Senior Software Engineer - Java Full Stack, Futures Engineering

Clear Street; Greater London; On-site; GBP 75,000 - 95,000; Full time

Job summary

A financial technology firm seeks a Senior Software Engineer specializing in Java Full Stack development to lead the design and delivery of its Cleared Derivatives back-office system. The ideal candidate will have over 7 years of experience in back-end development, particularly in financial environments, alongside strong skills in microservices and Apache Kafka. Competitive compensation, equity, and a collaborative work culture are offered, with a requirement of at least three days in-office presence.

Benefits

Competitive compensation packages

Company equity

Full medical and dental insurance

Qualifications

• 7+ years of professional experience in back-end development with Java.
• 5+ years of experience in a financial institution, preferably in FCM or Broker-Dealer environments.
• Experience building microservices and understanding of design patterns.

Responsibilities

• Lead design, development, and delivery of back-office applications.
• Work with teams to optimize server-side applications and APIs.
• Deploy applications in Kubernetes clusters.

Skills

Back-end development with Java

Microservices development

Problem-solving skills

Teamwork

Agile methodologies

Tools

Kubernetes

Apache Kafka

MongoDB

ReactJS

Docker

Job description

Senior Software Engineer - Java Full Stack, Futures Engineering

London, UK

About Clear Street

Clear Street’s mission is to give every sophisticated investor access to every asset, in every market, through a unified platform built for speed, transparency and scale. We give our clients the technology, tools, and service once reserved for the largest institutions, rebuilt with modern infrastructure. Our single, cloud‑native, end‑to‑end capital markets platform powers investor growth today and is transforming how they can interact with markets tomorrow.

Role

Java-Focused Full Stack Developer. As a lead developer, you will be building and maintaining an enterprise Cleared Derivatives back‑office system. This role emphasizes back‑end development using Java, with responsibilities in building scalable microservices and integrating with a modern technology stack. You will also contribute to front‑end development using ReactJS and deploy applications on Kubernetes and Docker.

Key Responsibilities

• Lead the end-to-end design, development, and delivery of Cleared Derivatives back‑office applications.
• Work in a project team alongside other developers to architect, develop, and optimize server‑side applications, RESTful APIs, and microservices using Java.
• Implement event‑driven architectures with Apache Kafka for real‑time data processing.
• Contribute to front‑end development using ReactJS, focusing on integrating UI components with back‑end services.
• Optimize application performance, security, and reliability.
• Deploy and manage applications in Kubernetes clusters, ensuring high availability and scalability.
• Provide technical support for application.
• Collaborate with cross‑functional teams across the organization to architect solutions and deliver robust features.
• Participate in code reviews, unit testing, and CI/CD pipeline maintenance.

Required Skills & Qualifications

• 7+ years of professional experience in back‑end development with Java.
• 5+ years of experience within a financial institution, preferably in FCM (Futures Commission Merchant) or Broker‑Dealer environments.
• Ability to work under pressure and meet deadlines.
• Experience building microservices. Strong understanding of design patterns, multithreading, and performance optimization.
• Strong problem‑solving skills and ability to debug complex systems.
• Hands‑on experience with Apache Kafka for event streaming and messaging.
• Proficiency in MongoDB or AWS DocumentDB for NoSQL database design and querying.
• Familiarity with Apache Solr for search and indexing, Apache ZooKeeper for distributed system coordination, and HashiCorp Vault for secrets management.
• DevOps: Experience with Kubernetes for container orchestration and deployment. Familiarity with CI/CD tools and monitoring tools (e.g., Datadog).
• Excellent communication and teamwork skills.
• Understanding of Agile/Scrum methodologies.
• Preferred: Experience with AWS services and cloud‑native development.

We Offer

Competitive compensation packages, company equity, pension, and full medical and dental insurance. Our belief has always been that we are better as a business when we are all together in person. As such, we are requiring employees to be in the office a minimum of three days per week.

Our top priority is our people. We’re continuously investing in a culture that promotes collaboration. We help each other through challenges and celebrate each other's successes. We believe that modern workplaces succeed by virtue of having high‑performance workforces that are diverse – in ideas, in cultures, and in experiences. We put in the effort to make such a workplace a daily reality and are proud to be an equal opportunity employer.