Senior Frontend Engineer

As a Senior Frontend Engineer for Growth at Checkr, you will play a crucial role...

Location

United States , Denver; San Francisco

Salary:

155000.00 - 215000.00 USD / Year

Checkr

Expiration Date

Until further notice

Requirements

5+ years of professional experience building web applications
Strong React skills — deep understanding of hooks, context, component patterns, and performance optimization
TypeScript proficiency in a production environment
Experience with JavaScript testing frameworks (Jest, Vitest, React Testing Library, Cypress)
Experience running A/B experiments and using data to inform product decisions
Ability to write clean, maintainable, well-tested code
Excellent collaboration skills — comfortable working directly with Product Managers and Designers
Strong communication skills — can articulate technical tradeoffs to non-technical stakeholders

Job Responsibility

Develop new customer experience capabilities and product offerings from design through release
Find the balance between speed to market and long-term growth by designing for the horizon and building for today
Bring an iterative mindset to experiment, learn, and iterate to provide the best experience for the customers
Partner with Product to define appropriately sized initiatives to construct a roadmap that meets business needs quarter over quarter
Preserve customer goodwill by ensuring system availability by participating in on-call rotation, addressing support tickets, and taking action on preventative measures to improve reliability
Provide mentorship to engineers on the team and across the organization
Play an active role in the continuous improvement of the engineering organization through lunch table discussions, team showcases, and reviews with senior leadership

What we offer

A fast-paced and collaborative environment
Learning and development allowance
Competitive cash and equity compensation, and opportunity for advancement
100% medical, dental, and vision coverage
Up to $25K reimbursement for fertility, adoption, and parental planning services
Flexible PTO policy
Monthly wellness stipend
In-office perks (lunch four times a week, a commuter stipend, and an abundance of snacks and beverages)
A relocation stipend may be available for those willing to relocate to a Checkr hub location

Fulltime

Senior Frontend Engineer

We are looking for a Senior Frontend Engineer to join Fever, a leading tech plat...

Location

Spain

Salary:

Not provided

Fever

Expiration Date

Until further notice

Requirements

Solid experience with Angular (version 10 or higher), HTML5, CSS3, SASS, and Typescript
Comfortable addressing cross-browser compatibility challenges and building responsive designs
Confident working with RESTful APIs and experience with API-first development and OpenAPI specifications
Write maintainable, high-quality code that aligns with established standards and naturally think in terms of testing and reliability
Fluent in business English and communicate effectively in a collaborative team setting

Job Responsibility

Design easy-to-use, performant, and exciting web experiences serving thousands of users around the world
Work as part of an agile, cross functional team with other full stack, mobile, backend and frontend engineers, together with the product designers
Understand the technical trade offs of different solutions, implement them and make them scalable
Have a product-oriented mindset and work towards best outcomes for the product
Collaborate with the larger team via regular design critiques and working sessions

What we offer

Attractive compensation package consisting of base salary and the potential to earn a significant bonus for top performance
Stock options
Opportunity to have a real impact in a high-growth global category leader
40% discount on all Fever events and experiences
Home office friendly
Responsibility from day one and professional and personal growth
Health insurance and other benefits such as Flexible remuneration with a 100% tax exemption through Cobee
English Lessons
Gympass Membership
Possibility to receive in advance part of your salary by Payflow

Fulltime

Senior Frontend Software Engineer

We are looking for brilliant, creative, curious, and experienced frontend softwa...

Location

United Kingdom , Edinburgh

Salary:

Not provided

Blis

Expiration Date

Until further notice

Requirements

Javascript and Typescript
ReactJS
CSS and CSS preprocessors
Advanced HTML and DOM knowledge
RESTFul, SPA, and MVC concepts and architectures
Playwright, RTK Query, React Testing Library
7+ years experience as a frontend engineer exposed to visual-oriented, customer-centric web applications
Degree in Computer Science, Software Engineering, or similar

Job Responsibility

Innovate, implement, support, and iterate on our user-facing web applications
Write and improve robust and highly maintainable Javascript and ReactJS code
Ensure our designs and systems are resilient, robust, and secure
Support and mentor other members of the team
Commitment to Blis' Inclusion initiatives & 5 step sustainability plan

Senior Frontend Infrastructure Engineer

Coralogix is a modern, full-stack observability platform transforming how busine...

