CrawlJobs Logo

Staff Engineer, Front End (Desktop)

mozilla.org Logo

Mozilla

Location Icon

Location:

Category Icon
Category:
IT - Software Development

Job Type Icon

Contract Type:
Not provided

Salary Icon

Salary:

150000.00 - 175000.00 USD / Year
Save Job
Save Icon
Apply Position

Job Description:

As a Staff Software Engineer, Front-End, you’ll serve as a domain expert who deeply understands the complexities of shaping seamless, user-focused interfaces and delivering high-quality front-end solutions that align with product strategy. You’ll join a team of talented front- and back-end engineers who bring deep expertise to the development and maintenance of our flagship desktop application, cherished by millions of users worldwide for over 20 years. You’ll work closely with engineers and cross-functional partners to tackle ambiguous problems in user experience, performance optimization, and architectural design. You’ll play a vital part in translating strategy into action by influencing technical direction, mentoring engineers at multiple levels, and ensuring that technical decisions align with MZLA’s mission and the objectives of the Thunderbird Project, particularly in delivering exceptional user experiences.

Job Responsibility:

  • Lead complex, ambiguous technical initiatives requiring cross-team and cross-organization coordination
  • Own and deliver projects spanning new features, code quality improvements, tooling, and process optimization
  • Partner with senior engineers and product managers to define and execute technical strategy, reduce technical debt, and improve long-term maintainability
  • Collaborate closely with UX Engineers to ensure accessibility and usability are built in from the start (WCAG, ARIA)
  • Establish and promote scalable front-end architecture through shared frameworks and guidelines
  • Write high-quality, testable, and maintainable code
  • contribute to code reviews, testing, regression triage, and patch integration
  • Mentor and support engineers across the team, fostering a culture of learning and continuous improvement

Requirements:

  • 10+ years of experience in front-end software development, building scalable, maintainable, and user-focused systems
  • Extensive knowledge of modern vanilla JavaScript concepts (module patterns, async and promises, custom elements and shadow DOM), and up to date knowledge with the most recent ECMAScript specification
  • Strong command of modern JavaScript frameworks such as React, Vue, or similar, and experience transitioning legacy codebases to new technologies
  • Deep knowledge of HTML5 structures and advanced accessibility patterns
  • Deep knowledge of modern CSS patterns and methods
  • In-depth understanding of system architecture, design patterns, and software engineering best practices, with a focus on performance, scalability, and maintainability
  • Proven ability to act as a technical lead and mentor, providing guidance on complex technical problems and supporting the growth of other engineers
  • Experience developing and testing applications across multiple platforms (Windows, macOS, and Linux), with expertise in Git or Mercurial and modern version control workflows
  • Excellent communication and documentation skills, a collaborative approach to cross-functional work
  • A strong commitment to continuous learning and improvement

Nice to have:

  • Experience contributing to or leading open-source projects
  • Experience with Python or other programming languages
  • Ability to engage with and support a global community of developers, including managing feedback and fostering an inclusive and productive ecosystem
  • Proficiency in French, German, Japanese, or another language in addition to English
What we offer:
  • Fully remote work & schedule flexibility
  • Latest Laptop
  • Discretionary Annual Bonus Program
  • Monthly Remote Work Stipend
  • Annual Professional Development Stipend
  • Access to Udemy Learning Platform
  • Industry Conferences
  • Company All Hands
  • 24 days PTO per year (prorated)
  • Your Birthday
  • Year-end Company Shutdown
  • 9 Wellbeing Days
  • Public Holidays
  • Other Paid Leave
  • Quarterly Wellbeing Stipend for Personal / Family Activities
  • 401(k) / RRSP/ Pension Contributions
  • Health, Dental, & Vision Insurance
  • Disability Insurance
  • Life Insurance
  • Employee Assistance Program
  • Paid Parental Leave
  • Paid Sick Days

Additional Information:

Job Posted:
February 18, 2026

Employment Type:
Fulltime
Work Type:
Remote work
Icon
Mozilla - All Job Offers
Job Link Share:
Copy Link Icon
Facebook Icon Twitter Icon LinkedIn Icon

Looking for more opportunities? Search for other job offers that match your skills and interests.

