Senior Software Engineer, Fullstack

InvestedintheMission; United States; Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Health insurance

401(k) match

Unlimited PTO

Remote-friendly with WeWork access

Job summary

Vannevar is seeking an experienced full-stack engineer to advance the design and implementation of our Decision Advantage product. This role focuses on building applications used by warfighters and intelligence analysts for mission-critical work, translating complex requirements into intuitive, battle-tested workflows that directly support national security objectives.

You will work in a small cross-functional team spanning data ingestion, backend storage, APIs, frontend, and AI agents,

Qualifications

• 5+ years of professional software development experience.
• Expertise in TypeScript, Node.js, Postgres, and AWS.
• Hands-on experience with at least one major search engine (Elasticsearch or OpenSearch).
• Prior experience in a user-facing product role.

Responsibilities

• Design, build, and ship a cutting edge identity search platform using TypeScript, React, Tailwind, and Node.js
• Collaborate with customers, mission owners, designers, and other engineers to understand user workflows and create 10x better solutions for their problems
• Implement and maintain search and agentic AI systems for high-scale data, both tabular and graph shaped
• Help define and shape the future of the product

Skills

TypeScript

Node.js

Postgres

AWS

Elasticsearch/OpenSearch

Security clearance

Travel willingness

User-facing product experience

Job description

Vannevar builds AI systems for the Department of War's most consequential missions. We have 125 deployments across every branch and combatant command spanning our core platform and five distinct products. An an example of how we work, when major combat operations started with Iran, we fielded a new product supporting 24/7 operations and 9,000+ users in three months.
How we build is our advantage: we deploy forward with the people who own the mission. Our engineers, product team, and CTO deploy forward to the point of friction, including visiting units in Ukraine. We focus on embedding directly with operational units supporting great power competition with China, combat operations with Iran, and counter-narcotics missions.

About the role

Vannevar is seeking an experienced full-stack engineer to advance the design and implementation of our Decision Advantage product. This critical platform enables defense and intelligence operators to gain comprehensive situational awareness of the information environment, helping them understand and counter adversary influence operations and information warfare tactics. You will build the applications our warfighters and intelligence analysts use daily for mission-critical work, developing advanced products and features for information distillation, analysis, and visualization that enable rapid assessment of the information environment. Working alongside designers, engineers, subject matter experts, and operational users, you will transform complex intelligence requirements into intuitive, mission-ready workflows that directly support national security objectives.

In this role, you will work in a small cross-functional team focused on delivering Decision Advantage capabilities to defense customers engaged in strategic competition with near-peer adversaries. You will work on all aspects of the product - everything from data (extraction, ingestion), backend (storage, indexing, APIs), frontend, AI analysis (agents), and more. The platform has a strong foundation to build upon and there is a ton a opportunity to make an impact as we take it to the next level.

Note: this role is also open to staff+ candidates.

What you’ll do

• Design, build, and ship a cutting edge identity search platform using TypeScript, React, Tailwind, and Node.js
• Partner with customers, mission owners, designers, and other engineers to understand user workflows and create 10x better solutions for their problems
• Implement and maintain search and agentic AI systems for high-scale data, both tabular and graph shaped
• Help define and shape the future of the product

What we’re looking for

• 5+ years of professional software development experience
• Expertise in TypeScript, Node.js, Postgres, and AWS
• Hands-on experience with at least one major search engine (e.g., Elasticsearch, OpenSearch)
• Prior experience working in a user-facing product role

Nice to Have

• Active Security clearance or ability to obtain one and desire to travel to visit users, collect feedback, and debug issues
• Prior experience developing AI-native products
• Understanding of search concepts like indexing, ranking, query parsing, and tokenization

What we offer

We’re proud to offer competitive benefits that support our employees. Some key highlights of our benefits package include:

• Health, dental, and vision insurance
• Remote friendly with WeWork access
• Unlimited PTO, shared downtime during the federal holiday calendar, and company-wide off time at the end of each year
• 401(k) match
• Lifestyle & wellbeing stipends
• Salary top-up during military reserve duty
• Fully paid parental leave
• Child and pet care reimbursement during travel

Vannevar is an equal opportunity employer, and qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender perception or identity, national origin, age, marital status, protected veteran status, or disability status.

We encourage candidates from all backgrounds to apply, even if you don't feel like you're a perfect fit. If you're passionate about contributing to our mission, we'd love to hear from you!

IMPORTANT NOTICE
We are committed to protecting the privacy of all applicants. Official emails from the company will come from an @vannevarlabs.com domain. Under no circumstances will a legitimate representative from our company contact you to request passwords, financial information, or other sensitive personal data. Please be vigilant of potential scams.