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Your Impact
- Build scalable backend services.
- Design, implement, and maintain databases, ensuring data integrity, security, and efficient retrieval.
- Implement the core logic that makes applications work, handling data processing, user requests, and system operations
- Contribute to the architecture and design of new product features
- Optimize systems for performance, scalability, and security
- Stay up-to-date with new technologies and frameworks, contributing to the advancement of software development practices
- Working closely with product managers and designers to turn ideas into reality and shape the product roadmap.
What skills do you need?
- 4+ years of experience in backend development, especially building robust APIS using Node.js, Express.js, MYSQL
- Strong command of JavaScript and understanding of its quirks and best practices
- Ability to think strategically when designing systems—not just how to build, but why
- Exposure to system design and interest in building scalable, high-availability systems
- Prior work on B2C applications with a focus on performance and user experience
- Ensure that applications can handle increasing loads and maintain performance, even under heavy traffic
- Work with complex queries for performing sophisticated data manipulation, analysis, and reporting.
- Knowledge of Sequelize, MongoDB and AWS would be an advantage.
- Experience in optimizing backend systems for speed and scalability.
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
Job Description:
We are seeking an experienced Java Back-end Developer to join our team. The ideal candidate
will be responsible for designing, developing, and maintaining robust and scalable back-end
solutions using Java and related technologies. The Back-end Developer will work closely with
cross-functional teams to deliver high-quality software solutions that meet our business needs.
Responsibilities:
Design, develop, and maintain Java-based back-end applications, services, and APIs.
Write efficient, reusable, and well-documented code following industry best practices
and coding standards.
Collaborate with front-end developers, product managers, and other stakeholders to
understand requirements and translate them into technical solutions.
Implement and maintain database schemas, write complex SQL queries, and optimize
database performance using Oracle SQL.
Develop and consume RESTful web services to enable seamless integration with
external systems.
Utilize Spring framework and its various modules (e.g., Spring Boot, Spring Batch) for
building enterprise-level applications.
Manage project dependencies and build processes using Maven.
Work with version control systems such as Git for code management and collaboration.
Perform unit testing, integration testing, and debugging to ensure the quality and
reliability of back-end components.
Stay updated on emerging technologies, trends, and best practices in back-end
development.
Additional Requirements:
Strong knowledge of application servers such as Tomcat and WebLogic.
Experience with continuous integration tools such as Jenkins.
Familiarity with automated testing frameworks such as JUnit.
Understanding of authentication and authorization mechanisms, including OAuth.
Knowledge of SOAP web services and related technologies.
Requirements:
Bachelor's degree in Computer Science, Engineering, or a related field.
5 Plus years of experience in Java back-end development.
Proficiency in Java programming language and related frameworks (e.g., Spring, Spring
Boot, Spring Batch).
Strong understanding of object-oriented programming principles, data structures, and
algorithms.
Experience with Oracle SQL and database design principles.
Familiarity with RESTful web services and API development.
Experience with build tools such as Maven.
Knowledge of version control systems, particularly Git.
Strong problem-solving skills and attention to detail.
Excellent communication and collaboration skills.
Ability to work effectively in a fast-paced, agile environment.
Preferred Qualifications:
Experience with other databases such as MySQL, PostgreSQL, or MongoDB.
Familiarity with continuous integration/continuous deployment (CI/CD) pipelines.
Understanding of software development best practices and design patterns.
At least 3 years' experience as a Node.js developer.
Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
Mandatory experience in MongoDB and MySql.
Knowledge of front-end technologies such as HTML5 and CSS3.
Superb interpersonal, communication, and collaboration skills.
Exceptional analytical and problem-solving aptitude.




CTC Budget: 35-55LPA
Location: Hyderabad (Remote after 3 months WFO)
Company Overview:
An 8-year-old IT Services and consulting company based in Hyderabad providing services in maximizing product value while delivering rapid incremental innovation, possessing extensive SaaS company M&A experience including 20+ closed transactions on both the buy and sell sides. They have over 100 employees and looking to grow the team.
- 6 plus years of experience as a Python developer.
- Experience in web development using Python and Django Framework.
- Experience in Data Analysis and Data Science using Pandas, Numpy and Scifi-Kit - (GTH)
- Experience in developing User Interface using HTML, JavaScript, CSS.
