Senior Software Engineer

Haystack
United StatesFull-timePosted Sep 16, 2026

About the role

A leading technology company is revolutionizing the live event ticketing industry, providing fans with effortless access to experiences and empowering venues with seamless audience connections. They are building an open entertainment ecosystem that simplifies and modernizes how people engage with live events.

The Role

Drive the development of AI-powered features to enhance the fan experience, collaborating closely with design and product teams.

Mentor and develop other web engineers, staying at the forefront of AI feature development and tooling.

Contribute to the evolution of the front-end tech strategy, with a specific focus on generative AI.

Ensure the company's primary platform is fast, reliable, and delightful for all users.

Work across the full stack, including Python, when necessary to deliver project goals.

Apply UI and product instincts to build inclusive and accessible web experiences.

What You'll Need

5+ years of professional experience in frontend software engineering, having led product initiatives end-to-end.

Proven experience with user-facing AI applications is preferred.

Exceptional grasp of JavaScript/TypeScript, staying updated with the latest specifications.

Familiarity with modern frameworks and client-side rendering techniques (e.g., React, Next.js).

Strong understanding of architectural principles and performance optimization techniques for dynamic web applications.

Ability to troubleshoot caching inefficiencies and distributed systems.

What's On Offer

Competitive salary with equity stake and discretionary annual bonus.

Flexible work environment (remote or hybrid) with a WFH stipend.

Unlimited PTO and up to 16 weeks of fully-paid family leave.

Comprehensive benefits package including 401(k) matching, health insurance, and wellness allowances.

Apply via Haystack today!

Responsibilities

  • Drive the development of AI-powered features to enhance the fan experience
  • Mentor and develop other web engineers
  • Contribute to the evolution of the front-end tech strategy
  • Ensure the company's primary platform is fast, reliable, and delightful for all users
  • Work across the full stack, including Python, when necessary
  • Apply UI and product instincts to build inclusive and accessible web experiences

Qualifications

  • 5+ years of professional experience in frontend software engineering
  • Proven experience with user-facing AI applications is preferred
  • Exceptional grasp of JavaScript/TypeScript
  • Familiarity with modern frameworks and client-side rendering techniques
  • Strong understanding of architectural principles and performance optimization techniques
  • Ability to troubleshoot caching inefficiencies and distributed systems

Benefits

  • Competitive salary with equity stake and discretionary annual bonus
  • Flexible work environment (remote or hybrid) with a WFH stipend
  • Unlimited PTO and up to 16 weeks of fully-paid family leave
  • Comprehensive benefits package including 401(k) matching, health insurance, and wellness allowances

Skills mentioned

Frontend DevelopmentJavaScriptTypeScriptReactNext.jsWeb AccessibilityPerformance OptimizationDistributed SystemsPythonGenerative AI

About Haystack

Haystack combines AI & expert vetting to deliver world-class tech candidates who are engaged, aligned, and ready to interview. We're trusted by over 400,000+ tech candidates, working in Software Engineering, Data, Design, DevOps, Cloud, Tech Management, Testing, Product & Delivery, Architecture and more. 100s of employers from startups and scale-ups like Atom Bank, DuckDuckGo and Goodlord to established enterprises like American Express, Dunelm and AWS use Haystack to connect with qualified tech talent that they can't find anywhere else.

Technology51-200 employeesNewcastle upon Tyne, England

H-1B sponsorship history

Historical employer filing data was found for Haystack. The employer record includes 1 historical certified applications. This is employer-level history, not a guarantee that this role currently offers sponsorship.