Briefcase Icon

Similar Jobs for Staff Engineer, Front End (Desktop)

Staff Front-end Engineer

We're making the world of digital assets accessible and secure for everyone. Joi...
Location
Location
France , Paris
Salary
Salary:
Not provided
https://www.ledger.com Logo
Ledger
Expiration Date
Until further notice
Flip Icon
Requirements
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
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
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
Read More
Arrow Right

Staff Front-end Engineer - UI

We’re the forever innovators. On a mission that goes beyond business. Securing d...
Location
Location
France , Paris
Salary
Salary:
Not provided
https://www.ledger.com Logo
Ledger
Expiration Date
Until further notice
Flip Icon
Requirements
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
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
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
Read More
Arrow Right

Staff Front-end Engineer

Ledger is hiring a Staff Front-end Engineer to work on the Ledger Live applicati...
Location
Location
France , Paris
Salary
Salary:
Not provided
https://www.ledger.com Logo
Ledger
Expiration Date
Until further notice
Flip Icon
Requirements
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
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
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
Read More
Arrow Right

Staff Front-end Engineer

Ledger is looking for a Staff Front-End Engineer to join its Wallet Experience t...
Location
Location
France , Paris
Salary
Salary:
Not provided
https://www.ledger.com Logo
Ledger
Expiration Date
Until further notice
Flip Icon
Requirements
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
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
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
Read More
Arrow Right

Staff Full Stack Engineer

We are looking for an experienced Staff Engineer (Vue/Laravel/Typescript) to joi...
Location
Location
Italy , Milan
Salary
Salary:
Not provided
weroad.it Logo
WeRoad
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven experience in autonomously managing and delivering projects, stakeholders and other team members to guarantee cooperation, communication and alignment
  • Fully autonomous in managing project requirements, implementation and delivery of backend/frontend solutions
  • Outcome and product driven mindset in your solution
  • Experience in tech leadership, know when to delegate, when to manage, and when to lead
  • Experience in delivery management and Agile practices
  • Experience in working with Product and Design on finding optimal solutions to business requirements
  • Familiar and advocate in using AI in your development workflow with AI IDEs (Cursor/Copilot) and CLIs (Claude Code CLI or Gemini CLI)
  • Technological Experience with: SEO and UI/UX on mobile and desktop applications
  • Vue / Nuxt (or React) and Typescript
  • PHP & Laravel
Job Responsibility
Job Responsibility
  • Support the PMs, EM and the team and in developing front-end and backend solutions (end user-facing and administrative user-facing) according to UX/UI designs, guaranteeing quality and scalability
  • Help the team identify front-end and back-end architectural solutions based on business logic and requirements, managing the Technical Complexity
  • Help us maximize the user experience and quality of our product (you’ll work on our coolest website and CMS)
  • Communicate and Collaborate with the Leadership Team, leveraging your Network to maximize the team Impact
What we offer
What we offer
  • Performance-based bonus – An discretionary annual variable bonus, and based on performance and company results
  • A free WeRoad trip every year – Choose your dream destination with €1,200/year travel discount or travel even more as a Travel Coordinator
  • Unlimited holiday – You are a master of your own time
  • Opportunities to learn – We invest in your growth with training and learning opportunities
  • New parent support – €3,600/year for 3 years after birth or adoption (or prorated if your child is under 3 when you start at WeRoad)
  • Extra benefits – Meal vouchers (€8/day – when applicable), a €1,000 bonus for your wedding or civil union, and one-off bonus when you hit 5 years with us
  • Fun – A vibrant co-working space, team buildings and meet-ups
  • Fulltime
Read More
Arrow Right
New

Staff Engineer, Front End (Desktop)

