Senior JavaScript Developer

Ciklum is looking for a Senior JavaScript Developer to join our team full-time in Poland.We are a leading global product engineering and digital services company that unites 4000+ seasoned professionals globally on various projects in healthcare, fintech, travel, sportswear, entertainment, and security. Ciklum delivers high-impact technology solutions to Fortune 500 and fast-growing organisations worldwide.

About the role:As a Senior JavaScript Developer, become a part of a cross-functional development team working for Our Client. You will work for the world leader in AI powered code completion, supporting more than 30 languages in 15 IDEs. Works tirelessly building the tools that help the dev community write twice the code, in half the time. Trusted by over 1 million developers around the globe and growing fast! About youYou wake up ready to chew through coding challenges. You effortlessly hop between languages like Rust, Python, Kotlin and TypeScript just to keep from getting bored. You recognize the beauty and elegance in a perfectly written line of clean code. You know that vigorous debate with your teammates and rigorous testing are the key ingredients to success. You’re committed to the community and keeping things open source because in the end we’re doing all of this for them.

Responsibilities:Design and implement complex web applications using the established approaches and best practicesImprove existing engineering and quality standards in a team and help other team members adopt themOpen to learning and working with various programming languages, frameworks and concepts including Rust, Python, Java, React, open sourceCreate CI/CD pipeline by template and/or assist DevOps team in creating more complex pipelinesParticipate in the hiring process and technical interview activitiesCoach/supervise middle/junior engineers by demand of the project

Requirements:We know that sometimes, you can’t tick every box. We would still love to hear from you if you think you’re a good fit!Software DesignProficient in different API architectural styles (monolith, microservices, serverless)Experience in designing solutions using the proper patterns and development standardsSoftware development:Solid background in Node.js and building high-performance applicationsUse of advanced features in Node.jsUse of complex queries and aggregations to databases (Postgres, Redis)Versatile approach to software engineering including diverse tech stack (React, Rust, Python + tell us what you can) Nice to have experience in R&D and LLMs APIQuality Assurance:Practical experience with testing approaches and toolsSupporting code quality metricsFamiliar with monitoring and logging toolsSoftware Deployment:Hands-on experience with application deployment patterns and tools (Docker, Kubernetes)Prior record in infrastructure configuration using popular cloud providers (like AWS, GCP, Azure) or Virtual Private CloudDesirableYour soft skills matterCommunication is a key. You speak and write in English fluently or at least at upper-intermediate levelAccountability:Following the “said and done” principleAccountability for the own scope of workDrive:Proactive in efforts to deliver results according to expectationsSuggesting new ideas, and looking for alternative solutionsSelf–development:Eager to learn and grow: curios, keen to constant self-developmentConstantly improving own mastershipEffective communication:Ability to express ideas, thoughts and questions simply, concisely and in a structured way

What's in it for you?Care: your mental and physical health is our priority. We ensure comprehensive company-paid medical insurance, life insurance and Multisport cardTailored education path: boost your skills and knowledge with our regular internal events (meetups, conferences, workshops), Udemy licence, language courses and company-paid certificationsGrowth environment: share your experience and level up your expertise with a community of skilled professionals, locally and globallyFlexibility: choose how you want to work – a 100% remote or on-site in our office in Gdansk or Wroclaw. Own your schedule – you are the one to decide when to start your working day. Just don’t miss your regular team stand-upOpportunities: 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 fulfil your potentialGlobal impact: work on large-scale projects that redefine industries with international and fast-growing clientsWelcoming environment: feel empowered with a friendly team, open-door policy, informal atmosphere within the company and regular team-building events

About us:Join a well-established company and a strong team of professionals. Seize the perks of global opportunities, local approach and start-up spirit.Boost your skills with modern stacks and industry-leading clients!Enjoy what you do, do what you enjoy!

Be bold, not bored!Interested already?

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

Key Skills

• TypeScript
• Microservices