AI Software Engineer (Backend) - Multiple Levels (Mid-Senior)
About the Company
A rapidly growing AI technology company based in San Francisco, innovating within the logistics industry by automating workflows using agentic AI. Their leadership has extensive experience scaling startups, notably a last-mile logistics company acquired by Shopify. They have raised $25M in Series A to enhance freight brokerage, trucking, and warehousing, embedding AI into Transportation Management Systems to eliminate repetitive tasks such as email correspondence, shipment tracking, and invoicing.
Role Overview
Seeking hands-on engineers experienced in building products from inception, with strong system design skills, passionate about AI-driven applications. Responsibilities include designing, developing, testing, deploying, and maintaining backend infrastructure supporting LLM workflows, voice AI, and enterprise logistics platform integrations.
Key Responsibilities
- Build and scale microservices for AI agents in logistics workflows (proof-of-delivery, track-and-trace, carrier selection)
- Develop "skills" libraries for email, calls, chat interactions
- Integrate with brokers' TMS platforms via REST APIs, message queues (SQS/SNS), and webhooks
- Implement voice-AI pipelines for outbound calls and real-time interactions
- Collaborate in sprint cycles to refine features, performance, and reliability through monitoring and testing
Ideal Candidate Profile
- Technical Skills: 4+ years in backend development (TypeScript, Python, JavaScript)
- Product Experience: Proven ability to ship complete products or features from start to finish
- Systems Design: Expertise in requirements framing, architecture diagramming, trade-off analysis (scalability, failure modes, multi-tenancy), and articulating design decisions
- Cloud Knowledge: Hands-on experience with AWS services such as SQS, SNS, RDS, Lambda, ECS/EKS, and Infrastructure as Code (IaC)
- AI/LLM Skills: Experience deploying RAG pipelines, agentic workflows, voice AI features using tools like OpenAI, Anthropic, Llama, Eleven Labs
- Startup Mindset: Comfortable in scrappy environments, effective communicator across teams, full ownership of deliverables
Compensation & Benefits
- Competitive salary with equity
- Comprehensive health, dental, and vision coverage
- Unlimited PTO and flexible hybrid work schedule
- 401(k) plan
Join the team eager to make a tangible impact on a complex industry by harnessing AI.
To apply, email: ellie.palmer@thirdrepublic.com
Job Highlights
Qualifications
- 4+ years backend development (TypeScript, Python, JavaScript)
- End-to-end product shipping experience
- Strong systems design skills
- AWS cloud proficiency
- AI/LLM integration experience
- Startup mentality
Responsibilities
- Develop and maintain core backend infrastructure for AI workflows
- Scale microservices orchestrating logistics AI agents
- Build 'skills' libraries for communication platforms
- Integrate with TMS via APIs, message queues, webhooks
- Voice AI pipeline development for outbound and real-time user interactions
- Iterate in fast-paced sprint cycles to improve system performance and reliability
Benefits
- Salary + equity
- Health benefits
- Unlimited PTO, flexible hybrid
- 401(k) plan