How many rounds does Celestica have for a Software Engineer interview, and what are the stages?

Celestica’s process includes an HR phone screening, one or two rounds of technical and managerial evaluations, and in some locations a technical written assessment or coding quiz. After that, candidates may go through a practical project discussion focused on hardware-software interface challenges, then a final management assessment to evaluate overall fit and decision-making.

How hard is it to get an offer for Celestica Software Engineer interviews?

In candidate-reported data for Celestica, the most common difficulty level is average. Across 71 reported interviews, the offer rate is 65%, which suggests many candidates do progress through the loop after screening, but performance still has to be consistent at the technical steps.

What technical topics does Celestica test for Software Engineer interviews?

Expect questions centered on problem solving, data structures, and algorithms (DSA), plus technical fundamentals and deep technical problem solving. The preparation guide also emphasizes C/C++ fundamentals such as memory management, pointers, and low-level concepts, and the scenario-style questions focus on explaining your thought process and troubleshooting reasoning.

Is there a written assessment or coding quiz for Celestica Software Engineer interviews?

In some locations, candidates may complete a short technical written assessment or coding quiz on fundamental concepts. The rest of the process can include technical and managerial evaluations, a practical project discussion, and a final management assessment, depending on the role and location.

What is the salary range for Celestica Software Engineer roles?

Candidate and job-posting reports show a base pay minimum of $132,905, with total compensation reported up to $205,911. Reported compensation varies by level and location, so the exact offer depends on your specific match to the role requirements.

What should I focus on when preparing for Celestica’s Software Engineer interview?

Prioritize core computer science fundamentals like data structures, algorithms, and C/C++ low-level concepts, and be ready to explain your thought process clearly during problem solving. You should also practice scenario-based troubleshooting and root-cause reasoning, including hardware-adjacent contexts like diagnosing issues in production line or hardware test scenarios, since those are explicitly called out in the preparation materials.

CelesticaSoftware Engineer

Updated Apr 25, 2026

Celestica Software Engineer Interview Experiences 2026

Real, anonymous reports from people who interviewed for Software Engineer at Celestica, newest first and distilled into what to expect across the loop.

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Hot & recentNewest first

4 months ago

Difficult Positive Bayan Lepas

My hiring process started with a phone conversation with HR that immediately set a positive tone. The interviewer was kind and considerate, and she even asked about my midterm exam schedule to make sure the timing would work. A bit later, I met with the hiring manager and the overall atmosphere felt comfortable and engaging.

In that manager discussion, the focus was on problem-solving and how I handled technical details—especially around understanding data sources and working through bugs. I remember feeling like the questions were practical rather than abstract, and the hiring manager even shared small highlights from his day to keep things human. The process felt well-structured end to end, and I ultimately received an offer about two weeks later. Looking back, what impressed me most was how professional the conversations were while still feeling supportive.

9 months ago

Average Positive Chennai

I went through an online interview with two people from the team. One of them was a trainer and the other was a lead test engineer, and the conversation was mostly technical with a strong focus on how familiar I was with the product, not just generic concepts. It also had the feel of a fairly guided session—technical questions with clear expectations, and I got feedback that suggested I was on the right track.

The technical themes stayed concrete: there were C/C++ concepts, some basics of embedded, and a DSA-style problem about working with a linked list (adding an element at a specific position). Even when the questions were straightforward, I had to be precise about the reasoning. The only thing that didn’t go smoothly was timing afterward—I didn’t hear back from HR even after multiple follow-ups, so even though the technical side went well, the process stalled.

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What to expect

Distilled from the reports

Interview Structure & Timeline

The interview process generally starts with an HR phone screening followed by one or more technical interviews, often culminating in a final discussion with a hiring manager. Candidates typically experience a timeline of about two weeks from the initial HR call to receiving an offer or feedback.

HR screeningTechnical interviewsHiring manager

Technical Assessment Focus

Candidates can expect a strong emphasis on technical knowledge, particularly in areas like data structures, operating systems, and specific programming languages such as C/C++. Interviews often include practical problem-solving questions that require clear reasoning and precision.

Data structuresC/C++Problem-solving

Behavioral & Cultural Fit

Behavioral questions are a significant part of the process, aimed at assessing cultural fit and communication skills. Interviewers often inquire about past experiences and how candidates work in teams, making it essential to prepare for discussions beyond technical skills.

Behavioral questionsCultural fitTeamwork

Interview Environment & Tone

The tone of interviews can vary widely, with some candidates experiencing supportive and engaging interactions while others report rudeness or a stressful atmosphere. Maintaining composure and clarity under pressure is crucial.

Interview toneSupportiveStressful

Depth of Technical Questions

Candidates should be prepared for deep-dive technical questions that require detailed explanations of their past work and projects. Interviewers often seek to understand the candidate's thought process and specific contributions rather than just high-level summaries.

Technical depthProject experienceDetailed explanations

Feedback & Communication

Some candidates have reported delays in receiving feedback after interviews, which can be frustrating. It's advisable to follow up with HR if you haven't heard back within a reasonable timeframe after your interviews.

FeedbackCommunicationFollow-up