Senior 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

Key roles:

·       Develop backend application with clean code practices foe the application

·       Collaborate with frontend developers to integrate user-facing elements with server side logic

·       Troubleshoot and debug application

·       Gather and address technical and design requirements

·       Build reusable code and libraries for future user-facing

·       Communicate with other third-party team for collaborations

Skillset:

·       Core Java - Hands on experience with Jdk 11 and above

·       Experience with code hosting and collaboration tools like Bitbucket/Github/GitLab

·       Microservice architecture - Rest API calls, inter-service exception handling

·       Non-relational DB - MongoDB basic DB commands to insert, update, delete, find records and Indexing

·       Springboot framework - Spring Data JPA, ORM

·       Event driven architecture - Kafka

·       Tools like Postman, Jenkins, Doppler, IDE, MongoDB atlas

Qualifications:

·       UG: B.Tech/B.E. in Any Specialization, B.Sc in Any Specialization, BCA in Any Specialization

·       PG: Any Postgraduate

• Lead multiple client projects in the organization. 
• Define & build technical architecture for projects. 
• Introduce & ensure right coding standards within the team and ensure that it is maintained in all the projects. 
• Ensure the quality delivery of projects. 
• Ensure applications are confirmed to security guidelines wherever required. 
• Assist pre-sales/sales team for converting raw requirements from potential clients to functional solutions. 
• Train fellow team members to impose the best practices available. 
• Work on improving and managing processes within the team. 
• Implement innovative ideas throughout the team to improve the overall efficiency and quality of the team. 
• Ensure proper communication & collaboration within the team 
  
  

7+ Years of experience in developing large scale applications. 
Solid Domain Knowledge and experience with various Design Patterns & Data Modelling (Associations, OOPs Concepts etc.)
Should have exposure to multiple backend technologies, and databases - both relational and NOSQL databases
Should be aware of latest conventions for APIs
Preferred hands-on experience with GraphQL as well as REST API
Must be well-aware of the latest technological advancements for relevant platforms. 
Advanced Concepts of Databases - Views, Stored Procedures, Database Optimization - are a good to have.
Should have Research Oriented Approach 
Solid at Logical thinking and Problem solving 
Solid understanding of Coding Standards, Code Review processes and delivery of quality products 
Experience with various Tools used in Development, Tests & Deployments. 
Sound knowledge of DevOps and CI/CD Pipeline Tools 
Solid experience with Git Workflow on Enterprise projects and larger teams 
Should be good at documentation at project level and code level ; Should have good experience with Agile Methodology and process
Should have a good understanding of server side deployment, scalability, maintainability and handling server security problems.
Should have good understanding on Software UX 
Proficient with communication and good at making software architectural judgments
Expected outcomes 

• Growing the team and retaining talent, thus, creating an inspiring environment for the team members. 
• Creating more leadership within the team along with mentoring and guiding new joiners and experienced developers. 
• Creating growth plans for the team and preparing training guides for other team members. 
• Refining processes in the team on a regular basis to ensure quality delivery of projects- such as coding standards, project collaboration, code review processes etc. 
• Improving overall efficiency and team productivity by introducing new methodologies and ideas in the team. 
• Working on R&D and employing innovative technologies in the company. 
• Streamlining processes which will result in saving time and cost optimization 
• Ensuring code review healthiness and shipping superior quality code 
  
  
  

• Unlimited learning and growth opportunities 
• A collaborative and cheerful work environment 
• Exceptional reward and recognition policy  
• Outstanding compensation  
• Flexible work hours  
• Opportunity to make an impact as your work will directly contribute to our business strategy.
  ​

At Nickelfox, you have a chance to craft a career path as unique as you are and become the best version of YOU. You will be part of a team with a ‘no limits’ mindset in an inclusive, people-focused culture. And we’re counting on your unique perspective to help Nickelfox grow even faster.  

Are you passionate about tech? Dedicated to learning? Come, join us to build an extraordinary experience for yourself and a dignified working world for all. 
 

What makes Nickelfox a great place for you?

In Nickelfox, you’ll join a team whose passion for technology and understanding of business has driven the company to serve clients across 25+ countries in just five years. We partner with our customers to fuel their growth story and enable them to make the right decisions with our customized technology services and insights. All in all, we are passionate to see our customers win the day. This is the reason why 80% of our business comes from repeat clients.  

