TACHYON
Framework
Polyglot, file-system-routed full-stack framework with Tac frontend components, Yon backend handlers, static export, and preview tooling.
Samuel Ezenma
FullStack Engineer · Ontario, Canada
Experienced Senior Software and DevOps Engineer with 5+ years of expertise in building scalable backend systems, modernizing infrastructure, and ensuring high system reliability. Skilled in Java, Spring, Python, React, and cloud technologies across AWS, Azure, and GCP. Proven success in leading payment system upgrades, service migrations, CI/CD automation, and performance optimization. Strong background in SRE practices, infrastructure as code, and cross-functional collaboration across banking, SaaS, and digital media industries.
- Currently
- Senior Software Engineer at EQ Bank, Toronto
- Education
- BSc Computer Science, University of Manitoba
- Location
- Ontario, Canada
Experience
Where I’ve worked.
Payments Modernization at EQ Bank, Site Reliability at Dayforce, DevOps at Budvue, and IT development at RK Publishing.
- Led Interac payment system upgrade while keeping downstream banking integrations aligned.
- Migrated backend services from MuleSoft to Spring Framework to improve maintainability, scalability, and runtime performance.
- Introduced shift-left testing with Cucumber, significantly reducing test failures before release.
- Built deployment, packaging, and monitoring software in React and Django to improve reliability and operational speed.
- Resolved service bottlenecks across the stack and introduced monitoring for availability, latency, and system health.
- Provided tier 2 and 3 escalation support for cloud data services in a production-heavy environment.
- Architected highly available backend infrastructure and introduced backup, disaster recovery, and staging strategies.
- Saved over $100,000 CAD annually by integrating Redis into production cloud infrastructure.
- Migrated monolithic systems to AWS-based microservices and serverless data pipelines with Lambda, S3, RDS, and Docker.
- Created real-time dashboards and reports in Power BI, leveraging AWS data sources to provide actionable insights to stakeholders.
Projects
Open-source work.
Frameworks, Data Systems, and Developer Tooling published and maintained in the open under D31MA Organization.
FYLO
Storage
Single-binary document store with one canonical file per document, key-only prefix indexes, and client shims for eleven languages plus browser, mobile, and Flutter.
TTID
Identifiers
Compact time-tagged identifiers that carry their own created, updated, and deleted timestamps, with a CLI and clients for eleven languages plus the web.
CHEX
Validation
Regex-driven JSON validation against plain schema files, with a CLI and clients for eleven languages plus web, iOS, Android, and Flutter.
CADUCEUS
Mail server
Serverless multi-domain mail server built with Tachyon routes, FYLO-backed local persistence, and AWS SES/SNS adapters.
DUVAY
Design system
Zero-dependency CSS framework with design tokens, theming, and accessible web components.
Skills
Tools I work with.
Day-to-day languages, frameworks, and the cloud and operations stack behind the work above.