Node js Backend developer at Crescentek · Kolkata · 2 - 6 years · ₹3L - ₹7L / yr · Profitable · Posted 12 Jan 2023

You should be proficient in Node js , Mongo db , Express , React js.

About Crescentek
About
We are the leading online marketing firm that enables you to get huge return on your investment. Our main objective is to provide unique website design to our valuable customers that will definitely make their business extraordinary from the entire crowd. Wherever you may be located, we will create website for you or help you to redesign your present website so that it looks more professional.
Our Mission Value
Our Mission is built on underpinnings that spell transparency and dedication. While we firmly believe that dedication is not what you expect of us, but what we can give to you, we do it in the most visible way - not behind your back. All our strategies and techniques that would be employed for raising your ranking will never be shrouded in any deceptive veil but would be conducted in an honest straightforward fashion. That's precisely why most our clients have stopped being clients; they have become friends. Even though we have not given birth of their Brands but we have reared them to maturity
Our Support
We are available 24*7 for our clients. We work with you so that your website explains about your products and services and improve marketing strategy. We are always there to offer right solution for all our client's requirements
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Job Summary
We are looking for a skilled Backend Developer with strong Node.js experience to join our development team. The ideal candidate should have hands-on experience in building scalable, secure, and high-performance backend applications and APIs.
You will work closely with frontend developers, product managers, and other engineering teams to design, develop, test, and maintain backend services and applications.
Key Responsibilities
- Design, develop, and maintain scalable backend applications using Node.js.
- Build and maintain RESTful APIs and backend services.
- Write clean, reusable, maintainable, and efficient code.
- Work with databases such as MongoDB, PostgreSQL, MySQL, or similar.
- Integrate third-party APIs and external services.
- Implement authentication, authorization, and security best practices.
- Optimize application performance, scalability, and reliability.
- Identify and resolve bugs, performance issues, and production problems.
- Write unit and integration tests to ensure application quality.
- Collaborate with frontend developers to integrate APIs with web/mobile applications.
- Participate in code reviews and follow development best practices.
- Work with Git and standard CI/CD and deployment processes.
- Contribute to system design and technical discussions.
Required Skills
- 2–6 years of professional experience in backend development.
- Strong hands-on experience with Node.js.
- Good knowledge of JavaScript and/or TypeScript.
- Strong understanding of REST APIs, HTTP, JSON, and API design.
- Experience with Express.js, NestJS, or similar Node.js frameworks.
- Good understanding of relational or NoSQL databases such as PostgreSQL, MySQL, or MongoDB.
- Knowledge of SQL and database design.
- Experience with Git/GitHub/GitLab/Bitbucket.
- Understanding of authentication mechanisms such as JWT/OAuth.
- Strong problem-solving and debugging skills.
- Good understanding of data structures, algorithms, and backend architecture.
Good to Have
- Experience with TypeScript.
- Knowledge of AWS / Azure / GCP.
- Experience with Docker and Kubernetes.
- Knowledge of Redis, Kafka, RabbitMQ, or other caching/message queue technologies.
- Experience with microservices architecture.
- Familiarity with CI/CD pipelines.
What we need:
• Experience in both Web + Mobile development
• Strong understanding of APIs & system design
• Ability to build end-to-end features
· Maintain version control and documentation using Git / GitHub.
Roles and Responsibilities
- Design and develop responsive web applications using React.js / Next.js.
- Build and maintain scalable RESTful APIs using Node.js and Express.js.
- Implement user authentication and authorization using JWT / OAuth2.
- Manage and optimize database structures using MongoDB or MySQL.
- Integrate front-end and back-end components seamlessly for smooth user experience.
- Collaborate with UI/UX designers and product teams to deliver high-quality features.
- Participate in Agile / Scrum sprints, daily stand-ups, and code reviews.
- Optimize applications for speed, performance, and security.
- Maintain version control and documentation using Git / GitHub.
Troubleshoot and debug production issues efficiently.
