
Senior Fullstack Developer (Backend Heavy)

Job Overview:
We are looking for a Full-Stack Developer with 4+ years of experience in software development. The ideal candidate will be proficient in both frontend and backend technologies, capable of building scalable and high-performance applications, and have a problem-solving mindset. You will collaborate with cross-functional teams to develop, optimize, and maintain web applications.
Key Responsibilities :
- Design, develop, and maintain web applications ensuring performance and scalability.
- Work with backend services using Node.js (Express.js/NestJS) and databases.
- Develop and maintain frontend applications using React.js (minimum 1 year experience required).
- Integrate APIs (RESTful & GraphQL) and third-party services.
- Write clean, maintainable, and efficient code following industry best practices.
- Ensure security, reliability, and optimization in applications.
- Participate in debugging, troubleshooting, and performance tuning.
- Work closely with designers, product managers, and engineers to deliver high-quality solutions.
- Stay updated with modern development trends and contribute to technical improvements.
Required Skills & Qualifications :
- 4+ years of experience in full-stack development.
- Strong proficiency in JavaScript and TypeScript.
- Hands-on experience with Node.js (Express.js/NestJS).
- Minimum 1 year of experience working with React.js.
- Experience with SQL (PostgreSQL, MySQL) and NoSQL (MongoDB) databases.
- Proficiency in API design, development, and integration (RESTful, GraphQL).
- Familiarity with version control tools (Git, GitHub/GitLab/Bitbucket).
- Strong problem-solving and analytical skills.
- Ability to work both independently and collaboratively in a team.
Good to Have :
- Experience with Cloud Services (AWS, Azure, or GCP).
- Familiarity with Containerization (Docker, Kubernetes).
- Knowledge of testing frameworks (Jest, Mocha, or Cypress).
- Understanding of event-driven architectures and message queues (Kafka, RabbitMQ).

About FiftyFive Technologies Pvt Ltd
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1. Should have worked in Agile methodology and microservices architecture
2. Should have 7+ years of experience in Python and Django framework
3. Should have a good knowledge of DRF
4. Should have knowledge of User Auth (JWT, OAuth2), API Auth, Access Control List, etc.
5. Should have working experience in session management in Django
6. Should have expertise in the Django MVC and uses of templates in frontend
7. Should have working experience in PostgreSQL
8. Should have working experience in the RabbitMQ messaging channel and Celery Analytics
9. Good to have javascript implementation knowledge in Django templates
Responsibilities:
Develop and maintain server-side applications using Node.js.
Design and implement RESTful APIs for seamless integration with front-end applications.
Collaborate with front-end developers to integrate user-facing elements with server-side logic.
Optimize applications for maximum speed and scalability.
Implement security and data protection measures.
Design and maintain database schemas for both SQL (e.g., MySQL, PostgreSQL) and NoSQL (e.g., MongoDB) databases.
Manage and mentor junior developers, providing technical guidance and support.
Stay updated with emerging technologies and industry best practices.
● We are looking for a passionate individual contributor to join us as part of core engineering
team and help us in building our products and platform from scratch. The potential candidate
would be part of a strong tech team to help us disrupt the Indian consumer fintech space.
● You will be responsible for the full product lifecycle including requirements analysis, design,
implementation, testing, deployment and post-deployment monitoring.
Basic Qualification
● 1-6 years of strong individual contributor experience as a software engineer
● Strong knowledge of object-oriented programming concepts
● BS/MS or higher degree in computer science, computer engineering, or related work experience
● Knowledge of data structures/algorithms and an understanding of design tradeoffs
● Strong knowledge in Java and experience with Spring Framework
Following are some of the attributes we are looking for:
● Experience of working with large and cutting-edge internet startups and firms
● Excellent communication skills in both written and verbal communication
● A strong desire to break the code and find hidden bugs before customers find them in
production
● Strong sense of ownership, solid work ethic and a responsible team player
What's on offer
● Opportunity to be part of the core engineering team of a promising startup solving one of
the biggest business opportunities in India
● Unique opportunity in building a fintech business from scratch using most of the related
technologies and integration with major players
● Opportunity to experiment with latest technologies and develop full-fledged product using
them
● Stock options
● Competitive salary

