Node.js Developer Responsibilities:
- Developing and maintaining all server-side network components.
- Ensuring optimal performance of the central database and responsiveness to front-end requests.
- Collaborating with front-end developers on the integration of elements.
- Designing customer-facing UI and back-end services for various business processes.
- Developing high-performance applications by writing testable, reusable, and efficient code.
- Implementing effective security protocols, data protection measures, and storage solutions.
- Running diagnostic tests, repairing defects, and providing technical support.
- Documenting Node.js processes, including database schemas, as well as preparing reports.
- Recommending and implementing improvements to processes and technologies.
- Keeping informed of advancements in the field of Node.js development.
Node.js Developer Requirements:
- Bachelor's degree in computer science, information science, or similar.
- At least 4 years' experience as a Node.js developer.
- Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
- Knowledge of front-end technologies such as HTML5 and CSS3.
- Superb interpersonal, communication, and collaboration skills.
- Exceptional analytical and problem-solving aptitude.

About Careator Technologies Pvt Ltd
About
Careator Technology is an end-to-end service provider for all your Application Development, Recruitment, and Staffing related requirements. Our primary competitive advantage is our ability to provide customized solutions that cover the whole process from beginning to finish. Careator maintains a broad variety of productive partnerships with organizations of the highest tier, and the firm ensures that each of its commercial associates is provided with an effective solution.
The founders of Careator understand that the combination of people and technology is essential to the success of a business. The company places a high premium on its employees and their relationships. This is reflected in the way that it creates its operational and strategic models, how it responds to consumers, how it connects with people, and how it promotes diversity in the workplace and the community.
Connect with the team
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● Coding, Implementing, Unit Testing and Documenting Typescript and Javascript based services.
● Design, build, and maintain efficient, reusable, and reliable code.
● Code reviews and ensuring adherence to software development standards.
● Contribute to team and organizational improvements in process and infrastructure.
● Participating in requirements gathering and functional specification activities.
● Resolving and helping to mitigate production issues.
What you need to be successful
● Has proven himself as a solid individual contributor and has some initial management ability
● Understands the culture and upholds it
● Well respected with the team
● Looking to grow more as a manager than as an engineer
● Split time b/w hands-on technical work and people management of a small team
● Be a role model for the people in your team
● Responsible for team mentorship, technical planning, resource allocation & project delivery
● Build solid working relationships with counterparts outside engineering
● If we shortlist you for a lead role, then you'll have to mentor SDE-1 towards their SDE-2 journey.
● Progress up to manager in 2-3 years
● Strong Data Structure and Algorithms
● Experience of building micro services architectures, developing RESTful services, continuous integration, unit and integration testing.
● Proficient with Express, Jest, Sinon and other Javascript frameworks apart from
RDBMS and NoSQL databases - PostgreSQL, MongoDB
● Gauge or other BDD frameworks and experience in Fintech would be preferred.
● Fintech experience - preferred
Responsibilities:
- Lead simultaneous development for multiple business verticals.
- Design & develop highly scalable, reliable, secure, and fault-tolerant systems.
- Ensure that exceptional standards are maintained in all aspects of engineering.
- Collaborate with other engineering teams to learn and share best practices.
- Take ownership of technical performance metrics and strive actively to improve them.
- Mentors junior members of the team and contributes to code reviews.
Requirements:
- A passion to solve tough engineering/data challenges.
- Be well versed with cloud computing platforms AWS/GCP
- Experience with SQL technologies (MySQL, PostgreSQL)
- Experience working with NoSQL technologies (MongoDB, ElasticSearch)
- Excellent Programming skills in Python/Java/GoLang
- Big Data streaming services (Kinesis, Kafka, RabbitMQ)
- Distributed cache systems(Redis, Memcache)
- Advanced data solutions(BigQuery, RedShift, DynamoDB, Cassandra)
- Automated testing frameworks and CI/CD pipelines Infrastructure orchestration(Docker/Kubernetes/Nginx)
- Cloud-native tech like Lambda, ASG, CDN, ELB, SNS/SQS, S3 Route53 SES
Key Responsibilities:
- Rewrite existing APIs in NodeJS.
- Remodel the APIs into Micro services-based architecture.
- Implement a caching layer wherever possible.
- Optimize the API for high performance and scalability.
- Write unit tests for API Testing.
- Automate the code testing and deployment process.
Skills Required:
- At least 2 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds.
- Excellent hands-on experience using MySQL or any other SQL Database.
- Good knowledge of MongoDB or any other NoSQL Database.
- Good knowledge of Redis, its data types, and their use cases.
- Experience with graph-based databases like GraphQL and Neo4j.
- Experience developing and deploying REST APIs.
- Good knowledge of Unit Testing and available Test Frameworks.
- Good understanding of advanced JS libraries and frameworks.
- Experience with Web sockets, Service Workers, and Web Push Notifications.
- Familiar with NodeJS profiling tools.
- Proficient understanding of code versioning tools such as Git.
- Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms.
- Should be a fast learner and a go-getter — without any fear of trying out new things Preferences.
- Experience building a large scale social or location-based app.
3+ years of experience developing Backends using NodeJS. Should be well versed with its asynchronous nature, event loop, promises, and callbacks.
Node expressProficient in Node.js and working knowledge of JavaScript, JQuery, AJAX, HTML, CSS, and frameworks ( React.js)
Experience in Node JS MVC framework and Rest API frameworks like Express.
Experience developing desktops.
Experience in Mongo DB.
Familiarity with using AWS components.
Postman for documenting/testing APIs.
3+ years of experience with development in JAVA technology.
Strong Java Basics
SpringBoot or Spring MVC
Hands-on experience with Relational Databases (SQL query or Hibernate) + Mongo (JSON parsing)
Proficient in REST API development
Messaging Queue (RabitMQ or Kafka)
Microservices
Any Caching Mechanism
Good at problem-solving
Good to Have Skills:
4+ years of experience in using Java/J2EE tech stacks
Good understanding of data structures and algorithms.
Excellent analytical and problem-solving skills.
Ability to work in a fast-paced internet start-up environment.
Experience in technical mentorship/coaching is highly desirable.
Understanding of AI/ML algorithms is a plus.

