Senior Full Stack Engineer (Kotlin + React)

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

Job summary

Luxoft is seeking an experienced software engineer to drive the Equity Accelerator programme, modernizing Prime Finance Equities platforms. You will deliver end-to-end solutions across frontend and backend, focusing on cloud-native, event-driven architectures and real-time client features.

You will contribute to architecture, own significant components, work closely with stakeholders, and mentor peers while delivering high-quality, production-grade software in a complex market environment.

Qualifications

• 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 TDD practices and end-to-end ownership of software quality.
• Experience 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.

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 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

Event-driven systems

TDD practices

CI/CD

Capital markets

WebSockets

Architecture design

Tools

Kafka

Solace

Kubernetes

OpenShift

GitHub Copilot

ELK Stack

Grafana

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.