JAVA Developer

Company Name – Wissen Technology

Group of companies in India – Wissen Technology & Wissen Infotech

Work Location - Senior Backend Developer – Java (with Python Exposure)- Mumbai

Experience - 4 to 10 years

Kindly revert over mail if you are interested.

Java Developer – Job Description

We are seeking a Senior Backend Developer with strong expertise in Java (Spring Boot) and working knowledge of Python. In this role, Java will be your primary development language, with Python used for scripting, automation, or selected service modules. You’ll be part of a collaborative backend team building scalable and high-performance systems.

Key Responsibilities

• Design and develop robust backend services and APIs primarily using Java (Spring Boot)
• Contribute to Python-based components where needed for automation, scripting, or lightweight services
• Build, integrate, and optimize RESTful APIs and microservices
• Work with relational and NoSQL databases
• Write unit and integration tests (JUnit, PyTest)
• Collaborate closely with DevOps, QA, and product teams
• Participate in architecture reviews and design discussions
• Help maintain code quality, organization, and automation

Required Skills & Qualifications

• 4 to 10 years of hands-on Java development experience
• Strong experience with Spring Boot, JPA/Hibernate, and REST APIs
• At least 1–2 years of hands-on experience with Python (e.g., for scripting, automation, or small services)
• Familiarity with Python frameworks like Flask or FastAPI is a plus
• Experience with SQL/NoSQL databases (e.g., PostgreSQL, MongoDB)
• Good understanding of OOP, design patterns, and software engineering best practices
• Familiarity with Docker, Git, and CI/CD pipelines

Unico Connect is a forward-thinking technology company dedicated to pushing the boundaries of what's possible in the digital world. We are seeking an experienced Senior Node.js Developer to join our team. In this role, you will work on a wide range of exciting projects, from building robust backend systems with Node.js to exploring NoCode platforms and integrating AI tools & solutions. 

Responsibilities

1. Node.js Development: Design, develop, and maintain backend systems and RESTful APIs using Node.js. Ensure scalability, performance, and reliability of server-side applications.
2. Relational Databases: Work with relational databases (e.g., PostgreSQL, MySQL) to design, create, and optimize database structures, and implement data models.
3. NoCode Platforms: Collaborate with cross-functional teams to explore and evaluate NoCode platforms for rapid application development and automation.
4. OpenAI API Integration: Utilize OpenAI APIs to integrate language generation and understanding capabilities into our applications.
5. Language Model Exploration: Perform exploratory tasks related to Language Models, such as creating and fine-tuning models, and experimenting with various use cases.
6. Performance Optimization: Identify and resolve performance bottlenecks and ensure the efficient use of resources.
7. Security: Implement best practices for data security and access control, including user authentication and authorization.
8. Documentation: Maintain detailed technical documentation, including API documentation and database schemas.
9. Code Reviews: Participate in code reviews and mentor junior developers to ensure code quality and best practices are followed.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent experience).
• 4+ years of proven experience as a Node.js developer with a strong portfolio of relevant projects.
• Solid experience with relational databases, including database design and SQL.
• Familiarity with NoCode platforms or a willingness to learn and adapt to new technologies.
• Experience working with cloud services such as AWS or GCP, setting up instances, deploying applications. 
• Experience in implementing API caching using Redis or similar.  
• Understanding of OpenAI APIs and a strong interest in Language Model technologies.
• Proficiency in JavaScript and server-side scripting.
• Strong problem-solving skills and attention to detail.
• Excellent communication and teamwork skills.
• Ability to work in a collaborative, fast-paced environment.

Nice to Have

• Knowledge of containerization and orchestration technologies (e.g., Docker, Kubernetes).
• Experience with GraphQL.
• Experience with implementing queue management systems such as RabbitMQ, Kafka, SQS.
• Previous experience working with natural language processing (NLP) technologies.
• Knowledge of DevOps and CI/CD practices.

Skills

• Node.js
• JavaScript
• Express.js
• MongoDB
• RESTful

Position: Backend Developer

Organization: A Funded global healthcare platform connecting doctors, thereby enabling exchange of information on a quick and real time basis, founded in the year 2013.Currently there are 3 lakh doctors using this platform and everyday there are 400 new doctors joining it.

The platform promotes exchange of viewpoints, ideas, and information on various medical practices amongst healthcare professionals. This saves both time and money as solutions to several health issues can be accessed on a real time basis. There are 1.3 million registered doctors and 400+ daily publications on its platform and they operate across 16+countries.

