Full Stack Developer Java + React
First seen by Alion on Nov 6, 2026.
We’re looking for the special, unique and amazing YOU!
@ KCS IT, we look for the ones that stands out, for those that always wants to be better and fight for it, and for those who has the same values that we do: dedication, energy, integrity, transparency, flexibility, trust, honesty, hard work, proactivity, team work.
At KCS we stand for equality and value diversity. We create a safe, diverse environment where opportunities are equal for everyone! We do not discriminate based on age, ethnicity, sexual orientation, gender, disability or any factor other than merit. All applications with skills for the position are welcome!
We are looking for an Amazing: Full Stack Developer Java + React
Seniority: Senior (5+ years)
Type of position: Hybrid model in Oporto. Candidates need to be already living in Portugal!
The amazing you, will have:
- Minimum of 4 to 5 years of experience in a Full Stack role.
- Strong experience with Java (8+) and Spring / Spring Boot for backend development.
- Hands-on experience with React.js, including components, hooks, state management, and routing.
- Good knowledge of JavaScript / TypeScript, HTML, and CSS.
- Experience with both relational (e.g., PostgreSQL, MySQL) and non-relational (e.g., MongoDB, Redis) databases.
- Proven experience working with and building REST APIs.
- Proficiency with Git version control.
- Comfort with manual testing and awareness of automated testing practices.
- Fluent English (spoken and written) – essential for daily collaboration.
To turn yourself from amazing to unique, you´ll have (plus):
- French language skills.
Why should you become part of our family?
- You can develop a career that fits you: your career development is personalized, taking in consideration your needs and goals from a short to long term
- Interesting Challenges Ahead: you can work for several clients from different sectors of activity
- Free training programs: Our training and certification programs in languages, tech, behavior and business will help you to reach your full potential faster
- International projects in Benelux: you can gain international experience in Benelux and balance a new way of living with work
- Type of projects (depending on the project you might find one of this types of projects):
- In hybrid Systems: Is important to balance work with socialization, that´s why a hybrid system works for us and for you
- Full Remote projects: If you want to work while you enjoy the comfort of your home
- Full Onsite projects: if you prefere the company of your colleagues!
- Take care of your well-being: Enjoy our free nutrition, psicologist, general medicine appointments and our yoga and personal training days… all remote
Who are we?
Founded in 2008 and based in Lisbon, KCS IT is a consulting company in the field of Information Technology and Services, focused on creating value for our clients through three main areas: Consulting, Outsourcing, Inovation and Training. Our commitment to talent development is unmistakable in the recent opening of the Porto, Leiria and Azores hubs, which aims to develop technology for the national and international market. Since 2018 we have been elected one of the 10 major companies in the “Index of Excellence”, an initiative that aims to reward organizations that invest most in the development and satisfaction of their employees.
At KCS IT we defend equality and value diversity. We create a safe, diverse environment where opportunities are equal for all employees!
We do not discriminate based on age, ethnicity, sexual orientation, gender, disability or any factor other than merit.
All applications with skills for the role are welcome!