Software Engineer C#,C++, Docker, Containers, Kubernetes, AWS, Azure

DALE O’NEILL

Senior Backend Engineer Distributed Systems Scalable APIs Secure Cloud Platforms

Gilroy, CA ***.**********@*****.*** 408-***-**** LinkedIn GitHub PROFESSIONAL SUMMARY

Software engineer with 15+ years of experience designing and delivering distributed systems, cloud-native architectures, and secure APIs. Proven expertise in .NET, C#, C++, Kubernetes, and cloud platforms (Azure/AWS). Specialized in building authentication systems, managing device connectivity, and processing high-volume telemetry and data pipelines. Strong leadership in Agile environments, with a focus on scalable, secure, and resilient solutions.

CORE SKILLS

• Cloud & DevOps: Azure, AWS, Docker, Kubernetes, CI/CD, Azure DevOps

• Languages & Frameworks: C#, ASP.NET Core, REST, GraphQL, React, Angular, WebAssembly, WPF

• Distributed Systems: Microservices, Pub/Sub Messaging (NATS), Asynchronous Workflows, API Design

• Security & Auth: OAuth2, OpenID Connect, JWT, RBAC, IAM, API Key Management

• Databases: MSSQL, PostgreSQL, NoSQL

• Monitoring & Observability: Prometheus, Grafana, Serilog

• Testing & QA: XUnit, MSTest, Test Driven Development (TDD)

• Leadership & Planning: Technical Lead, System Roadmapping, Agile/Scrum PROFESSIONAL EXPERIENCE

Senior Software Engineer

Oteemo – Gilroy, CA

Feb 2023 – Jan 2025

• Modernized a critical credit system for the Federal Home Loan Bank using Azure and ASP.NET Core.

• Designed secure, authenticated APIs for customer interactions and internal operations.

• Built CMS monitoring systems with Prometheus and custom dashboards for service health.

• Implemented API key lifecycle management and role-based access controls.

• Technologies: AWS and ASP.NET Core, REST, React, Kubernetes, Prometheus, PostgreSQL, OpenID Connect, JWT, Docker.

Senior Software Engineer

AptonBio – Pleasanton, CA

Nov 2021 – Dec 2022

• Re-architected a DNA sequencing platform to support high-throughput processing

(100–300 TB).

• Migrated to event-driven microservices architecture for better scalability and reliability.

• Technologies: .NET Core, GraphQL, Kubernetes, Docker, C#, NoSQL, WPF, and React Lead Software Engineer

Agilent Technologies – Santa Clara, CA

Jul 2006 – Sep 2021

• Led a cross-functional team to transition enterprise monoliths to modular microservices.

• Architected Dockized applications and real-time scheduling systems.

• Built Remote Task Services using PowerShell, C#, and NATS for telemetry and automation.

• Technologies: C#, ASP.NET Core, Docker, NATS, PowerShell, MSSQL, Oracle. WPF, and React

Lead Software Engineer

Scientific Software – Pleasanton, CA

Jul 1997 – Jul 2006

• Developed secure content management systems for clients in regulated industries.

• Unified backend services to increase scalability and standardization.

• C++

Lead Engineer

Intersection Development Corp – Fremont, CA

1995 – Jul 1997

• Built centralized traffic management software for government agencies.

• C++

EDUCATION

Bachelor of Science in Computer Science

Brigham Young University – Provo, UT

KEY ACHIEVEMENTS

• Built authentication APIs and secure access gateways using OAuth2 and JWT.

• Delivered scalable, containerized systems supporting high-throughput device data.

• Migrated legacy platforms to distributed microservices in the cloud.

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