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Cosmos Sdk Jobs (NOW HIRING)

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Protocol Engineer

Iselin, NJ · On-site +1

$70 - $80/hr

Deep experience with Cosmos SDK and CometBFT. Comfort building custom modules and modifying consensus logic, not just deploying smart contracts Pedersen Commitments (Homomorphic encryption properties ...

Cosmos Labs

General application

New York, NY · On-site +1

The Cosmos SDK and IBC protocol are the foundation for chains managing tens of billions in value. We are now applying this stack to bank tokenized deposits - the most significant shift in banking ...

ZetaChain

Senior Platform Engineer

San Francisco, CA · On-site

$190K - $225K/yr

Cosmos SDK, Tendermint / CometBFT, Ethereum, Bitcoin Why Join Us * Build and operate infrastructure for cutting-edge AI and blockchain systems * Make architectural decisions that impact reliability ...

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How much do cosmos sdk jobs pay per hour?

As of Jul 2, 2026, the average hourly pay for cosmos sdk in the United States is $55.19, according to ZipRecruiter salary data. Most workers in this role earn between $45.67 and $54.57 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Cosmos SDK Developer, and why are they important?

To thrive as a Cosmos SDK Developer, you need strong programming skills in Go, a solid understanding of blockchain fundamentals, and experience with distributed systems. Familiarity with the Cosmos SDK framework, Tendermint Core, and related tools like Starport is typically required, as well as knowledge of APIs and smart contract integration. Problem-solving abilities, attention to detail, and effective communication are crucial soft skills for collaborating in open-source and cross-functional teams. These skills and qualities are essential for building secure, scalable blockchain applications and contributing effectively to the evolving Cosmos ecosystem.

What are some common challenges faced by developers working with the Cosmos SDK, and how can they be managed?

Developers working with the Cosmos SDK often encounter challenges related to understanding its modular architecture and handling inter-blockchain communication (IBC). Navigating the learning curve for Tendermint consensus and customizing application-specific blockchains can also be demanding, especially for those new to blockchain development. To manage these challenges, it's helpful to actively engage with the Cosmos developer community, utilize comprehensive documentation, and experiment with sample modules. Collaboration with team members who have prior experience with the SDK can also accelerate problem-solving and skill development.

What is the difference between Cosmos Sdk vs Blockchain Developer?

AspectCosmos SdkBlockchain Developer
CredentialsKnowledge of Go, blockchain concepts, and Cosmos SDKProgramming skills (e.g., Solidity, JavaScript), blockchain fundamentals
Work EnvironmentDeveloping blockchain modules within Cosmos ecosystemBuilding, testing, and deploying blockchain applications
Industry UsageUsed by blockchain projects leveraging Cosmos SDKEmployed across various blockchain platforms and projects

Cosmos Sdk is a framework for building blockchain applications within the Cosmos ecosystem, focusing on modular development. Blockchain Developers create decentralized applications and smart contracts across multiple platforms. While Cosmos Sdk developers specialize in building blockchain modules using specific tools like Go, Blockchain Developers have broader skills applicable to various blockchain environments. Both roles require blockchain knowledge but differ in scope and technical focus.

What is Cosmos SDK?

Cosmos SDK is an open-source framework for building custom, secure, and scalable blockchain applications on top of the Cosmos Network. It provides developers with the tools and libraries necessary to build blockchains in the Go programming language, enabling modular development through reusable components called modules. The Cosmos SDK is widely used for creating interoperable blockchains, allowing them to connect and communicate via the Cosmos Inter-Blockchain Communication (IBC) protocol.
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Cosmos Sdk jobs near you
Infographic showing various Cosmos Sdk job openings in the United States as of June 2026, with employment types broken down into 95% Full Time, 1% Part Time, and 4% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $114,797 per year, or $55.2 per hour.

Hiring: Lead Protocol Engineer at Iselin, NJ

Realtech Services

Iselin, NJ • On-site

$104K - $137K/yr

Contractor

Posted 6 days ago

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Job description


Job Title :  Lead Protocol Engineer

Location : Iselin, NJ (3 days hybrid work)

Duration: 12+ Months Assignment

Job Description:

Responsibilities

Core Protocol Development: Architect and build a custom blockchain application using Go, Cosmos SDK, and CometBFT (Tendermint)

Cryptographic Implementation: Implement and optimize privacy-preserving primitives, specifically Pedersen Commitments and Bulletproofs (Range Proofs), ensuring no trusted setup is required

Consensus Customization: Engineer custom ABCI++ extensions (specifically PrepareProposal and Vote Extensions) to implement an on-chain Multi-Party Computation (MPC) mixing network

State Machine Design: Design a custom KVStore state machine that manages homomorphic encrypted balances (Elliptic Curve points) instead of plaintext integers

Performance Engineering: Optimize cryptographic operations (scalar multiplication, point addition) for low latency and high throughput in a distributed environment

Auditing Infrastructure: Build secure off-chain query layers and "view key" mechanisms that allow for granular, permissioned regulatory auditing

Required Qualifications:

5+ years of Specialty Software Engineering experience, or equivalent demonstrated through one or a combination of the following: work experience, training, military experience, education

3+ years of experience in backend or systems programming, with expert-level proficiency in Go (Golang)

6+ months of experience with Elliptic Curve Cryptography (ECC)

1+ year of experience with BFT consensus algorithms, P2P networking, and state replication; reliable, distributed systems experience

Desired Qualifications:

Blockchain Core: Deep experience with Cosmos SDK and CometBFT. Comfort building custom modules and modifying consensus logic, not just deploying smart contracts

Pedersen Commitments (Homomorphic encryption properties)

Zero-Knowledge Proofs (specifically Bulletproofs or Sigma protocols)

Math-to-Code: Demonstrated ability to read academic whitepapers/preprints and translate mathematical specifications into functioning code

Experience with MPC (Multi-Party Computation) or Verifiable Secret Sharing (VSS) schemes

Familiarity with the Ristretto255 curve or libraries like gnark-crypto

Background in FinTech, payment systems, or high-frequency trading platforms

Understanding of the Account Model vs. UTXO Model trade-offs in privacy-preserving ledgers