{"@context":"https://schema.org","@type":"JobPosting","directApply":"https://schema.org/False","title":"Backend Engineer/Node.js, AWS, Solana, Ethereum","description":"

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 experience
Strong 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 tests
Ability to quickly learn new technologies, including Golang if needed

Nice to Have

Experience with Ethereum blockchain
Familiarity with AWS Amplify
Knowledge of NX monorepo structure
Experience in high-performance, distributed systems
Experience with Golang

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