Senior Full Stack Engineer (Kotlin + React)

Luxoft; Greater London; On-site; GBP 90,000 - 140,000; Full time

Job summary

Luxoft in London seeks an experienced Java/Kotlin developer to contribute to the Equity Accelerator programme, a multi-year transformation of Prime Finance Equities platforms. You will design and build scalable, event-driven trading and post-trade systems in a cloud-native environment.

You will collaborate with business stakeholders, apply capital markets domain knowledge, and own software quality through TDD, CI/CD, and frequent production releases.

Qualifications

• 7+ years of Java development experience.
• 2+ years of Kotlin development experience.
• 2+ years of frontend development with React and/or Angular.
• Strong JavaScript, TypeScript, HTML, and CSS skills.
• Experience designing and developing event-driven distributed systems.
• Hands-on with messaging patterns, event processing, resiliency, and failure handling.
• Strong TDD practices and end-to-end software quality ownership.
• Experience in Agile environments with CI/CD and trunk-based development.
• Hands-on experience in capital markets, including trade lifecycle and position management.
• Experience building real-time applications using WebSockets or streaming technologies.

Responsibilities

• Design, develop, and support full-stack solutions across frontend and backend components.
• Build and enhance event-driven trading and post-trade applications.
• Contribute to architecture and technical design decisions.
• Develop responsive and real-time user interfaces for equities platforms.
• Implement and maintain APIs, messaging integrations, and backend services.
• Ensure high code quality through Test-Driven Development (TDD).
• Participate in CI/CD practices, trunk-based development, and frequent production releases.
• Troubleshoot production issues and maintain data integrity in complex market environments.
• Collaborate closely with business stakeholders, product teams, and engineering peers.
• Apply capital markets domain expertise to business and technical problem-solving.
• Mentor team members and contribute to engineering best practices.

Skills

Java development

Kotlin development

Frontend development

JavaScript/TypeScript/HTML/CSS

Event-driven architecture

Messaging systems

Test-Driven Development

CI/CD

Capital markets

Real-time data

System design

Tools

Kafka

Solace

TIBCO EMS

Kubernetes

OpenShift

OpenTelemetry

ELK Stack

Grafana

HashiCorp Vault

CyberArk

Job description

Project description

Join the Equity Accelerator programme, a strategic multi-year transformation initiative focused on modernizing Prime Finance Equities platforms. The role involves developing and enhancing institutional-grade trading and post-trade systems using cloud-native, event-driven architectures while delivering advanced client-facing features. Engineers will work within a complex production environment, combining deep technical expertise with strong capital markets knowledge.

Responsibilities

• - Design, develop, and support full-stack solutions across frontend and backend components.- Build and enhance event-driven trading and post-trade applications.- Contribute to architecture and technical design decisions.- Develop responsive and real-time user interfaces for equities platforms.- Implement and maintain APIs, messaging integrations, and backend services.- Ensure high code quality through Test-Driven Development (TDD).- Participate in CI/CD practices, trunk-based development, and frequent production releases.- Troubleshoot production issues and maintain data integrity in complex market environments.- Collaborate closely with business stakeholders, product teams, and engineering peers.- Apply capital markets domain expertise to business and technical problem-solving.- Mentor team members and contribute to engineering best practices.

SKILLS

Must have

• - 7+ years of Java development experience.- 2+ years of commercial Kotlin development experience.- 2+ years of frontend development experience with React and/or Angular.- Strong JavaScript, TypeScript, HTML, and CSS skills.- Proven experience designing and developing event-driven distributed systems.- Hands-on experience with messaging patterns, event processing, resiliency, and failure handling.- Strong Test-Driven Development (TDD) practices and end-to-end ownership of software quality.- Experience working in Agile environments with CI/CD, trunk-based development, and frequent production releases.- Hands-on experience in capital markets, including trade lifecycle and position management.- Experience building real-time applications using WebSockets or streaming technologies.- Ability to contribute to architectural discussions and operate independently in complex production environments.

Nice to have

- Kafka, Solace, or TIBCO EMS.- SQL Server, MongoDB, and S3/Object Storage.- Kubernetes and OpenShift.- OpenTelemetry, ELK Stack, Grafana.- HashiCorp Vault and CyberArk.- Prime Brokerage, Synthetic Swaps, or Cash Equities domain experience.- Regulatory reporting exposure (EMIR, MiFID, 871(m)).- Experience integrating with risk, valuation, and reporting platforms.- GitHub Copilot, Devin, or other AI-assisted development tools.- Exposure to frontend technologies (React, Angular) for cross-functional collaboration.