Work with Us

What is Thunderbird? Software made to make email easier.

Thunderbird is a free and open source email, newsfeed, chat, and calendaring client, that’s easy to set up and customize. One of the core principles of Thunderbird is the use and promotion of open standards - this focus is a rejection of our world of closed platforms and services that can’t communicate with each other. We want our users to have freedom and choice in how they communicate.

Open Positions

Director of Operations Full Time / Remote

MZLA Technologies Corporation (MZLA), a new, wholly owned subsidiary of Mozilla Foundation, has created a new Director of Operations position to oversee the business operations of Thunderbird! This role will initially report to the President of the MZLA Board. MZLA is the current organizational home of the Thunderbird project.

The Director of Operations will oversee all of Thunderbird’s financial and administrative activities, including finance, human resources, and contract management. The position will play a key role in business planning and policy development and be a key liaison between the Thunderbird Council, MZLA Board of Directors, as well as its parent, Mozilla Foundation, which provides MZLA with a number of operational services. The Director will be a strategic leader, with significant operational management experience in an earlier stage company, who can both manage day-to-day operational activities and provide key strategic policy and business planning for a growing company. Since we are a global organization, we request flexibility in work hours to allow for more direct collaboration.

Apply for this position via careers.mozilla.org

Key Responsibilities:

Human Resources

Oversee the HR function for Thunderbird, including payroll and benefits, recruitment of new staff, professional development, onboarding, training, and the development and management of staff processes.
In partnership with plan administrators, where appropriate, manage company benefits plans and coordination of the annual open enrollment process.
Help develop new organization policies and procedures and lead all aspects of implementation.
Work with Mozilla Foundation’s HR team to ensure compliance with policies and national, international, and local labor laws in the countries where MZLA engages with people.
Maintain the relationship with the organization’s Professional Employer Organization (PEO).
Oversee procurement and management of contractors.
Support Thunderbird’s coordinated efforts with the Mozilla Foundation to foster diversity, equity, and inclusion.
Serve as liaison between Thunderbird oversight council and staff & contractors.

Finance

Supervise all finance and accounting activities including credit card expenses, payroll and A/P approvals, operating bank accounts, monthly financial reporting and annual and quarterly tax filings.
Monitor and review journal entries from the outsourced third party accounting team.
Be responsible for and lead the annual budgeting and business planning process in partnership with Thunderbird Council.
Monitor actual progress against budget and changes on a monthly basis, and provide monthly financial highlights on performance and trends.
Develop and update annual income statements and cash flow forecasts.
Develop and implement all vital business policies for effective internal control and process improvement.

Other Responsibilities

Support and work with the contracts management team at the Mozilla Foundation on managing and implementing all vendor contracts.
Collaborate with the Mozilla Foundation legal team when contract or organizational legal issues arise.
Team up with the donor care services team at the parent company who process the day-to-day contributions and respond to Thunderbird contributors.
Liaise on operational matters with the Thunderbird Council, including participation in regular Council meetings and collaborating with the Council Treasurer.
Participate in quarterly MZLA Board of Directors meetings and prepare agenda and reports.

Your Professional Profile:

Minimum 10 years of finance and operations experience including a minimum of 5 years of managing human resources and finance functions.
Experienced with and knowledgeable of U.S. GAAP accounting and U.S. corporate tax filing requirements; having worked in a technology, earlier stage company is a plus.
Highly experienced with financial planning including budgeting and forecasting.
Highly proficient with developing budgeting and forecasting models and scenario analyses.
Experienced with business, financial and operational planning with earlier stage companies; having experience in a technology/software product company is a plus.
Excellent interpersonal and communication skills; Ability to translate and distill financial concepts to - and effectively collaborate with - colleagues who do not necessarily have finance backgrounds.
High attention to detail and strong organizational skills.
Technology savvy with experience working with multiple software applications to support operating platforms.
Able to roll up sleeves to solve operational challenges and issues as they arise.
Comfortable with working in a remote operating platform with a globally dispersed team.
Experience with FLOSS and/or non-profit organizations would be considered a plus.

