Lance Sigersmith

I'm a Software Engineer at Stanley Black & Decker focused on mobile development, building Android applications for IoT and connected tool ecosystems. I hold a B.S. in Computer Science from UConn and an M.S. in Computer Science from Quinnipiac University (GPA 4.0). I also contribute to open source, most recently to the Scribe language-learning keyboard project.

Software Engineer I — Stanley Black & Decker

May 2026 – Present · New Britain, CT

• Developed an Android application featuring BLE scanning and real-time data collection from Bluetooth devices.
• Integrated existing API with Android application to enable cloud data ingestion and authentication.
• Rapidly acquired Android and Kotlin proficiency by leveraging Cursor AI to accelerate development and ship production-ready features within 6 months.

Software Engineering Intern — Stanley Black & Decker

June 2025 – May 2026 · New Britain, CT

• Evaluated AWS Greengrass Nucleus Lite for integration with existing IoT infrastructure and as a replacement for legacy components.
• Developed and deployed Greengrass components written in C, including components with MQTT messaging, OTA A/B updates, and remote SSH capability.
• Assisted with converting legacy MySQL queries into PostgreSQL-compatible equivalents, resolving schema mismatches and updating prepared statements.

Open Source Contributor — Scribe (scribe-org)

March 2026 – Present

• Implemented a colon-triggered emoji autocomplete feature for the Scribe-Android custom keyboard (Kotlin/IME API), adding prefix-matched emoji suggestions via SQLite lookup with adaptive slot counts for phone and tablet.
• Traced missing emoji keyword data end-to-end across three repositories (Scribe-Android, Scribe-Data, Scribe-Server), identifying a missing PyICU dependency and a broken table name lookup in the Go/Gin API server.
• Contributed across the full language data pipeline from Unicode CLDR ingestion and SQLite generation through REST API to Android keyboard, with concurrent setup of Android Studio, Python, and Go toolchains.

Rotunda — TypeScript / Kotlin / Android

A political intelligence platform ingesting data from 8+ federal government APIs (Congress.gov, CourtListener, Federal Register, roll call feeds) via a fault-tolerant Node.js pipeline, deployed on Raspberry Pi with PostgreSQL and Redis. Indexes 20,000+ bills and 500+ congressional members across two terms. Includes a native Android client built with Kotlin and Jetpack Compose that consumes the backend REST API with real-time updates.

Two-Factor Lock — C / Embedded Systems

An embedded security system final project implementing two-factor authentication on constrained hardware, written in C.

Multiplayer Networked Trivia Game — Java

A full client–server trivia game written in Java using both TCP and UDP. The server maintains global game state, manages multiple concurrent players via handler threads, and broadcasts updates. The client provides a Swing‑based GUI and communicates using a custom message protocol.

Shape Drawing GUI — C++ / Allegro

A graphical drawing tool built using the Allegro framework featuring draggable shapes, text rendering, event‑driven input handling, and an object‑oriented rendering pipeline.

Distributed File Synchronization System — Java

A Java client–server system enabling multi‑client file synchronization. A centralized server tracks metadata and distributes updates, while clients maintain mirrored folders using TCP messaging, concurrency control, and file‑state reconciliation.

Magic Mirror HealthKit Integration — Node.js / JavaScript

A MagicMirror² module displaying activity, health, and movement data. Features a modular architecture with a UI module and a Node.js backend helper. Uses configuration‑driven behavior and clear event‑based messaging within the MagicMirror runtime.

Ecosystem Life Simulator — C++

A C++ simulation of an evolving ecosystem built on an inheritance‑based class hierarchy. Models movement, predators, feeding, reproduction, and emergent environmental behavior.

Company Database Manager — Python + SQL

A Python CLI application interacting with a relational database. Supports full CRUD workflows, schema‑aware validation, and table‑relationship management.

Polygon Data Structure — C++

A geometric data structure that supports bounding‑box computation, point‑in‑polygon testing, and polygon intersection logic using algorithmic computational geometry.

Languages

Mobile

Cloud

Systems & Protocols

Tools