Software Development Engineer II - Node.JS

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

Java Technical Lead

We are solving complex technical problems in the financial industry and need talented software engineers to join our mission and be a part of a global software development team.

A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.

Experience: 10+ years

Location: Mumbai

Job Description:

• Experience in Core Java, Spring Boot.

• Experience in microservices.

• Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns.

• Should be able to analyze, design, develop and test complex, low-latency client-facing applications.

• Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2

• Good knowledge of multi-threading

• Basic working knowledge of Unix/Linux

• Excellent problem solving and coding skills in Java

• Strong interpersonal, communication and analytical skills.

• Should be able to express their design ideas and thoughts.

About Wissen Technology: Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals.

Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’.

Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world.

Wissen Technology offers an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.

We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.

Job Profile:-

We’re in search of a Back-End Software Engineer that specializes in server-side components. In this role, you’ll primarily work on Node JS, Mongo DB, Redis, building scalable products and will bring a depth of knowledge on algorithms and data structures. As a Back-End Software Engineer, on any given day you might be architecting new features for our customers, refactoring existing code to be more scalable, and seeing changes through to completion in a live environment.

Key Attributes you need to possess: -

- Prioritization- Should have a strong work ethics and show up on time at sessions with excellent skills in predicting the amount of time needed to plan, coordinate, and perform on a task or managing their clients as and when required.
- Quick Learning Ability- You should be an amazing self-learner who has the ability to learn new technology on their own and are not threatened by new technologies. Someone who has an ability to pull various bits of information and to process information on the fly with good logical and analytical skills.
- Deep and Broad Technical Experience- Someone who is able to hit the ground because they already know the right technology.They should be able to meet coding principles and write code that is readable and commented-on where appropriate.Through incorporating their cognitive abilities and extensive industry experience, they are able to find optimal solutions easily.
- High-End User Focus-A good programmer does what they are asked to do, while a great programmer thinks of the end user of the software and works to solve problems within the organization’s
capabilities.Someone who knows the functionality they’re creating is of high value.
-Business Acumen- Should have a great eye for Business acumen as the product build will be exposed to millions of customers on-brand digital assets hence giving you exposure for handling a large user base in a live environment.
-Teamplayer- Someone who is able to work in a challenging environment and requires complete devotion, persistence and learning new things every day. As they will be involved in every fact of the product development starting from product ideation, Interface design, user experience, analytics, and engineering.

Typical work week look like:-

- Collaborating with the front-end developers and other team members to establish objectives and design more functional, cohesive codes to enhance the user experience.
- Design and implementation of scalable applications by using asynchronous programming with low-latency, high-availability, and performant applications between multiple systems, servers, and environments.
-Integration of data storage solutions by creating database schemas that represent and support business processes and also Integrating multiple data sources and databases into one system.
- Building reusable code and libraries for future use.
- Explore technical innovation and propose new solutions as and when required.
- Work with engineers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every month.


Our ideal candidate should have:-

- 4+ years of relevant experience in a Tech Startup
- A solid grounding in Computer Science fundamentals (based on a BE/BTech or MS in Information Technologies/Computer Science)
- Strong proficiency with JavaScript and knowledge of Node.js and frameworks.
- Strong hands on MongoDB and ability to write aggregation queries.
- Basic understanding of front-end technologies, such as HTML5, and CSS3.
- Hands-on on code versioning tools, such as Git, Redis, AWS, Sockets

Job DescriptionWe are seeking an experienced HubSpot CRM Developer to join our team. The ideal candidate will have a strong background in HubSpot development, integrations, and dashboard creation while working with cross-functional teams to optimize CRM functionality.

Key Responsibilities:●    Develop, customize, and optimize HubSpot CRM to meet business needs.

●    Integrate HubSpot with other technologies and external business intelligence tools like Power BI and Tableau.

●    Build and maintain dashboards and reports to support marketing, sales, operations, and finance teams.

●    Work with backend technologies (PHP, Python, Node.js, etc.) to implement integrations and automation.

●    High proficiency in JavaScript.

●    Develop and maintain scripts in any suitable scripting language to support CRM functionality.

●    Ensure seamless data flow and synchronization between HubSpot and external platforms.

●    Collaborate with multiple teams to understand data requirements and optimize CRM processes.

Requirements:●     7-10 years of relevant experience in HubSpot development and integration.

●    Strong expertise in backend development using any  PHP, Python, or Node.js.

●    High proficiency in JavaScript and any scripting languages.

●    Experience in HubSpot API integration with other platforms.

●    Proficiency in dashboard and reporting tools like Power BI and Tableau.

●    Ability to work independently (IC role) while collaborating with cross-functional teams.

●    Must have experience in handling end-to-end projects from scratch.

●    Exposure to multiple industries/domains is preferred (not limited to a single company for 5-10 years).

Must-haves

• Strong proficiency in NodeJS and JavaScript.

• Strong proficiency in top NodeJS frameworks like Express.JS (Simply Express), Feathers.JS, StrongLoop, Koa.JS, or Hapi.

• Good knowledge of SQL/NoSQL databases. Ability to develop services with polyglot persistence.

• Basic working knowledge of front-end technologies like HTML5 and CSS3.

• A strong presence of mind, excellent language, and communication skills.

Backend Developer 

About Us

It is a stealth mode startup founded by IIT/NIT alumni who held leadership positions in companies like MindTickle and Browserstack. We have a grand vision of disrupting how companies buy and sell from each other. We are working with early customers to build an enterprise-grade product that will be GA this year. It is backed by tier 1 VCs and angel investors from India and Silicon Valley.

Job Description

We are looking for a Backend Engineer to work closely with the founding team. We are looking for a developer responsible for managing the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end.

Responsibilities

1. Develop platform and infra stack from scratch
2. Writing reusable, testable, and efficient code
3. Compile and analyze data, processes, and codes to troubleshoot problems and identify areas for improvement.
4. Optimize application for maximum speed and scalability.
5. Implementation of security and data protection
6. Collaborating with the front-end developers and other team members to establish objectives and design more functional, cohesive codes to enhance the user experience.
7. Developing ideas for new programs, products, or features by monitoring industry developments and trends.
8. Recording data and reporting it to proper parties, such as clients or leadership.
9. Participating in continuing education and training to remain current on best practices, learn new technologies, and better assist other team members.
10. Taking lead on projects, as needed.

Technology Skills

1. Proven work experience as a NodeJs Backend developer and frameworks available with it like Express, Apollo Graphql. Typescript knowledge is a plus
2. In-depth understanding of the entire web development process (design, development and deployment)
3. Hands-on with various Infrastructure pieces like databases, message queues/brokers
4. Familiarity with Unit Testing Frameworks, UI Testing, Monorepos and Graphql principles
5. Knowledge of Alerting and Monitoring tools.
6. Implementing automated testing platforms and unit tests
7. Proficient understanding of code versioning tools, such as Git
8. Integration of multiple data sources and databases into one system.
9. Prior experience of the AWS cloud, knowledge about the Salesforce environment is a plus.
10. Excellent project and time management skills.

Soft Skills

1. Obsessed with best practices, structuring, documentation and have an eye for detail.
2. Self starter with a high level of drive and commitment.
3. High energy and drive to work in a startup environment.
4. Conceptual thinking, flexibility and ability to juggle with multiple responsibilities.
5. Ability to work under pressure and confidence to deal with complex issues.
6. Good communication skills.
7. Hands-on and detail oriented.

Location: Pune

Candidate profile : 3-6 years of experience in Backend Development