Jay Hannah Email & Phone Number

Omaha, Ne, Us

Omaha, Ne

Telecommuting consultant. Mostly Perl, Python, Golang, large scale databases, REST APIs, web. Industries include e-commerce (retail), large event / venue equipment rental (and data mining thereof), advertising technology, and various start-ups.In principle recent clients have a lot of DevOps support so I can focus on programming. In practice I've been learning a lot of DevOps because resources aren't available and sometimes I have access to fix things.I have a functional / "emergency" understanding of deployment of various stacks for monoliths and "micro-services." Clients have swung back and forth between those strategies over time. Most recent deployments on "bare metal," Xen VMs, in-house managed Kubernetes, and AWS (EC2, ECS, S3, etc.). Those stacks are variously driven by Docker, Docker Compose, Chef/Ansible, Helm Charts (of which I know very little), and various other tools.

AI (LLM) start-up client further developing their Python (FastAPI) REST API stack (deployed via Google Cloud Run), and their Google FireStore (FireBase) NoSQL schema, expanding their feature set. Established Pytest CI regime, added/refactored many REST endpoints. Bridged them to also use PostgreSQL ("Cloud SQL") when FireBase statistical capacities proved massively inefficient (slow) for multiple business org and timeframe roll-ups.

New York, New York, United States

Worked as staff augmentation consultant for REST API team and associated services. The company employed ~140 engineers. Our primary mission was to design, maintain, and enhance a PostgreSQL schema and REST APIs for modifying data in that schema, primarily for configuration of advertising campaigns.Primary PostgreSQL: 273 tables, 75 views, 234 functions (mostly PL/pgSQL). ~500GB, 80M rowsAPI v3 stack: Golang 1.20.5, gin 1.9.1 web framework. 67K lines of tests, 116K total lines of code. Stack built locally (development) via Docker Compose (DB and application). IDE: Visual Studio Code plus custom linting rules (revive). Continuous integration via CircleCI. If tests all pass, topic branches deployed automatically to in-house Kubernetes cluster for both QA and PROD. Fully automated continuous delivery via Helm Charts. Prometheus integration for statistics. Production alerting via PagerDuty. Log aggregation via SumoLogic, including Sumologic Traces (in-app OpenTelemetry hooks).API v2 stack: Perl 5.30.1, Catalyst 5.90128 web framework. 98K lines of tests, 232K total lines of code. Stack built locally (development) via Docker Compose (DB and applications (main API and ancillary applications)). IDE: Whatever the developer prefers. Visual Studio Code and vim were both common. Continuous integration via Jenkins, which also served as our "continuous delivery" mechanism to pre-allocated in-house clusters of QA servers (18 sets). Production deployment automated and integrated into Slack, sending status updates for ~15 different phases of production rollout. All hardware pre-allocated, dedicated (not dynamic). statsd integration for statistics. Production alerting via PagerDuty. Log aggregation via SumoLogic. No OpenTelemetry.(See resume for more information about my various responsibilities at this partner.)

Omaha, Ne

* Leader of Omaha's Perl user group. Hosted talks every month, presented things most months.* Perl Mongers International Chief Ticket Monkey http://www.pm.org

Omaha, Ne

Launched my own consulting company focusing on databases, interfacing, e-commerce and website solutions.

Omaha, Ne

* Design, manage, implement, and document complex software/data systems to fulfill the stated technology goals of the senior management team. Provide regular status updates and cost estimates.* Until 2004, managed all daily operations for central reservations call center and data center, a $400M revenue stream. In 2004, hired an IT Manager to manage daily operations to allow more focus on high-level development.* In tandem with Software Architect, implemented custom Internet booking engine (www.omnihotels.com), saving the company $140M a year in commissions (Linux, Apache, OO Perl 5, mod_ssl, mod_perl, Linux based load balancing and high availability).* Continuing to replace legacy systems with centralized object oriented Class structure (OO Perl 5) that controls all database I/O (central reservation system is 300 tables in monolithic RDBMS install), centralizing disparate business controls into single, consistent framework.* Replacing numerous inconsistent system interfaces with single OpenTravel Alliance (hospitality / travel industry standards body) XML specification to ensure data integrity and consistent application of business rules. In this design, all data exchange inside and outside the company will be served by a single highly available and load balanced cluster of low-cost Linux servers running a single application framework enforcing all business rules.* First hired to replace a primarily one-man development team who was departing and a series of consultants.* Established documentation systems, version control, operating procedures, monitoring and paging, and departmental cross training.

Omaha, Ne

Worked part-time from UNMC while pursuing a B.S. in Bioinformatics.Genetic Sequence Analysis Facility (GSAF) provides application and hardware support and development for researchers at the University of Nebraska Medical Center.Collaborative Laboratory of Applied Bioinformatics (CLAB) provides application and hardware support and development for researchers and students across the University of Nebraska system. CLAB is based at the Peter Kiewit Institute (PKI) of the University of Nebraska, Omaha (UNO).In one project I wrote a bunch of Perl, deployed it to UNO's super computer cluster, crunched a ton of data, and that work ended up being useful enough to the scientists that I was listed as a co-author on a scientific paper. Don't ask me to explain the science (my biology / chemistry is weak) but I can try to remember a vague outline of the software I wrote if you're interested: "Loss of Dnmt3b function upregulates the tumor modifier Ment and accelerates mouse lymphomagenesis."

Omaha, Ne

E-commerce portal and invoicing developer for European facilities-based telecommunications provider.

Omaha, Ne

Programmer, database developer, telco analyst for call center operations and consulting firm.

Yankton, Sd

Technical architect for auction-based Internet start-up.

Yankton, Sd

E-commerce developer for computer components wholesaler. Auction systems I developed prompted the transition to "Global Shopping Club".

Bioinformatics

Certified Informix Database Specialist

Mechanical Engineering, Psychology, Philosophy

Activities and Societies: Delta Tau Delta social fraternity