Fullstack Java Developer

Job Title: Golang Developer

Location: Kolkata

Job Type: Full-time

Working Days: 5 Days (Rotational off)

About the Role:

We are seeking a skilled Golang Developer with experience in Golang, Node.js, WebSocket

communication, and API development. In this role, you will work closely with our development

team to design, develop, and maintain high-performance backend systems and real-time

applications.

Key Responsibilities:

 Design, build, and maintain efficient, reusable, and reliable Golang code.

 Develop scalable APIs and microservices.

 Integrate and build real-time communication using WebSocket protocols.

 Collaborate with frontend developers and other team members to establish objectives

and design more functional, cohesive systems.

 Write clean, maintainable, and well-documented code.

 Optimize applications for maximum performance, scalability, and security.

 Participate in code reviews, contribute to team knowledge, and continuously improve

development processes.

 Troubleshoot, debug, and upgrade existing systems.

 Occasionally work with Node.js services and modules when needed.

Required Skills and Qualifications:

 Min 3+ years of experience in backend development with Golang.

 Solid understanding of Node.js and JavaScript/TypeScript.

 Hands-on experience with WebSocket integration and real-time applications.

 Strong knowledge of RESTful APIs, API design principles, and API documentation. Experience with relational and NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB).

 Good understanding of concurrent programming and microservices architecture.

 Familiarity with cloud platforms (AWS, GCP, Azure) is a plus.

 Knowledge of containerization tools like Docker and Kubernetes is a plus.

 Strong problem-solving skills, attention to detail, and a proactive attitude.

About Us

Classplus is India's largest B2B ed-tech start-up, enabling 1 Lac+ educators and content creators to create their digital identity with their own branded apps. Starting in 2018, we have grown more than 10x in the last year, into India's fastest-growing video learning platform.

Over the years, marquee investors like Tiger Global, Surge, GSV Ventures, Blume, Falcon, Capital, RTP Global, and Chimera Ventures have supported our vision. Thanks to our awesome and dedicated team, we achieved a major milestone in March this year when we secured a “Series-D” funding.

Now as we go global, we are super excited to have new folks on board who can take the rocketship higher🚀. Do you think you have what it takes to help us achieve this? Find Out Below!

What will you do?

• Connect the dots between business goals and consumer problems through product development
• Solve the most challenging problem of scaling and business logic
• Design and develop services using test driven development with near 100% code coverage
• Develop and deploy services continuously using CI/CD on a daily basis
• Identify and own meaningful metrics for success and move them dramatically.
• Prepare and present management updates on key initiatives. Communicate clearly at all levels in the organization.
• Conduct multivariate experiments to constantly validate hypotheses and bash all the myths

You should apply, if you

• Display expertise: Have strong proficiency with Nodejs, My SQL, MongoDB and Caching and with code versioning tools, such as Git
• Can improvise: Understand the nature of asynchronous programming and its quirks and workarounds
• Showcase all round knowledge: Understand accessibility, security compliance, user authentication, and authorization between multiple systems, servers, and environments
• Can simplify: Can integrate multiple data sources and databases into one system. This also includes creating database schemas that represent and support business processes, and can implement unit tests
• Can figure out the basics: Understand fundamental design principles behind a scalable application

Being a Part of the Clan!

At Classplus, you’re not an “employee” but a part of our “Clan”. So, you can forget about being bound by the clock as long as you’re crushing it workwise😎. Add to that some passionate people working with and around you, and what you get is the perfect work vibe you’ve been looking for!

It doesn’t matter how long your journey has been or your position in the hierarchy (we don’t do Sirs and Ma’ams); you’ll be heard, appreciated, and rewarded. One can say, we have a special place in our hearts for the Doers! ✊🏼❤️

Are you a go-getter with the chops to nail what you do? Then this is the place for you.

Backend Web Developer

 Our client operates from 18 cities across 13 countries. Our investment personnel manage US $247 billion across a wide range of global, regional and country-specific strategies - both traditional and alternative - in listed equity and fixed income. At Lazard Asset Management, we pride ourselves in balancing the feel of a small firm with the scale of a large global organization. Our entrepreneurial culture and flat management structure foster an environment in which good ideas can take flight, no matter where they come from.

