2,358 Frontend Engineer jobs in the United States
Frontend Engineer
Posted today
Job Viewed
Job Description
Lightning AI is the company reimagining the way AI is built. After creating and releasing PyTorch Lightning in 2019, Lightning AI was launched to reshape the development of artificial intelligence products for commercial and academic use.
We are on a mission to simplify AI development, making it accessible to everyone-from solo researchers to large enterprises. By removing the complexity of building and deploying AI tools, we empower innovators to focus on solving real-world problems. Our platform is built to scale with the latest AI advancements while staying intuitive and adaptable, so you can bring your ideas to life.
We have offices in New York City, San Francisco, and London and are backed by investors such as Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.
Our Values
- Move Fast : We act with speed and precision, breaking down big challenges into achievable steps.
- Focus : We complete one goal at a time with care, collaborating as a team to deliver features with precision.
- Balance : Sustained performance comes from rest and recovery. We ensure a healthy work-life balance to keep you at your best.
- Craftsmanship : Innovation through excellence. Every detail matters, and we take pride in mastering our craft.
- Minimal : Simplicity drives our innovation. We eliminate complexity through discipline and focus on what truly matters.
We are looking for a frontend engineer to help us develop and scale the UI and frontend infrastructure of the Lightning AI platform.
We want someone who can take ownership of key features and drive development from end to end while collaborating with a super-smart team of engineers, product managers, and designers. Here, you'll build from proof of concept to release with a focus on speed, quality, and iteration.
With over 10,000 organizations building with Lightning, you'll have a unique opportunity to impact how the world builds and deploys AI to production.
You will be joining the Blue Squad and report to our Director of Engineering. This is a hybrid role based in our Palo Alto office with in-office requirements of 2 days per week. The salary range for this role is $120,000 - $50,000.
What You'll Do
- Write readable/testable/efficient code in React and Redux and master our technology stack to deliver new features, improve system stability, and increase overall performance.
- Partner with engineering and product leaders on developing the user interface and frontend infrastructure while using your experience to set the technical direction for large projects.
- Evaluate, strengthen, and document technical architecture, tools, and processes.
- Champion software quality, implement automation, drive continuous delivery, and reduce time to production while proactively reducing technical debt.
- Mentor and coach engineers on system design, operating in high uncertainty, and problem-solving to create a supportive, inclusive environment in which each engineer can grow.
- Proficiency in React, javascript and typescript. Strong understanding of software engineering principles and lifecycle.
- Hands-on experience as a frontend engineer in a SaaS technology company
- Proven ability to take ownership of key features and drive end-to-end development
- Communication and collaboration with engineers, product managers, and designers
- Ability to operate in high uncertainty and rapidly changing environments
We offer competitive base salaries and stock options with a 25% one year cliff and monthly vesting thereafter. For our international employees, we work with Velocity Global to pay you in your local currency and provide equitable benefits across the globe.
In the US, we offer:
- Medical, dental and vision
- Life and AD&D insurance
- Flexible paid time off plus 1 week of winter closure
- Generous paid family leave benefits
- 500 monthly meal reimbursement, including groceries & food delivery services
- 500 one time home office stipend
- 1,000 annual learning & development stipend
- 100% Citibike membership (NYC only)
- 45/month gym membership
- Additional various medical and mental health services
At Lightning AI, we are committed to fostering an inclusive and diverse workplace. We believe that diverse teams drive innovation and create better products. We provide equal employment opportunities to all employees and applicants without regard to race, color, religion, gender, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic. We are dedicated to building a culture where everyone can thrive and contribute to their fullest potential.
Frontend Engineer
Posted today
Job Viewed
Job Description
We are looking for a talented Frontend Engineer to join our team and contribute to building cutting-edge, user-facing products. You will work on applications that handle and display large volumes of data efficiently while ensuring optimal performance, security, and user experience. If you have a strong foundation in modern web technologies and a passion for delivering exceptional frontend solutions, this role is for you.