Job Location- Bangalore,
Candidates from Tamil Nadu willing to relocate to Bangalore can also apply.
Backend Developers
- Contract To Hire (Initial Engagement: 6 months)
Experience: 5+ years
Mandatory Skills:
● Node.js
● Python
● MongoDB
● PostgreSQL
● REST API design and development
● Backend architecture and service design
● Database design, indexing and query optimisation
● Performance tuning
● Authentication/authorisation
● Third-party integrations
● Asynchronous processing and background jobs
● Logging, monitoring and debugging
● Git and collaborative development
● Scalable, maintainable and testable backend services
● Architecture discussions, code reviews, debugging and production support
Good to have:
● Microservices
● Docker
● Cloud platforms
● Redis
● Message queues
● CI/CD
● Observability
Job Title: Backend Developer Trainee
Location: Indore, Madhya Pradesh
Experience: 0–6 Months
Job Type: Full-Time | Work From Office
Job Overview
TechnoToil is looking for a motivated Backend Developer Trainee who is eager to learn, build scalable applications, and work with modern backend technologies. The ideal candidate should have a strong learning attitude and be comfortable using AI tools in development workflows.
Roles & Responsibilities :-
- Develop and maintain backend applications and APIs.
- Write clean, efficient, and maintainable code.
- Work with databases and perform basic database operations.
- Assist in developing, testing, debugging, and optimizing backend functionality.
- Integrate APIs and third-party services as required.
- Collaborate with frontend developers and other team members.
- Use AI tools to improve coding, debugging, documentation, and development productivity.
- Learn and adapt to new backend technologies and development practices.
- Follow coding standards and development best practices.
Requirements:-
- Graduation must be completed.
- 0–6 months of experience; freshers and trainees are welcome.
- Basic understanding of backend development concepts.
- Knowledge of any backend programming language/framework is an advantage.
- Good communication and problem-solving skills.
- Strong willingness to learn and grow.
- Candidate must be comfortable working with AI tools as part of the development process.
- Ability to work effectively in a team.
Job Location:-
2nd Floor, Building Number 79, Main Road, Behind C21 Mall, Scheme 54 PU4, Indore
Responsibilities:
* Collaborate with cross-functional teams on project requirements and deliverables
* Develop user interfaces using React.JS and Express API's
* Implement database solutions with MongoDB and Node.JS
Click "Apply Now" in https://gosuperedtech.com/career/junior-fullstack-developer to apply
Role Overview
We are looking for a Junior Full Stack Developer who is eager to kickstart their career in software development. This role offers a fantastic opportunity to grow by working closely with experienced engineers on real product features that impact thousands of learners.
You will develop your skills by contributing to both frontend and backend codebases, primarily using React for building user interfaces and Node.js for backend services.
This role is ideal if you’re passionate about coding, curious about product development, and excited to learn modern technologies while solving meaningful problems.
