Elvis Freitas Lopes Herllain

Independent, non-competing product studio built to exercise end-to-end software architecture in global production — spanning Clean Architecture, On-Device AI inference, P2P low-latency media streaming, and Serverless FinOps:

• pwE — Pray With Me (v1.0.24+200): Production ecosystem live on Google Play Store (177 countries) and Web PWA (411 Dart files, 69 ADRs, 16 SDD specs, 1,430+ automated tests across 236 suites, 99.07% Crash-Free). Combines Gemma 4 E2B (LiteRT-LM) native token streaming, offline TFLite (384d) vector search, an AES-256-GCM zero-knowledge vault, >98% Firestore read offload via GCS Static CDN, and an 18-agent AI governance workflow.
• BabeView (v0.2.0): Multi-camera N-to-1 monitoring hub in Flutter (186 Dart files, 95 test suites, 12 ADRs, and 27 Clean Code Slices open in babeview-architecture-showcase) powered by a polymorphic IMediaSource contract unifying Full-Duplex WebRTC P2P (~30 ms), RTSP/ONVIF IP cameras (H.264/H.265 via C/C++ media_kit), mDNS/ONVIF discovery, and pure-Dart procedural WAV audio synthesis.
• Ritmo da Família & Sleep O'Clock (v1.8): Family & circadian health product line featuring 24h linear Montessori temporal localization (astronomical CelestialArcWidget & countdown Time-Timer), low-APL OLED optical engineering (75%–85% lower surface light emission), and active pixel-shifting anti-burn-in protection.

Technical leadership in architectural evolution, operational reliability, and L3 engineering across high-volume corporate B2B platforms:

• Technical Leadership on Critical Systems: Evolutionary sustainment of the GED360 suite (BrNotas, BrGestor, BrPronto, BrArquivo, SISGED), BrProntoPDV, and Portal TIM.
• Architecture & Distributed Integrations: Technical requirements engineering, integration design, and living architectural documentation using C4 Model, UML, and BPMN.
• Site Reliability Engineering (SRE) & Change Governance: Leading change management windows (CAB/GMUD), automated Tier-3 (L3) incident resolution, and strict SLA protection.
• Deep Root Cause Analysis (RCA) & Oracle DB: Investigating complex production bottlenecks across application logs, observability traces, and high-volume Oracle DB SQL query tuning, paired with custom incident-recurrence and KPI analytics engines built in Python (Pandas, Plotly, Dash) and PowerBI (open clean-room reference in sre-incident-analytics-dash with 100% synthetic telemetry).

Five years turning operational telemetry into measurable system availability gains and software quality governance:

• Analytics Engineering & Automation: Streamlined data pipelines using Python, PowerQuery, and PowerBI, building executive quality dashboards for BrPronto PDV and BrFlow.
• Downtime Reduction (Six Sigma Yellow Belt): Core analytical contributor to the strategic Yellow Belt initiative targeting system unavailability reduction across critical banking operations (BANRISUL and DJO 184).
• Executive Data Storytelling: Translated technical SLA bottlenecks into actionable engineering and business recommendations.

Hands-on foundation in public-sector software quality assurance, local networking, and operational data systems:

• Public Transparency Platforms (MPRJ): Software testing, QA, and technical reviews for government civic-data platforms (Cidadão Gestor and Observatório SUAS).
• IT Infrastructure & Departmental Databases: Over four years managing LAN networks, workstation hardware, and local operational databases ensuring daily business continuity.