
Java Developer (React)
Talan
Posted about 3 hours ago
Job Description
Java Developer (React)
Location - London
On-Prem 3 Days per Week
Talan is looking for a talented Java Developer with React experience to join our team delivering cutting-edge Front Office solutions within Global Markets environments.
You will play a key role in designing and enhancing regulatory, alerting, and sales enablement platforms, directly supporting front-office users and business stakeholders across capital markets.
This is an exciting opportunity to work on high-impact, real-time applications in complex trading environments, collaborating with both business and technical teams to drive innovation and performance.
You will be part of a Front Office technology ecosystem supporting Global Markets activities, working on advanced sales and trading tools used by front-office teams.
The role operates within a distributed, agile delivery model, collaborating closely with:
- Business stakeholders (sales & trading)
- Application support teams
- QA and testing teams
- Distributed development teams across Europe and globally
You will contribute to the development of modern, scalable applications used in fast-paced, business-critical environments.
Key Responsibilities
- Design, develop and maintain front-office sales tools and associated applications
- Contribute across the full software development lifecycle (analysis, design, development, testing, deployment, and support)
- Build and enhance high-performance, low-latency applications
- Develop RESTful APIs and modern web interfaces (React)
- Collaborate closely with business stakeholders to understand requirements and deliver value-driven solutions
- Work alongside production support teams to ensure smooth releases and operational stability
- Provide 3rd line support and assist in troubleshooting production issues
- Participate in code reviews and continuous improvement initiatives
Skills & Experience (Required)
- Strong experience in Java (server-side development)
- Experience building web-based applications and REST APIs
- Solid experience with JavaScript frameworks, particularly React
- Good understanding of application performance and optimisation
- Excellent communication skills, both written and verbal
- Ability to operate effectively in agile, collaborative environments
- Experience with relational databases and SQL
- Exposure to investment banking or capital markets environments
- Experience with multi-threaded and distributed systems
- Familiarity with CI/CD tools (Jenkins, TeamCity) and deployment tools (Ansible)
- Knowledge of front office trading systems (FX, Rates, Credit, or derivatives)
- Experience with monitoring and observability tools
- Strong problem-solving mindset with a proactive approach
Additional Information
#TalanUK
Job details
Talan
About
Founded in France, Talan has grown into an international group that supports our clients in their end-to-end Data & AI transformation by combining management consulting with technological expertise. With over 6,000 employees across five continents, we accelerate our clients' transformations through long-term partnerships, creating measurable and sustainable impact. Our value proposition is built on a structured innovation ecosystem: 2,500 Data & AI experts, proprietary solutions built on advanced models, and an applied research, experimental development, and innovation laboratory. For more than 20 years, we have been translating technological innovation into competitive advantages across vital sectors: banking and financial services, energy, transport and mobility, luxury and retail, and healthcare. Driven by our promise of "Positive Innovation," we have established ourselves as a leading player in addressing the growing complexity of economic, technological, and regulatory environments.
Key Team Members

Olivier Grosjean
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