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Senior Software Engineer (Fullstack)

Date Posted: Jun 11, 2026

Job #1687981
Contract
London, London, England
5000 - 6500 per month (USD)

Fullstack Senior Software Engineer

Location: Remote

We are looking for a talented Senior Fullstack Software Engineer to join a high-performing product engineering team focused on building scalable, modern cloud-native applications. This role is best suited to an experienced engineer who is stronger on the backend (approximately 70% backend / 30% frontend) and enjoys designing robust distributed systems while still being comfortable contributing across the full stack.

You will play a key role in shaping technical direction, building scalable event-driven platforms, and contributing to product thinking - not just delivering code. We are looking for someone with strong ownership, accountability, and the ability to think about the wider business and customer impact of the solutions they build.

This position requires alignment with US-based teams, and so the working hours must overlap.

What You'll Be Doing

  • Designing, building, and maintaining scalable backend services using Node.js and TypeScript
  • Developing and supporting modern frontend applications using React and Next.js
  • Building robust RESTful APIs and backend integrations
  • Contributing to distributed, cloud-native systems running on AWS
  • Designing and implementing event-driven architectures and queue-based systems
  • Working with SQL databases including MySQL and PostgreSQL
  • Driving engineering best practices, scalability, reliability, and performance improvements
  • Collaborating closely with Product, Engineering, and stakeholders to shape technical solutions
  • Taking ownership of features and systems throughout the full software lifecycle
  • Mentoring engineers and contributing to technical discussions and architectural decisions

Required Skills & Experience

  • Strong experience as a Software Engineer / Senior Software Engineer in modern product-focused environments
  • Excellent backend development experience with:
    • Node.js
    • TypeScript
    • REST APIs
  • Strong frontend experience with:
    • React
    • Next.js
    • TypeScript
  • Experience building applications in AWS cloud environments (or other cloud platforms)
  • Strong understanding of scalable and distributed system design
  • Commercial experience working with:
    • MySQL
    • PostgreSQL
  • Proven experience building event-driven architectures and working with queuing/messaging systems (highly important)
  • Ability to write clean, maintainable, and scalable code
  • Strong problem-solving and debugging skills

What We're Looking For

  • Strong product mindset - someone who thinks beyond just delivering tickets and understands the "why" behind engineering decisions
  • Ownership and accountability for technical delivery and outcomes
  • Ability to contribute to architectural direction and scalability initiatives
  • Comfortable working in fast-paced, collaborative engineering environments
  • Passion for building high-quality, scalable software products
  • Strong communication and stakeholder collaboration skills

About Korn Ferry

Korn Ferry unleashes potential in people, teams, and organizations. We work with our clients to design optimal organization structures, roles, and responsibilities. We help them hire the right people and advise them on how to reward and motivate their workforce while developing professionals as they navigate and advance their careers. To learn more, please visit Korn Ferry at www.Kornferry.com

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