Senior Front End Engineer
$137k - $183kGrabJobs
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: The Firefox team is a community of engineers who care deeply about delivering the fastest, friendliest, most usable browser possible. We are responsible for making the things you see in the browser work securely, quickly, and well! Our team is geographically-distributed, and working in the open is the norm. We contribute to the code driving the Firefox browser on a number of desktop platforms - Windows, Linux, and macOS. Our focus is on implementing and fixing things in Firefox as well as helping other teams make it excellent for our users. Do you enjoy making people delighted with solutions to their problems? Do you like to collaborate with designers to implement new interfaces? Are you interested in learning how to write performant, secure code, and deliver it to hundreds of millions of people? If so, we’d love to hear from you. What’s a Senior Software Engineer at Mozilla? A Senior Software Engineer is the next level from a Software Engineer. At Mozilla, this role can vary, but is typically someone who is largely self directed after work is assigned and is advanced in their domain. They help team members get information they need to be successful while also being the go-to person for peer reviews in their domain. They have a solid understanding of the product strategy and can recommend solutions to critical issues when needed, assist junior engineers in risk management and escalation, and advocate for and implement changes that affect their team. A Senior Software Engineer actively seeks opinions and ideas from their team members, including those with varied experiences and perspectives to improve more collective results. What you’ll do: Build high quality user interfaces for Firefox with accessibility and usability in mind Write code and tests, build prototypes, tackle problems with no clear solution, collaborate with other designers and engineers to make the web a better place Learn about a wide variety of problems and solutions across a large, mature codebase Work with cross functional teams, building relationships and fostering collaboration to reach shared goals Help to level-up the skills of your fellow engineers through code reviews, giving talks, and/or writing documentation Promote and maintain high standards of code-quality, focusing on performance, testing, security, usability, accessibility and maintainability Work with driven, committed team members to bring the open web to people around the world Contribute to improving engineering practices and procedures What you’ll bring: 4+ years experience as a software engineer You have a background in shipping high quality software 3+ years working experience with JavaScript, HTML, and CSS Interest in and ability to work with a distributed team (requires good asynchronous written communication skills as well as good verbal communication skills) Happy to provide and receive constructive feedback Will contribute by asking questions and proposing new ideas A love of working with others collaboratively Commitment to our values: Welcoming differences Being relationship-minded Practicing responsible participation Having grit What you’ll get: Generous performance-based bonus plans to all eligible employees - we share in our success as one team Rich medical, dental, and vision coverage Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) Quarterly all-company wellness days where everyone takes a pause together Country specific holidays plus a day off for your birthday One-time home office stipend Annual professional development budget Quarterly well-being stipend Considerable paid parental leave Employee referral bonus program Other benefits (life/AD&D, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientation s, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at View email address on click.appcast.io to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: D #LI-REMOTE Req ID: R3135 Hiring Ranges: US Tier 1 Locations $137,000 - $183,000 USD US Tier 2 Locations $126,000 - $168,000 USD US Tier 3 Locations $116,000 - $155,000 USD
$113.2k - $237.8k
Job Title: Senior UI Application EngineerJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with... ...: None* * *The OpportunityJoin our team as an Application Engineer (UI) supporting the Secure the Enterprise initiative. In this role...SeniorContract workWork experience placementFlexible hours$225k - $235k
...and Responsibilities: The Application Engineer (UI) will provide the development, testing... ...or higher which will interact with ReST end points to make requests, receive formatted... ..., in various details, the data to UI front ends. The Application Engineer will focus...SeniorFull timeImmediate startRemote workShift work- ...Northrop Grumman Corp. (AU) is seeking a Sr. Principal Systems Engineer (Comms) in Linthicum, MD for 100% on-site work. Travel up to 10%... ...external stakeholders, developing technology roadmaps, and mentoring junior engineers while ensuring end-to-end system #J-18808-Ljbffr...SeniorRelocation package
