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Leidos is seeking a Software Developer for a 200+ FTE technical development program supporting the Sponsor's Enterprise PKI System as well as IdAM IICAM, Authentication, Authorization, Attributes and Digital Policy Management. The Software Engineer will work with a team of developers, engineers and testers to support and modernize existing PKI systems as well as developing new systems for other networks.

Core business hours are typically from 9 AM - 3 PM, five days a week. Hours can be flexible for either early arrivals, and/or late departures. Some after hours or weekend work may be required to accommodate system deployments and upgrades.

The Candidate must have a strong working knowledge of Public Key Infrastructure (PKI) and understand key concepts like digital certificates and Certificate Authorities (CAs). It is highly desired the Candidate also have knowledge of Registration Authorities (RAs), key management practices, cryptographic algorithms, certificate revocation procedures, and trust models. Additionally, the ability to design a robust system to issue, manage, and revoke digital certificates while ensuring the integrity and authenticity of users and entities within a network is desirable. Candidates who do not have all these abilities, but have the ability to learn them, will be considered.

Primary Responsibilities:

• The Developer will be part of a team of developers and cloud engineers that create new features for legacy PKI systems as sponsor's mission continues to expand and evolve.
• Our team also builds new systems as new mission needs arise.
• We are actively working to build new PKI systems on other networks.
• Our work rhythm revolves around the Scrum agile framework to deliver incremental enhancements on a 3-week cycle.
• Developers actively participate in planning deliverables and grooming the Jira backlog.
• We rely on team collaboration to continually fine tune performance and ensure clear communication.
• Developers also participate in a team rotation of O&M responsibilities.
• They are required to be on-call for after-hours support approximately one week every three months.

Required Qualifications:

• Must have an active TS/SCI with Polygraph to be considered
• Must have a Bachelor degree and at least 4 years of demonstrable experience
• Experience creating applications with Java, Springboot, and Amazon Web Services for backend components, focusing on low-latency, high-throughput distributed systems and as new systems are built, additional programming languages may be used.
• Experience working closely with product owners, business analysts, and other teams to translate business requirements into technical solutions.
• Experience analyzing and decomposing complex software systems and creating designs for scalability, testability, and performance.
• Experience writing custom scripts to install and configure code in EC2 instances.
• Experience using Git.
• Experience using CloudFormation scripts.
• Experience creating RESTful API.
• Experience using XML, JSON and YAML.
• Experience creating applications/services using Java, JavaScript, and bash scripting.
• Working with the team's security engineer to address, mitigate security findings stemming from system security scans.
• Experience with relational databases such as PostgreSQL and MySQL and use of SQL or PLSQL.
• Develop APls to Integrate systems and services.
• Hands-on experience with Linux (CLI).
• Hands on experience with scripting and Java.
• Experience with scripting and programming languages like BASH and Python.

Desired Quals:

• Experience with Public Key Infrastructure (PKI) and understand key concepts like digital certificates, Certificate Authorities (CAs), Registration Authorities (RAs), key management practices, cryptographic algorithms, certificate revocation procedures, and trust models.
• Experience with Jenkins.
• Experience delivering containerized applications with services similar to Docker and Kubernetes.
• Experience creating applications/services using Python.
• Experience with Elasticsearch and/or Kibana.
• Experience creating applications that rely on tokenization.
• Understanding of Identity Access Management (lAM) and Zero Trust concepts.
• Experience building microservices.
• Experience with automated testing frameworks such as Katalon Studio or Selenium.

FIP

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:July 29, 2026Pay Range:Pay Range $87,100.00 - $157,450.00

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.