Dataford
Top 50
Prep plan
Updated weekly · Last refresh Aug 30

Citizens Software Engineer Interview Questions

The questions to prepare for a Citizens Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

50questions
~7htotal time
Track your progressSign up free to work through all 50 questions and resume where you left off.
Start practicing free →
1
CodingStart here. 5 questions · ~44 min
Two Sum with TargetEasy
Practice

Use a hash map to find two array elements that sum to a target in O(n) time.

Hash TablesArraysStringsCitizens
Linked List ReversalEasy
Practice

Reverse a singly linked list in-place using iterative pointer manipulation.

RecursionLinked ListsArraysCitizens
HackerRank Basics and DatabasesEasy

Tests readiness for typical early-stage programming and database screening formats.

Hash TablesArraysSearchingCitizens
Explaining Coding Challenge ReasoningEasy

Tests clarity of reasoning, algorithmic thinking, and ability to communicate tradeoffs.

Hash TablesArraysSearchingCitizens
More Coding questions with a free account
2
SQL & Data Manipulation5 questions + 3 drills · ~74 min
Break Reporting Queries with CTEsMedium

Explain how CTEs split a complex reporting query into readable, reusable steps.

SubqueriesData WranglingCTEsCitizens
Troubleshoot Duplicate Rows After JoinsHard

Explain why multi-join workflows create duplicate rows and how to trace the source.

JoinsData WranglingSelf-JoinsCitizens
Basic Database Screening TopicsEasy

Tests SQL fundamentals and expectation setting for early technical interviews.

JoinsGroup ByAggregationsCitizens
Top Customers by Sales RevenueEasy
Practice
Practice drill

Use GROUP BY and SUM to rank the top 10 customers by total revenue from a single sales table.

RankingGroup ByAggregationsHousecall ProEquifaxXYZ
Top Customers by Region VolumeMedium
Practice
Practice drill

Find the top 3 customers in each region by transaction volume using joins, aggregation, and window ranking.

Window FunctionsJoinsRankingJPMorganChaseSilicon Valley BankNavi
Second Highest Without AggregatesHard
Practice
Practice drill

Find the second highest salary in each department without using aggregate functions.

SubqueriesRankingSelf-JoinsCredit GenieDevoteamCisco Restaurant + Bar
More SQL & Data Manipulation questions with a free account

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
3
Behavioral & Leadership40 questions · ~350 min
What Drives Your Best WorkEasy

Tests whether your motivation translates into ownership, KPI focus, prioritization, and clear stakeholder communication.

CommunicationUser NeedsLeadershipCitizens
More Behavioral & Leadership questions with a free account
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.