Tenjin · 3 months ago
Senior Full-Stack Ruby on Rails Engineer
United States
Full-time
Remote
Mid, Senior Level
$125K/yr - $225K/yr
5+ years expTenjin is a remote-only organization aiming to help mobile app developers make data-driven decisions about their marketing. The Senior Full-Stack Ruby on Rails Engineer will lead the development of the analytics dashboard, designing and maintaining APIs and collaborating with various teams to push new features to production.
Ad NetworkAdvertisingAnalyticsAndroidAppsBig DataiOSMobileSaaS
Responsibilities
Lead major architecture and software design decisions
Develop and maintain background jobs (Sidekiq) and employ caching to keep dashboards snappy under load
Own CI/CD pipelines and deployments (GitHub Actions, Docker, Kubernetes/ECS), ensuring that releases are automated, reliable, and fast
Collaborate closely with designers, product managers, and front-end developers to create user-friendly and visually appealing interfaces
Write clear and maintainable documentation
Ensure test coverage for new and existing features using RSpec and Jest
Employ feature flags to support trunk-based development workflows
Adhere to and enforce code style guidelines and best practices
Profile, debug, and optimize both front-end and back-end performance issues in production and staging environments
Qualification
Required
Deep expertise in Ruby on Rails (typically 5+ years)
Proficiency in ReactJS (typically 3+ years), along with a strong foundation in JavaScript, TypeScript
Experience integrating front-end components with Ruby on Rails backends
Experience building and consuming REST APIs
Familiarity with Git and hosting platforms like GitHub
Excellent organization and communication skills
An appetite for learning, problem-solving, and contributing to a dynamic team environment
Preferred
Experience with AWS, Kubernetes, and Docker
Experience with Ruby outside of a Rails context (such as Sinatra)
Experience with PostgreSQL
Experience with advanced topics in React such as the Context Api, Memoization and Virtualization
Experience with mobile app development or mobile marketing
Experience building data-intensive user workflows - customizable tables, charts, etc
Experience working with in-house style guides
Benefits
Annual budget for learning and personal development (conferences, books, classes, etc)
Budget for fitness and well-being activities (gym memberships, fitness equipment)
Unlimited vacation days and a vacation stipend to make sure you take time off (we recommend at least 20 days off per year)
Team off-sites and other get-togethers
Health Care Plan (Medical, Dental & Vision)
Family Leave (Maternity, Paternity)
Company
Tenjin
Tenjin brings transparency and insight into your mobile marketing.
11-50 employees
H1B Sponsorship
Tenjin has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
2024 (3)
2021 (2)
2020 (2)
Funding
Current Stage
Early StageTotal Funding
$2.5MKey Investors
NetEase CapitalCurious Endeavors
2016-06-02Seed· $2.5M
2014-06-01Seed
Leadership Team
Christopher Farm
Co-founder, CEO
Amir Manji
Co-Founder, Head Barista
Recent News
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