- ...warfighters and federal agencies with technology and systems engineered to connect, protect, and prepare individuals and teams for... ...customers worldwide. Position OverviewWe are seeking an elite Front-End Senior Software Developer to help power next-generation cyber range...SeniorWorldwide
- ...users across 5 continents. Come join our team! TrackOFF is looking to bring on the newest addition to our team - a rockstar Front End Engineer. Responsible for producing best-in-class web-based assets (websites, landing pages, checkout carts, etc.) to take our online...SuggestedFull timeSummer workWork at officeVisa sponsorship
- ...Below are the qualifications and skills that are expected: Bachelor’s degree in computer science, engineering, or a related technical field. Strong knowledge of front-end web programming languages. Bootstrap SASS Grunt/Yarn Excellent knowledge and commercial experience...SeniorLocal areaRemote workFlexible hours
$121k - $206k
...that matter to you. Role SummaryYou’ll join a team of experienced engineers working on systems that matter—technology that helps investment... ...patterns, and AWS or similar cloud technologiesTake end-to-end ownership of applications and services, including development...SeniorFull timeLocal areaRemote work3 days per week- ...financial market actors, and government agencies. We are looking for an experienced engineer to join our technical team and help shape our product trajectory. The Role We are looking for a Senior Full-Stack Engineer who embraces AI agents to supercharge their workflows....SeniorPermanent employmentWork at officeRemote work
$170k - $200k
...Senior Full Stack Engineer Hiring Only in CA, TX, and FL; Position is fully remote Salary Range: $170k - $200k Company Overview Work Truck Solutions is the operating system for the commercial vehicle industry. While the retail auto market is saturated with software, the...SeniorH1bRemote workVisa sponsorshipMonday to FridayFlexible hours$112.2k - $168.2k
...superior situational awareness and understanding to protect the U.S. and its global allies.We’re looking for you to join our team as a Senior Principal Program Cost Control Analyst based out of our Linthicum, MD area offices. This is an onsite position that offers the 9/80...SeniorFull timeContract workRelocationShift work$149.3k - $223.9k
...resources, support, and team to do some of the best work of your career.We are looking for you to join our team as a Senior Principal Digital Hardware Engineer based out of Baltimore/Linthicum, MD.The Senior Principal Digital Hardware Engineer is a core member of the...SeniorFull timeRelocationShift work$170k - $180k
...employees to live their healthiest lives. Vida Health is seeking a Senior Full Stack Engineer to help shape the technical direction of our Provider Team.... ..., Design, QA, and business stakeholders. Own features end-to-end. Break down large initiatives into actionable...SeniorLocal areaRemote workVisa sponsorshipWork visa$89.9k - $134.9k
...Defining Possible from the day you start. Northrop Grumman is currently seeking a Contracts Administrator - Level 3 (Principal) or 4 (Senior Principal), to join our team in Linthicum, MD. This individual contributor position is 100% onsite and cannot accommodate...SeniorFull timeContract workRemote workRelocationShift work- ...Senior Full Stack Developer Temporarily WFH due to COVID-19 | Baltimore, MD OR Fairfax,... ...Full stack development across the back-end, client side, and UI. Engage with architects... ...database, server side development, front-end development and CI/CD integration. ~...SeniorRemote workWork from home
$108.8k - $163.2k
...support, and team to do some of the best work of your career.We are looking for you to join our team as a Principal/Senior Principal Thermal Analysis Engineer based out of Linthicum, MD.This position may be filled as a Principal Thermal Analysis Engineer or a Senior...SeniorFull timeRelocation packageShift work$135.8k - $203.6k
...are not only part of history, they're making history.Northrop Grumman Mission System’s Engineering and Sciences (E&S) Baltimore and Partnered Sites (BaPs) Division is seeking a Senior Principal Engineering Program Manager (EPM) to join our team of qualified and diverse...SeniorFull timeContract workRelocation packageShift work$117.5k - $176.3k
...understanding to protect the U.S. and its global allies.Northrop Grumman Mission Systems is looking for you to join our team as a Senior Principal Contract Administrator supporting the Marine Systems division. The preferred location for this on-site position is Sunnyvale...SeniorFull timeContract workRelocationShift work$143.91k
