Senior Backend Engineer

Nash is building the logistics infrastructure for the internet

Last mile is a $500B industry powering digital commerce but managed largely with self managed API integrations. Nash approaches last mile orchestration with information completeness solutions from checkout, courier management, customer engagement, and post-purchase experience. Doing this enables merchants and customers to capture immense efficiencies, drive better customer experience, reliability and business outcomes.

We are working towards a mission of processing a double digit percentage of every physical last-mile transaction. We achieve this by providing top of the market modules for each step of the customer journey and leveraging the network effects from having more information that allows traditional competitors to collaborate. It’s a big mission, but we are already seeing strong market pull as we are already serving some of the largest retailers in the world like Walmart, 7-Eleven and Woolworths.

Nash was founded in 2021 by Mahmoud Ghulman (2x Founder, MIT) and Aziz Alghunaim (2x Founder, 2x YC, Ex-Palantir, MIT) and has raised funding from top investors, including Y-Combinator and a16z, to build the world’s best logistics infrastructure platform. We are based in SF.

About The Role

As a Senior Backend Engineer , you will play a critical role in designing and building Nash’s backend systems, services, and APIs. You’ll work closely with the CTO, co-founder, and engineering and product team to scale our platform, optimize performance, and develop robust, scalable infrastructure that powers seamless logistics operations. This is a great opportunity to join Nash at an exciting time as we build products across the logistics value chain for enterprises, marketplaces, and SMBs.

Responsibilities

• Design, develop, and maintain scalable, high-performance backend services and APIs.
• Architect and implement efficient data structures and models
• Optimize and improve system performance, scalability, and security.
• Debug, troubleshoot, and resolve backend issues in production environments.
• Collaborate closely with frontend engineers to build seamless API integrations.
• Ensure system reliability by implementing observability, monitoring, and logging best practices.
• Work independently and collaboratively to solve complex technical challenges.
• Advocate for best practices in documentation, testing, and maintainability.

Requirements

• 4+ years of experience building and shipping scalable backend systems.
• Strong Proficiency in Python and backend frameworks.
• Experience designing and working with RESTful APIs and databases (PostgreSQL, AWS RDS).
• Strong understanding of cloud platforms (AWS preferred) and deployment best practices, including managed services (serverless, databases, queues) and CI/CD pipelines.
• Deep knowledge of scalable system design and performance optimization.
• Strong problem-solving skills and the ability to work autonomously in a fast-paced environment.
• Startup experience is a plus, but not required.
• Strong preference for Bay Area - Nash operates a hybrid first product team with an office in San Francisco
• Bonus: Experience with AsyncIO, event-driven architectures, or integration-heavy systems.

What You’ll Love About Us

✅ Early-stage, well-funded startup – directly impact the company and grow your career!
✅ Quarterly broader team on-sites to bond with teammates
✅ Competitive compensation and opportunity for equity
✅ Flexible paid time off
✅ Health, dental, and vision insurance