Open to opportunities

Matthew Johnson

@matthewjohnson1

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Senior Full-Stack Engineer and Solutions Architect driving cloud modernization.

United States

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What I'm looking for

I’m seeking senior engineering or architecture roles where I can lead cloud-native modernization, design secure, scalable APIs, embed AI/ML, and drive cross-functional teams in compliant, observability-focused environments.

I am a Senior Full-Stack Engineer and Solutions Architect with 12+ years designing, developing, and scaling enterprise SaaS platforms across financial services, insurance, and digital payments.

I specialize in modernizing legacy systems into cloud-native microservices on Azure and AWS, implementing secure APIs, and embedding AI/ML into production systems to improve transaction efficiency and adoption.

I have led cross-functional teams, delivered high-availability microservices (handling 100K+ concurrent requests), and improved platform metrics—boosting portal adoption 45% and improving client retention by 18% in key engagements.

I prioritize compliance (HIPAA, PCI DSS, NACHA, FFIEC), observability, and automated deployment pipelines using Docker, Kubernetes, Terraform, and CI/CD tools to deliver scalable, secure, and cost-effective solutions.

Experience

Work history, roles, and key accomplishments

Current

Sr. Full-Stack Engineer

Current

IBM Consulting

Apr 2020 - Present (5 years 5 months)

Led an 8-person cross-functional team to modernize legacy banking systems into cloud-native .NET Core microservices on Azure, boosting portal adoption 45% in two quarters and delivering high-availability BNPL and insurance SaaS solutions handling 100K+ concurrent requests and 10K+ monthly claims.

C++.NET Core Azure Docker Kubernetes Terraform SQL Server Kafka Microservices

Sr. Software Engineer

Payoneer

Jan 2016 - Apr 2020 (4 years 3 months)

Implemented .NET Core microservices for Payoneer’s global payout platform, contributing to $30B+ annual transaction volume by enabling multi-currency transfers, migrating monoliths to SOA and improving API response times by 10% while reducing settlement delays 20%.

C++.NET Core Golang S3 RDS)Docker Kubernetes RabbitMQ Kafka SQL Server

Software Engineer

Jack Henry

Aug 2014 - Jan 2016 (1 year 5 months)

Engineered NetTeller online banking APIs and payment workflows in C#/.NET, implementing ACH/recurring payments that cut transaction errors 30% and integrating ADFS/SAML+MFA to increase secure-login adoption 40%.