Senior Software Developer, AI Labs
$136.3k - $273.9kTextnow
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
$149k - $240k
...Who We Are HP IQ is HP’s new AI innovation lab. Combining startup agility with HP’s global... ...HP’s portfolio. Together, we’re developing intuitive, adaptive solutions that spark... ...infrastructure. We are looking for a Senior Software Engineer to design and develop high-performance...SeniorFull timeTemporary workLocal areaFlexible hours- ...About Absentia Labs Absentia Labs is building intelligent systems... ...sit at the intersection of AI, biology, chemistry, and large... ...systems. The Role As a Senior AI/ML Engineer, you will lead... ...throughput data pipelines. ~ Strong software engineering fundamentals:...SeniorFull timeRemote workFlexible hours
$150k - $250k
...We are seeking a Senior AI Engineer to join our cutting-edge AI Research team. You will lead the development of innovative AI solutions including machine learning models, neural networks, and deep learning algorithms that power our next-generation products. Responsibilities...SeniorRemote workHome officeFlexible hours$220k - $260k
...Snorkel At Snorkel, we believe meaningful AI doesn’t start with the model, it starts with... ...as a research project in the Stanford AI Lab, to the generative AI breakthroughs of... ...tooling. Your work will directly accelerate developer velocity, reliability, and product quality...SeniorLocal areaShift work$182k - $230k
...progress. Over the last decade, software has transformed the digital... .... Atoms builds Physical AI- real-world robots for the industries... ...'t just build machines in a lab. We deploy them into real... ...Embedded Firmware Engineer to develop the low-level software that commands...SeniorFull timeInternshipWork at officeFlexible hours- ...About Us Tavus is a research lab pioneering human computing. We’re building AI Humans: a new interface that... ..., individuals, enterprises, and developers can all build AI Humans to connect... .... The Role We're hiring a Senior Software Engineer to be a technical driver...Senior
- ...do Idler builds reinforcement learning environments that teach AI models to code like 0.01% engineers. Our training environments are... ...closed a multimillion-dollar contract with a leading foundation lab (the largest they've issued to date). Demand is outpacing our capacity...SeniorFull timeContract workRelocation package
$160k - $250k
...This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our... ...The next step is to speak to Jack . Senior Software Engineer Salary: $160K – $250K +... ...Description: Series B backed multimodal AI lab Job Description: You will lead...SeniorFull time- ~ Senior Software Engineer (Rust) at Symbolica – San Francisco, US Senior Software Engineer... ..., US About Us Symbolica is an AI research lab pioneering the application of... ...of intelligence while simultaneously developing product‑focused machine learning models...SeniorWork at officeShift work
- ...building a new type of software platform for health systems... ...with cutting‑edge, AI‑powered software designed... ..., nurses, pharmacists, lab technicians, coders,... ...We are looking for a Senior Software Engineer who’s... ...with Elixir at its core. Develop a radically better access...SeniorRemote workFlexible hours3 days per week
- ...dental insurance, gym reimbursement, daily team lunches We are an early stage applied AI lab building coding agents. We’re on a mission to enable one billion humans to become software creators, and we are starting with a focus on data science and analysis use cases....SeniorFull time
$140k - $225k
...Who We Are HP IQ is HP’s new AI innovation lab. Combining startup agility with HP’s global... ...HP’s portfolio. Together, we’re developing intuitive, adaptive solutions that spark... ...work. About The Role As the Senior Software Engineer, Tooling and Development Infrastructure...SeniorFull timeTemporary workLocal areaFlexible hours- ...Senior Software Engineer Juicebox is on a mission to help teams win the talent war. In the age of AI, human ingenuity is the ultimate scarce resource. Recruiting is a zero-sum game... .... Teams at Ramp, Notion, and leading AI labs use Juicebox to power their hiring, alongside...SeniorWork experience placementWork at office
- ...About Nooks.ai : Nooks is an applied AI lab building the Agent Workspace for GTM. We design AI agents that operate across the full sales action... ...- hyperscaler volume for real-time voice. We're hiring senior engineers to push both sides forward. What you'll do...SeniorWork at office3 days per week
$204.4k - $285.6k
...Senior Full Stack Software Engineer San Francisco (Brisbane), CA Vivodyne Creates... ...by testing on large, lab-grown human organ tissues at... ...novel biology, robotics, and AI. We identify and validate new... ...pharmaceutical companies to discover and develop better, safer drugs and...SeniorLocal areaShift work- ...About interface.ai interface.ai is the agentic AI platform for financial... ...everyday Americans. We're not a lab, we're not a demo company, and we'... ...to lead a world where agents, not software, do the work. The Role As a Senior Software Engineer, you're not just...SeniorWork at office
