I am a software engineering professional with extensive cross-domain experience, spanning core engine design in telecommunications to building scalable mobile and web applications in startup contexts. I’m a certified trainer in Java platform and SOA design patterns, Unix systems, and shell scripting, and I enjoy sharing knowledge as a technical writer for industry publications. My focus lies in distributed architectures, enterprise system integration, web services, and robust Java programming practices. I thrive leading technical initiatives, refactoring legacy systems, and delivering high-quality software aligned with business goals. I combine hands-on development with architectural leadership, and I’m comfortable navigating both fast-paced delivery and long-term maintainability. My passion for clear architecture, modular design, and proactive problem solving fuels measurable improvements in performance, scalability, and governance across diverse domains, from public health platforms to enterprise OSS environments.

José Fernandes Alves Júnior

I am a software engineering professional with extensive cross-domain experience, spanning core engine design in telecommunications to building scalable mobile and web applications in startup contexts. I’m a certified trainer in Java platform and SOA design patterns, Unix systems, and shell scripting, and I enjoy sharing knowledge as a technical writer for industry publications. My focus lies in distributed architectures, enterprise system integration, web services, and robust Java programming practices. I thrive leading technical initiatives, refactoring legacy systems, and delivering high-quality software aligned with business goals. I combine hands-on development with architectural leadership, and I’m comfortable navigating both fast-paced delivery and long-term maintainability. My passion for clear architecture, modular design, and proactive problem solving fuels measurable improvements in performance, scalability, and governance across diverse domains, from public health platforms to enterprise OSS environments.

Available to hire

I am a software engineering professional with extensive cross-domain experience, spanning core engine design in telecommunications to building scalable mobile and web applications in startup contexts. I’m a certified trainer in Java platform and SOA design patterns, Unix systems, and shell scripting, and I enjoy sharing knowledge as a technical writer for industry publications. My focus lies in distributed architectures, enterprise system integration, web services, and robust Java programming practices. I thrive leading technical initiatives, refactoring legacy systems, and delivering high-quality software aligned with business goals.

I combine hands-on development with architectural leadership, and I’m comfortable navigating both fast-paced delivery and long-term maintainability. My passion for clear architecture, modular design, and proactive problem solving fuels measurable improvements in performance, scalability, and governance across diverse domains, from public health platforms to enterprise OSS environments.