What You’ll Do
- Write clean, maintainable, and well-tested frontend code using React
- Support backend development and API integrations with Node.js(Express or NestJS)
- Help build responsive, accessible, and performant web and mobile interfaces
- Collaborate with product managers, designers, and senior engineers to understand requirements and deliver features
- Participate in daily standups, sprint planning, and team meetings
- Assist in troubleshooting and debugging issues across the stack
- Learn and apply best practices for version control (Git), CI/CD pipelines, and deployment workflows
- Contribute to code reviews and continuous improvement of code quality
- Continuously improve your skills through feedback, learning sessions, and hands-on experience
What We’re Looking For
- Strong fundamentals in JavaScript and TypeScript
- Proficiency with React — understanding components, state, props, and lifecycle
- Basic experience or knowledge of Node.js backend development
- Understanding of RESTful APIs and how to consume them
- Eager to learn new tools, frameworks, and technologies
- Ability to work well in a collaborative team environment
- Good communication skills to discuss ideas and challenges openly
- Problem-solving mindset and willingness to take ownership of your work
Nice to Have (Not Mandatory)
- Familiarity with Next.js or server-side rendering frameworks
- Exposure to React Native for mobile app development
- Basic understanding of databases like PostgreSQL, MongoDB, or Redis
- Experience with Git or other version control systems
- Personal or academic projects demonstrating your coding abilities
- Internship experience or contributions to open-source projects
What You’ll Gain
- Hands-on experience building Full Stack SaaS products in a real startup environment
- Mentorship from senior engineers and leaders passionate about teaching and growth
- Exposure to cloud infrastructure, DevOps practices, and scalable system design
- Opportunity to contribute to product decisions and see your work impact actual users
- Learning culture that encourages experimentation, feedback, and continuous improvement
- Access to Cult Elite and Cult Play Pass, offering wellness and lifestyle benefits to keep you energized and inspired
Compensation
- Competitive salary with performance-based bonuses
- Equity (ESOPs) – own a piece of the company you help build
- Flexible remote work options with occasional Bengaluru office meetups
- Health and wellness perks, including Cult Elite membership and Cult Play Pass for employees
- Learning & development budget to support your growth
- Team retreats, virtual hangouts, and a collaborative culture
We are looking for a Junior Full Stack Developer who is eager to kickstart their career in software development. This role offers a fantastic opportunity to grow by working closely with experienced engineers on real product features that impact thousands of learners. Click "Apply Now" in https://gosuperedtech.com/career/junior-fullstack-developer to apply
Strong Backend Node.js Developer Profile
2
Mandatory (Experience 1) – Must have 7+ years of hands-on Backend Engineering experience using Node.js building production-grade systems for B2C products at meaningful consumer scale
3
Mandatory (Experience 2) – Must be AI-native in their own engineering workflow: already uses LLMs and agentic tooling across the SDLC, from design and code generation through testing and debugging
4
Mandatory (Experience 3) – Must have owned backend architecture end to end, including greenfield builds. Should be able to make early architecture calls and reason clearly about service boundaries, data flow, caching, queueing, failure modes, scalability, and reliability trade-offs under real constraints.
5
Mandatory (Experience 4) – Must have a solid understanding of backend fundamentals, including API development, service-oriented architecture, data structures, algorithms, and clean coding practices
6
Mandatory (Experience 5) – Must have experience designing, building, and maintaining APIs and backend services, including integrations with external systems and third-party platforms
7
Mandatory (Experience 6) – Must have strong experience working with databases (SQL and/or NoSQL), including efficient data modeling, query optimization, and performance tuning
8
Mandatory (Company) – Must have worked in B2C product companies / startups at meaningful consumer scale. (WealthTech, FinTech, or high-growth consumer product background is highly preferred)
9
Mandatory (Stability) – Must have a stable career history, with consistent tenure across previous companies; frequent job-hopping will not be considered
10
Mandatory (AI Product) – Must have experience building and shipping products that use LLMs and agentic workflows to end users.
11
Mandatory (College) – ) - B.Tech or Dual degree (Btech and Mtech or Integrated Msc/MS) from Tier 1 Engineering Institutes (IITs, not NITs). Candidates from other institutions will not be considered unless they come from top top-tier product companies
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Mandatory (Compensation Alignment) – Candidate must be comfortable with the compensation structure where the company matches their current CTC and provides ESOPs, without any salary hike
About the Role
We are looking for enthusiastic Backend Developer Interns to join our team remotely for a 3-month internship. This is an excellent opportunity to gain hands-on experience in backend development, work on real projects, and expand your technical skills. While this is an unpaid internship, interns who successfully complete the program will receive a Completion Certificate and a Letter of Recommendation.
Responsibilities
- Assist in developing and maintaining backend services and APIs.
- Work with databases (SQL/NoSQL) for data storage and retrieval.
- Collaborate with frontend developers to integrate user-facing elements with server-side logic.
- Write clean, efficient, and reusable code.
- Debug, troubleshoot, and optimize backend performance.
- Participate in code reviews and team discussions.
- Document technical processes and contributions.
