Backend Developer - MERN Stack

Responsibilities:

● Design, develop, and maintain scalable backend services and APIs using Java and Spring

Boot.

● Create and optimize SQL database schemas and queries in PostgreSQL to ensure efficient

data storage and retrieval.

● Implement RESTful APIs to facilitate seamless communication between frontend and backend

components.

● Configure and manage Nginx web servers to efficiently handle incoming requests and improve

application performance.

● Deploy and manage applications on AWS or GCP, ensuring scalability, reliability, and

security.

● Configure and optimize message broker systems using Kafka for real-time data processing

and communication.

● Containerize applications using Docker for easy deployment, scaling, and management.

● Create detailed Low-Level Designs (LLDs) and High-Level Designs (HLDs) to guide the

development and architecture of backend systems.

● Automating CI/CD pipelines and streamlining the software development lifecycle.

● Integrate AI/ML models into backend workflows using Python, PyTorch/TensorFlow, or

third-party AI APIs.

● Leverage AI tools (e.g., OpenAI APIs, Hugging Face, AWS AI services) to build intelligent

features.

● Collaborate closely with frontend developers, product managers, data scientists, and other

stakeholders to deliver high-quality AI-powered solutions.

● Monitor and troubleshoot production systems to ensure optimal performance, reliability, and

uptime.

What We’re Looking For:

● Bachelor’s degree in Computer Science, Engineering, or related field.

● 3-5 years of experience in backend development.

● Proficiency in Java, Spring Boot, PostgreSQL, SQL, and GitActions.

● Strong understanding of RESTful API design principles and best practices.

● Experience with configuring and optimizing Nginx web servers.

● Experience with configuring and optimizing Kafka service.

● Hands-on experience with AWS or GCP.

● Familiarity with Docker containers and container orchestration.

● Ability to create comprehensive Low-Level Designs (LLDs) and High-Level Designs (HLDs)

for backend systems.

● Experience with Python for AI/ML model integration in backend services.

● Familiarity with AI platforms and APIs such as OpenAI, Hugging Face, AWS AI/ML, or GCP

Vertex AI.

● Excellent problem-solving skills and attention to detail.

● Strong communication and collaboration skills, with the ability to work effectively in a team

environment.

Preferred Qualifications:

● Knowledge of microservices architecture and related technologies.

● Experience with cloud-native development and serverless computing.

● Understanding of software development best practices, including Agile methodologies

Job Description:

Look for candidates who are preferably immediate joiners and have stability in career

Skills - DS Algorithms, Oops Concept,

Job Brief-

·       Understand product requirements and come up with solution approaches

·       Build and enhance large scale domain centric applications

·       Deploy high quality deliverables into production adhering to the security, compliance and SDLC guidelines

Wissen Technology is hiring for Java Tech lead

Required:

• 8-10 years of industrial experience
• Java and related frameworks.
• Experience in Core Java 1.8 and above, Data Structures, OOPS, Multithreading, Microservices, Spring and Swift Payments
• Exposure on Fintech domain is mandatory
• Should have the ability to analyse, design, develop and test complex, low-latency client-facing applications.
• Good development experience with RDBMS
• Good knowledge of multi-threading and high volume server side development
• Excellent problem solving and coding skills in Java
• Strong interpersonal, communication and analytical skills.

Company Profile:

Company Name : Wissen Technology

Group of companies in India : Wissen Technology & Wissen Infotech

Work Location - Bangalore

Website : www.wissen.com

Wissen Thought leadership : https://www.wissen.com/articles/

LinkedIn: https://www.linkedin.com/company/wissen-technology

• At least one year experience with PHP or NodeJS.
• Experience with at least one Relational database like MongoDB, MySQL or NoSQL
• Experience with multiple PHP frameworks will be plus(e.g Wordpress, Laravel, Codeigniter,Symfony, cakePHP)
• Proficiency with multiple PHP Frameworks.
• Proficiency designing and building APIs.
• Comfortable in a work environment that requires strong problem-solving skills and independent self-direction coupled with team collaboration and open communication
• Thorough knowledge of Ajax, Javascript, HTML,CSS and other web technologies XHTML and HTML5 coding is desirable.
• Experience in both Linux and Windows environment development. Understanding of RESTful web services.
• Work in a fast-paced, creative atmosphere to develop new ideas that adapt to evolving user needs
• Experience using Git / GitHub. Excellent communication skills      

