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Haystack Linkedin · Posted 12d ago

Software Engineer

London, Westminster, United Kingdom

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Staff Software Engineer - Back End

We're working with a global fintech powerhouse that is revolutionising the way millions of people interact with money through high-scale distributed systems and cutting-edge cloud architecture on this exciting opportunity.

This is a high-impact leadership role where you will drive the technical strategy for major business domains, leveraging deep Java expertise and cloud-native solutions. You'll move beyond individual delivery to shape architectural vision, mentor top-tier engineering talent, and influence the direction of a world-class technology organisation.

The Role

  • Define and drive the long-term technical strategy and distributed systems architecture across multiple engineering teams.
  • Lead the design and implementation of highly scalable back-end services using Java and modern cloud platforms (AWS/GCP).
  • Establish and evangelise engineering excellence standards, reusable frameworks, and best practices to boost developer productivity.
  • Act as a primary technical bridge between senior leadership, product owners, and architects to align technology with business outcomes.
  • Proactively manage technical debt and guide complex incident resolution across diverse technical domains.

What You'll Need

  • Expert-level proficiency in Java and professional experience building robust, high-throughput distributed architectures.
  • Extensive experience with cloud computing platforms, specifically AWS, including infrastructure-as-code and serverless patterns.
  • Proven track record of leading multi-team technical initiatives and influencing engineering culture without direct authority.
  • Strong background in system design, Microservices, and maintaining high service quality standards in a DevOps environment.
  • Ability to steer Communities of Practice and mentor mid-to-senior level engineers to foster continuous technical growth.

What's On Offer

  • Flexible hybrid working model based in a state-of-the-art London office featuring a rooftop running track and premium coffee facilities.
  • Competitive reward package including performance-related bonuses, pension scheme, and private medical insurance.
  • Significant investment in your growth through tailored training programmes and access to industry-leading technical forums.
  • A highly inclusive culture with robust internal networks like Women in Tech and LGBTQ+ support groups.

Apply via Haystack today!

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