Senior Ruby on Rails Engineer

2 weeks ago

Belgrade, Central Serbia Sowelo Consulting sp. z o.o. Full time €30,000 - €60,000 per year

Join our team as a Senior Full Stack Engineer, where you'll play a key role in developing, maintaining, and optimizing applications. Collaborate with product managers, designers, and fellow engineers to enhance features, create new ones, and ensure a scalable and secure architecture.

Key Responsibilities

  • Lead Development: Build scalable, high-quality web applications using Ruby on Rails.
  • Collaborate: Work with cross-functional teams to design and develop new features for web and mobile platforms.
  • Frontend Optimization: Maintain and optimize the frontend with JavaScript frameworks like Turbo and/or Stimulus.
  • Integration Management: Oversee integration of third-party services such as Twilio, SendGrid, and Stripe.
  • Infrastructure Stability: Ensure the application's infrastructure on Heroku and AWS is stable, secure, and scalable to meet growing demand.
  • Database Management: Contribute to managing AWS Aurora for MySQL databases, ensuring efficient, reliable access to data.
  • Code Quality: Develop, maintain, and enforce code quality and security standards, using tools like Brakeman and Dependabot.
  • Deployment Process: Drive deployment with robust CI/CD practices, including automated testing and pull request reviews.
  • Mentorship: Provide guidance to junior engineers and participate in code reviews.
  • Leverage modern development tools and AI-assisted coding practices to accelerate feature delivery while maintaining code quality standards.

Required Qualifications

  • 5+ years as a Full Stack Engineer with strong Ruby on Rails expertise.
  • Proficiency in JavaScript (jQuery, Stimulus).
  • Experience in database management, particularly MySQL or AWS.
  • Hands-on experience with Heroku, AWS services, and infrastructure as code (Terraform).
  • Proven experience with CI/CD pipelines, automated testing suites, and GitHub workflows.
  • Excellent problem-solving skills and ability to work independently or as a team.
  • Strong attention to detail in maintaining code quality and security standards.

Nice-to-Have Skills

  • Experience with third-party integrations like Twilio, SendGrid, Stripe, ChromeData, and CarFax.
  • Familiarity with Airbrake, NewRelic, ElasticSearch, and caching mechanisms (Redis, Memcached).
  • Understanding of mobile web app development and responsive design principles.
  • Knowledge of Dealer Management Systems (DMS) integrations and vehicle data processing.
  • Experience with AI-powered development tools (GitHub Copilot, Claude, Cursor) and modern development acceleration techniques.

Benefits

  • Competitive salary USD per year)
  • Flexible work environment (100% remote-friendly)
  • Unlimited PTO
Sounds interesting? Send us your CV by applying to this page

The provision of personal data by you is fully voluntary and the basis for their processing is your consent. We have prepared some necessary information, you can find in document: "Information regarding the processing of your personal data". There you will find how your Personal Data is being processed and what your rights are in connection to this.

The personal data will be processed by Sowelo Consulting spółka z ograniczoną odpowiedzialnością spółka komandytowa with its registered seat in Cracow (Limited Partnership) registered in National Court Register (KRS) under no , Sowelo Consulting spółka z ograniczoną odpowiedzialnością (LLC) with its registered seat in Cracow registered in National Court Register (KRS) under no , our Employees and Subcontractors (jointly referred to as the Company).

Sowelo Consulting sp. z o.o. sp. k. is entered in the register of employment agencies under the number: 17107

IT Recruitment Poland | Executive Search | Recruitment Process Outsourcing

  • Senior Software Engineer

    2 weeks ago

    Belgrade, Central Serbia LearnUpon Full time €60,000 - €120,000 per year

    LearnUpon is looking for a Senior Software Engineer to join our team in Belgrade. This is a flex role, working 1 day per week from LearnUpon's Belgrade office.LearnUpon LMS helps organizations train their employees, partners, and customers. Businesses can manage, track, and achieve their unique learning goals — all through a single, powerful solution.With...

