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$
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Looks Like This Service Is On Hold
Happy S is unavailable until Sep 30, 2026
I will build and solve reverse engineering and pwn ctf challenges for you
Level 2
Has met high performance criteria and has a proven track record for meeting client expectations.
About this Gig
I am a seasoned Reverse Engineering(RE)/pwn CTF player. I have played and organized many CTF events. I can also help on crypto challenges
I can create CTF challenges or try to solve your challenges, write solution scripts and writeups. I can also teach you how to solve on a call - the tools and techniques. I can provide link to my writeups on your inquiry.
Lesson purpose:
Other
Student age:
Teen (13–17)
•
Adult (18–65)
•
Senior (65+)
Development technology:
C/C++
•
Python
•
Rust
Reviews
43 reviews for this Gig
| (43) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
U user84647292
Repeat Client
United States
A profound educator and SME in their field. Happy S takes the time to understand the project deliverables and walk you through the learning process.
$100-$200
Price
3 days
Duration
Helpful?U user10820234
United States
Very helpful, patient, and completed the task efficiently!
$50-$100
Price
2 days
Duration
Helpful?M muhhsn
Austria
I was never expecting that he done my task in just 3 to 4 hours.
$50-$100
Price
1 day
Duration
H 
Seller's Response
Helpful?A alphabetttt
United States
Fast and very knowledgeable
$50-$100
Price
1 day
Duration
Helpful?M 
mollymeow
Italy
I asked Happy S to design a custom reverse engineering Ctf challenge to propose to my boyfriend. She was very quick in her response and immediately understood the assignment. The final result was delivered fast and exceeded my expectations. I totally recommend her!
Up to $50
Price
5 days
Duration
Helpful?
Reviews
43 reviews for this Gig
| (43) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
U user84647292
Repeat Client
United States
A profound educator and SME in their field. Happy S takes the time to understand the project deliverables and walk you through the learning process.
$100-$200
Price
3 days
Duration
Helpful?U user10820234
United States
Very helpful, patient, and completed the task efficiently!
$50-$100
Price
2 days
Duration
Helpful?M muhhsn
Austria
I was never expecting that he done my task in just 3 to 4 hours.
$50-$100
Price
1 day
Duration
H Seller's Response
Helpful?A alphabetttt
United States
Fast and very knowledgeable
$50-$100
Price
1 day
Duration
Helpful?M mollymeow
Italy
I asked Happy S to design a custom reverse engineering Ctf challenge to propose to my boyfriend. She was very quick in her response and immediately understood the assignment. The final result was delivered fast and exceeded my expectations. I totally recommend her!
Up to $50
Price
5 days
Duration
Helpful?
