Hello, I'm Sergio
Founder, developer and creator with 20+ years shipping code.
I build software across web applications, mobile apps, cloud platforms, AI, blockchain, big data, operating systems, virtualization, and security.
Software Development
Hands-on across multiple languages, stacks, and architectural styles, from prototype to production.
Web Development
Delivered web applications for enterprise teams and consumer products, from backend services to user experience.
Databases
Deep experience with major database systems, data modeling, and choosing the right fit for performance, scale, and compliance.
Operating Systems
Linux is home base, macOS is a close second, and Windows is still in the toolkit when needed.
Qwerio
Local-first database client for Postgres, MySQL, SQL Server, SQLite, Redis, and MongoDB across desktop and web.
- > One workbench for SQL and document databases
- > Query, inspect schema, and edit rows in one interface
- > Local-first sync model with optional credential protection
PixelStash
A unified PC game collection that syncs Steam libraries and imports titles from major storefronts into one clean, searchable dashboard.
- > Steam sync + bulk imports from Epic/GOG
- > Grid/list views with instant search & filters
- > Privacy-first, no bloat focus
VeniceShelf
AI image generation platform for creating visuals, organizing collections, and discovering community artwork.
- > Prompt-to-image generation workflow
- > Smart organization with tagging & folders
- > Community sharing and discovery
JackCast
Storybook weather PWA that turns daily forecasts into AI-painted scenes, paired with practical weather data.
- > Simple, no ads and completely free weather data
- > Geolocation, saved places, and smart refresh
- > Offline-ready installable app
Terracore
Post‑apocalyptic Web3 game on Hive where players upgrade stats, earn tokens, and trade NFTs in a player-driven marketplace.
- > Open‑source game economy with in-game marketplace
- > Persistent progression and stat-based upgrades
- > Social + community-driven rewards
Ruin My Day
A clean way to start your day and be reminded of how the universe always has a plan
- > Web or browser extensions
Rise of the Pixels
Browser-based simulation game where you run a game dev studio, grow a team, and ship hits across gaming eras.
- > Studio management (hiring, R&D, marketing)
- > Ownable assets with zero gas fees
- > Deep community + ecosystem integrations
Founder
Building playful, privacy-first software with AI at the center.
- > Modern reactive frameworks powering blazing-fast SSR and SPA experiences with TypeScript-first architecture.
- > Production-grade AI implementations from image generation to intelligent automation.
- > Privacy-first architecture with advanced cryptography and secure authentication.
Co-Founder and CTO
Founded PeakD to build community‑owned Web3 products that make decentralized tech feel human.
- > Leading product strategy and engineering for Web3 social and gaming apps.
- > Designing decentralized architectures that keep ownership with the community.
- > Driving roadmap decisions that turn blockchain complexity into real user value.
Competence Lead
Led core‑banking architecture so teams and partners could integrate fast without compromising compliance.
- > Aligned architecture for core banking services and shared APIs.
- > Set delivery standards that raised reliability and regulatory readiness.
- > Streamlined onboarding for internal teams and external partners.
CTO
Modernized CST Tech’s platform and architecture while shipping fintech products at scale.
- > Rebuilt the core framework to scale cleanly without brittle workarounds.
- > Delivered financial analytics and regulatory products for banking clients.
- > Replaced legacy SQL stacks with a modern big‑data pipeline.
Team Lead
Led delivery of financial products while hardening the core platform to allow teams to ship faster and with confidence.
- > Strengthened the proprietary framework to reduce surprises in production releases.
- > Built regulatory reporting and compliance tooling for financial institutions.
- > Delivered data‑rich dashboards and tracking solutions for customer‑facing platforms.
Software Engineer / Architect
Spent nine years building telecom billing and rating platforms, growing from hands-on engineer to leading architecture and delivery for enterprise clients with strict SLAs.
- > Led architecture for high‑throughput rating, billing, and BPM‑driven order management systems.
- > Delivered end‑to‑end billing solutions and automated telecom configuration workflows.
- > Built secure integrations and unified business views across multiple enterprise systems.
- > Wholesale order management workflows that navigated complex partner ecosystems.
- > Thesis: Analysis and development of a clustering framework to evaluate results of different algorithms on a shared document collection.
- > Main topics: Distributed Systems, Web Data Structures and Algorithms, Artificial Intelligence, Advanced Cryptography, Computer Graphics.
- > Erasmus student exchange from January to June (6 months).
- > Main topics: Embedded Systems, Computer Security, Operating Systems.
- > Thesis: Development of metrics for analysis of mobility models in wireless ad-hoc networks.
- > Main topics: Mathematical Analysis, Physics, Computer and Network Architecture, Operating Systems, Algorithms, Data Structures, Database Systems.
Courses
Reach out for software architecture, engineering, leadership, or just to say "Hi".