Senior Frontend Engineer
Gallatin AI, Inc.
Senior Frontend Software Engineer
At Gallatin, we are rebuilding logistics infrastructure for the national security missions of the United States and allied partners. We build AI systems that determine how logistics decisions are made — not just how they're executed. From factory to foxhole, we operate at the layer where data becomes decisions, and decisions make the advantage.
You thrive where clean UI execution meets real-world impact. As a Senior Frontend Software Engineer, you build self-contained, reusable, task-focused components and approach UI development with a balance of speed, quality, and empathy for the end user. Your focus is the front end, but your understanding of the full stack is strong enough to contribute ideas, spot architectural tradeoffs, and help shape how our Navigator platform is designed end to end. You care deeply about Developer Experience, have a strong command of RESTful APIs and testing frameworks, and bring a real sense of agency to improving code, tooling, and documentation.
Contribute to our Navigator Vue-based frontend application:
- Build robust visual components and page layouts that integrate seamlessly with documented API endpoints.
- Modularize and improve our visual design library, including shared primitives, CSS tokens, and icon assets.
- Support offline Progressive Web App mode for Disconnected Operations
- Help define best practices, continuously improve CI/CD workflows, while keeping DX at the forefront.
Craft a rock-solid User Experience:
- Help shape a beautiful, high-powered UI while keeping real-world usability and performance constraints in mind.
- Maintain CI/CD pipeline, and check in well-tested, production-ready code.
- Ensure our Navigator app provides a consistent, reliable experience on both Desktop and iPad.
Collaborate and align with cross-functional teammates:
- Work closely with product, design, and backend engineering teams on rapid feature buildouts.
- Balance between shipping UX feature within scope while aiming for "pixel-perfect" mockup renditions.
What We're Looking For:
- Great problem solver
- Familiarity with request codes
- Experience testing API requests with tools such as Postman or Insomnia
- Ability to troubleshoot CORS issues
- Great communicator
- Ability to reach across discipline boundaries to help troubleshoot and test newly added API endpoints
- Clear and concise communication, whether it's writing technical documentation or recording a weekly demo of recent work (a Gallatin tradition)
- Growth mindset
- Always seeing to learn and stay current with industry trends and tools
- Familiarity with RESTful APIs, and high uptime / low latency web applications
- Experience with frontend testing frameworks (Cypress, Playwright, Jest, Vitest)
Bonus Points:
- Experience mentoring and upskilling junior engineers.
- Familiarity with legacy systems and working with public sector customers.
- Comfortable setting up CI/CD pipelines and DevOps workflows.
- Contributions to open-source projects.
We are building the system that enables faster, smarter logistics decisions in contested environments, and we're doing it with a team of seasoned entrepreneurs, operators, and technologists who have built and scaled solutions in this space before. We hold ourselves to an extremely high standard. We value clear thinking, direct communication, and the kind of ownership that doesn't stop until something actually works.
Our mission is to create decision advantage when the stakes are the highest. If we succeed, the system doesn't just run; it gets smarter. We're not building AI for its own sake. We're building it because faster, smarter decisions in the most demanding environments on earth can't wait. If you want to work somewhere the stakes are real and the mission is urgent — you'll fit in here.
The logistics infrastructure that supports America's warfighters and humanitarian disaster responders is overdue for transformation, and we are building it. From defense operations to disaster response, we're solving the hardest problems that keep missions moving when it matters most. Join a team where the mission is the point.
Gallatin offers competitive compensation commensurate with experience. Actual compensation may vary based on experience, skills, and location. In addition to base salary, we offer a generous equity grant, full healthcare coverage, 401k, unlimited PTO, and the perks of working in a high-caliber, mission-driven environment.
Gallatin is an equal opportunity employer. We do not discriminate on the basis of race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity, or any other characteristic protected by applicable federal, state, or local law.
This position may require the ability to obtain and maintain a U.S. government security clearance. The successful candidate must be able to work in a classified environment when necessary.
We comply with the United States Department of Labor's Pay Transparency provision.
Note: Due to the nature of certain government contracts held by this organization, U.S. citizenship is a requirement for all positions at Gallatin. Proof of citizenship will be required prior to employment if selected.
