Sr. Application Developer

Full Stack Application Developer Overview Join a high-impact engineering team building next-generation conversational platforms that power real-time customer interactions at scale. This group owns critical services across voice, SMS, virtual agents, and contact center integrations. You will work within a small Natural Language and Automation team where each engineer has meaningful ownership. The focus is on developing AI-driven systems that stream live voice, understand intent in real time, and intelligently route and resolve customer interactions. Impact This role directly improves the customer experience by reducing friction in phone interactions, eliminating delays, and enabling faster, more natural conversations between customers and support systems. What You'll Do

• Design and build high-availability applications for real-time voice and conversational AI
• Develop virtual agents that interpret user intent, determine outcomes such as routing or callbacks, and respond with low latency
• Stream and process real-time voice data with a focus on scalability and performance
• Build internal tools for prompt strategies, analytics, and workflow orchestration
• Work across telephony, messaging, and contact center platforms
• Own services end-to-end including architecture, development, deployment, and production support
• Operate within a DevOps environment using AWS and Kubernetes
• Collaborate closely with cross-functional teams to deliver impactful solutions What You Bring

• Strong full stack development experience with system design and ownership of production systems

• Backend expertise with Golang and or Python in distributed environments

• Experience with real-time, streaming, or event-driven architectures

• Hands-on experience with AWS and Kubernetes

• Proven ability to build and support production-grade applications and troubleshoot issues

• Frontend development experience with JavaScript or TypeScript

• Experience with APIs, microservices, and NoSQL databases

• Familiarity with Docker, CI CD, and modern DevOps practices Nice to Have

• Experience with telephony or VoIP systems

• FreeSWITCH or contact center platform experience

• Event-driven architecture experience

• Infrastructure as Code tools

• OAuth2 or authentication frameworks

• Exposure to conversational AI or prompt engineering

• Opportunity to work on advanced AI systems in real-time environments

• Small team with high ownership and visibility

• End-to-end engineering responsibility across the full development lifecycle

• Collaborative and technically strong team environment

• Opportunity to convert to a permanent role Job Type & Location This is a Contract to Hire position based out of Carrollton, TX. Pay and BenefitsThe 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)

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.