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Haystack

Senior Software Engineer

Europe (non-EU)

August 19, 2026 at 8:25 AM

✨ AI summary

Location

  • London, United Kingdom

Programming Languages

  • JavaScript
  • Java
  • .NET
  • TypeScript
  • Node.js
  • Python

Frameworks

  • React
  • Angular
  • Jest

Cloud Services

  • AWS

Databases

  • SQL

Experience Level

  • 7+ years designing and developing web applications and services
  • 5+ years designing and developing web applications with modern UI frameworks
A world-leading private investment management firm, dedicated to delivering superior investment results and service to institutional clients globally, is seeking a talented individual to join their team.

The firm offers comprehensive investment management capabilities across nearly all segments of the global capital markets, driven by robust proprietary research and a collaborative culture.

The Role

  • Contribute to the delivery of high-quality investment research solutions, including architecture, design, implementation, testing, deployment, and support.
  • Work with business teams, engineers, and business analysts to review and qualify business requirements, functional specifications, use cases, and test plans.
  • Design new prototypes and develop new software components across the full stack – services, web and mobile clients, infrastructure, and back-end.
  • Coordinate and facilitate infrastructure upgrades, disaster recovery testing, and cross-functional projects across various IT teams.
  • Modify and enhance existing systems to incorporate new functionality and optimize for performance and maintainability.
  • Provide technical guidance to ensure capabilities are developed with the latest methods and highest standards, including implementing AI-driven solutions.

What You'll Need

  • 7+ years of experience designing and developing web applications and services using JavaScript, Java, .Net, or similar enterprise technologies.
  • 7+ years of experience designing and developing complex web services using REST, TypeScript, JavaScript/NodeJS, Jest, Java, Python, or related technologies.
  • 5+ years of experience designing and developing web applications using HTML5, CSS, and modern UI frameworks like React or Angular.
  • Experience with modern software development and testing methodologies such as Artifactory, GIT, and Jenkins CI, and developing applications with AWS cloud technologies.
  • Intermediate-level experience with SQL and various software development methodologies like Agile.
  • Strong ability to communicate effectively with both technical and non-technical audiences, manage conflicting priorities, and learn quickly.
  • BS or BA degree in Computer Science, Math, Physics, Statistics, or a related subject.

What's On Offer

  • An opportunity to build and evolve an innovative, industry-leading technology platform.
  • Work with exceptional technology and business professionals on cross-platform, data-driven projects.
  • A collaborative culture that encourages independent thought and healthy debate.
  • A commitment to building and maintaining a diversified workforce and broad consideration of candidates.

Apply via Haystack today!