Work

Brida (Daniel) Esambu

Software engineer. C++ systems, backend, and mobile.

I'm finishing an M.S. in Computer Science at the University of Oklahoma and looking for a full-time software engineering role. This summer I interned on the Silicon One team at Cisco.

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Experience

Software Engineer Intern II

Cisco Systems, Silicon One (embedded and network systems)

Jun to Aug 2026 · Research Triangle Park, NC

  • Built a C++17 single-pass engine on Linux that indexes 284K events and 25K hardware-object lifecycles from a 54.8 MiB network-chip trace in 1.24 s. Cut peak memory 55% (414 to 184 MiB) using mmap, string interning, and page release.
  • Cut lifecycle reconstruction from 1.4 s to 16 ms (86x) by replacing an O(N·K) rescan with an O(N + K log K) index.
  • Fixed an identifier-reuse bug by mapping IDs to birth-ordered vectors and binary-searching byte offsets, so each reference binds to its exact live instance.
  • Delivered the tool end to end (C++17, FastAPI, React, TypeScript) so engineers can isolate and replay a failing object's events. Made workers crash-safe with POSIX locks, atomic writes, and idempotency keys.

Undergraduate Research Fellow

OU Gallogly College of Engineering

Jan to Jul 2025 · Norman, OK

  • Won a $3,000 fellowship. Built an R pipeline over 3,600+ student records using regression, chi-square, Kruskal-Wallis, and Monte Carlo tests to measure how math placement affects retention. Presented at ASEE 2026.

Software Development Intern

Ronnie K. Irani Center for the Creation of Economic Wealth

Jan to May 2025 · Norman, OK

  • Architected a cross-platform Flutter app for an emergency-response startup on a team of 7 interns. Built Firebase auth with email, Google OAuth, and biometric sign-in, and designed the full UI in Figma.

IT Support Technician

OU Information Technology, Learning Spaces

Aug 2023 to May 2026 · Norman, OK

  • Supported 150+ classrooms and 20 labs on a team that raised network uptime 20% and cut ticket resolution time 41%.
  • Started training new technicians on my own. Management made it standard for every incoming cohort.

Projects

Leka

Limit order book and matching engine

C++20, CMake, Linux, sanitizers

  • Replaced std::map with a tick-indexed array + bitset and wrote an open-addressed hash table for O(1) best price and O(1) cancel, cutting per-event latency 2.1x.
  • Built a lock-free SPSC queue and a Nasdaq ITCH 5.0 decoder that replays real sessions. 7 test suites run clean under ASan, UBSan, and TSan.

Fortuna

Personal finance app for iOS and Android

React Native, FastAPI, PostgreSQL, Redis

  • Built a React Native app with real-time WebSocket chat, speech-to-text, biometric auth, and OAuth.
  • Built a FastAPI + PostgreSQL backend (29 tables) with JWT/MFA auth, row-level security, Plaid, and Celery/Redis jobs.

Latency Lab

A C++ systems course

C++20, TypeScript, Next.js, Docker, Judge0

  • Wrote a 13-module C++ course (memory models through lock-free queues) with 3 exams and a sandboxed, self-hosted Judge0 backend for compiling and testing code in the browser.

Serendipity

HackMIT '25, AR for smart glasses

TypeScript, Claude, Google Places API

  • Built a real-time AR app for MentraOS smart glasses using GPS and weather data, with a voice UI made for low connectivity.