What does Old Mission Capital ask in software engineer interviews?

Old Mission Capital SWE interviews typically cover data structures and algorithms, system design, and behavioral questions. Candidates report coding rounds using LeetCode-style problems, plus architecture design and leadership questions for senior roles. LeakCode aggregates verified reports from 3+ candidates.

How many rounds does Old Mission Capital have in its interview process?

The Old Mission Capital interview process typically includes a recruiter screen, a phone/online assessment round, and 4-5 onsite or virtual interviews covering coding, system design, and behavioral competencies. The exact number of rounds varies by role and team.

How hard is it to get a job at Old Mission Capital?

Old Mission Capital is highly selective. Candidates report pass rates in the single digits for competitive engineering roles. Strong data structures fundamentals, system design ability, and clear communication are required to advance past initial screens.

What topics should I study for a Old Mission Capital interview?

Based on aggregated Old Mission Capital interview reports: arrays and hash maps, trees and graphs, dynamic programming, system design (distributed systems, databases, caching), and behavioral questions using the STAR method. LeakCode shows exactly which topics appear most often.

Does Old Mission Capital ask LeetCode hard questions?

Interview difficulty at Old Mission Capital varies. Coding rounds typically include medium to hard difficulty algorithmic problems. System design questions are open-ended and evaluated on depth of reasoning. Browse real Old Mission Capital interview questions on LeakCode to see the actual difficulty distribution.

Old Mission Capital Interview Questions (2026-2027)

1 questions · 1 experiences · 1p3a (2)

By year: 2025

Read our Old Mission Capital interview guide

Old-mission-capital Fulltime SDE Online Test: JSON Parser Implementation

SWE OA

2 replies

Question Details

Write a JSON parser that can parse strings, lists of strings, or lists of lists. Here are a few examples: "Hello World" ["Hello World"] ["abc", "def"] ["abc", ["aaa", "bbb"], "ccc"] You don't need to write a class for this; it's provided for you. You only need to implement the parsing functionality. (Requesting points/resources)

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Topics

Strings

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