- ...many teams build on it without asking you for helpMentor the engineers coming up behind you and set the quality bar in reviewThe Ideal... ...building production web applications, including time somewhere the frontend was the productExpert-level frontend engineering, where strict...SeniorContract work
- ...Senior Frontend Engineer Merciv is transforming how brands understand consumers through autonomous AI that doesn't just analyze data — it proactively surfaces insights that drive million-dollar decisions. Our platform powers some of the largest retail and consumer...SeniorShift work
- ...Senior Frontend Engineer Our client, a leading innovator in web3 interoperability, is seeking a Senior Front End Engineer to join their dynamic team. They are advancing the state of web3 interoperability by building a universal modular router chain and expanding the...SeniorLive inWork at office
- ...Senior Frontend Engineer Benefits: Medical, Dental, Vision, Paid time off, Matching 401K, Remote work policy. The Role As a Senior Frontend Engineer, you will be one of the first 5 engineers at the company, responsible for building ambitious new features end...SeniorWork at officeRemote workRelocation3 days per week
- ...Senior Frontend Engineer Lev is the operating system for commercial real estate transactions. Too many transactions today are still run on legacy software and manual workflows that haven't meaningfully evolved in decades. Lev is changing that. We have built a unified...SeniorWork at office
$176k - $242k
...Senior Frontend Engineer New York, NY At Picnic, we're reinventing the way employees experience lunch at work. By partnering with top local restaurants and batching hundreds of orders, we make it easy for companies to offer high-quality, individually packed meals...SeniorFull timeTemporary workWork at officeLocal areaImmediate startFlexible hours- ***MUST COME FROM A STARTUP*** Our client is looking for a Senior/Staff Frontend Engineer to join us as we continue to build our products and infrastructure. In this role, you will be instrumental in building out the Advisor Experience of our platform. In collaboration...SeniorFull time
- Justworks in New York City is seeking a Senior Frontend Engineer to build and scale frontend web apps for both internal and public use. You will collaborate with product and design to deliver on-brand experiences and raise the bar for UI quality. You’ll own implementing...SeniorWork at office
- Next.js Senior Frontend Engineer. Onsite in NYC (M-F) [170K -250K comp+ full benefits package + equity] Join a high-growth NYC-based startup as a Frontend Engineer, where you'll design and scale production-grade agents that perform legal tasks with expert-level reasoning...SeniorWorldwideRelocation
$150k - $250k
Ether.fi is hiring Senior Frontend Engineer - $150k-250k/year. Grand Cayman / Denver / New York CityJobsTalentSalariesLayoffsResearchEventsBlogHire# Senior Frontend Engineer## atEther.fiPosted by Ether.fi Oct 06, 2026**About us:**Ether.fi is one of the largest crypto companies...Senior$150k - $250k
...The team includes alumni from Stanford, Harvard, Compound, Meta, Netflix, and more. About the role We're looking for a senior-level frontend engineer with deep React and TypeScript experience to build consumer-facing crypto and payments products. As a Frontend...SeniorRelocationVisa sponsorship$180k - $226k
...internet. We’re looking for an enthusiastic, self-motivated frontend engineer to help us build the next generation of financial products. As... ...engineers with minimal day-to-day assistance from more senior engineers or managers Rapidly implement functional UI elements...SeniorFull timeRemote workHome office- ...technical strategy and held accountable for delivering outcomes, not just plans or implementationWhat You'll Bring5+ years of frontend engineering experienceYou have empathy for compensation teams and understand the challenges involved in pricing an employees’ payStrong...SeniorFlexible hours
$250k - $350k
...Senior Frontend/UI Software Engineer (Quant Trading) Salary: $250k-350k Total compensation: ranging $400k-750k depending on performance and seniority A leading quantitative trading firm is hiring a Senior Frontend/UI Software Engineer to join a small, highly skilled...SeniorFull time- Brex is seeking a Senior Frontend Engineer in New York to build and maintain scalable features across the Brex stack. You will work with cross-functional teams to deliver high-quality, client-facing software and drive a data-driven, metrics-oriented approach to product...SeniorRemote job
- Picnic is seeking a Senior Frontend Engineer in New York to build and scale our real-time logistics and operations platforms. You will work across web and mobile, collaborating with backend and operations teams, and shape frontend architecture for high-throughput systems...Senior