Our mission is to provide dignified employment and an environment that recognizes the uniqueness of every individual and values their expertise, and contribution. We have a culture that encourages everyone to bring their authentic selves to work. Our people enjoy a collaborative work environment with exceptional training and career development. If you like working with a curious, youthful, high-performing team, Nickelfox is the place for you.

Job Role-12 months(contract) which is extendable /permnanent

Required Skills:

• Advanced Java skills, Spring, Spring Boot, REST APIs,
• Intermediate in Design Patterns and Principles
• Application is moving into PCF  any cloud native experience is helpful
• DB:  Oracle, SQL Server, RDBMS
• Network Infrastructure knowledge is helpful (work with network support team to troubleshoot)
• Production support skills are highly preferred.
• CI/ CD knowledge is helpful
• Junit for unit testing
• Java certifications are a huge plus

Job Description:

• An ideal candidate is someone who works well with a cohesive team-oriented group of engineers, who have a passion for developing software, who enjoy solving problems in a challenging environment, and who have the desire to take their career to the next level.
• Participate in and lead day to day system development and maintenance activities of the team to meet service level agreements (SLAs) and create solutions with high level of innovation, cost effectiveness, high quality and faster time to market.
• Accountable for full systems development life cycle including creating high quality requirements documents, use-cases, design and other technical artifacts including but not limited to detailed test strategy/test design, performance benchmarking, release rollout and deployment plans, contingency/back-out plans, feasibility study, cost and time analysis and detailed estimates.
• Research and evaluate current and upcoming technologies and frameworks.
• Participate in PoCs (Proof of Concept) and help the Department with selection of Vendor Solutions, Technologies, Methodologies and Frameworks.
• Collaborate with Vendor Resources for Support of Products.
• Conduct brownbag sessions on new and upcoming technologies, methodologies and application appropriate frameworks. Ensure knowledge transfer of vendor technology to *** staff. Provide technical training to the other team members.
  
  

Qualifications:

• Bachelor's degree in Information Systems, Information Technology, Computer Science or Engineering or equivalent work experience.
• 3 to 5 years of experience in related field.
• Broad understanding of Software Engineering Concepts and Methodologies is required.
• Back end Java Development
• API- Restful Services
• Automated Unit Testing (J Unit)
• Spring MVC
• SQL skills- Ability to work with tables, views, and stored procedures
• GIT
• Must be high-energy, detail-oriented, proactive and have the ability to function under pressure in an independent environment.
• Must provide the necessary skills to have a high degree of initiative and self-motivation to drive results.
• Possesses strong communication skills -- both verbal and written and strong relationship, collaborative skills and organizational skills.
• Willingness and ability to learn and take on challenging opportunities and to work as a member of matrix based diverse and geographically distributed project team.

About us:

Siply helps underserved masses inculcate savings behaviour to build a more productive and financially secure country. Our Vision is to build the Digital Bank for 40 Crore Underserved Indians.

Company Link - https://siply.in/">https://siply.in/

About the Role:

This is the Senior role where you will build systems and infrastructure to enable seamless user experience across all our offerings in the space of Micro-Savings, Micro-Credit, Micro-Insurance, and associated Value-Added Services. You will power the user experiences on the App and translate complex technical issues into Business opportunities.

Responsibilities:

• Build the architecture for our Product platforms and take ownership for deliverables.
• Good Understanding of all stage of software development and also mentoring team.
• Design some of the most advanced & complex software systems / products in the industry.
• Determine technical feasibility of medium to low complexity features or solutions by evaluating problem, possible solutions and technology requirements.
• Exercise judgement in prioritizing tasks and selecting methods and techniques for obtaining solutions.
• Collaborate and work closely with Engineering, Product and Design team.

Requirements:

• 4 to 7 years of experience in software product development.
• Degree in Computer Science or related field from top tier universities is preferred.
• Excellent abstraction, coding and system design skills.
• Strong hands-on technology experience building and running large scale systems handling multi-million sessions/transactions per day.
• Strong experience in large scale Database systems like rdbms & NoSQL stores.
• Excellent programming skills in Java/GO/NodeJS and expertise in multi- threading and performance-oriented programming.

Join us to be a part of our Growth Journey!

