Open to new roles: embedded, backend, full-stack

Logan
Sinclair.

Software engineer building resilient systems, from a payroll engine that touches every paycheck to a real-time quiz platform with 100K+ monthly players.

Computer Engineer EIT Oklahoma City U.S. Citizen Clearance-Eligible
IAmLoganSinclair@Gmail.com → LinkedIn GitHub Resume (PDF)
01 Selected Work

Things I've built.

Founder · Solo build 2018 → Present

BuzzIn.Live

Real-time multiplayer quiz platform built from scratch and run since 2018. A multi-user game system for quick "quiz-bowl" style games, full-stack on a VPS: Node.js backend, NGINX proxy, Socket.IO communication. Ran on a freemium model for several years before being converted to fully free in July 2025.

100K+ Monthly players
2018 Running since
1 Person team
Node.js Socket.IO NGINX VPS Free to Play
Visit buzzin.live →
Paycom · Software Developer IV 2023 → Now

Payroll Engine Modernization

Multi-year team effort porting the central Visual FoxPro payroll engine to .NET 10 with zero downtime. Designed point-in-time snapshotting to eliminate drift between parallel engine runs, and extended the CI/CD pipeline to spin up isolated test environments per change.

C# / .NET 10 Docker Kubernetes GitLab CI FoxPro
OU ARRC · Undergraduate Assistant 2021 → 2022

Radar Control & Telemetry

Built a PyQt utility for radar directional control and coordinate visualization, plus a LabVIEW application polling chiller telemetry over Modbus in real time.

Python PyQt LabVIEW Modbus
University · Embedded 2022 → 2023

MBED Guitar Hero

A complete "Guitar Hero" rhythm game built on the MBED LPC1769 — bare-metal C, no RTOS. Real-time audio synthesis driven by hardware timers and PLLs, input handled from a custom-rewired guitar controller, and game state and UI rendered on a 4-line LCD. Coursework, but the starting point for a lasting interest in embedded systems and firmware-adjacent work.

MBED LPC1769 Bare-Metal C PLL Hardware Timers
Watch the MBED Guitar Hero demo →
University · Capstone Spring 2023

Death Star Orb Warehouse Scanner

A capstone project for a battery warehouse client, intentionally unconventional in form: a staff-mounted scanning "orb" the operator carries through the aisles. Raspberry Pi 4 brain, UPS-backed power for shift-long uptime, an I2C 2D barcode scanner, and audio feedback through an onboard amplifier and speaker. Designed end-to-end as a team effort: hardware integration, power management, and the operator-facing audio cues.

Raspberry Pi 4 I2C UPS Power Audio Feedback
University · Senior Project Spring 2023

Non-Visual VR Navigation

A haptic-only VR navigation experiment exploring whether spatial awareness can be conveyed without any visual channel. Distance-based pulse modulation translated proximity into vibration patterns, followed by user trials comparing different haptic feedback styles. The data side was as much of the project as the build: trial results were collected and analyzed to see which patterns actually let users navigate confidently in the dark.

VR Haptic Feedback HMI User Trials Pulse Modulation
Big M Construction · Client 2018

Static Site & Hiring Portal

Custom-built marketing site for an oil and gas pipeline construction company. Node.js, NGINX, no framework. Later extended with an internal employment application system where applicants could submit and staff could review submissions in a dashboard.

Node.js NGINX Vanilla JS
02 Experience

Where I've worked.

2023 → Present

Software Developer IV

Paycom · Oklahoma City, OK

Promoted from L3 to L4 in August 2024. Maintain and enhance the central payroll calculation engine used by nearly every payroll process. Contributed to the multi-year team port of the legacy Visual FoxPro engine to .NET 10 with zero operational downtime, designed point-in-time data snapshotting tools for deterministic calculation recreations, and extended CI/CD pipelines to automatically build, containerize, and deploy isolated testing environments per engine change, with integrated AI code review utilizing Paycom's in-house AI inferencing service.

Summer 2022

Software Developer Intern

Paycom · Oklahoma City, OK

Developed a KPI tracking and visualization application during the summer internship that led to a full-time return offer.

2021 → 2022

Undergraduate Assistant

OU Advanced Radar Research Center · Norman, OK

Developed PyQt-based graphical utilities for radar directional control, plus a LabVIEW monitoring utility for real-time radar chiller telemetry over Modbus.

2018 → Present

Founder

BuzzIn.Live · Online

Designed and implemented a real-time multiplayer quiz platform with over 100,000 monthly players worldwide. Full-stack solo build on a VPS: Node.js backend, NGINX proxy, Socket.IO communication. Ran on a freemium model for several years before being converted to fully free in July 2025.

2018

Full-Stack Webmaster

Big M Construction · Weatherford, OK

Built a custom marketing site for an oil and gas pipeline construction company. Collaborated directly with the client on the design, then extended the site with an internal employment application system for applicant submission and staff review.

Summers 2019 → 2021

Farm & Electrical Work

Sinclair Family Businesses · Eagle City, OK

Two threads of summer work. At Sinclair Farms, operated heavy machinery (tractors, combines, sprayers), maintained and repaired equipment, and cared for livestock. At Sinclair Electric, assisted a master electrician on residential service calls and new construction wiring.

03 Background

Education & honors.

Education

B.S. Computer Engineering

University of Oklahoma · Gallogly College of Engineering · May 2023

Norman, OK. Coursework spanning Microprocessor System Design, Digital Design, Computer Architecture, and Signals & Systems: the foundation behind the MBED guitar, looping 7-segment display, and barcode scanner projects.

Awards & Honors
  • Engineer Intern (EI), Oklahoma Passed the NCEES Fundamentals of Engineering exam in January 2026, then licensed as an Engineer Intern (EI) by the Oklahoma State Board of Licensure for Professional Engineers in February 2026. First step toward Professional Engineer (PE) licensure.
  • Graduated with Special Distinction University of Oklahoma's institutional honor at graduation, May 2023. 3.95 cumulative GPA from the Gallogly College of Engineering.
  • Eagle Scout & Order of the Arrow Boy Scouts of America. Led an Eagle project restoring local public trail signage; inducted into the Order of the Arrow, the BSA's national honor society.
04 About

A bit more.

The short version

Computer engineering grad from the University of Oklahoma. Currently a Level IV software developer at Paycom, working on the calculation engine that runs payroll for the company's entire client base. On the side, BuzzIn.Live — a multiplayer quiz platform maintained since 2018.

What I'm looking for

Embedded roles are the top interest; backend and full-stack are a strong parallel track, with openness to AI-adjacent infrastructure work where it overlaps. Looking at OKC, in-office or hybrid. U.S. citizen, eligible for security clearance.

05 Get in touch

Let's talk.

IAmLoganSinclair@Gmail.com → LinkedIn GitHub Resume (PDF)