Sr. Application Developer

Application Developer - Conversational AI & Voice Systems

Full-Stack | Cloud | Real-Time Systems

About the Role

We're hiring a Application Developer to join a fast-growing Communication Platforms organization building next-generation conversational and telephony experiences used by customers at scale. This team owns mission-critical systems across voice, SMS, virtual agents, and contact-center integrations, and plays a direct role in shaping how customers interact with the business.
You'll join a small, high-impact Natural Language & Automation (NLA) team-a tight-knit group where each engineer has meaningful ownership. In this role, you'll help design and build real-time, AI-driven conversational systems that stream live voice, understand caller intent, intelligently route interactions, and seamlessly blend human and virtual agents.
This is a true full-stack role with deep exposure to telephony, conversational AI, cloud infrastructure, and hands-on DevOps. Prior telephony experience is a plus, but not required-strong engineering fundamentals, curiosity, and the ability to learn complex real-time systems are highly valued.

What You'll Do

• Design, build, and maintain high-availability, enterprise-grade applications supporting real-time voice and conversational AI use cases
• Develop AI-powered virtual agents that:
  • Understand why a customer is calling
  • Determine call disposition (routing, callbacks, human handoff)
  • Operate with low latency for natural, human-like interactions
• Stream and process live voice data in responsive, resilient, and scalable systems
• Build internal tools for prompting strategies, call analytics, workflows, and orchestration
• Collaborate closely with product, analytics, and engineering partners
• Work across telephony services, contact-center platforms, SMS, and conversational workflows
• Own services end-to-end, including:
  • System design and architecture
  • Development and testing
  • Deployment, monitoring, and production support
• Operate in a team-owned DevOps environment, including AWS and Kubernetes (EKS)
• Troubleshoot and resolve high-impact production issues with confidence and clarity
• Contribute to a culture that values ownership, collaboration, and high technical standards

What We're Looking For

Core Qualifications

• Full-stack engineering experience with strong system design instincts
• Hands-on backend development using Golang and/or Python
• Experience with distributed, real-time, event-driven, or low-latency systems
• Strong experience with AWS and Kubernetes (EKS) and comfort owning DevOps responsibilities
• Proven ability to build, support, and troubleshoot production-grade systems
• Curiosity, resilience, and enthusiasm for learning complex domains such as telephony and conversational AI

Front-End & Platform Experience

• Modern web development with JavaScript, TypeScript, and React
• API design and backend services development
• Experience with NoSQL databases (MongoDB or similar)
• CI/CD pipelines, Docker, and cloud-native development practices

Nice to Have (Strong Plus)

• Experience with VoIP / telephony systems
• FreeSWITCH development experience
• Event-driven architectures and streaming systems
• Linux systems experience
• Infrastructure as Code (Chef, AWS CDK, Troposphere)
• OAuth2 / authentication & authorization flows
• CRM integrations
• Exposure to conversational AI, prompting strategies, or real-time AI systems
• Experience working in Agile / Scrum environments

Why This Role

• Join a small, high-ownership team where your work directly shapes customer experience
• Build cutting-edge conversational AI and voice systems developed in-house
• Make a real impact by reducing phone friction and creating more natural, human interactions
• Strong opportunity for long-term growth and conversion to permanent employment
• Collaborative engineering culture with exposure across multiple initiatives

Job Type & Location
This is a Contract to Hire position based out of Agoura Hills, CA.
Pay and Benefits
The pay range for this position is $65.00 - $72.11/hr.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:
Medical, dental & vision
Critical Illness, Accident, and Hospital
401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available
Life Insurance (Voluntary Life & AD&D for the employee and dependents)
Short and long-term disability
Health Spending Account (HSA)
Transportation benefits
Employee Assistance Program
Time Off/Leave (PTO, Vacation or Sick Leave)
Workplace Type
This is a fully onsite position in Agoura Hills,CA.
Application Deadline
This position is anticipated to close on May 22, 2026.

About TEKsystems

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services

We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.