NavanSoftware Engineer

Updated Aug 11, 2026 · Reviewed by the Dataford team

Navan Software Engineer interview questions & guide 2026

Every question Navan interviewers actually ask, the frameworks that win the room, and the language hiring managers respond to.

7 rounds · ≈ 4-6 weeks

Initial Screening Call

Technical Screening

Full Evaluation Loop

Coding Interview

Low-Level Design

High-Level System Design

Behavioral Interview

1. What is a Software Engineer at Navan?

As a Software Engineer at Navan, you will sit at the intersection of enterprise travel management, fintech, and real-time expense processing. Navan operates an integrated corporate platform that connects business travelers with global distribution systems, hotel inventories, flight aggregators, and corporate card systems. Every booking, policy evaluation, and financial transaction relies on high-availability backend microservices, intuitive frontend applications, and ultra-low-latency data processing pipelines.

Your core responsibility will be architecting, building, and maintaining production-grade applications that handle massive transaction volumes. Whether you are engineering distributed flight aggregation engines, implementing fraud risk models, or building seamless user interfaces, your work directly influences the experience of millions of business travelers and corporate administrators worldwide. Software engineers at Navan drive both greenfield feature engineering and the critical refactoring of core systems to sustain high growth and enterprise reliability.

Because Navan handles complex real-world workflows—such as dynamic travel policy checks, inventory reconciliation, and immediate corporate card authorizations—the role demands strong fundamentals in data structures, concurrent programming, object-oriented design, and distributed systems architecture. Joining Navan as a Software Engineer offers you the opportunity to solve complex, high-scale engineering problems within a fast-moving fintech and travel technology ecosystem.

2. Common Interview Questions

Interview candidates encounter a mix of algorithmic coding, low-level design (LLD), high-level system design (HLD), and behavioral discussions. The questions below reflect real interview patterns reported by candidates for Software Engineer roles across various teams and levels at Navan.

Coding & Data Structures

These questions evaluate your algorithmic thinking, memory management, handling of edge cases, and comfort with language-specific primitives.

Implement a thread-safe Publisher-Subscriber (Pub/Sub) class supporting message broadcasting and asynchronous delivery.
Implement a class conforming to a SetAllable interface that supports get, set, and setAll operations in O(1) time complexity.

Given a 2D matrix representing a grid, calculate the total number of valid paths from position (0,0) to (N,N) moving only right and down.
Given an array of integers, find the first number that appears fewer than two times in linear time.
Implement a Least Recently Used (LRU) Cache system with efficient lookup, insertion, and eviction policies.

Low-Level Design (LLD)

LLD rounds assess your ability to translate ambiguous business requirements into clean, maintainable, object-oriented, or modular code.

Design a Flight Aggregation System that consolidates live flight offers from multiple third-party vendor APIs, handles response normalization, and manages fallback mechanisms.
Design an in-memory Message Broker system in Java or Go capable of queueing, processing, and delivering ordered messages to multiple consumers.
Design a scalable rate-limiting library or middleware component to protect core API routes from traffic spikes.
Design a component to manage user permissions and dynamic travel policy rules for enterprise accounts.

High-Level System Design (HLD)

System design rounds test your ability to build distributed, scalable, and resilient cloud architectures aligned with Navan's core product domains.

Architect a global travel booking engine similar to Google Flights, accounting for multi-vendor inventory aggregation, low-latency search results, dynamic pricing, and multi-region caching.
Design a real-time Fraud Risk Platform for corporate card transactions, focusing on high-throughput streaming analysis, rule evaluation engines, and fast storage.
Design a notification delivery pipeline capable of sending push, email, and SMS alerts to travelers based on real-time flight status changes.
Architect an enterprise expense approval workflow system that handles automated card receipts, image processing pipelines, and manual manager escalation queues.

Behavioral & Engineering Execution

Behavioral and team-fit questions focus on past projects, cross-functional collaboration, technical trade-offs, and your approach to system reliability.

Why do you want to work at Navan, and what interests you about our engineering challenges in travel and expense management?
Walk me through a recent technical project you led. What architectural decisions were you responsible for, and what trade-offs did you make?
Describe a time you had to diagnose and resolve a severe production outage or performance bottleneck under time pressure.
How do you balance shipping new features quickly against refactoring legacy codebase technical debt?
Tell me about a scenario where you disagreed with a peer or team lead on technical architecture and how you reached alignment.

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03 · Question bank

The questions most likely to come up

Sorted by relevance to this company

Two Sum with TargetEasy

Use a hash map to find two array elements that sum to a target in O(n) time.

