ExxonMobil hires overwhelmingly through campus recruiting, and almost every account describes the same shape: a screen (campus 1:1, phone, Skype or an online numerical/personality test), then an on-site or in-plant final day made up of several back-to-back interviews. Behavioural and competency questions dominate at every level, with a single shorter technical block bolted on that is calibrated to the discipline: chemical/process fundamentals and P&ID reading for engineers, industry/accounting/corporate-finance basics for finance, and a live trading simulation for commodities. Wage and craft hiring at Gulf Coast sites runs on a completely separate track: a scheduled pre-employment aptitude test, a long silent wait, then batched interviews with a heavy cut before the final round.
These 23 writeups cover chemical engineering, mechanical engineering, project engineering and other roles. 21 of them were posted under a pseudonym (Reddit, GeeksforGeeks or forum handles), so we could not verify the authors’ identities.
Typical rounds
21-3 range
Outcomes shared
11/6offer / not
Most common round
Panel
Sources span
2011 - 2026
Most frequently reported · Behavioral(23), Domain knowledge(10), STAR stories(8), Safety procedures(6), Past projects(5)
ExxonMobil’s official process
ExxonMobil publishes no dedicated 'our interview process' or hiring-FAQ page (the obvious /careers/how-to-apply and /how-we-hire URLs 404, and careers.exxonmobil.com is a JS shell with no process content). The closest official statement is the internship and co-op page, which confirms the campus-driven model candidates describe: recruiting teams travel to US campuses, most intern and co-op recruiting runs in the Fall from August to November, candidates are expected to be open to relocating across US sites, and students are told to track visits through their school's career services. It describes timing and logistics only, not interview rounds or assessments.
A campus group discussion used as the first filter before anyone reached the interview panel. The author gives no detail on the topic itself.
Covered · Group discussion, Behavioral
2
Panel interviewPanel
A single 45-minute session with three panellists covering technical, behavioural and communication ground at once. Roughly the first quarter was technical (training, minor and major projects, a research paper, and mechanics-of-materials questions grounded in how real structures fail), followed by an order-of-magnitude estimation puzzle and a long behavioural block on difficult teammates, pitching ideas, and moving from a robotics background into oil and gas. Results were announced within the hour.
Covered · Past projects, Strength of materials, Guesstimates, Behavioral, Conflict handling, Career motivation
Cost Engineering Intern, Bangalore Technology Centre
Internship
Received an offer3 rounds
1
Resume shortlistTake-home
A pure paper screen with no fixed cutoff. The author's read was that a reasonable CGPA plus genuine, well-documented technical projects and positions of responsibility got you through.
Covered · Resume deep-dive, Past projects
2
Group discussionPanel
Held remotely the morning after a company presentation, with third-year mechanical and chemical students mixed into groups of twelve. About half an hour of open discussion on a general social topic, then each participant had thirty seconds to give their own conclusion.
Covered · Group discussion, Behavioral
3
Technical and HR interviewPanel
A five-person panel that spent the first fifteen-plus minutes purely on the resume, then asked the candidate to name her favourite chemical engineering subjects and pulled questions from every one she listed. The panel probed conceptual understanding rather than textbook definitions, and closed with standard behavioural questions on strengths and weaknesses.
Met recruiters on both days of the fall engineering career fair, then submitted the formal application through the university's Handshake portal.
Covered · Resume deep-dive
2
Phone screenPhone screen
A phone conversation with a manufacturing engineer who was an alum of the same school. The author describes it as getting-to-know-you rather than a technical drill, with the offer call arriving weeks later.
An hour-long one-on-one on campus with a company alum, entirely behavioural, reached through a non-target school's recruiting pipeline.
Covered · Behavioral, STAR stories
2
Houston final dayFinal
Flown to the Houston campus with a dinner the night before hosted by a non-interviewing 'day host', then three consecutive hour-long interviews the following day. Two were behavioural and one was technical, covering the energy industry, accounting and corporate finance.
A first-round interview with two senior people from operations and trading, focused on behavioural questions and the candidate's resume.
Covered · Behavioral, Resume deep-dive
2
Trading simulationTechnical
A one-hour live trading exercise. Other contributors on the same site note it assumes a working grasp of how crude is traded and hedged and what drives supply and demand.
Covered · Trading simulation, Domain knowledge
3
SuperdayFinal
A final superday round that this candidate did not attend for logistical reasons, ending the process without an offer.
An online application form followed by an online numerical test and a personality questionnaire.
Covered · Numerical reasoning, Aptitude
2
Video interviewPhone screen
A Skype interview built around competency questions.
Covered · Behavioral, STAR stories
3
Site interviewFinal
A face-to-face interview at the Fawley site, again mostly competency-based with one technical question mixed in. The author reports the end-to-end process took six to nine months.
Covered · Behavioral, STAR stories, Domain knowledge
A one-on-one interview built on standard motivation questions plus a pointed question on how safety shapes the candidate's own behaviour, alongside a skills test and background check.
Covered · Behavioral, Safety procedures, Career motivation
A professor referral put the resume straight in front of a group lead, and the entire process was one roughly 45-minute phone call with that group. Entirely behavioural and, by the author's account, very standard: motivation for joining and a failure story. Drug test and background check followed.
A one-on-one behavioural interview held on campus.
