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■ Senior Software Engineer

Viktor
Zavala

Full Stack Engineer with 13+ years of experience designing and building scalable web applications and developer platforms. Passionate about modern frontend architecture, engineering excellence, and delivering software that creates lasting impact.

zavala.viktor@gmail.com github.com/ZSnake

Proficiency

Product Engineering
Frontend Architecture
Developer Experience
Quality Engineering
Cloud Infrastructure
AI Engineering

■ Work Experience

Senior Software Engineer JWX

10/2023 — Present
  • Build and maintain internal developer tools that improve engineering workflows, testing, and productivity across multiple teams.
  • Led the migration of the end-to-end testing platform from WebDriverIO to Playwright, improving reliability, maintainability, and scalability.
  • Modernized the frontend platform by leading the migration from a legacy component library to a new design system.
  • Drive frontend architecture, technical direction, and engineering best practices while collaborating across engineering, product, and design teams.

Software Development Engineer Amazon

02/2022 — 10/2023
  • Developed customer-facing features for the Amazon RDS Console used by AWS customers to manage relational databases.
  • Led the frontend implementation of major initiatives, including Amazon Aurora Limitless Database.
  • Collaborated with engineers, product managers, designers, and stakeholders across multiple RDS organizations to deliver large-scale projects.
  • Influenced frontend architecture and engineering best practices to build scalable, maintainable customer experiences.

Senior Frontend Engineer Coolblue

08/2019 — 02/2022
  • Built customer-facing features for one of the Netherlands' largest e-commerce platforms.
  • Architected and led the development of multiple internal back-office applications and CMS platforms.
  • Reduced technical debt by modernizing legacy code, removing jQuery, and improving the internal component library.
  • Partnered with platform and Design System teams to standardize frontend architecture and development practices.

Senior Frontend Engineer Modus Create

02/2018 — 12/2019
  • Developed enterprise web applications for clients including Hobsons and Pfizer as an embedded member of their engineering teams.
  • Collaborated with product managers, designers, and engineers to plan and deliver new product features.
  • Integrated into client development teams while contributing to architecture, code quality, and delivery.
  • Built scalable frontend applications using modern JavaScript frameworks and engineering best practices.

Development Manager Acklen Avenue

04/2017 — 05/2018
  • Established the company's first engineering management function during a period of rapid growth.
  • Led and mentored a team of more than 25 software engineers, supporting career development and technical growth.
  • Designed engineering KPIs and career progression frameworks to improve team performance.
  • Scaled engineering processes while fostering a culture of collaboration and continuous improvement.

Lead Frontend Engineer Trigrow Systems

12/2016 — 12/2018
  • Architected the frontend for an IoT platform built on top of an existing backend infrastructure.
  • Established the project's CI/CD pipeline, development workflow, and engineering standards from the ground up.
  • Developed interactive dashboards for monitoring connected devices and environmental data.
  • Helped define the technical hiring process as the engineering team expanded.

Senior Full Stack Engineer Acklen Avenue

12/2015 — 04/2017
  • Led technical delivery across multiple healthcare-focused client projects within cross-functional teams.
  • Designed application architecture and collaborated closely with QA, Product Owners, Business Analysts, and Engagement Managers.
  • Delivered applications using Node.js, C#, .NET, Angular, and React while applying SOLID principles and Test-Driven Development.
  • Mentored junior engineers through code reviews, pair programming, and day-to-day technical leadership.

Full Stack Engineer Acklen Avenue

08/2012 — 04/2015
  • Developed web applications for a variety of client projects using modern frontend and backend technologies.
  • Applied Test-Driven Development, pair programming, and Agile methodologies to deliver reliable software.
  • Collaborated with multidisciplinary teams to deliver high-quality solutions for clients across multiple industries.
  • Built a strong engineering foundation through continuous learning, code reviews, and close mentorship from senior engineers.

■ Engineering Practices

Frontend Architecture Full Stack Development REST API Design GraphQL API Integration System Design Microfrontends Component Library Development Design Systems Performance Optimization Responsive Web Design Cross-browser Compatibility Progressive Web Apps

■ Quality & Testing

End-to-End Testing Unit Testing Integration Testing Test Automation Test Strategy CI/CD Pipelines Quality Engineering Release Management

■ Engineering & Collaboration

Agile / Scrum Technical Leadership Mentoring Stakeholder Communication Technical Documentation Requirements Analysis Software Architecture SOLID Principles Design Patterns Domain-Driven Design (DDD) Event-Driven Architecture Git Workflows AI Driven Development

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