About

TL/DR: Renato Augusto Viço Elias ~~is a software developer~~ from Sorocaba, São Paulo, Brazil, currently in Vigo, Galicia, Spain.
CTO @ Voyon | MBA @ PBS | Developer for life

Hello! I'm Renato.

CTO and Senior Technologist with 18+ years of experience building scalable, cloud-native solutions with a deep specialization in travel, tourism, and e-commerce platforms. Proven track record in leading software teams, building reservation and ticketing systems, and driving digital transformation for high-growth businesses. MBA graduate with strong business skills and expertise in system architecture, platform scaling, and strategic innovation.

My goal is to employ my skills and experience where I can drive technological innovation for a better world, build high-performing teams, and deliver exceptional results.

Contact

+34 664236504 (Work)
renato@s2n.com.br
LinkedIn Profile

Top Skills

Technical Staff Management
Managing Technical Personnel
Technology Leadership

Certifications

The Complete SQL Bootcamp: Go from Zero to Hero
Linguagem Ruby Para Iniciantes: POO, BD, Jogos 2D E Mais!
React Profissional
The Digital MBA 22/23
SQL

Made With

Zola is a fast static site generator in a single binary with everything built-in.
Juice Theme Inspired by juice theme
CSS Tricks For Favicon
PxToEM the best way of responsive works
PxToEM SCSS a little trickery for css + px to em
SVGRepo Inspired SVG
Modern Font Stacks Use native fonts please!

My Education

The Digital MBA 22/23 @ PBS (October 2022 - July 2025)
Computer Science @ Anhembi Morumbi (2019-2023) - Bachelor's degree
Computer Science @ Anhembi Morumbi (2012-2015) (Not-finished for move to Rio de Janeiro)
Design Graphic @ Uniso (2006-2007) (Not-finished for move to São Paulo)

My Experiences

VOYON

Chief Technology Officer - January 2024 - Present (1 year 7 months)

While pursuing my Digital MBA, I undertook a consulting engagement for a major transport operator (Viação Motta) that evolved into a full-fledged, profitable SaaS company. I co-authored the foundational business plan, defining a disruptive commission-based revenue model that aligned our success with client performance.

Architected a unique hybrid service model, designing both the AI-driven automation workflows and the human-in-the-loop operational processes. This approach automated 90% of customer interactions while ensuring complex cases received expert human support.

Led the end-to-end technical execution, building a scalable, cloud-native platform on AWS Fargate using Ruby on Rails, Aurora (PostgreSQL), Redis, and Sidekiq. Implemented a custom Business Process Management (BPM) engine to manage complex conversational flows.

Engineered the AI layer by integrating multiple LLMs (OpenAI & AWS Bedrock) and developed a RAG (Retrieval-Augmented Generation) system using pgvector for personalized, context-aware customer recommendations. Utilized PostGIS for advanced geolocation features.

Drove the platform's rapid growth and scalability, expanding from a single pilot to 13 clients and processing over 4,000 customer interactions daily with sustained conversion rates of up to 30%.

Orchestrated complex integrations with core industry transport management systems (e.g., Praxios, Smarttravel, RJConsultores) to ensure seamless data flow and operational consistency for clients.

Secured placement in the prestigious AWS Activate Startups Program, validating the platform's technological innovation and commercial potential.

S2N, Consultor técnico de TI - January 2005 - January 2024 (19 years 1 month)

Founded and operated S2N.com.br as a boutique technology consultancy, leading diverse, end-to-end software projects for clients in media, retail, education, and travel tech. I provided full-stack development, architectural guidance, and strategic consulting, adapting to new technologies and client needs for nearly two decades.

