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Enterprise · Software Engineer Interview Guide

How to Pass the Eni Software Engineer Interview in 2026

Το DNA της Eni (TL;DR)

Eni values candidates demonstrating strong technical acumen, practical problem-solving capabilities, and a commitment to safety and operational excellence. They seek individuals who can collaborate effectively and align with their strategic focus on energy transition and sustainability.

Οι συνεντεύξεις tech διεξάγονται στα αγγλικά

Ακόμη κι όταν κάνετε αίτηση τοπικά, η ίδια η συνέντευξη γίνεται σχεδόν πάντα στα αγγλικά. Σας δείχνουμε κάθε ερώτηση και prompt πρώτα στα αγγλικά — τη γλώσσα στην οποία θα γίνει η συνέντευξη — με μετάφραση από κάτω για να προετοιμαστείτε στην ισχυρότερη γλώσσα σας.

Το Interview Loop της Eni

Το onsite loop σας θα αποτελείται τυπικά από 5 γύρους.

  1. 1

    Γύρος 1

    Recruiter Screen
    Motivation, role fit, logistics.
  2. 2

    Γύρος 2

    Coding Screen
    LeetCode-medium algorithmic problems under time pressure.
  3. 3

    Γύρος 3

    System Design
    Distributed systems, trade-offs at scale, architecture under constraints.
  4. 4

    Γύρος 4

    Onsite Coding
    LeetCode-hard, debugging, code clarity, edge cases.
  5. 5

    Γύρος 5

    Behavioral / Leadership
    Past evidence of ownership, influence, resolving conflict.

Η ζώνη κινδύνου: Κορυφαίοι λόγοι που οι υποψήφιοι αποτυγχάνουν

Με βάση τη βάση δεδομένων μας με αποτελέσματα συνεντεύξεων Eni, αποφύγετε αυτές τις συνηθισμένες παγίδες:

  • Not reflecting on what they could have done differently.
  • Focusing solely on personal career growth without mentioning contribution.
  • Not considering the streaming nature of the data and proposing an offline batch solution.
  • Ignoring memory constraints and suggesting algorithms that require loading all data.

Δοκιμάστε τον εαυτό σας: Πραγματικές ερωτήσεις Eni

Τρία πραγματικά prompts τραβηγμένα από τη βάση δεδομένων μας.

Τύπος · Influence

Describe a time you had to influence a stakeholder or team who initially disagreed with your proposed supply chain solution. How did you approach it, and what was the outcome?

Τύπος · algorithm

Develop a function to estimate the total CO2 emissions from a fleet of Eni's vehicles based on their routes and fuel consumption data. The function should be optimized for speed, as it will be called frequently.

Τύπος · motivation

What interests you about working at Eni, specifically within our energy sector, and how do you see your software engineering skills contributing to our mission?

+ πολλές ακόμη ερωτήσεις, σήματα και επεξεργασμένα παραδείγματα

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Eni Interview Question Bank

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

9 of 18 questions shown

1

Recruiter Screen

1
  1. 1

    Τύπος · motivation

    What interests you about working at Eni, specifically within our energy sector, and how do you see your software engineering skills contributing to our mission?
2

Coding Screen

3
  1. 2

    Τύπος · algorithm

    Given a stream of sensor readings from offshore oil platforms, design an algorithm to detect anomalies that could indicate equipment failure. The readings have timestamps and various numerical values (e.g., pressure, temperature, vibration). Assume you have limited memory.
  2. 3

    Τύπος · data-structure

    Eni operates a large network of gas pipelines. You need to efficiently find the shortest path for gas flow between any two points in the network, considering varying flow rates and potential bottlenecks. Model this network and implement a pathfinding algorithm.
  3. + 1 more questions in this round (sign up to unlock)
3

System Design

4
  1. 4

    Τύπος · distributed-system

    Design a system to monitor and predict energy demand across different regions in Italy, integrating data from smart meters, weather forecasts, and historical consumption patterns. The system needs to be highly available and scalable.
  2. 5

    Τύπος · distributed-system

    Design a real-time alerting system for Eni's renewable energy assets (e.g., wind farms, solar plants). The system should ingest data from numerous sensors, detect critical events (e.g., equipment malfunction, suboptimal performance), and notify relevant personnel immediately.
  3. + 2 more questions in this round (sign up to unlock)
4

Onsite Coding

4
  1. 6

    Τύπος · algorithm

    Implement a function that takes a list of historical energy prices and predicts the price for the next day using a simple moving average (SMA) and exponential moving average (EMA). Handle edge cases like insufficient data points.
  2. 7

    Τύπος · debugging

    Here is a Python script intended to calculate the carbon footprint of a specific Eni project based on its energy consumption data. It's producing incorrect results for some inputs. Debug and fix the script. [Provide a code snippet with subtle bugs, e.g., off-by-one errors, incorrect unit conversions, flawed logic in conditional statements].
  3. + 2 more questions in this round (sign up to unlock)
5

Behavioral / Leadership

6
  1. 8

    Τύπος · conflict-resolution

    Tell me about a time you had a significant technical disagreement with a colleague or manager. How did you approach the situation, and what was the outcome?
  2. 9

    Τύπος · ownership

    Describe a complex technical challenge you faced on a project related to energy infrastructure or operations. What steps did you take to own the problem and ensure its successful resolution?
  3. + 4 more questions in this round (sign up to unlock)

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Interview tracks at Eni

How Eni's DNA translates across functions. Pick your role.

SWE candidates should highlight experience in large-scale data processing, AI/ML for energy optimization, or cybersecurity relevant to critical infrastructure. Emphasize robust coding skills, system design for industrial applications, and an understanding of energy sector data challenges.

Influence

Describe a time you had to influence a stakeholder or team who initially disagreed with your proposed supply chain solution. How did you approach it, and what was the outcome?

algorithm

Develop a function to estimate the total CO2 emissions from a fleet of Eni's vehicles based on their routes and fuel consumption data. The function should be optimized for speed, as it will be called frequently.

+ 1 more

Unlock the Software Engineer grading rubric for Eni

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Compare Eni with other tech interviews

Same DNA, different bar. Browse the closest companies in our database and see how their loops differ.

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