Senior Software Engineer

About the role

Fern, a Postman company, is actively seeking a seasoned Senior Software Engineer to spearhead the development of API infrastructure and next-generation developer tools for a global audience. You will integrate with a high-performing team dedicated to constructing systems that power AI agents and deliver robust API experiences for industry-leading organizations. In this capacity, you will own the design and execution of critical infrastructure components that define the future of API development. Your work will directly influence how developers interact with complex systems at scale, ensuring that reliability and performance remain uncompromised even under extreme load. This role requires a proactive mindset to solve ambiguous, long-term architectural challenges while bridging the gap between intricate backend systems and intuitive user experiences. You will translate high-level product goals into concrete technical specifications in collaboration with cross-functional partners, driving tangible outcomes from concept to production.

What you'll do

• Scale AI infrastructure using Vercel, AWS, and Turbopuffer to maintain reliability and performance under heavy load. You will architect and optimize the systems that power intelligent API interactions, ensuring they perform consistently at scale.
• Engage directly with technical teams at organizations like Nvidia, Square, and Twilio to resolve production issues and refine API functionality. You will act as a key technical partner, diagnosing and solving complex issues that impact real-world API usage.
• Coordinate with frontend engineers and product designers to create polished user interfaces. You will work hand-in-hand with design and frontend teams to ensure the developer experience is seamless and intuitive.
• Utilize TypeScript and Next.js to ship high-quality product improvements. You will leverage modern frameworks and languages to build responsive and efficient user-facing features.
• Architect resilient backend services that handle millions of requests with minimal latency. You will design the core infrastructure that ensures speed and stability for our platform.
• Implement automated testing strategies to ensure the stability of new features before they reach production. You will establish rigorous quality gates to maintain a high standard of software reliability.
• Analyze system metrics to identify bottlenecks and drive optimizations for core infrastructure. You will use data to guide performance improvements and capacity planning.
• Partner with security specialists to enforce best practices and safeguard sensitive data. You will contribute to a security-first mindset across the engineering organization.
• Mentor junior engineers by providing code reviews and technical guidance. You will help elevate the entire team through knowledge sharing and constructive feedback.
• Explore emerging technologies to evaluate their potential integration into existing workflows. You will stay ahead of the curve by assessing new tools that can improve our development processes.
• Streamline deployment processes to reduce downtime and improve release velocity. You will optimize the CI/CD pipeline to enable faster and more reliable software delivery.
• Document system architecture to ensure clarity for current and future team members. You will create the technical artifacts necessary for long-term maintainability.
• Collaborate with customer success teams to gather feedback and inform product decisions. You will connect with customers to understand their needs and translate them into technical requirements.
• Maintain a deep understanding of API standards to ensure compliance and interoperability. You will ensure our infrastructure adheres to industry best practices and protocols.

Requirements

• Minimum of 5 years of professional software engineering experience. You must have a proven track record of delivering complex software systems.
• Strong commitment to the craft of developer experience and open-source contribution. You should demonstrate a passion for building tools that empower other developers.
• Ability to communicate clearly and solve complex technical challenges alongside customers. You will work directly with stakeholders to understand and address their needs.
• Base salary range of $200,000 to $250,000 plus equity. Your compensation will include a competitive equity package reflecting your impact.
• Demonstrated expertise in building and maintaining scalable web applications. You have a history of creating systems that grow efficiently.
• Proficiency in modern JavaScript runtime environments and package management. You are experienced in the ecosystem surrounding Node.js and related tools.
• Experience working with cloud providers and infrastructure as code methodologies. You are comfortable managing infrastructure through code.
• Willingness to adhere to the company's code of conduct and quality standards. You understand the importance of professional engineering practices.
• Comfort working in an agile environment with frequent iterations and retrospectives. You thrive in a fast-paced, collaborative setting.
• Passion for writing clean, maintainable, and well-tested code. You prioritize code quality and long-term sustainability.

Nice to have

• Practical experience building applications with TypeScript. Hands-on familiarity with the type-safe superset of JavaScript is highly valued.

Skills & tools

• TypeScript
• Next.js
• Vercel
• AWS
• Turbopuffer

Practical notes

• Compensation includes a competitive equity package.
• Benefits include full medical coverage, flexible PTO, wellness reimbursement, a monthly lunch stipend, and donation matching.
• This position requires 5 days per week of in-office attendance.
• Postman is an Equal Employment Opportunity and Affirmative Action Employer.