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Senior Reverse Engineer (Windows / C++)

Ukraine · Full-time · Senior

About The Company

MWDN is a global IT outstaffing company with 23+ years of experience that connects exceptional tech talent with leading companies across Israel, the USA, Great Britain, and Western Europe. We offer opportunities to work on international products in a stable and professional environment.

Why does MWDN rock?

Here’s what you can expect when you join MWDN:

  • Security: We carefully vet our clients to minimize risks and ensure reliability and timely payments - no fraud or unpleasant surprises.
  • Career support: If a project isn’t the right fit, we support you and actively help find new opportunities that match your skills and career goals.
  • Legal assistance: We provide guidance on legal matters, including opening and managing your independent contractor or sole proprietorship status, taxes, and related processes.
  • Professional development: We offer English courses and professional growth opportunities, as well as team-building events.

Why choose us? MWDN is ranked among the top 5 IT employers in our region according to DOU. We take pride in our transparency and strong commitment to our team. Curious to learn more? See what our employees say about working with us on DOU.

What is your new project?

  • Domain: AdTech / Digital Product Distribution
  • Client Location: Israel
  • Company size: 11–50
  • Founded in: 2017

What makes this project exciting?

As a leading digital ad tech company, our client utilizes multi-channel solutions to monetize audiences across the web. One of their primary channels focuses entirely on free downloadable products, utilizing search feeds and monetization models to drive revenue from post-installation user engagement.


What makes you a great fit

  • 10+ years of deep experience in Windows Internals, low-level programming, and binary analysis (as Liran noted, this is a field you are "born into", not just learned in a quick course).
  • Advanced C/C++ and x86/x64 Assembly for both reverse-engineering and higher-level desktop product development/rebranding.
  • Expertise with standard tooling: IDA Pro / Ghidra, x64dbg / WinDbg.
  • Hands-on, deep understanding of hooking and injection techniques: API / inline hooking (Detours-style), IAT/EAT hooking, DLL injection (reflective, manual mapping), and process injection (CreateRemoteThread, APC queue, thread hijacking, process hollowing).
  • Solid knowledge of Win32 / NT API internals, memory management, and code execution flow under Windows.
  • A "Hacker at Core" mindset: Ability to look at automatic flagging, anti-virus blocks, or negative signals without being intimidated, and creatively find ways around them.
  • Comfortable with Open Research & Investigative tasks: Proven track record of working without a blueprint or source code, where you need to invent or reinvent solutions from scratch.
  • Strong self-reliance and documentation skills to drive your own milestones and report findings so a teammate can re-walk them from your notes.

Your day-to-day in this position

  • You will reverse-engineer proprietary, third-party Windows products to recover undocumented behavior, derive interop specifications, and produce reference reproductions of how complex commercial software actually works under the hood.
  • The work is investigative: no source code is available.
  • Most days end with a refined hypothesis rather than a finished feature.
  • We expect you to drive your own research, set your own milestones, and report findings a teammate could re-walk from your notes alone.
  • Analyze and bypass security and anti-virus mechanisms: Deep-dive into Windows Defender, browser protections, and EDR signals to ensure a clean, unblocked installation flow for our software ecosystem.
  • Handle end-to-end product engineering: Transition seamlessly from low-level research to higher-level development tasks, including taking existing products, rebranding, and fully preparing them for global distribution.
  • Invent creative workarounds: Face automated flagging and negative SEO head-on, coming up with unorthodox, custom solutions where no blueprint or standard documentation exists.

Why work with us?

  • People-first management with minimal bureaucracy
  • A friendly company culture, proven by employees who choose to return
  • Flexible working hours
  • Full financial and legal support for independent contractors
  • Free English classes, with native speakers or Ukrainian teachers
  • Dedicated HR support

Our next steps

✅ Intro call with a Recruiter — ✅ Intro with the client — ✅ Home assignment — ✅ Offer