As a Staff Software Engineer, Front-End, you’ll serve as a domain expert who dee...
Location
Location
Salary
Salary:
150000.00 - 175000.00 USD / Year
mozilla.org Logo
Mozilla
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 10+ years of experience in front-end software development, building scalable, maintainable, and user-focused systems
  • Extensive knowledge of modern vanilla JavaScript concepts (module patterns, async and promises, custom elements and shadow DOM), and up to date knowledge with the most recent ECMAScript specification
  • Strong command of modern JavaScript frameworks such as React, Vue, or similar, and experience transitioning legacy codebases to new technologies
  • Deep knowledge of HTML5 structures and advanced accessibility patterns and Deep knowledge of modern CSS patterns and methods
  • In-depth understanding of system architecture, design patterns, and software engineering best practices, with a focus on performance, scalability, and maintainability
  • Proven ability to act as a technical lead and mentor, providing guidance on complex technical problems and supporting the growth of other engineers
  • Experience developing and testing applications across multiple platforms (Windows, macOS, and Linux), with expertise in Git or Mercurial and modern version control workflows
  • Excellent communication and documentation skills, a collaborative approach to cross-functional work
  • A strong commitment to continuous learning and improvement
Job Responsibility
Job Responsibility
  • Lead complex, ambiguous technical initiatives requiring cross-team and cross-organization coordination
  • Own and deliver projects spanning new features, code quality improvements, tooling, and process optimization
  • Partner with senior engineers and product managers to define and execute technical strategy, reduce technical debt, and improve long-term maintainability
  • Collaborate closely with UX Engineers to ensure accessibility and usability are built in from the start (WCAG, ARIA)
  • Establish and promote scalable front-end architecture through shared frameworks and guidelines
  • Write high-quality, testable, and maintainable code
  • contribute to code reviews, testing, regression triage, and patch integration
  • Mentor and support engineers across the team, fostering a culture of learning and continuous improvement
What we offer
What we offer
  • Fully remote work & schedule flexibility
  • Latest Laptop
  • Discretionary Annual Bonus Program
  • Monthly Remote Work Stipend
  • Annual Professional Development Stipend
  • Access to Udemy Learning Platform
  • Industry Conferences
  • Company All Hands
  • 24 days PTO per year (prorated)
  • Your Birthday
  • Fulltime
Read More
Arrow Right

Staff Software Engineer

We are looking for an experienced Staff Engineer (Vue/Laravel/Typescript) to joi...
Location
Location
Italy , Milan
Salary
Salary:
55000.00 - 70000.00 EUR / Year
weroad.it Logo
WeRoad
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven experience in autonomously managing and delivering projects, stakeholders and other team members to guarantee cooperation, communication and alignment
  • Fully autonomous in managing project requirements, implementation and delivery of backend/frontend solutions
  • Outcome and product driven mindset in your solution
  • Experience in tech leadership, know when to delegate, when to manage, and when to lead
  • Experience in delivery management and Agile practices
  • Experience in working with Product and Design on finding optimal solutions to business requirements
  • Familiar and advocate in using AI in your development workflow with AI IDEs (Cursor/Copilot) and CLIs (Claude Code CLI or Gemini CLI)
  • Technological Experience with: SEO and UI/UX on mobile and desktop applications
  • Vue / Nuxt (or React) and Typescript
  • PHP & Laravel
Job Responsibility
Job Responsibility
  • Support the PMs, EM and the team and in developing front-end and backend solutions (end user-facing and administrative user-facing) according to UX/UI designs, guaranteeing quality and scalability
  • Help the team identify front-end and back-end architectural solutions based on business logic and requirements, managing the Technical Complexity
  • Help us maximize the user experience and quality of our product (you’ll work on our coolest website and CMS)
  • Communicate and Collaborate with the Leadership Team, leveraging your Network to maximize the team Impact
What we offer
What we offer
  • Performance-based bonus – An discretionary annual variable bonus, and based on performance and company results
  • A free WeRoad trip every year – Choose your dream destination with €1,200/year travel discount or travel even more as a Travel Coordinator
  • Trust-based holidays – We believe performance is driven by impact, not by hours at a desk. You are encouraged to take the time you need to recharge, beyond contractual minimums, within shared guidelines
  • Opportunities to learn – We invest in your growth with training and learning opportunities
  • New parent support – €3,600/year for 3 years after birth or adoption (or prorated if your child is under 3 when you start at WeRoad)
  • Extra benefits – Meal vouchers (€8/day – when applicable), a €1,000 bonus for your wedding or civil union, and one-off bonus when you hit 5 years with us
  • Fun – A vibrant co-working space, team buildings and meet-ups
  • Fulltime
Read More
Arrow Right

