Shape the right product
Turn a business problem or early concept into a focused scope, sensible roadmap, and decisions the team can act on.
Senior software engineer · Product builder
I’m Rafael Lima. For more than 10 years, I’ve turned complex ideas into mobile apps, SaaS platforms, AI tools, data systems, and the infrastructure that keeps them running.
Experience across the full product lifecycle
I don’t wait for a perfect specification. I help define the problem, make the technical trade-offs, build the product, deploy it, and improve it once real users are involved.
Turn a business problem or early concept into a focused scope, sensible roadmap, and decisions the team can act on.
Choose an approach that fits the product, budget, risk, and expected scale—not an architecture built for a conference slide.
Mobile and web interfaces, backend services, APIs, databases, data pipelines, AI integrations, and cloud infrastructure.
Release, monitor, secure, maintain, and improve production software instead of treating launch day as the finish line.
What I build
The format changes, but the standard does not: a clear problem, a useful product, and a system that can be trusted in production.
Useful Android and iOS applications designed around a real user need, with the backend, privacy, release, and support work handled as part of the product.
Explore app developmentCustom platforms that replace fragile manual processes, connect teams and customers, and give the business room to grow.
Practical AI features and automated workflows that reduce repetitive work or make an existing product more capable.
Collection, normalization, validation, deduplication, and processing pipelines for large, difficult, or business-critical datasets.
AWS infrastructure, deployment automation, observability, reliability, and technical decisions that support the product after launch.
Products under my own name
These products keep me close to the decisions every founder faces: what to build, how to ship it, and what it takes to support it after release.
Guess the Word is a conversational Bible game where players try to discover a hidden person, place, object, or concept by asking questions. The game combines Bible knowledge, curiosity, and a friendly character-driven experience.
Built for: People who enjoy Bible stories, curiosity-driven games, and learning through conversation.
View Guess the Word
EverUsTogether is a private relationship companion designed to help couples and families intentionally record shared activities, meaningful moments, and the ways they spend time together.
Built for: Couples and families who want to care for their relationships through intentional, recurring actions and shared memories.
View EverUsTogetherSelected work
My work spans customer-facing software and the architecture, data, infrastructure, and operational decisions required to make it dependable.
Raw address, property, real-estate, and public-record data arrives fragmented, inconsistent, duplicated, and difficult to use reliably.
Collection and processing pipelines for normalization, validation, entity matching, deduplication, enrichment, and structured access.
Architecture, backend engineering, data modeling, large-scale processing, infrastructure, and intelligent tools built on the resulting data.
Made difficult source data consistent and usable for downstream products, analysis, automation, and decision-making.
A conversational Bible guessing game where players ask questions to discover a hidden person, place, object, or concept.
Create an open-ended question experience that remains understandable, responsive, and grounded in the game’s knowledge domain.
Product concept, interaction design, mobile development, backend decisions, release, privacy, and ongoing product ownership.
The Android application is published, supported, and represented by an official product page on this site.
About Rafael
I’m a software engineer and technology entrepreneur working internationally. I enjoy finding valuable problems, reducing them to clear decisions, and doing the hands-on work required to turn those decisions into useful software.
I combine engineering depth with product judgment, business awareness, and a strong bias toward execution. I’m available for projects across the United States, Canada, and Europe.
More about how I workWork with me
I work best with founders and businesses that need an experienced technical partner—not only someone to implement a fixed list of tickets.
Good engagements usually involve building a new app or SaaS product, improving a platform that has outgrown its foundations, creating an AI or data system, or providing senior technical leadership through an important stage.
Discuss your projectEmail: contact@rafaelrglima.com