NodeJS Developer

Experience: 3 to 5

Location: Bangalore

Wissen Technology is now hiring for a Senior Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the 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. 

Required Skills:

• Exp. - 3 to 5 years
• Experience in Core Java and Spring Boot.
• Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should have the ability to analyze, design, develop and test complex, low-latency client- facing applications.
• Good development experience with RDBMS.
• Good knowledge of multi-threading and high-performance server-side development.
• Basic working knowledge of Unix/Linux.
• Excellent problem solving and coding skills.
• Strong interpersonal, communication and analytical skills.
• Should have the ability to express their design ideas and thoughts.

About Us:

At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide.

Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality. 

We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more. 

Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients the flexibility to adapt to their evolving business needs. Whether it’s AI/ML for unstructured data processing, cloud enablement, or data engineering, Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our proprietary Interview Ninja platform ensures we hire the best, building high-performing teams that deliver unmatched results. 

Today, Wissen Technology has a global footprint with 2200+ employees across offices in the US, UK, UAE, India, and Australia. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.

Website : www.wissen.com 

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.

Responsibilities and Duties:

• Expert in Python, with knowledge of Python web framework - Django
• Familiarity with backend automated testing tools and frameworks
• Experience with backend/API development
• Architect, develop and maintain backend libraries/codebase, database & server.
• Develop object-oriented software, with mastery of one or more relevant languages (Django).
• Evaluate competitive and innovative products and design approaches to identify best practices and encourage innovation.
• Understanding the requirement of a client, document the scope and chart out a plan of implementing the scope
• Work with design team to give inputs related to the wire-frames and then the design along with incorporating Client Feedback
• Explore the difference between B2B and B2C projects before implementing the code
• Work in teams of 2-3 on various projects as per the requirement using git as version control
• Having good knowledge of APIs creation and database architecture
• Good Grasp in respective technology (Django)
• Documenting the process and main functions along the developing process
• Design and develop highly scalable, highly available, reliable, secure, and fault-tolerant systems with minimal guidance for one of the fastest-growing companies in India.

Required Experience, Skills and Qualifications:

• 3-5 years of experience required
• Strong hand on Django-Python
• Excellent knowledge of using the Git version control system and deployment via Git.
• You have creative visualization, critical thinking, deductive & pragmatic reasoning and can think out-of-the-box
• Ability to quickly adapt & independently work in a fast-paced Agile environment with minimum supervision.
• A self-starter with demonstrated ability to take initiative, who can proactively identify issues/opportunities and recommend action.

Job Description

• Java engineer with 6-8 years of experience , person with strong Java, spring core, Springboot, Rest API , Microservices hands-on experience.
• Knowing Kafka is a plus.
• Well versed with CICD, Agile processes . good attitude, good communication skills.

Role

• Code development, testing, team coordination,
• Open to work on non-tech activities along with coding also.
• Should be ready and flexible to work from Impetus office and customer office as per the requirement of project.

About the role: In this role, you will be responsible for the end-to-end development of software solutions related to banking, payments, investments, wallets, and other fintech products. You will work closely with software engineers, test engineers, researchers, designers, and the management team.

You will be responsible for enforcing software development best practices in a fast-paced Agile/DevOps environment, while always focusing on delivering high-value. In the process, you will work with primarily fintech technologies and other distributed systems-related tools,
techniques and methodologies.

If you want to join an early-stage startup that values you and your skills, and gives you the freedom to work at your pace while delivering a fantastic all-in-one financial app for all Indians, this is the perfect role for you.

About us: Mool is an all-in-one financial app where you can save, spend and invest your money with confidence. We understand that everyone deserves a good relationship with their money and growing your wealth should not be a difficult process. To help you gain financial freedom, we bring together champions of the financial service industry to champion you with best-in-class products.

Our ideal candidates will:
• Be highly experienced in Golang. So, if you have at least 1 year of active golang development experience, we want you!
• Have a good understanding of the MVC framework and also proficiency in using advanced JavaScript libraries and frameworks such as ExpressJS, FastifyJS and other backend and frontend frameworks
• Understand and experience with cloud technologies: AWS (Must have) and Azure.
• Be knowledgeable in code versioning tools and dev ops methodologies such as Git.
• Highly experienced with various databases such as MongoDB, PostgreSQL, MYSQL
• Have worked on Relational Database and can figure out where to add Indexes in DB to optimise the performance
• Know how Cache Layer works (e.g. Redis)
• Have experience with queuing services and frameworks such as KafkaRabbit MQ. We prefer it if you have experience with fintech systems and applications
• Expected to have a good understanding of security practices for financial systems.
• Have experience in writing Unit and E2E test cases
• Have experience with Network Security or Ethical Hacking
• Experience with integrating banking APIs

Roles and responsibilities:
• Take an active part in the design process of the architecture of the mobile application
• Maintain quality and ensure responsiveness of applications
• Collaborate with the rest of the engineering team to design and launch new features
• Maintain code integrity and organization
• Working with the design team to convert designs to visual elements
• Implement security and data protection systems and processes to ensure information security compliance
• Oversee full software development lifecycle for the product

What You'll Do:

• Understand the upcoming development requirement of product in depth.
• Design product architecture as per vision, insights and concurred direction.
• Design and develop the APIs using Java, Spring, and Hibernate required for the product and expose them to be used by the front-end developers.
• Design the database and tables in MySQL/PostGreSQL/NoSQL (whichever is suitable for the need of the product) and guide the team to utilize them in the best possible way.
• Get involved in continuous maintenance of the product and get the bugs fixed in time.
• Coordinate the workflow between the UX Designers and front-end developers.
• Work on integrating flows with external tools - Segment, Branch, Clevertap.

Ideal Profile:

• Proficiency in Core Java & Spring framework.
• Expertise in Web Service technologies.
• Experience in building the architecture as per the product’s need.
• Experience in building REST APIs using Java/Spring.
• Excellent knowledge in Databases and code integrations such as Postgres SQL, SQL Server, MySQL.
• Experience in full life cycle development of a product (specifically mobile products) is a plus.
• Experience with Java/Spring-Boot, Hibernate Cloud Services, AWS.
• Experience with security principles and frameworks.
• Knowledge of modern authorization mechanisms, such as JSON Web Token and OAuth2 - Familiarity with code versioning tools (primarily Git).
• Essential skills are Core Java/J2EE, functional aspects, Spring Framework, Tomcat, SVN, Git, Postman/Newman.
• Should have worked in Agile methodologies.
• Good object-oriented and problem-solving skills.
• Strong communication skills along with the ability to work in a highly collaborative environment.

• Well versed in Core Java, OOPs concepts, collections, multi-threading, concurrency, lambdas, and streams.
• Hands-on knowledge of Spring Core, MVC, JPA, Security, transaction
• Working knowledge of REST API designing as well as development, using Spring.
• Exposure to Spring Boot, Docker, Kubernetes, OpenShift for the microservices environment.
• Savvy with SQL and database concepts.
• Ability to use frameworks like JUnit, Mockito, etc., for implementing unit testing.
• Sound understanding of code versioning tools, such as Git/bit bucket with Maven.
• Should have worked in a CI/CD environment with TeamCity/Jenkins.