Public first-hand accounts of Lumen's loop are almost entirely from its India campus recruiting (still branded 'Lumen Technologies / CenturyLink Inc' at colleges). Those loops run an online aptitude/CS-fundamentals test on HackerEarth, one technical round mixing OOPs/OS/DBMS/networking with a couple of small coding problems, a managerial round centred on the final-year project plus a logic puzzle, and an HR chat. On the US side there is no first-person writeup we could verify, but Lumen publishes an unusually detailed official 'Interviewing at Lumen' page describing an application-plus-Vervoe-skills-assessment-plus-recruiter/hiring-manager-interview journey.
These 2 writeups cover software engineering, network engineering, field technician and other roles, India campus dominant. All of them were posted under a pseudonym (Reddit, GeeksforGeeks or forum handles), so we could not verify the authors’ identities.
Typical rounds
32-4 range
Outcomes shared
0/1offer / not
Most common round
Online assessment
Sources span
2023 - 2025
Most frequently reported · Aptitude(2), Behavioral(2), Data structures & algorithms(2), DBMS(2), Networking(2)
Lumen Technologies’s official process
Lumen's own careers site walks through four stages: (1) prepare and submit an online application with resume or LinkedIn, (2) for some roles complete an online skills-based assessment on Vervoe within about three days, (3) work through the recruiter and hiring-manager interviews using their PLAN framework (Prepare, Listen, Ask, Never fear), and (4) connect over video with a professional setup. Their FAQ confirms Vervoe is used for skills assessments and that a recruiter coordinates follow-ups.
28 multiple-choice questions in 60 minutes mixing quantitative aptitude and logical reasoning with C/C++ output questions and CS-fundamentals items across DBMS, OS, networking and DSA. The writer noted the questions were more tricky than difficult and were solvable without pen and paper.
A conversational round with no coding: introduction, deep-dive into the final-year project including technology choices and problems faced, plus behavioural questions on team management, handling conflict, prioritisation and extra-curricular activities.
Covered · Past projects, Behavioral, Conflict handling
A single 90-minute HackerEarth test with 29 MCQs on DSA, OS, networking and DevOps plus a couple of implementation-style coding problems (e.g. anti-palindrome). No negative marking and one combined section.
Covered · Data structures & algorithms, Operating systems, Networking, DevOps
2
Technical interviewTechnical
30-minute round covering OOP features, exception vs error and exception handling, virtual classes, JavaScript basics (attributes vs property, cookies, local vs session storage), SQL (delete vs truncate, second-highest salary query) and small coding problems on recursion, Fibonacci and array rotation.
Covered · OOP, SQL, DBMS, Data structures & algorithms, Web fundamentals
3
Managerial interviewHiring manager
Discussion of the final-year project and branch subjects, followed by classic logic puzzles: the two-trains-and-a-bird distance puzzle and estimating the number of matches in an IPL season.
Covered · Past projects, Puzzles, Aptitude
4
HR interviewBehavioral
30-minute HR conversation on motivation to join software, final-year project, family, hobbies and off-resume items.
What is the interview process like at Lumen Technologies?
Public first-hand accounts of Lumen's loop are almost entirely from its India campus recruiting (still branded 'Lumen Technologies / CenturyLink Inc' at colleges). Those loops run an online aptitude/CS-fundamentals test on HackerEarth, one technical round mixing OOPs/OS/DBMS/networking with a couple of small coding problems, a managerial round centred on the final-year project plus a logic puzzle, and an HR chat. On the US side there is no first-person writeup we could verify, but Lumen publishes an unusually detailed official 'Interviewing at Lumen' page describing an application-plus-Vervoe-skills-assessment-plus-recruiter/hiring-manager-interview journey.
What topics does Lumen Technologies test in interviews?
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.
