Software Engineer

ExistX

Software Engineer rapidly prototyping backend services for national security solutions. Collaborating with multidisciplinary teams to develop mission-critical applications and systems.

Posted 5/8/2026full-timeBaltimore • Maryland • 🇺🇸 United StatesMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

AWSAzureCloudCyber SecurityDockerHaskellJavaKubernetesMicroservicesPythonRust

About the role

Key responsibilities & impact

Translate complex research designs into seamless, high-performance software applications
Design and implement mission-critical software components and services
Collaborate with cross-functional teams of experts to implement modern software engineering best practices
Mentor developers and provide hands-on technical guidance
Develop system architectures and help drive the technical roadmap
Create and maintain technical documentation

Requirements

What you’ll need

BS in Computer Science or related field
5+ years professional software development experience developing enterprise software applications
Expertise with multiple backend programming languages such as Java, C/C++, Rust, Python, or similar languages
Experience developing scalable systems capable of handling large data sets
Passion for writing high quality, high performance code
Strong technical writing skills and experience with developing and maintaining documentation
Knowledge of cryptographic algorithms or cybersecurity concepts (preferred)
Experience with programming languages such as Cryptol, Haskell, or similar domain specific languages (preferred)
Experience with microservices and cloud-native platforms such as Docker, Kubernetes, AWS or Azure (preferred)
Experience leading technical initiatives and mentoring developers (preferred)

Benefits

Comp & perks

Competitive salaries
Employer paid medical insurance plan
Health Savings Account (HSA) with employer contributions
Employer paid dental and vision insurance plans
401(k) retirement plan with employer match
Flexible work location with a remote friendly culture
Generous paid time off (25 days per year)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

JavaC/C++RustPythonCryptolHaskellmicroservicescloud-native platformscryptographic algorithmscybersecurity concepts

Soft Skills

mentoringtechnical guidancecollaborationtechnical writingcommunication

Certifications

BS in Computer Science