Real, anonymous reports from people who interviewed for Software Engineer at Persistent Systems, newest first and distilled into what to expect across the loop.
I did an online interview via TalView for a telecom-focused software role, and it took place on September 16, 2026. The round felt aimed at gauging C++ on Linux with an emphasis on 5G Core concepts, which immediately set the tone that this wasn’t going to be generic “general programming” questioning.
After a recruiter-style touchpoint, my process felt smooth and professionally run, with timely communication at each stage. The interview environment was calm enough that I could actually focus on technical details, and it leaned toward discussing my background and career direction alongside the fundamentals.
Candidates can expect a mix of technical rounds focusing on core programming concepts, data structures, and specific technologies like Java, Spring Boot, and SQL. The difficulty can vary, but many report a steady challenge with an emphasis on practical application and problem-solving.
The interview process is generally structured with multiple stages, often starting with a recruiter call, followed by technical interviews and an HR discussion. Candidates appreciate the organized flow, but some report unexpected shifts in focus or role expectations during later rounds.
Interviews often include discussions about past projects and how candidates handle real-world challenges, emphasizing communication and problem-solving skills. Candidates are encouraged to connect their experiences to the role's requirements.
While initial communication is often timely and professional, several candidates report frustrations with a lack of follow-up or closure after interviews, leading to uncertainty about outcomes. This aspect can significantly impact the overall experience.
The overall difficulty of the interviews is described as average to challenging, with some candidates feeling that the evaluation criteria were not always clear or consistent. This can lead to confusion about performance and expectations.
Candidates should be prepared for coding assessments that test both theoretical knowledge and practical skills, often requiring real-time coding and problem-solving. The assessments may include specific technologies relevant to the role.