise across multi-cloud implementationsHands-on experience with ServiceNow enterprise workflowsExperience in CPQ and commercial lifecycle optimization platformsExperience in CRM migration and platform modernisati

Precision for Medicine is hiring a Project Manager, Central Laboratory Services to work remotely from Poland, Serbia, Romania, Hungary, Slovakia, or the UK.Position Summary:This role will lead new and existing CRO laboratory projects across a range of disciplines all with the focus on accelerating t

We are excited to offer a fantastic opportunity for a Permanent Lead Pre-Construction Project Manager offering remote working with Travel across Central England and North West.Per week, Monday to FridayJoin our vibrant, inclusive community in Complex Facilities working on the Defence Housing Estate

Redefine delivery in loss adjusting platforms by using AI as the default way of working across analysis, design, and implementation.Focus: speed, technical depth, and hands-on execution across claims, billing, and payment flows.Hands-on role combining: • AI-driven analysis & specification�

Your roleAs a VT Business Area Senior Analyst, your mission is to Support the BA management team with insightful analysis and forward-looking guidance to drive the achievement of business objectives.The role operates closely with the six VT Divisions to ensure alignment, consistency, and transparenc

Technical Project Manager – Synthetic DataAbout the team & product: The Synthetic Data Research team is building Ipsos’ next-generation platform for synthetic data and generative AI, turning cutting-edge methods into practical tools that can be used safely and confidently across the business.We

Req ID:357586NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us.If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now.We are currently seeking a Technical project Manager to join our team in Across EMEA, Unit

What if you could do the kind of work the world needs?At WSP, you can access our global scale, contribute to landmark projects and connect with the brightest minds in your field to do the best work of your life.You can embrace your curiosity in a culture that celebrates new ideas and diverse perspec

What you’ll doYour key accountabilities will include:Own key financial control and reconciliation activities, ensuring transactions are accurate, complete and in line with agreed policies and procedures.Prepare and maintain journals, and other financial adjustments, making sure supporting documen

Are you an experienced full service Project Manager in the field of clinical trials who’s engaged in addressing the challenges facing the research and development of novel compounds in Oncology.Are you passionate about impacting the health and lives of patients around the world? Do you take a cons

The RoleLead the planning and delivery of customer and internal projects at our Alnwick site, ensuring timelines, budgets, and quality standards are consistently met.Acting as the central point of contact, you will build strong relationships with clients and internal teams, keeping projects on track

Project Controls Manager (PMCM: Programme Solutions)What if you could do the kind of work the world needs?At WSP, you can access our global scale, contribute to landmark projects and connect with the brightest minds in your field to do the best work of your life.You can embrace your curiosity in a c