Backend Developer

Roles & Responsibilities :

• 1-2 years of hands-on experience in backend development with Java & Spring Boot.
• Build scalable and modular microservices for business-critical applications.
• Implement RESTful APIs and ensure high performance and responsiveness.
• Proficient with SQL databases (MySQL etc) Troubleshoot production issues and improve system reliability and scalability.

Full stack Developer (Ref.ID: VRPL-FSD-Chn-0326)

No. of Positions: 2 Nos. Senior 1 No. Junior 1 No.

API Development & Architecture:

Design and develop scalable RESTful APIs using Node.js & TypeScript

Build modular, reusable, and clean backend architecture

Implement authentication & authorization (JWT / OAuth / Role-based access)

Ensure API security best practices

Write well-structured documentation (Swagger / Postman)

Real-Time Communication (Sockets):

Develop real-time features using WebSockets / Socket.io

Implement:

Live tracking

Real-time notifications

Status updates

Chat systems

Optimize socket performance and reconnection handling

Ensure scalability under concurrent user load

Database & Data Layer (PostgreSQL):

Design scalable and optimized database schemas

Write complex SQL queries & joins

Implement indexing & query optimization

Handle transactions and concurrency control

Work with ORMs like Prisma / TypeORM (preferred)

Maintain database security and backup strategies

Ensure data security and backups

Performance & Scalability:

Optimize API response times

Implement caching strategies (Redis preferred)

Design rate limiting and throttling mechanisms

Ensure system reliability & fault tolerance

Handle background jobs & queues

Deployment & DevOps Collaboration:

Deploy applications on AWS / GCP

Work with Docker containers

Implement CI/CD pipelines

Monitor logs & performance metrics

WhatsApp Business Integration:

Integrate WhatsApp Business API (Cloud / On-Premise)

Work with providers like Exotel / Twilio (preferred)

Implement Template messaging

OTP authentication

Notifications & alerts

Two-way communication

Manage webhook events and delivery tracking

Ensure compliance with WhatsApp policies

Required Skills:

Strong proficiency in Node.js

Hands-on experience with TypeScript

Strong experience in PostgreSQL

Experience building RESTful APIs

Experience with WebSockets / Socket.io

Good understanding of system design & architecture

Git version control

Knowledge of API security best practices

Preferred Skills:

Experience in real-time platforms (ride-hailing, delivery, chat systems)

Redis for caching

Message queues (Kafka / RabbitMQ / BullMQ)

Microservices architecture

Payment gateway integration

Cloud infrastructure knowledge

Soft Skills:

Strong analytical, problem-solving skills, and debugging skills

Startup mindset & ownership attitude

Ability to work in fast-paced startup environment and work independently

Good communication skills in all aspects

Backend - Software Development Engineer II

Experience - 4+ yrs 

About Wekan Enterprise Solutions

Wekan Enterprise Solutions is a leading Technology Consulting company and a strategic investment partner of MongoDB. We help companies drive innovation in the cloud by adopting modern technology solutions that help them achieve their performance and availability requirements. With strong capabilities around Mobile, IOT and Cloud environments, we have an extensive track record helping Fortune 500 companies modernize their most critical legacy and on-premise applications, migrating them to the cloud and leveraging the most cutting-edge technologies.

Job Description

We are looking for passionate software engineers eager to be a part of our growth journey. The right candidate needs to be interested in working in high-paced and challenging environments. Interested in constantly upskilling, learning new technologies and expanding their domain knowledge to new industries. This candidate needs to be a team player and should be looking to help build a culture of excellence. Do you have what it takes?

You will be working on complex data migrations, modernizing legacy applications and building new applications on the cloud for large enterprise and/or growth stage startups. You will have the opportunity to contribute directly into mission critical projects directly interacting with business stakeholders, customer’s technical teams and MongoDB solutions Architects.

Location - Bangalore

Basic qualifications:

• Good problem solving skills
• Deep understanding of software development life cycle
• Excellent verbal and written communication skills
• Strong focus on quality of work delivered
• Relevant experience of 4+ years building high-performance backend applications with, at least 2 or more projects implemented using the required technologies

Required Technical Skills:

• Extensive hands-on experience building high-performance web back-ends using Node.Js. Having 3+ hands-on experience in Node.JS and Javascript/Typescript and minimum
• Hands-on project experience with Nest.Js
• Strong experience with Express.Js framework
• Hands-on experience in data modeling and schema design in MongoDB 
• Experience integrating with any 3rd party services such as cloud SDKs, payments, push notifications, authentication etc…
• Exposure into unit testing with frameworks such as Mocha, Chai, Jest or others
• Strong experience writing and maintaining clear documentation

Good to have skills:

• Experience working with common services in any of the major cloud providers - AWS or GCP or Azure
• Experience with microservice architecture
• Experience working with other Relational and NoSQL Databases
• Experience with technologies such as Kafka and Redis
• Technical certifications in AWS / Azure / GCP / MongoDB or other relevant technologies

Experience: 3-7 Years

Qualification- Graduation: Bachelor of Science (B.Sc) / Bachelor of Technology (B.Tech) / Bachelor of Computer Applications (BCA)

