Served as lead engineer for a startup building a category-defining multi-cloud data sharing platform.Contributed to design and implementation of a novel distributed ledger (blockchain) for enterprises.Responsible for distributed system design for high-throughput, low-latency, serializable transaction processing spanning regions and clouds.Worked closely with CEO, product, and customer teams to define and implement product features.Implemented user-facing APIs, storage layer, batch processing, cloud infrastructure, and operational tooling (Rust, Python, GraphQL, AWS Lambda, AWS DynamoDB, etc.).Conducted performance profiling and optimization.Supported product in production, implementing operational tooling, processes, and observability practices.Hired and mentored technical staff.

Providing software engineering consulting services with specialization in: + Cloud-native architecture, scalability, and security+ DevOps and AWS consulting and training+ Serverless architectures+ Custom software engineering services: web, mobile, backend, etc. - Java, Golang, Python, JavaScript, C/C++, C#, etc.

Designing, building, and operating highly available and globally distributed cloud services at massive scale for AWS Serverless.Served as one of the founding engineers of the API Gateway team leading conceptual design, architecture, software design, and implementation of core components of the API Gateway service leading up to and following product launch.Owned design and implementation of critical product features, including API Gateway REST API, HTTP request/response implementation, AWS Lambda integration, CloudWatch logging, payload mapping templates, Swagger/OpenAPI integration, request validation, AWS Marketplace integration, 3rd-party developer portal application.Served as a senior team member on AWS Lambda providing technical guidance to junior developers and contributing design and implementation to major product features such as Lambda Layers, Application Load Balancer Lambda-as-a-target, canary deployments with weighted aliases, Lambda@Edge/CloudFront integration, and GDPR compliance. Improved availability, security, and team velocity through various operational, security, and architectural improvements.Served as oncall for both API Gateway and Lambda, operating services at scale and responding to production issues across many distinct production stacks globally.Provided architectural guidance and mentoring for developers within AWS Serverless as well as other AWS services integrating with Lambda.

Served as team lead and ScrumMaster for a small agile (Scrum) development team taking anew product offering in the corporate education space from concept to production.Software architecture and development using C# / .NET, Entity Framework, ASP.NETMVC, HTML/CSS/jQuery, etc.Responsible for bringing new SaaS application to a production-ready state, includinginternationalization (i18n) and localization (l10n), accessibility, security, and scalability.Developed automated deployment infrastructure using Puppet and a continuous deliverypipeline using Jenkins, MSBuild, Powershell, NUnit, and related technologies.Served as acting product owner and representative chosen to interface with otherstakeholders including development directors, SaaS, release management, support, sales,marketing, documentation, and user experience teams.

Served as a senior developer of a market-leading anti-money-laundering and fraud detection product serving over 800 financial institutions. Involved in all aspects of product development life-cycle including customer interviews, customer persona modeling, interaction design, technology selection, software design and implementation, development of testing strategies, test automation, code refactoring, quality measurement / defect management, and user experience measurement.Experience included working in a tight-knit agile development team, mentoring junior developers, and collaborating with marketing, documentation, and product management teams internally as well as customers, and regulators externally. Agile project management (Scrum) and software development on a Java-based technology stack (Java, JDO/Kodo, JSF, HTML/CSS/jQuery, etc).Other responsibilities included software architecture in a SaaS environment, test-driven development (TDD), automation of unit, performance, scalability, and GUI testing, interaction design and usability assessment.

Developed production features for electronic charting systems and communication systems for marine applications in C++/C#.

Carried out formal verification procedures and developed software testing and reporting tools (Perl, Bash, *nix) for product development and verification teams for an IP routing platform.

Provided improvements and defect fixes for OS and radio firmware code (C) on target hardware devices and conducted network systems emulation testing.

Software development (C/C++) for multiple real-time embedded operating systems running on a variety of hardware devices.

Developed drivers and applications to support various Radio Frequency Identification (RFID) hardware devices under the Windows and PalmOS platforms. (C/C++/C#)

Designed and implemented custom web-based applications and websites based on client needs (PHP/MySQL/HTML/CSS).