Please find the position details below: Job Title: Principal BLOCKCHAN ENGINEER Location: Boston, MA, Jersey City, NJ or Merrimack, NH (Hybrid – 2 weeks onsite , 2 weeks remote) Duration: Long term Contract with possibility of extension or Conversion Interview: 2 rounds , Round 1 - 30 min 1:1 with hiring manager Round 2 - 2 hours total - 1 hour with tech lead + 1 hour with architect back to back Project / Team Description: the Wallet Blockchain Platform Team is responsible for the backend services and APIs that support digital assets transactions on networks such as Bitcoin and Ethereum. The team will also lead tokenization efforts. This is part of a 6 member squad working on blockchain integration mostly. • 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/ Springboot/ 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 • Work well in both a small agile team and independently, having a strong user focus • Strong analytical and communication skills and the ability to handle multiple tasks at any given time • Participate in engineering practices such as code and design reviews, environment strategy, and build and deployment pipelines • Strong organization skills and attention to details • Experience with AWS or other cloud platforms and containerization technologies such as Docker is a plus • Experience with asynchronous workers and resilient messaging services such as SNS and SQS is a plus