Kyle Bryant
Builder · Crypto × AI

Senior Blockchain Data Engineer at Fidelity, a director-level engagement. I work where institutional finance meets Ethereum — engineering data infrastructure for on-chain analytics by day, building personal projects with AI-accelerated development and running a home Ethereum validator by night.

Based
Greater Boston
Currently
Fidelity Investments
Github
@Kyrrui
LinkedIn
@kyle-c-bryant
01 /section

Currently Building

My most active repos over the last 30 days — pulled live from GitHub daily

refreshed just now
Commits per day · last 30 days
451 total
0765Apr 23May 8May 22

QuinfallCrafting.com

Live

Creator & Maintainer · 2026–Present

Live, revenue-generating companion tool for The Quinfall MMO. Sole engineer, designer, and operator. ~2,600 MAU across 70+ countries, fully localized into 13 languages.

Next.js 15React 19TypeScriptPostgreSQLDrizzle ORMZustandStripeDiscord OAuth2ResendNetlify Edge
deep dive →168 commits / mo

KinQuilt.com

Live

Solo Engineer · 2026–Present

Genealogy research workspace — a Vite + React + TypeScript SPA paired with a Chrome MV3 extension that aggregates a person's records across FamilySearch, WikiTree, FindAGrave, Ancestry, and Chronicling America into a single triage view, then drafts a cited biography with an LLM.

React 19TypeScriptViteTailwindZustandChrome MV3OpenRouterNetlify
deep dive →132 commits / mo

KyleBryant.dev

Live

Creator · 2026–Present

This site. Built collaboratively with Claude Code as a pair-programming partner — every section reads from a single data file. Next.js 16 static export, deployed continuously to Netlify.

Next.js 16React 19TypeScriptTailwind v4MotionNetlifySharpClaude Code
deep dive →94 commits / mo

Testamentum Discord Bot

GitHub

Creator & Maintainer · 2026–Present

Serves a Discord church community of over 100 members with the 4,300-verse Marcionite Testamentum. 20+ slash commands, daily AI-generated content, and an interactive multiplayer scripture quiz.

Pythondiscord.pyPillow (PIL)OpenRouter APIBeautifulSoupGitHub ActionsRailway
deep dive →57 commits / mo
02 /section

Hackathons

A few weekends I'm proud of. Real teams, tight deadlines, deployed contracts.

4 events
Fidelity Hackathon
Boston, MA · July 2025
1st Place
Traderoute Multi-Dex

A 2-day, 3-person build benchmarking live on-chain ERC-20 router quotes against Fidelity's internal pricing.

1st PlaceView details
ETHDenver
Denver, CO · February 2019
Winner
Universal Wallet

An Ethereum browser wallet with a cutting-edge UX — judged the most complete end-to-end product.

Spirit of Build AwardView details
ETHBerlin
Berlin, DE · September 2018
Winner
AllAboard.xyz

Best-UX winner — an early take on Universal Login and meta-transactions.

Best UXView details
ETHBuenosAires
Buenos Aires, AR · May 2018
1st Place
CryptoAgainstHumanity.io

Overall winner — on-chain Cards Against Humanity built on token-curated registries and bonding curves.

Overall WinnerView details
03 /section

Work History

Where I've spent my full-time hours.

  1. Senior Blockchain Data Engineer (Contract) @ Fidelity Investments

    Dec 2024 — Present · Boston, MA

    A director-level contract engagement — architecting and operating the on-chain data platform behind Fidelity's institutional Ethereum analytics, where traditional finance meets decentralized systems.

    • Build and operate on-chain data platforms powering institutional analytics on Ethereum.
    • Bridge institutional infrastructure with decentralized data sources at production scale.
    EthereumOn-chain AnalyticsData EngineeringAWS
  2. Lead Backend / Smart Contract Engineer @ Brink

    May 2021 — Dec 2024 · Boston, MA

    Owned backend, SDK, and execution infrastructure for multiple decentralized applications — pioneering intent-based interactions across Ethereum and its Layer 2s.

    • Deployed and maintained production smart contracts on Ethereum Mainnet securing $10k+ TVL.
    • Pioneered intent-based applications enabling complex signature-based interactions across Ethereum and multiple Layer 2s.
    • Built the customer-facing SDKs and the executor infrastructure that fulfilled user intents end to end.
    SolidityHardhatTypeScriptReactAWSDigitalOceanPostgreSQL
  3. Lead Integrations Engineer @ Reggora

    Nov 2019 — May 2021 · Boston, MA

    Led a 5-engineer team and owned technical integrations across Reggora's platform.

    • Designed and shipped an event-sourcing architecture — consumer nodes, SQS, SNS, event forks, DynamoDB — that let Reggora scale horizontally and survive a mission-critical database failure.
    • Delivered features end to end across the stack with React, Flask, and MongoDB.
    ReactFlaskMongoDBDynamoDBSQSSNS
  4. Lead Smart Contract Engineer @ Skedaddle

    Aug 2018 — Sep 2019 · Boston, MA

    Architected Boomerang end to end on the Universal Login Standard (EIP-1077 / EIP-1078) — a then-novel approach to Web3 UX.

