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Senior Software Engineer - Core AI jobs in United States
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Navan · 11 hours ago

Senior Software Engineer - Core AI

Navan is seeking a Senior Software Engineer to build their Composable AI Microservice Architecture, which involves developing intelligent, production-grade AI agents. The role focuses on designing specialized AI microservices, optimizing service quality, and collaborating with architecture teams to ensure scalable deployment.
TravelFinancePaymentsSoftwareBusiness TravelFinancial Services
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H1B Sponsor Likelynote

Responsibilities

Develop specialized AI microservices. Design and build the core logic for task-specific AI agents using AWS Bedrock Agents, Google ADK, or Anthropic Claude SDK, owning the full implementation from data serialization, memory to agentic tool-use, MCP (Model Context Protocol) gateway integrations, and multi-step reasoning
Drive optimization-first development. Improve service quality through a rigorous hierarchy: context engineering and skills scripting for optimal knowledge delivery, logic and tooling design for real-world interaction, and prompt and behavioral tuning for specific, repeatable behaviors
Build for the fleet. Ensure every service you build is "Core AI Ready" by fully integrating with observability and evals frameworks like LangSmith, Braintrust for agent tracing, drift detection, versioning, and success metrics
Lead systemic experimentation. Design and run controlled experiments across different models and datasets using evals frameworks and benchmarking tools to prove that your improvements are attributable and reproducible
Collaborate on architecture. Work closely with AI Ops to ensure your services are deployable at scale using autonomous agent runtimes, agent sandboxing (E2B, AWS Lambda), and AWS AgentCore infrastructure, and with the Platform team to deliver "Demo to Prod" leverage

Qualification

AI microservices developmentData engineeringAgentic systems specializationExperimentationEvaluationAWS services proficiencyHigh-velocity shippingCollaboration skills

Required

Develop specialized AI microservices. Design and build the core logic for task-specific AI agents using AWS Bedrock Agents, Google ADK, or Anthropic Claude SDK, owning the full implementation from data serialization, memory to agentic tool-use, MCP (Model Context Protocol) gateway integrations, and multi-step reasoning
Drive optimization-first development. Improve service quality through a rigorous hierarchy: context engineering and skills scripting for optimal knowledge delivery, logic and tooling design for real-world interaction, and prompt and behavioral tuning for specific, repeatable behaviors
Build for the fleet. Ensure every service you build is 'Core AI Ready' by fully integrating with observability and evals frameworks like LangSmith, Braintrust for agent tracing, drift detection, versioning, and success metrics
Lead systemic experimentation. Design and run controlled experiments across different models and datasets using evals frameworks and benchmarking tools to prove that your improvements are attributable and reproducible
Collaborate on architecture. Work closely with AI Ops to ensure your services are deployable at scale using autonomous agent runtimes, agent sandboxing (E2B, AWS Lambda), and AWS AgentCore infrastructure, and with the Platform team to deliver 'Demo to Prod' leverage
Product-minded AI building experience. You are a Senior or Staff-level engineer who loves building features that people actually use, understanding that valuable AI solves specific human workflow problems
Data-first engineering mindset. You are skilled at data engineering and serialization, knowing that a well-formatted context and the right data are more valuable than endless prompt tweaking
Agentic systems specialization. You have experience building agentic flows using frameworks like AWS Agent Core, Google Vertex ADK, or custom autonomous agent runtimes, and know how to balance agency with precision
Experimentation and evaluation expertise. You trust benchmarks over intuition and are comfortable building observability pipelines and writing custom evals to measure agent performance, reliability, and success metrics
High-velocity shipping ability. You thrive in production environments where success is measured by the number of high-leverage human workflows you successfully augment, not research papers published

Company

Navan provides travel, expense, and corporate card management to automate manual processes and drive spend visibility.

H1B Sponsorship

Navan has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (45)
2024 (22)
2023 (38)

Funding

Current Stage
Public Company
Total Funding
$2.25B
Key Investors
Goldman Sachs Bank USACoatueGreenoaks
2025-10-30IPO
2025-04-07Convertible Note
2022-12-08Debt Financing· $400M

Leadership Team

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Ariel Cohen
CEO and Co-Founder
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Carlos Avelar
Account Executive
Company data provided by crunchbase