Software Engineer, Test & Infrastructure III

Who You Are

You catch problems before they explode—testing edge cases and degraded paths others overlook so production fire drills can be prevented. You care deeply about the tools you use and create, shaping the internal frameworks and pipelines your team depends on. Your work validates millions of real-time customer interactions every day, from web to telephony platforms, and you’re always growing through peer reviews, knowledge sharing, and mentoring. You thrive in flexible, human-centered environments where hybrid collaboration and sustainable engineering aren’t just buzzwords, but the way you work. If you love building robust, high-throughput test platforms as much as we do, we’d love to hear from you!

At Vail, our QA Engineering team is deeply technical—we don’t just validate features, we build the frameworks and infrastructure that test real-world signaling flows, analyze media quality, and run performance tests that mimic millions of live voice and web sessions. We're engineers at heart, with a QA-first mindset and a passion for building robust, scalable systems that reveal issues before our customers do.

What You'll Do

Qualifications - We encourage you to apply if you think your experience may be a match, even if you do not meet all of the qualifications.

Please note that while we have offices in both Deerfield and Chicago, this position is based in our Deerfield office. Currently, the role is not eligible to be based in the Chicago office.

Who We Are

At Vail, we believe in the unique power of voice interactions to create more expressive, more intimate, and more efficient interpersonal interactions. Using Vail technology, we make millions of voice interactions better every day. We process around 10% of all toll-free call traffic in the U.S.; 1 in 10 times, when someone calls a customer support hotline, Vail is routing or interacting with that call.

We are rapidly growing across multiple dimensions, including our customer base, the scope of products we offer, and the size of our team. Now is the right time for a strong candidate to join and grow with us. We have a supportive culture where employees are encouraged to achieve both personal and team goals because we believe growth leads to both business impact and personal fulfillment.

We offer competitive compensation and affordable benefits with flexibility and choice to meet individual and family (including Domestic Partnerships) needs, including:

• Multiple medical, dental, and vision plan options 
• Company-paid life insurance, short and long-term disability 
• 401(k) savings plan with company match (50% on first 6% of employee contribution) 
• 35 days total annual PTO 
• Annual Bonus Program  
• Paid maternity and paternity leave 
• Relocation allowance 
• Employee referral bonus 
• Gym membership 
• Technical and Professional Development stipend

We are striving to implement and sustain an inclusive and equitable work environment for all employees by sourcing underrepresented groups and continually empowering those individuals within our organization to further enrich Vail’s communication solutions. We recognize that equitable and unique individuals benefit our teams’ problem-solving, innovation, and development efforts.

Our offices are located in Deerfield and Chicago, IL. Interviews and onboarding are conducted in our offices when possible. We observe a hybrid work format that provides employees with the flexibility to collaborate with team members based on business needs.

Compensation: USD 113,450 – 132,000 per year salary