Requirements
Responsibilities
- Develop and maintain highly responsive and data-driven frontend applications using React/Redux and TypeScript .
- Build and optimize user interfaces that handle and display large datasets effectively.
- Work with REST APIs to integrate backend services seamlessly into the frontend.
- Configure secure Content Delivery Networks (CDNs) , browser caching, and implement content delivery optimizations.
- Implement server-side rendering (SSR) to improve performance and SEO.
- Ensure secure account session management for users and maintain compliance with best practices.
- Collaborate with UX/UI designers and backend engineers to create cohesive and engaging user experiences.
- Technical Expertise:
- Proficiency in modern frontend frameworks and libraries such as React/Redux and TypeScript .
- Experience building user-facing products, especially those that display and interact with large volumes of data.
- Strong understanding of web optimization techniques, including configuring CDNs , browser caching, and SSR.
- Familiarity with secure account session management practices.
- Experience integrating with REST APIs to enable dynamic user experiences.
- Nice-to-Have Skills:
- Experience with Cornerstone JS or similar libraries for medical imaging or other specialized domains.
- Knowledge of WebAssembly (WASM) and its integration into web applications.
- Prior experience in building scalable, secure, and data-intensive frontend applications.
- A strong understanding of frontend security best practices.
- Experience with visualization tools or libraries for rendering complex datasets.
Frontend Engineer
Posted today
Job Viewed
Job Description
Lightning AI is the company reimagining the way AI is built. After creating and releasing PyTorch Lightning in 2019, Lightning AI was launched to reshape the development of artificial intelligence products for commercial and academic use.
We are on a mission to simplify AI development, making it accessible to everyone-from solo researchers to large enterprises. By removing the complexity of building and deploying AI tools, we empower innovators to focus on solving real-world problems. Our platform is built to scale with the latest AI advancements while staying intuitive and adaptable, so you can bring your ideas to life.
We have offices in New York City, San Francisco, and London and are backed by investors such as Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.
Our Values
- Move Fast : We act with speed and precision, breaking down big challenges into achievable steps.
- Focus : We complete one goal at a time with care, collaborating as a team to deliver features with precision.
- Balance : Sustained performance comes from rest and recovery. We ensure a healthy work-life balance to keep you at your best.
- Craftsmanship : Innovation through excellence. Every detail matters, and we take pride in mastering our craft.
- Minimal : Simplicity drives our innovation. We eliminate complexity through discipline and focus on what truly matters.
We are looking for a frontend engineer to help us develop and scale the UI and frontend infrastructure of the Lightning AI platform.
We want someone who can take ownership of key features and drive development from end to end while collaborating with a super-smart team of engineers, product managers, and designers. Here, you'll build from proof of concept to release with a focus on speed, quality, and iteration.
With over 10,000 organizations building with Lightning, you'll have a unique opportunity to impact how the world builds and deploys AI to production.
You will be joining the Red Squad and report to our Director of Engineering. This is a hybrid role based in our New York City office with in-office requirements of 2 days per week. The salary range for this role is $120,000 - $50,000.
What You'll Do
- Write readable/testable/efficient code in React and Redux and master our technology stack to deliver new features, improve system stability, and increase overall performance.
- Partner with engineering and product leaders on developing the user interface and frontend infrastructure while using your experience to set the technical direction for large projects.
- Evaluate, strengthen, and document technical architecture, tools, and processes.
- Champion software quality, implement automation, drive continuous delivery, and reduce time to production while proactively reducing technical debt.
- Mentor and coach engineers on system design, operating in high uncertainty, and problem-solving to create a supportive, inclusive environment in which each engineer can grow.
- Proficiency in React, javascript and typescript. Strong understanding of software engineering principles and lifecycle.
- Hands-on experience as a frontend engineer in a SaaS technology company
- Proven ability to take ownership of key features and drive end-to-end development
- Communication and collaboration with engineers, product managers, and designers
- Ability to operate in high uncertainty and rapidly changing environments
We offer competitive base salaries and stock options with a 25% one year cliff and monthly vesting thereafter. For our international employees, we work with Velocity Global to pay you in your local currency and provide equitable benefits across the globe.
