Marcos Miyanishi Vargas Machado
@marcosmiyanishivarga
Senior software engineer delivering measurable business value through scalable systems.
What I'm looking for
I am a senior software engineer with a strong record of building production systems that drive immediate business results, including an agricultural insurance API that processed R$ 10 million in sales in three days and systems that increased in-app insurance sales by 143%.
I have broad full-stack expertise across Java, Spring Boot, Node.js, TypeScript, Python and multiple databases, and I have led small teams and collaborated with global architects to deliver integrations and platform migrations.
My experience spans insurance and banking domains where I designed chatbots (IBM Watson), microservices migrations, GuideWire integrations and customer onboarding flows, consistently focusing on product outcomes and stakeholder alignment.
I pursue pragmatic innovation, applying AI and automation to improve conversion and operational metrics while mentoring engineers and shaping architecture to support scalable growth.
Experience
Work history, roles, and key accomplishments
Full Stack Software Developer
CnSeg
Feb 2025 - Present (10 months)
Contributed to development of a new integration platform connecting automotive insurers to CNseg, improving partner connectivity and data exchange throughput.
Full Stack Software Developer
Suhai
Aug 2024 - Feb 2025 (6 months)
Worked on Guidewire platform aligned with global Guidewire architecture to implement insurance product workflows and integrations.
Full Stack Software Developer
EbaoTech
Jun 2021 - Jun 2024 (3 years)
Served as Tech Lead integrating new customers to the platform, coordinating a team of two developers and collaborating with the worldwide architect to deliver integrations.
Full Stack Software Developer
Sompo
Sep 2020 - Jul 2021 (10 months)
Developed an agricultural insurance quoting platform to support online insurance sales and quoting workflows.
Full Stack Engineer
HDI Seguros
Sep 2020 - Dec 2020 (3 months)
Worked on architecture migration to microservices to modernize platform scalability and deployment on cloud infrastructure.
Full Stack Software Developer
Banco Original
Sep 2019 - Sep 2020 (1 year)
Consolidated AI chatbot platform in partnership with IBM and built systems for offering and contracting insurance via the bank's app, driving significant in-app insurance growth.
Full Stack Software Developer
Sompo
Oct 2018 - Sep 2019 (11 months)
Created the first chatbot for online insurance quotes using IBM Watson, and implemented backend services to support digital quoting.
Full Stack Software Developer
Fourway
Nov 2014 - Oct 2018 (3 years 11 months)
Built a home insurance quote product, delivering front-end and back-end components to enable online quoting and policy issuance.
Full Stack Software Developer
Nextel Brasil
Jun 2013 - Nov 2014 (1 year 5 months)
Developed a workflow and real-time dashboard for cell antenna deployment processes to provide directors with operational visibility.
Full Stack Software Developer
Hayotech
Apr 2010 - Jun 2013 (3 years 2 months)
Created an animal management workflow application, delivering data-driven features and mapping integrations for operational users.
Full Stack Software Developer
MT&T
Jun 2008 - Apr 2010 (1 year 10 months)
Implemented a process workflow with SLAs to standardize operations and monitor service-level compliance.
Education
Degrees, certifications, and relevant coursework
UNOPAR (Faculdades Integradas Norte do Paraná)
Bachelor of Computer Engineering, Computer Engineering
2004 - 2008
Completed a Bachelor of Computer Engineering program focusing on software development and systems engineering from January 2004 to June 2008.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
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