L3Harris Interview Guide

Updated weekly

Everything we know about interviewing at L3Harris: what each round tests and compensation by level.

Software Engineer

01Skills

What L3Harris evaluates

How often each skill shows up across reported interview loops.

Software Engineering (General)100%Systems Engineering96%Tactical Data Link (Software)92%SATCOM Systems (Software)89%Software Integration85%Networking Fundamentals82%Data/Message Protocols78%Wideband Planning75%Communication Systems (Concepts)71%Field Engineering / Field Services Software67%SEA5000 Systems64%Software Architecture60%

02Role guides

Interview guides by role

Each guide has the questions L3Harris interviewers actually ask, the loop structure, and total compensation by level.

1roles

Software Engineer

What is a Software Engineer at L3Harris? As a Software Engineer at L3Harris, you are at the forefront of engineering solutions that support mission-critical defense, intelligence, and aerospace operations. This role is not merely about writing code; it is about building high-reliability systems that ensure connectivity, data integrity, and operational...

$114k–$265kView

03Compensation

What L3Harris pays, by level

Estimated total compensation: base salary plus stock and annual cash bonus.

Median $190k

LevelBaseStockBonus / yrTotal comp

All levels$118k–$251k——$114k–$265k

Ranges blend verified compensation data points · base + stock + annual bonus shown. Estimates only.

04FAQ

L3Harris interview FAQ

Answered from real candidate and workplace data, marked up for rich results.

How much does L3Harris pay for data roles?

Reported total comp for data roles at L3Harris ranges from roughly $114k to $265k per year, varying by level, team, and location.

What topics does L3Harris test in interviews?

L3Harris interviews most often cover Software Engineering (General), Systems Engineering, Tactical Data Link (Software), SATCOM Systems (Software), and Software Integration. The exact emphasis depends on the specific role you apply for.

What roles can I prepare for at L3Harris?

Dataford has interview guides for 1 role at L3Harris, including Software Engineer.

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