Full-Stack Software Engineer

Full-Stack Software Engineer building scalable backend systems and modern web applications.

Experienced in API design, system reliability, and shipping production features across the full stack.

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Backend-first mindsetAPI designSystem reliabilityEnd-to-end product delivery

Product systems

PHP · Lumen · Vue · Nuxt

Currently crafting

Reliable services and product features that hold up in production.

Years building maintainable software across backend and frontend systems.

APIs

Service design, debugging, and delivery shaped around real product needs.

About

Full-stack engineering grounded in backend depth, product thinking, and maintainable systems.

I am a Full-Stack Software Engineer with strong backend experience, building scalable product features across services, APIs, databases, and modern frontend frameworks.

My work focuses on backend services, maintainable APIs, debugging complex issues, and improving system reliability while collaborating closely with product, design, engineering, and QA teams to ship production software.

Years shipping production software

Full-stack

Core focus

Backend

Primary strength

Product-led

Engineering mindset

Tech Stack

A stack shaped around APIs, services, and product delivery.

Backend architecture comes first, supported by practical frontend delivery, solid database fundamentals, and tools for running reliable product systems.

Backend

PHPLaravelLumenREST API DesignGraphQLAPI Architecture

Frontend

Vue.jsNuxtReactJavaScriptTailwind CSSBootstrapjQuery

Databases

MySQLPostgreSQL

Infrastructure & Tools

AWSDockerNginxGitGitHubSystem Debugging

Featured Projects

Engineering work centered on product systems and delivery.

The work below reflects transferable engineering experience across backend services, platform integrations, metrics systems, product infrastructure, and maintainable feature delivery.

Messaging & Platform Services

Backend

Designed and implemented REST APIs and backend services in PHP and Lumen for messaging platforms, customer-facing product capabilities, and backend workflows that needed to scale reliably.

PHPLumenREST APIs

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Metrics & Analytics Systems

Systems

Built metrics pipelines, tracking features, and API integrations that improved visibility into product usage and supported better operational decision-making.

Metrics PipelinesIntegrationsData Systems

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Product Infrastructure Improvements

Reliability

Improved maintainability and performance in existing systems by debugging complex issues, modernizing legacy code paths, and shipping stable enhancements across product infrastructure.

PerformanceDebuggingMaintainability

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Interactive Demo

Engineering Demo: Reusable Game Component

The component is designed to be installed via npm and embedded in any frontend application. It adapts automatically to the host application's theme and layout.

Explore the Code

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GitHub Metrics

A supporting view into code, consistency, and technical range.

GitHub metrics complement the broader engineering profile here, which is centered on production systems, APIs, and end-to-end product delivery.

Hellen Pastana

@hmpastana

Software engineer, with over 7 years of experience, living and working in Canada

Followers

Public Repos

Total Stars

Languages

Top repositories

By stars

snake-game

No description provided for this repository yet.

Stars

hmpastana

No description provided for this repository yet.

Stars

flightHub

No description provided for this repository yet.

Stars

adopets-project

No description provided for this repository yet.

Stars

Most used languages

By repo count

PHP · 5HTML · 3TypeScript · 2JavaScript · 2

Experience Highlights

Experience built around backend systems, APIs, and product execution.

End-to-end software delivery across services, frontend applications, legacy systems, and cross-functional product work.

2023 to Present

Full-Stack Software Engineer · Letterhead

Designed and implemented REST APIs using PHP and Lumen to support core platform capabilities across messaging, content delivery, and backend workflows.
Built full-stack product features across backend services and Vue/Nuxt frontend used by publishers and content teams.
Contributed to engagement-focused features, including interactive content experiences, that supported stronger reader interaction.
Worked on platform systems that supported campaign tracking, monetization capabilities, and reporting for customer-facing teams.

Engineering Focus

Backend Services, Reliability, and Legacy Systems

Worked on metrics and analytics infrastructure used to understand audience engagement, feature usage, and campaign performance.
Improved reliability and maintainability by refactoring legacy code, debugging complex production issues, and reducing friction in existing services.
Contributed to integrations with external email service providers and messaging platforms, helping extend platform capabilities across delivery channels.

Product Delivery

Cross-Functional Execution

Collaborated closely with product managers, designers, engineers, and QA to scope work, shape implementation details, and ship production features end to end.
Contributed to technical planning, architecture discussions, and code reviews with a focus on maintainable systems and practical product outcomes.

Engineering Impact

Product outcomes enabled through platform engineering.

The work spans backend services, product infrastructure, and full-stack delivery that support real teams and measurable product goals.

Improved audience engagement through interactive product features

Supported monetization and campaign execution capabilities

Enabled analytics and tracking for engagement and performance insights

Strengthened scalable messaging infrastructure and platform integrations

Contact

Looking for a full-stack engineer who can ship reliable product features end to end?

I work with teams building real products, contributing across backend services, APIs, frontend experiences, and the system-level decisions that keep delivery sustainable.

hellenmpastana@gmail.com

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