Front-End Engineer Job at VARTEQ

Senior Software Engineer, Front-End or Full Stack

As a Senior Front-End Software Engineer, you will be working on a state of the a...

Location

United States , Marriott International HQ

Salary:

108300.00 - 190200.00 USD / Year

Marriott Bonvoy

Expiration Date

Until further notice

Requirements

7+ years of professional experience in front-end development
Strong proficiency in React and TypeScript
Solid understanding of web markup, including HTML5 and CSS3
Experience with state management libraries like Redux, Mobx, Zustand
Knowledge of modern front-end build tools and workflows (e.g., Webpack, Vite)
Excellent problem-solving skills and attention to detail
Effective communication and teamwork skills
Experience with monitoring tools like Dynatrace, Splunk, et al.
Proven ability to work in an Agile development environment
Experience with RESTful APIs and asynchronous programming

Job Responsibility

Develop and maintain front-end components and user interfaces using React and TypeScript
Collaborate with cross-functional teams to design and implement user-friendly features for all form factors
Optimize applications for maximum speed and scalability
Ensure the technical feasibility of UI/UX designs
Participate in code reviews to maintain code quality and consistency
Troubleshoot and debug issues as they arise
Stay up-to-date with the latest front-end technologies and best practices
Mentor and provide guidance to junior developers
Communicate effectively with team members, stakeholders, and clients

What we offer

Bonus program
Comprehensive health care benefits
401(k) plan with up to 5% company match
Employee stock purchase plan at 15% discount
Accrued paid time off (including sick leave where applicable)
Life insurance
Group disability insurance
Travel discounts
Adoption assistance
Paid parental leave

Fulltime

Staff Front-end Engineer

We're making the world of digital assets accessible and secure for everyone. Joi...

Location

France , Paris

Salary:

Not provided

Ledger

Expiration Date

Until further notice

Requirements

Engineer profile with at least 5 years of experience in software development
A curious mind with a positive attitude to join a highly collaborative team
Good knowledge of UI/UX practices in software development
Proficient with JavaScript and TypeScript
Strong experience in React.js development, tools and libraries
Good knowledge of testing strategies

Job Responsibility

Own from a technical standpoint the desktop and mobile development of Ledger Live Applications
Collaborate with our devs, QA, designers, and product within Ledger Live teams
Take initiative and offer technical solutions
Develop features using best practices from unit to e2e testing
Participate in code reviews
Be responsible for the quality of Ledger’s UI/UX framework
Mentor and promote tech growth within the team, helping to set high standards for the team
Work 100% on Open Source projects all gathered in our monorepo: ledger-live
Share knowledge within Ledger and beyond

What we offer

Equity: Employees are the foundation of our success, and we award stock options so you can share in that success as we grow
Flexibility: A hybrid work policy
Social: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks
Medical: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage
Well-being: Personal development, coaching & fitness with our dedicated partners
Vacation: Five weeks of paid leave per year, in addition to national holidays and rest & relaxation (RTT) days
High tech: Access to high performance office equipment and gadgets, including Apple products
Transport: Ledger reimburses part of your preferred means of transportation
Discounts: Employee discount on all our products

Fulltime

Staff Front-End Engineer

We are looking for a Staff Front-End Engineer to lead our Design System initiati...

Location

France , Paris

Salary:

Not provided

Ledger

Expiration Date

Until further notice

Requirements

A minimum of 8 years of experience in software development
Significant experience in building and maintaining a library of UI components
Strong proficiency in HTML, CSS, and JavaScript
Extensive knowledge of Web APIs and CSS features, as well as their browser support
Experience with React
Experience with testing frameworks
Familiarity with design tools such as Figma
Expertise in Responsive and Adaptive Design
Experience with version control systems
Awareness of accessibility standards and best practices (a11y)

Job Responsibility

Lead the development, and maintenance of our design system in React and React Native
Define best practices, guidelines, and documentation for UI components, accessibility, and performance
Collaborate with our designers to translate Figma designs into reusable, high-quality components
Ensure consistency across platforms (web & mobile) by establishing a robust design token framework
Advocate for accessibility and ensure compliance with WCAG and other accessibility standards
Mentor engineers and contribute to team growth by providing technical guidance and code reviews

