Fix broken or unstable software
Find the cause, repair the flow, and make releases safer.
Software repair
We help businesses fix, modernize, and maintain software they depend on.
Efecade helps companies stabilize codebases, unblock projects, and build software with senior-level engineering judgment.
Approach
Diagnose first. Then fix what matters.
Bring the repository, symptoms, unfinished feature, or production issue.
The first result is clarity: what is broken, what is risky, what can wait, and what should be fixed first.
Services
Work Efecade is suited for:
Improve complicated codebases
Clarify boundaries and reduce accidental complexity.
Continue abandoned or blocked projects
Assess what exists and create a path forward.
Add features to existing applications
Add behavior without ignoring existing constraints.
Technical consulting and architecture guidance
Review design, data flow, dependencies, and tradeoffs.
Performance and reliability improvements
Find slow paths and reliability problems that affect users.
Full software development when needed
Build focused applications when a clean implementation is the right answer.
AI-assisted software rescue and stabilization
Stabilize projects that grew faster than their structure.
Why choose Efecade
Senior-engineer judgment without agency overhead.
Direct technical attention, clear reasoning, careful execution.
Understand before changing
Read the code. Reproduce the problem. Find the constraint.
Keep changes maintainable
Solve the problem without making the next change worse.
Communicate clearly
Explain the tradeoffs and the next step.
Apps we built
Software products developed by Efecade
Current and upcoming products:
Flappy-style space game
Endward Propulsor
A one-tap journey to the end of the universe. Master one-touch flight across modes. Customize your challenge, unlock ships and trails, and climb Game Center leaderboards.
Join the TestFlight beta
Prompt library and task workspace
Prompt Journal
Save, search, reuse, and refine prompts in one durable workspace.
Visit promptjournal.appPersonal finance
Finances Controller
Track your personal finances with clarity, simplicity, and control.
Coming soonText archive and cultural essays
fernandod.com.br
Explore articles, stories, curiosities, humor, history, and culture gathered for Brazilian readers.
Visit fernandod.com.brOpen-source software:
High-performance Java library
Java String Compressor
Developed in-house and shared with the engineering community, our open-source Java library cuts memory use for large string datasets by up to 50%, with zero-allocation compression and binary search directly over compressed data.
Explore the project on GitHubContact
Need help with your software?
Send the problem, the context, and what is blocked.