Open sourceBackendAdvanced
Spring Boot
Official Java enterprise framework repository for large-scale testing, builds, and compatibility work.
BroadcomAbout 2 hrjavaspring
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Opportunities and learning resources
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Open sourceBackendIntermediate
Supabase
The open-source Firebase alternative; documentation and example issues suit a first pull request.
SupabaseAbout 2 hrtypescriptpostgres
CompetitionBackendAdvanced
National Student Computer Systems Capability Competition
Official student competition portal for operating systems, compilers, databases, and computer systems.
National Association of Computer Education in Colleges and UniversitiesCost to verifyChina
Official source · National Student Computer Systems Capability CompetitionVerified Aug 24, 2026
InternshipFrontend · Backend · AI · DataIntermediate
Tencent Campus Recruitment
Official Tencent portal for internships, campus roles, and recruiting events across multiple technical fields.
TencentChina
Official source · Tencent Campus RecruitmentVerified Aug 24, 2026
CompetitionBackendAny levelDue Oct 10, 2026
DeepInfra Round 1 (Codeforces Round 1126, Div. 1 + Div. 2)
The official source provides no summary. Open the item to read the original.
CodeforcesFreeGlobal
Open sourceBackendAdvanced
Node.js
Official Node.js runtime repository for asynchronous I/O, standard-library, and cross-platform engineering.
OpenJS FoundationAbout 2 hrjavascriptsystems
CompetitionBackendAny levelDue Oct 12, 2026
Codeforces Round (Div. 2)
在线编程竞赛，比赛时长约 3 小时。开始后不能再报名。
CodeforcesFreeGlobal
CompetitionBackendAny levelDue Oct 12, 2026
Codeforces Round (Div. 2)
The official source provides no summary. Open the item to read the original.
CodeforcesFreeGlobal
CompetitionBackendAny levelDue Oct 12, 2026
Codeforces Round (Div. 1)
The official source provides no summary. Open the item to read the original.
CodeforcesFreeGlobal
CompetitionBackendAny levelDue Oct 14, 2026
Educational Codeforces Round 195 (Rated for Div. 2)
在线编程竞赛，比赛时长约 2 小时。开始后不能再报名。
CodeforcesFreeGlobal
CompetitionBackendAny levelDue Oct 17, 2026
WorldQuant Round 1 (Codeforces Round Div. 1 + Div. 2)
The official source provides no summary. Open the item to read the original.
CodeforcesFreeGlobal