Staff Backend Software Engineer — High‑Scale Messaging & AI Infrastructure
Emeraldadvantageconcepts
San Francisco, CA
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JOB DETAILS
SALARY
LOCATION
San Francisco, CA
POSTED
4 days ago
Why Join
This is a rare opportunity to join one of the fastest‑growing enterprise messaging platforms in the world — a company that went from $0 to $27M revenue in 18 months and is on track for $100M+ ARR this year.
Why top engineers are joining:
Hyper‑growth rocket ship
The platform is scaling at a pace few startups ever reach — and you'll get meaningful equity in a company aiming to become a multi‑billion‑dollar category leader.
Real engineering challenges at massive scale
You'll build backend systems that process billions of SMS messages per month, leveraging Node.js, TypeScript, AWS (SQS, DynamoDB, EC2, ELB), and AI‑driven workflows.
High‑talent density
The company is intentionally building a sub‑50‑person team capable of supporting unicorn‑level revenue. Every engineer is an A‑player with outsized ownership.
Elite backing
Recently raised $10M led by HOF Capital, with strong investor support for aggressive scaling.
About the Role
We're looking for a Staff Backend Engineer who can own major parts of our backend architecture, move fast, and solve complex distributed systems problems at scale.
You'll work directly with the CEO and a small, senior engineering team to build the infrastructure powering the next generation of SMS and AI‑driven communication.
What You'll Do
Architect, build, and own backend systems that handle billions of messages monthly
Design and optimize distributed systems using Node.js, TypeScript, and AWS
Ship quickly and iterate fast in a high‑velocity startup environment
Solve real scalability challenges across queuing, throughput, reliability, and latency
Collaborate closely with product and engineering leadership to shape the roadmap
Contribute to AI‑powered workflows and data intelligence features
Maintain extremely high code quality while moving at startup speed
Who You Are
Must‑Have Experience
4+ years backend engineering experience
Deep expertise in Node.js and TypeScript
Strong understanding of AWS services, especially SQS
Proven experience building high‑scale, high‑throughput systems
01 startup experience — you've built from scratch, not just maintained
Rapid career trajectory with clear growth and impact
Eligible to work in the US or Canada (no visa sponsorship)
Nice‑to‑Haves
Frontend experience with React.js
Familiarity with AI/LLM workflows (e.g., ChatGPT, embeddings, agents)
Experience at top engineering orgs or as a founder/early engineer
Side projects, open‑source contributions, or technical writing