Applications Development Senior Group Manager

This role will be part of the Risk Data team and is a senior management level po...
Location
Location
United Kingdom , London
Salary
Salary:
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Strong academic record, ideally with a Bachelor’s or Master’s degree in Computer Science or engineering or related technical discipline
  • Proven experience in enterprise application development with full stack technologies
  • Strong Architect and hands on technical experience in implementing large volume real time complex solutions in Big Data Platforms & Public Cloud platforms
  • Experience in Data architecture, strong Software development fundamentals, data structures, design patterns, object-oriented principles
  • Experience in design and delivery of multi-tiered applications and high performance server side components
  • Skills on system performance tuning, high performance, low latency, multithreading and experience with Java server side programming
  • Preferred experience in Handling high volumes of data and working with In-memory databases and Caching solutions
  • Experience of building and leading teams, ideally with a global resource profile and demonstrated ability to deliver large projects efficiently and on time
  • Significant experience in large Financial Services Technology services companies is expected for this position
  • Hands-on development, architecture and leadership experience in real-time data engineering platforms implementation
Job Responsibility
Job Responsibility
  • Lead the efforts in Institutional Data Platform (ICG) that span multiple businesses, products and functions
  • Delivery of Price Risk related Data initiatives and Capital reporting (GSIB) related deliverables
  • Establish strong relationships with the global business stakeholders and ensure transparency of project deliveries
  • Actively identify and manage risks and issues, working with disparate teams to create mitigation plans and follow-through to resolution
  • Adhere to all key Project Management (PMQC) & Engineering Excellence standards
  • Ensure timely communications to Senior Technology Management and Business Partners in Front Office, Middle Office & other Operations functions
  • Drive the design and development of system architecture, work with end-users of the systems, and enhance the quality of deliverables
  • Ensure staff follows Citi documented policy and procedures as well as maintain desktop procedures and supporting documentation for filings on a current basis and in comprehensive manner
  • Ensure change is managed with appropriate controls, documentation, and approvals including implementation of new and revised regulatory reporting requirements
  • Manage and maintain all disaster recovery plans, oversee appropriate testing, and provide permit-to-operate for new applications
What we offer
What we offer
  • 27 days annual leave (plus bank holidays)
  • A discretional annual performance related bonus
  • Private Medical Care & Life Insurance
  • Employee Assistance Program
  • Pension Plan
  • Paid Parental Leave
  • Special discounts for employees, family, and friends
  • Access to an array of learning and development resources
  • Fulltime
Read More
Arrow Right
Jobs by Category
Art and Entertainment Jobs Banking Jobs Call Center Jobs Construction Jobs Consulting Jobs Customer Service Jobs Education Jobs Energy Jobs Finance Jobs Gastronomy Jobs Health and Beauty Jobs Hospitality and Tourism Jobs Human Resources Jobs Insurance Jobs IT - Administration Jobs IT - Software Development Jobs Legal Jobs Logistics Jobs Manufacturing Jobs Marketing, Digital Marketing, SEO, SEM Jobs Media Jobs Nursing Jobs Office Administration Jobs Pharmacy Jobs Physical Work Jobs Public Relations Jobs Public Sector Jobs Purchasing Jobs Quality Control Jobs Real Estate Jobs Research and Development Jobs Sales Jobs
Job Positions Jobs by Country
United States Jobs United Kingdom Jobs India Jobs Canada Jobs Australia Jobs Germany Jobs Ireland Jobs Poland Jobs
Company
Blog About Us Contact
Follow Us
Facebook
X (Twitter)
LinkedIn
Instagram
CrawlJobs Group
ITFlashcards AllDevBlogs
© 2026 CrawlJobs Ltd. All Rights Reserved
Terms & Conditions Privacy Policy