First Base Jobs

Software Engineer – Execution / Trading SystemsLondon | Office-Based | PermanentA high-performing market maker is looking to hire a Software Engineer to join its core engineering team building the systems that power live trading across global electronic markets.This is a strong opportunity for an engineer who enjoys performance-critical systems, cl...

Our client is a global financial services and market infrastructure business operating across commodities, energy and financial markets. They provide liquidity, execution, clearing and risk solutions to a broad institutional client base including banks, hedge funds, asset managers, traders and producers.With an international footprint and significa...

Our client is a global financial services and market infrastructure business operating across commodities, energy and financial markets. They provide liquidity, execution, clearing and risk solutions to a broad institutional client base including banks, hedge funds, asset managers, traders and producers.With an international footprint and significa...

Software Engineer – Execution / Trading SystemsLondon | Office-Based | PermanentA high-performing market maker is looking to hire a Software Engineer to join its core engineering team building the systems that power live trading across global electronic markets.This is a strong opportunity for an engineer who enjoys performance-critical systems, cl...

Senior .Net Developer | London/Remote | £60,000 - £70,000C# | .Net | React | AI | Edtech | GCP | Google Cloud Platform | LLM | Looking to join a company with AI at the core of their identity? Want to have influence across a whole Engineering function? I am supporting a brilliant a Google backed Edtech startup which has built a data platform which e...

Senior .Net Developer | London/Remote | £60,000 - £70,000C# | .Net | React | AI | Edtech | GCP | Google Cloud Platform | LLM | Looking to join a company with AI at the core of their identity? Want to have influence across a whole Engineering function? I am supporting a brilliant a Google backed Edtech startup which has built a data platform which e...

Senior Java Developer | Belfast | £65,000-£80,000Senior back-end developer role within a newly established Belfast trading technology hub Java-focused; real-time exchange connectivity, event-driven architecture, distributed systems Small founding team of 4 engineers; site lead already in place (placed by Ocho) £65,000-£80,000 | Belfast based Ground...

🌍 Lead Python Developer – Climate Tech👥 Non-Profit | Major Philanthropic Backing | Real Engineering Problems📍 London (Hybrid, 2/3 days per week)🔧 Python, FastAPI, PostgreSQL, GCP, DockerI'm working with a fast-growing climate-tech non-profit tackling one of the most important infrastructure challenges in the energy transition. Backed by some of...

🌍 Lead Python Developer – Climate Tech👥 Non-Profit | Major Philanthropic Backing | Real Engineering Problems📍 London (Hybrid, 2/3 days per week)🔧 Python, FastAPI, PostgreSQL, GCP, DockerI'm working with a fast-growing climate-tech non-profit tackling one of the most important infrastructure challenges in the energy transition. Backed by some of...

Senior Dynamics Developer - Newport About the job Job summary Senior Dynamics Developer The IPO is a modern organisation which depends on its IT services to operate and innovate effectively. To provide up to date services to our customers systems need to be developed, improved, and maintained. This position plays a pivotal role in ensuring the core...