Location

Israel , Ramat Gan

Salary:

Not provided

Coralogix

Expiration Date

Until further notice

Requirements

5+ years of experience in frontend development with one of the major frameworks
Strong expertise in architecting frontend infrastructure
Proficiency with tools and workflows like GitHub Actions, lint tools etc.
Experience with monorepo workspaces (e.g Lerna, Nx)
Experience with optimizing build times and creating efficient workflows
Strong understanding of HTML5, CSS3, SCSS, JavaScript (ES6+), and TypeScript
Experience with RESTful APIs and WebSockets
Strong understanding of UI/UX best practices
Experience with unit testing and frontend testing frameworks (e.g., Jest, Playwright)
Strong problem-solving skills and attention to detail

Job Responsibility

Design and maintain scalable web applications
Implement and optimize design systems
Improve build processes for efficiency
Create automated workflows
Write clean and testable code
Collaborate with cross-functional teams to deliver features
Debug and upgrade software
Stay current with emerging frontend technologies

Fulltime

Senior Frontend Engineer

We’re seeking a highly skilled Senior Frontend Engineer to help lead frontend de...

Location

Salary:

Not provided

Tech Holding

Expiration Date

Until further notice

Requirements

5+ years of professional experience in frontend development, with a strong focus on building dynamic and responsive web applications
Expert understanding of the JavaScript ecosystem, specifically around React, TypeScript, and testing frameworks
Expert understanding of user-centered design principles, design systems, and responsive design
Demonstrated experience in improving web application performance
Strong communication skills and experience working in a collaborative, Agile environment

Job Responsibility

Develop and maintain user-facing features with clean and reusable code
Collaborate with the design team to ensure pixel-perfect UI and a smooth and intuitive user experience
Collaborate with the product team to understand requirements, scope and prioritize features to ensure timely delivery
Write and maintain unit and integration tests to ensure code quality and reliability
Optimize for speed, scalability, and performance
Review code and provide technical feedback to team members
Mentor and coach junior frontend engineers
Participate in agile sprint rituals such as standups and planning
Write and maintain internal technical documentation
Debug and resolve production issues

What we offer

Remote and flexible work environment
Exposure to enterprise clients and transformative cloud projects
Opportunity to directly impact Tech Holding's growth and client success
Competitive compensation package

Fulltime

Senior Frontend Engineer

We’re looking for a Senior Frontend Engineer who cares deeply about how fast, st...

Location

United States

Salary:

175000.00 - 200000.00 USD / Year

Arize

Expiration Date

Until further notice

Requirements

5+ years of experience building user-facing web applications, including senior-level ownership of complex, high-impact projects
Fluent in React and TypeScript, and have helped shape or modernize a frontend stack
Practical experience with GraphQL (schemas, queries, mutations, performance considerations) and at least one GraphQL client
Worked on performance-sensitive or data-heavy products (dashboards, observability, dev tools, ML platforms, real-time UIs)
Use metrics and traces to guide performance work
Care about UX quality such as loading states, error states, keyboard shortcuts, micro-interaction, and express that care through clean abstractions and solid architecture
Energized by education

Job Responsibility

Spend most of your time building rich, performant frontend experiences in React + TypeScript (dashboards, traces, configuration flows, real-time views)
Collaborate with backend engineers on requirements, define API contracts, implement UI, and ship with metrics, logs, and alerts wired up
Design and implement patterns built for scale that work under real data and load
Lead frontend architecture decisions around routing, data fetching, caching, and client-side error handling
Use analytics tools, browser performance profilers, and Core Web Vitals to measure, debug, and continuously improve frontend performance
Build and iterate on visualizations for model performance, agent behavior, and real-time signals by paying attention to rendering performance and perceived latency
Drive UI resilience: robust loading states, optimistic updates where appropriate, pagination / virtualization, retry logic, and graceful degradation
Provide technical leadership: reviewing designs and PRs, mentoring engineers on frontend patterns and performance, and raising the bar on UX quality in code

What we offer

Competitive equity package
Comprehensive benefits package, including medical, dental, vision
401(k) plan
Unlimited paid time off
Generous parental leave plan
Additional support for mental health and wellness
WFH monthly stipend to pay for co-working spaces

Fulltime

Senior Frontend Engineer

As a frontend engineer at Inflection, you will craft intuitive, responsive, and ...