How to Apply

Thunderbird Build & Release Engineer Full Time / Remote

Thunderbird is looking for a multi-skilled self-starter to work on release engineering. You will be reporting to our infra team lead and working in close cooperation with our current release engineer, other staff, and with community members.

This is a remote, full time position. You are expected to have excellent written communication skills and coordinate your work over email, video conferencing, Matrix, and Bugzilla.

As a release engineer you will be serving the community, empowering them to make their contributions available to millions of people worldwide.

What you’ll get to do:

Work with a geographically-distributed development team.
Improve and maintain the continuous integration systems that developers rely on to accelerate productivity.
Develop the build and release systems used to make final builds available to users.
Collaborate with QA, security, localization, and engineering to ship beta and release builds.
Adapt changes made by the Firefox engineering teams for Thunderbird.

We’re looking for someone with:

Solid scripting knowledge (shell, Python).
Dedication to open source and open standards.
Ability to debug build and compile issues.
Familiarity with using distributed version control systems (primarily Mercurial and Git).
Proven track record of finishing projects.
Devops knowledge for cloud based setups (AWS, Linode etc.)
A mission of making a concrete positive impact on the day to day communication experience for tens of millions of users.

Bonus points for:

A working knowledge of C/C++, Rust, and/or Javascript.
Experience with Taskcluster.
Low level system experience on Linux, Windows, and/or Mac.
Experience with legacy build systems such as make, or modern ones such as Bazel, Buck or Blaze.
Previous open source engagement.

How to Apply

Senior Software Engineer Full Time / Remote

The Thunderbird team is looking to hire a hardworking senior software engineer. You will help update our code base and craft new features for this already very popular cross platform email client. We’re committed to moving our code base over to using primarily web technologies, and you’ll have a significant part to play in this effort. Contrary to many opportunities elsewhere, you have the opportunity to directly utilize the most groundbreaking developments in the browser engine.

As an engineer at Thunderbird, you will be working with our existing staff and community members from all over the globe. We are key contributors to open source, allowing you to show your skills to the world both on the code level and as a concrete result in improvements on the product.

This is a remote, full time position. We expect excellent written communication skills so as to foster strong work coordination over email, video conferencing, Matrix, and Bugzilla.

We’re looking for someone with:

Dedication to open source and open standards.
A mission of making a concrete positive impact on the day to day communication experience for tens of millions of users.
Strong understanding of web technologies.
About five years of validated experience developing with JavaScript/HTML/CSS.
Knowledge of C/C++.
Good problem-solving skills.
Familiarity with add-ons and previous open source engagement is a plus.
Experience with calendar systems would be desired, but not a must.

We are an equal opportunity employer and value diversity. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

How to Apply

Software Engineer Full Time / Remote / 2 Available Openings

The Thunderbird team is growing, and we are looking to hire a dedicated and hardworking engineer to work with us on our ongoing maintenance work as well as feature development.

We’re committed to moving our code base over to using primarily web technologies, and you’ll be an important part of this effort. Contrary to many learning opportunities elsewhere, you’ll have the opportunity to utilize the most groundbreaking developments in the browser engine.

As an engineer at Thunderbird, you will work with our existing staff and community members from all over the globe. We are key contributors to open source, allowing you to show your skills to the world both on the code level and as a concrete result in improvements on the product.

This is a remote, full time position. We expect excellent written communication skills so as to foster strong work coordination over email, video conferencing, Matrix, and Bugzilla.

How to Apply

If a position sounds like a good fit for you, please send us your resume with a cover letter to [email protected]. In the subject of the email, please state the title of the position that you’re applying for, e.g. “Application for the Thunderbird Software Engineer position”.

A cover letter is essential to your application! Tell us about why you’re passionate about Thunderbird and this position. Also include samples of your work, either directly or as a link. If you contribute to any open source software, or maintain a blog we’d love to hear about it!

The successful applicant will be hired through MZLA Technologies Corporation. Your work will be directed through the Thunderbird project’s technical manager. By applying for this job, you are agreeing to have your application reviewed by Thunderbird contractors and volunteers who are a part of the hiring committee as well as by staff members at the Mozilla Foundation and companies under its umbrella.

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Thunderbird

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The Future of Thunderbird

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