In the US, we offer:
- Medical, dental and vision
- Life and AD&D insurance
- Flexible paid time off plus 1 week of winter closure
- Generous paid family leave benefits
- 500 monthly meal reimbursement, including groceries & food delivery services
- 500 one time home office stipend
- 1,000 annual learning & development stipend
- 100% Citibike membership (NYC only)
- 45/month gym membership
- Additional various medical and mental health services
At Lightning AI, we are committed to fostering an inclusive and diverse workplace. We believe that diverse teams drive innovation and create better products. We provide equal employment opportunities to all employees and applicants without regard to race, color, religion, gender, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic. We are dedicated to building a culture where everyone can thrive and contribute to their fullest potential.
Frontend Engineer
Posted today
Job Viewed
Job Description
We are looking for a talented Frontend Engineer to join our team and contribute to building cutting-edge, user-facing products. You will work on applications that handle and display large volumes of data efficiently while ensuring optimal performance, security, and user experience. If you have a strong foundation in modern web technologies and a passion for delivering exceptional frontend solutions, this role is for you.
Requirements
Responsibilities- Develop and maintain highly responsive and data-driven frontend applications using React/Redux and TypeScript .
- Build and optimize user interfaces that handle and display large datasets effectively.
- Work with REST APIs to integrate backend services seamlessly into the frontend.
- Configure secure Content Delivery Networks (CDNs) , browser caching, and implement content delivery optimizations.
- Implement server-side rendering (SSR) to improve performance and SEO.
- Ensure secure account session management for users and maintain compliance with best practices.
- Collaborate with UX/UI designers and backend engineers to create cohesive and engaging user experiences.
- Technical Expertise:
- Proficiency in modern frontend frameworks and libraries such as React/Redux and TypeScript .
- Experience building user-facing products, especially those that display and interact with large volumes of data.
- Strong understanding of web optimization techniques, including configuring CDNs , browser caching, and SSR.
- Familiarity with secure account session management practices.
- Experience integrating with REST APIs to enable dynamic user experiences.
- Nice-to-Have Skills:
- Experience with Cornerstone JS or similar libraries for medical imaging or other specialized domains.
- Knowledge of WebAssembly (WASM) and its integration into web applications.
- Prior experience in building scalable, secure, and data-intensive frontend applications.
- A strong understanding of frontend security best practices.
- Experience with visualization tools or libraries for rendering complex datasets.
Frontend Engineer
Posted 1 day ago
Job Viewed
Job Description
Promise empowers utilities and government agencies to create flexible, affordable solutions for individuals struggling with debt. Our innovative approach to payment plans and relief distribution significantly improves enrollment and recovery rates, helping individuals clear debts faster and reducing delinquencies for our partners.
We treat people facing financial difficulties with respect and dignity, providing the tools and resources they need to thrive. Our team includes experts from companies like Palantir, Google, Stripe , and esteemed government leaders.
Backed by over $50 million in funding from top investors - such as Reid Hoffman, Howard Schultz, Michael Seibel, Y Combinator, 8VC, The General Partnership, First Round Capital, Kapor Capital, XYZ Ventures, and Bronze Investments - Promise has been recognized as one of Fast Company's "World's Most Innovative Companies of 2022," "Forbes Next Billion-Dollar Startups 2024," and Y Combinator's #1 GovTech startup.
Role Overview
As a Frontend Software Engineer at Promise, you'll be responsible for creating interfaces and frameworks that allow individuals facing financial difficulty to directly interact with essential public services. You'll use modern web tools like React, Typescript, and GraphQL to streamline the flow of data from backend services to web pages, guide users through various flows, and ultimately build a powerful yet easy-to-use product.