Roles & Responsibilities

You’re Awesome At -

• Have strong experience in Python (FLASK framework).
• Have a Deep understanding of how RESTful APIs work.
• Familiar with various design and architectural patterns that can work at scale.
• Sound knowledge of NoSQL/SQL Databases (Mongo DB preferred).
• Strong experience with at-Cloud technology, preferably AWS or GCP, or Azure.
• Core experience in developing complex backend systems.
• Ability to communicate complex technical concepts to both technical and non-technical audiences.
• Passionate about application scalability, availability, reliability, and security.

Your Academic Qualifications -

BE/BTech in Computer Science preferred.

You’ll Be Improving & Responsible For –

• A team that is building products used by 300k + doctors every single day.
• Work on PetaByte Scale Streaming Systems - more than 500 million hours of video have been streamed.
• Lead high volume VOD streaming (think of systems as sophisticated as Netflix and Amazon prime).
• Challenge oneself on Security, Scalability, and Stability
• Maintain code and write automated tests to ensure the product is of the highest quality.
• Reach out to the open-source community to encourage and help implement mission-critical software fixes

Your Experience Across the Years in the Roles You’ve Played -

2-4 Years of experience in Backend Development.

• - 5+ Years working experience as Java Development
• - Hands on using Microservices
• - Extensive experience on Spring boot / spring
• Primary Skill: Java, Microservices

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Desired Skills

1. Expereience in C#, Web API, .NET (Core and Framework), SQL Server.
2. Leading a team designing and implementing software solutions using the Microsoft Azure stack primarily, with scope to also work with open-source technologies.
3. Designing, building, testing, automating, monitoring, and supporting significant components within a modern digital service platform.
4. Helping to build and lead an effective, cross-functional squad practicing agile ways of working (Scrum, DevOps, Design Sprints) in tight collaboration with local and remote teams
5. Microservices and server less architecture with service fabric, functions and API apps, service bus.
6. Visual Studio, Visual Studio Code and GIT, Azure CLI (Cloud Shell), Azure DevOps.
7. Expertise in with Azure Active Directory, VNETs, NSGs, ASGs, OAuth and OpenID Connect, Azure traffic manager, CDN, App Gateway and load balancers.
8. Hands on experience of executing cloud native projects in Azure with DevOps

• 10 + years of experience and expertise in database and systems architecture design, development and implementation;
• Expertise and experience in data structures, indexing, query, and retrieval;
• Excellent data management skills including ensuring data integrity, data access, security and archiving procedures;
• Knowledge of the language technology and video extraction research domains to be able to converse fluently with the research communities to transform research requirements into concrete formalisms.
• Experience in cross platform development for multiple variants of Unix, Linux including 32 and 64 bit
• Experience with NoSQL, SQL databases, statistics and algorithms
• Strong oral and written communication skills
• Design, implement and test novel database architecture designs to accommodate the multimodal data types used in Client managed technology evaluations
• Administer and monitor database and address data security solutions as applicable
• Design and develop efficient techniques for fast, optimized data access and transfer of distributed or networked database systems
• Design, implement and test novel data structures, data search, query and retrieval solutions to enable access to and processing of the multimodal data types used in Client managed technology evaluations

Today, MoEngage is an industry pioneer in the space and engages more than 350M devices. This includes approximately 40B events tracked per month, 30B+ messages sent, to millions of users across the globe.

As part of the Engineering team at MoEngage, here are some things you can expect:

• Take ownership and be responsible for what you build - no micro management
• Work with A players (some of the best talent in the country), and expedite your learning curve and career growth
• Make in India and build for the world at scale of 350M active users, which no other internet company in the country has seen
• Learn together from different teams on how they scale to millions of users and billions of messages. 
• Explore the latest in topics like Data Pipeline, MongoDB, ElasticSearch, Kafka, Spark, Samza and share with the team and more importantly have fun while you work on scaling MoEngage.

Skills required:

- Minimum 2 year experience in Android Development

- Good understanding of Java Programming language

    - OOPs concepts

    - Multi-threading

- Good understanding of Android Framework

    - Framework Components

    - Data Storage/Persistence

    - Offline support for application

    - Rest APIs

Good to Have:

- Knowledge and understanding of Kotlin

- Experience in building dynamic UI

- Knowledge of hybrid frameworks like React-Native/Cordova/Xamarin/Flutter, etc.