Available for freelance & contract work

// reverse-engineering · backend · automation I take systems apart
and rebuild them better.

I'm Aldo — a solo engineer who decodes closed mobile APIs, then turns the findings into clean backends, streaming infrastructure, and automation that real businesses run on.

42K+
Lines shipped
35+
APIs decoded
2
Full platforms
6+
Client systems
Illustrated portrait of Aldo working on a laptop
status = online
stack = Python·FastAPI
mode = build & ship
How I work

A protocol for every problem.

I don't ship one-off scripts. My instinct is to turn a messy target into a clean, reusable platform — the same pattern I've applied independently across very different domains.

decode

Understand the target

Capture traffic, break the signing and encryption, and map exactly how a closed system talks — signatures, tokens, protobuf, expiring URLs.

unify

Platform-ise it

Fold every target behind one clean interface: plugin-per-source, shared auth, caching, scheduling, and an ops control panel. Prototype → platform.

ship

Make it run in production

Rate limits, failover, token auto-refresh, monitoring. Software that keeps working when I’m not watching it — and that clients depend on daily.

Capabilities

What I can actually build.

Depth in the unglamorous parts — signing, crypto, streaming, anti-bot — that most people route around.

Reverse Engineering

Mobile API signing · request signatures · Protocol Buffers / gRPC · token & session flows · traffic capture

Applied Cryptography

AES-256-CBC · RSA · HMAC-SHA256 · MD5 signing · key derivation · payload decryption

Backend & Architecture

FastAPI · Flask · Redis caching · plugin registries · rate limiting · schedulers · REST design

Media & Streaming

FFmpeg / ffprobe · in-memory transcode · HLS proxy & decrypt · subtitle burn-in · failover

Automation & Anti-bot

Playwright · Camoufox · TLS fingerprinting (curl_cffi) · challenge handling · Telegram control bots

AI & Frontend

LLM integration (Gemini) · MCP tooling · Astro · HTMX · Jinja2 · desktop GUIs
Selected work

Platforms, not scripts.

Flagship builds where the engineering carries the whole product.

Backend · Architecture

Aggregation API Platform

A modular content-aggregation API that unifies 35+ reverse-engineered mobile backends behind one clean REST interface. Plugin-per-source, Redis caching, rate limiting, automatic token refresh, and a Telegram ops bot.

42,410
Lines of code
35+
Source plugins
FastAPIRedisPlugin archTelegram
Media · Streaming

In-Memory Transcoder

A zero-disk streaming microservice that transcodes any codec — including H.265 — to 720p H.264 on the fly through a single-lane FFmpeg pipe, with automatic failover between nodes.

0-disk
In-memory pipe
H.265→H.264
Live transcode
FastAPIFFmpeghttpxAsync
Frontend · Product

White-label Frontend System

One backend, many brands. A multi-template Astro frontend with a middleware layer and its own datastore — designed to re-skin an entire product per client without touching the core.

3
Swappable templates
1
Shared core
AstroNodeFastAPISQL
AI · Tooling

AI Trading Co-Pilot

A CLI-first, MCP-ready trading assistant: multi-timeframe market reads, risk sizing, and paper-trade journaling in SQLite, wrapped in fail-closed safety rules. Its decision skill was stress-audited across three different AI models.

Fail-closed
Risk guard
MCP
Agent-ready
Python CLISQLiteMCPRSS
Client work · under NDA

Commissioned & confidential.

Real, paid systems built at clients' request and under their authority. The capability is on the table — the client names and exact targets stay redacted.

Travel sector NDA

Enterprise Booking Automation

Built for a licensed ██████████ operator to automate a high-volume, repetitive booking & registration workflow — reclaiming operator hours on a process that was fully manual before. Delivered at the client’s request and under their authority.

Session poolingBulk automationData pipelines
SaaS / AI platform NDA

Account Lifecycle Automation

End-to-end automated account provisioning for a ████████ platform, driven from a Telegram control panel with async workers and a companion web app.

Telegram botAsync workersWeb app
R&D Private

Anti-bot & Signal Research

Hands-on research into modern bot-protection: TLS fingerprint spoofing, browser challenge solving, and anti-detect browser automation against ████████ targets.

curl_cffiPlaywrightCamoufox
Platform ops NDA

Multi-platform Automation Engine

A unified automation engine coordinating many ██████ accounts across platforms, with a scheduler, shared auth, and per-platform plugins — the same platform-ise instinct, applied to operations.

Plugin archSchedulerAuth flows
These projects are covered by client confidentiality. I'm happy to walk through the architecture, trade-offs, and my exact role in a private conversation — the redactions protect the client, not the work.
Let's build

Have a system that needs cracking
— or one worth building?

Backend, reverse-engineering, streaming, or automation — if it's hard and specific, it's my kind of work. Start on GitHub.