Fidelity Investments Intern – Software Engineer Interview Questions (2026)
Boston, MA·6 interview reviews·Hard difficulty
Co-op – Software Engineer Interview Reviews
6Recruiter screen, then a 45-minute coding round. Friendly interviewer. Results in a few days.
“Merge Intervals - Merge all overlapping intervals”
One round with two problems in 45 min. If you've practiced patterns you're fine — narrate your approach before you code.
“K Closest Points to Origin - Find K points closest to origin using Manhattan distance”
Recruiter screen, then a 45-minute coding round. Friendly interviewer. Results in a few days.
“Describe a time when you had to learn something quickly to complete a project”
Online assessment was tough, but the onsite technical was two standard LC-style problems. Interviewer wanted clear communication before coding.
“Clone Graph - Create a deep copy of an undirected graph”
Online assessment was tough, but the onsite technical was two standard LC-style problems. Interviewer wanted clear communication before coding.
“Hash map + interval or sliding window style”
One round with two problems in 45 min. If you've practiced patterns you're fine — narrate your approach before you code.
“BFS/graph or linked list manipulation”
About This Role
Frequently Asked Questions
How hard is it to get hired as a Co-op – Software Engineer at Fidelity Investments?
The interview difficulty is rated 3.6/5 by candidates. 77% report a positive experience. Emphasize Data Structures and Algorithms in your prep.
How long does the Fidelity Investments Co-op – Software Engineer hiring process take?
The process typically takes 2–6 weeks from application to final decision, depending on the hiring cycle and team availability.
What is the interview process like?
Most candidates go through a recruiter screen, followed by technical coding rounds, and a final interview loop. 52% of candidates applied online.
What questions are asked in a Fidelity Investments Co-op – Software Engineer interview?
Common topics include data structures & algorithms, system design for some teams, and behavioral STAR stories. Practice with our AI voice interviewer to tighten delivery.
Personalized prep in one place—your five-in-one interview workspace.
Behaviorals, technicals, system design, voice mocks, and full delivery review—personalized to your role and target company, all in one flow. Real-time feedback on clarity, pacing, and filler before you interview with Fidelity Investments.
Cancel anytime. No credit card required.