Elvis Freitas Lopes Herllain
Software Engineer & Solutions Architect. Bridging the reliability and rigor of mission-critical corporate B2B systems (Serasa Experian) with the craft and speed of a Solo Mobile Developer (JHH Solutions). Specialist in Flutter, On-Device AI (Gemma/LiteRT), Clean Architecture, and Resilient Cloud Systems.
Technical Skills
My Journey
Solid Academic Foundation (UERJ)
Foundational education in Computer Science combined with broad initial experience handling network infrastructure, hardware, and tech support.
2016 - 2021: Data Analysis & BI (BrScan)
Optimization of data analysis and software quality processes using Python, PowerQuery, and VBA, developing dashboards for operational corporate systems.
2018 - 2022: Systems Analysis and Development (Instituto Infnet)
Degree of excellence (MEC Grade 5) with over 2,780 hours. Polyglot training focused on practical projects (PBL) covering Architecture fundamentals, Java EE, .NET C# and Native Mobile (Projects like Libfy, VenturaHR, MDP-Android).
2021 - Present: Engineering & SRE (Serasa Experian)
IT Analyst: Technical leadership in the evolution and support of critical B2B systems, SRE incident prevention, L3 troubleshooting, and Oracle DB optimized queries.
2023 - 2024: Software Architecture (FIAP)
Postgraduate degree focused on scalable and Cloud-Native architectures. Development of advanced microservices with Terraform, Kubernetes, SAGA Patterns, and Resilient APIs.
Education
Software Architecture (Postgraduate)
FIAP
Specialization focused on distributed architectures, resilience, microservices, Terraform, AWS, and Kubernetes.
Systems Analysis and Development
Instituto Infnet (MEC Grade 5)
Intensive project-based bachelor's degree (2,783h). Polyglot fullstack development (Java, .NET, Python, Kotlin) and software engineering with RUP, Scrum processes, and MVVM/MVC Architecture.
Computer Science
UERJ
Strong mathematical, algorithmic foundation and deep understanding of computing and logic.
Engineering & Product Showcase
Solo Mobile Products
Case: BabeView (Baby Monitor P2P Hub)
BabeView is a Multi-Source (N-to-1) Monitoring Hub developed natively in Flutter. The project focuses on engineering ...
Case: MDP Android (Pregnant Community App)
Native mobile project built to actively redefine and digitize the flow and coordination between Doulas and their resp...
Case: pwE — Pray With Me
pwE (Pray With Me) is a premium digital companion and private sanctuary for the practice of Lectio Divina (Prayerful ...
Case: Sleep O'Clock (Smart Bedside Clock & Sleep Trainer)
Sleep O'Clock is a minimalist bedside mobile application built in Flutter, engineered to simultaneously solve two key...
Cloud & Enterprise Architecture
Case: Mãe da Prole Platform Infrastructure
In the complete Engineering cycle of this niche platform (for supporting the monitoring by Doulas and Pregnant Women)...
Case: Nexus Enterprise
Corporate backend ecosystem focused on scalable processing and direct integration with Artificial Intelligence agents...
Case: FIAP SOAT Cloud-Native Platform
Complex final Software Architecture project (FIAP Postgraduate). The microsystem was surgically focused on the corpor...