Being in the early stages of our product development provides you with a unique opportunity to leave a significant imprint on our software architecture and user experience. Join us in our fast-paced, growth-driven environment where your code will make a direct impact on people's lives and improve government efficiency.
What You'll Do
- Design and deliver efficient and reusable frontend systems, orchestration layers, and components that will directly impact thousands of monthly users.
- Collaborate with designers and project managers to develop a compelling end-user experience on our web applications.
- Experiment with new design patterns, tooling, and frameworks and advocate for ways they can improve our applications.
- Identify and resolve issues in the product to maintain a high quality bar for our work.
- Collaborate with backend engineers to define services and APIs that the frontend consumes (and contribute backend code yourself when needed to unblock projects)
- A minimum of 3 years of experience in frontend software development building impactful user interfaces, preferably working in startups or other highly dynamic environments.
- A heartfelt commitment to creating software that centers around equity and accessibility.
- Proficiency with modern frontend programming languages and web technologies. While we use React/Typescript, we are looking for people who can write good frontend code regardless of framework.
- Proven track record of working independently and making decisions without direct oversight.
- An inclusive approach to teamwork, valuing diverse perspectives, and being eager to both share your insights and gain wisdom from those around you.
At Promise, we invest in our team's well-being, growth, and sense of ownership.
- Equity for All: All full-time employees receive stock options to share in our company's success.
- 100% Paid Health Coverage: We cover 100% of base medical, dental, and vision insurance plans for employees and their dependents.
- Flexible Hybrid Work: We collaborate in office at least three days a week to stay connected and aligned as a team.
Please note: Benefits are reviewed periodically and may be updated at the sole discretion of Promise.
Promise is an equal opportunity employer and does not discriminate against any applicant or employee because of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, genetic information, age, or military or veteran status. Additionally, the Company complies with applicable state and local laws governing non-discrimination in employment in every jurisdiction in which it operates. Promise is committed to promoting diversity and inclusion in the workplace. We also provide reasonable accommodations to qualified individuals with disabilities, pregnant individuals, and those with sincerely held religious beliefs, in accordance with applicable laws.
Promise engages in US government contracts and restricts hiring to US persons, which includes US citizens and permanent residents (e.g., Green Card holders). Additionally, candidates must reside in the US.
Frontend Engineer
Posted 2 days ago
Job Viewed
Job Description
As a frontend engineer at Privy, you will take on large areas of ownership in Privy's product, design, and infrastructure. Because we build a developer tool, engineering and product are inextricably connected. We value intuitive interfaces, simplicity, and rapid iteration. Above all, we are building a company together to ship products that users love.
What you'll do
- Design intuitive interfaces to break down complex systems and turn them into delightful developer tooling
- Work closely with our Product and Design teams
- Design and implement end-to-end product features driven by user needs
- Architect entirely new SDKs and build tooling upgrades along the way
- Advocate for usability and interface coherence across our teams and products
- Deep knowledge of Javascript and React, experience with Next.js is a plus
- Experience building and maintaining a production system at scale
- Prior experience working closely with a designer to iterate on a product
- An understanding of modern web development best practices
- Experience writing delightful developer documentation
- Written open-source developer tooling
- Published about your work (code, presentations, papers, blog posts, etc.)
- Past experience working closely with Design teams in authentication, security, or in web3
Engineering at Privy
Engineering at Privy is not just about writing world-class code. We create software that turns complex technical systems into delightful developer tools. We assemble tried-and-true primitives into intuitive, responsive APIs and beautiful interfaces. We believe in open-source work and transparency with our teammates and users. We encourage each other to think big, run experiments and follow our curiosity so we can build better tooling that lets developers shine and empowers their users.
Privy is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees, regardless of background, identity, or status.
Frontend Engineer
Posted 8 days ago
Job Viewed
Job Description
Outset is revolutionizing how companies learn from their users. Our AI-moderated user interview platform delivers deeper insights than traditional surveys, bridging the communication gap between businesses and their customers. Using industry-leading real-time voice-to-voice technology and a custom, in-house Large Language Model, Outset enhances user interviews, minimizes latency, and ensures exceptional user experiences.