Post-Graduation: Master of Science (M.Sc) /Master of Technology (M.Tech) / Master of Computer Applications (MCA)

Roles and Responsibilities:

• Must have experience in Microservice architecture with the ability to collaborate effectively with team members and build positive working relationships.
• Design and build and deploy APIs to meet business requirements.
• High level of commitment to business satisfaction and agility.
• Strong work ethic and a passion for the role, with a positive attitude and a willingness to learn.
• Communicate effectively with the tech lead to thoroughly understand the requirements and highlight any blockers immediately.
• Handle programming and software development, including requirement gathering, bug fixing, testing, documenting, and implementation.
• Work in an agile environment to deliver high-quality solutions.
• Understand and implement Security, Logging, Auditing, Policy Management, and Performance Monitoring.
• Familiarity with relational databases (E.g.: Oracle), non-relational databases (E.g.: MongoDB), MSK Kafka, Docker, Kubernetes, and CICD Technologies (Jenkins, GitHub, Maven)

Key Responsibilities:

• Development of a Single Page Application (SPA) and it's components in Typescript: deployed and optimized for progressive mobile and browsers using Angular 2 and Ionic 2 frameworks.
• Creating custom, general use modules and smart components which extend the elements and modules of core Angular framework.
• Creating self-contained, reusable, and testable modules and components in Typescript and using responsive HTML and CSS.
• Architecting and automating the build process for production, using task runners or scripts.
• Writing non-blocking code, and resorting to advanced techniques such as multi-threading, when needed

Skills and Qualifications:

• Should have experience with CSS 3, SCSS, Java script and HTML5.
• Full-time knowledge of Angular practices and commonly used modules based on extensive work experience. Or 2 Year or more experience with other industry-leading frameworks like React.
• Minimum 1-year experience in working and extending one of the CSS or UI frameworks like Ng-lightening, Angular-material

Education:

• BE / BTech / MCA

Zerozilla Infotech Pvt Ltd is a team of highly creative professionals creating seamless

web solutions ranging from web designing and development, mobile application,

custom software development, and digital marketing services for businesses.

We work with B2B, B2C companies, government bodies, institution-led and independent start-ups to generate value and give them a competitive edge.

We are experts with over Six years of experience in providing comprehensive and

unified solutions to your business challenges. With over 120 active clients and 150

projects to our credit, we continue creating innovative solutions to drive business

growth. Our working process involves four crucial steps- research, brainstorming

ideas, optimization, and achieving the target.

We deliver cutting-edge technology-driven solutions for your business including

ROI-driven marketing campaigns, online branding, and communications,

customized mobile application development, and more which are designed bearing

in mind your business requirement.

Job Description: Node JS Developer ( JD 102)

No of Position : 45

• Programming in Node.js

• Experience with server-side templating languages

• Experience with Express.js, Loopback, Sails JS, Meteor.js or other

frameworks.

• Experience consuming and building robust, SOAP and REST ful APIs

• Experience with Relational Databases like Mongo DB, MySQL

• Solid understanding and extensive experience with version controltools like

Git, SVN or Mercurial

• Exceptional problem solving and ability to work independently

• Exceptional learning skills

• Understanding of Agile methodologies

• Knowledge of writing efficient codes.

• Understanding front-end applications.

• Working with authorization and authentication of the user.

• Having error-handling skills.

• Creating database schemes and many more.

• Using third party with services with developed system.

Basic Requirement

• A Bachelor’s Degree in computer Science, Computer Engineering, Electrical

Engineering or equivalent.

• Minimum of 2+ years’ Experience in Software Development Organisation

required.

• Strong Communication skill and problem solving skill

• Ability to take ownership of work stream, operate without close supervision

and work across the organisation

• Self-discipline in order to finish work on a timely basis.

• Highly proficient in JavaScript and Typescript, PassportJs, Sequelize.
• Working knowledge of Node.js frameworks such as ExpressJs, SailsJs, VueJs and  ElectronJs.
• Good understanding of server-side templating languages such as Jade, EJS, Mustache etc.
• Good understanding of server-side CSS preprocessors such as Stylus, Less,Sass etc.
• Basic understanding of front-end technologies, such as HTML5, and CSS3
• Sound knowledge of Testing frameworks such as Mocha, Chai, Jasmine, Cucumber etc.
• Experience of writing unit, integration and E2E tests.
• Experience of working with SQL databases.
• Experience of integrating third party APIs.
• Good understanding of code versioning tools, such as Git.
• Good Communication Skills.

 Roles & Responsibilities -

• Build and maintain infrastructure for data retrieval, processing and storage
• Build strong working relationships with international teams
• Be willing and able to adapt to changes in priorities
• Ability to learn and apply new technologies to deliver added business value
• Maintain a strong focus on quality

• Proficient in Python / SQL
• Good understanding of data base management systems
• Experience developing and maintaining systems that handle large amounts of data
• Understanding of Electronic Trading Systems
• Attention to detail and code quality
• Excellent problem solving and analytical skills in a high-pressure environment
• Strong communication skills and an ability to convey ideas and concepts with clarity