Senior Fullstack Software Engineer (C#/.NET/React)

TL;DR

Senior Fullstack Software Engineer (C#/.NET/React): Designing and scaling modern web applications end-to-end with an accent on cryptographic evidence pipelines, high-performance data architecture, and secure audit implementations. Focus on building modular .NET services and React frontends while integrating complex AI-driven simulation tools for logistics and mobility decision-making.

Location: Must be based in the USA

Salary: $155,000–$215,000

Company

hirify.global is an incubation firm building and investing in technology-led companies focused on healthcare, cybersecurity, and national security.

What you will do

• Design and ship modular .NET services and modern React frontends.
• Architect high-performance PostgreSQL schemas and EF Core queries for business logic and RBAC.
• Build caching layers with Redis and leverage S3 for large-scale data artifacts.
• Collaborate on design proposals defining data contracts and API boundaries.
• Partner with product and design teams to deliver iterative, high-quality technical solutions.
• Leverage AI tools to accelerate development while maintaining high security and quality standards.

Requirements

• Must be based in the USA
• 6+ years of relevant software engineering experience.
• Production experience with cryptographic evidence pipelines, HMAC integrity, and signed checkpoints.
• Fluency in PostgreSQL transactional guarantees and advisory-lock patterns.
• Experience with AWS KMS integration and envelope encryption.
• Familiarity with ATO-evidence-bearing audit implementations.

Nice to have

• Prior DoD or federal ATO submission experience.
• NIST SP 800-53 AU family control implementation experience.
• Knowledge of CDS integrations and ISSE approval workflows.

Culture & Benefits

• Fully remote, results-based work environment.
• 100% employer-paid comprehensive health insurance (medical, dental, vision) for employee and family.
• 14 weeks of fully-paid parental leave.
• Unlimited PTO with manager approval.
• Equity incentives and optional 401K plan.
• Professional development and continuous learning opportunities.