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Experience Level

Expert
Intermediate
Intermediate

Language

Portuguese
Fluent
French
Advanced
English
Fluent
Spanish; Castilian
Intermediate

Work Experience

Software Engineer at Sciensano
January 1, 2022 - January 1, 2025
Developed and enhanced the Form.IO module to enable data providers to input, validate and submit data to the HealthData platform; designed and implemented Data Collection Definitions (DCD) using FormIO Builder and advanced JSON configurations for complex validation and business rules; built RESTful web services for automated data collection and implemented batch data submission via CSV over SFTP; created and maintained Liquibase scripts to manage configuration database updates and ensure proper message routing across integrated service channels.
Software Architect at Deloitte / Mutualités Libres
July 1, 2018 - January 1, 2022
Designed and documented a PoC to refactor indemnity calculation modules from a monolithic architecture to a modular microservices-based approach using REST/JSON; developed a front-end PoC in Angular for CRUD on titular/employer information sheets; applied clean architecture and modularization principles to improve scalability, maintainability, and extensibility.
Application Architect at European Commission
July 1, 2017 - July 1, 2018
Developed a new version of the Technical Regulation Information System (TRIS) under the EU notification procedure; modernized DG GROW’s Technical Barriers to Trade (TBT) system to facilitate dialogue with Member States; migrated code and deployment scripts to a distributed version control system; provided continuous maintenance and stakeholder support.
Technical Writer at DevMedia
April 1, 2014 - January 1, 2018
Authoring in-depth Java development articles for Java Magazine; covered topics including Eclipse debugging, encapsulation, design principles, Java Collections, generics, exceptions and assertions; contributed multi-part series and practical tutorials for the Java community.
Senior System Integrator at Delta Lloyd Life
March 1, 2017 - July 1, 2017
Led architectural improvements across two enterprise systems; automated environment provisioning with WLST; implemented an Event Management Framework that decoupled services via asynchronous JMS and dynamic routing; designed a high-performance logging framework and standardized WebLogic naming conventions to improve governance and maintainability.
Senior System Integrator at Telefónica
May 1, 2013 - September 1, 2016
OSS system integration specialist; led the design and development of mission-critical solutions including the Billing Test Integrator, enabling testing efficiency and cross-system validation; refactored and modernized the Switch Advanced Support system, reducing codebase size and improving performance and reliability.
Software Engineer at Viatecla
July 1, 2012 - January 1, 2013
Contributed to KeyForTravel platform enhancements across Aviation, Hospitality and Rent-a-Car engines; redesigned the testing framework to unify tests; removed thousands of lines of redundant code to improve readability and maintenance.
Software Engineer at Rupeal
November 1, 2011 - May 1, 2012
Led mobile development for InvoiceXpress; delivered cross-platform Android/iOS solution using modular JS architecture with CommonJS; implemented RESTful integrations with JSON and local storage via SQLite, following Agile practices.
Lecturer at SUN Microsystems
October 1, 2006 - March 1, 2012
SUN Authorized Instructor delivering UNIX, Solaris, Shell Programming and Java Platform courses; consistently top-rated instruction (average 4.9/5).
Senior Consultant at Rupeal > Institute of Information Technologies (Ministry of Justice)
October 1, 2010 - November 1, 2011
Contributed to the Information Exchange Platform within the ESB environment; supported design, development, integration, platform migration, and governance; redesigned logging to dramatically reduce monthly log entries while preserving traceability.
Senior Consultant at Rupeal > Informatics Institute (Ministry of Labour and Social Solidarity)
June 1, 2010 - October 1, 2010
Administered and supported the Integration Platform; authored best-practice manuals and technical documentation; delivered training sessions to colleagues and contributed to governance improvements.
Software Engineer at Rupeal
April 1, 2010 - June 1, 2010
Developed an Android-based standalone version of InvoiceXpress; implemented core billing features and data synchronization with the backend.
Senior Consultant at PDM > Ministry of Justice [Institute of Information Technologies]
August 1, 2008 - April 1, 2010
Delivered end-to-end lifecycle for Java CAPS-based integration services; standardized Business Process templates; created a PoC for structured object retrieval from the repository to improve information management.
Consultant at PDM > PmeLink
February 1, 2008 - June 1, 2008
Contributed to Loyalty and Incentives project across three major Portuguese banks; participated from analysis and design through implementation and deployment within an Agile/Scrum setting.
Software Engineer at PDM > Paleblue
December 1, 2007 - February 1, 2008
Developed a web portal for a Swedish client; server-side Java, JSF and JasperReports; deployed on JBoss with PostgreSQL; emphasized maintainability and performance.
Consultant at PDM > Go4Mobility > SIC
October 1, 2006 - January 1, 2008
Designed and implemented an SMS-based advertising system integrated into SIC’s teletext platform; maintained teletext system; trained staff and supported operations.
Consultant at PDM > CTT Expresso
March 1, 2007 - June 1, 2007
Prototype for an industrial PDA (Compia M3) enabling barcode scanning and real-time transmission to a backend over CDMA; delivered on schedule with strong client feedback.
Software Engineer at PDM > Optimus
July 1, 2006 - October 1, 2006
Led the reactivation of seasonal services by adjusting billing processes across multiple systems; completed changes within tight deadlines.
Software Engineer at PDM > Optimus
January 1, 2006 - May 1, 2006
Contributed to Billing Event Engine, Subscription and Credit Manager enhancements; implemented SOAP-based web services and service orchestration.
Software Developer at PDM
May 1, 2005 - September 1, 2005
Managed customer bank data support tooling and data compression techniques to improve storage performance and retrieval reliability.
Trainee at Siemens
September 1, 2004 - May 1, 2005
Contributed to the Ethernet Manager project; developed a GUI to support configuration and automated maintenance of Ethernet networks.

Education

Master in Software Engineering at Faculty of Sciences and Technologies, Lisbon
January 11, 2030 - October 1, 2011
Licentiate in Computer Engineering at Faculty of Sciences and Technologies, Lisbon
January 11, 2030 - February 1, 2005

Qualifications

ETA Direct - Oracle
September 1, 2014 - April 8, 2026
Oracle Service Bus 11g: Design & Integrate Services
September 1, 2014 - April 8, 2026
Titanium Certified App Developer (TCAD) - Appcelerator
July 1, 2012 - April 8, 2026
Sun Java CAPS Development (SB-CAP-0570) - Sun Microsystems
November 1, 2009 - April 8, 2026
Pedagogical Aptitude Certificate (CAP) - IEFP
November 1, 2009 - April 8, 2026
Pedagogical Training for Trainers - Rumos Formação Profissional
June 1, 2009 - April 8, 2026
Sun Java CAPS Solutions (SB-CAP-0500) - Sun Microsystems
September 1, 2007 - April 8, 2026
Attendance at TEA and I*TEA training course - PDM
October 1, 2006 - April 8, 2026
Enterprise JavaBeans (576) - Learning Tree International
October 1, 2004 - April 8, 2026
Java Development with Swing Technology (477) - Learning Tree International
September 1, 2004 - April 8, 2026

Industry Experience

Software & Internet, Professional Services, Telecommunications, Healthcare, Education