Senior Back-End Engineer - Ruby and Ruby on Rails (RoR)

2 Weeks ago • 3 Years +

About the job

SummaryBy Outscal

Senior Back-End Engineer with 3+ years of Ruby and Ruby on Rails experience. Strong knowledge of relational databases, Sidekiq, RSpec, and Git. Must be able to write efficient algorithms and clean code. Bonus points for Golang, Python, and Kubernetes.

To learn the Hiring Ranges for this position, please select your location from the Apply Now dropdown menu.

To learn more about our Hiring Range System, please click this link.

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, and Pocket, a service for keeping up with the best content online. 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:

Fakespot is now part of Mozilla, where our mission to bring trust and transparency back to the eCommerce space is now aligned with ensuring the Internet is a global resource, open and accessible to all. Fakespot leverages machine learning and other state-of-the-art technologies to automatically filter out spurious reviews of products and vendors so consumers can make informed purchasing decisions based on real feedback by real people. We are looking for a senior-level engineer to join the Fakespot team within Mozilla. 

What you’ll do: 

  • Creating robust, scalable, highly loaded applications
  • Maintaining and troubleshooting existing applications
  • Identifying and fixing bottlenecks and bugs
  • Maintaining and expanding APIs

What you’ll bring: 

  • Minimum 3 years of professional work experience with Ruby and Ruby on Rails
  • Excellent learning ability
  • Ability to write efficient algorithms, and clean code
  • Good knowledge of relational databases such as PostgreSQL and MySQL
  • Experience working with Sidekiq, RSpec and other common RoR libraries
  • Working knowledge of Git, Docker
  • Good knowledge of full stack web development
  • Commitment to our values:
    • Welcoming differences
    • Being relationship-minded
    • Practicing responsible participation
    • Having grit

Bonus Points for…

  • Golang, Python, Kubernetes deployments
  • Working with high traffic systems
  • Background processing experience

What you’ll get:

  • Generous performance-based bonus plans to all regular 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 orientations, 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 hiringaccommodation@mozilla.com 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-DNI

Req ID: R2563

Similar Jobs

ByteDance - Bytedance, Back-end Engineer, Graduate Dubai 2025

Dubai, United Arab Emirates (On-Site)

MatchGroup - Web Front-end Engineer

Tokyo, Japan (Hybrid)

MatchGroup - Back-end Engineer

Tokyo, Japan (Hybrid)

PublicisGroupe - Senior Front End Engineer

Ciudad De México, Mexico (Remote)

PublicisGroupe - Front-End Engineer

Manuel López Cotilla 812, Ciudad De México, Cdmx, Mexico (Remote)

Aera Technology - Senior Front End Engineer

Cluj County, Romania (Hybrid)

edgemony - Back End Engineer - JAVA

Sicily, Italy (Remote)

PublicisGroupe - Back-End Engineer

Co Bogota Calle 93b, Bogota, Colombia (Remote)

Similar Skill Jobs

PlayStation Global - Senior Programmer

England, United Kingdom (On-Site)

PlayStation Global - Principal Programmer - 12 month contract

England, United Kingdom (On-Site)

PlayStation Global - Lead Programmer

England, United Kingdom (Hybrid)

Keywords Studios (Player Support) - Management Accountant

Silesian Voivodeship, Poland (Hybrid)

Hoyoverse - CRM Intern (6-month)

Singapore (On-Site)

Metacore - Build Engineer

Uusimaa, Finland (Hybrid)

Metacore - Art Producer

Uusimaa, Finland (Hybrid)

GoReel - JavaScript Game Developer

Bratislava Region, Slovakia (Remote)

Moonbug Entertainment - Director, Revenue & Data Insights (Gaming)

England, United Kingdom (On-Site)

Evolution - Revenue Accountant

St. Julian's, Malta (On-Site)

Jobs in Worldwide

growe - Billing Support Specialist

Worldwide (Remote)

ElevenLabs - IT Security Engineer

Worldwide (Remote)

ElevenLabs - Compliance Engineer

Worldwide (Remote)

Outscal - Mentor - C++ & DSA

Worldwide (Remote)

ESL FACEIT Group - EFG - Player Manager

Worldwide (Remote)

growe - VIP Account Manager

Worldwide (Remote)

VeVe - Senior Graphic Designer

Worldwide (Remote)

Software Engineering Jobs

PlayStation Global - Senior Programmer

England, United Kingdom (On-Site)

PlayStation Global - Principal Programmer - 12 month contract

England, United Kingdom (On-Site)

Metacore - Build Engineer

Uusimaa, Finland (Hybrid)

Media Molecule - Senior Programmer

England, United Kingdom (On-Site)

Media Molecule - Principal Programmer - 12 month contract

England, United Kingdom (On-Site)

CD PROJEKT RED - Senior Rendering Engineer

Massachusetts, United States (Hybrid)

DraftKings - AML Operations Associate

Nevada, United States (On-Site)

Raw group - Junior DevOps Engineer

Andalusia, Spain (On-Site)

Level Up Your Career in Game Development!

Transform Your Passion into Profession with Our Comprehensive Courses for Aspiring Game Developers.

Job Common Plug