Senior Software Developer, AI Labs

TextNow•San Francisco, CT

1d•Remote

About The Position

We believe that communication belongs to everyone. Our mission is to democratize phone service and remove barriers that prevent people from staying connected. As TextNow continues to evolve, Artificial Intelligence is becoming a foundational capability across our products, operations, and employee experience. Our AI Labs team is responsible for identifying, validating, and scaling AI-powered solutions that create measurable impact for customers and employees. We're looking for a Senior Software Developer who can help transform AI opportunities into production-ready systems, partner with stakeholders across the business, and accelerate TextNow's adoption of AI technologies.

Requirements

5+ years of software development experience
Experience designing and delivering production-grade software systems
Strong programming skills in one or more modern languages (Go, Python, TypeScript, Ruby, or similar)
Experience with cloud platforms and modern deployment practices
Hands-on experience building applications with Large Language Models
Experience training custom models
Understanding of prompt engineering, evaluation methodologies, and AI system design
Experience with workflow automation and orchestration platforms
Familiarity with retrieval systems, vector databases, knowledge management, or agent frameworks
Comfortable operating in ambiguous environments with evolving requirements
Strong communication skills with technical and non-technical audiences
Demonstrated ability to lead projects from concept through deployment
Ability to identify opportunities independently and drive execution
Curious and pragmatic mindset
Strong ownership mentality
Bias toward experimentation and learning
Able to balance speed with long-term sustainability
Excited by solving business problems using technology

Nice To Haves

Experience building enterprise AI solutions
Experience with OpenAI, Anthropic, Google, or open-source model ecosystems
Experience with observability and AI performance monitoring
Experience implementing AI governance, evaluation, or security frameworks
Telecommunications industry experience
Experience building internal developer productivity tools

Responsibilities

Build AI-Powered Solutions: Design, develop, and deploy AI-enabled applications, services, and automations. Build internal tools and intelligent workflows using LLMs, AI agents, and orchestration frameworks. Evaluate emerging AI technologies and rapidly prototype new concepts. Transform proofs-of-concept into scalable production systems.
Lead Technical Delivery: Drive architecture and implementation decisions for AI initiatives. Define patterns and standards for AI application development. Balance experimentation speed with security, governance, and operational excellence. Ensure solutions are reliable, observable, maintainable, and cost-effective.
Enable the Organization: Partner with business stakeholders to identify high-value AI opportunities. Translate business problems into technical solutions. Consult with teams across Product, Engineering, Customer Care, Trust & Safety, Marketing, Finance, and Operations. Help teams adopt AI capabilities and best practices.
Build Internal AI Capabilities: Develop reusable AI services, frameworks, and components. Create integrations with enterprise platforms and business systems. Design automation workflows that reduce manual effort and increase operational efficiency. Contribute to AI governance, evaluation frameworks, and responsible AI practices.
Mentor and Influence: Coach engineers and technical stakeholders on AI development approaches. Share knowledge, best practices, and lessons learned. Drive technical discussions and influence the direction of TextNow's AI strategy.