Senior Software Engineer - Fern

Postman Fern; New York (NY); On-site; USD 200,000 - 250,000; Full time

Benefits offered by this job

Full medical coverage

Flexible PTO

Wellness reimbursement

Monthly lunch stipend

Donation-matching program

Flexible schedule

Team-building events

Job summary

Postman Fern is seeking a Senior Software Engineer to build APIs, scale AI infrastructure, and design developer experiences reaching millions. You’ll work on AI systems deployed on AWS and Vercel, ensuring performance, reliability, and security under real-world load.

You will collaborate with product designers and frontend engineers using TypeScript and Next.js, debug production edge cases, and shape APIs based on customer feedback while delivering improvements quickly.

Qualifications

• 5+ years of professional software engineering experience.
• Bonus: Experience building with TypeScript.
• Strong written and verbal communication to solve technical problems with customers.

Responsibilities

• Build APIs and scale AI infrastructure for millions of users.
• Debug production edge cases and ship improvements quickly.
• Collaborate with product designers and frontend engineers using TypeScript and Next.js to define polished interfaces.

Skills

Communication

5+ years experience

Tools

TypeScript

Next.js

AWS

Vercel

Job description

Who Are We?

Postman is the world’s leading API platform, used by more than 45 million+ developers and 500,000 organizations, including 98% of the Fortune 500. Postman is helping developers and professionals across the globe build the API-first world by simplifying each step of the API lifecycle and streamlining collaboration—enabling users to create better APIs, faster. The company is headquartered in San Francisco and has offices in Boston, New York, Austin, Tokyo, London, and Bangalore - where Postman was founded. Postman is privately held, with funding from Battery Ventures, BOND, Coatue, CRV, Insight Partners, and Nexus Venture Partners. Learn more at postman.com or connect with Postman on X via @getpostman. P.S: We highly recommend reading The "API-First World" graphic novel to understand the bigger picture and our vision at Postman.

About Fern, a Postman Company

Fern helps software companies build a world-class API experience. Our customers include industry leaders like Nvidia, Square, and Twilio, as well as fast-growing AI companies like ElevenLabs and OpenRouter. In the next year, the majority of API integrations will be implemented by AI agents. Agents don’t read marketing pages. They need strongly typed schemas, structured endpoints, deterministic contracts, and documentation that can be fed into a context window. Our team is small and talent-dense. We’re a team of builders from Google, Palantir, Amazon, and Uber, working together in New York City.

About the Role

As a Senior Software Engineer at Fern, you’ll build APIs, scale AI infrastructure, and design developer experiences that reach millions of people. Scale infrastructure to keep up with growth: Work on AI systems deployed on Vercel, AWS, and Turbopuffer that must be performant, reliable, and secure under real-world load. Stay close to customers: We work directly with API teams at companies like Nvidia, Twilio, and Square. You’ll debug real production edge cases, shape APIs based on customer feedback, and ship improvements quickly. Collaborate across the stack: Partner closely with product designers and frontend engineers working in TypeScript and Next.js to define polished interfaces and slick user experiences.

What We’re Looking For

You have 5+ years of professional software engineering experience. We’re building open source and we care deeply about taste — we’re looking for builders that know developer experience is a craft. Strong written and verbal communication skills to solve technical problems with customers.

Bonus: Experience building with TypeScript.

The reasonably estimated base salary for this role ranges from $200,000.00 to $250,000.00, plus a competitive equity package. Actual compensation is based on the candidate's skills, qualifications, and experience.

What Else?

In addition to Postman's pay-on-performance philosophy, and a flexible schedule working with a fun, collaborative team, Postman offers a comprehensive set of benefits, including full medical coverage, flexible PTO, wellness reimbursement, and a monthly lunch stipend. Along with that, our wellness programs will help you stay in the best of your physical and mental health. Our frequent and fascinating team-building events will keep you connected, while our donation-matching program can support the causes you care about. We’re building a long-term company with an inclusive culture where everyone can be the best version of themselves. At Postman we value in person collaboration. We are in office 5 days a week for all roles based out of our hubs in San Francisco Bay Area, Boston, Austin, New York City, Tokyo and London. For roles based in Bangalore, employees currently work in the office three days a week and will transition to five days per week by the end of the year. We were thoughtful in our approach which is based on collaboration and grounded in feedback from our workforce, leadership team, and peers. The benefits of our in office model will be shared knowledge, brainstorming sessions, communication, and building trust in-person that cannot be replicated via zoom.

Our Values

At Postman, we create with the same curiosity that we see in our users. We value transparency and honest communication about not only successes, but also failures. In our work, we focus on specific goals that add up to a larger vision. Our inclusive work culture ensures that everyone is valued equally as important pieces of our final product. We are dedicated to delivering the best products we can.

Equal Opportunity

Postman is an Equal Employment Opportunity and Aff… Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender perception or identity, national origin, age, marital status, protected veteran status, or disability status.

• full medical coverage
• flexible PTO
• wellness reimbursement
• monthly lunch stipend
• wellness programs
• team-building events
• donation-matching program
• flexible schedule

Postman powers API development for 40 million+ developers and 500,000+ organizations worldwide.