Senior Full Stack Engineer

Cross Border Talents; San Francisco (CA); On-site; USD 160,000 - 230,000; Full time

Job summary

Cross Border Talents is hiring a Senior Full Stack Engineer in San Francisco, CA. You will own and build high-growth AI features, shipping end-to-end capabilities on a modern TypeScript/React/Node.js stack.

You will work closely with product and engineering teams, demo to customers, and help establish engineering best practices as the team scales toward 30+ members by year-end. On-site five days per week in San Francisco.

Qualifications

• 4–8 years of experience in full-stack engineering.
• Senior Software Engineer or Software Engineer approaching end of mid-career.
• Nice to have: Experience deploying LLM-based/agentic solutions in production.
• Nice to have: Big tech to YC startup (Seed to Series A) pipeline.
• Strong academic performance, GPA 3.7+ preferred; IIT/JEE ranking is a strong positive signal.

Responsibilities

• Own and build conversational, real-time AI agents for insurance operations, end-to-end
• Ship net-new features rapidly across a modern TypeScript/React/Node.js stack
• Work cross-functionally with product and forward-deployed engineering teams, and selectively join customer meetings to demo features you've built
• Shape technical decisions on architecture, tooling, and infrastructure as an early engineer at a company scaling fast
• Help establish engineering best practices and mentor newer engineers as the team grows toward 30 people by year-end

Skills

Full-stack engineering

TypeScript/React/Node.js

Customer-facing

Education

GPA 3.7+ preferred; IIT/JEE ranking

Tools

PostgreSQL

AWS

Job description

Senior Full Stack Engineer

Salary: $160K - $230K

Equity: 0.2-0.6%

On-site work policy: 5 days in-office by Ferry Building, San Francisco

Visa Sponsorship Details: Open to visa transfers (e.g. OPT, H1B transfers)

Hiring Count: Looking to hire 1 - 2 candidates for this role

Location: San Francisco, California, United States

About this role

We are looking for a Senior Full Stack Engineer with 4-8 years of experience to own and build net-new product areas at a high-growth AI startup transforming insurance operations. You'll join a 15-person team (10 in eng/prod) that's grown from $0 to $3M in revenue in just 15 months, building AI agents that handle complex insurance workflows across voice, chat, email, and SMS. This is a high-ownership role where you'll be building from scratch 80% of the time, specifically driving the company's new browser automation and document intelligence platform. You'll report directly to the CEO and work alongside a tight-knit, ambitious team in San Francisco.

Will you be doing?

• Own and build conversational, real-time AI agents for insurance operations, end-to-end
• Ship net-new features rapidly (first PR to production in week one) across a modern TypeScript/React/Node.js stack
• Work cross-functionally with product and forward-deployed engineering teams, and selectively join customer meetings to demo features you've built
• Shape technical decisions on architecture, tooling, and infrastructure as an early engineer at a company scaling fast
• Help establish engineering best practices and mentor newer engineers as the team grows toward 30 people by year-end

Will you be doing?

• Own and build conversational, real-time AI agents for insurance operations, end-to-end
• Ship net-new features rapidly (first PR to production in week one) across a modern TypeScript/React/Node.js stack
• Work cross-functionally with product and forward-deployed engineering teams, and selectively join customer meetings to demo features you've built
• Shape technical decisions on architecture, tooling, and infrastructure as an early engineer at a company scaling fast
• Help establish engineering best practices and mentor newer engineers as the team grows toward 30 people by year-end

Requirements

Role Requirements

Seniority

Requirement: 4 - 8 years of experience in full-stack engineering, shipping customer-facing products end-to-end

Work experience

Requirment: Senior Software Engineer or Software Engineer approaching end of mid-career, already performing at a senior level and looking for more end-to-end ownership

Nice to have: Experience deploying LLM-based/agentic solutions in production

Nice to have: Big tech to YC startup (Seed to Series A) pipeline

Education

Requirmnet: Strong academic performance (GPA 3.7+ preferred; IIT/JEE ranking is a strong positive signal)

Hard skills

Must have: Proficiency in a modern language with willingness to work in TypeScript/React/Node.js

Nice to have: Experience with PostgreSQL and cloud infrastructure (AWS)

Soft skills

Nice to have: Customer-facing comfort; willing to demo and join client calls

Miscellaneous

Must have: Must work on-site in San Francisco 5 days/week

Must have: Been promoted multiple times at previous company and looking for new challenge