Key Engagements:

Veduca (Edtech): Engineered the complete payment system and backend for Brazil's first online MBA, leading its integration with Universidade Estacio's academic platform.
Clickbus (Travel Tech): Architected and delivered a B2B Travel API from the ground up, enabling critical third-party partnerships and new revenue streams.
Sismaker (for Artmaker Agency): Developed a complex, multi-tenant SaaS marketing platform for franchise networks, featuring bidirectional sync with the Salesforce CRM API.
Samsung (for Auto Agência): Built the Samsung J3 HotSite, a high-impact Single Page Application (SPA) for a major product launch campaign.
Early Community & Mobile Platforms: Built pioneering community platforms, including a social network and analytics tool for the Warcraft 3 gaming community (ExtremeReplays) and a coaching app with an e-commerce backend for the Palm OS ecosystem (DataTennis).
Lema21 (E-commerce): Provided expert consulting to scale a growing e-commerce web infrastructure by optimizing Nginx and PHP-FCGI performance.

Dinheirow

Senior Developer - May 2023 - December 2023 (8 months) Vigo, Galicia, Spain

Improved application stability and performance, achieving an 80% reduction in memory consumption for a critical microservice by re-architecting synchronous processes into an event-driven model using AWS SQS for message queuing, AWS Lambda for asynchronous processing, and Redis for caching.

Architected and developed a no-code risk management engine using React and TypeScript that integrated with a legacy core system to process large data volumes. This new tool empowered business users to configure custom onboarding workflows, significantly accelerating the customer acquisition lifecycle.

Hurb

Technical Lead - September 2014 - December 2022 (8 years 4 months)

Director of Operations, Packages (2021 – 2022) Entrusted with a dedicated focus on operations to scale the division, overseeing all post-booking workflows, logistics, and customer fulfillment for travel packages.

Defined and implemented a low-code "autopilot" tool using Retool to automate high-volume, manual package operations. This batch processing system empowered the operations team to process over 1,000 customer cases in under 20 minutes, drastically reducing manual workload and human error.

Director of Product & Operations, Packages (2020 – 2021) Promoted into a dual leadership role to align product strategy with operational realities for the complex "Packages" division amidst intense scaling challenges.

Led a strategic overhaul of the product lifecycle, implementing new risk management protocols and introducing a multi-channel communication flow via WhatsApp and web links to improve customer engagement and delivery reliability.

Technical Lead (2017 – 2020) Managed and mentored two engineering teams (10+ developers) while leading the "Macedonia" project for global expansion.

Directed the integration of multiple third-party systems critical for global operations, including leading payment gateways (Adyen, Braspag, Cielo) and major global travel suppliers and aggregators (Expedia, Hotelbeds, Juniper, Omnibees).

Drove the re-architecture of checkout and payment services into a high-availability microservices system on GCP and partnered with DevOps on a strategic AWS to GCP migration using Kubernetes.

Senior Software Developer (2014 – 2017) Acted as interim CTO for Voltem, a homestay startup invested in by Hurb, where I was responsible for hiring the initial engineering team and leading the development of the MVP.

Integrated a key partner hotel system into the main Hurb platform using Mule ESB for complex, real-time data synchronization.

upLexis

Senior Software Developer - March 2014 - July 2014 (5 months)

Built scalable web crawlers with Sidekiq to gather risk data for analytics, abstracting multiple source integrations.

Designed and implemented an observability dashboard to monitor crawler performance and system errors.

HOTWords

Rails Developer - August 2013 - March 2014 (8 months)

Enhanced the back-office advertising management system to support video ad formats, integrating FFmpeg workflows for media encoding.

Concrete Solutions

Senior Software Developer - January 2013 - July 2013 (7 months)

To enhance product visibility and sales for MercadoLibre (Meli) and the Rocket Internet Brazil ecommerce platforms (Kanui, Tricae, and Mobly). We developed a connector using Angular and worked with the team to integrate the Rocket API system with the MELI API.

Working with a team at Boa Vista Serviços (BVS), I was responsible for designing and implementing a new spider system architecture that could easily scale to meet future needs. The existing system was based on-premises and presented significant challenges for scalability. We worked with the team to design a new service architecture using AWS and Redis.

Concrete Solutions is a software house that specializes in Agile development and a strong engineering background. I had the opportunity to work on various challenging projects with the company.

Codeminer42

Rails Developer - April 2012 - January 2013 (10 months)

In my first role at Olook, a fashion ecommerce company, I was tasked with improving the catalog system. To achieve this, we developed the concept of collections and integrated it with the Abacus WMS system using Resque. Additionally, we migrated from Moip Gateway Payment system to Braspag and implemented a Member Get Member system that rewarded accumulative points with progressive discounts. We then transitioned the project to internal developers.

