← All jobs in United States

Unlimited leave · Software Engineer

Senior Software Developer - AI

TextNow, Inc. · San Francisco · United States

USD 136k–274k / year Posted Open until 18 Oct 2026

The job, in the employer's words

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. 

 

What You'll Do 

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 

What You Bring 

Technical Experience 

  • 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 

AI & Automation Experience 

  • 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 

Delivery & Collaboration 

  • 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 

Mindset 

  • Curious and pragmatic 
  • 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 Have 

  • 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 

 

 
Base Salary Range
 
The expected base salary range for this role is: $136,300 - $273,900 a year
 
United States (All other areas not listed above): USD $123,900 - $249,000  
United States (NYC, CT, NJ, Seattle, LA, San Diego): USD $136,300 - $273,900  
United States (San Francisco / Bay Area): USD $148,700 - $298,800  
 
 Our salary ranges are determined by role, level, and location. Within the range, individual pay is determined by job-related skills, experience, and relevant education or training. 
 
Our goal is to offer a competitive package that reflects the impact and expertise you bring to the team. 
 
This posting is for a current, active vacancy.
More about TextNow 
 
Our culture 
We’re proud of the culture that we’ve built at TextNow, but one of the most common questions we hear is ‘how do you continue to sustain it as the world and the company continues to change?’ The reality is that we’re only able to keep up because each and every TextNovian contributes to our culture through being involved, by living our values, sharing feedback, embracing change and more!  
 
 Our values 
Customer Obsessed 
We strive to have a deep understanding of our customers. 
 
Do Right By Our People 
We treat each other with fairness, respect, and integrity. 
 
Accept the Challenge 
We adopt a "Yes, We Can" mindset to achieve ambitious goals. 
 
Act Like an Owner 
We treat this company like it's our own... because it is! 
 
Give a Damn 
We are deeply committed and passionate about our work and achieving results. 
 
 
Our benefits and more 
This is a brief overview of the benefits that TextNow offers its employees. More complete details can be found in TextNow’s Benefit Guide and legal plan documents, which are available to employees on or shortly after their start date with TextNow. The benefits listed herein are for illustrative purposes only and may change from time-to-time in TextNow’s sole discretion. 
 
Free phone service 
Strong work life blend  
Employee stock options  
Unlimited vacation  
12 paid holidays per year 
Competitive pay 
Health, dental, and vision benefits 
Short-term & long-term disability 
$750 annual wellness benefit or healthcare spending account 
401(K) matching   
Parental leave for eligible employees 
Learning & Development opportunities
We travel a few times a year for various team events, company-wide off-sites, and more 
More information about our total rewards package will be available during the hiring process. 
 
Dogfooding & Customer Obsession 
At TextNow, every employee gets to actively use our app for calling and texting. Dogfooding helps us experience what customers do, to spot issues early, and drive better design, developer, and user experiences. 
 
Diversity and Inclusion 
Our aim is to make every person who joins TextNow feel like they belong, that they’re valued, and that they’re able to be their authentic selves at work.  
We’re all accountable for creating an inclusive culture and a sense of belonging for one another. By doing this together, we’ll make TextNow better for everyone.  
 
Equal opportunity 
We are an equal opportunity employer and are committed to creating an inclusive environment for all employees. We consider all qualified applicants without regard to race, color, religion, sex, gender identity or expression, sexual orientation, age, disability, or any other protected characteristic. 
 
Applicants who require reasonable accommodation during the hiring process may contact our Talent Team. 
 
AI usage: We use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact our Talent Team.
 
TextNow Candidate Policy 
By submitting an application to TextNow, you agree to the collection, use, and disclosure of your personal information in accordance with the TextNow Candidate Policy 

 

Benefits mentioned

  • This is a brief overview of the benefits that TextNow offers its employees. More complete details can be found in TextNow’s Benefit Guide and legal plan documents, which are available to employees on or shortly after their start date with TextNow. The benefits listed herein are for illustrative purposes only and may change from time-to-time in TextNow’s sole discretion.
  • Free phone service
  • Strong work life blend
  • Employee stock options
  • Unlimited vacation
  • 12 paid holidays per year
  • Competitive pay
  • Health, dental, and vision benefits
  • Short-term & long-term disability
  • $750 annual wellness benefit or healthcare spending account
  • 401(K) matching
  • Parental leave for eligible employees
  • Learning & Development opportunities
  • We travel a few times a year for various team events, company-wide off-sites, and more
  • More information about our total rewards package will be available during the hiring process.

