How long does the Zeplug ChargeGuru interview process take?

Most candidates spend between 4 and 8 weeks from recruiter screen to offer. The onsite loop itself runs in a single day or is split across two half-days, with debrief and offer typically within 5 business days after.

How should I prepare specifically for Zeplug ChargeGuru?

Focus on three things: (1) the company DNA shown above - what they actually grade for, (2) the rounds in your loop, especially the round most candidates underestimate, and (3) drilling on the question types in this guide using a structured framework like CIRCLES or STAR.

Does this apply to engineering or design roles at Zeplug ChargeGuru?

The DNA stays the same - what changes is the round mix. SWE candidates face coding screens instead of Product Sense; designers face portfolio reviews and design exercises. The "what they value" and behavioral signals carry across all functions.

Other roles at Zeplug ChargeGuru:Product Manager Software Engineer Sales Supply Chain

Growth · Software Engineer Interview Guide

How to Pass the Zeplug ChargeGuru Software Engineer Interview in 2026

The Zeplug ChargeGuru DNA (TL;DR)

Zeplug ChargeGuru's 'Continuer Besoin' principle drives the interview process, seeking candidates who demonstrate a deep understanding of customer needs, especially regarding the 'Ze Passe' and 'Klarna Abonnement' offerings. They evaluate how candidates can contribute to sustained service delivery and expansion in the energy sector.

The Zeplug ChargeGuru Interview Loop

Your onsite loop will typically consist of 5 rounds.

1
Round 1
Recruiter Screen
Motivation, role fit, logistics.
2
Round 2
Coding Screen
LeetCode-medium algorithmic problems under time pressure.
3
Round 3
System Design
Distributed systems, trade-offs at scale, architecture under constraints.
4
Round 4
Onsite Coding
LeetCode-hard, debugging, code clarity, edge cases.
5
Round 5
Behavioral / Leadership
Past evidence of ownership, influence, resolving conflict.

The Danger Zone: Top Reasons Candidates Fail

Based on our database of Zeplug ChargeGuru interview outcomes, avoid these common traps:

Attributing the decision solely to others without taking ownership.
Appearing unwilling to compromise or consider other viewpoints.
Not considering the long-term implications of the decision.
Blaming others for the conflict.

Test Yourself: Real Zeplug ChargeGuru Questions

Three real prompts pulled from our database.

Type · past-experience

Describe a situation where you had to make a significant technical trade-off, perhaps between performance, cost, or development speed. How did you evaluate the options, and what was the result?

Type · edge-cases

Consider the `get_charging_history` function from question zeplug-208. What are some edge cases or potential issues that could arise, and how would you handle them? Think about large datasets, invalid inputs, and system failures.

Type · algorithmic

Imagine Zeplug has thousands of charging stations. Given a list of charging station IDs and their current power output (in kW), and a list of EV battery capacities (in kWh), design an algorithm to efficiently assign EVs to charging stations to minimize charging time, considering that each station has a maximum power limit and each EV has a specific battery size. Assume EVs arrive sequentially.

+ many more questions, signals, and worked examples

Unlock the rubric

Zeplug ChargeGuru Interview Question Bank

A sample from our database, grouped by round. Sign up to see the full set.

9 of 16 questions shown

Recruiter Screen

1
Type · motivation
What interests you about Zeplug ChargeGuru's mission to accelerate EV adoption, and how do you see your software engineering skills contributing to our growth in the energy sector?

Coding Screen

2
Type · algorithmic
Imagine Zeplug has thousands of charging stations. Given a list of charging station IDs and their current power output (in kW), and a list of EV battery capacities (in kWh), design an algorithm to efficiently assign EVs to charging stations to minimize charging time, considering that each station has a maximum power limit and each EV has a specific battery size. Assume EVs arrive sequentially.
3
Type · algorithmic
Zeplug needs to track the real-time energy consumption of all its charging stations. Given a stream of energy readings (timestamp, station_id, kWh_consumed), write a function to calculate the average energy consumption per station over a sliding window of the last 5 minutes. Handle potential out-of-order readings.
+ 1 more questions in this round (sign up to unlock)

System Design

4
Type · system-design
Design a system for Zeplug that can predict charging demand at different locations and times of day, based on historical data, weather, local events, and EV registration data. The system should be able to provide forecasts for the next 24-48 hours.
5
Type · system-design
Design a distributed system for managing charging station availability and status updates in real-time across a large network. Consider how to handle network latency, intermittent connectivity, and ensure data consistency between the central system and individual stations.
+ 1 more questions in this round (sign up to unlock)

Onsite Coding

6
Type · debugging
A user reports that their EV is not charging correctly at a specific Zeplug station. They see an error code 'ERR_AUTH_FAIL' in the app. Debug this issue. Assume you have access to logs from the charging station, the user's app, and the backend authentication service.
7
Type · coding
Implement a function `get_charging_history(user_id, start_date, end_date)` that retrieves all charging sessions for a given user within a specified date range. Assume you have a database connection object `db` with a method `query(sql_string)` that returns a list of dictionaries representing session records. Ensure the query is safe against SQL injection.
+ 2 more questions in this round (sign up to unlock)

Behavioral / Leadership

8
Type · past-experience
Tell me about a time you had to debug a complex, intermittent issue in a production system. What was your process, what tools did you use, and what was the outcome?
9
Type · past-experience
Describe a situation where you had to make a significant technical trade-off, perhaps between performance, cost, or development speed. How did you evaluate the options, and what was the result?
+ 3 more questions in this round (sign up to unlock)