Job: Principal Blockchain Engineer Location: Boston, MA , Jersey City, NJ or Merrimack, NH – 2 weeks Onsite per Month Long Term contract Must have skills: • This team does Backend only work • AWS cloud – for application development • Cloud native form of development • This person needs to be Senior/ Principal level with enterprise Java / Spring/ Spring boot/ REST APIs. • Hands on experience working on more or more blockchains • Bitcoin, ETH, understand Cryptography Candidate Profile: • Enterprise Java • REST API • Spring / Spring Boot • Cloud Native – in terms of working on AWS – SQS Postgres, Dynamo DB, • Blockchain – integrating or working with public block chain • ETH, Bitcoin, wallet experience • Self-Motivated – self-starter, problem solving with minimal oversight – investigate, troubleshoot, dig • Work in a team setting- collaborate, work with the team The Expertise and Skills You Bring • Batchelor's degree in computer science or related field required • 8+ years' experience in software development using object-oriented programming languages like Java • Experience with blockchains such as Ethereum, Bitcoin • Experience building resilient services in Java • Proficient in databases and SQL • An understanding of microservice architecture and twelve factor app patterns • Ability to build reliable software that can withstand unreliable environments • Unit and integration test automation using JUnit • Experience building and deploying applications using continuous integration pipelines and automated deployment tools such as Jenkins Core • Possess critical thinking skills to build end-to-end solutions • Passionate and committed to learning new things and developing with the latest technologies and frameworks