About TAC
TAC is a Layer 1 blockchain with a native adapter for TON, enabling Ethereum-based applications to access Telegram’s user base of over 1 billion people.
Our mission is to scale the TON developer ecosystem by onboarding Solidity/EVM engineers and helping launch hundreds of new dApps for TON users—especially in consumer-facing use cases via Telegram MiniApps.
We’re in a fast growth phase: post-fundraising, with a strong team of crypto natives and former corporate leaders. We're now building a new independent chain based on the Cosmos SDK.
The Role
We’re looking for an experienced Cosmos SDK Developer to help us design and build a new standalone blockchain network based on the modular Cosmos architecture.
Our goal is to develop a liquid staking network with IBC support and cross-chain interoperability.
Responsibilities
- Develop and maintain Cosmos SDK modules in Go
- Configure and launch a full blockchain application (genesis, nodes, consensus)
- Implement cross-chain functionality via IBC and Interchain Accounts
- Build systems for rewards, delegation, and custom distribution logic
- Integrate with external services (relayers, monitoring, governance tooling)
- Maintain CI/CD pipelines and test infrastructure for the node
- Contribute to architecture discussions and perform code reviews
Requirements
- Strong proficiency in Go
- Experience developing and modifying Cosmos SDK modules
- Solid understanding of Cosmos SDK architecture (app.go, keepers, multistore, messages), Tendermint (CometBFT), and IBC
- Hands-on experience launching and configuring custom networks (ideally with IBC)
- Familiarity with Interchain Accounts
- Understanding of the Cosmos ecosystem and DeFi concepts
- Experience deploying and testing smart contracts (a plus)
What We Offer
- Competitive compensation
- Influence the architecture of a new blockchain from the ground up
- Access to key growth opportunities within the TON ecosystem
- Flexible schedule (CET-friendly hours preferred)
