Description
Ciklum is looking for an Expert Ruby on Rails Developer to join our team full-time in Ukraine.
We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.
About the role:
As an Expert Ruby on Rails Developer, become a part of a cross-functional development team engineering experiences of tomorrow.
The platform is the top-selling language learning solution.
Driven by a purpose – to create mutual understanding through language – it builds products that help people connect and communicate across cultures. Through self-study lessons, instructor-led live classes, business solutions, a podcast series, and a magazine, users can focus on using a new language in real situations with real people. And it works: studies with Yale University, City University of New York, and Michigan State University prove that it gets users to speak with confidence.
The key is a blend of humanity and technology. More than 60,000 lessons in 15 languages are handcrafted by over 200 linguists, and user behavior is constantly analyzed to shape and improve the learner experience. A team of linguistic experts handcrafts each of the courses to provide content that is constantly adapted to learners’ needs. Interactive content with videos and podcasts makes understanding a new language easy because it is designed for everyone. That’s why the team is as diverse as the content. From headquarters in Berlin and New York, 750 people from more than 65 nationalities represent the backgrounds, characteristics, and perspectives that make all humans unique. Making a true connection with millions of paid subscribers across the globe is what makes this platform the most profitable language learning app worldwide.
Platform in Numbers:

• The #1 top-grossing language learning app globally
• Millions of active paying subscribers
• More than 60,000 lessons 14 languages hand-crafted by 150+ linguists
• More than 10,000 hours of learning content
• Over 70 learning podcast episodes and over 50 hours of video learning content

As part of our team, we’ll collectively tackle all things engagement: how do we ensure that learners are always challenged, but never overwhelmed? That everyone feels welcomed? That everyone is motivated to pick up the app and learn something every single day?
In your role as an Expert Ruby on Rails Developer, your mission will be to drive the development of a technical platform that enables seamless and effective operation of the internal Customer Support department at our company (75 members and growing). This is a truly cross-functional role, as the main goal for your team will be to optimize internal processes and construct a platform that aggregates and exposes various data streams and features from different products and knowledge domains. You will collaborate with a variety of teams and departments, diving into different disciplines to broaden your knowledge in other fields of expertise while sharing your own. You will contribute to great architecture and build the foundation of an easily extendable and well-maintainable platform.
Responsibilities

• Own architectural design and constantly propose improvements of the existing features
• Deliver value iteratively by building high-quality applications and features
• Build, maintain, and take ownership of a rich ecosystem of applications and services
• Be part of feature teams and build end-to-end customer features
• Ensure that the systems you own are healthy, resilient, and perform well
• Collaborate cross-functionally on feature design, architectural decisions, and assessing technical debt
• Participate in the search for ways to improve and automate corporate processes
• Shape our coding guidelines and quality standards
• React, troubleshoot and solve operational events (bugs and incidents)
• Focus on continuous learning and improvement and drive the evolution of our engineering practices
• A can-do attitude to build MVPs and iterate on them in short cycles
• Experience with infrastructure-as-code, ideally with Terraform

Requirements

• Excellent knowledge in Computer Science, Computing Theory:
  • Paradigm & Principles (OOP, SOLID)
  • Database theory (RDBMS, No SQL)
  • Code testing practices
  • Architectural, Enterprise and Design Patterns
• Excellent knowledge and experience in Ruby on Rails (more than 5 years)
• Practical commercial experience with:
  • REST API development
  • Strong sense for good API design and third-party API integrations
  • Web application frameworks, Testing frameworks, ORM
  • RDBMS (e.g My SQL, Postgre SQL)
  • Experience No SQL databases
  • Key-value storages (e.g. Redis, Memcached)
  • Experience in using AWS
  • Hands-on experience with microservice architecture and Event-Driven design
  • Testing experience on different levels: unit, integration, E2E
  • Version control systems (GIT)
  • Coding with security in mind
  • Docker
• Experience with:
  • Troubleshooting, profiling and debugging applications
  • Creation software architecture and design of complex applications, platforms
  • Agile software processes and technologies
  • Code Review process
  • Refactoring process
• Fluent or Upper-Intermediate English

Desirable

• More than a year of commercial experience and proficient knowledge in Java Script, HTML, CSS (incl. preprocessors and CSS in JS)
• Python, Elastic Search – good to have
• Experience with Payments, Pricing or Customer Support business domains
• Experience with Data-intensive systems
• Knowledge of analyzing metrics about system health and performance (ideally Data Dog, Cloud Watch, Pager Duty, Rollbar)

What's in it for you

• Care: your mental and physical health is our priority. We ensure comprehensive company-paid medical insurance, Mental Health programs, as well as financial and legal consultations
• Tailored education path: boost your skills and knowledge with our regular internal events (meetups, conferences, workshops), Udemy license, language courses and company-paid certifications
• Growth environment: share your experience and level up your expertise with a community of skilled professionals, locally and globally
• Own your schedule – you are the one to decide when to start your working day. Just don’t miss your regular team stand-up
• Opportunities: we value our specialists and always find the best options for them. Our Internal Mobility Program helps change a project if needed to help you grow, excel professionally and fulfill your potential
• Global impact: work on large-scale projects that redefine industries with international and fast-growing clients
• Welcoming environment: feel empowered with a friendly team, open-door policy, informal atmosphere within the company and regular team-building events

About us:
Discover the pros of 20-year global experience! Join one of the largest IT companies in Ukraine, awarded as one of the top 10 employers in Ukraine by Forbes.
Boost your skills and make a difference with cutting-edge projects, skilled colleagues and the latest tech stacks.
Ciklum has been recognised as a veteran-friendly business by the Veteran Hub in Ukraine.
We're committed to creating a welcoming environment for veterans and developing processes that meet their needs. We value the skills and unique perspectives military veterans can bring to our business and are willing to support their transition to civilian life.
Be bold, not bored!
Experiences of tomorrow. Engineered together
Interested already?

We would love to get to know you! Submit your application. Can’t wait to see you at Ciklum.