Founding Engineer

Weekday AI

San Francisco, California, United States permanent

Posted: January 14, 2026

Required Skills

Job Description

This role is for one of the Weekday's clients

Salary range: Rs ₹150 - 180 LPA

Min Experience: 1 years

Location: San Francisco Bay Area

JobType: full-time

We’re looking for a highly motivated Founding Engineer to join us at the ground floor and help build our product from zero to one. This is a hands-on role for someone who thrives in early-stage environments, enjoys solving ambiguous problems, and wants real ownership over technology and outcomes.

As a Founding Engineer, you’ll work closely with the founders to design, build, and scale the core backend systems while contributing across the stack where needed. You will play a key role in shaping the product architecture, engineering culture, and technical roadmap.

Requirements:
What You’ll Do

• Design, build, and scale robust backend systems using Python
• Develop APIs and services that are secure, performant, and scalable
• Work with TypeScript to build integrations, internal tools, and full-stack features when required
• Own core product features end-to-end — from ideation to production
• Make architectural decisions around data models, services, and infrastructure
• Collaborate closely with founders, product, and design to rapidly ship features
• Write clean, maintainable, and well-tested code
• Debug production issues and continuously improve system reliability
• Set early engineering best practices around code quality, testing, and documentation

What We’re Looking For

• 1–5 years of experience building backend or full-stack systems
• Strong proficiency in Python for backend development
• Solid experience with TypeScript (Node.js, APIs, or full-stack applications)
• Deep understanding of backend fundamentals: APIs, databases, authentication, and system design
• Experience with relational and/or NoSQL databases
• Familiarity with RESTful APIs and modern backend frameworks
• Comfortable working in fast-paced, ambiguous startup environments
• Strong problem-solving skills and a builder’s mindset
• Ability to take ownership and execute with minimal supervision

Nice to Have

• Experience working in early-stage startups
• Exposure to cloud platforms (AWS, GCP, or similar)
• Experience setting up CI/CD, deployment pipelines, or basic DevOps
• Interest in product thinking and user-centric development

Why Join Us

• Work directly with founders and influence key product decisions
• Build something meaningful from the ground up
• High ownership, autonomy, and impact
• Opportunity to grow into a senior or leadership role as the company scales
• Competitive compensation with meaningful upside

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