Jefferies Software Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 13 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Jefferies.
Jefferies
Software Engineer Intern
Intern Easy Positive experience No offer 3 rounds
Interview process
Technical screen Recruiter call Phone screen
Interview formats
Coding Behavioral
They looked at my resume. It was quick and chill, easy questions. After a hackerrank assessment, they set up the first interview. The interviewer mentioned there would be two more rounds. They used a scoreboard for each candidate.
Confirmed questions1 question
- Describe your approach to solving a client's problem.
Jefferies
Software Developer
Entry Easy Negative experience No offer 2 rounds
Interview process
Onsite Onsite Offer
Interview formats
Behavioral Technical
The first interview was supposed to be with the hiring manager on-site, but they didn't show up and the front desk had no clue about it. The recruiter sorted it out and got me in with a team member. The interview went from around 9am to 2pm, and they only gave me water. Then, I had a second on-site interview, which was pretty much the same, but the hiring manager did show up at the end. After all that, I got a rejection from the hiring manager, and the reason they gave was the complete opposite of what I said and what's on my resume.
Confirmed questions6 questions
- Can you tell me about yourself?
- What are your strongest and weakest points?
- Can you give an example of a difficult situation you encountered and how you resolved it?
Jefferies
Software Engineer
Mid Difficult Neutral experience No offer 3 rounds
Interview process
Recruiter call Phone screen Onsite
Interview formats
Technical Coding Behavioral
This was for a Python Software Engineer role at Jefferies, a hedge fund in Manhattan. They're redoing a back office reporting system from Java/Perl to Python 3, Tornado, Docker, REST, Kafka, and Pandas. A recruiter connected me. First, I had a 30-minute phone interview. Then, I had a 4.5-hour on-site interview. About a week after the on-site, they told me I didn't do well enough on the data structures part.
Confirmed questions5 questions
- Can you write a Python class that supports constant-time insert, search, delete, and get_random operations, with uniform probability for get_random? What's the space complexity, assuming duplicates are allowed?
- Explain how to perform cross-product, inner join, left outer join, and full outer join in PostgreSQL.
- If families keep having children until a boy is born, what's the resulting boy-to-girl ratio in the country?
Jefferies Software Engineer Interview Questions
Quoted word for word from Jefferies interview reports.
“If families keep having children until a boy is born, what's the resulting boy-to-girl ratio in the country?”
Read reports →“What does the Pandas dataframe groupby method return, and what are the inputs and outputs for the apply method?”
Read reports →“Write code to find the largest number out of three.”
Read reports →“Describe the usage of multiple inheritance in Python and how to initialize multiple base classes.”
Read reports →“Can you write a Python class that supports constant-time insert, search, delete, and get_random operations, with uniform probability for get_random? What's the space complexity, assuming duplicates are allowed?”
Read report →“Explain how to perform cross-product, inner join, left outer join, and full outer join in PostgreSQL.”
Read report →“Given some general white-boarding problems, what are their time and space complexities?”
Read report →“Can you compare Python and C++, detailing the pros and cons of each?”
Read report →“Describe the qualities of an effective researcher.”
Read report →Formats, difficulty and experience
Across all 13 Jefferies interview reports.