- Building products that impact millions
- Working on really tough problems that challenge you
- Being part of a small team where you are impactful
- 50K+ API requests/min
- 25K+ concurrent users every second
- Code, code & code
- Independently implement small to medium features
- Pick up & master new technologies
- Be a kickass developer
- A team that loves coding & building exceptional quality products
- Challenges that will push you beyond your limits
- A democratic place where everyone is heard & aware
- No hierarchy, politics, bosses, managers or anything like that
- And most importantly, Happy Vibes!
Bachelor's or Master's degree in Computer Science, Information Systems,
or equivalent.
EXPERIENCE – 2 to 5 years
CTC - UPTO 5.4L P.A.
JOB DESCRIPTION
We are looking for a backend developer who will be responsible for designing,
implementing, and supporting a distributed blockchain-based network. Your primary
responsibility will be analysing requirements, designing Blockchain technology around
a certain business model, and the building and launching of a blockchain network. You
will be asked to work on various blockchain technologies like Ethereum (Layer 1 & 2,
i.e Binance Smart Chain ).
● Analytical, results-driven Back-end Developer who will work with team members
to troubleshoot and improve current back-end applications and processes.
Focused on building a better, more efficient program and creating a better
end-user experience.
● Work closely with Frontend developers to integrate new web features into
our application
● Strong understanding of the web development cycle and programming
techniques and tools.
● Strong communication and presentation skills
● Ability to work in a fast-paced environment.
SKILLSET
● Experience with Smart contract development tools
● Strong background in Javascript, Python & Node JS, SQL
● Build new features and products using modern backend tools (Node.js, Mongo,
SQL, GraphQL)
● Hands-on technical exposure in implementing Blockchain technologies
(Ethereum and Hyperledger Familiarity with Hyperledger Fabric and Solidity )
Understanding of Distributed Ledger technology, Blockchain ecosystem and
structure.
● Experience working in an Agile and DevOps environment.
● Knowledge on Mining, Hashing, Elliptic Curve Cryptography(ECC) and P2P
networking Extensive experience with progression of major projects from the
planning stage through to implementation and completion Effective
communicator to all stakeholders and management during project consulting
and analysis. Strong Software development background.
● Experience on Smart contract and Solidity, development tools for Ethereum
(testrpc, geth, Web3, eth_lightwallet, etc.
● Experience in writing smart contracts.
● Good understanding of NFTs and tokens.
● Experience in wallet integration like MetaMask and Coinbase Wallet.
Experience working with decentralized application protocols like DeFi..
Working knowledge of at least one of the Blockchain frameworks such
as Hyperledger Fabric, R3 Corda, Ethereum (Solidity).
● Experience working with large code-bases.
● Proficiency in one or more of the following languages: C++, Go, Solidity,
Rust, Node.js, React.js.
● Strong knowledge of Algorithms and Data Structures.
● Familiarity with Cryptography.
● Familiarity with P2P networks
● Strong knowledge of bitcoin-like blockchains.
● Strong knowledge of concurrency and writing efficient and safe multithreaded
code
● Familiarity with code versioning tools such as Git

- NoSQL DB (MongoDB, CouchDB), PostgreSQL
- Mocha test environment
- Should JS testing framework
- Experience implementing mock services
- Nock API mocking
- NPM, Redis
- Typescript / Coffee script experience will be an added advantage
- Experience working with opensource JS projects
- Experience in developing REST API
- Source code management tool - Git / GitHub
- Understanding of TCP/IP networking and client/server web programming model
- Good communication skills
- Should be able to work with the cross-geo client team