What we offer

Equity
Flexibility: A hybrid work policy
Social: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks
Medical: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage
Well-being: Personal development, coaching & fitness with our dedicated partners
Vacation: Five weeks of paid leave per year, in addition to national holidays and rest & relaxation (RTT) days
High tech: Access to high performance office equipment and gadgets, including Apple products
Transport: Ledger reimburses part of your preferred means of transportation
Discounts: Employee discount on all our products

Fulltime

Staff Front-end Engineer - UI

We’re the forever innovators. On a mission that goes beyond business. Securing d...

Location

France , Paris

Salary:

Not provided

Ledger

Expiration Date

Until further notice

Requirements

Engineer profile with at least 8 years of experience in software development
Strong proficiency in HTML, CSS, and JavaScript
Extensive knowledge of Web APIs and CSS features, as well as their browser support
Experience with React and TypeScript
Good knowledge of testing frameworks
Familiarity with design tools such as Figma
Awareness of accessibility standards and best practices (a11y)

Job Responsibility

Own from a technical standpoint the desktop and mobile development of Ledger Live applications
Collaborate with our designers to translate designs and prototypes into functional and visually appealing user interfaces
Write and maintain unit and integration tests to ensure the reliability of our applications
Participate in code reviews
Be responsible for the quality of Ledger’s UI/UX framework
Mentor and promote tech growth within the team, helping to set high standards for the team
Work 100% on Open Source projects all gathered in our monorepo: ledger-live
Share knowledge within Ledger and beyond

What we offer

Equity: Employees are the foundation of our success, and we award stock options so you can share in that success as we grow
Flexibility: A hybrid work policy
Social: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks
Medical: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage
Well-being: Personal development, coaching & fitness with our dedicated partners
Vacation: Five weeks of paid leave per year, in addition to national holidays and rest & relaxation (RTT) days
High tech: Access to high performance office equipment and gadgets, including Apple products
Transport: Ledger reimburses part of your preferred means of transportation
Discounts: Employee discount on all our products

Fulltime

Senior Front-End Software Engineer

KAYAK is looking for a Senior Frontend Engineer to join our growing frontend tea...

Location

Lithuania , Kaunas

Salary:

3333.00 - 6600.00 EUR / Month

KAYAK

Expiration Date

Until further notice

Requirements

Education in Computer Science or related field
5+ years of experience in Web Development
Solid knowledge and hands-on experience in HTML, CSS, JavaScript, TypeScript and React
Experience with centralised state management tools e.g. Redux
Experience with CSS preprocessors e.g. Sass, Less
Understanding how frontend build tools work and ability to configure them e.g. Webpack, Rollup
Experience writing unit and E2E tests
Fluency in English
Ability to thrive in a hybrid working model, working at least three office days per week

Job Responsibility

Engage in collaborative product development with global teams
Participate in planning and execution of new features
Design and implement innovative, high-performing and scalable frontend solutions
Maintain and enhance existing code
Maintain existing and develop new solutions for automation: unit, integration, E2E testing

What we offer

Work from (almost) anywhere for up to 20 days per year
Funds for your career growth
Access to thousands of on-demand e-learnings
Generous additional Health Insurance
Flexible sick time off
Additional financial support for your sick leave
Additional day off on your birthday
Company-wide vacation week once a year (winter holidays)
Additional financial support during parental leave
Free lunch twice a week and daily snacks at the office

Fulltime

Front-End Engineering Intern

KAYAK is seeking software engineering interns who are eager to tackle exciting p...

