MLH Fellowship - Software Engineering Track vs Summer at Simons

Comparing two highly competitive STEM opportunities. Both are internships for high school students.

MLH Fellowship - Software Engineering Track Summer at Simons
Prestige Tier Tier 2 — Highly Competitive Tier 2 — Highly Competitive
Type Internship Internship
Organization Major League Hacking (MLH) Simons Foundation
Acceptance Rate Highly competitive (exact rate not disclosed); MLH notes 'overwhelming demand from students' and significantly more applicants than available projects Not publicly disclosed, but estimated at 5-15% given high prestige and limited spots per center (~3-10 positions per center per summer)
Applicants Not officially published; described as receiving 'overwhelming demand' suggesting hundreds to thousands annually Likely 200-500+ total applications across all centers annually, though not confirmed
Deadline Rolling Rolling
Cost to Apply Free Free
US Only No / International No / International
Grades Open to high school students and early-career developers; no specific grade level restriction mentioned, but intermediate to advanced coding proficiency required Undergraduate students and graduate/post-doctoral students only - high school students are NOT eligible
College Impact Strong positive impact on college applications and career prospects: 1) Demonstrates real-world professional experience (not just school projects or tutoring), which top colleges value significantly; ... Summer at Simons is viewed VERY POSITIVELY by graduate admissions committees and prestigious employers. Impact includes: 1) STRONG indicator of research capability and commitment to academic career - ...