Hash TablesArraysStrings

Prioritize Conflicting Engineering DeadlinesMedium

Explain how you would prioritize competing engineering deadlines when stakeholders, business impact, and delivery risk are all in tension.

Trade-offsRoadmappingRisk Assessment

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3. Getting Ready for Your Interviews

Preparing for an engineering interview at Navan requires a balanced focus on programmatic fluency, solid software architecture principles, and clear communication. You are evaluated not just on reaching a working solution, but on how clean, maintainable, and well-structured your code is.

Technical & Domain Proficiency – Demonstrates your mastery of foundational computer science concepts, object-oriented design, dynamic programming, and concurrent processing. Interviewers look for language-level mastery—particularly in Java, Go, or TypeScript/JavaScript depending on the specific track—as well as your ability to write production-ready code with proper error handling.

System Architecture & Low-Level Design – Measures your ability to translate domain requirements into clean class structures, interfaces, and microservice architectures. At Navan, candidates are evaluated on how effectively they handle system modularity, domain modeling (such as flight/hotel search engines), caching strategies, database schema design, and asynchronous message queues.

Problem-Solving & Algorithmic Rigor – Evaluates how systematically you analyze complex problem statements, choose optimal data structures, calculate time and space complexity, and refine initial solutions. You must articulate your thought process aloud, discuss trade-offs proactively, and handle edge cases cleanly.

Execution & Culture Fit – Assesses your communication efficiency, accountability, ability to navigate legacy refactoring challenges, and alignment with fast-moving, high-ownership team dynamics. Navan values engineers who take end-to-end responsibility for their services, communicate trade-offs clearly, and remain resilient when solving complex production issues.

4. Interview Process Overview

The hiring process for a Software Engineer at Navan is structured to thoroughly evaluate your hands-on coding ability, system design acumen, and technical communication. The process typically takes between 2 to 4 weeks from initial contact to offer, depending on candidate and interviewer availability.

The evaluation process usually begins with an initial screening call with a talent acquisition partner, followed by a technical screening phase. This phase frequently involves an automated Online Assessment (OA) on platforms like CodeSignal or HackerRank, or a live technical phone screen with an engineer. Note that certain technical rounds or OAs enforce strict programming language requirements (for example, strictly Java or Go for backend design, or TypeScript/JavaScript for frontend and growth engineering roles).

Candidates who successfully clear the screen progress to the full evaluation loop (often conducted as a virtual onsite). This loop consists of 3 to 4 distinct rounds covering live data structures and algorithms coding, Low-Level Design (LLD), High-Level System Design (HLD), and a behavioral/cultural fit conversation with an engineering manager or director.

06 · The loop

The interview process, end to end

≈ 4-6 weeks · 7 rounds

Initial Screening Call

A call with a talent acquisition partner to discuss the candidate's background and role fit.

Technical Screening

Includes an automated Online Assessment or a live technical phone screen with an engineer.

Full Evaluation Loop

Conducted as a virtual onsite, consisting of 3 to 4 distinct rounds.

Coding Interview

Live coding session focusing on data structures and algorithms.

Low-Level Design

Evaluation of the candidate's ability to design components at a low level.

High-Level System Design

Assessment of the candidate's capability to design systems at a high level.

Behavioral Interview

Conversation with an engineering manager or director to assess cultural fit.

The visual timeline above outlines the standard multi-stage process from application to offer. Candidates should treat each stage as an opportunity to demonstrate technical depth, clear domain reasoning, and structured problem-solving.

5. Deep Dive into Evaluation Areas

To maximize your performance, you should understand the specific dimensions on which Navan technical interviewers judge your solutions across coding, design, and execution.

Data Structures & Algorithms

Algorithms rounds test your fundamental coding execution speed, correct choice of data structures, and ability to handle edge cases. You will write code in a collaborative online environment or IDE.

Be ready to go over:

Array Manipulation & Two-Pointer Methods – Efficiently searching, filtering, and transforming contiguous data.

Concurrent & Multi-threaded Systems – Implementing thread-safe structures (e.g., Pub/Sub systems, thread pools, locks, and concurrent queues).
Graph & Matrix Traversals – Depth-first search (DFS), breadth-first search (BFS), dynamic programming on 2D grids, and pathfinding.
Advanced concepts (less common) – Bit manipulation, trie structures for prefix searching, and segment trees.

