Daniel Zimpel Wayhs, Developer in Porto Alegre - State of Rio Grande do Sul, Brazil
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Daniel Zimpel Wayhs

Verified Expert  in Engineering

Full-stack Engineer and Developer

Porto Alegre - State of Rio Grande do Sul, Brazil

Toptal member since November 1, 2024

Bio

Daniel is a highly experienced senior full-stack engineer with nearly two decades of proven success in building robust and scalable web applications. His career has spanned diverse industries, allowing him to develop a deep understanding of various business needs and technological challenges. Daniel possesses a comprehensive skillset encompassing both front- and back-end technologies, with particular expertise in Ruby on Rails, Python, React, JavaScript, and TypeScript.

Portfolio

Toptal
Engineering Management, Web Project Management, Agile Project Management, React...
Toptal
Engineering Management, Web Project Management, Agile Project Management...
Toptal
Ruby, Ruby on Rails (RoR), JavaScript, PostgreSQL, Grafana, Scrum, Scrum Master

Experience

  • Ruby - 10 years
  • Ruby on Rails (RoR) - 10 years
  • Test-driven Development (TDD) - 10 years
  • PostgreSQL - 10 years
  • Elasticsearch - 6 years
  • React - 6 years
  • TypeScript - 4 years
  • Python - 4 years

Availability

Part-time

Preferred Environment

Linux, Slack, Visual Studio Code (VS Code)

The most amazing...

...thing I've built is an Industry 4.0 real-time 3D digital twin web application that allows shopfloor equipment monitoring, interaction, and anomaly detection.

Work Experience

Engineering Manager, Product Engineering Team

2022 - 2024
Toptal
  • Headed and mentored a team of 11 engineers, driving the development and launch of new delivery models and enhancing the client experience.
  • Cultivated a culture of accountability and quality, ensuring effective stakeholder communication and collaboration. This resulted in successful product launches and increased revenue.
  • Orchestrated complex, multi-team projects involving diverse domains, effectively managing interdependencies, facilitating cross-team collaboration, and ensuring successful delivery.
Technologies: Engineering Management, Web Project Management, Agile Project Management, React, TypeScript, Ruby on Rails 6, PostgreSQL, SQL, Grafana, Google BigQuery

Engineering Manager, Technical Service Extraction Team

2021 - 2021
Toptal
  • Headed a high-performing team of 13 senior and principal engineers on a mission-critical service extraction project with a high degree of complexity.
  • Introduced innovative solutions and processes to optimize workflows and track project progress, ensuring on-time and efficient delivery.
  • Mentored and coached engineers, facilitating career growth and skill development.
  • Ensured accountability, quality, and stakeholder communication, contributing to successful project completion.
Technologies: Engineering Management, Web Project Management, Agile Project Management, Team Mentoring, Ruby on Rails 6, Ruby

Back-end Developer

2019 - 2021
Toptal
  • Developed a service for rule-based talent prioritization.
  • Revamped the talent onboarding flow, resulting in increased funnel conversion.
  • Utilized test-driven development (TDD) to implement various new functionalities, reducing bug rate and total code coverage.
Technologies: Ruby, Ruby on Rails (RoR), JavaScript, PostgreSQL, Grafana, Scrum, Scrum Master

Team Lead | Software Architect | Full-stack Engineer

2018 - 2019
Sequor Softwares Industriais
  • Spearheaded a team of engineers in successfully developing and launching the Lumen Industry 4.0 platform.
  • Defined the platform architecture and implemented critical components, including data ingestion pipelines, a real-time 3D digital twin visualization, and a shopfloor 3D editing tool.
  • Built a high-performing engineering team through effective interviewing and hiring practices, resulting in a team that consistently delivered on project milestones.
Technologies: JavaScript, Express.js, React, Three.js, 3D, Internet of Things (IoT), Real-time Data

Senior Full-stack Software Engineer

2016 - 2018
Globo
  • Maintained and evolved the core search infrastructure, ensuring optimal performance and reliability for 25 million unique users per day and 500 thousand searches per day.
  • Provided expert support and resources to enable product teams to fine-tune search results within their applications, improving user engagement and increasing content discoverability.
  • Created and maintained an internal search service utilized by various products across globo.com, streamlining search functionality and reducing development efforts.
Technologies: Python, Go, JavaScript, Elasticsearch, MongoDB, Redis, Ruby on Rails (RoR), Search, Metrics

Tech Lead | Full-stack Engineer

2010 - 2015
CWI Software
  • Led full-stack development for diverse clients and delivered multiple projects across various industries, including Terra Networks, Editora Abril, Coca-Cola, and others.
  • Worked on developing Terra Mobile, the first mobile version of the terra.com.br portal, expanding access to its content for a new user base.
  • Collaborated on the development of Terra Tablet, a dedicated portal with a magazine-like user interface, enhancing tablet users' news and video consumption.
  • Developed the Terra web email client and Editora Abril's IBA digital distribution service.
Technologies: Ruby on Rails (RoR), Ruby, Python, JavaScript, MongoDB, Microsoft SQL Server, Oracle, RabbitMQ, Amazon Web Services (AWS), PHP, IMAP, Mobile Web

Experience

Editora Abril's IBA

Editora Abril's IBA is a digital newsstand and digital content marketplace launched in 2012. It was an early version of the Kindle store or Apple Books, but it focused on magazines, newspapers, and ebooks.

Globo.com Search API

https://www.elastic.co/pt/customers/globo
Globo.com's internal search API powers a comprehensive search experience across its websites and apps, serving 25 million unique users daily. It provides robust functionality, including:

• Content indexing: It indexes a vast amount of content from globo.com's diverse properties, including news articles, videos, and other media.
• Search features: It offers a full suite of search features, delivering highly relevant user results.
• Performance optimization: It enables A/B testing and search optimization through a dedicated admin interface with detailed search metrics.

Skills

Libraries/APIs

React, Three.js, Sidekiq

Tools

Slack, Grafana, RabbitMQ

Languages

Ruby, TypeScript, Python, SQL, JavaScript, Go, PHP

Frameworks

Ruby on Rails (RoR), Django, Ruby on Rails 6, Express.js

Paradigms

Test-driven Development (TDD), Agile Project Management, Scrum, Microservices

Storage

Elasticsearch, PostgreSQL, MongoDB, Redis, Microsoft SQL Server

Platforms

Linux, Visual Studio Code (VS Code), Oracle, Amazon Web Services (AWS)

Other

Engineering Management, Web Project Management, Google BigQuery, Team Mentoring, Scrum Master, 3D, Internet of Things (IoT), Real-time Data, Search, Metrics, IMAP, Mobile Web, Scalability, APIs

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