Description
Ciklum is looking for a Senior React Engineer to join our team in Argentina.
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 React Engineer, you'll become a part of a cross-functional development team engineering experience of tomorrow.
This is a hands-on role focused on developing and maintaining high-performance user interfaces using React.js and modern JavaScript frameworks. You will play a key role in building scalable, maintainable web applications within a microfrontend and microservices architecture. In addition to React development, the ideal candidate will bring strong automation testing capabilities, leveraging tools such as Selenium, Cypress, Playwright, or similar. You’ll collaborate closely with product owners, designers, and backend engineers in an Agile environment to deliver elegant, responsive, and reliable features that enhance user experience.
Responsibilities
- Design, build, and maintain modern, scalable front-end features using React.js, ES6, HTML5, and CSS3 within Agile teams
- Develop UI components as part of a microfrontend architecture, ensuring seamless integration and high performance
- Collaborate with cross-functional teams to build and improve a complex web-based GUI used in a distributed microservices ecosystem
- Write clean, maintainable, and testable code using unit, integration, and automation tests with tools like Selenium, Cypress, or Playwright
- Contribute to CI/CD pipelines, front-end build processes, and continuous quality improvements across the team
- Advocate for modern front-end practices, performance tuning, and UI/UX best practices
- Participate in code reviews, mentoring junior developers, and leading technical discussions where applicable
Requirements
- 7+ years of professional experience in front-end development, including strong proficiency in React.js, JavaScript (ES6+), HTML5, and CSS3
- 4+ years of hands-on experience with modern React libraries and CSS-in-JS techniques (e.g., Styled Components, Emotion, etc.)
- Proven ability to write and maintain automated tests, with hands-on experience in Selenium, Cypress, Playwright, or equivalent testing frameworks
- Familiarity with frontend build tools (Webpack, Vite, Babel, etc.) and version control systems like Git
- Working knowledge of databases—either PostgreSQL, MongoDB, or other NoSQL solutions is a plus
- Experience working in Agile teams and contributing to collaborative development practices
- Strong understanding of modern UI/UX design principles, accessibility, and responsive design
- Passion for modern frontend technologies and eagerness to keep up with the evolving web ecosystem
- Excellent communication skills and a proactive, team-first mindset
Desirable
- Experience with mobile application development (React Native or similar)
- Background in CI/CD environments and continuous integration tools
- Relevant academic background in Computer Science, Engineering, or a related field
What's in it for you
- Care: your mental and physical health is our priority. We ensure comprehensive company-paid medical insurance and mental health programs, 5 undocumented sick-leave days per year
- Tailored education path: boost your skills and knowledge with our regular internal events (meetups, conferences, workshops), Udemy license, language courses and company-paid certifications
- Growth environment: share your experience and level up your expertise with a community of skilled professionals, locally and globally
- Long-term employment with 20 working-days paid vacation and local bank holidays
- Flexibility: 100% remote work mode
- Opportunities: 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 fulfill your potential
- Global impact: work on large-scale projects that redefine industries with international and fast-growing clients
- Welcoming environment: feel empowered with a friendly team, open-door policy, informal atmosphere within the company and regular team-building events
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.
As we expand into Latin America, every Ciklumer is helping to shape our story. Collaborate with seasoned experts and make a global impact backed by two decades of industry leadership.
Want to learn more about us? Follow us on Instagram, Facebook, LinkedIn.
Explore, empower, engineer with Ciklum!
Experiences of tomorrow. Engineered together
Interested already?
We would love to get to know you! Submit your application. Can’t wait to see you at Ciklum.
Apply