Senior Software Engineer, Autonomous Freight Systems

• Take end-to-end technical ownership of core systems: from schema design and backend APIs to the React surfaces our customers use and drive them to production without needing oversight.

• Proactively identify gaps, inefficiencies, and engineering problems within your domain and lead the effort to resolve them.

• Design and build AI-powered features and integrations, moving beyond "AI familiarity" to hands-on implementation of agent workflows and LLM-backed automation in production.

• Drive technical design for significant features, producing well-reasoned proposals and aligning teammates before writing the first line of code.

• Mentor and support P2 engineers through code review, pairing, and design feedback, raising the quality of the team's output.

• Collaborate closely with product, design, pricing, and operations to translate complex domain problems into elegant, production-ready solutions.

• Build and ship incrementally: this team deploys to production dozens of times per day, and you are comfortable with that pace.

• Ensure reliability and quality by building in metrics, monitoring, and applying learnings from incidents to all systems you own.

• 5+ years of professional software engineering experience with a proven track record of shipping production-grade systems with increasing levels of independence.

• Deep Ownership Instinct: You hold yourself accountable for outcomes, not just outputs. When something breaks, you fix it—and you make sure it doesn't break again.

• Full-Stack Fluency: You can own a feature from the database to the browser. You are opinionated about schema design, API contracts, and frontend architecture, not just one layer.

• AI/LLM Hands-On Experience: You have built software that integrates LLMs into real user workflows—not just proof-of-concepts, but production systems. You understand the practical challenges: latency, reliability, prompt fragility, and cost.

• Agency and Drive: You identify the next most important problem without being asked. You default to action, propose solutions, and bring others along.

• Technical Rigor: A genuine passion for simple, well-tested, well-structured code. You push back on complexity and leave systems better than you found them.

• Communication: You can explain a technical tradeoff clearly to a product manager and to a staff engineer. Your design docs and code reviews are worth reading.

• Proficiency with deploying, monitoring, and maintaining production services on cloud infrastructure (AWS).

• Experience with elements of our tech stack: Java, Spring Boot, Ruby on Rails, React, AWS.

• Familiarity with agentic patterns, RAG, or workflow orchestration (e.g., Temporal).

• Experience in logistics, supply chain, freight technology, or pricing systems.

• A bias for action: when you see a problem, you own the fix.

#LI-onsite

The range displayed on each job posting reflects the minimum and maximum target for new hire base salary for the position in the posting's respective region. Our salary ranges are determined by role, level, and location. Within the range displayed, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education and / or training. Base salary is just one part of our total rewards package at Flexport, which also includes bonus, equity, and comprehensive benefit offerings such as medical, dental, and flexible time off.

The US base salary range for this position (this does not include bonus, equity and benefits): $183,000 — $229,000 USD