Example questions or scenarios:

"Implement an in-memory thread-safe publisher-subscriber message broker."
"Given a 2D matrix, find all valid paths from source to destination moving only down or right."
"Write an algorithm to compute dynamic set-all operations in O(1) time using timestamping or meta-tracking."

Low-Level System Design (LLD) & Object-Oriented Programming

LLD interviews focus on cleanly structuring classes, interfaces, and design patterns to solve real-world platform problems. Interviewers want to see clean abstractions, SOLID design principles, and concrete implementation code in languages like Java, Go, or TypeScript.

Be ready to go over:

Object-Oriented Design Patterns – Factory, Strategy, Observer, Singleton, and Decorator patterns.
Domain Modeling & Interface Definitions – Defining strict API interfaces, models, and data mappers for external service integrations.
In-Memory Caching & Eviction – Designing structures like LRU/LFU caches with efficient synchronization mechanisms.
Advanced concepts (less common) – Writing custom state machines for complex booking lifecycle state transitions.

Example questions or scenarios:

"Design the Low-Level class structure and execution flow for a multi-vendor Flight Aggregation System."
"Implement a rate limiter class supporting token bucket or sliding window algorithm abstractions."
"Design an in-memory queue with multi-consumer topic partition support."

High-Level Architecture (HLD) & Distributed Systems

HLD interviews test your capability to design large-scale enterprise services. Given Navan's core product offerings, system design questions regularly center on search aggregation engines, travel booking pipelines, and financial rule processing.

Be ready to go over:

Distributed Caching & Database Selection – Balancing SQL transactional integrity (for bookings/card billing) against NoSQL key-value stores or Redis for inventory caching.
Asynchronous Architecture & Event Queues – Utilizing Kafka or RabbitMQ for decoupled event processing, status updates, and audit logging.
API Management & Microservice Design – Designing RESTful APIs, GraphQL gateway layers, rate limiters, and payload normalization layers.
Advanced concepts (less common) – SAGA pattern for distributed transaction management across third-party travel vendor APIs.

Example questions or scenarios:

"Architect a high-availability backend search platform similar to Google Flights."
"Design a real-time corporate fraud detection platform processing thousands of card authorizations per second."
"Architect an enterprise receipt parsing and automated expense matching system."

Behavioral & Engineering Execution

Behavioral rounds evaluate your professional maturity, communication efficiency, leadership skills, and approach to system ownership and technical trade-offs.

Be ready to go over:

Ownership & Production Incident Management – How you debug, mitigate, and conduct post-mortems on critical live production failures.
Managing Technical Debt & Refactoring – Pragmatic strategies for modernizing legacy codebases while maintaining continuous delivery schedules.
Collaboration & Cross-Functional Alignment – Working productively with product managers, QA, security teams, and engineering peers.
Advanced concepts (less common) – Managing scope changes mid-sprint and communicating delayed delivery timelines to executive stakeholders.

Example questions or scenarios:

"Describe a situation where a service you owned failed in production. How did you diagnose and fix it?"
"How do you handle refactoring old code when working on tight deadline feature deliverables?"
"Give an example of a technical dispute with an architecture team and how you resolved it."

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08 · Topic breakdown

What they actually test for

Topic distribution

All topics

System DesignJavaLow-Level Design (LLD)Publisher-Subscriber (Pub/Sub)Backend Engineering

6. Key Responsibilities

As a Software Engineer at Navan, your daily responsibilities center on building, scaling, and maintaining mission-critical platform components across travel booking, expense management, and card services.

You will design and implement robust microservices and consumer-facing applications, collaborating closely with product management, design, and operations teams to translate complex enterprise requirements into scalable technical solutions. On the backend, engineers regularly work with modern service stacks relying on Java, Go, or Node.js, writing low-latency APIs and processing pipelines. On the frontend, engineers deliver rich interactive web and mobile surfaces using modern web frameworks such as React or Angular and TypeScript.

Tip

Navan engineering teams heavily prioritize service reliability, scalable API design, clean code architecture, and continuous delivery across multi-region cloud infrastructure.

In addition to shipping new product capabilities, you will actively engage in service maintenance, architecture reviews, automated testing, and legacy refactoring. Because enterprise travel relies on dozens of external partner APIs (airlines, hotel aggregators, car rental networks, and banking networks), engineers must write resilient integration layers with graceful degradation, comprehensive metric monitoring, and automated alerting.

7. Role Requirements & Qualifications

Candidates applying for Software Engineer positions at Navan are expected to demonstrate strong technical fundamentals, hands-on programming experience, and clear architectural instincts.