Requirements mentioned

  • Technical Experience
  • 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
  • AI & Automation Experience
  • 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
  • Delivery & Collaboration
  • 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
  • Mindset
  • Curious and pragmatic
  • 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 Have
  • 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

No Mondays shows this listing as the employer published it. Check the details on the employer's site before you apply.

More unlimited leave jobs in United States

Tomorrow.io · Golden · yesterday

Software Engineer

Tomorrow.io’s Space & Sensors team is responsible for the development of unique RF-based sensing systems, such as radar and sonar, from architecture through implementatio…

Unlimited leaveFlexible hoursUSD 120k–135k / year
Twitch · San Francisco · yesterday

Software Engineer I

About Us Twitch is the world’s biggest live streaming service, with global communities built around gaming, entertainment, music, sports, cooking, and more. It is where t…

Unlimited leave
Toro TMS · Remote - USA · yesterday

Senior Software Engineer

About Toro TMS We are Toro TMS , a growth-stage startup working to build the modern operating system for trucking. Our focus is squarely on building the best-in-class, en…

RemoteUnlimited leave
CHAOS Industries · El Segundo · yesterday

Guidance Software Engineer

CHAOS Industries is redefining modern defense with a multi-product portfolio that gives the ultimate advantage—domain dominance. The company's products are powered by Coh…

Unlimited leaveUSD 160k–280k / year
CHAOS Industries · El Segundo · 2 days ago

Senior/Principal Radar Software Engineer

CHAOS Industries is redefining modern defense with omniscient systems purpose-built for today’s realities. Designed and built by top U.S. military veterans and Silicon Va…

Unlimited leaveNo-meetings cultureUSD 140k–240k / year
OneTrust · Atlanta · 2 days ago

Full Stack Web Developer - Marketing

Strength in Trust OneTrust’s mission is to enable innovation through the responsible use of data and AI. We believe that ensuring data is trusted shouldn’t slow teams dow…

Unlimited leave

6,163 live roles · See all →

Other roles at TextNow, Inc.

TextNow, Inc. · San Francisco · 13 days ago

Senior Product Designer

We believe that communication belongs to everyone. TextNow is redefining how people connect by combining simplicity, intelligence, and accessibility. We’re a team of curi…

Unlimited leaveUSD 157k–224k / year
TextNow, Inc. · San Francisco · 16 days ago

Senior Lifecycle Marketing Manager - Retention

We believe communication belongs to everyone. We exist to democratize phone service. TextNow is evolving the way the world connects, and that's because we're made up of p…

Unlimited leaveUSD 103k–148k / year
TextNow, Inc. · San Francisco · 20 days ago

Data Scientist

We believe communication belongs to everyone. We exist to democratize phone service. TextNow is evolving the way the world connects, and that's because we're made up of p…

Unlimited leaveUSD 84k–120k / year
TextNow, Inc. · Waterloo · 20 days ago

Data Scientist

We believe communication belongs to everyone. We exist to democratize phone service. TextNow is evolving the way the world connects, and that's because we're made up of p…

Unlimited leaveCAD 113k–162k / year
TextNow, Inc. · San Francisco · 55 days ago

SecOps Developer

TextNow is on a mission to make communications affordable and accessible for everyone. As a full MVNO operating our own mobile core network over LTE and 5G NSA, we have t…

Unlimited leaveUSD 136k–274k / year
TextNow, Inc. · Waterloo · 55 days ago

SecOps Developer

TextNow is on a mission to make communications affordable and accessible for everyone. As a full MVNO operating our own mobile core network over LTE and 5G NSA, we have t…

Unlimited leaveCAD 113k–162k / year

23 live roles · See all →

Remote share — Software Engineer jobs in United States

80% are remote

1308 of 1,635 jobs we have listed

How long they stay open — Software Engineer jobs in United States

47 days median time open before the listing ended

Based on 118 ended listings

Advertised pay — Software Engineer jobs in United States

USD 198k median advertised pay / year

Middle half: USD 165k – USD 225k

From 1,105 listings that state pay