Job Summary: We are looking for a Backend Developer with solid experience in API development, scalable software architecture, and system integration to join technological transformation projects. Key Highlights: 1. Be part of a Great Place To Work organization focused on people. 2. Work in multidisciplinary teams on diverse and challenging projects. 3. Continuous personal mentoring and support for your professional growth. DESCRIPTION **JOIN THE TEAM AS A BACKEND DEVELOPER!** Do you want to be part of an organization committed to caring for people and supporting their personal and professional growth? Are you passionate about development and eager to tackle new challenges? Join Kairós! **Who Are We?** We have been recognized as a **Great Place To Work** company since 2019 — for the fifth consecutive year — and ranked **5th in 2024**, thanks to our values, culture, and internal benefits and initiatives centered on people. We accompany our clients in technological and agile transformation projects. **We work in discipline-based teams and in multidisciplinary squads across highly diverse projects** (retail, healthcare research, banking, security, mobility, etc.). **Although we’ve grown significantly over the past year, we don’t want to lose sight of our essence — always focused on people**: we conduct continuous personal follow-up with our technical and Talent teams. Moreover, we consistently prioritize transparency and clarity. **We operate in Spain, Mexico, and Peru.** At Kairós, you’ll find projects where you can work remotely — without losing closeness with the rest of the team!. **What Are We Looking For?** At **Kairós**, we seek individuals with experience as a **Backend Developer**, possessing solid expertise in API development, scalable software architecture, and system integration. This person will play a key role in designing, implementing, and maintaining robust and efficient solutions, collaborating closely with frontends, DevOps, and product owners. The candidate will join our Tech discipline, led by **Carlos Cañado and Reinaldo Aguilera.** More than **350 Kairoseros and Kairoseras** belong to the Tech family at Kairós, and we deliver technological solutions across all types of projects — from inception and product definition — working with various frameworks and ensuring solutions that are not only effective but also easy to use, maintain, and adapt to today’s evolving technological landscape. **We’re looking for people who…** * Have participated in **software development projects** for at least **four years**. * Have experience with **Java 1\.8 or higher**. * Have worked with **Spring Boot** within the last year. * Are familiar with **Microservices and REST APIs** environments. * Routinely use **Git**. * Have worked with **databases (BBDD)** and data handling in **Kafka**. * Hold authorization to **reside and work in Spain**. * Can work in **English**. **Nice-to-Have…** * Experience with **asynchronous communication**. * Experience in **hexagonal architecture** projects. * Familiarity with **Clean Code and S.O.L.I.D.** principles, and prior implementation experience. * Experience with **containers / Docker**. * Experience with **Kubernetes / OpenShift**. **What Can We Offer You?** At Kairós, you’ll find: * Free English classes in small groups. * 23 vacation days, December 24th and 31st off, 1 day for events, and **3 flexible-work days!** * Enjoy summer with our reduced working hours in August and intensive schedule every Friday throughout the year. * Flexible compensation via Cobee, usable for dining, public transportation, training, and childcare vouchers. * Health insurance with Cigna or Sanitas: we care about your physical and mental well-being. * Continuous personal mentoring through our Wellness 3\.0 program and ongoing technical mentoring. * Opportunities to strengthen your personal brand through internal and external events. * Membership in a large community, supported by incredible people and industry leaders. * But above all… being part of a company where your voice is heard, where you’re cared for, and where we strive to meet your needs and expectations. You’ll fit right in if you love learning, sharing knowledge, and treating others with respect and kindness. If you’re interested in contributing to an open, transparent, and trusting culture — and if you possess organizational skills, responsibility, commitment, and a pursuit of code quality. **\#TRY \#THINK \#FEEL \#ENJOY** At Kairós, we firmly believe in the importance of equality and diversity in the workplace. We are committed to creating an inclusive and respectful environment where all employees feel valued and have the opportunity to reach their full potential — regardless of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or any other characteristic protected by law.