- Senior Software Engineer (Agentic Systems) Join a pioneering research lab as a technical lead focused on building the next generation of conversational AI interfaces. You will architect and deploy production‑grade agentic systems, integrating long‑term memory and complex...Senior
$400k
...Mechanize builds reinforcement learning environments that frontier AI labs use to train and evaluate their coding models. Learn more at... ...tasks but still fail at the complex, judgment-heavy parts of software engineering. We build the environments that expose those failures...Senior- ...is the open platform for evaluating how AI models perform in the real world. Created... ...evaluations. Leading enterprises and AI labs rely on our evaluations to understand real... ...focus. About the Role We're looking for a Senior Software Engineer to own features end-to-end across...SeniorPermanent employmentWork at office
- ...San Francisco, is a leading research accelerator for frontier AI labs and partners with global enterprises to deploy advanced AI systems... ...code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design...SeniorRemote jobFull timeContract workFor contractorsFlexible hours
$150k - $210k
Software Engineer, Senior San Francisco • New York Engineering In office Full-time... ...a pivotal role in designing, developing, and maintaining cutting‑edge generative AI healthcare applications and platforms... ..., or disability status #J-18808-Ljbffr Madrona Venture LabsSeniorFull timeWork at office$200k - $235k
...is the career network for the AI economy. 20 million knowledge... ...0), and every foundational AI lab trust Handshake to power career... ...revenue About The Role As a Senior Forward Deployed Engineer, you... ...Capabilities 5+ years of professional software engineering experience, with...SeniorFull timeFreelanceInternshipWork at officeRemote workFlexible hoursShift work$160k - $195k
As a Senior Software Engineer II, you will: Develop and maintain robust software systems that power core member experiences... ...maintaining production systems AI Experience: Utilizing AI-assisted... ...World Changing Ideas (2020), and B Lab’s Best for the World (2019), among...SeniorTemporary workWork at officeRemote workShift work$150k - $180k
...Job Board. Guild is seeking a Senior Software Engineer to build scalable,... ...You’ll play a pivotal role in developing tools and services that... ...code (AWS CDK/CloudFormation). AI Experience: Experience integrating... ...Changing Ideas (2020), and B Lab’s Best for the World (2019),...SeniorRemote jobContract workTemporary workWork at officeShift work- ...Forbes Best Startup Employers 2022 List. AI is transforming customer support and,... ...scale. What will you be doing? Design, develop, and deploy generative AI applications using... ...? Must Have: 5+ years of experience in software development, with a strong focus on AI and...SeniorFull timeWork at officeImmediate startRemote workWork from homeMonday to FridayFlexible hours
- ...onboard expert contractors who help train AI models in a wide variety of domains. Our... ...effective it’s used by all of the top 5 AI labs. We scaled from $1–500M in revenue run... ...people. About the Role As a Senior Software Engineer at Mercor, you’ll take end-to-end...SeniorFull timeFor contractorsImmediate start
$150 - $175 per hour
...expand our team of expert consultants with 30 Senior Software Engineering Experts for part‑time, fully‑remote work supporting frontier AI research. Projects start at $150-175 USD /... ..., we partner with the world's leading AI labs to push the frontier of AI knowledge in fields...SeniorPart timeFreelanceRemote work- ...whole thing and tries not to miss anything. We're building the AI that finally changes that. Ivo is the contract intelligence platform... ...issues across the stack: infra → backend → frontend Improve developer experience: faster builds, cleaner environments Help define and...SeniorFull timeContract workWork at officeRemote workVisa sponsorshipRelocation packageFlexible hours
$260k - $275k
...SENIOR PRINCIPAL SOFTWARE ENGINEER Saviynt is an identity platform built to power and protect the world at work. With the rise of AI and Agents, the identity perimeter needs to be secured at scale... ...among others. Design and develop secure, scalable, multi-tenant...Senior- ...Overview We are seeking a highly skilled Senior DevOps Engineer to join our dynamic team.... ...teams to implement best practices in software development, deployment, and maintenance,... ...Experience working with large language models or AI/ML tools. Soft Skills: High agency,...SeniorContract workFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Software Developer, AI Labs. Be the first to apply!
- ngo software engineer San Francisco, CA
- software data engineer San Francisco, CA
- graduate software engineer San Francisco, CA
- software development engineer (robotics engineer) San Francisco, CA
- software system engineer San Francisco, CA
- software developer no experience San Francisco, CA
- graduate software developer San Francisco, CA
- software engineer - early career San Francisco, CA
- entry level software engineer remote San Francisco, CA
- software engineer intern San Francisco, CA






