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Marcos Miyanishi Vargas Machado

@marcosmiyanishivarga

Senior software engineer delivering measurable business value through scalable systems.

Brazil
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What I'm looking for

I seek senior engineering roles focused on building scalable, product-driven systems in collaborative teams, with opportunities to lead architecture and deliver measurable business impact.

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

BO

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.

NB

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.

HA

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.

Education

Degrees, certifications, and relevant coursework

UP

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.

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