Our client is looking for an innovative software engineer to join our IT department.  This individual will be working on the systems that support the global sales and marketing organization.  This role will be responsible for building and supporting the backend services and API’s used in all of the applications. This role requires a highly motivated, organized and experienced developer with pride of ownership reflected through clean design, code quality and a disciplined software development approach.

Key Responsibilities

• Design and implement middle-tier web applications, and RESTful services.
• Collaborate with front-end developers to integrate user-facing elements with server side logic.
• Support existing software with quick troubleshooting and issue resolution.
• Be part of an empowered team following agile methodologies.

Desired Candidate Profile:

• 5+ year’s applications development experience with full-stack development and agile frameworks.
• Strong understanding of object-oriented programming and service-oriented design.
• Work effectively both as a contributing team member and independently.
• Strong verbal and written communication skills.
• Creative problem solving with the ability to present multiple solutions and potential side effects.
• Fast paced programming mentality with quick turnaround.

Required Skills:

• Expertise with API creation and RESTful services.
• Expertise developing backend server components using Python, NodeJS, C#
• Expertise building micro service architecture.
• Experiencebuilding and supporting websites using CMS systems (Tridion, Drupal, AEM)
• Experience and proficiency with relational databases (SQL Server, Oracle, Sybase).
• Experience and proficiency with NoSQL databases (MongoDB, Cassandra).

Desired Skills:

• Experience running services on container technologies like Kubernetes and Docker.
• Amazon AWS or equivalent cloud architecture experience with a major cloud provider.
• Experience with Jira.
• Experience building CI/CD pipelines using Jenkins or TeamCity.
• Experience with CRM systems especially Salesforce is a plus.

• 3-8+ years of experience programming in a backend language (Java / Python), with a good understanding of troubleshooting errors. 
• 5+ years of experience in Confluent Kafka / 3+ years of experience in Confluent Kafka 

• Cloud Kafka, Control Central, Rest Proxy, HA Proxy, Confluent Kafka Connect, Confluent Kafka Security features 

Position : Backend Developer – SDE3 : Java/Nodejs

As part of the engineering team, you would be expected to have deep technology expertise with a passion for building highly scalable products. This is a unique opportunity where you can impact the lives of people across 150+ countries!

Responsibilities

● Own architecture, design, development, and implementation of different modules/features of the services

● Design, develop, deploy and support web applications.

● Bring in industry best practices

● Discover opportunities for performance improvements

● Recommend ways to improve reliability, efficiency and code quality

● Focus on continuous delivery and reducing complexity

● Carry out code reviews and manage pull requests within the mobile application development team

● Build applications based on micro-services architecture

Requirements

● Overall 5+ years of experience in Backend development (Java or Nodejs).

● B.E/B.Tech in CS or equivalent streams from institute of repute (IITs, NITs, BITs, IIITs or equivalent)

● Strong object oriented design skills & knowledge of design patterns

● Experience in working with data platform & data lake pipeline building is preferred.

● Experience designing & developing distributed systems involving multiple web services, databases (both SQL and NoSQL), caches, queues, etc. taking into consideration scalability, availability, fault tolerance, consistency, etc. of the overall system

● Well-aware of and enforces development best practices: Unit Tests, Code Reviews, Integration Tests, CI/CD, Monitoring, Alerting, etc

Technologies

Must have                         Core JAVA, J2EE, Multithreading, OOPS, and Multiprocessing

Great to have                   RabbitMQ, Netty, XML, JSON, Messagepack

Huge Advantage:             Good at mathematics, statistics, complex data structures, algorithms, and design patterns

Other skills

• Ability to understand most complex and challenging problems and solve them from users’ view point
• Ability to create and present software designs (as per the aligned solution) to the product owner
• Ability to build and create modules from scratch.
• Ability to write, understand and deal with large code base
• Experience in understanding and implementing design patterns
• Ability to provide technical leadership to a team of equally talented, efficient and motivated engineers

Roles and responsibilities

• Responsible for solving the most complex and seemingly impossible problems related to variety of dimensions of software engineering. Dealing with Big Data to Complex Data Structures, From Inter Process Communication to sub 100 MilliSec server responses, From Distributed Systems to 99.999 Availability.
• Responsible for providing technical leadership to a team of 3-4 Engineers
• Responsible to drive delivery of a project/module and report to Product Owner
• Responsible for functional/technical tracking of a project/module

Responsibility Split

• 80% Technology, 20% Team management
• With 80:20 split this is definitely a technology oriented role suitable for geeks.