Ciklum is looking for a Senior JavaScript Engineer (+iOS) 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 (+iOS), become a part of a cross-functional development team engineering experiences of tomorrow. Together, we will work on the project manufacturing project for a Danish company. Responsibilities: - Supplementing our product team mentioned above adding extra development competencies and additional Capacity - Delivering backlog items aligned with product priorities incl documentation and automatic testing - Ensuring knowledge sharing with the colleagues - Developing using best practices aligned with the client's product team - Potentially participate in team ceremonies such as planning, refinement, stand-ups, and potentially pair programming Requirements: - Web frontend engineer first, but full stack that can also cover iOS and backend development - Experience with Agile methodology - Good communication skills – both on a technical level for engineer-engineer, but also to our business specialist/functional stakeholders - Team player,a mindset of WE over I - Strong background with Frontend development using Typescript, Javascript, and React, Azure Cloud, AWS, Git - Not required but advantage, if the candidate has experience with: - Backend development with .NET and C# - API development using GraphQL, OpenAPI, and AsyncAPI - Experience with MSSQL, Azure SQL, and PostgreSQL - iOS development with React Native - Redis, RabbitMQ, Pulsar 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.

Workstate is looking for a Lead Frontend Developer to join our talented team! In this vital role, you will be responsible for leading technical teams creating dynamic user interfaces and ensuring a seamless user experience across our web applications. If you are passionate about modern frontend technologies and delivering high-quality user experiences, you'll thrive at Workstate. We are seeking developers who can engage with and motivate our clients while diving deeply into frontend development and envisioning future improvements. Our consultants are quick on their feet, dedicated to driving quality and innovation. Residents of Colombia or Argentina with the right to work in that country are eligible for this opportunity.

Workstate is looking for a Lead Frontend Developer to join our talented team! In this vital role, you will be responsible for leading technical teams creating dynamic user interfaces and ensuring a seamless user experience across our web applications. If you are passionate about modern frontend technologies and delivering high-quality user experiences, you'll thrive at Workstate. We are seeking developers who can engage with and motivate our clients while diving deeply into frontend development and envisioning future improvements. Our consultants are quick on their feet, dedicated to driving quality and innovation. Residents of Colombia or Argentina with the right to work in that country are eligible for this opportunity.

• Architect and maintain complex, predictable UI logic using XState or similar state management solutions • Develop high-performance, interactive geospatial interfaces using MapLibre, Mapbox, or similar libraries • Implement and manage real-time data flows using WebSockets and Socket.IO • Optimize rendering performance to ensure smooth user experiences (60fps) under heavy data loads • Build scalable, modular, and testable front-end applications using React and TypeScript • Collaborate closely with design and backend teams to translate product requirements into technical solutions • Ensure clean code practices, documentation, and maintainability across the codebase