Check the current employer, understand the limited interview evidence, and prepare for telecom software work.
By the Game Assessment Prep research teamUpdated September 14, 2026How we research
No verified Optiva game battery is established. The usable assessment evidence concerns a historical software assignment, and preparation should follow the exact technical role.
Category practice
The Istanbul principal software engineer account describes a short coding task before technical interviews. It does not identify a vendor or current test. A small coding project with tests is optional preparation for a comparable engineering role, not an Optiva simulator.
Source: Glassdoor Optiva interview report, interview dated January 2023
Optiva is distinct from Optiver, the trading firm, and from other similarly named businesses. Check the employer’s domain and the role description before using an assessment guide. Trading arithmetic tests should not be imported into this software hiring context.
Current application instructions matter especially after an ownership change. Older Optiva job notices can help explain technical backgrounds, but cannot establish that a team is recruiting today or that its interview process survived unchanged.
Qvantel’s December 31, 2025 completion announcement says Optiva joined its telecom monetization business. It also states that Optiva Inc. was dissolved as part of the arrangement. The careers link now leads to Qvantel, so verify the legal employer on a current opening.
A May 19, 2023 Optiva notice hosted by FERIT in Osijek described graduate software and QA roles. It required English communication and discussed Java development, testing, cloud exposure, and collaboration. This is evidence of that recruitment round, not an open 2026 academy.
Qvantel identifies cross-functional work involving developers, architects, project managers, UX designers, business analysts, and testers. It welcomes open applications when no matching advertised role is available.
Source: Qvantel careers
A principal software engineer report posted in September 2025 describes an Istanbul interview in January 2023: an HR conversation, a small home coding assignment, and a technical discussion. It is a single candidate account from before the acquisition.
Source: Glassdoor Optiva interview report: principal software engineer
The reviewed careers information does not name a standardized assessment vendor, public pass mark, game list, or retake rule for current roles. This does not prove that an individual hiring team will omit an exercise.
Source: Qvantel careers and available Optiva hiring evidence
The current destination is Qvantel’s careers page; it does not publish a detailed assessment sequence.
Source: Qvantel careers
The 2023 Osijek notice is useful background for engineering preparation.
There is no verified shared current recruiting calendar. Keep ownership events, historical interview dates, and vacancy deadlines separate.
| Cycle | Application dates | Likely assessment window | Evidence |
|---|---|---|---|
| Current Qvantel-directed applications | Vacancy-specific; use the advertised closing date | Provided in the invitation | No evidence found The careers page offers an open-application route but does not promise a review interval or publish a common test deadline. Source: Qvantel careers |
| Historical Optiva graduate notice | May 2023 notice; not a current opening | Not specified in the notice | Official source The notice announced that academy applications had closed while describing graduate roles available at that time. Do not reuse its application availability today. |
Use these recommendations to prepare for a comparable telecom software role after you have read the current description. They are not claimed interview questions.
Choose a system where incorrect or delayed results mattered. Describe how you checked correctness, monitored failures, and recovered safely. A concise example is more persuasive than listing every technology you have used.
Write a compact service or component and include meaningful tests. Be ready to discuss assumptions, error handling, and maintainability. If a take-home task is assigned, follow its actual scope instead of building an elaborate product.
For QA, explain how you would reproduce an intermittent fault and choose between manual and automated coverage. For project or business roles, practice resolving competing customer requirements and communicating a delivery decision.
Prepare an example where an engineer, tester, or business stakeholder changed your understanding of a problem. Explain the handoff, how you checked shared understanding, and the observable result. Qvantel’s stated emphasis on collaboration makes this a useful practice theme.
No. This page covers the telecom software business acquired by Qvantel. Optiver’s trading assessments are not evidence for Optiva.
Optiva’s careers page redirects to Qvantel careers. Check the current vacancy for its employing entity and location.
A current standard vendor or test lineup is not established by the reviewed public sources. Check the invitation before choosing provider-specific practice.
One older engineering account reports one. It is sensible to practice coding for a relevant software role, but that report does not guarantee an assignment today.
No. The cited notice is from May 2023 and explicitly said academy applications had closed. It provides historical role context only.
The sources below support this guide. Claim labels distinguish official information, candidate reports, and research inferences.
Optiva / Qvantel · Accessed
Qvantel · Accessed
FERIT, University of Osijek / Optiva · Accessed
Glassdoor · Accessed
4,700+ candidates from MIT, Stanford, Harvard, Yale and 100+ universities have run 68,000+ practice sessions here · median +25% score improvement by the fifth attempt · 84% of 6,000+ game ratings say “Great”.