- Beyond Sports is seeking a Senior Frontend Engineer (Contractor/Freelance) based in Hungary for a 3-month engagement. You will build responsive frontend solutions using React, vanilla JavaScript, and modern UI practices, delivering high-quality code and collaborating with...SeniorRemote jobDaily paidContract workFor contractorsFreelance
$205k - $300k
...the world’s top educational institutions Work together with engineers, scientists, operators, and more from Palantir, Meta, Scale... ...measurably changes how enterprises operate. We're looking for a Senior Frontend Engineer who wants to architect the foundation — not just...SeniorFull timeWork at officeRemote workFlexible hours- ...work on complex financial platforms that manage high-volume datasets, advanced grid interactions, and role-based workflows. This is a senior-level opportunity to contribute to architecture decisions, improve usability, and drive UI excellence.What You’ll TackleBuild...Senior
$225k
...Senior Frontend Engineer required for a well-funded AI healthcare startup building new-gen patient-facing software. Built consumer products at a startup? Passionate about creating exceptional user experiences? This could be an opportunity to apply those skills to...SeniorPermanent employmentFull time- ...Clearance Required Role Summary You'll be a high-output engineer building mission-critical operator experiences - implementing... ...data with speed and precision. You'll contribute meaningfully to frontend architecture and design decisions, own significant features end...SeniorFull timeContract workFlexible hours
- Courier Health is seeking a Senior Software Engineer, Frontend in New York City to lead frontend architecture and a growing design system. You’ll shape how patients, clinicians, and researchers interact with our life-sciences engagement platform by building scalable components...SeniorWork at office
- Harvey, Inc. is seeking a Software Engineer to join the Product Engineering team and drive cross-stack projects across multiple product lines. You will collaborate with AI, Legal, and GTM teams to build secure, scalable systems that deliver value to customers. You will...SeniorRelocation package
- ...Job Description: Senior Front-End Engineer Role Type: Contractor Location: Remote micro1 is engaging Senior Front-End Engineers to contribute to an innovative customer project focused on AI training. In this role, you'll apply your expertise to help...SeniorFor contractorsRemote work
$136k - $175k
...Front-End Senior Engineer The Front-End Senior Engineer will play a key role in designing and implementing user-facing features for enterprise-grade applications. This position requires strong technical expertise, a passion for creating intuitive interfaces, and the...Senior$130k - $170k
A leading financial technology firm is seeking a Remote Senior Frontend Engineer to develop an intuitive CRM for financial advisors. The role requires expertise in React and/or TypeScript, with additional design sensibilities as a plus. This position offers a competitive...SeniorRemote job- ...time About the Role We are seeking a highly experienced Senior UX/UI Developer who combines strong visual design skills with... .... Collaborate closely with product managers, software engineers, and other stakeholders. Integrate front-end code into existing...SeniorFull timeLocal areaRelocation3 days per week
$180k - $275k
...-world intelligence. The Role You\'ll join a talented team of engineers experienced with large-scale applications, helping scale the platform... ...ship features regularly. What We\'re Looking For 5+ years of frontend engineering experience Experience with React, Redux, Node, and...SeniorWork at office- ...minimal latency overhead Observability: Inference data and user feedback fed directly into your systems Optimization: From prompt engineering to fine-tuning and reinforcement learning Experimentation: Built-in A/B testing, smart routing, and fallback capabilities The...Senior
$200k
Overview Senior Frontend Engineer - Remote/Hybrid (NYC or Austin) - $200,000 We’re partnering with a high-growth AI startup transforming a multi-trillion-dollar global industry that has remained largely untouched by modern software. Backed by top-tier VC investors and...SeniorWork at officeImmediate startRemote workFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Frontend Engineer. Be the first to apply!
- front end engineer New York, NY
- frontend developer New York, NY
- senior front-end developer New York, NY
- react front end developer New York, NY
- front end web developer New York, NY
- front end developer contract New York, NY
- front end web developer part time New York, NY
- front end developer internship remote New York, NY
- senior frontend developer New York, NY
- entry level front end web developer New York, NY




