Java Full Stack Developer - Broker Dealer in London, United Kingdom

Who is HelloKindred?

HelloKindred are specialists in staffing marketing, creative and technology roles, offering a range of talent solutions that can be delivered on-site, remotely or hybrid.

Our vision is to make work accessible and people’s lives better. We do this by disrupting traditional employment barriers – connecting ambitious talent to flexible opportunities with trusted brands.

Job Description

Anticipated Contract End Date/Length: December 31, 2026
Work set up: Hybrid (2–3 days per week in office)
Clearance required: BPSS eligibility required

Our client in the Information Technology and Services industry is looking for a skilled and motivated Java Full Stack Developer – Broker Dealer to design, develop, and maintain scalable enterprise applications supporting critical business functions across the firm. The ideal candidate will bring strong backend expertise in Java and modern frameworks, solid frontend development skills, and experience building secure, high-performance applications in cloud-enabled environments. Previous UK broker-dealer and capital markets experience is essential.

Responsibilities

• Design, develop, test, and deploy full-stack applications using Java.
• Apply UK broker-dealer and capital markets experience to support business and technical requirements.
• Build robust RESTful APIs and microservices for high-volume, low-latency systems.
• Collaborate with product owners, business analysts, architects, and QA teams to deliver high-quality solutions.
• Develop responsive, reusable UI components and integrate them with backend services.
• Participate in architecture reviews, code reviews, and technical design discussions.
• Optimize application performance, reliability, and scalability.
• Implement security, data protection, and compliance best practices for financial systems.
• Create and maintain technical documentation for code, APIs, and deployment processes.
• Troubleshoot production issues and coordinate timely resolutions with support teams.
• Contribute to CI/CD pipelines and DevOps automation practices.
• Apply sound software design principles and engineering best practices throughout the development lifecycle.
• Collaborate across global teams in an agile, fast-paced environment.
• Take ownership of deliverables, maintain attention to detail, and contribute to continuous improvement.

Qualifications

• Demonstrated hands-on experience with Java 8, 11, or 17 and Spring Boot, Kafka, Spring MVC, and Spring Security.
• Strong professional experience using Python.
• Essential experience in the UK broker-dealer sector and capital markets.
• Solid knowledge of REST APIs, microservices architecture, and messaging systems such as Kafka or RabbitMQ.
• Proficiency in frontend technologies, including Angular or React, JavaScript or TypeScript, HTML5, and CSS3.
• Practical experience with relational databases such as Oracle, SQL Server, or PostgreSQL.
• Good understanding of ORM frameworks, including Hibernate and JPA.
• Familiarity with build and dependency management tools such as Maven or Gradle.
• Experience using version control systems such as Git.
• Strong understanding of software design principles, data structures, multithreading, and concurrency.
• Excellent analytical, problem-solving, and communication skills.
• Ability to work collaboratively across global teams and contribute effectively in agile, fast-paced environments.
• A strong sense of ownership, attention to detail, commitment to engineering excellence, and focus on continuous improvement.
• Eligibility to meet the requirements for Baseline Personnel Security Standard (BPSS) clearance.
• Willingness and ability to work under a PAYE arrangement through an umbrella company.

Preferred

qualifications

• Background in financial services, investment banking, or capital markets.
• Exposure to cloud platforms such as AWS, Azure, or GCP and containerization technologies such as Docker and Kubernetes.
• Knowledge of caching and performance tools, including Redis, Elastic, and profiling tools.
• Familiarity with CI/CD tools such as Jenkins, GitHub Actions, or equivalent platforms.
• Experience with automated testing frameworks such as JUnit, Mockito, Cypress, or Selenium.
• Understanding of secure coding practices and regulatory and compliance requirements in banking environments.

Additional Information

Candidates must be legally authorized to live and work in the country where the position is based, without requiring employer sponsorship.

HelloKindred is committed to fair, transparent, and inclusive hiring practices. We assess candidates based on skills, experience, and role-related requirements.

We appreciate your interest in this opportunity. While we review every application carefully, only candidates selected for an interview will be contacted.

HelloKindred is an equal opportunity employer. We welcome applicants of all backgrounds and do not discriminate on the basis of race, colour, religion, sex, gender identity or expression, sexual orientation, age, national origin, disability, veteran status, or any other protected characteristic under applicable law.