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Liberty Personnel Services, Inc.
Application Security Engineer - Contract to Hire

Application Security Engineer - Contract to Hire

On site

Wilmington, United states

Mid level

Freelance

05-02-2026

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Skills

Python Java PowerShell Postman

Job Specifications

Job Details:

Information Security Engineer - Contract to Hire

4 Days onsite - No Sponsorship - No Third Parties - Must be local

Our client in Wilmington, DE is seeking an Information Security Software Engineer to design, implement, and maintain information security systems, programs, and security-as-code. This role will work closely with architects, developers, and business units to protect sensitive data and minimize cyber risks.

Responsibilities

Design and implement robust, scalable, and secure API integrations.
Collaborate with cross-functional teams to define requirements and ensure seamless integration.
Maintain and enhance existing APIs for performance and functionality.
Build workflows and pipelines.
Troubleshoot and resolve API-related issues.
Stay current with industry trends and best practices in API development.

Qualifications

Bachelor’s degree in Computer Science, IT, IS, or related field (or equivalent experience).
5+ years of coding experience in Python and Java.
Proven API development experience (Python, Java, Power Query, PowerShell).
Strong understanding of API design principles.
Experience with testing and documentation tools (Postman, Swagger).
Familiarity with authentication/authorization (OAuth, JWT).
Ability to develop and implement custom solutions.
US Citizen or Green Card Holder
Ability to be onsite 4 days a week

To apply send resumes to kg@libertyjobs.com

Katie George Westerberg

Senior Recruiting Manager

Liberty Personnel Services, Inc.

1001 Conshohocken State Rd, Ste 2-410| West Conshohocken, PA 19428

kg@libertyjobs.com

www.libertyjobs.com |Please connect with me on LinkedIn

About the Company

Liberty Personnel is widely recognized as the finest direct placement and contract recruiting firm in the region. For the last decade, Liberty Personnel's track record of delivering highly skilled personnel to employers is unparalleled. Our proprietary system of screening applicants and streamlining the hiring process has proven beneficial for both employers and job applicants. Our website, which was visited by 600,000 people last year, has developed into an essential destination site for job seekers. That means our webs... Know more