Senior Software Engineer

Our client is redefining fulfillment, warehousing, and logistics with robot-powered operations built for speed, scale, and accuracy. E-commerce brands depend on them to move inventory, process orders, and deliver same-day shipping across key metro markets. As they launch and scale their platform, you'll be joining a lean, high-velocity team-and influencing everything they build.

Role Overview

We're looking for a highly capable Founding Software Engineer with strong backend skills in Python/Django and a willingness to roll up their sleeves across the stack (including frontend when needed). You'll work closely with the CTO to design, build, and scale our core platform. This is a high-impact role where you'll shape engineering culture, deliver mission-critical systems, and help our business and operations move faster.

Key Responsibilities

• Architect, build, and maintain backend systems and APIs using Python and Django to support core logistics, fulfillment, order management, and operational workflows.
• Own infrastructure on AWS: design scalable, secure, and high-availability services that meet operational SLAs.
• Take ownership of both backend and frontend development as the sole engineer, implementing product features end-to-end and ensuring smooth, high-quality user experiences.
• Work directly with the CTO to define the technical roadmap, deliver features end-to-end, and iterate quickly based on business feedback.
• Build engineering practices and standards: code review frameworks, documentation, observability (logging, monitoring), CI/CD pipelines, and performance optimization.
• Be a key voice in shaping the engineering culture-from hiring decisions to team norms-setting the bar for quality, ownership, and collaboration.
• Support operations/data efforts: engage directly with stakeholders (product, operations, warehouse/logistics teams) to translate real-world fulfillment challenges into scalable software solutions.

Required Skills & Experience

• 5+ years of software engineering experience, with strong backend expertise in Python and Django.
• Proven experience working in production environments on AWS with responsibility for architecture, scalability, and reliability.
• Comfortable working across the stack: though backend is primary, you can contribute effectively to the frontend when needed.
• Experience delivering end-to-end systems-from database to APIs to UI and deployment.
• Excellent problem-solving mindset: you thrive on solving complex infrastructure/data challenges and iterating quickly.
• Strong communication skills and ability to partner with business, product, and ops stakeholders.
• Self-starter and team player: able to work autonomously while collaborating closely with leadership.
• Commitment to onsite work 5 days per week in Concord, CA.

Nice-to-Haves

• Prior experience in logistics, fulfillment, warehousing, or 3PL systems.
• Familiarity with React, TypeScript, or modern frontend frameworks.
• Experience with event-driven architectures, microservices, or real-time data systems.
• Interest in robotics, AI, physical systems, or operational automation.

Why You'll Love It Here

• Be the first engineer helping to build the foundation of a high-growth startup.
• Direct impact: your work will power real fulfillment operations and robotic systems in production.
• Work side-by-side with the CTO and leadership team to shape both product and culture.
• Opportunity for growth: as the company scales, you'll be positioned to lead and grow the engineering organization.