Software Engineer Sr (Hybrid/ or Remote)

Telos•Ashburn, VA

1d•Hybrid

About The Position

The most security-conscious organizations trust Telos Corporation to protect their vital IT assets. The reputation of our company rests on the quality of our solutions and the integrity of our people. Explore what you can bring to our solutions in the areas of cyber, cloud and enterprise security. Be a part of the Telos culture and see what sets us apart! Telos offers an excellent compensation package with benefits that include generous paid time off, medical, dental, vision, tuition reimbursement, and 401k. Our employees enjoy more than just a great work environment! This position will be based at Ashburn Hybrid/ or Remote

Requirements

Bachelor's or equivalent with 7+ years of professional software engineering experience with a track record of delivering production software.
Strong TypeScript and JavaScript experience, including experience with Angular (or comparable SPA framework) and reactive patterns.
Experience with C#, .NET, and ASP.NET Core for building REST APIs and microservices.
Experience with relational databases and ORMs (Entity Framework Core, MySQL, or SQL Server).
Experience with AWS services (ECS, ECR, S3, SQS/SNS, Lambda, SSM Parameter Store) and containerization (Docker).
Experience with automated testing, CI/CD, and production releases.
Understanding of event-driven architecture and message brokers (SQS, SNS, or comparable).
Ability to understand complex business workflows and become a technical contributor across a platform.
Strong written and verbal communication skills.
Ability to work in a security-sensitive, regulated, or government-program environment.
Willingness to obtain a U.S. government security clearance (background check required).

Nice To Haves

Angular 21, PrimeNG, Angular Material, SCSS, RxJS, ngx-permissions.
.NET 8, Entity Framework Core, Pomelo EF MySQL, Dapper, MassTransit, Hangfire, Ocelot.
AWS GovCloud (us-gov-west-1 / us-gov-east-1), ECS Fargate, CloudFormation, Pulumi, IAM, KMS.
NIST 800-53 Rev 5 compliance, OIDC/OAuth 2.0, JWT authentication, FIDO2/Passkeys.
Experience with biometric capture, fingerprint processing, document scanning, or identity verification hardware integrations.
Experience with Twilio (SMS), Pay.gov (payment processing), Amazon SES (email), or ClamAV (antivirus scanning).
GitLab CI/CD, Snyk, Trivy, LocalStack for local development.
Experience with xUnit, Moq, Testcontainers, Playwright, or Karma/Jasmine.
Experience with multi-tenant SaaS architecture, RBAC, or feature toggle patterns.
Experience with observability tooling (CloudWatch, NLog, Container Insights).

Responsibilities

Design, implement, test, and support production software using TypeScript, Angular, C#, .NET 8, ASP.NET Core, and Entity Framework Core.
Develop features for the Angular 21 web portal, including PrimeNG component development, multi-tenant enrollment workflows, biometric capture integration, and SQL-based reporting.
Build and maintain .NET microservices handling authentication, enrollment, case management, fingerprint processing, payment, notifications, and orchestration.
Write unit and integration tests alongside feature development using Karma/Jasmine, Playwright, xUnit, FluentAssertions, and Testcontainers.
Contribute to GitLab CI/CD pipelines, Docker multi-stage builds, container security scanning (Snyk, Trivy), and release workflows across multiple environments (dev, staging, preprod, production).
Support application deployments running on AWS GovCloud including ECS (Fargate), ECR, S3, RDS (SQL Server/MySQL), SQS/SNS, SSM Parameter Store, and KMS.
Work with MassTransit event-driven messaging, Hangfire background job processing, and Ocelot API gateway routing.
Diagnose production issues across application, device, network, and infrastructure boundaries.
Work with product, operations, security, QA, government-program stakeholders, and external hardware vendors.
Participate in code reviews and contribute to engineering standards.
Document features, integration behavior, operational procedures, and architectural decisions.