Senior Backend Engineer - NavanCognition.ai at Navan Labs UK Limited

Tel-Aviv, Tel-Aviv District, Israel -

Full Time

Start Date

Immediate

Expiry Date

06 Jan, 26

Salary

0.0

Posted On

08 Oct, 25

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Backend Engineering, API Development, Microservices, Cloud Platforms, Serverless Technologies, SQL Databases, NoSQL Databases, AI Integration, Operational Excellence, Scalable Systems, Problem Solving, Team Collaboration, Reliability, Performance, Security, Data Fluency

Industry

Software Development

Description

We are seeking a skilled Senior Backend Engineer to join our team and help us build Navan Cognition, a multi-agent AI platform. The ideal candidate will have strong backend engineering expertise and enthusiasm for working with cutting-edge AI technologies. About the Role: You'll be responsible for designing and implementing backend services that integrate AI capabilities including large language models (LLMs), retrieval-augmented generation (RAG), and conversational interfaces into our consumer-facing products. This is an opportunity to expand your expertise into AI while leveraging your strong engineering foundation. What You’ll Do Design and develop scalable, high-performance backend services and APIs Implement integrations with AI platforms and services Work with AI specialists to translate AI capabilities into production-ready features Ensure high reliability, performance, and security of AI-powered systems Collaborate with product and engineering teams to gather requirements and deliver solutions What We’re Looking for: Proven Backend Expertise: 5+ years of professional experience, with a strong foundation in building and maintaining robust backend systems for large-scale consumer or enterprise products. Technical Mastery: Advanced proficiency in at least one modern backend language (TypeScript and Node.js), with hands-on experience developing production-grade APIs and microservices. Experience with Lambda functions is a big plus. Scalable Systems Builder: Demonstrated experience architecting and delivering high-availability services and distributed systems, leveraging patterns for reliability, performance, and security. Cloud-Native Engineering: Deep familiarity with cloud platforms (AWS, GCP, or Azure), including hands-on experience with serverless technologies (e.g., AWS Lambda), infrastructure-as-code, and automated deployment pipelines. Data Fluency: Solid experience with both SQL and NoSQL databases; knowledge of vector databases and embedding/search technologies is a big plus. AI Platform Integration: Experience integrating with modern AI services (OpenAI, Hugging Face, etc.), and enthusiasm for collaborating with ML/AI specialists to bring LLMs, RAG, and conversational AI capabilities into production. SRE / Reliability Focus: Strong understanding of operational excellence–monitoring, observability, incident response, and designing for system resiliency at scale. Results-Oriented Delivery: A track record of shipping consumer-facing features at scale, collaborating closely with both product and engineering teams. Forward-Thinking Problem Solver: Eager to explore new technologies, solving complex problems using both solid engineering fundamentals and innovative approaches.

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Responsibilities

You will design and implement backend services that integrate AI capabilities into consumer-facing products. This role involves collaborating with product and engineering teams to ensure high reliability and performance of AI-powered systems.