CodingCall

Explore Events

Discover CTFs, bug bounties, hackathons, and coding competitions.

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Showing 24 of 54 events
OSS Bounty

Outreachy — December 2026 Internship Cohort

by Outreachy

$7K
Dec 1 - Mar 5, 2027
Deadline passed
Beginner
Online
OSS Bounty

LFX Mentorship 2026 — Term 3 (Fall)

by The Linux Foundation

$3K
Sep 7 - Nov 27, 2026
Deadline passed
Intermediate
Online
Conference

KubeCon + CloudNativeCon North America 2026

by Cloud Native Computing Foundation

Nov 9 - Nov 12, 2026
Deadline passed
Salt Lake City, UT, USA
Open
In-Person
Featured
Coding Contest

ARC Prize 2026 — ARC-AGI-2

by ARC Prize Foundation

$700K
Mar 25 - Nov 2, 2026
Deadline passed
Advanced
Online
Coding Contest

HACK TO THE FUTURE 2027 (AtCoder Heuristic Contest 074)

by AtCoder

Oct 30 - Nov 9, 2026
Deadline passed
Advanced
Online
OSS Bounty

Hacktoberfest 2026

by DigitalOcean

Oct 1 - Oct 31, 2026
Deadline in about 1 hour
Beginner
Online
CTF

2026 Qiangwang Challenge on Cyber Mimic Defense Qualification

by LoveFromMimic

Oct 31 - Nov 1, 2026
Deadline in about 3 hours
Open
Online
CTF

Russian CTF Cup X Qualifier

by ctfcup

Oct 31 - Nov 1, 2026
Deadline in about 10 hours
Open
Online
CTF

CTF@AC26 - Finals

by UPT-CTF

Oct 30 - Nov 1, 2026
Deadline in about 11 hours
Faculty of Automation & Computer Science, Timisoara, Romania
Open
In-Person
CTF

HI Cyber Con 2026 CTF

by HiddenInvestigations

$1K
Oct 30 - Nov 1, 2026
Deadline in about 15 hours
Open
Online
Coding Contest

Educational Codeforces Round 196 (Rated for Div. 2)

by Codeforces

Nov 4 - Nov 4, 2026
Deadline in 4 days
Intermediate
Online
Coding Contest

ICPC 2026 Online Challenge 2 powered by Huawei

by Codeforces

Nov 5 - Nov 19, 2026
Deadline in 4 days
Open
Online
Coding Contest

Codeforces Round (Div. 2)

by Codeforces

Nov 6 - Nov 6, 2026
Deadline in 6 days
Intermediate
Online
CTF

BlackAlps CTF 2026

by BlackAlps

Nov 6 - Nov 6, 2026
Deadline in 6 days
Switzerland, Yverdon-les-Bains
Open
In-Person
CTF

HKCERT CTF 2026 (Qualifying Round)

by Black Bauhinia

Nov 6 - Nov 7, 2026
Deadline in 6 days
Open
Online
Coding Contest

AtCoder Beginner Contest 483

by AtCoder

Nov 7 - Nov 7, 2026
Deadline in 7 days
Beginner
Online
Coding Contest

Codeforces Round (Div. 2)

by Codeforces

Nov 7 - Nov 7, 2026
Deadline in 7 days
Intermediate
Online
Coding Contest

Codeforces Round (Div. 1)

by Codeforces

Nov 7 - Nov 7, 2026
Deadline in 7 days
Advanced
Online
CTF

SpookyCTF 2026

by NICC

Nov 6 - Nov 7, 2026
Deadline in 7 days
Open
Online
CTF

Mimic

by Rare Byte Hub

Nov 7 - Nov 8, 2026
Deadline in 8 days
Open
Online
Coding Contest

AtCoder Grand Contest 079

by AtCoder

Nov 8 - Nov 8, 2026
Deadline in 8 days
Advanced
Online
CTF

CSCTF 2026

by Mirachron

Nov 6 - Nov 8, 2026
Deadline in 8 days
Open
Online
CTF

PINK+ CTF 2026

by PINK+

Nov 6 - Nov 9, 2026
Deadline in 9 days
Open
Online
Hackathon

PayPal AI Hackathon

by PayPal

$68K
Oct 1 - Nov 12, 2026
Deadline in 12 days
Open
Online