Senior Full Stack Engineer

Senior Full Stack Engineer

Salary Range: $115,000–$130,000

Location: Hybrid role; three days each week on site at our Chicago, IL office.

VAST builds the operating and financial backbone for fast‑growing, cash‑intensive businesses, combining hands‑on execution with purpose‑built software, automation, and AI‑enabled workflows. We provide technology‑enabled shared services, financial infrastructure, and operational support to partners across the U.S. and Puerto Rico, with deep roots in route gaming and other multi‑location businesses. Our teams work directly inside the operations—handling real cashflows, real data, and real constraints—while designing systems that make the business faster and easier to scale.

We focus on execution first: accurate books, strong controls, and dependable processes. From there, we build automation, software, and AI‑enabled workflows that eliminate manual work and raise the standard for how the back office operates.

As our Senior Full Stack Engineer, you’ll be one of the founding members of our engineering team.

• System Architecture & Design:
  Define and evolve our technical architecture across the stack—frontend, backend, APIs, data, and cloud infrastructure.
• Technical Leadership:
  Set coding standards, architectural patterns, and best practices for engineering teams.
• Scalability & Performance:
  Ensure our systems are built to handle growth efficiently and reliably.
• Hands‑On Development:
  Lead by example with high‑quality code contributions across the stack.
• Cross‑Functional
  
  Collaboration:
  
  Work closely with Product, Design, and Business Stakeholders to align on technical vision and deliver seamless experiences.
• Code Reviews & Mentorship:
  Uplevel the engineering team through mentorship, knowledge sharing, and thoughtful reviews.
• Technology Evaluation:
  Research and recommend new tools, frameworks, and practices to stay ahead of the curve.

• 5+ years of experience in full‑stack development, with 2+ years in a start‑up environment.
• Deep experience in both front‑end and back‑end frameworks (e.g., Vue, Type Script, Tailwind, and Laravel/PHP).
• Strong knowledge of cloud infrastructure (AWS, Forge, or Azure) and Dev Ops best practices.
• Proven track record designing scalable, secure, and maintainable systems.
• Ability to balance hands‑on engineering with high‑level architectural strategy.
• Excellent communication skills and a collaborative mindset.

• Competitive salary + performance bonuses
• Work with a fast‑growing, tech‑forward company
• Direct impact on go‑to‑market success and company growth