Technical Skills

Core Programming Languages – Strong proficiency in Java, Go, TypeScript, or JavaScript. Many backend and LLD rounds have strict language enforceability (Java / Go).
Backend Architecture – Experience building RESTful APIs, microservices, gRPC endpoints, and distributed systems.
Data Stores & Caching – Hands-on experience with relational databases (PostgreSQL, MySQL) and in-memory caches (Redis, Memcached).
Concurrency & Asynchronous Messaging – Solid understanding of multi-threading, asynchronous processing, and message queues (Kafka, RabbitMQ).
Frontend Technologies (for Fullstack / Frontend roles) – Proficiency with modern frameworks such as React or Angular, state management, and modern CSS frameworks.

Experience & Soft Skills

Required Experience – Typically 2+ years of professional software development experience for core roles, and 5+ years for Senior/Lead roles, building enterprise software or high-scale web platforms.
Problem Solving – Ability to break down ambiguous business requirements into clean, scalable architectural designs.
Communication – Clear, concise technical writing and verbal communication skills; ability to articulate complex technical trade-offs to non-technical stakeholders.

Skill Breakdown

Must-have skills – Strong proficiency in at least one core backend/frontend language (Java, Go, or TypeScript), data structures and algorithms mastery, object-oriented design patterns, and hands-on experience with relational databases and RESTful API design.
Nice-to-have skills – Direct experience in fintech, corporate expense platforms, or travel industry protocols (NDC, GDS, flight/hotel booking engines); exposure to dynamic microservice refactoring; experience with automated CI/CD pipelines and cloud platforms (AWS, GCP).

8. Frequently Asked Questions

Q: What programming languages am I allowed to use during the technical interviews? Language flexibility depends on the specific round and team. While generic data structures rounds often allow any standard language, specific Online Assessments (OAs) and Low-Level Design (LLD) rounds strictly require Java, Go, or TypeScript/JavaScript. Always confirm language constraints with your recruiter prior to your technical rounds.

Q: How difficult are the algorithmic coding questions at Navan? Coding questions generally fall in the LeetCode Medium difficulty range, focusing on practical data structures, graph/matrix traversals, array manipulation, and dynamic programming or concurrent system design (e.g., Pub/Sub queues or set-all structures). Focus on writing clean, working code with optimal time/space complexity rather than memorizing obscure edge-case algorithms.

Q: How much domain knowledge about travel or expense platforms do I need? While prior experience with airline GDS, flight aggregation, or fintech fraud processing is a strong plus, it is not strictly required. What interviewers evaluate is your ability to quickly reason about high-concurrency, high-availability domain problems like search aggregation, dynamic pricing, and inventory caching.

Q: What is the typical timeline for the interview process? The hiring process typically takes between 2 to 4 weeks from the recruiter screen to an official offer decision. Timeframes can vary based on candidate scheduling and team-specific evaluation requirements.

Q: What is the work culture and environment like within Navan engineering? Navan operates in a high-ownership, fast-paced environment that balances rapid feature shipping with systems modernization. Engineers are given significant autonomy to drive features from design to production monitoring, requiring high individual accountability and strong collaborative instincts.

9. Other General Tips

Prepare for Strict Language Constraints – If interviewing for a backend engineering position, practice your coding and Low-Level Design in Java or Go. For frontend roles, ensure your TypeScript and JavaScript syntax and event-loop understanding (e.g., setTimeout, setInterval under the hood) are rock solid.

Note

Do not assume you can pick any language on all interview rounds. Candidates have reported being caught off-guard by enforced language settings on coding assessments.

Practice Low-Level Object-Oriented Design (LLD) – Spend time practicing class design, interface definition, and design patterns for domain-specific problems like flight aggregators, rate limiters, and message brokers. Focus on modularity, thread safety, and standard SOLID principles.
Master Multithreading and Concurrency – Be ready to implement thread-safe structures or concurrent message queues from scratch. Understand locking mechanisms, synchronization primitives, and asynchronous event loops.
Proactively Discuss Technical Trade-offs – When designing systems or writing algorithms, always state your time/space complexity and offer alternative designs. Explain why you chose a specific database type, caching strategy, or concurrency model over another.

Tip

In system design rounds, start by clarifying non-functional requirements (throughput, latency, availability vs. consistency) before jumping into architecture diagrams.

Frame Behavioral Answers Around Ownership and Refactoring – Prepare specific examples from your past experience detailing how you diagnosed production issues, managed technical debt, refactored old codebases, and communicated technical trade-offs to cross-functional partners.

