Reverse Engineering Jobs

I have two signed Android APKs that share the same brand: a Chinese-language build that already handles user registration smoothly, and an English-language build that currently lacks this flow. My goal is to extract every user-management API call from the Chinese APK—endpoints, headers, payload structures, encryption or signing logic—and transplant that functionality into the English APK so both variants register users in exactly the same way. What I can provide: • The release APKs for both language versions • Valid test accounts and server access for live registration checks • Any additional assets the Chinese build relies on (native libraries, certificates, config files) What I need from you: • Decompile, inspect and document the Chinese APK (jadx, a...

Hi I will share the details with the shortlisted candidates. Thanks

I need to obtain hard-to-reach details—specifically the IP address, associated phone number, and any location-related information—linked to one particular Telegram account. Standard OSINT searches have already been exhausted, so I’m explicitly open to advanced, purely technical hacking techniques that dig directly into Telegram traffic or MTProto behaviour. If this is within your skill set, tell me how you would approach the task, which tools or exploits you prefer to leverage, and what minimal input you require from my side (e.g., username, recent message, session file). Deliverables • Verified current or last-seen IP address for the target account • Recovered phone number (or clear statement if technically impossible) • Any additional address or geo...

I’d like a seasoned Unity-IL2CPP modder to open up Granny 1.8.5 (APK, IL2CPP build), pull out the bits I need, and layer in brand-new content while keeping the original game fully playable. What I need first is a clean decompile focused on the maps and underlying mechanisms. From there we can extract models, textures, voices, and any other assets needed for the additions below: • Two extra floors above the current 4. attic (5th & 6th) • A full underground area that mirrors Slendrina The Cellar, complete with shafts, chests, keys, and secret routes • Fresh puzzles and collectible items that tie each zone together, plus at least one alternative escape method • Smarter, faster Granny AI that can crawl anywhere, patrol the new spaces, and trigger smaller m...

I’m looking for an experienced Windows native developer (C++ / reverse engineering / performance optimization) to analyze and refactor an existing desktop application startup flow. The application currently performs blocking network checks during startup, which significantly slows down launch time and makes it dependent on an external service availability. Goals: Analyze application startup sequence Identify blocking operations (network / license / initialization) Propose and implement a faster startup approach (e.g. async checks, caching last valid state, or local test mode for development) Improve overall startup performance and stability Tech details: Windows desktop application Native executable (C++ / mixed native) Tools used: IDA / Ghidra Requirements: Strong experi...

I have an existing Android APK but no accessible source code. I need the app fully de-compiled, cleaned up, and re-assembled so I can continue development. Once the codebase is restored, I’ll want a few targeted edits—mostly refactoring and minor feature adjustments that we’ll clarify together after you review the decoded project. What I expect from you: • Produce a readable, gradle-based Android Studio project reconstructed from the current APK. • Implement the agreed code changes, then compile and deliver a fresh, working release APK plus signed debug build. • Document every modification so I can pick up future work without hand-holding. You’re free to use jadx, apktool, or any equivalent reverse-engineering toolchain as long as the final pr...

I need a robust, well-documented software or a tool that lets the Zowee H155-381 operate with several SIM cards instead of only one. The job involves reverse-engineering the device’s firmware and hardware interfaces, pinpointing the current SIM-handling logic, and producing a tool that can reliably switch between multiple SIMs on demand. The core requirement confirm that you will deliver: A working unlock software for Zowee H155-381 same model shown at pictures i sent that single or double click do steps automatically and make every router we link and use the software on it support multi carriers sim card normally without future re locking Network/SIM lock removal, so the device can be used with other carriers normally without any obstracles Step-by-step instructions (easy...

I need an experienced engineer to analyze and improve a high-demand online booking workflow so bookings can succeed reliably even under extreme traffic. I already have a working Playwright-based browser automation, but during peak demand all sessions currently land on a “high demand / unavailable” state. The goal is to improve success rate through deeper system understanding, better timing, and smarter flow control . The work involves analyzing booking flow and state transitions, understanding how availability actually appears during high demand (including delayed or staggered releases), improving timing, retries, waiting strategy, and navigation logic, eliminating race conditions and aborted navigations, and designing the automation to be long-running, reactive, and resilient ...