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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer - **Company:** TIN LLC - **Location:** Seattle, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Amazon Web Services, Data Mining, Distributed Systems, PostgreSQL, Load Testing, Datadog, Grafana, Backend, Build Tools, Kamailio, Terraform - **Published:** September 4, 2026 - **Apply:** https://startup.jobs/senior-software-engineer-reliability-tin-can-9728935 ## About the Role * 5+ years building and operating production backend or distributed systems where downtime is something real people notice * Real depth in AWS and infrastructure as code (we use Terraform), and a bias toward reproducibility * You've owned reliability as a discipline, not a fire drill - SLOs, meaningful alerting, load testing, and incident review that changes what gets built next * Comfortable in real-time and telephony systems, or genuinely eager to get there; SIP, RTP, and media behavior are the substrate here * Fluency using AI as a multiplier across diagnosis, analysis, and testing * Hands-on and scrappy; you'd rather run the load test or read the SIP trace yourself than wait on someone else * A clear communicator who writes things down * A collaborative, low-ego approach - everyone here sweeps the floor * Bonus: production FreeSWITCH, Kamailio, or carrier SIP trunking; load-testing a system through a seasonal peak; Postgres at scale; operating a consumer hardware fleet; or observability tooling like Grafana ## Description A Tin Can has exactly one job. A kid picks it up, and the person they want to talk to is on the other end - clear, and right away, every time. When that doesn't happen we haven't shipped a bug, we've broken the promise a family bought us for. There is no feature we could ship this year that matters more than getting this right., * Make change management real for customer-visible behavior, so a migration that changes what a family hears is announced rather than discovered * Own the pipelines that carry an application or call-path change into production: reviewed, tested, and reversible * Own the staging tier as a real gate, where a change proves itself against production-like traffic before a kid's phone sees it * Load-test the activation chain ahead of our holiday peak, so the busiest morning of the year is one we've already rehearsed * Build the product-outcome layer of our observability - the funnels and SLOs showing whether a call, voicemail, or activation actually succeeded - alongside the infrastructure metrics our SRE owns * Drive incidents to real root cause across the stack, from SIP signaling and media to Lambda services and Postgres * Own the incident-review practice: every class of failure gets an owner, a runbook, and a test that would catch it next time * Partner with our reliability PM to turn diagnosis into a backlog engineering can actually execute against, * We're building tech that protects childhood: We're on a quest to give kids a more analog childhood - one with real conversations, real connection, and way less screen time. No doomscrolling, data mining, or dopamine traps - just a simpler, better way for kids to stay in touch. This is a rare opportunity to build something that truly matters. * You'll own the promise the whole company is judged on: Reliability is our top priority this year, and this is the engineering role that owns it. You'll set the technical direction for how a Tin Can stays dependable as we scale. * Small, high-trust team: Every company says "team," but at Tin Can it means something different. We're a small, mission-driven group that genuinely has each other's backs - professionally and personally. You'll be joining a tight-knit crew where your ideas and instincts matter from day one. * Room to explore, not just execute: You'll have the space to explore new ideas, challenge assumptions, and build systems that reflect our values of trust, simplicity, and care. ## Related Videos - [TiDB, One Layer at a Time: How Distributed SQL Became an Agentic AI Backbone](https://www.wearedevelopers.com/videos/100117-tidb-one-layer-at-a-time-how-distributed-sql-became-an-agentic-ai-backbone) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [5 steps for running a Kubernetes environment at scale](https://www.wearedevelopers.com/videos/88-5-steps-for-running-a-kubernetes-environment-at-scale) - [Debugging in the Dark](https://www.wearedevelopers.com/videos/1658-debugging-in-the-dark) - [Software Engineering Social Connection: Yubo’s lean approach to scaling an 80M-user infrastructure](https://www.wearedevelopers.com/videos/1583-software-engineering-social-connection-yubo-s-lean-approach-to-scaling-an-80m-user-infrastructure) - [Tracking vehicles at scale](https://www.wearedevelopers.com/videos/1999-tracking-vehicles-at-scale) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 137 - AI'm not sure about this](https://www.wearedevelopers.com/magazine/485-dev-digest-137-ai-m-not-sure-about-this) - [Dev Digest 139 - Soft and hard queries](https://www.wearedevelopers.com/magazine/487-dev-digest-139-soft-and-hard-queries) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline)