A front and back end tester for the QA team at a London trading venue. You'll test releases, upgrades and bespoke client projects across its trading systems, with front-end automation in Playwright and TypeScript. Cash equities testing experience matters here, and you'll lead testing on small projects, not just run scripts.

A senior C++ engineer to take ownership of a live systematic CME futures stack, built in-house and already trading NQ, ES, gold and oil. You'll harden it, make the backtests honest and take trading-system decisions off the person who built it. Real architectural say, and a route closer to strategy, execution and P&L than a C++ seat inside a large institution would give you.

Two Quantitative Developers for the models and quantitative data team at a global trading and risk SaaS vendor. You'll build pricing models and real-time market risk, VaR and greeks across every asset class, in modern high-performance C++ on a grid computing platform. Global investment banks and multi-strategy hedge funds run on these models, so the maths and the engineering both have to hold up.

Two Quantitative Data Developers for the models and quantitative data team at a global trading and risk SaaS vendor. You'll build the Python, SQL and Snowflake data solutions that feed pricing models and real-time market risk across every asset class. The data has to be right, because global investment banks and multi-strategy hedge funds price and manage risk on it.

Two Financial Engineers for the models and quantitative data team at a global trading and risk SaaS vendor. It is the earlier-career route into the same work as the quant developers: pricing models and real-time market risk across every asset class, written in high-performance C++. Real exposure to the hardest problems in finance, alongside people who solve them every day.

A senior C++ engineer for the small team that sits between the exchange engine and everyone who depends on it. You'll investigate the hardest production issues, prototype new trading features fast, and build the test and diagnostic tools that keep a live trading venue running. Detective work and creative engineering in equal measure.

A DevOps Engineer for a small, skilled team running the on-prem and container infrastructure behind a London trading venue. You'll automate with Terraform, Ansible and Python, and grow into Kubernetes, OpenShift and GitOps on real trading infrastructure. Built for a strong Linux administrator, or a DevOps engineer early in the role, who wants to go deeper.

Two Network Engineers for a small, expert team running the low-latency trading network, cloud and on-prem infrastructure behind a London trading venue. You'll own client onboarding, troubleshoot with packet captures and logs, and keep live markets connected. A shift-based role for someone who finds root cause rather than guessing at it.

A hands-on DBA hire at Associate Director level, owning a varied database estate behind low-latency, regulated production systems. Mature relational tooling in MySQL and PostgreSQL sits alongside genuinely specialist technology: QuestDB, Dolt, Redis, Elasticsearch. You get autonomy over how the estate is run without being the only person who understands it.

React work that powers markets rather than another customer-facing product. You'll build the web and desktop applications traders and market operators use to run, monitor and control exchange infrastructure, technology this firm licenses out to other markets too. Ownership over ticket-shuffling, on a platform where unreliable code has a visible consequence.

Market microstructure research that actually ships into product. You'll join a specialist product group at one of the largest historical market data businesses in the industry, working across quantitative research, product development and client interaction, with direct access to exchange data environments most quant researchers never see. If you want your analysis to influence what gets built rather than sit in a notebook, this is the role.

Multiple senior C++ hires on the core platform powering electronic equities markets across Europe. You'll build event-driven, real-time systems that stay reliable under heavy throughput and respond in microseconds, working in modern C++ on Linux. Genuine freedom to shape architecture and challenge ideas, not just implement tickets.

Operations leadership hire to take a competent first-line support team and make it excellent at a listed European exchange. You'll own release coordination, shift scheduling, incident management, and client relationships with tier-one banks, with genuine autonomy from day one. This is about shaping how the function runs, not inheriting a ticket queue.

Full-cycle Account Executive for an AI content compliance company scaling in the US market. You'll own pipeline generation and complex B2B SaaS deals from prospecting to close, selling into legal, compliance and marketing teams across regulated industries. A genuine hunter-farmer seat owning a US territory with real headroom, $100k–$500k deal sizes against a $1.5M+ quota.