Senior Full Stack Engineer - Edge

Navan; EE. UU.; Presencial; USD 150.000 - 210.000; Jornada completa

Descripción de la vacante

Navan is seeking a passionate Senior Full-Stack Engineer to lead, design and develop core product features powering our app used by thousands of travelers daily.

You will own AI feature development end-to-end, design scalable backend and frontend systems, and collaborate with product, design, security and SRE teams to deliver high-impact solutions.

The role emphasizes ownership, code quality, and the ability to translate customer needs into reliable, user-friendly experiences.

Formación

• 5+ years of professional backend software engineering experience.
• 2+ years frontend with React/TypeScript.
• Hands-on with AI systems and integrating AI agents.
• Experience with microservices, REST/gRPC, and AWS.

Responsabilidades

• Own end-to-end AI features from design to deployment.
• Design and evolve core backend and frontend.
• Collaborate with product, design, security, and SRE.
• Advocate clean code, reviews, and architecture consistency.
• Help shape long-term product vision.

Conocimientos

Backend 5y+

Frontend 2y+

AI systems

Microservices

Product mindset

Teamwork

Descripción del empleo

About the Role

We believe “It’s all about the user. All of them.” We’re passionate about providing a seamless one-stop experience for business travelers, no matter how they travel, where they stay, or where they’re going. We are looking for a passionate Senior Full-Stack Engineer to lead, design and develop core product features and services that power our app used by thousands of travelers on a daily basis. You will work closely with a set of talented engineers, product managers and designers to identify customer needs and build innovative solutions to solve them.

What You'll Do

• End-to-End AI Feature Ownership: Be the Subject Matter Expert of the domain under ownership. Take full ownership of AI features using multi-agent architectures, from LLM orchestration, tool integration, and schema design to rich React/TypeScript conversational components
• AI Resiliency & Observability: Implement production AI monitoring, evaluation loops (evals), distributed tracing, and safety guardrails to ensure reliable, high-quality conversational responses
• System Design: Design, build and evolve the core backend and frontend of our platform in a scalable and reliable way

• Cross-Functional Collaboration: Partner closely with Product Management, Product Designers, Security, and SRE teams to rapidly iterate on high-impact products

• Engineering Best Practices: Champion clean code principles, write technical design documents, conduct code reviews, and drive architectural consistency.
• Make an impact: Work with the leadership to identify, plan, and execute long-term vision

What We're Looking For

• Backend Experience: At least 5 years of professional software engineering experience building complex, enterprise-grade applications using modern programming languages (e.g., Java, Python, Node.js, or Go)
• Frontend Experience: At least 2 years of experience demonstrating proficiency with modern frontend frameworks (React or Angular), TypeScript, and web platform fundamentals
• AI Systems Expertise: Using AI coding tools natively as part of development lifecycle. Hands-on experience integrating LLMs, AI agents, or natural language interfaces into production systems
• Microservice Architecture: Strong foundation in distributed microservices, REST/gRPC APIs, event streams (Kafka), cloud infrastructure (AWS)
• Product Mindset & Ownership: Strong product mindset, customer-first approach, and a high sense of ownership driving initiatives end-to-end
• Team Player: Team player with strong communication skills and ability to thrive in a fast-paced environment

Navan uses AI-assisted Automated Employment Decision Tool (Metaview) to assist with evaluating resumes against job qualifications for this role. All final decisions are made by human recruiters and hiring managers.

Human oversight: Metaview does not automatically reject candidates or make final hiring decisions. Our recruiters and hiring managers review all outputs and make the final hiring decision regarding every application.

• Your rights: If you prefer to have your application reviewed without AI assistance, you may request a human evaluation by entering your email here. Your decision to do so will not affect how your candidacy is evaluated.

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