Agency: Social Security AdministrationDepartment: Other Agencies and Independent OrganizationsSub agency: Chief Information Officer (CIO)Salary: Starting at $143,913 Per year (GS 14-15)Dates: Open 04/16/2026 to 10/13/2026Schedule: Flextime and Alternate Work Schedules are...Senior$108.8k - $163.2k
...only part of history, they're making history.Northrop Grumman Mission System’s Engineering and Sciences (E&S) Baltimore and Partnered Sites (BaPs) Division is seeking a Principal / Senior Principal CORE Systems Engineer to join our team of qualified and diverse individuals...SeniorFull timeContract workRelocation packageShift work$108.8k - $163.2k
...support, and team to do some of the best work of your career.We are looking for you to join our team as a Principal/ Senior Principal BIT Systems Engineer based out of Linthicum, MD and will require 100% on-site work.What You’ll get to Do:As a lead Built-In-Test (BIT)...SeniorFull timeRelocation packageShift work$98.9k - $148.3k
...career.We are looking for you to join our team as a Principal/Senior Principal Board Designer based out of Baltimore, MD.This role may... .... You will work closely with schematic designers, hardware engineers, mechanical designers, and the manufacturing team to translate...SeniorFull timeRelocationFlexible hoursShift work$108.8k - $163.2k
...support, and team to do some of the best work of your career.We are looking for you to join our team as a Principal / Senior Principal Structural Engineer based out of Linthicum, MD.This position is a part of our Structures Analysis team within the Hardware Engineering...SeniorFull timeContract workWork at officeRelocation packageShift work$135.8k - $203.6k
..., and team to do some of the best work of your career. The Advanced EOIR team anticipates a near-term need for a Senior Principal Systems Engineer to work as a deputy technical lead for technical concepts and algorithm development work related to advanced electro-optical...SeniorRelocation packageShift work$108.8k - $163.2k
...and team to do some of the best work of your career.We are looking for you to join our team as a Principal or Senior Principal Electronics Durability Engineer based out of Linthicum, MD.What You’ll Get to Do: The durability analysis team supports programs across the sector...SeniorFull timeRelocationShift work$119.6k - $179.4k
...the resources, support, and team to do some of the best work of your career.We are looking for a Principal / Senior Principal Embedded Systems Security Engineer to join our team in Baltimore, MD. This position requires 100% onsite work.What You Will Get to Do: As an integral...SeniorFull timeContract workRelocation packageShift work$108.8k - $163.2k
...employees are not only part of history, they're making history.The Engineering and Sciences organization (E&S) pushes the boundaries of... ...requisition may be filled as a Principal Systems Engineer or a Senior Principal Systems Engineer.This position is contingent upon the...SeniorFull timeRelocation packageShift work$135.8k - $203.6k
...Grumman Mission Systems has an opening for Sr. Principal Systems Engineer (Comms) to join our organization. Our organization within... ...COMMS activities with adjacent systems and technologies to ensure end-to-end solution coherence.Lead and/or support technical trades,...SeniorFull timeRelocation packageShift work$108.8k - $163.2k
..., and team to do some of the best work of your career.Northrop Grumman Mission Systems is seeking aPrincipal/Senior Principal Electromechanical Design Engineer to join our team of qualified, diverse individuals. This position will be located in Linthicum, Maryland and...SeniorFull timeContract workRelocation packageShift work$98.9k - $148.3k
...support, and team to do some of the best work of your career.We are looking for you to join our team as a Principal Mechanical Engineer or Senior Principal Mechanical Engineer based out of Baltimore, MD.This role may be filled at the Principal or Senior Principal level....SeniorFull timeContract workRelocation packageShift work$108.8k - $163.2k
...impossible. Our employees are not only part of history, they're making history.We are looking for a Principal / Senior Principal Mission EngineeringSystems Engineer to join our team in Baltimore, MD. This position requires 100% on-site work.What You Will Get to Do: As an...SeniorFull timeContract workRelocation packageShift work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Front End Engineer. Be the first to apply!
- junior front end developer remote Baltimore, MD
- entry level front end web developer Baltimore, MD
- entry level front end developer remote Baltimore, MD
- front end developer internship remote Baltimore, MD
- front end web developer part time Baltimore, MD
- remote front end web developer Baltimore, MD
- senior business analyst Baltimore, MD
- senior manager tax Baltimore, MD
- senior devops Baltimore, MD
- senior paralegal Baltimore, MD