Location

Lithuania , Kaunas

Salary:

1038.00 EUR / Month

KAYAK

Expiration Date

Until further notice

Requirements

Are pursuing a degree in Computer Science or have hands on experience in software projects
Can perform with proven programming fundamentals
Have hands-on experience with HTML, JavaScript, CSS and React
Can communicate fluently in English
Have a genuine passion for code quality and testing
Have strong analytical approach
Have high energy, willingness to learn and are not afraid to ask questions
Are able to attend the office in Kaunas

Job Responsibility

Engage in collaborative product development with global teams, refining your programming skills along the way
Innovate and enhance features under expert mentorship, unlocking your full potential
Swiftly troubleshoot issues with the guidance of experienced professionals, driving impactful results
Experience a transformative journey of growth with our dedicated team, evolving into a proficient engineer ready to thrive in the tech industry

What we offer

Flexible sick time off
Additional financial support for your sick leave
Additional day off on your birthday
Company-wide vacation week once a year (winter holidays)
Free lunch twice a week and daily snacks at the office
Free yoga twice a week
Paid volunteering time
No meeting Fridays
Office and team events such as summer camp, KAYAK birthday, winter party and more!
Company-paid therapy sessions through SpringHealth

Fulltime

Senior Front-end Engineer

We're making the world of digital assets accessible and secure for everyone. Joi...

Location

France , Paris

Salary:

Not provided

Ledger

Expiration Date

Until further notice

Requirements

Engineer profile with at least 5 years of experience in software development
Good knowledge of UI/UX practices in software development
Proficient with JavaScript and TypeScript
Strong experience in React.js development, tools and libraries
Good knowledge of testing strategies

Job Responsibility

Own from a technical standpoint the desktop and mobile development of Ledger Live Applications
Collaborate with our devs, QA, designers, and product within Ledger Live teams
Take initiative and offer technical solutions
Develop features using best practices from unit to e2e testing
Participate in code reviews
Be responsible for the quality of Ledger’s UI/UX framework
Mentor and promote tech growth within the team, helping to set high standards for the team
Work 100% on Open Source projects all gathered in our monorepo: ledger-live
Share knowledge within Ledger and beyond

What we offer

Equity: Employees are the foundation of our success, and we award stock options so you can share in that success as we grow
Flexibility: A hybrid work policy
Social: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks
Medical: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage
Well-being: Personal development, coaching & fitness with our dedicated partners
Vacation: Five weeks of paid leave per year, in addition to national holidays and rest & relaxation (RTT) days
High tech: Access to high performance office equipment and gadgets, including Apple products
Transport: Ledger reimburses part of your preferred means of transportation
Discounts: Employee discount on all our products

Fulltime

Staff Front-end Engineer

We are looking for a Staff Front-End Engineer to work on our Design System initi...

Location

France , Paris

Salary:

Not provided

Ledger

Expiration Date

Until further notice

Requirements

A minimum of 8 years of experience in software development
Significant experience in building and maintaining a library of UI components
Strong proficiency in HTML, CSS, and JavaScript
Extensive knowledge of Web APIs and CSS features, as well as their browser support
Experience with React
Experience with testing frameworks
Familiarity with design tools such as Figma
Expertise in Responsive and Adaptive Design
Experience with version control systems
Awareness of accessibility standards and best practices (a11y)

Job Responsibility

Develop and maintain, and maintenance of our design system in React and React Native
Help define best practices, guidelines, and documentation for UI components, accessibility, and performance
Collaborate with our designers to translate Figma designs into reusable, high-quality components
Ensure consistency across platforms (web & mobile) by establishing a robust design token framework
Advocate for accessibility and ensure compliance with WCAG and other accessibility standards
Mentor engineers and contribute to team growth by providing technical guidance and code reviews.

What we offer

Equity: Employees are the foundation of our success, and we award stock options so you can share in that success as we grow.
Flexibility: A hybrid work policy.
Social: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks.
Medical: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage.
Well-being: Personal development, coaching & fitness with our dedicated partners.
Vacation: Five weeks of paid leave per year, in addition to national holidays and rest & relaxation (RTT) days.
High tech: Access to high performance office equipment and gadgets, including Apple products.
Transport: Ledger reimburses part of your preferred means of transportation.
Discounts: Employee discount on all our products.

Fulltime

Front-End Engineer

VARTEQ

Location:
United States

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
March 20, 2026

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