Founding Fullstack Engineer @Waniwani
Hexa
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About the role
Founding Fullstack Engineer @ Waniwani
Role Overview
Join Waniwani as a Founding Platform Engineer responsible for architecting and maintaining the multi-tenant infrastructure hosting hundreds of codebases, designing data pipelines, and shipping the core application. You will work directly with the CTO and shape the company's architecture during its critical growth phase.
Key Responsibilities
- Infrastructure Architecture: Architect and maintain infrastructure hosting hundreds of MCP codebases, ensuring tenant isolation and configurability
- Data Pipelines: Design and implement data pipelines that aggregate statistics, analytics, and performance metrics across every deployed instance
- CI/CD & Deployment: Automate CI/CD pipelines, codebase provisioning, health monitoring, and rollback systems to ensure efficient and reliable deployments
- System Design & Scaling: Think in systems, not features—make solutions work at scale for thousands of customers
Required Qualifications
- 5+ years of production TypeScript experience
- Proven experience building and operating systems at real scale
- Deep understanding of multi-tenant architectures with real tenant isolation requirements
- Experience managing codebases that couldn't fit in one repo and data that couldn't fit on one machine
- Experience being on-call and redesigning systems to prevent failures
- Native or bilingual English required
Nice-to-Have Skills
- Experience with multi-tenant SaaS platforms (tenant isolation, provisioning, billing)
- Built or operated big data pipelines (Kafka, ClickHouse, BigQuery, or similar)
- Deep PostgreSQL knowledge: partitioning, query optimization, connection pooling at scale
- Infrastructure-as-code experience (Terraform, Pulumi, or similar)
- Familiarity with MCP (Model Context Protocol) or LLM tool-use ecosystems
- Open-source infrastructure contributions
- Experience with Next.js, Drizzle ORM, or similar modern TypeScript stacks
- Managed deployments across multiple cloud providers or edge networks
- Built internal developer platforms or deployment automation
- French language skills (plus)
Why Join
- Ruthless Execution: Learn to execute surrounded by relentless doers and extremely ambitious teammates
- Ownership: Architect the entire platform infrastructure from the ground up
- Category Creation: Help define a new category rather than join an existing market
- Global Impact: Sell and operate globally from day one across US, Australia, Middle East, Korea, and Europe
- Real Equity: Meaningful ownership at the earliest stage
- Best Training Ground: Ideal preparation for founding your own VC-backed venture
About Hexa
Waniwani is a groundbreaking startup that has launched the first insurance app inside ChatGPT. The company operates as a global insurance platform with offices in Paris, San Francisco, New York, and remote teams across Europe, selling to customers in the US, Australia, Middle East, and Korea.
Scraped 3/28/2026