Full Stack Developer (Java / Spring Boot / Angular)

Aderen; Las Rozas de Madrid; On-site; EUR 37,000 - 41,000; Full time

Benefits offered by this job

Long-Term Project

Rate: €200 per day + VAT

Job summary

Aderen is seeking a Full Stack Developer (Java / Spring Boot / Angular) for a freelance full-time position in Madrid. The role focuses on backend Java/Spring Boot and frontend Angular development within the Capital Markets sector.

The successful candidate will contribute to the full SDLC, work with relational databases, and collaborate with diverse teams. Remote work is not emphasized; start ASAP.

Qualifications

• Minimum 2 years of full stack development experience in Java/Spring Boot and Angular.
• Experience designing microservices and REST APIs.
• Knowledge of relational databases like SQL Server or Oracle is plus.
• Familiarity with capital markets or trading systems is desirable.
• Professional English communication skills required.

Responsibilities

• Gather, analyze and document business and technical requirements.
• Design software architectures and propose technical solutions.
• Develop, debug, test and maintain application code.
• Build full-stack apps using Java/Spring Boot and Angular.
• Develop microservices and REST APIs with Spring Boot.
• Collaborate with stakeholders and teams across disciplines.
• Participate in the full software development lifecycle from requirements to production support.

Skills

Java

Spring Boot

Angular

REST APIs

Git

SQL

Tools

AWS

Cucumber

Selenium

UNIX environments

XML/JSON/XSD

Job description

Aderen People

Job details

Full Stack Developer (Java / Spring Boot / Angular)

Freelance Full time

Job Opening ID 2542 Project lenght in months Largo Plazo Languages Español Knowledge area Skills Angular, JavaScript Rate - Eur 200-220 Job Description

BUSCAMOS: Full Stack Developer (Java / Spring Boot / Angular)

Responsibilities & Tasks

Key responsibilities

• Gather, analyze and document business and technical requirements.
• Design software architectures and propose technical solutions aligned with business needs.
• Document functional and non-functional requirements.
• Develop, debug, test and maintain application code.
• Design and implement full-stack applications using Java, Spring Boot and Angular.
• Develop and maintain microservices and REST APIs using Spring Boot.
• Participate in the complete software development lifecycle, from requirements gathering to production support.
• Work with relational and non-relational databases, including SQL Server and Oracle Database.
• Apply software architecture principles and Java performance optimization techniques.
• Collaborate with business stakeholders, technical teams and other developers.
• Support the continuous evolution, maintenance and improvement of the platform.
• Troubleshoot technical issues and ensure application reliability and performance.
• Participate in code versioning and collaborative development using Git.

Context

• Full Stack Developer position focused on Java/Spring Boot backend development and Angular frontend development.
• The project is within the Capital Markets sector, requiring experience in financial markets, trading-related systems or a strong understanding of the industry.
• The role covers the complete software development lifecycle, including requirements analysis, architecture, implementation, testing and production support.
• The ideal candidate combines strong technical skills with analytical thinking and the ability to collaborate with both business and technical teams.
• Minimum 2 years of experience in Full Stack software development.

Technical Skills

Backend Development – Java & Spring Boot

• Minimum 2 years of experience with Java and Spring Boot.
• Strong knowledge of Java 11 or higher.
• Experience developing microservices and REST APIs using Spring Boot.
• Knowledge of software architecture principles and design patterns.
• Understanding of low-level Java concepts, including thread management, garbage collection and resource synchronization.
• Experience debugging, maintaining and optimizing Java applications.

Frontend Development – Angular

• Experience developing frontend applications using Angular 8 or higher.
• Ability to build and maintain scalable, maintainable user interfaces.
• Experience integrating Angular applications with backend services and REST APIs.

Databases & Data Management

• Experience working with relational databases.
• Knowledge of SQL Server and Oracle Database.
• Familiarity with non-relational databases.
• Ability to design, query and optimize database interactions.

Testing & Quality Assurance

• Experience with software testing and debugging.
• Knowledge of functional testing using Java.
• Familiarity with automated testing tools and frameworks.

Development Tools & Integration

• Experience using Git for version control.
• Knowledge of REST API integration and data exchange formats.
• Experience working with XML, JSON and XSD schemas.

Capital Markets & Financial Systems

• Experience working on Capital Markets projects or within financial institutions, or strong knowledge of the sector.
• Understanding of financial markets, trading systems and related business processes.
• Familiarity with financial industry architectures and integration requirements.
• Knowledge of the FIX Protocol is desirable.

Desirable Skills

• Experience with AWS Cloud Services.
• Experience with Cucumber and Selenium.
• Knowledge of UNIX environments.
• Familiarity with the FIX Protocol.
• Experience working with XML, JSON, XSD and other data exchange formats.
• Experience working with Agile methodologies.

Communication & Personal Skills

• Excellent verbal and written communication skills.
• Strong analytical thinking and problem-solving capabilities.
• Ability to work under pressure and resolve issues effectively.
• Ability to make decisions in complex technical and business environments.
• Strong teamwork and collaboration skills.
• Ability to communicate effectively with both business and technical stakeholders.

Languages

• English – Professional working proficiency – Mandatory.

We Offer

• Full-time Freelance contract.
• Rate: €200 per day + VAT (according to the experience provided).
• Long-Term Project.
• Location: To be confirmed.
• Desired start date: ASAP.