OLSYS provides full-service solutions for mid-market and enterprise organizations. With 15+ years of experience, 100+ projects, and 50+ strong technical experts in the team, we continue to grow by expanding our development team in Europe, as well as expanding the base of new clients and projects.
26 вересня 2023

Senior JavaScript (React+Node.js) Engineer (вакансія неактивна)


About the Company

OLSYS Ltd provides full-service solutions for mid-market and enterprise organizations.

As an enterprise software development company, we are building long term partnerships helping our clients accelerate their digital experiences with reasonable IT investments.

Our tailored approach, e-commerce focus, and flexible solutions allow us to design, develop, and deliver scalable, integrated commerce platforms that drive profits and boost the business.

15+ years of experience, 100+ projects, 50+ specialists

About project:

Our client, a dynamic start-up company in the field of digital marketing, is seeking a talented and experienced Senior React Engineer to join their team. This is an excellent opportunity to work closely with the highly experienced CTO, who has successfully created multiple tech start-ups.

This is a challenging and rewarding opportunity for a mature, experienced, and self-driven Senior React Engineer to make a significant impact on a start-up project in digital marketing. If you are passionate about cutting-edge technologies, AI integration, and being part of a highly collaborative team, we would love to hear from you.


  1. 5+ years of professional experience in front-end web development.
  2. Proficiency in ReactJS and Node.js
  3. Hands-on experience with Google Sheet SDK, GCP
  4. Ability to create responsive, efficient, and user-friendly web applications using React, HTML5, CSS3, and related libraries or frameworks.
  5. Skill in building server-side applications and APIs using Node.js, Express.js, or similar technologies.
  6. Familiarity with database systems like PostgreSQL or MySQL, including data modeling and querying.
  7. Experience in designing, building, and consuming RESTful APIs
  8. Maturity and Professionalism: We are seeking a mature professional who demonstrates a high level of professionalism and has a well-grounded, composed demeanor.
  9. Strong communication and interpersonal skills.
  10. Knowledge of best practices for web security and performance optimization is a plus.
  11. Good spoken and written English.


  1. Collaborate with cross-functional teams to develop, and maintain responsive web applications using React.js.
  2. Write clean, modular, and maintainable code while adhering to best practices and industry standards.
  3. Optimize application performance and troubleshoot issues to ensure smooth user interactions.
  4. Mentor and provide technical guidance to junior developers, fostering a culture of
  5. Stay updated on the latest trends and technologies in web development and proactively suggest improvements to our development processes.
  6. Participate in code reviews to maintain code quality and ensure adherence to coding standards.