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Backend Engineer/Node.js, AWS, Solana, Ethereum MetaWealth. We are looking for a . Backend Engineer. to join our team and help build scalable, high-performance backend systems. You will be responsible for designing and implementing . RESTful and GraphQL APIs. , working with . microservices and AWS Lambda functions. , and integrating with . Solana and Ethereum . blockchains. .This. role requires strong . problem-solving skills, a deep understanding of backend development. , and the ability to collaborate closely with . frontend engineers, DevOps, and the product team. . Communication and teamwork are key as we work in an . Agile development environment. .. Responsibilities. Develop and maintain . RESTful and GraphQL APIs. Design . architecture and plan features. with scalability and maintainability in mind. Build . internal tools and automate manual processes. Work closely with the . product team, frontend engineers, and DevOps. to deliver high-quality features. Monitor . production backend systems. to ensure stability and performance. Integrate with . Solana and Ethereum blockchains. (Solana experience is highly important). Write . unit and integration tests. to ensure code quality and reliability. Tech Stack. Languages:.  . Node.js. (Golang is a plus, but you should be able to learn fast). Databases:. DynamoDB with AppSync, PostgreSQL on AWS RDS. Frameworks & Tools:. Express, NX monorepo, AWS Amplify (plus). AWS Services:. Lambda, ECS, ECR, RDS, CloudWatch, SQS, SNS, SES, Cognito, Redis, S3, CloudFront. Testing:. Jest. Blockchain:. Solana (Helius RPC, Helius webhooks, Anchor framework, SPL token, Metaplex Core), Ethereum. Requirements. 3+ years. of backend development experienceStrong experience with . Node.js.  . Experience. building . RESTful and GraphQL APIs. Hands-on experience with . AWS services. (Lambda, ECS, RDS, etc.). Experience working with . microservices architecture. Proficiency in . relational and NoSQL databases. (PostgreSQL, DynamoDB). Experience with . Solana blockchain integrations. (Helius, Anchor, SPL token, Metaplex Core). Strong knowledge of . testing best practices. and experience writing testsAbility to . quickly learn new technologies. , including Golang if needed. Nice to Have. Experience with . Ethereum blockchain. Familiarity with . AWS Amplify. Knowledge of . NX monorepo. structureExperience in . high-performance, distributed systems. Experience with . Golang