    • Made significant open-source contributions to the UniversalLoginSDK.
    • Represented the project at Devcon 4, the Status Cryptolife Hackathon, and ETHBerlin.
    EthereumSolidityReactIPFSAWSEIP-1077EIP-1078
  5. Senior Software Engineer @ Hitachi Vantara

    Jan 2017 — Aug 2018 · Waltham, MA

    Modernized internal build tooling and shaped the high-level design of Hitachi Vantara's ETL platform.

    • Migrated internal projects from Ant to Maven.
    • Designed worker nodes that horizontally scale Hitachi Vantara's extract-transform-load engine.
    JavaMavenETL
  6. Software Development Engineer @ Amazon Robotics

    May 2015 — Jan 2017 · Westborough, MA

    Built large-scale cloud data solutions and cross-database validation tooling for the Enterprise Data Warehouse team.

    • Constructed scalable cloud data infrastructure on DynamoDB, Redshift, and S3.
    • Developed web tools that validated data integrity across multiple cloud databases.
    DynamoDBRedshiftS3AWS
04 /section

Education

Where the foundations got built.

Worcester Polytechnic Institute

2011 — 2015

B.S. Interactive Media and Game Development · Minor in Computer Science

Notable projects

The Urban WhaleSenior MQP · Best Video Game Project

An Unreal Engine 4 game teaching players about the critically endangered North Atlantic right whale and the efforts to prevent its extinction. I built the fish-schooling AI steering behaviors in C++, plus the player-diver movement and environment interactions.

Unreal Engine 4C++C#MayaZBrush3ds Max
Transformative Spells (Skyrim Mod)2,000+ subscribers · 5,000+ downloads

A free modification for The Elder Scrolls V: Skyrim that lets players purchase in-game shapeshifting spells. Built in the Creation Kit with Papyrus scripting and published on Nexus Mods.

Creation KitPapyrusNexus Mods
05 /section

Stack

What I reach for. Roughly grouped — strong opinions, loosely held.

01

Languages

  • TypeScript
  • JavaScript
  • Solidity
  • Python
  • Java
  • C++
  • C#
  • SQL
02

Blockchain

  • Ethereum
  • Layer 2s
  • Smart Contracts
  • Account Abstraction
  • Intent-Based Apps
  • EIP-1077
  • EIP-1078
  • EIP-712
  • Universal Login
  • Meta Transactions
  • CREATE2
  • DeFi
  • IPFS
  • Validator Operations
  • MEV-Boost
  • Beacon Chain
03

Backend

  • Node.js
  • Flask
  • REST APIs
  • GraphQL
  • Event Sourcing
  • Distributed Systems
  • SDK Design
  • Discord.js
  • Stripe
  • Resend
04

Frontend

  • React
  • Next.js
  • Tailwind CSS
  • Motion
  • Zustand
  • ethers.js
05

Data

  • On-chain Analytics
  • Data Engineering
  • ETL
  • PostgreSQL
  • Drizzle ORM
  • Redshift
  • S3
  • MongoDB
  • DynamoDB
06

Infra

  • AWS
  • Netlify
  • Railway
  • DigitalOcean
  • Docker
  • GitHub Actions
  • CI/CD
  • SQS
  • SNS
07

AI / Tooling

  • Claude Code
  • Anthropic SDK
  • AI-Accelerated Dev
  • Hardhat
  • Vitest
  • Git
TypeScript JavaScript Solidity Python Java C++ C# SQL Ethereum Layer 2s Smart Contracts Account Abstraction Intent-Based Apps EIP-1077 EIP-1078 EIP-712 Universal Login Meta Transactions CREATE2 DeFi IPFS Validator Operations MEV-Boost Beacon Chain Node.js Flask REST APIs GraphQL Event Sourcing Distributed Systems SDK Design Discord.js Stripe Resend React Next.js Tailwind CSS Motion Zustand ethers.js On-chain Analytics Data Engineering ETL PostgreSQL Drizzle ORM Redshift S3 MongoDB DynamoDB AWS Netlify Railway DigitalOcean Docker GitHub Actions CI/CD SQS SNS Claude Code Anthropic SDK AI-Accelerated Dev Hardhat Vitest Git TypeScript JavaScript Solidity Python Java C++ C# SQL Ethereum Layer 2s Smart Contracts Account Abstraction Intent-Based Apps EIP-1077 EIP-1078 EIP-712 Universal Login Meta Transactions CREATE2 DeFi IPFS Validator Operations MEV-Boost Beacon Chain Node.js Flask REST APIs GraphQL Event Sourcing Distributed Systems SDK Design Discord.js Stripe Resend React Next.js Tailwind CSS Motion Zustand ethers.js On-chain Analytics Data Engineering ETL PostgreSQL Drizzle ORM Redshift S3 MongoDB DynamoDB AWS Netlify Railway DigitalOcean Docker GitHub Actions CI/CD SQS SNS Claude Code Anthropic SDK AI-Accelerated Dev Hardhat Vitest Git
06 /section

Get in touch

Mostly I build — shipping production software fast with AI-accelerated development. If you're working on something real, on-chain or otherwise, let's talk.

Send a message
Best

Honestly your best shot at a reply — a message from here tells me you've actually been through my work, so these jump straight to the front of my inbox.

LinkedIn
in/kyle-c-bryant

Or reach me directly on LinkedIn.