  • Senior Software Engineer

    2 weeks ago

    Belgrade, Central Serbia LearnUpon Full time €60,000 - €120,000 per year

    LearnUpon is looking for a Senior Software Engineer to join our team in Belgrade. This is a flex role, working 1 day per week from LearnUpon's Belgrade office.LearnUpon LMS helps organizations train their employees, partners, and customers. Businesses can manage, track, and achieve their unique learning goals — all through a single, powerful solution.With...

  • Senior QA Engineer

    2 weeks ago

    Belgrade, Central Serbia Sowelo Consulting sp. z o.o. Full time 25,000 - 40,000 per year

    Do you have experience with both Manual and Automation Testing?Do you have experience with Ruby-based testing frameworks? Great Then please read on as we have a role for you As a Senior QA Engineer, you'll play a key hands-on role in ensuring the quality and reliability of our clients product. You will design and execute comprehensive test strategies,...

  • Senior Golang Developer

    2 weeks ago

    Belgrade, Central Serbia Unlimit Full time €80,000 - €120,000 per year

    About Unlimit Founded in 2009, Unlimit is a global fintech company with 16 offices worldwide and more than 500 employees, offering a comprehensive portfolio of financial services—from acquiring (payment processing) to banking-as-a-service. Our mission is to be "ready for tomorrow," providing our customers with stability in the ever-changing financial...

  • Senior Golang Developer

    2 weeks ago

    Belgrade, Central Serbia Unlimit Full time $120,000 - $200,000 per year

    About UnlimitFounded in 2009, Unlimit is a global fintech company with 16 offices worldwide and more than 500 employees, offering a comprehensive portfolio of financial services—from acquiring (payment processing) to banking-as-a-service. Our mission is to be "ready for tomorrow," providing our customers with stability in the ever-changing financial...

  • Senior Golang Developer

    2 weeks ago

    Belgrade, Central Serbia Unlimit Full time €60,000 - €120,000 per year

    About UnlimitFounded in 2009, Unlimit is a global fintech company with 16 offices worldwide and more than 500 employees, offering a comprehensive portfolio of financial services—from acquiring (payment processing) to banking-as-a-service. Our mission is to be "ready for tomorrow," providing our customers with stability in the ever-changing financial...

  • Python Software Engineer

    1 week ago

    Belgrade, Central Serbia Orion Innovation Full time €30,000 - €60,000 per year

    Orion Innovation is a premier, award-winning, global business and technology services firm. Orion delivers game-changing business transformation and product development rooted in digital strategy, experience design, and engineering, with a unique combination of agility, scale, and maturity. We work with a wide range of clients across many industries...

  • DevOps Engineer

    2 weeks ago

    Belgrade, Central Serbia First Circle Full time €60,000 - €120,000 per year

    First Circle is one of the fastest growing fintechs in South-East Asia, providing financial services to under-served SMEs. We have already transformed access to credit for thousands of small businesses in the Philippines,Last year we raised Series B, led by the IFC (the World Bank's investment arm) and we are now building a full-stack Neobank that will...

  • Senior Software Engineer

    2 weeks ago

    Belgrade, Central Serbia Altium® Full time €90,000 - €120,000 per year

    Why Altium?Altium is transforming the way electronics are designed and built. From startups to world's technology giants, our digital platforms give more power to PCB designers, supply chain, and manufacturing, letting them collaborate as never before.Constant innovation has created a transformative technology, unique in its spaceMore than 30,000 companies...

  • Tech Lead

    2 weeks ago

    Belgrade, Central Serbia Paysend Full time €40,000 - €80,000 per year

    About Paysend:Paysend is a global fintech company on a mission to build the world's largest open, instant digital payment network. This isn't just about moving money; it's about eliminating complexity and friction in global finance for millions of customers and businesses across 170+ countries.As a next-generation integrated platform, we combine deep...