As part of the next generation of AI-driven customer research, Outset is building the infrastructure that empowers teams to truly understand their users. By addressing the complexities of real-time data streaming, analysis, and classification, Outset enables companies to accelerate product development, improve user satisfaction, and drive smarter strategic decisions.
What you will do:
- Collaborate closely with the CTO and CEO on strategic technical decisions and product direction.
- Design, develop, and optimize intuitive, user-friendly frontend interfaces using React and Next.js.
- Build robust and responsive components that seamlessly integrate with backend services and APIs.
- Enhance user experiences through real-time data visualization and interaction.
- Lead frontend projects from initial conception through production deployment, ensuring scalability, responsiveness, and reliability.
- Interface directly with users to gather feedback, understand pain points, and continuously improve our product's UI/UX.
- 3+ years of software engineering experience building production-grade frontend systems.
- Strong proficiency with JavaScript/TypeScript, React, and Next.js.
- Experience building scalable, responsive web applications.
- Familiarity integrating frontend applications with RESTful or GraphQL APIs.
- Strong understanding of UI/UX principles and best practices.
Actual compensation packages are based on various factors unique to each candidate, including skill set, depth of experience, and certifications. In addition to cash compensation, all full-time employees receive an equity compensation package.
Benefits:
- Unlimited PTO and company holidays
- Commuter benefits
- Comprehensive health, vision, and dental insurance
- 401(k) plan
- Free lunch
- In-office snacks and meals provided when working late
Outset is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees, free from discrimination based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability, or any other protected class.
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Frontend Engineer
Posted 9 days ago
Job Viewed
Job Description
We are seeking an experienced and motivated frontend engineer to advance our core mission: using the world's most advanced technology for emotion understanding to build empathy and goal-alignment into AI. Join us in the heart of New York City, or wherever you are located, and contribute to our endeavor to ensure that AI is guided by human values, the most pivotal challenge (and opportunity) of the 21st century.
About Us
Hume AI is dedicated to building artificial intelligence that is directly optimized for human well-being. We raised a Series B funding round in 2024 and just launched the beta of our next flagship AI model, EVI 3, a foundational speech-language model that drives an empathic AI assistant for any application.
Our models understand subtle tones of voice, word emphasis, facial expression, and more, along with the reactions of listeners. EVI 3 uses the same intelligence to handle transcription, language, and speech, understands and responds with the expressive, emotionally intelligent voice in real time - using any voice and personality you create with a prompt. It is rated higher than GPT-4o on empathy, expressiveness, naturalness, and speed, instantly speaks with 100K+ unique voices and styles, streams language, emotion, and reasoning - all at once, and is fast enough to feel truly conversational (<300ms latency). Try it at demo.hume.ai
Our goal is to enable a future in which technology draws on an understanding of human emotional expression to better serve human goals. As part of our mission, we also conduct groundbreaking scientific research, publish in leading scientific journals like Nature, and support a non-profit, The Hume Initiative, that has released the first concrete ethical guidelines for empathic AI ( You can learn more about us on our website ( and read about us in WIRED, Forbes, and Venturebeat.
About the Role
As a Frontend Engineer, you will work closely with our team of research scientists, machine learning engineers, and designers to build our developer platform and commercial applications, making our powerful AI solutions accessible to users with varying degrees of technical sophistication through cutting edge no-code tools.
Responsibilities
- Lead customer-facing initiatives by contributing new features to our frontend tools while maintaining high standards of excellence.
- Work autonomously to maintain and identify areas of improvement for existing code and tests.
- Identify areas for improvement within existing codebase that reduces code complexity and improves overall performance of web applications.
- Build internal tools to help facilitate prototyping, maintenance, and quality of codebase.
- Mentor junior engineers and help provide documentation and resources for onboarding coworkers to new features and components.
