Senior JavaScript Engineer

Salary range: B2B - 40-42 E/h + VAT 💰

Ciklum is looking for a Senior JavaScript 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 Senior JavaScript Engineer, become a part of a cross-functional development team working for a world-leading professional services organization that specializes in audit, tax, consulting, and advisory services. Your work will involve developing innovative software products for clients in the consumer sector.

Responsibilities:

• Efficiently and effectively translate Figma designs into functional, production-ready features

• Design, develop and thoroughly test responsive web applications using React.js and TypeScript

• Implement and maintain robust, scalable, and secure frontend code

• Integrate frontend components with server-side logic via secure APIs

• Collaborate with cross-functional teams to define, design, and ship new features

• Optimize applications for maximum speed and scalability

• Troubleshoot and debug issues across the full stack

Requirements:

• Bachelor's degree in Computer Science, Software Engineering, or a related field

• 5+ years of professional experience in web development

• Expert-level proficiency in React.js and TypeScript and their core principles

• Strong experience with Material UI (MUI) and building and customizing components

• Proficiency with testing frameworks like Jest and React Testing Library

• Experience translating Figma designs into code

• Strong experience with tools like Ladle and Storybook for documenting and showcasing reusable components

• Proficiency with reusable component architecture: utilizing compound components and building flexible, reusable UI systems

• Proven experience in integrating with RESTful APIs

• Experience with advanced automation, including tools like Copilot and Builder.io

• Solid understanding of front-end build tools and modern JavaScript frameworks

• Excellent problem-solving skills and attention to detail

Desirable:

• Strong experience with full stack development, including Node.js, Express, Python, FastAPI, or other similar languages and frameworks

• Hands-on experience with Docker and container orchestration tools (e.g., Kubernetes)

• Experience publishing builds and artifacts to artifact repositories like JFrog

• Exposure to tools like Doppler for secrets and environment management

• Familiarity with database technologies (SQL)

• Experience with cloud platforms such as Google Cloud, AWS, or Azure

• Knowledge of CI/CD pipelines and DevOps practices

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 Wrocław and Gdańsk, our 300+ professionals in Poland drive forward-thinking solutions for global clients. Join a community where collaboration sparks innovation—and your impact reaches millions.

Want to learn more about us? Follow us on Instagram, Facebook, LinkedIn.

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.