Senior Java Developer

GMEX Group; London; On-site; GBP 60,000 - 85,000; Full time

Job summary

A financial technology firm in London seeks a sharp Senior Java Developer to join a collaborative team. The role focuses on building trading venues and infrastructure, with emphasis on writing clean, maintainable code. Ideal candidates are passionate learners with a good understanding of peer-to-peer networks and core Java SE experience. This position offers the chance to grow in a fast-paced, agile environment.

Qualifications

• Experience in developing high throughput, low latency systems is an advantage.
• Knowledge of financial markets and blockchain technology is beneficial.

Responsibilities

• Participate in building trading venues and associated infrastructure.
• Contribute to the development cycles and codebase ownership.

Skills

Core Java SE

Desire to learn

Passion for writing clean, re-usable code

Understanding of peer-to-peer networks

Tools

Java

Spring

Hibernate

AWS/Cloud deployment

Maven

FIX

SVN / GIT

Job description

1. Job purpose

We are looking for a sharp Senior Java Developer to play a key role in a small collaborative team building trading venues and associated infrastructure. We follow rapid development and deployment cycles for projects and share ownership of the entire codebase, so you will get great experience across a variety of exchange applications and financial product types. We care about the code that we write and we want a developer that is more interested in writing clean, maintainable, efficient code rather than a quick hack.

Any former experience with specific cryptocurrencies, and/or related skills such as decentralized finance (DeFi), tokenisation, trading, matching engine, clearing and settlement as well as capital markets system integration will be a very useful complement to the above.

2. Key technology used

• Primary: Java 8+
• Secondary: Spring
• FIX
• Hibernate (Postgres)
• Sockets
• Linux
• Maven
• AWS/Cloud deployment
• SVN / GIT
• EPL (Esper)
• JMS (ActiveMQ)

3. Methodology

• Agile / Scrum
• Continuous integration
• Test automation
• TDD

4. Requirements

• Must have
  • Core Java SE
  • Desire to learn
  • Passion for writing clean, re-usable code
  • Understanding of peer-to-peer networks
• Nice to have
  • High throughput, low latency systems
  • Financial markets
  • FIX
  • Blockchain
  • Spring
  • Hibernate
  • Complex event processing / EPL
  • SQL

5. Company culture

We provide best of breed trading venue and post-trade solutions to global financial markets and have clients across the globe and across multiple asset types. We value keen, bright people who want to make a difference to a project and who want to learn and expand their abilities.

Being a fast-growing, agile company, we are not stifled by the red tape that can tie up larger organisations and we are able to give staff the opportunity to contribute or to assume leadership for new approaches and initiatives - the only limitation will be your ambition!