| Operating Systems |
Linux (RHEL/Rocky/AlmaLinux, Ubuntu LTS, Debian), Windows 11 and Windows Server 2019/2022/2025, macOS, and embedded/real-time Linux. Deep experience with the full mission-operations stack from kernel-level tuning to user-facing applications. |
| Architectures |
x86_64 and ARM64 (AArch64) — including Apple Silicon, AWS Graviton, and Ampere Altra. Cross-platform builds, containerized workloads (Docker, Podman, Kubernetes), microservices, event-driven and service-oriented architectures. |
| Cloud & Infrastructure |
AWS, Microsoft Azure, and Google Cloud — including IaC with Terraform and Ansible, CI/CD pipelines (GitHub Actions, GitLab CI, Jenkins), and on-premises / hybrid deployments to colocation data centers. |
| Languages |
Java (17/21 LTS), C, C++ (modern C++17/20), C#/.NET, Python 3, TypeScript / JavaScript (Node.js), Go, Bash, PowerShell, SQL. Legacy maintenance experience with Objective-C, Perl, Tcl, and Fortran. |
| Server / Web Tier |
Apache HTTP Server, NGINX, Tomcat, Jetty, IIS. RESTful and gRPC services, WebSockets, GraphQL, OpenAPI/Swagger, OAuth 2.0 / OIDC. Reverse proxying, TLS, and zero-trust deployment patterns. |
| Client / Front-End |
Modern HTML5, CSS3, and ECMAScript (TypeScript). Component frameworks (React, Vue, Svelte). Static site generators (Eleventy, Astro, Next.js). Accessibility (WCAG) and progressive enhancement as first-class concerns. |
| Databases |
PostgreSQL, Microsoft SQL Server, MySQL/MariaDB, SQLite, Oracle. NoSQL stores (Redis, MongoDB, DynamoDB). Time-series (InfluxDB, TimescaleDB). Connection through JDBC/ODBC, ORMs, and native drivers. |
| DevOps & Tooling |
Git, GitHub / GitLab / Azure DevOps. Containerization, observability (Prometheus, Grafana, ELK/OpenSearch), structured logging, and infrastructure-as-code. Automated testing, static analysis, and SBOM/supply-chain hygiene. |
| Security |
NIST 800-53 / 800-171 alignment, FIPS 140-validated cryptography, hardened Linux baselines, secrets management (HashiCorp Vault, cloud KMS), and experience supporting controlled-environment deployments for federal customers. |
| Mission-Critical & Real-Time |
Decades of experience delivering mission-critical satellite ground systems and strategic-communications software with strict uptime, determinism, and integration requirements. Comfortable across the full lifecycle — requirements, architecture, implementation, V&V, and long-term sustainment. |