10. Summary & Next Steps

A Software Engineer role at Navan offers an exciting opportunity to build low-latency, scalable infrastructure and customer-facing software at the intersection of travel tech and enterprise fintech. From flight aggregation microservices to real-time card transaction fraud platforms, the work you do directly impacts global enterprise workflows and business travelers daily.

To succeed in the interview process, focus your preparation on algorithm efficiency, thread-safe data structure implementations, object-oriented Low-Level Design in Java, Go, or TypeScript, and high-level distributed systems architecture. Pair your technical preparation with clear, structured behavioral stories that showcase your technical leadership, problem ownership, and execution capability.

Candidates looking to deepen their interview prep can explore additional detailed company interview guides, community-reported coding questions, and practice resources on Dataford.

14 · Compensation

What this role pays

12 reports

USUSD

Estimated total compMedium confidence · 12 data points

$0k-$0k

Median $167k / year

Base salary · 100%Stock (RSU) · 0%Cash bonus · 0%

25thEntry / smaller markets

$63k

50thTypical offer

$167k

90thTop performers / major metros

$270k

Breakdown by component

Base salary

100% of total

$77k$252k

$164k

median

Stock (RSU)

0% of total

$0$0

median

Cash bonus

0% of total

$0$0

median

Aggregated from 12 self-reported salaries via Glassdoor. Estimates only. Verify against your offer.

The compensation data above illustrates expected base salary bands for software engineering roles at Navan across target locations. Base compensation varies depending on candidate experience level, technical domain specialization, job tier, and geographic location, supplemented by equity options and standard corporate benefits.

15 · The role

Inside the Software Engineer guide at Navan

16 · More at this company

Other roles at Navan

Security Engineer Account Executive Backend Engineer Engineering Manager Frontend Engineer Product Manager

18 · FAQ

Navan Software Engineer interview FAQ

Answered from real candidate and compensation data

How hard are Navan Software Engineer interviews, and what offer rate do candidates report?

Candidates for Navan Software Engineer roles most commonly report an average difficulty level. Across 55 reported interviews, candidates report an offer rate of 25%.

What are the Navan Software Engineer interview rounds, and how does the process usually run?

The process typically starts with an Initial Screening Call with a talent acquisition partner about background and role fit. Then candidates do a Technical Screening with an automated Online Assessment or a live technical phone screen with an engineer. The Full Evaluation Loop is a virtual onsite with 3 to 4 distinct rounds, including a live Coding Interview, Low-Level Design, High-Level System Design, and a Behavioral Interview.

What topics does Navan test for Software Engineer interviews?

System Design, Java, and Low-Level Design are recurring focus areas, alongside Backend Engineering and multithreading. Candidates are also tested on concepts like O(1) time complexity requirements and Pub/Sub patterns, plus travel domain modeling such as Flight Aggregation and Flight Aggregation / Travel Domain Modeling.

What coding and design skills should I prioritize for Navan Software Engineer interviews?

Prioritize data structures and algorithms with strong edge-case handling, plus clean, production-ready code. For design, be ready to translate ambiguous requirements into maintainable components in Low-Level Design, and build resilient distributed architectures in High-Level System Design.

What does Navan Software Engineer pay, and is it different by level or location?

Reported compensation ranges from $76,950 minimum base to up to $270,000 total. Pay varies by level and location, so focus on the range rather than a single number.

What are some real Navan Software Engineer interview questions candidates see for behavioral topics?

Candidates report behavioral questions such as “Collaborating Across Product and Engineering” and “Working Through Team Conflict.” These are geared toward how you communicate and make progress with others, not just technical execution.

Navan Software Engineer interview questions & guide 2026

1. What is a Software Engineer at Navan?

2. Common Interview Questions

Coding & Data Structures

Access the full Navan Software Engineer prep plan

The questions most likely to come up

3. Getting Ready for Your Interviews

4. Interview Process Overview

The interview process, end to end

5. Deep Dive into Evaluation Areas

Data Structures & Algorithms

Access the full Navan Software Engineer prep plan

What they actually test for

6. Key Responsibilities

Tip

7. Role Requirements & Qualifications

Technical Skills

Experience & Soft Skills

Skill Breakdown

8. Frequently Asked Questions

9. Other General Tips

Note

Tip

10. Summary & Next Steps

What this role pays

Inside the Software Engineer guide at Navan

Other roles at Navan

Other Software Engineer guides

Navan Software Engineer interview FAQ