Cosmos SDK Developer

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)

While the job posting shows Lisbon as a location for technical reasons, we welcome applications from qualified candidates regardless of their geographic location.

What We Offer

Competitive and fair compensation , aligned with your experience and responsibilities

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)

Why Now

TAC is preparing for

Mainnet launch . We’ve already passed $200M+ in TVL, established major partnerships, and secured infrastructure integrations. With strong support from TON’s core ecosystem players, now is the perfect time to join and leave your mark on a new chain’s evolution.

Seniority level

Mid-Senior level

Employment type

Full-time

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