We are seeking a skilled Node.js + Python Developer to join our team. The successful candidate will be responsible for developing and maintaining web applications using Node.js and Python. The ideal candidate will have a strong understanding of both Node.js and Python, as well as web application development. Responsibilities:
Developing and maintaining web applications using Node.js and Python
Write clean and efficient code that adheres to Node.js and Python coding standards
Collaborate with other developers and team members to design and implement new features
Troubleshoot and debug issues in existing code
Create and maintain technical documentation
Requirements:
Strong knowledge of Node.js and Python
Familiarity with front-end technologies such as HTML, CSS, and JavaScript
Experience with MySQL/Mongo and database design
Good understanding of object-oriented programming and design patterns
Strong problem-solving skills and attention to detail
Good communication skills and ability to work in a team environment
Preferred Qualifications:
Experience with popular Node.js frameworks such as Express or Koa
Experience with OpenAi APIs
Knowledge of machine learning and data science libraries in Python such as TensorFlow, Scikit-learn, and Pandas
Experience with RESTful API development
Experience with payment gateway integrations
6 days working -Remote working would do
JOB DES RIPTION
Founded by experienced founders and funded by Tier-1 VCs, It's a solution for democratizing the shopping experience on e-commerce platforms. Our aim is to provide a superior shopping experience for all our partners and improve both customer satisfaction and their GMV.Being an early-stage company, we are looking for self-driven, motivated people who want to build something exciting and are always looking out for the next big thing. We plan to build this company remotely, which brings freedom but also an added sense of responsibility. If all this sounds interesting to you read on
Responsibilities
- Writing testable and efficient code
- Design and implementation of low-latency, high-availability, and performant applications
- Implementation of security and data protection
- implementing business logic and developing APIs and services
- Build reusable code and libraries for future use.
Skills And Qualifications
- 2-3 years of hands-on experience in back-end development with Node.js.
- Knowledge of Node.js frameworks such Resitfy
- Good understanding of server-side templating languages
- Basic understanding of front-end technologies, such as HTML5, and CSS3
- Expertise with Linux based systems
- Proficient understanding of code versioning tools, such as Git
- Have worked in any of the cloud based platform AWS, GCP, Docker, Kubernetes.
Traits we value
- Independent, resourceful, analytical, and able to solve problems effectively
- Ability to be flexible, agile, and thrive in chaos
- Excellent oral and written communication skills

Job Description:
We are looking for a passionate Backend developer with a focus on building maintainable and scalable systems. The developer will be responsible for the design and development of Jodo’s backend platforms. You will be closely working with Product Managers and Frontend developers to gather requirements and implement features. As a senior developer in the Team, you will be taking ownership of services/systems and be a mentor to other developers in the team.
Responsibilities:
● Own and drive the development of new features
● Lead design and development of the Jodo backend platform
● Troubleshoot production defects and performance issues
● Write reusable code/modules
● Optimize for speed of development/delivery
● Collaborate with frontend developers for integration
● Identify opportunities for automation
● Make cloud(AWS) infrastructure/services scalable and secure
Qualifications:
● 5+ years of proven experience as a Backend developer
● Experience in working with distributed systems
● Proficient in building Microservices/RESTful APIs with any modern tech stack
● Working knowledge of relational and nonrelational databases
● Prior working knowledge of Python/Django is a big plus
● Familiarity with modern CI/CD tools
● Knowledge of AWS or any other Cloud Platform services
● Champion code quality and drive best practices
● Ability to analyze and convert business requirements into technical requirements
● Self-starter and ability to take the ownership
● Prior experience working in a startup environment is great to have

Job Description for Python Backend Developer
2 + years expertise in Python 3.7, Django 2 (or Django 3).
Familiarity with some ORM (Object Relational Mapper) libraries.
Able to integrate multiple data sources and databases into one system.
Integration of user-facing elements developed by front-end developers with server-side logic in Django (RESTful APIs).
Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3
Knowledge of user authentication and authorization between multiple systems, servers, and environments
Understanding of the differences between multiple delivery platforms, such as mobile vs desktop, and optimizing output to match the specific platform
Able to create database schemas that represent and support business processes
Strong unit test and debugging skills.
Proficient understanding of code versioning tools such as Git.
The desirables optionals
Django Channels, Web Sockets, Asyncio.
Experience working with AWS or similar Cloud services.
Experience in containerization technologies such as Docker.
Understanding of fundamental design principles behind a scalable application (caching, Redis)
Role: Software Developer
Industry Type: IT-Software, Software Services
Employment Type Full Time
Role Category Programming & Design
Qualification: Any Graduate in Any Specialization
Key Skills – Python 3.7 Django 2.0 onwards , REST APIs , ORM, Front End for interfacing only ( curl, Postman, Angular for testing), Docker (optional), database (PostgreSQL), Github
- Working knowledge of Node-Sync, callback hell and ways to control asynchronous behavior of Node functions.
- Strong command on ES6(EcmaScript) or Javascript and its concepts like prototypes, call back, closures etc
- Should have deep understanding of Native Node.js, Express.js, HAPI.js and middlewares.
- Candidates must have proper understanding and command on RESTful API development and consumptions.
- Candidates must know to use promises, async-await to control synchronization of business logic components.
- Candidates must have knowledge of JWT, oAuth and passport.js for user authentication.
- Candidates must have knowledge of GIT, Bit-bucket.
- Candidates must have knowledge of application deployment.
- Experience with NoSQL databases eg mongodb (preferred).



Candidate must have experience with start up product based companies.
Opportunity is with the client from E Mobility domain.

