What are the responsibilities and job description for the Staff Backend Software Engineer — High‑Scale Messaging & AI Infrastructure position at Emerald Advantage Concepts LLC?
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
Must‑Have Experience
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
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)
- 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
- Base Salary: Competitive
- Equity: Competitive
- Location: San Francisco (on‑site)
- Visa: No sponsorship available at this time
Salary : $100