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Senior Front End Software Engineer

Vannevar Labs
UKRemotefull_timeVerifiedPosted 12 Aug 2025
💰 $210,000/yr($160,000/yr$210,000/yr)

About the role

Vannevar is a defense technology company building AI to deter our adversaries. In the 21st century, conflict moves at algorithmic speed and foresight equals firepower. Our agentic AI is purpose-built to compete with China—from cross-Strait conflict to gray zone coercion. Trained on the most mission-relevant datasets in defense, our technology models adversary behavior, simulates campaigns, and recommends the best course of action to decision makers. Our AI systems are some of the most trusted in the industry and actively used on the front lines of the Indo-Pacific to keep the peace and save lives.

Exceptional technology starts with exceptional people. Vannevar is a small agile team combining world-class engineers with veteran strategists who bring deep expertise in defense and tradecraft. We’re building a company defined by mission impact, user empathy, and disciplined growth. In just three years, we grew from $3M to $80M in ARR, achieved early profitability, and reached unicorn status—proving that disruption doesn’t require an ego, and staying power doesn’t mean standing still.

 

About the role:

As a member of the product engineering organization, you will be embedded within one of our small teams, of 3-5 engineers, focused on delivering mission-critical capabilities into the hands of those who serve our nation. You’ll work directly with Product Managers, Designers, Mission and Engineers to define the product and technical direction for our product(s). 


As a senior engineer, you are expected to take ownership and do whatever it takes to deliver game changing capabilities. You will drive key technical decisions and establish best practices for software engineering within your team. You’ll have a chance to build applications that leverage state of the art tools in Machine Learning and AI, to solve for mission-critical workflows. 

What you’ll do:

  • Develop applications to be hosted on classified networks
  • Implement new features and user interfaces.
  • Architect efficient and reusable front-end systems that drive complex web applications in environments with performance and resource constraints. 
  • Collaborate with Designers, Product Managers, Mission, and Software Engineers to deliver compelling user-facing products. 
  • Own and ship significant features along with architectural changes in collaboration with junior developers. 
  • Provide technical guidance and mentorship to peers. 

Must have:

  • 4+ years of software development building user-facing products. 

  • 4+ years of experience building responsive and performant web UIs.  

  • 2+ years of full stack development, including familiarity with relational databases (like Postgres), caching technologies (like Redis), and object stores (like S3). 

  • Demonstrated knowledge of tools and best-practices for testing web applications is a huge plus. 

  • You must be a US resident or citizen. 

Nice to have:

  • Experience with Typescript, React, and JavaScript
  • Experience building working on front end frameworks 
  • Ability to obtain clearance

What we offer

The salary range for this position is $160,000 - $210,000 + equity + 401K match. Within the range, individual pay is determined by experience, relevant education, and/or training.

We’re proud to offer competitive benefits that support our employees. Some key highlights of our benefits package include:
  • Health, dental, and vision insurance
  • 100% remote first culture. You can work from anywhere in the US and all full time employees have WeWork access
  • Unlimited PTO including competitive vacation and holiday schedules
  • Lifestyle stipends - Monthly mental health, wellness & fitness stipend, in-home office setup stipend and family planning assistance
  • Salary top-up during military reserve duty
  • Fully paid parental leave
  • Child and pet care reimbursement during travel
Vannevar Labs is an equal opportunity employer, and qualified applicants will receive consideration for employment without regard to race, colo

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Company

Vannevar Labs

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