
Gammastack - Backend Developer - Node.js/Express.js
2 days ago
Description :- Lead and own backend development using Node.js and Express.js.- Design, build, and maintain scalable RESTful APIs and microservices architecture.- Write, debug, and optimize complex raw SQL queries for performance and scalability.- Work with PostgreSQL and Sequelize ORM for data modeling and management.- Implement caching solutions using Redis & Integrate real-time features using Socket.io.- Develop and integrate smart contracts (Solidity / Rust).- Work with blockchain protocols (Ethereum, Polygon, BNB Chain, Solana, etc.) to enable smooth crypto transactions.- Design and implement wallet integrations (MetaMask, WalletConnect, custom/custodian wallets).- Integrate Web3.js / Ethers.js or similar blockchain libraries into the backend.Required Skills :- 3- 5 years of experience as a Backend Developer with at least 2-3 years with blockchain projects.- Expertise in raw SQL queries, indexing, joins, query tuning, and optimization.- Strong proficiency in PostgreSQL and Sequelize ORM.- Hands-on experience with Docker, Redis, and Socket.io.- Familiarity with AWS cloud services (EC2, S3, RDS).- Strong understanding of backend performance optimization techniques.- Proven leadership or mentoring experience in engineering teams.- Strong proficiency in Solidity (Rust is a plus).- Experience with Web3.js / Ethers.js or similar blockchain libraries.- Experience with multiple blockchain protocols (Ethereum, Polygon, BNB Chain, Solana, etc.- Knowledge of wallet integrations (MetaMask, WalletConnect, custom/custodian wallets).Must-Have Skills :- Node.js & Express.js backend development.- PostgreSQL (raw SQL, Sequelize ORM).- Redis caching & Socket.io real-time features.- Solidity smart contracts & major blockchain protocols (Ethereum, Polygon, BNB, Solana).- Web3.js / Ethers.js & wallet integrations (MetaMask, WalletConnect).- Docker & basic AWS deployment skills.- Backend performance optimization & team leadership. (ref:hirist.tech)
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Bengaluru, India GAMMASTACK Full timeJob Description Job Description Responsibilities : - Lead the design, development, and implementation of complex Node.js applications - Architect scalable, performant, and maintainable server-side systems - Collaborate with cross-functional teams to define, design, and ship new features - Mentor and coach junior developers to improve their skills and...
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Bengaluru, India Gammastack Full timeDescription:- Lead and own backend development using Node.js and Express.js- Design, build, and maintain scalable RESTful APIs and microservices architecture- Write, debug, and optimize complex raw SQL queries for performance and scalability- Work with PostgreSQL and Sequelize ORM for data modeling and management- Implement caching solutions using Redis &...
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Node.js Developer
2 weeks ago
Bengaluru, India Gammastack Full timeDescription : Responsibilities : - Lead the design, development, and implementation of complex Node.js applications- Architect scalable, performant, and maintainable server-side systems- Collaborate with cross-functional teams to define, design, and ship new features- Mentor and coach junior developers to improve their skills and productivity- Perform code...
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Bengaluru, India GAMMASTACK Full timeJob Description Responsibilities - Lead the design, development, and implementation of complex Node.js applications - Architect scalable, performant, and maintainable server-side systems - Collaborate with cross-functional teams to define, design, and ship new features - Mentor and coach junior developers to improve their skills and productivity - Perform...
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Gammastack - Next.js Developer
2 days ago
Bengaluru, India Gammastack Full timeJob Description :- Designing, developing, and implementing web applications using Next.js- Knowledge of related front-end technologies, such as, HTML, CSS, and JavaScript- Should have knowledge of ReactJS library- Should have knowledge of ES6 concepts, server side rendering- You possess knowledge of state management libraries, such as Redux or MobX- You are...
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Node.js Developer
4 days ago
Bengaluru, India Whitefield Careers Full timeKey Responsibilities :- Design, develop, and maintain RESTful APIs and backend services using Node.js, Express, and related frameworks.- Build and maintain scalable, serverless applications using AWS Lambda, API Gateway, and other AWS services.- Implement JWT token-based authentication and enforce secure access control mechanisms across APIs.- Collaborate...
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Gammastack - Lead Next.js Developer - Javascript
4 weeks ago
Bengaluru, India Gammastack Full timeJob Description : We are seeking a highly skilled and proactive Lead Next.js Developer to drive the architecture, development, and performance of modern web applications. You will lead a team of 5 - 6 developers, ensuring high standards of code quality, project execution, and team productivity. This is a hands-on leadership role where you'll contribute...
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Node.js Developer
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Bengaluru, India KVAS Technologies Full timeJob Title : Node.js DeveloperExperience : 4+ YearsLocation : BangaloreJob Summary : We are seeking a highly skilled Node.js Developer with 4+ years of experience to join our development team. The ideal candidate will be responsible for building scalable backend services, integrating APIs, and ensuring high performance of applications.Key Responsibilities...
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Backend Developer
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Bengaluru, India Akshaya IT Business solutions Full timeDescription : Backend Developer Node.jsExperience : 7+ YearsMode of Interview : Face-to-Face (Mandatory)Mandatory Skills :- Node.js- JavaScript- Knowledge of at least one database : MySQL, DB2, Oracle, etc.Responsibilities : - Develop and maintain backend services using Node.js and frameworks like Express.js.- Write reusable, testable, and efficient code...
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Backend Developer
4 days ago
Bengaluru, India Workify Consulting Full timeCompany DescriptionWorkify Consulting is dedicated to transforming HR from a compliance necessity into a driver of growth for startups and MSMEs.By providing structure, strategy, and cultural expertise, we bridge the gaps in people management that scaling businesses encounter.With over 40 years of HR leadership experience from global organizations and...