Sr. Blockchain Engineer | Online Jobs | Optimhire

Sr. Blockchain Engineer

A blockchain developer who has around 3+ years of experience, and has past experience with working on blockchain-based systems and scenarios. The ideal candidate would be someone who not only understands the concepts of Blockchain technology, but is very well versed with hands-on experience of building blockchain-based applications in a variety of scenarios. Experience with building on the Ethereum blockchain is a must - best if knowledge or experience is in Quorum
Candidate should have

  • Familiarity with web frameworks
  • Familiarity with common blockchain systems
  • Hands-on experience with setting up blockchain networks from ground up and molding the network to suit specific use cases
  • Solid understanding of enterprise requirements in a blockchain-based system
  • Understanding of security aspects needed in an enterprise-grade platform solution
  • Ability to liaise with partners to understand their feature requests and problems clearly
  • Experience with Solidity, web3.js, Geth.
  • Experience/Familiarity with AWS is a plus.
  • Production readiness, dAPP architecture and Network architecture (at least one production-grade implementation experience)
  • Strong knowledge of writing pieces of code that can handle high volume concurrent requests to the blockchain system
  • Strong familiarity with P2P networks and how things should work in and around enterprise-level blockchain systems
  • Familiarity with basic cryptography to understand the essentials of blockchain systems.
  • Ability to understand the needed API connectivity between standard applications and the front end with the dApps or the blockchain set up at the backend.
  • Experience with Nodejs and basic JavaScript; and a NoSQL db like Mongodb is needed.
  • Past experience with Wallets or Crypto Exchanges would be a major plus.
  • Sense of ownership and pride in your performance and its impact on company’s success
  • Critical thinker and problem-solving skills
  • Should be a team player in its truest sense - being able to push self to larger extents to assist fellow team members where needed
  • It is discouraged to be an ‘individual contributor’. Understanding the problem at hand, and being able to bring the team on the same page is a must-have quality.
  • Good time-management skills
  • Great interpersonal and communication skills 
Job Description
  • Research, design, develop, and test blockchain technologies
  • Brainstorm and help evaluate applications for new tools and technologies as they continually evolve
  • Be constantly updated with what is happening in the blockchain, decentralization, fintech and software world around.
  • Should be able to understand how to handle backups related to blockchain systems and also best strategies to save network and storage-based costs.
  • Should be able to devise novel strategies to solve certain far-fetched problems.
  • Every solution might not be available on stack overflow.
  • Should be able to proactively reach out to partners for seamless integration of services and to gain a clear understanding of feature requests/issues.
  • Should be updated with security requirements of enterprise-grade solutions.
  • Should be active in finding loopholes in the existing solution and suggest better technical process flows to improve the offering.
  • Be able to manage colleagues/team as and when needed.
  • Should be able to assume ownership of external systems and the internal linkages and setup of the platform.
  • Maintain and extend current client- and server-side applications responsible for integration and business logic
  • Be involved in the global blockchain community—work on implementing and integrating the latest improvement proposals
  • Document new solutions as well as maintaining that of existing ones
  • Work in a multidisciplinary team with other professionals such as back-end developers and web designers
  • Make suggestions for better solutions to problems
  • Keep abreast of the latest and emerging technologies
  • Attend training and education where necessary to upskill themselves. 

Job Type


Must have Skills

  • Node.Js - 2 Years


  • AWS - 3 Years


  • Geth - 3 Years


  • BlockChain - 3 Years


  • Ethereum - 3 Years


  • Solidity - 3 Years


  • Quorum - 2 Years


  • Web3.Js - 3 Years



english - Fluent

9 - 14 K/Year USD (Annual salary)

Longterm (Duration)

Partially Remote Mumbai, Maharashtra, India

Abhishek B