Markus Waas

I build the financial core of a decentralized exchange at Injective — six years of spot and derivatives logic in the Cosmos SDK exchange module, most recently its cross-margining system, alongside CosmWasm contracts and Solidity bridges. I write about smart contract development at soliditydeveloper.com, and I've followed blockchain since 2010.

Auckland, New Zealand · mail@markuswaas.com

Years writing software

0+

Years building Injective

0

MSc final grade, CS

0.0

1. Senior DeFi Developer

   Injective Labs

   Jul 2020 — Present

   • Own the financial core of the exchange protocol — the Cosmos SDK exchange module's spot and derivatives logic, written in Go.
   • Helped design and build the protocol's new cross-margining system.
   • Drive security across the module: audits, fixes, and continuous hardening of the exchange logic.
   • Earlier work includes Solidity bridge contracts integrated with The Graph, and CosmWasm contracts.

2. Smart Contract Solidity Developer

   Laminar (Acala)

   Mar — Jul 2020

   Designed and built a leveraged margin trading platform on Ethereum — multiple markets, margin calls, and liquidations — with The Graph integration so the frontend could query state efficiently.

3. Blockchain Engineer

   Juri

   Apr 2019 — Mar 2020

   Implemented a novel staking pool and researched the platform's blockchain integration — most notably, designed a fully decentralized oracle system.

4. Blockchain Engineer & Full-stack Developer

   Starbase

   Jul 2018 — Nov 2019

   On a small Scrum team building a token-based crowdfunding platform: introduced a staking and ranking smart contract for ERC-20 tokens, implemented a secure funds splitter, and improved the token sale contracts.

5. Frontend Developer

   Infopark

   Oct 2014 — Jul 2018

   Built frontend features for a JavaScript CMS in a Scrum team — new value-type editors and an improved React integration that made the CMS more convenient for developers.

6. Engineering Intern

   Crypto Software Chryselius

   Oct 2010 — Oct 2011

   Java and C++ development of a chipcard-based bootloader and file-container encryption on Ubuntu; set up the development environment and administered the backup and build servers.

I run soliditydeveloper.com — practical deep dives on smart contract development, from EVM internals to protocol integrations.

All articles →

Protocol & chain

GoCosmos SDKCosmWasmRust

Smart contracts

SolidityEVMAudits & hardening

Web

JavaScript / TypeScriptReact

Languages

German (native)English (native proficiency)Spanish (elementary)