Check the current employer, understand the limited interview evidence, and prepare for telecom software work.
By the Game Assessment Prep research teamUpdated September 14, 2026How we research
No verified Optiva game battery is established. The usable assessment evidence concerns a historical software assignment, and preparation should follow the exact technical role.
Category practice
The Istanbul principal software engineer account describes a short coding task before technical interviews. It does not identify a vendor or current test. A small coding project with tests is optional preparation for a comparable engineering role, not an Optiva simulator.
Source: Glassdoor Optiva interview report, interview dated January 2023
Optiva is distinct from Optiver, the trading firm, and from other similarly named businesses. Check the employer’s domain and the role description before using an assessment guide. Trading arithmetic tests should not be imported into this software hiring context.
Current application instructions matter especially after an ownership change. Older Optiva job notices can help explain technical backgrounds, but cannot establish that a team is recruiting today or that its interview process survived unchanged.
Qvantel’s December 31, 2025 completion announcement says Optiva joined its telecom monetization business. It also states that Optiva Inc. was dissolved as part of the arrangement. The careers link now leads to Qvantel, so verify the legal employer on a current opening.
A May 19, 2023 Optiva notice hosted by FERIT in Osijek described graduate software and QA roles. It required English communication and discussed Java development, testing, cloud exposure, and collaboration. This is evidence of that recruitment round, not an open 2026 academy.
Qvantel identifies cross-functional work involving developers, architects, project managers, UX designers, business analysts, and testers. It welcomes open applications when no matching advertised role is available.
Source: Qvantel careers
A principal software engineer report posted in September 2025 describes an Istanbul interview in January 2023: an HR conversation, a small home coding assignment, and a technical discussion. It is a single candidate account from before the acquisition.
Source: Glassdoor Optiva interview report: principal software engineer
The reviewed careers information does not name a standardized assessment vendor, public pass mark, game list, or retake rule for current roles. This does not prove that an individual hiring team will omit an exercise.
Source: Qvantel careers and available Optiva hiring evidence
The current destination is Qvantel’s careers page; it does not publish a detailed assessment sequence.
Source: Qvantel careers
The 2023 Osijek notice is useful background for engineering preparation.
There is no verified shared current recruiting calendar. Keep ownership events, historical interview dates, and vacancy deadlines separate.
| Cycle | Application dates | Likely assessment window | Evidence |
|---|---|---|---|
| Current Qvantel-directed applications | Vacancy-specific; use the advertised closing date | Provided in the invitation | No evidence found The careers page offers an open-application route but does not promise a review interval or publish a common test deadline. Source: Qvantel careers |
| Historical Optiva graduate notice | May 2023 notice; not a current opening | Not specified in the notice | Official source The notice announced that academy applications had closed while describing graduate roles available at that time. Do not reuse its application availability today. |
Use these recommendations to prepare for a comparable telecom software role after you have read the current description. They are not claimed interview questions.
Choose a system where incorrect or delayed results mattered. Describe how you checked correctness, monitored failures, and recovered safely. A concise example is more persuasive than listing every technology you have used.
Write a compact service or component and include meaningful tests. Be ready to discuss assumptions, error handling, and maintainability. If a take-home task is assigned, follow its actual scope instead of building an elaborate product.
For QA, explain how you would reproduce an intermittent fault and choose between manual and automated coverage. For project or business roles, practice resolving competing customer requirements and communicating a delivery decision.
Prepare an example where an engineer, tester, or business stakeholder changed your understanding of a problem. Explain the handoff, how you checked shared understanding, and the observable result. Qvantel’s stated emphasis on collaboration makes this a useful practice theme.
No. This page covers the telecom software business acquired by Qvantel. Optiver’s trading assessments are not evidence for Optiva.
Optiva’s careers page redirects to Qvantel careers. Check the current vacancy for its employing entity and location.
A current standard vendor or test lineup is not established by the reviewed public sources. Check the invitation before choosing provider-specific practice.
One older engineering account reports one. It is sensible to practice coding for a relevant software role, but that report does not guarantee an assignment today.
No. The cited notice is from May 2023 and explicitly said academy applications had closed. It provides historical role context only.
The sources below support this guide. Claim labels distinguish official information, candidate reports, and research inferences.
Optiva / Qvantel · Accessed
Qvantel · Accessed
FERIT, University of Osijek / Optiva · Accessed
Glassdoor · Accessed
4,700+ candidates · 68,000+ practice sessions across Game Assessment Prep.