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Software Engineer (Kotlin), Institutional

United Kingdom, London · Job Posted December 06, 2025
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Job Description

We are looking to hire a Software Engineer to join our Institutional team in our London office. Blockchain.com is a high-performance culture marked by fearlessness and hyper productivity. You are a hardworking team player with a desire to learn and grow with us, someone who can work harder, faster, and smarter to deliver tangible results and process improvements.

Job Responsibility

  • Design and implement scalable, secure, and high-performance backend services in Java/Kotlin that power client-facing applications for trading, custody, and wealth management
  • Build robust APIs and microservices to support advanced dashboards, analytics tools, and mobile experiences
  • Collaborate closely with front-end engineers, product managers, and designers to deliver seamless, intuitive experiences for sophisticated investors
  • Architect solutions for portfolio management, trade execution, settlement, reporting, and analytics tailored to institutional and private clients
  • Optimize backend systems for low latency, high throughput, and fault tolerance
  • Integrate security best practices and advanced encryption to safeguard sensitive financial data
  • Continuously improve backend performance, reliability, and development workflows

Requirements

  • Strong hands-on experience with Kotlin in backend and distributed systems development
  • Proven expertise building scalable APIs, microservices, and backend platforms for complex financial or data-intensive applications
  • Familiarity with cloud deployments, and service-oriented architectures
  • Knowledge of messaging and streaming technologies (NATS, Kafka, or similar)
  • Solid understanding of algorithms, data structures, databases, and distributed systems
  • Knowledge of ledger systems is a strong plus
  • Passion for solving challenging technical and financial problems with clean, maintainable code
  • Commitment to quality-driven engineering, with a strong focus on testing (unit, integration, performance, and failure recovery)
  • Experience in fintech, trading, or wealth management platforms is a strong advantage

Nice to have

  • Knowledge of ledger systems
  • Experience in fintech, trading, or wealth management platforms

What we offer

  • Full-time salary based on experience and meaningful equity in an industry-leading company
  • Work from Anywhere Policy: You can work remotely from anywhere in the world for up to 20 days per year
  • ClassPass
  • Budgets for learning & professional development
  • Unlimited vacation policy
  • Apple equipment
  • The opportunity to be a key player and build your career at a rapidly expanding, global technology company in an emerging field
  • Flexible work culture
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