Owned core mobile + backend architecture, advising CEO and founding eng on roadmap feasibility and system tradeoffs
Led dev team on R&D initiative to overcome critical iOS platform constraints, resolving months-long iOS audio failures & restoring key feature stability ahead of investor milestones
Owned end-to-end development of "Weave," a React Native + Swift social feed feature on the Dust app using metro/expo/Testflight for beta testing, and AVfoundations + react native nitro sound library for sound playback
Improved app feed performance by implementing cache; removing errant reloads; load testing Supabase CDN to optimize upload/streaming latency for hundreds of users
Software Engineer
Amazon (Wickr @ AWS)
May 2022 – Jan 2023
New York, NY
Conducted comprehensive macOS and iOS development & client testing using Xcode, attaching debuggers, inspecting logs, and managing multi-environment build configurations to validate encryption, signaling, and media-streaming integrity.
Investigated real-time communication performance by capturing and analyzing UDP/TCP traffic, latency, packet-loss metrics, and codec performance (H.264/Opus), documenting root-cause analyses to inform network stack optimizations.
Automated internal support workflows through C# and Bash scripts integrating with Jira REST APIs, JSON configs, and AWS SDKs, reducing manual triage time.
Represented the Wickr engineering team in cross-functional post-incident reviews, summarizing client-side findings and proposing systemic fixes to backend and infrastructure teams.
Authored detailed developer onboarding and environment-setup documentation spanning macOS, Windows, and Linux toolchains, reducing ramp-up time for new engineers by 40%.
Researcher
Lamont-Doherty Earth Observatory @ Columbia University
May 2019 – March 2020
New York, NY
Analyzed >1 TB of climate-model and observational datasets using Python (NumPy, pandas, xarray) to investigate ocean heat transport and atmospheric circulation patterns.
Visualized multi-dimensional data with matplotlib; identified key spatial correlations between temperature, salinity, and current variability, contributing to publishable findings.
Presented research at the Ocean Sciences Meeting (invited talk), engaging an audience of academic and industry professionals.
Speaking & Publications
CS Jones; S Jiang & RP Abernathey (2024) A Comparison of Diagnostics for AMOC heat transport applied to the CESM large ensemble. Lamont-Doherty Earth Science Institute, Columbia University, Palisades NJ
Jiang, S., Hastings, H. & Negassa, N. (2018, November). Oscillatory Dynamics of Small Arrays of Neural Networks. Poster session presented at the IEEE Undergraduate Research Technology Conference, MIT, Cambridge, MA
Projects
Postforge.me
Nov 2025
AI-powered social media dashboard for Public School 15 NYC; owned entire project as solo contractor
Automated PS15 Principal's social media workflow: emails containing images are processed into AI-generated social media posts using Claude API with prompt templates, filtering, and post-processing.
Enabled PS15 to meet their Instagram posting goal of at least once a week.
FantasyMarket @ Wondrous Dev
Oct 2025
Contributed to a Telegram-based trading bot for Polymarket; scoped & implemented a points system for user rewards+ cashback, with backend logic to process trades and maintain accurate reward balances; supported integration of Polymarket API for trades. Stack: Privy.io, OpenAI SDK, Redis, Axios, Zod, Grammy (telegram,) ethers.js