Requirements
- Basic knowledge of at least one backend language/framework (Node.js, Python/Django/Flask, Java/Spring Boot, or similar).
- Understanding of RESTful APIs and web services.
- Familiarity with relational and/or NoSQL databases (MySQL, PostgreSQL, MongoDB, etc.).
- Knowledge of Git/GitHub for version control.
- Strong problem-solving and analytical skills.
- Ability to work independently in a remote environment.
- Good communication skills and eagerness to learn.
What You’ll Gain
- Real-world experience in backend development.
- Mentorship and exposure to industry practices.
- Completion Certificate at the end of the internship.
- Letter of Recommendation based on performance.
- Opportunity to strengthen your portfolio with live projects.
Internship Details
- Duration: 3 months
- Location: Remote (Work from Home)
- Stipend: Unpaid
- Perks: Completion Certificate + Letter of Recommendation
Position: Full Stack Developer (React.js + Node.js)
Experience: 2–5 Years
Location: Mumbai – Chembur West (Onsite)
Job Summary
We are looking for a Full Stack Developer with strong hands-on experience in React.js and Node.js to build scalable, secure, and high-performance web applications. The ideal candidate should be comfortable owning features end-to-end, developing responsive UI, building REST APIs, integrating databases, and supporting production systems.
Key Responsibilities
- Build responsive UI using React.js, HTML5, CSS3, JavaScript (ES6+)
- Develop scalable backend services and RESTful APIs using Node.js (Express.js / NestJS)
- Work with MongoDB and MySQL (schema design, indexing, query optimization)
- Implement authentication & authorization using JWT , RBAC , Oauth
- Integrate third-party APIs, Webhooks
- Build real-time features using Socket.io / WebSockets
- Ensure performance, scalability, and security (validation, sanitization)
- Implement caching using Redis (if applicable) and optimize API response times
- Support API testing (Postman/Supertest)
- Maintain API documentation using Swagger / OpenAPI
- Debug and resolve defects, handle RCA, and support production troubleshooting with logs/monitoring
- Follow Git-based workflows, participate in code reviews, and collaborate with QA/product teams in Agile delivery
Mandatory Skills
- React.js, Node.js, JavaScript (ES6+)
- MongoDB (must), MySQL
- REST API development & integration
- Socket.io / WebSockets, Webhooks
- HTML5, CSS3
- Git
- Typescript, Express.js / NestJS
- jQuery / AJAX (basic / legacy support)
Good to Have
- Redis, Swagger/OpenAPI
- Docker, CI/CD (GitHub Actions/Jenkins)
- Cloud exposure (AWS/Azure/GCP)
Qualification
BE / BTech / MCA / MSc IT / BSc IT with 2–5 years relevant experience.
CTC: As per industry std.
Role Overview
We are looking for a MERN / MEAN Full Stack Developer to develop and maintain modern web applications.
The candidate should be comfortable working on both frontend and backend components and collaborating closely with cross-functional teams.
Key Responsibilities
Design, develop, and maintain full-stack web applications using MERN or MEAN stack
Build responsive and user-friendly frontend interfaces
Develop secure, scalable backend APIs and services
Work with databases to design efficient schemas and queries
Integrate third-party services and internal systems
Write clean, reusable, and well-tested code
Participate in code reviews and team discussions
Debug and resolve application issues across the stack
Required Skills & Experience
2+ years of hands-on experience in MERN or MEAN stack development
Strong experience with JavaScript / TypeScript
Proficiency in React.js or Angular
Experience with Node.js and Express.js
Hands-on experience with MongoDB (and/or other databases)
Strong understanding of REST APIs
Experience using Git for version control Good to Have (Preferred Skills)
Exposure to Next.js or modern frontend frameworks
Knowledge of authentication, authorization, and security best practices
Experience with cloud platforms (Azure / AWS)
Familiarity with CI/CD pipelines
Exposure in Rust Framework and development using Tauri.app.












