Senior Java Full-Stack Developer - Growth & Impact

InnoTech; Lisboa; On-site; EUR 65,000 - 90,000; Full time

Benefits offered by this job

Health-focused partnerships

25 days vacation

Birthday/holiday time off

Petsitting partnerships

Team buildings

InnoSports initiatives

Sustainability events

Job summary

InnoTech is seeking a Senior Full-Stack Developer to join our Lisbon team. You will design, develop, and maintain full-stack applications using Java, Spring Boot, React, and Next.js, with a focus on scalable architectures and quality assurance.

You will collaborate with cross-functional teams to implement REST APIs, optimize data models in SQL/RDBMS, and drive CI/CD improvements. English (B2+) and Portuguese fluency are expected.

Qualifications

• 5+ years of experience as a fullstack developer with Java, Spring Boot, React, and Next.js.
• Experience with unit and integration testing, troubleshooting, and code optimization.
• Strong understanding of software design principles, patterns, and architecture; familiarity with microservices/hexagonal architecture.
• Hands-on testing experience with TDD/BDD.
• Proficient with JPA/Hibernate or equivalent ORM.
• English proficiency (B2+) and Portuguese fluency.

Responsibilities

• Design, develop, and maintain fullstack applications using Java, Spring Boot, React, and Next.js, following best practices.
• Ensure quality, performance, security, and reliability via testing, reviews, and automation.
• Design, develop, and maintain REST APIs with validation and proper error handling.
• Work with relational databases, optimizing queries and data models.
• Collaborate with technical and business teams on architecture, CI/CD, and continuous improvement.

Skills

Java

Spring Boot

React

Next.js

REST APIs

SQL/RDBMS

Git

Maven

CI/CD

TDD/BDD

JPA/Hibernate

English (B2)

Portuguese (Fluent)

Education

BSc or MSc in Computer Science, Engineering, Information Technology, or related areas

Tools

AWS

GitHub Actions

Docker

Job description

InnoTech is seeking a Senior Full-Stack Developer to join our Lisbon team. You will design, develop, and maintain full-stack applications using Java, Spring Boot, React, and Next.js, with a focus on scalable architectures and quality assurance.

You will collaborate with cross-functional teams to implement REST APIs, optimize data models in SQL/RDBMS, and drive CI/CD improvements. English (B2+) and Portuguese fluency are expected.