iOS CNO Software Engineer

REDLattice, Inc.; Chantilly (VA); On-site; USD 160,000 - 220,000; Full time

Job summary

REDLattice in Chantilly, VA seeks an iOS CNO Software Engineer to advance national security programs. You will design and deploy custom iOS capabilities, research vulnerabilities, and contribute to exploit development within a collaborative engineering team.

Candidates should have strong experience in Objective-C/Swift/C/C++, Python, and kernel/OS internals, plus reverse engineering tools. This role requires TS/SCI with Polygraph and offers mission-driven work and growth opportunities.

Qualifications

• Advanced development in Objective-C, Swift, C, C++, and Python.
• Exploit development and memory corruption techniques.
• Kernel debugging and operating system internals knowledge.
• UNIX/Linux internals and system-level engineering.
• Network socket programming and protocol analysis.
• Reverse engineering tools including IDA Pro, Ghidra, LLDB, Frida, and Hopper (or equivalent).
• Security protections including ASLR, DEP, Pointer Authentication (PAC), code signing, sandboxing, and bypass techniques.
• Experience with Git/Bitbucket.

Responsibilities

• Design, develop, and deploy custom CNO capabilities for the iOS platform.
• Develop, test, and debug in Objective-C, Swift, C, C++, and Python environments.
• Conduct exploit development, vulnerability research, and proof-of-concept creation.
• Debug user-space and kernel components using LLDB and other native debugging tools.
• Reverse engineer native binaries, iOS frameworks, and operating system components.
• Work with iOS internals, kernel subsystems, security mechanisms, and runtime protections.
• Perform application research and behavioral analysis.
• Trace execution with native debugging and instrumentation tools to isolate and resolve issues.
• Produce documentation for operational use and sustainment.
• Mentor junior engineers and collaborate with mission operators.

Skills

Objective-C

Swift

C

C++

Python

Vulnerability research

Kernel debugging

UNIX/Linux internals

Network sockets

Reverse engineering tools

Git/Bitbucket

Security protections

Education

Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, Cybersecurity, or related

Tools

IDA Pro

Ghidra

LLDB

Frida

Hopper

Job description

iOS CNO Software Engineer

Location: Chantilly, VA

Security Clearance: Active TS/SCI with Polygraph Required

Employment Type: Full-Time

About REDLattice

At REDLattice, we are a global leader in delivering cutting-edge technical cybersecurity products and services. We are driven by mission-critical and innovative work that directly contributes to protecting our nation's and strategic partners' most vital infrastructure. Our teams develop advanced cyber capabilities, forensic solutions, and technical analysis tools that support law enforcement, defense, and national security operations. With offices in Northern Virginia, Melbourne, Florida, Tel Aviv, Israel, and other strategic locations, REDLattice is growing rapidly to meet the evolving needs of our customers.

Position Summary

REDLattice is seeking an iOS CNO Software Engineer to support the development of advanced cyber capabilities for mission-critical national security programs. The ideal candidate will have experience developing iOS software, conducting vulnerability research, reverse engineering native binaries, and building custom capabilities in support of offensive cyber operations.

In this role, you'll work as part of a highly collaborative engineering team tackling complex technical challenges across iOS platform internals, vulnerability research, exploit development, and reverse engineering. Engineers at REDLattice have the opportunity to make a direct impact, take ownership of challenging technical work, and collaborate with some of the industry's most respected cyber professionals developing next-generation mission capabilities.

Responsibilities

• Design, develop, and deploy custom CNO capabilities for the iOS platform.
• Develop, test, and debug in Objective-C, Swift, C, C++, and Python environments.
• Conduct exploit development, vulnerability research, and proof-of-concept creation.
• Debug user-space and kernel components using LLDB and other native debugging tools.
• Reverse engineer native binaries, iOS frameworks, and operating system components.
• Work with iOS internals, kernel subsystems, security mechanisms, and runtime protections.
• Perform application research and behavioral analysis.
• Trace execution with native debugging and instrumentation tools to isolate and resolve issues.
• Produce documentation for operational use and sustainment.
• Mentor junior engineers and collaborate with mission operators.

Required Experience

• Advanced development in Objective-C, Swift, C, C++, and Python.
• Exploit development and memory corruption techniques.
• Kernel debugging and operating system internals knowledge.
• UNIX/Linux internals and system-level engineering.
• Network socket programming and protocol analysis.
• Reverse engineering tools including IDA Pro, Ghidra, LLDB, Frida, and Hopper (or equivalent).
• Security protections including ASLR, DEP, Pointer Authentication (PAC), code signing, sandboxing, and bypass techniques.
• Experience with Git/Bitbucket.

Desired Experience

• ARM64 assembly language.
• Frida, objection, or similar instrumentation frameworks.
• Mobile vulnerability research and exploit chaining.
• iOS kernel, XNU, Mach, and Objective-C runtime familiarity.
• Jailbreak development or iOS security research experience.
• Offensive tool development and mission support experience.
• Ability to operate autonomously in a high-tempo environment.

Basic Qualifications

• Active TS/SCI with Polygraph required.
• Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, Cybersecurity, or a related technical discipline (or equivalent experience).
• Strong analytical, troubleshooting, and problem-solving skills.
• Excellent written and verbal communication skills.
• Ability to work independently and collaboratively within a highly technical team.

Why Join REDLattice?

• Work on mission-driven technology supporting critical law enforcement and national security missions.
• Join small, highly collaborative engineering teams where your contributions have a direct impact.
• Solve complex engineering challenges across advanced cyber platforms and technologies.
• Collaborate with experienced cyber engineers developing next-generation mission capabilities.
• Gain exposure to cutting-edge cyber research, capability development, and emerging technologies.
• Competitive compensation, comprehensive benefits, and opportunities for professional growth.

Equal Employment Opportunity Statement

REDLattice is an equal opportunity employer. We welcome applicants from all backgrounds and do not discriminate on the basis of race, color, religion, sex, age, national origin, veteran status, disability, or any other protected status. Join us at REDLattice and help shape the future of cyber innovation and national security.