Location

United States , Palo Alto

Salary:

175000.00 - 350000.00 USD / Year

Inflection AI

Expiration Date

Until further notice

Requirements

Have 4+ years of experience building and maintaining production-grade web applications
Are fluent with React, Next.js, TypeScript, and frontend performance debugging tools (e.g., Lighthouse, Chrome DevTools, Web Vitals)
Have shipped interactive UIs from scratch—ideally handling real-time updates, accessibility, and responsive design
Understand trade-offs between UX richness, responsiveness, performance, and maintainability
Have designed systems balancing experimentation and rapid iteration with long-term scalability
Are energized by working in a fast-moving, cross-functional environment with deep technical challenges
Have a bachelor’s degree or equivalent in a related field to the offered position requirements

Job Responsibility

Architect and develop performant, maintainable frontend systems using Next.js, TypeScript, and React
Collaborate with researchers to surface advanced model behaviors—including tool use, RAG, and personalization—through intuitive UX paradigms
Develop and maintain internal UI components and design systems used across multiple product surfaces
Integrate real-time data and analytics pipelines to visualize assistant behavior, model performance, and user feedback
Build developer infrastructure to support fast iteration cycles: hot reloading, component testing, E2E automation, and visual diffing
Partner across the stack with backend and platform teams to ship end-to-end features with minimal latency and maximum reliability
Contribute to a culture of high code quality, continuous improvement, and shared ownership

What we offer

Diverse medical, dental and vision options
401k matching program
Unlimited paid time off
Parental leave and flexibility for all parents and caregivers
Support of country-specific visa needs for international employees living in the Bay Area
Competitive stock options

Senior Frontend Software Engineer

As a Senior Frontend Software Engineer, you will be involved in the entire produ...

Location

Poland; France , Kraków; Tassin-la-Demi-Lune; Paris

Salary:

Not provided

LumApps

Expiration Date

Until further notice

Requirements

5+ Years of Software Engineering Experience: Proven background in frontend development for modern, cloud-based applications
Front-End Mastery: Strong hands-on experience with JavaScript/TypeScript, Webpack or Vite, and modern frameworks such as Vue or React
Vue.js Foundation: Ability to build and maintain Vue.js components and navigate the Vue ecosystem
Excellent Communication: Effective collaboration in cross-functional teams
strong English skills (spoken and written)
Modern Frontend Operations: Familiarity with AWS/GCP environments and containerization tools like Docker and Kubernetes
comfortable with build, test, and deployment tooling for modern web apps
Product Mindset: Understands user needs and business goals
makes technical decisions that improve product value, usability, and overall customer experience
Quality Focus: Committed to code quality, testing, and continuous refactoring to maintain high engineering standards

Job Responsibility

Develop Frontend Features: Design, implement, and maintain end-to-end features using Vue.js and JavaScript/TypeScript
Collaborate Across Teams: Work closely with product managers, designers, and DevOps to plan, build, and deliver customer-focused solutions
Ensure Frontend Reliability & Performance: Write clean, scalable code that meets high standards for performance, security, and reliability
Drive Best Practices: Conduct code reviews, mentor junior engineers, and promote strong testing, documentation, and maintainability practices
Deliver Excellent UX/UI: Build visually polished, intuitive, and highly functional user interfaces that create a seamless user experience
Maintain & Evolve Architecture: Contribute to architecture discussions, influence technical decisions, and help adopt new technologies and frameworks
Project Management: Break down feature requests into well-defined tasks and guide their implementation
Take Ownership: Participate in on-call rotations when needed and take operational responsibility for the services you develop

What we offer

If you are based in France: Hybrid work model – 2 days at the office, 3 days remote
RTT days – ~10 extra days off per year
Meal vouchers (SWILE) + free snacks & coffee
Yoga classes - Take a mindful break in our Paris office
Supportive parental leave and family moments — yes, even a Christmas party for your kids !
Health insurance (ALAN) – 60% covered + full life & disability cover
Afterworks, team celebrations & seasonal parties
Equipment of your choice
French & English lessons, professional development & access to Leeto CSE
If you are based in Poland: Phone & Home Internet costs reimbursement up to 80 PLN/month

Fulltime

Senior Frontend Engineer - Web Experience

Epidemic Sound

Location:
Sweden , Stockholm

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
February 08, 2026

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Senior Frontend Engineer - Web Experience

Epidemic Sound

Location:Sweden , Stockholm

Category:IT - Software Development

Contract Type:Not provided

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Job Description:

Job Responsibility:

Requirements:

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Job Posted:February 08, 2026

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Job Posted:
February 08, 2026