Middle Full Stack Engineer

Ciklum is looking for a Middle Full Stack Engineer to join our team full-time in Poland.

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 a Middle Full Stack Engineer, you will be a key member of a team dedicated to building and scaling a Shopify plugin. You will be participating in all stages of the development lifecycle — from ideation and design to implementation, deployment, and maintenance. This project is focused on developing a robust application for the Shopify ecosystem, helping thousands of merchants enhance their e-commerce capabilities and provide a seamless experience for their customers.

Responsibilities:

• Collaborate closely with Product, Design, and Data Science in a full ownership team
• Participate in system design and technical decision-making
• Use TypeScript to develop scalable backend services and clean, reusable frontend components
• Build, maintain, and integrate with Shopify's APIs using REST and GraphQL
• Ensure the application adheres to Shopify App Store standards and best practices
• Contribute to planning, implementing, and releasing new features
• Troubleshoot and resolve issues across the tech stack
• Write clean, maintainable, and testable code
• Actively participate in code reviews and team discussions
• Support and inspire the team with your technical expertise and problem-solving mindset

Requirements:

• 3+ years of hands-on experience in fullstack web development
• Strong knowledge of TypeScript
• Proven experience in developing applications for the Shopify platform, including a strong understanding of the Shopify API (REST and GraphQL) and the app development lifecycle
• Experience in frontend development with React
• Experience with AWS services (e.g., ECS, Lambda, SQS, SNS)
• Skilled in building and consuming RESTful APIs
• Experience working with NoSQL databases (e.g., MongoDB, DynamoDB) and relational databases (e.g., PostgreSQL)
• Strong problem-solving skills and attention to code quality
• Upper-intermediate or higher level of spoken and written English

Desirable:

• Experience with Shopify's Polaris design system and Liquid template language
• Familiarity with the Shopify CLI and app deployment/review process
• Exposure to Python and
• Frontend experience with React, , CSS Modules, SASS, or Styled Components
• Familiarity with event-driven architectures and microservices
• Experience in data analysis or fraud detection solutions
• Familiarity with DevOps practices and CI/CD pipelines

Personal skills: 

• Accountability: You take ownership and follow through on your responsibilities

• Drive: You're proactive and results-oriented, always seeking better ways to solve problems

• Self-development: You stay curious, seek feedback, and aim for continuous improvement

• Effective communication: You communicate your ideas clearly and collaborate effectively in a team

• Mentoring: You're open to helping less experienced team members and sharing knowledge

What`s in it for you?

• Strong community: Work alongside top professionals in a friendly, open-door environment

• Growth focus: Take on large-scale projects with a global impact and expand your expertise

• Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications

• Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies

• Flexibility: Enjoy flexibility – full remote working possibilities

• Care: We've got you covered with company-paid medical insurance, mental health support, and financial & legal consultations

About us:

At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you'll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.
With delivery centers in Wroclaw and Gdansk, our 300+ professionals in Poland drive forward-thinking solutions for global clients. Join a community where collaboration sparks innovation—and your impact reaches millions.

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Explore, empower, engineer with Ciklum

Interested already? We would love to get to know you Submit your application. We can't wait to see you at Ciklum.