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Enterprise · Software Engineer Interview Guide

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Interview language: English

How to Pass the BP Software Engineer Interview in 2026

The BP DNA (TL;DR)

BP values safety, sustainability, and operational excellence. They seek candidates demonstrating problem-solving, adaptability to global energy challenges, and strong collaboration within a structured, process-driven environment, emphasizing long-term impact and ethical conduct.
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The BP Interview Loop

Your onsite loop will typically consist of 5 rounds.

  1. 1

    Round 1

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

    Round 2

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

    Round 3

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

    Round 4

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

    Round 5

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

The Danger Zone: Top Reasons Candidates Fail

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

  • Describing a situation where the candidate ignored the risk to meet a deadline
  • Using a naive O(n*m) approach without optimization.
  • Not considering data ingestion challenges from diverse, potentially unreliable sources.
  • Not planning for scalability and potential bottlenecks at the gateway.

Test Yourself: Real BP Questions

Three real prompts pulled from our database.

Type · Algorithmic

Given a stream of sensor readings from a wind turbine (temperature, vibration, wind speed), design an algorithm to detect anomalies that could indicate potential mechanical failure. Assume readings are timestamped and may have missing values.

Type · System Design

Design an API gateway for managing access to various internal services used by BP's retail fuel station network (e.g., inventory management, pricing updates, loyalty programs). Consider security, rate limiting, and request routing.

Type · Past Experience

Describe a challenging technical problem you encountered on a project related to energy infrastructure or operations. What was your specific role, how did you approach the solution, and what was the impact?

+ many more questions, signals, and worked examples

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BP Interview Question Bank

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

9 of 14 questions shown

1

Recruiter Screen

1
  1. 1

    Type · Motivation

    Why are you interested in a Software Engineer role at BP, specifically within the energy sector?
2

Coding Screen

3
  1. 2

    Type · Algorithmic

    Given a stream of sensor readings from a wind turbine (temperature, vibration, wind speed), design an algorithm to detect anomalies that could indicate potential mechanical failure. Assume readings are timestamped and may have missing values.
  2. 3

    Type · Algorithmic

    BP operates a large network of charging stations for electric vehicles. You need to efficiently find the closest available charging station for a user based on their current location and desired charging speed. Design a data structure and algorithm to support this query.
  3. + 1 more questions in this round (sign up to unlock)
3

System Design

4
  1. 4

    Type · System Design

    Design a system to monitor and predict the optimal maintenance schedule for BP's global fleet of LNG (Liquefied Natural Gas) tankers. The system should ingest data from various sensors, weather forecasts, and operational logs.
  2. 5

    Type · System Design

    Design a real-time carbon emissions tracking system for BP's industrial operations. The system needs to aggregate data from thousands of sources (factories, vehicles, pipelines) and provide dashboards for compliance and analysis.
  3. + 2 more questions in this round (sign up to unlock)
4

Onsite Coding

3
  1. 6

    Type · Algorithmic

    You are given a complex dependency graph representing tasks in a refinery process. Some tasks can run in parallel, while others have strict sequential dependencies. Write code to determine a valid execution order (topological sort) and identify potential deadlocks.
  2. 7

    Type · Debugging

    A microservice responsible for calculating fuel price adjustments based on market data is intermittently producing incorrect results. Analyze the provided (simplified) code and logs to identify and fix the bug.
  3. + 1 more questions in this round (sign up to unlock)
5

Behavioral / Leadership

3
  1. 8

    Type · Past Experience

    Tell me about a time you had to work with a complex, legacy system where documentation was scarce. How did you approach understanding and modifying it?
  2. 9

    Type · Past Experience

    Describe a challenging technical problem you encountered on a project related to energy infrastructure or operations. What was your specific role, how did you approach the solution, and what was the impact?
  3. + 1 more questions in this round (sign up to unlock)

Unlock all 14 BP questions, free

No credit card. Every question with its framework, the grading signals interviewers score against, and a worked answer for each.

Unlock all 14 BP questions

Interview tracks at BP

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

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Practice BP interviews end-to-end

BP Mock Interview

Run a live mock interview with our AI interviewer using BP-style prompts. Get scored on structure, signal, and answer length - exactly how the real loop grades you.

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STAR Stories for BP Behavioral Rounds

Build a Story Bank of your past wins, mapped to the leadership signals BP interviewers grade on. Reuse them across every behavioral round.

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BP Interview Prep Hub

The frameworks behind every BP round: CIRCLES for product sense, hypothesis-driven debugging for analytical, STAR for behavioral. Learn each one in 10 minutes.

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Interview Frameworks

CIRCLES, STAR, AARRR, RICE, MECE. The exact frameworks that make BP interviewers nod instead of frown. Step-by-step playbooks with the moves and the pitfalls.

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Sample answers

What a strong answer to these BP interview questions shows.

Given a stream of sensor readings from a wind turbine (temperature, vibration, wind speed), design an algorithm to detect anomalies that could indicate potential mechanical failure. Assume readings are timestamped and may have missing values.

A strong answer shows: Ability to handle streaming data and missing values.; Understanding of time-series analysis and anomaly detection.; Consideration of performance and resource constraints..

Design an API gateway for managing access to various internal services used by BP's retail fuel station network (e.g., inventory management, pricing updates, loyalty programs). Consider security, rate limiting, and request routing.

A strong answer shows: API design principles.; Security best practices (authentication, authorization, rate limiting).; Distributed system patterns (load balancing, service discovery).; Scalability and reliability considerations..

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