Software Developer, Carrier

TextNow is a full MVNO. We run our own converged 4G/5G mobile core in AWS for hundreds of thousands of subscribers, growing toward millions, and we're growing the team that owns and evolves it. AI is built into how this team works: it's how a small team operates, triages and changes a network this size. About the role Build the services between TextNow and our mobile core: subscriber provisioning, plan management, throttling and quota rules, including real-time quota tracking and policy enforcement. The team's developers also own the automated call and data checks and the lab that prove every network change is safe. That work is shared, not one person's job. No telecom background required. This is a chance to get hands-on with a real mobile network. Everyone on the team learns the mobile core and shares on-call for it. You'll ramp up alongside our Mobile Core Engineer. Where you'll work: Waterloo or Toronto area, hybrid. You come into the office about once a week. What you'll do - Carrier services (most of your time): build and run Go services for subscriber provisioning, plans, throttling and quotas, with deep, real-time integrations into the core through vendor APIs. Replace ClickOps with APIs, pipelines and config in git. - Make usage records accurate: check that usage records (CDRs) are complete and match what subscribers actually used, and catch gaps before they show up in billing or carrier costs. - Build our AIOps tooling. AI agents and tools that pull together alarms, logs, metrics and config changes across the core, investigate incidents automatically and propose or run the fix. - Own the checks (shared across the team): automated calls, SMS and data sessions that run before and after every config change and vendor rollout, with an SLO on pass rate. - Build the lab that tests the core (shared): simulators, real devices, test SIMs and test subscribers, and the automation that drives them. - Build and operate with AI: design, code, tests, debugging, triaging failed runs and production issues. It's how a small team owns this much of the platform. Who you are - 3+ years (P2) or 5+ years (P3) building backend services in production - Strong in Go, or strong in another language and keen to work in Go - Microservices on AWS and Kubernetes, CI/CD, Argo CD or similar - You care about integration and end-to-end testing, including on real devices - You build with metrics, logs, traces and SLOs in mind - AI is part of how you build and operate: design, code, tests, debugging and production triage Nice to have - Built LLM agents or tools in production (tool calling, MCP servers, evals), or event correlation and anomaly detection on operational data - Billing, rating, quota or entitlement systems - Distributed event-driven systems - Device automation, device farms or network simulators - Telecom, SIP or networking experience Base Salary Range The expected base salary range for this role is: Canada Intermediate: CAD $113,400 - $162,000 annually Canada Senior: CAD $158,000 – 207,000 annually 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 RRSP matching (Canada) 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. 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