SENIOR JAVA DEVELOPER (HYBRID)

SENIOR JAVA DEVELOPER (HYBRID LISBON OR PORTO)

Portuguese company hires for hybrid position

Location: Lisbon preferred \| Candidates based in Porto will also be considered

• ️ Only candidates already based in Portugal will be considered

Work Model: Hybrid

️ Language Requirements: English C1 — mandatory

Seniority: Senior (6+ years)

Sector: Banking

Rate Between €2700 - 3200 RV / €1100 CTI

• ️ Instructions: Please send your CV in English and make sure to include all skills and experience that match the requirements of the opportunity. This will significantly increase your chances of success

About the Opportunity

We are looking for a Senior Java Developer to join an international technology team responsible for a critical capital-markets risk platform.

The platform supports market and counterparty-risk calculations, risk analysis, regulatory reporting and credit processes. It operates through a highly distributed architecture designed to process large volumes of data with high throughput and strong performance.

You will work primarily on the Java components of a counterparty-risk calculation system, implementing technical, regulatory and business requirements. The technology environment combines Big Data solutions, data grids, compute grids, REST-based architectures and GPU-supported pricing and simulation capabilities.

This is a highly technical position combining hands-on development, software design, testing, code review, performance optimization and continuous delivery within a multidisciplinary Agile team.

Main Responsibilities

Software Design and Development

• Design, develop and maintain secure, scalable, testable and well-documented Java applications.
• Build high-throughput and high-performance distributed solutions.
• Implement technical, regulatory and business requirements.
• Help clarify, analyze and qualify business and technical needs.
• Contribute to technical studies and solution design before project implementation.
• Develop software according to coding, architecture, data-protection and security standards.
• Optimize existing code and improve its performance, quality and maintainability.
• Integrate software packages and contribute to configuration and parameter definition.
• Develop tools, frameworks and technical components required by the platform.
• Work closely with quantitative developers and other technical specialists.

Distributed Systems and Performance

• Develop solutions using distributed-system programming patterns.
• Contribute to architectures involving data grids, compute grids and Big Data technologies.
• Apply multithreading and parallelization techniques to improve system performance.
• Work with technologies such as Oracle Coherence, Apache Cassandra, Spectrum Symphony, Kafka and Tomcat.
• Support highly distributed risk-calculation processes.
• Investigate performance issues and help identify scalable technical solutions.

Quality, Testing and Code Review

• Produce high-quality software aligned with engineering best practices.
• Define, implement and improve test strategies.
• Develop and maintain automated tests.
• Participate in unit, integration and acceptance testing.
• Review code and ensure compliance with development principles and team standards.
• Ensure that solutions meet maintainability, security, scalability and testability requirements.
• Support product acceptance and release activities.
• Contribute to technical documentation and knowledge maintenance.

Continuous Integration and Delivery

• Apply automated testing, continuous integration and continuous delivery practices.
• Contribute to the implementation and improvement of CI/CD pipelines.
• Install and maintain deployment tools across different environments.
• Help reduce the time between development and production deployment.
• Support reliable and repeatable release processes.
• Identify opportunities to improve engineering and delivery practices.

Agile Collaboration

• Work within a multidisciplinary Scrum squad operating in an Agile-at-scale environment.
• Participate in two-week sprints, three-month programme increments and Agile ceremonies.
• Collaborate with developers, quantitative specialists, analysts and business stakeholders.
• Share technical knowledge and software-engineering best practices.
• Participate in internal and external developer communities.
• Maintain continuous learning in modern technologies and development practices.

Mandatory Requirements

• Senior-level professional experience in Java software development.
• Strong hands-on knowledge of Java.
• Practical experience with the Spring ecosystem.
• Experience designing and developing REST APIs.
• Strong experience with multithreading.
• Excellent software-design, coding, documentation and analytical skills.
• Strong computer-science fundamentals.
• Experience developing scalable and high-performance applications.
• Understanding of distributed systems and their programming patterns.
• Understanding of parallelization techniques.
• Experience with testing, from unit testing through acceptance testing.
• Experience with automated testing.
• Practical knowledge of continuous-integration and continuous-delivery practices.
• Experience with CI/CD tools and pipelines.
• Ability to optimize code and improve maintainability.
• Experience conducting or participating in code reviews.
• Ability to work effectively in Agile and Scrum environments.
• Expert proficiency in English.
• Strong attention to detail and commitment to clean, precise work.
• Clear, concise and objective communication.
• Ability to work autonomously.
• Collaborative team spirit.
• Ability to remain effective under short deadlines.

