Full-Time

Software Engineer

Test & Infrastructure II

Vail Systems

Vail Systems

51-200 employees

Scalable telephony software with APIs

Compensation Overview

$89.4k - $116.4k/yr

Chicago, IL, USA + 1 more

More locations: Highland Park, IL, USA

Hybrid

Hybrid work; on-site days expected at Deerfield or Chicago offices.

Category
Software Engineering (1)
Required Skills
WebRTC
Kubernetes
Python
JavaScript
Grafana
NoSQL
Ruby
JUnit
SQL
Java
Docker
C#
Perl
Jenkins
C/C++
Kibana
Helm
Requirements
  • Bachelor's degree in Computer Science/Engineering or a related field, or equivalent experience
  • Experience: Typically, 2–5 years in software development, test automation, or QA infrastructure engineering
  • Programming Skills: Strong proficiency in one or more of Ruby, Java, C#/.NET, C++, Perl, Python, or JavaScript
  • Frameworks & Tools: Experience with JUnit, TestNG, PyTest, RSpec, Cucumber, or equivalent automation frameworks
  • CI/CD & Containers: Working experience with Jenkins (or similar), Docker, and basic Kubernetes workflow (jobs, pods, Helm charts)
  • Systems Knowledge: Familiarity with distributed architectures, API testing, and network-level debugging
  • Telecom/Media (Preferred): Exposure to SIP/SDP/RTP, WebRTC, or similar signaling and media systems
  • Databases: Solid understanding of SQL and NoSQL databases for data-driven testing
  • Analytical Skills: Strong problem-solving mindset, able to triage and isolate issues across multiple layers of the stack
  • Collaboration: Experience in Agile environments; comfortable contributing to cross-functional sprint work, code reviews, and retrospectives
Responsibilities
  • Design and Extend Automation Frameworks: Build maintainable, modular test infrastructure in Python, Perl, Java, or Ruby that adapts to evolving APIs and systems
  • Develop Advanced Test Suites: Own automation for complex functional, integration, and regression scenarios across distributed microservices and telephony systems
  • Validate Real-Time Systems: Contribute to test harnesses that validate signaling flows (SIP, RTP, SDP, WebRTC) and API transactions under varying network conditions
  • Enhance CI/CD Integration: Implement, optimize, and maintain automated test pipelines in Jenkins or similar systems, including containerized and Kubernetes-based environments
  • Collaborate Across Disciplines: Partner with developers, QA peers, and DevOps engineers to ensure tests are integrated early in the release cycle and deliver meaningful insights
  • Analyze Failures & Root Causes: Use log aggregation tools, packet captures, and dashboards (e.g., Kibana, Grafana) to diagnose failures and improve coverage or resiliency
  • Contribute to Test Data & Metrics: Work with SQL and NoSQL databases to generate and validate test data, interpret automation results, and measure performance
  • Mentor & Share Knowledge: Help guide junior engineers in automation practices, framework design, and debugging strategies
  • Drive Continuous Improvement: Identify gaps in test coverage, reliability, and efficiency—propose and implement technical solutions that raise QA maturity
Desired Qualifications
  • Telecom/Media (Preferred): Exposure to SIP/SDP/RTP, WebRTC, or similar signaling and media systems

Vail Systems provides scalable, fault-tolerant telephony software services for large enterprises across financial services, retail and hospitality, software, and wireless industries. Its offerings include advanced network routing and call control, caller authentication and risk scoring, conversational IVR/IVA solutions, and customer experience analytics. Customers can engage Vail Professional Services or build on the FreeClimb voice and messaging API to integrate telephony features into their apps. The goal is to help enterprises deliver safer, more reliable, and scalable customer care by combining strong security, platform reliability, and a broad suite of telephony tools in one ecosystem.

Company Size

51-200

Company Stage

N/A

Total Funding

N/A

Headquarters

Deerfield, Illinois

Founded

1991

Simplify Jobs

Simplify's Take

What believers are saying

  • STIR/SHAKEN compliance deadline September 18, 2025 creates demand for authentication services among non-compliant providers.
  • FCC removal of 1,200+ non-compliant providers August 25, 2025 consolidates market toward compliant operators like Vail.
  • Enterprise reliance on legacy VoiceXML hosting creates sticky customer relationships resistant to cloud migration.

What critics are saying

  • Twilio's FreeClimb acquisition commoditizes Vail's API platform, eroding pricing power and differentiation.
  • Amazon Connect captures 35% market share with AI-native IVR, undercutting Vail's legacy VoiceXML hosting.
  • Microsoft Azure Communication Services migrates Vail's 30% OCS hosting clients via forced platform upgrades.

What makes Vail Systems unique

  • Carrier-grade collocation facilities across Chicago, Southfield, and Aurora ensure fault-tolerant delivery for Fortune 500 clients.
  • Comprehensive platform handles billions of interactions yearly with 24/7 monitoring across voice, messaging, and conferencing.
  • FreeClimb API enables enterprise customers to build custom voice applications without vendor lock-in constraints.

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Benefits

Health - When you work hard, it’s important to stay healthy. Our competitive benefits package includes medical, dental, and vision insurance options to keep you healthy and happy.

Financial/Savings - We pride ourselves with rewarding great work with great compensation. Plan ahead with our 401(k) Retirement Plan with company match. Take advantage of our pre-tax transit program to save money from parking to train tickets.

Work/Life Balance - With flexible work hours, open workspaces, casual office attire, and employee outings, it’s easy to work hard, play hard, and enjoy a balanced lifestyle.

Vacation - We believe that time away from the office is important, and key to employees’ satisfaction and productivity at work. With a generous accrual of vacation in addition to holidays, our team members can take off the time they need to come back revitalized.

Wellness - We encourage an active lifestyle by providing memberships to gyms near each of our office locations. We also host periodic wellness events and keep our office kitchens stocked with yummy, healthy snacks!

Have Some Fun! - We encourage employees to engage with each other outside of their teams. We sponsor runners in the JP Morgan Chase Corporate Challenge, the annual Vail Ringers softball team, and have a group training for the Chicago Triathalon, as well as host book clubs, hackathons and game nights.

Company News

TribTown
Oct 20th, 2023
Columbus Speedway Go-Karts to host final points race

Vails was named Rookie of the Year.

SVDaily
Feb 22nd, 2021
Vail Systems, Inc. recognized as Level 1 Service Provider on Feb 22nd 21'.

Credit Suisse has partnered with UnitedLe CHICAGO--(BUSINESS WIRE)-- #HIPAA--Vail Systems announced today that FreeClimb is certified as a Level 1 Service Provider under the Payment Card Industry Data Security Standard (PCI DSS), and is compliant with the Health Insurance Portability and Accountability Act (HIPAA).