Unilime

We are looking for a Python Developer to join our team and work on the development of new modules for an existing product, integrations with international delivery services and payment systems, and improvement of core system logic and algorithms.

Requirements

• 3+ years of commercial experience with Python and Flask
• Experience with Celery for background task processing
• Experience with Selenium/WebDriver or Playwright
• Solid experience working with PostgreSQL in production projects
• Experience with AWS cloud services (e.g., Aurora, ECS) and data storages
• Confident Git usage
• Written English sufficient for work communication

• Ability to work effectively in a team environment

   

Will be a plus

• Experience with Amazon Redshift
• Experience working with delivery and payment APIs (DHL, FedEx, USPS, EML)

• Experience in projects where the front-end is built with React.js

   

Responsibilities

• Development of new modules and features for the existing product
• Integration with payment systems and international delivery services
• Improvement and optimization of system algorithms and business logic
• Participation in architecture and technical decisions

We’re looking for an experienced Ruby on Rails Developer who enjoys building reliable, user-centric web applications and taking ownership of meaningful technical challenges. In this role, you’ll work on a mature product, collaborate closely with a skilled and supportive team, and have real influence on both technical decisions and product evolution.
 

Your Background

• Proven experience in building and maintaining web-based applications
• 5+ years of hands-on experience working with Ruby on Rails, Stimulus, Vue.js, PostgreSQL, and Linux-based servers
• A collaborative mindset - you enjoy working closely with others and contributing as part of a team
• Strong written and verbal communication skills in English and/or German
• Comfortable taking ownership and responsibility, seeing it as a chance to grow rather than a source of pressure

• Genuine interest in understanding the needs, challenges, and perspectives of both users and clients

   

Our Technical Stack

• Backend: The core of our product is built with Ruby on Rails, primarily using server-side rendering
• Frontend: Vue.js is used for selected components, with Turbo and Stimulus planned for future enhancements
• Database & Caching: PostgreSQL for persistent data storage and Redis for caching
• Infrastructure & Deployment: Applications run on Ubuntu Linux virtual machines, deployed using Capistrano, with a planned migration to Kamal 2
• Development Tools: RubyMine is the main IDE used by the team
• Version Control & Code Review: GitLab for source control, merge requests, and reviews

• Team Communication: Slack is our primary communication platform

   

What You Can Expect

• Working on and evolving a modern, user-focused product
• Improving existing functionality while contributing to new features and development initiatives
• The opportunity to influence processes, product direction, and infrastructure growth
• Participation in annual developer retreats
• Dedicated time and support for your professional growth and learning