Relevant Distributed Technologies

Experience with one or more of the following technologies will be particularly valuable:

• Oracle Coherence;
• Apache Cassandra;
• Spectrum Symphony;
• Apache Kafka;
• Apache Tomcat;
• Big Data solutions;
• Data grids;
• Compute grids;
• GPU-supported pricing or simulation engines.

Nice-to-Have Requirements

• Experience in banking, financial services or capital markets.
• Knowledge of market risk or counterparty credit risk.
• Experience with risk-calculation or regulatory-reporting platforms.
• Knowledge of pricing, simulation or quantitative systems.
• Experience working with quantitative developers.
• Practical experience with Oracle Coherence.
• Experience with Apache Cassandra or other distributed databases.
• Experience with Kafka-based architectures.
• Knowledge of compute grids and distributed-computing platforms.
• Experience optimizing high-throughput and low-latency applications.
• Knowledge of GPU-based processing.
• Experience in Agile-at-scale environments.
• Familiarity with programme increments and cross-squad collaboration.
• Experience working in international and multicultural teams.

The Ideal Candidate

The ideal candidate is a Senior Java Developer with strong software-engineering fundamentals and hands-on experience building distributed, high-throughput and high-performance applications.

You are highly proficient in Java, Spring, REST APIs and multithreading and understand how to design solutions that are scalable, secure, maintainable, documented and testable. You are also comfortable working with distributed-system patterns, parallel processing, automated testing and CI/CD pipelines.

You combine technical depth with a collaborative mindset. You can clarify requirements, contribute to architecture and design decisions, review code, optimize existing components and implement framework or tooling changes when necessary.

You are autonomous, precise and comfortable working in a fast-paced Agile environment. Previous experience with capital markets, counterparty risk, Big Data, data grids, compute grids or quantitative systems will be especially valuable.

Questions for Candidates

When applying, please confirm:

• How many years of professional Java development experience do you have?
• Which Java versions have you used in production?
• How many years of hands-on experience do you have with Spring?
• What types of REST APIs have you designed and developed?
• Please describe your experience with multithreading and concurrent programming.
• Have you developed high-throughput or high-performance applications? Please provide an example.
• What experience do you have with distributed systems?
• Which distributed-system patterns have you applied professionally?
• Have you worked with parallelization or distributed-computing techniques?
• Which of the following technologies have you used: Oracle Coherence, Cassandra, Spectrum Symphony, Kafka or Tomcat?
• Have you worked with Big Data, data grids or compute grids?
• What types of automated tests do you usually implement?
• Do you have experience covering unit, integration and acceptance testing?
• Which continuous-integration and continuous-delivery tools have you used?
• Have you created or maintained CI/CD pipelines?
• What is your experience with code reviews and software-quality standards?
• Have you optimized existing Java code for performance or maintainability?
• Have you worked in Scrum or an Agile-at-scale environment?
• Do you have experience in banking, capital markets, market risk or counterparty risk?
• Have you collaborated with quantitative developers or worked with pricing and simulation systems?
• What is your English proficiency level?
• Are you currently based in Lisbon or Porto?
• Is the proposed B2B/RV or CTI rate aligned with your expectations?
• What is your earliest possible start date?

CV Keywords

Senior Java Developer, Java Developer, Java Engineer, Senior Software Engineer, Backend Developer, Backend Engineer, Java, Core Java, Spring, Spring Framework, Spring Boot, REST, REST API, RESTful Services, Microservices, Multithreading, Concurrency, Parallel Processing, Parallelization, Distributed Systems, Distributed Computing, High-Throughput Systems, High-Performance Computing, Scalable Applications, Software Architecture, Software Design, Design Patterns, Clean Code, Code Review, Code Optimization, Performance Optimization, Secure Development, Automated Testing, Unit Testing, Integration Testing, Acceptance Testing, Test Strategy, Continuous Integration, Continuous Delivery, CI/CD, Deployment Automation, Oracle Coherence, Apache Cassandra, Spectrum Symphony, Apache Kafka, Kafka, Apache Tomcat, Tomcat, Big Data, Data Grid, Compute Grid, GPU Computing, Pricing Engine, Simulation Engine, Agile, Scrum, Agile at Scale, Programme Increment, Banking, Financial Services, Capital Markets, Risk Systems, Market Risk, Counterparty Risk, Counterparty Credit Risk, Risk Calculation, Regulatory Requirements, Risk Reporting, Quantitative Development, English, Lisbon, Porto, B2B, CTI

#CI - PROC26508