Senior Full Stack (Java&React)

Present Technologies, ranked on the Top 2 of the Best Place to Work for in Portugal, is seeking for highly-skilled Senior Fullstack Developers to join our development team. From large-scale digital platforms to market-leading distributed systems, our clients and partners trust us to build reliable software used every day by millions of users.

If you are looking for challenging projects, love to architect modern backends and interactive frontends, and want to be at the forefront of the AI-driven development revolution, this offer is for you!

WE are PRESENT because WE CARE!

ROLE DESCRIPTION - KEY RESPONSIBILITIES:

• Architect efficient, scalable, and reusable fullstack systems that drive complex, large-scale web applications.

• Design and develop robust microservices using Java and Spring Boot, integrating high-performance communication via gRPC and event-driven patterns with Kafka.

• Build responsive, state-managed front-end applications using React, TypeScript, and Zustand, translating Figma designs into pixel-perfect components with MUI Materials.

• Implement production-ready GenAI features, mastering prompt engineering, context optimization, and hallucination reduction to ensure deterministic responses.

• Maximize delivery speed and code quality through the intensive use of AI-assisted coding tools (such as Cursor, GitHub Copilot, Claude, or equivalents) while maintaining strict security standards.

• Ensure applications are production-ready and highly available using Kubernetes.

• Follow best practices using clean code, TDD, and industry standards guidelines.

• Help the team evolve, sharing knowledge and experimenting with new ideas and emerging technologies.

MAIN REQUIREMENTS:

• At least 5 years of professional experience in software engineering (with a strong focus on both Java and React).

• Deep knowledge of Java, Spring Boot, Microservices, and Kubernetes.

• Strong proficiency in React, TypeScript, Zustand, and component libraries like MUI Materials.

• Solid experience with Apache Kafka and gRPC communication protocol.

• Practical experience in Prompt Engineering, context optimization, hallucination reduction, and achieving deterministic LLM responses in production environments.

• Proficiency and enthusiasm in the intensive use of AI-assisted coding tools (Cursor, Copilot, Claude) to accelerate development safely.

• Prior experience with Git source control system (GitHub or GitLab) and Agile methodologies (Scrum/Kanban).

• Good communication and organizational skills.

• Must be based in Portugal.

• Proficiency in English.

NICE TO HAVE:

• Experience with testing frameworks across the stack (e.g., JUnit, Mockito, Jest, or React Testing Library).

• Familiarity with Vector Databases (e.g., Pinecone, Chroma, Milvus) or RAG architectures.

• Knowledge of CI/CD pipelines and automated security scanning for AI-assisted code.

• Experience with cloud platforms (AWS, GCP, or Azure).

PERKS:

• Healthcare Insurance

• Mobile phone

• Company/performance bonus

• Extra days of holidays

• Annual budget for flexible benefits (e.g. kindergarten payment, health and well-being, education expenses, savings & retirement, public transportation and family health insurance)

• Great offices with free fruit and coffee

• English lessons

• Technical training / learn sessions / workshops

• Udemy License

• Flexible working hours

• Work with a very talented team

• Prestigious clients

• Wellness measures

• Welcoming and relaxed work environment