Skip to content
View TheFrozenFire's full-sized avatar


  • Pro


Block or Report

Block or report TheFrozenFire

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Please don't include any personal information such as legal names or email addresses. Maximum 100 characters, markdown supported. This note will be visible to only you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
layout title
Justin Martin

Justin Martin

Principal Engineer in Telecom, Applied Cryptographer | frozenfire.eth


Doing applied zero knowledge application development, currently focused on client-side-friendly ZK proofs for on-chain KYC/AML. My research focus is in how one builds user-facing zero knowledge protocols which use simple cryptographic primitives, have minimal verification costs, clear trust assumptions, and which are relatively simple to audit. I am particularly focused on creating ZK protocols which interoperate with real world concerns such as legal reputation, regulatory compliance, and real world identity.

Specialized in

  • Telecom systems engineering (SMS, VOIP, SMPP, SIP)
  • Security engineering (Cryptography, threat mitigation, compliance)
  • Network engineering (Cloud provisioning, K8S clustering)
  • Operational intelligence, data science

Research interests

  • Zero Knowledge cryptography
  • Sybil resistance
  • Cryptoeconomics
  • Privacy
  • Adversarial Interoperability
  • Due Process by Design


2019 Blockchain network communication management, US20210243036A1


2022 - Present Keyring Network

  • Developed the ZK privacy protocol for on-chain KYC/AML from the ground up
  • Developed a number of ZK cryptographic primitives in Circom and Typescript
  • Developed a ZK circuit development toolchain in Typescript
  • Developed an OrbitDB-based decentralized protocol messaging layer
  • Support and guidance around privacy, security, decentralization, trust minimization

2022 - 2023

  • Provided guidance and support for reducing trust assumptions, increasing privacy, decentralizing, and improving performance
  • Developed Chauffeur, a local infrastructure stack for ENS resolution and serving

2021 - August 2022 Ethereum Foundation - PSE Team

  • Developed a ZK system for proving knowledge of JWTs issued by social identity providers
  • Produced open source ZK cryptographic primitives
  • Provided community education and support for ZK tooling, mixers, and other privacy/crypto projects
  • Talent scouting, routing prospects toward ESP projects
  • Grants coordination, bootstrapping
  • Bootstrapped product management processes for bringing grant projects toward production
  • Infrastructure support for compiling large ZK circuits

2013 - 2021 CallFire / EzTexting

  • Started as a vendor for SMS connectivity through SMSCloud
  • Professional Services work for enterprise customers, developing custom call scheduling, routing, and reporting solutions
  • Developed CallFire's PHP SDK
  • Refactored majority of message processing, routing, and origination software for EzTexting
  • Acted as Platform Architect, DevOps Engineer, Security Engineer
  • Produced a "Cloud Caller" provisioning automation system which enabled 20X increase in outbound capacity
  • Oversaw migration to automated cloud provisioning tooling, automated monitoring system
  • Developed Operational Intelligence platform producing reporting, monitoring, and analysis for infrastructure and telephony operations
  • Acted as Principal Engineer in Operations, overseeing infrastructure management, security, carrier operations
  • Developed an automated, heuristic-and-machine-learning-based messaging compliance system, enforcing industry content regulations
  • Developed anti-spam, anti-fraud threat modelling engine
  • Acted as Principal Engineer in Growth, bootstrapping a Growth team effectively utilizing A/B testing to massively decrease churn, increase conversion and ARPU

2013 - 2019 Roave

  • Developed and managed SMSCloud, a high-throughput SMSC connecting businesses to telephony carrier networks
  • Oversaw operations of software development agency business (contract negotiations, recruitment, etc)

2012 MediaDevils

  • Ecommerce sweatshop
  • Built numerous custom ecommerce websites for "As Seen on TV" products
  • Built custom membership video streaming platforms
  • Built specialized social network / online learning platforms


2008 - 2016 PHP

  • Credited documentation maintainer
  • Voting project member
  • Community management (IRC, reddit, etc)
  • Founded PHP Mentoring
  • Contributed to Zend Framework

Popular repositories Loading

  1. PHP-NBT-Decoder-Encoder PHP-NBT-Decoder-Encoder Public

    A PHP-based decoder and encoder for the Minecraft NBT format

    PHP 48 15

  2. PHP-Mindbody-API-Library PHP-Mindbody-API-Library Public

    A PHP-based library for interfacing with Mindbody's SOAP API

    PHP 44 28

  3. PHP-Swagger-Parser PHP-Swagger-Parser Public

    Swagger parser for PHP

    PHP 28 16

  4. snark-jwt-verify snark-jwt-verify Public

    Verify JWTs using SNARK circuits

    JavaScript 26 3

  5. dune-analytics dune-analytics Public

    An interface for querying Dune Analytics in Python

    Python 16 5

  6. Javascript-NBT-Decoder Javascript-NBT-Decoder Public

    A Javascript-based decoder for the Minecraft NBT format

    JavaScript 13 3