Core Blockchain Engineer

  • OTC Exchange Network
  • San Francisco, CA, USA
  • Mar 24, 2018
Permanent Software Architect | Blockchain Cryptography | Blockchain

Job Description

If you have a strong passion for blockchain and cryptocurrencies, as well as a desire to do something that has never been done before but still solves specific problems in the largest markets in the world and delivers real product with a real revenue model, we want to hear from you.


Required Qualifications 

  • At least 5 years of hands-on experience in core Java and/or C++ (Java as priority but ideally both)
  • Hands-on experience with developing on at least one backend blockchain codebase, whether proprietary (e.g., Chain) or open source (e.g., Hyperledger) -- not just building apps on top
  • Strong understanding of the cryptographic principles and data dependencies underpinning blockchain technologies
  • Experience and understanding of major consensus protocols, asymmetric encryption, Merkle trees, hash functions, key-value database, P2P communication protocols
  • Experience and understanding of transaction scripting and smart contracts, especially Bitcoin style conditionalized transactions 
  • Understanding of key areas of Blockchain research including data privacy, confidential transactions, side chains and pegging, sharding and other scaling methodologies
  • Strong sense of ownership, passion to build quality products for massive scale in collaborative, agile environment and excitement to learn


Preferred Additional Qualifications 

  • A degree in Computer Science / Mathematics or equivalent work experience in a field utilizing the same subject matter
  • 5+ years of development experience developing production grade, multi-threaded, enterprise client/server software using Java stack.
  • Experience contributing to the architecture, design, and implementation of Blockchain technologies like Chain, Corda and Hyperledger
  • Understanding of microservices architecture
  • Recognized expertise in blockchain applications as evidenced by industry participation, publications and/or awards
  • Detailed and verifiable understanding of blockchain architectures including detailed knowledge of how various blockchain platforms differ.
  • Experience with consensus protocols in commonly used languages such as C, C++, Java
  • Experience in building distributed databases, networking protocols, or large-scale transaction systems
  • Experience developing large scale, highly available distributed systems and protocol design
  • Strong knowledge of data structures, algorithms, operating systems, and distributed systems fundamentals.
  • Strong understanding of databases, NoSQL systems, storage and distributed persistence technologies.
  • Experience with some of the following:  Concurrency and synchronization, Common IPC/RPC methods and patterns, Queuing patterns and pipeline design, Messaging systems and patterns, Virtual memory management



What you’ll be doing


  • Work closely with company leadership to define roadmap and extend an existing custom blockchain implementation in Java
  • Write high caliber code on a daily basis to satisfy time sensitive production product development as well as R&D projects
  • Collaborate with CTO, blockchain engineers and math wizards and undertake R&D projects to create novel hybrid solutions to solve problems while maintaining extreme performance requirements without trading off guarantees blockchain provides
  • Help develop blockchain product specs
  • Collaboratively define blockchain systems architecture and best practices
  • Document best practices and act as a knowledgeable resource for blockchain engineering and problem-solving.


Bonus Points For:

  • Sense of humor
  • Published Blockchain-related research
  • Published cryptography research
  • Experience or genuine interest in trading and exchanges
  • Experience in P2P networking
  • A Master’s in Computer Science / Mathematics or equivalent work experience in a field utilizing the same


What You Get:


  • The excitement and fulfillment of solving the biggest problems in the largest markets for top global clients using real blockchain technology
  • Very competitive salary and equity in a well-funded and high growth startup backed by prominent investors
  • Substantial career opportunities and upside to match your passion for what we do
  • 401K
  • Excellent medical, dental and vision insurance coverage
  • Unlimited vacation time
  • SF preferred, remote considered for exceptional candidates only


Why Join OTCXN:

You will be working with a team that will have a profound impact at the crossroads of blockchain and capital markets infrastructure. Building world-class disruptive technologies requires vision, persistence, innovation, and a deep belief that nothing is impossible. We are looking for smart people who are not risk adverse and want to build something that will be universally recognized as a world first. We aspire to provide a working environment, culture and leadership team that foster continuous improvement on a daily basis, offering transparency, ownership and integrity.  Join our proven and successful management team in executing one of the most ambitious global projects in the blockchain space.



Pay Rate

$150,000 to $350,000