In my second project at Eduk.com, an edtech company that sells courses online, we focused on creating a minimum viable product (MVP). Our main objective was to develop a "lecture system for the teachers" and a "class system for the students". To achieve this, we utilized the Vimeo API, Backbone.js for the frontend, and Rails for the backend.

Codeminer42 is a software house specializing in Ruby on Rails.

Concrete Solutions

Software Developer - January 2011 - March 2012 (1 year 3 months)

My first project involved developing an e-commerce website for Imprensa Oficial of São Paulo State, a public agency responsible for public diaries. The project involved working with SOAP services in a complex environment, and we successfully completed the project on time by implementing a two-way synchronization and using the Magento store platform.

For my second project, I worked on a green-field project to develop a gateway payment system. We chose Ruby on Rails and applied Agile development principles with a strong culture, utilizing 90% of tests and behavior development techniques.

I was part of a support development team for Dafiti Ecommerce, a key player in fashion e-commerce. In this project, we refactored aspects of the frontend system (Alice) to add more content from the backend system (Bob). We also improved the CMS system responsible for tag management to provide better flexibility and accommodate the growing demands of the marketing team.

Concrete Solutions is a software house that specializes in Agile development and a strong engineering background. I had the opportunity to work on various challenging projects with the company.

Apontador

Software Developer - July 2007 - November 2009 (2 years 5 months)

My main role was a frontend/backend developer: I played a role in refactoring the product for better usability, An impressive growth of 1K to 6K users per day in just one year. We rewrote the old PHP 4 code style to PHP 5 in an MVC architecture and implemented a search indexer using Java primitives and Apache Solr. Create a seamless user experience with better seo optimization.

Also I had the opportunity to collaborate with enterprise customers to help create custom ads campaigns.

Mitsubishi: A web custom map tracer for the latin america drivers
Chervolet: Carona Chervolet a share ride web application
Microsoft: a treasurer campaign in maps with local brazilian forum
Terra Local Guide: A Soap-server for content management with gis capabilities

The platform was a Webraska GIS System, for better terrestrial layer we integrate with Google Maps V2, and helped to create the first certification for Google Maps Developer.

My second role was second level devops, this role is crucial for the enterprise customers who want 99.99% uptime on the platform.

For this a maintenance of a bunch of bare metal servers in brazil datacenter (uol diveo) with linux stack & f5 big ip router.

Soft Skills: Work in mid-size team, introduced to xp & kanban management Hard Skills: PHP 5. Java, Tomcat, Corba, SEO, GIS, Google Maps, Amazon S3, Oracle Rac, Akamai, CDN, Memcached, Apache, Nginx, CVS, SVN, SOAP

Apontador is a Brazilian local guide, find anything you want where you want.

Dias Publicidade

Graphic Designer - October 2005 - June 2006 (9 months) Sorocaba, São Paulo

Dias Publicidade, also known as Ararazul, was local advertising agency that specializes in creating dynamic flash websites and engaging mailing campaigns for music festivals. In order to keep up with the ever-evolving nature of the industry, we developed a cutting-edge CRM generator that enables us to attend to changes on websites with speed and precision.

The main customer is a Nolimits Eventos group, with the xxxperience, grooveattack & orbital festivals.

DS Filmes

Computer Technician - January 2004 - October 2005 (1 year 10 months) Sorocaba, São Paulo

Ds Filmes was a local VFX / video production company

Supporting and build workstations for non video linear editing (five stations) Hard Skill: Matrox, Blackmagic & Sony Betamax Soft Skill: Balance the systems for editor expectations

I developed a custom workflow system for complete control of production. Hard Skill: Access, Mysql, ASP (classic), PHP 4, Visual Basic, Linux, Windows Server 2000 & Windows Server 2003 Soft Skill: Understanding the company control flow, editors, owners, customers, which allows me to tailor the workflow system to meet their unique requirements.

Furthermore, I have experience supporting local networking environments using Linux iptables and the conntrack module.

My PGP KEY