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Blockchain Developer

Blockchain Box





We are a fast-growing blockchain startup headquartered in San Francisco, California, and we are opening a Belgrade Hub in Q3 2019.

We are guided by our core principles of blockchain innovation, passion and operational excellence. We are an agile team, and we are looking for like-minded teammate — enthusiastic, adaptable, team player, self-motivated, problem solver with get things done attitude.

You will be a part of collaborative and highly skilled team — from SW developers, blockchain experts, pen testers, product managers and business developers dedicated to product design and development of cutting-edge blockchain solutions. If you think you can make a positive impact with your work by solving challenges, this role is for you.


  • Lead the development of cutting edge blockchain applications and platforms
  • Collaboratively identify product requirements, and design architecture with Product, UX and other teams
  • Architect and implement a public or private decentralized blockchain
  • Develop smart contracts with single and multi-signature capabilities
  • Work on digital wallets and cryptocurrencies
  • Write automated tests for APIs
  • Write server side REST APIs for crypto-currency transactions


  • Minimum 5+ years professional experience in software engineering
  • Degree in Computer Science/Engineering/Mathematics or equivalent experience as a developer
  • Experience with Solidity, JavaSript, Node.js, Python
  • OR
  • Experience with Golang or other programming languages Java/Go/C++
  • Knowledge of REST and RESTful APIs
  • Experience with server-side deployments
  • Knowledge of messaging queues, binary protocols and system integration
  • Knowledge of security & privacy best practices, PKI, encryption
  • Knowledge of SQL and NoSQL databases
  • Ability to work effectively, efficiently and independently with minimal oversight
  • Excellent organizational skills and attention to detail
  • Strong communication, collaboration and interpersonal skills
  • Excellent English communication skills and ability to learn fast

What Will Make You Special

  • Knowledge of other blockchains: Quorum/Hyperledger/Stellar/EOS…
  • Active involvement in open source projects as a contributor/maintainer

What We Offer

  • Meaningful, real life business problems to solve
  • Opportunity for growth and making a real difference in the world
  • Mentoring by senior engineers and leadership team
  • Great working environment with excellent salary and benefits

Please email your resume/CV.

Deadline for applications: 05.09.2019.

Job listing has expired.
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