JMJoao Marques
@joaomarques
Senior Software Engineer | Spring framework & Mobile Systems | Architecting Scalable Solutions
GermanyWhat I'm looking for
I am a Senior Software Engineer with over a decade of experience in designing and building secure, scalable backend and mobile systems. My expertise lies in modernizing existing architectures and specializing in cross-team collaboration within cloud-connected health tech platforms. I have a proven track record of re-engineering legacy infrastructure into modern architectures, significantly reducing server memory usage.
Throughout my career, I have led architectural design and technology decisions across teams, mentoring junior developers and acting as the go-to expert on product-wide technical knowledge. My experience includes architecting systems with Kubernetes deployments, designing REST APIs, and developing mobile applications with custom native plugins. I am passionate about improving operational efficiency and enhancing product usability through innovative solutions.
Experience
Work history, roles, and key accomplishments
MGSenior Software Developer
Medisana Space Technologies GmbH
Sep 2013 - Present (11 years 8 months)
Senior Software Developer with expertise in designing and building backend architectures and mobile applications. Led architectural design and technology decisions, mentoring junior developers and improving operational efficiency. Specialized in modernizing legacy systems and implementing observability solutions.
IT Consultant & Team Leader
CGI Group Inc.
Jun 2010 - Jun 2013 (2 years 11 months)
Led small teams in delivering enterprise applications, overseeing architecture design and code quality. Acted as a technical lead on multiple projects, providing training and mentoring for client developers transitioning to in-house solutions.
Technical Assistant
NBS – New Boston Select
May 2007 - Apr 2010 (2 years 11 months)
Supported the rollout of Portugal’s first optical fiber network, assisting field technicians and analyzing line metrics for network stability. Diagnosed ADSL/fiber network infrastructure and supported IPTV/VOIP services.
Education
Degrees, certifications, and relevant coursework
OUOracle University
Certificate, Application Development
2012 - 2012
Completed Oracle Advanced ADF Workshop to deepen knowledge in application development.
OUOracle University
Certificate, Database Management
2011 - 2011
Completed Oracle SQL Tuning Workshop to enhance database performance skills.
Instituto Superior de Engenharia de Lisboa
Incomplete Degree, Computer Engineering
Studied Computer Engineering but did not complete the degree.
CapEduc
Certificate, Software Development
2010 - 2010
Completed Java & Oracle Technologies Certificate to enhance programming skills.
Tech stack
Software and tools used professionally
Availability
Location
Germany
PortugalSalary expectations
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