1. Very Strong hands-on knowledge of core PHP, MySql
2. Very Strong knowledge of JSON, JQuery, AJAX, HTML-5 CSS-3, JavaScript, Bootstrap
3. Very Strong knowledge of responsive websites
4. Knowledge of WordPress (added advantage)
5. Strong knowledge of cross-platform integration with various platforms
6. Excellent logical and analytical skills
7. Strong knowledge of IDEs being used in PHP development
8. Knowledge of PHP Frameworks will be an added advantage.
9. Strong knowledge and hands-on Oops concepts and MVC Design Patterns
10. Good knowledge of Data structures and algorithms.
11. Strong communication skills

Node.js Developer Responsibilities:

• Developing and maintaining all server-side network components.
• Ensuring optimal performance of the central database and responsiveness to front-end requests.
• Collaborating with front-end developers on the integration of elements.
• Designing customer-facing UI and back-end services for various business processes.
• Developing high-performance applications by writing testable, reusable, and efficient code.
• Implementing effective security protocols, data protection measures, and storage solutions.
• Running diagnostic tests, repairing defects, and providing technical support.
• Documenting Node.js processes, including database schemas, as well as preparing reports.
• Recommending and implementing improvements to processes and technologies.
• Keeping informed of advancements in the field of Node.js development.

Node.js Developer Requirements:

• Bachelor's degree in computer science, information science, or similar.
• At least 4 years' experience as a Node.js developer.
• Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
• Knowledge of front-end technologies such as HTML5 and CSS3.
• Superb interpersonal, communication, and collaboration skills.
• Exceptional analytical and problem-solving aptitude.
• Great organizational and time management skills.
• Availability to resolve urgent web application issues outside of business hours.

Must have 1+ Years of experience.

Location: Apart from the East Indian States it will be permanent work from home.

ROLES AND RESPONSIBILITIES

• Lead the Software Team. Ensure consistent deliveries of planned features while ensuring code quality, testing standards, and processes are maintained.

• Work with the leadership team to cultivate and grow the Internal Software Team Culture at

• Work across the full stack, building highly scalable distributed solutions that enable positive user experiences and measurable business growth

• Ensure application performance, uptime, and scale, maintaining high standards of code quality and thoughtful application design.

• Solve technical problems of high scope and complexity.

• Exert influence on the overall objectives and long-range goals of your team.

• Experience with performance and optimization problems, particularly at a large scale, and a demonstrated ability to both diagnose and prevent these problems.

• Help to define and improve our internal standards for style, maintainability, and best practices for a high-scale web environment. Maintain and advocate for these standards through code review.

CANDIDATES MUST HAVE

• Experienced in designing and integrating RESTful APIs

• Knowledge of Python

• Excellent debugging and optimization skills

DESIRED SKILLS & EXPERIENCE

• 3-5 years of experience building large-scale software applications and working with large software teams.

• Bachelor’s degree in computer science, information technology, or engineering • Experience designing and integrating RESTful APIs

• Knowledge of Python and Backend Development

• Experience building Web/Mobile applications

• Excellent debugging and optimization skills

• Unit and Integration testing experience

• Being knowledgeable about engineering processes and good practices

• Passionate about learning new tools. Ability to continuously learn and acquire knowledge.

• Able to adapt to changing complexity of tasks.

Backend - Software Development Engineer-III

Responsibilities:-

• Research, design and build highly reliable, available and scalable platforms
• Explore design implications and work towards an appropriate balance between functionality, performance, and maintainability.
• Lead by example, mentor and guide team members on everything from structured problem solving to development of best practices
• Own large technical deliverables and execute in an exemplary way
• Be able to conceptualize and develop prototype quickly
• Working with a cross-discipline team of Design, Product, Data Science and Analytics team.
• Active participation in the hiring process to bring quality engineers in the team.

Requirements:-

• Strong proficiency in Javascript and TypeScript
• Strong proficiency of Node.js and frameworks available for it such as Express
• Strong understanding and experience of creating highly scalable and complex database design
• Good understanding of Data Modeling using RDBMS and NoSQL(Cassandra, MongoDB, ElasticSearch, Redis) data stores
• Strong problem-solving skills with a good understanding of data structures and algorithms
• Strong understanding of front-end technologies, such as HTML5, and CSS3
• User authentication and authorization between multiple systems, servers, and environments
• Experience of creating highly scalable, fault tolerant, resilient distributed systems
• Strong knowledge of creating scalable system design and good understanding of microservice based architectures
• Understanding of caching enabled, PubSub and event driven architectures
• Hands on experience and good knowledge of AWS services
• Understanding automated testing platforms like selenium and unit tests like Chai, Mocha, Jasmine etc
• Proficient understanding of code versioning tools, such as Git
• E/B.Tech/M.E./M.Tech/M.S.
• Curiosity to explore the cutting edge technologies and bake them in the products.
• Zeal and drive to take end to end ownership.
• 5+ years of experience in back end development preferably in microservice environment.