Covered · Behavioral, STAR stories
3
Final panel dayFinal
Four back-to-back interviews: a task-prioritisation exercise, a technical interview, a behavioural interview, and a closing conversation with the area manager. The author rated this loop difficult despite the whole process taking under a month.
The opportunity came through a staffing agency rather than a direct application, starting with a phone screen.
Covered · Behavioral, Shift availability
2
In-person and site interviewPanel
An in-person interview followed by an on-site round, with a group element and a background check. The offer landed within a month of the first interview.
An on-campus interview after an info session and application, described as heavily fit-focused.
Covered · Behavioral, STAR stories
2
Dallas final dayFinal
Flown to Dallas a week later for a final day of five interviews, only one of which was technical. The technical bar was described as confirming basic financial competency rather than deep modelling. The candidate ultimately declined the offer.
A two-on-one interview with associates plus a separate one-on-one with a senior group leader.
Covered · Behavioral, Resume deep-dive
2
SuperdayFinal
A superday-style final consisting of two interviews, a dedicated technical session, and a closing conversation with the controller. The author rated it easy and accepted the offer.
An online numerical reasoning test gating the telephone stage, referenced by both posters in the thread.
Covered · Numerical reasoning
2
Telephone interviewPhone screen
A telephone interview made up of general competency questions. The poster declined to reproduce the questions, said there were no surprises, and reported not passing.
A short Skype interview run by an outsourced interviewer who had no knowledge of the specific role, so the questions stayed generic and competency-shaped. Multiple posters in the thread put it at ten to fifteen minutes.
Covered · Behavioral, STAR stories
2
Face-to-face interviewTechnical
An in-person interview with two project managers that the poster describes as the real hurdle: mostly role-specific discussion, closing with roughly ten minutes of chemical engineering technical questions such as reading a sketched process and instrumentation diagram and reasoning about what could go wrong and how flow and pressure behave.
A scheduled, seat-limited pre-employment test session run for Baytown-area wage and craft roles. Other posters in the same thread who sat it describe verbal reasoning, maths and mechanical aptitude sections where the time limit, not the difficulty, is the problem, and note a two-year wait before you may re-test.
Candidates who cleared the test were called in batches; this author was one of roughly fifty interviewed for a machinist opening but was cut before the final interview. Thread-mates describe the same pattern at other Gulf Coast plants and note that profiles stay on file for around four years, with callbacks arriving months or years later.
A single panel of three interviewers split into a technical section, a behavioural section and a general section. The panel told the author this is normally the whole loop for the role, with a second interview added only if they feel they need one, and quoted a decision inside about two weeks. The author was still waiting with the portal stuck on 'in progress' when they posted.
Covered · Domain knowledge, Behavioral, Past projects
Interviews for a Baytown process technician intake were run as a mass week-long event: the author reports hundreds of candidates cycled through across the week for 48 seats in an October start class, with far more people present on the day than expected. They posted again roughly ten days later still waiting on offers, so the outcome is unknown.
Process Technician Apprenticeship, Baytown Complex
Experienced
Outcome not shared2 rounds
1
Online testingOnline assessment
An online test sat a few weeks after applying, which gated the interview invitation. A separate poster preparing for the same trainee-operator track was told the process is two phases: a mechanical comprehension test and then an on-site interview.
Interviews were run as a single scheduled block across one week for the whole intake class, with candidates told offers would go out roughly three weeks after that week against a fixed cohort start date a couple of months later. The author's portal moved to 'Application Under Review' a week after interviewing and then stopped updating, with HR not responding to follow-up email.
Covered · Behavioral, STAR stories, Safety procedures
Materials Synthesis and Characterization Technologist
Experienced
Outcome not shared2 rounds
1
Online assessmentOnline assessment
An assessment sent before any human interview; the author does not describe its content.
Covered · Aptitude
2
Panel interviewPanel
A single panel round covering the lab and materials role. The author was unsure whether this was the final stage or whether a technical or manager round followed, and was still waiting on a response when they posted.
A chemical engineering PhD candidate describes clearing two interview rounds before the site visit, without detailing their content.
Covered · Past projects, Domain knowledge
2
On-site interviewFinal
A final on-site round closing a three-round loop. The author posted weeks later still without a decision, which matches the slow post-onsite turnaround other candidates report.
Two interviews held in the same period for a refinery process job. The author's account is mainly about the aftermath: nearly two months later there was no rejection email and no change to the application status, which several other posters in the same subreddit report as normal for this pipeline.
ExxonMobil hires overwhelmingly through campus recruiting, and almost every account describes the same shape: a screen (campus 1:1, phone, Skype or an online numerical/personality test), then an on-site or in-plant final day made up of several back-to-back interviews. Behavioural and competency questions dominate at every level, with a single shorter technical block bolted on that is calibrated to the discipline: chemical/process fundamentals and P&ID reading for engineers, industry/accounting/corporate-finance basics for finance, and a live trading simulation for commodities. Wage and craft hiring at Gulf Coast sites runs on a completely separate track: a scheduled pre-employment aptitude test, a long silent wait, then batched interviews with a heavy cut before the final round.
What topics does ExxonMobil test in interviews?
Commonly reported topics include Behavioral, STAR stories, Resume deep-dive, Past projects, Domain knowledge, Safety procedures.
These guides summarize public, first-hand interview experiences shared by candidates. They describe the shape of each loop and the topics that came up, not a leaked question bank, and every experience links back to its original source. Processes change often; treat this as directional prep, not a script.
