Senior Software Engineer, Reliability
About The Position
Tin Can is building a safer, simpler way for kids to connect — without smartphones. We’re creating screen-free, delightful devices and services that let families call the people who matter most, free from the noise of today’s digital world. We’re building a bold, authentic, nostalgic, and kinda quirky brand that resonates with folks who want something simpler & better for their kids than the tech-infused lives we’re currently living (and who have a sense of humor about it). As we gear up to scale to thousands of families, we’re ready to bring on an engineer to help make it happen.
Requirements
- 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
Nice To Haves
- production FreeSWITCH, Kamailio, or carrier SIP trunking
- load-testing a system through a seasonal peak
- Postgres at scale
- operating a consumer hardware fleet
- observability tooling like Grafana
Responsibilities
- Own the reliability outcome families actually experience — did the call connect, did it sound right, was the phone reachable — and the number we hold ourselves to
- 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
Benefits
- We’re building tech that protects childhood
- You’ll own the promise the whole company is judged on
- Small, high-trust team
- Room to explore, not just execute
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