- Collaborate closely with our design, product, backend, and research teams.
- 6-10 years of experience in developing frontend web applications.
- Proficiency with a modern frontend stack (TypeScript, React, Next, Tailwind, etc).
- Expertise in modern frontend best practices, including accessibility, semantic markup, Core Web Vitals, and optimization.
- Proficiency with tools like debuggers, profilers, and flamegraphs to identify areas of improvement for performance
- Proficiency with tools for automated testing and CI/CD (such as Jest, Playwright, Axe, Wave, GitHub Actions, Dev Containers).
- Excellent communication and collaboration skills.
- Familiarity with modern animation and data visualization libraries.
Application Note
Please apply only to the position that best aligns with your qualifications. If you submit multiple applications or have applied within the past 6 months, only your initial submission will be considered.
Annual Salary
$130,000-$230,000 USD
Frontend Engineer
Posted 14 days ago
Job Viewed
Job Description
We're building the future of B2B SaaS with AI agents. We're an enterprise company that cares a lot about user experience. You'll own the interfaces and tools that our customers use to make sense of and tune millions of agent actions and decisions operating over 100% of their platform data. You'll work directly with customers every day and have unusual influence over operations and policy-making at the world's biggest companies.
We work in React, Typescript, and a tiny amount of Python, but we try not to be precious about these things.
Responsibilities
- Turn language models into useful, functional, and beautiful products.
- Get to know our users deeply, using your product intuition to decide what matters to them. You'll have to choose will need to make decisions on when time is best spent working on 'perfect' vs 'good enough'
- Define and maintain best practices in our frontend codebase.
- Clearly communicate complex ideas
- Use codegen models to move 10x faster than you did two years ago
- You love software.
- You have a good design sense.
- You act like an owner in everything you do.
- People tell you you pick things up unusually quickly.
- You love the weird little details of life in our customer's companies.
- You care about your work and you care about moving fast. A lot.
- You know more than you need to know. You have an insatiable curiosity.
Frontend Engineer
Posted 14 days ago
Job Viewed
Job Description
We want engineers who can build a team and a company, not just a best-in-class product. We believe that certainly takes broad technical competence across our tech stack, but it also takes harder to find abilities, such as.
- Thinking forward from first principles and backwards from customer needs at the same time.
- Curiosity about both technical and business problems.
- Navigating competing priorities and tradeoffs using your own mental map of company goals.
- A desire for ownership in product & team decisions.
- Loving people and wanting to make your teammates around you better at their own strengths.
- 4+ years of experience on strong software teams
- Experience with the highs and lows of building new products from scratch
- A track record of growth in team leadership
Our Stack
We don't index on how familiar candidates are with our tech stack. That's one of the benefits of hiring excellent engineers: we're confident you'll get up to speed and we're confident the rest of the team can help you do it. That said, we want everyone to be excited about the environment and tool kit they'll have on day one.
- API language: Kotlin
- Embedded components: React
- API framework: Ktor
- Database: Postgres (RDS)
- ORM: Exposed
- Testing: Kotest/JUnit
- CI/CD: Github Actions
- Deployment: Containerized ECS service behind API Gateway
- Monitoring/visibility/logging: Betterstack & Sentry
What we value in people
- Curiosity . Everyone, even startup vets, will have to learn on the job 90% of what it'll take to be successful. On top of that, everyone at Layer needs to learn accounting too. Thriving in this environment usually means having a natural curiosity for both people and systems.
- Enjoying the startup journey . Startups are hard no matter what, but they're only as enjoyable as you make it. We are having fun and we don't believe we can succeed as a team without that sense of fun, so it's important that the whole team loves what they do each day both when success feels easy and when it doesn't.
- Caring about the product and the user. We love small businesses. We love small business owners. We believe they're important as people, their business outcomes are important, and that our product is a big part of creating those outcomes.
- Competitive seed-stage salary
- Top of market equity
- An employee friendly equity plan
- Health/dental/vision
- Lunch in-office