Senior Fullstack Engineer - AVA

Navan
Tel-Aviv, IL
On-site

Job Description

We are seeking a skilled Fullstack Engineer to join our team and implement advanced AI solutions in our travel and expense management products. The ideal candidate will have strong backend engineering expertise and enthusiasm for working with cutting-edge AI technologies. 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:

  • 5+ years of professional engineering experience.
  • At least 2 years of experience in FE development using Angular, typescript, and React.
  • Strong proficiency in at least one backend programming language (Java etc).
  • Strong sense of ownership demonstrated through shipping production-quality code equipped with testing, monitoring and documentation.
  • Solid understanding of distributed systems, data structures, and algorithms.
  • Ability to thrive in a fast-paced environment.
  • Track record of delivering consumer-facing products at scale.
  • Experience with AI/ML platforms and services (OpenAI, Hugging Face, etc.)
  • Familiarity with LLMs, RAG, or conversational AI.
  • Knowledge of vector databases and embedding technologies.
  • Experience with cloud platforms (AWS, GCP, Azure).
  • Understanding of AI/ML concepts and implementation patterns.

Skills & Requirements

Technical Skills

AngularTypescriptReactBackend programming languageJavaTestingMonitoringDocumentationDistributed systemsData structuresAlgorithmsCloud platformsAwsGcpAzureAi/ml platforms and servicesOpenaiHugging faceLlmsRagConversational aiVector databasesEmbedding technologiesCloud and container technologiesKubernetesGoogle cloud platformTechnical documentationCustomer support teamsMentoringGuidingCoachingVarnish configuration language (vcl)Image/video containers and formatsAdditional cloud/serverless platformsTerraformLeadershipCommunicationProblem-solvingTeamworkCuriosityDriveTravel and expense managementAiLarge language modelsRetrieval-augmented generationConversational interfacesConsumer-facing products

Employment Type

FULL TIME

Level

senior

Posted

4/27/2026

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