- Experience in server-side templating languages including Jinja 2 and Mako
- Knowledge into Kafka and RabitMQ (GTH)
- Experience into Docker, Git and AWS
- Ability to integrate multiple data sources into a single system.
- Ability to collaborate on projects and work independently when required.
- DB (MySQL, Postgress, SQL)
Selection Process: 2-3 Interview rounds (Tech, VP, Client)


Primary Skills: Database Systems (SQL), Python Flask/Fast API/Django frameworks specifically
Requirements:
- Highly proficient in fundamentals of Python web development frameworks like Flask, Django and Fast API
- Demonstrated experience in developing APIs using Python frameworks
- Should have deep knowledge in PostgreSQL, MS SQL Server and other SQL based Databases
- Knowledge and proficiency in NoSQL is a bonus
Review requirements, design specifications and propose solution and have discussion before implementation
Work with team leads on the requirements and create estimates against those requirements
Deliver projects on time in an agile and continuous development environment
Writing tests in a client-side test framework such as Jest, Jasmine, Mocha, etc.
Work withQA team for resolving issues
Report status with tools like JIRA to stakeholders
Requirements:
- 3-5 years of work experience developing complex software
- Minimum 2years sound experience with back-end development in Java-script frameworks like loopback, Express, etc
- A solid understanding of core Javascript principles and its fundamentals
- Familiarity with popular Javascript tools, frameworks and design principles, and enjoy staying up to date with the changing Javascript ecosystem
- Strong communication skills across the board, with a passion for finding and sharing best practices and driving.
Skills:
- Javascript • Node • Express • Loopback • OAuth • API Development
- Plus Points • Knowledge of Go, Ruby, Python, Closure or any other languages • Test Driven Development (TDD) • Knowledge of front-end development
About Us:
We're on a mission to make it possible for every person, team, and company to be able to tailor their software to solve any problem and take on any challenge. Computers may be our most powerful tools, but most of us can't build or modify the software we use on them every day. At Notion, we want to change this with focus, design, and craft.
We've been working on this together since 2016, and have customers like Pixar, Mitsubishi, Figma, Plaid, Match Group, and thousands more on this journey with us. Today, we're growing fast and excited for new teammates to join us who are the best at what they do. We're passionate about building a company as diverse and creative as the millions of people Notion reaches worldwide.
About The Role:
Millions of people use Notion — and this number is increasing every day. That means a million people trust us to deliver a fast, reliable, and secure experience, and we value this more than anything. We want to keep earning trust, while also continuing to amaze our users with the tools they can build in Notion. This is where you come in — to help us forge a performant and reliable path forward to the future.
What You'll Achieve:
- Write clean, secure, tested, and documented code.
- Design & enhance the Notion platform with new capabilities, as and when the need arises.
- Contribute to monitoring & scaling the architecture of the platform and the infrastructure.
- Write technical documentation, and contribute to determining internal processes.
- Contribute to recruiting of new backend employees
Skills You'll Need to Bring:
- 6+ years of experience building scalable platforms.
- Good understanding of database (Relational Or Nosql) internals like transactions, indexes. Experience in schema design.
- 2+ years of experience working on the AWS platform, and acquaintance with technologies like Elastic Beanstalk, AWS Lambda, Elastic Load Balancer.
- Good understanding of docker internals.
- Good communication skills, good leadership skills, attention to detail, a sound understanding of algorithms, and object-oriented programming.
Nice to Haves:
- You're proficient with any part of our technology stack: React, TypeScript, Node.js, Memcached, Postgres, Docker, and Elasticsearch.
- You've heard of computing pioneers like Ada Lovelace, Douglas Engelbart, Alan Kay, and others—and understand why we're big fans of their work.
- You have interests outside of technology, such as in art, history, or social sciences.
Our customers come from all walks of life and so do we. We hire great people from a wide variety of backgrounds, not just because it's the right thing to do, but because it makes our company stronger. If you share our values and our enthusiasm for small businesses, you will find a home at Notion.
Notion is proud to be an equal opportunity employer. We do not discriminate in hiring or any employment decision based on race, color, religion, national origin, age, sex (including pregnancy, childbirth, or related medical conditions), marital status, ancestry, physical or mental disability, genetic information, veteran status, gender identity or expression, sexual orientation, or other applicable legally protected characteristic. Notion considers qualified applicants with criminal histories, consistent with applicable federal, state and local law. Notion is also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation made due to a disability, please let your recruiter know.