Responsibilities:

Develop new back-end features in one Python/Java/Go

Collaborate with key stakeholders across different stages of the SDLC

Deliver high quality code and lead validation of the developed features

Skills and Qualifications:

5+ years of working experience in backend software development

Bachelor’s degree in Computer Science

Solid foundation in data structures, algorithms and software design

Strong analytical and debugging skills

Proficiency in one of Python/Java/Go

Hands on experience on big-data technologies such as Apache Spark, Kafka, Cassandra etc

Familiarity with agile practices

About Araali:

Araali Networks is a SaaS based cybersecurity startup that has raised a total of $10M from well known investors like A Capital, Firebolt Ventures and SV Angels, and and through a strategic investment by a publicly traded security company.

The company is disrupting the cloud firewall market by auto-creating nano-perimeters around every cloud app. The Araali solution enables developers to focus on features and improves the security posture through simplification and automation. 

The security controls are embedded at the time of DevOps. The precision of Araali controls also helps with security operations where alerts are precise and intelligently routed to the right app team, making it actionable in real-time.

Roles and Responsibilities

• Have profound interest in Java technologies.
• Must have accomplished academic projects using Java.
• Understanding of OOD patterns.
• Excellent communication skills written and oral.
• Git or SVN experience/knowledge.
• Proficient in Core Java, JSP, JavaScript, JDBC.
• Knowledge in Frontend technologies ( e.g. Angular, HTML, CSS, Java Script, JSP and JQuery)
• Knowledge in java frameworks - Spring/Spring MVC.
• Knowledge with working with databases MYSQL/SQL.
• Solid understanding of object-oriented principles and programming.
• Familiar with various design and architectural patterns.

Desired Candidate Profile

• Sound knowledge of OOPS concept
• Ability to practice good coding standards in order to enable reusability of code.
• Problem solving & Resilience.
• Timely & Error free Delivery
• Ability to perform R & D with code in order to increase product performance.
• Keen to learn new technologies.
• Self-Motivated Individual.

What We offer:

1. Freedom of Work

• 5 days week
• Flexible Timing.
• No Bond System in any form (Training Agreement, No Blank Cheque Deposit).
• Work from home after Domain and Product Training.

2. Work life Balance

As per the experience of more than 2 decades management of Uffizio always believes that work of software development is creative and requires many efforts hence no developer shall work more than 8 hours a day. So, we prefer 8 hours / day working standard is the normal scenario for software developers.

3.We are open to new ideas

• You can bring new ideas / technologies without any hesitations to the management.
• Once feasibility testing of idea is found okay then company is ready to work on your idea.

4.You will be adding new feather to your crown by getting experience of high-end German Analytics systems development while working with us.

5.WorkShops and Training Activities

6.Compensation

• We don't follow bell curve system.
• We judge people on their capabilities rather than their experience in number of years.
• We offer compensation to our employees based on the values they bring to our organization not based on their tenure.
• We have fair increment system bring values on table and claim your desired increment.

Rajasthan Studio is looking for young and bright minds for its upcoming innovative, never-experienced-before app platform for virtual art experiences.

We are looking for programmers with problem-solving skills and critical thinking abilities for the position of Back End developer. Back End developers are responsible for creating a bridge between customers and business logic, optimizing applications for maximum efficiency, creating dashboards for internal teams, and maintaining brand consistency across the application, among other duties.

Backend Web Developers are responsible for managing the interchange of data between the server and the users. The role's primary focus will be the development of all server-side logic, definition, and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. A basic understanding of front-end technologies is necessary as well.

Responsibilities -

• Creating RESTful API/GraphQL to be consumed by Flutter developers
• Building reusable code and libraries for future use
• Optimization of the application for maximum speed and scalability
• Implementation of security and data protection
• Design and implementation of data storage solutions
• Participate in the entire application lifecycle, focusing on coding and debugging
• Write clean code to develop functional web applications
• Troubleshoot and debug applications
• Provide training and support to internal teams

Skill & Qualifications -

• Basic understanding of front-end technologies and platforms, such as JavaScript, HTML5, and CSS3
• Understanding accessibility and security compliances
• User authentication and authorization between multiple systems, servers, and environments
• Integration of multiple data sources and databases into one system
• Management of hosting environment, including database administration and scaling an application to support load changes
• Data migration, transformation, and scripting
• Setup and administration of backups
• Outputting data in different formats
• Understanding differences between multiple delivery platforms such as mobile vs desktop, and optimizing output to match the specific platform
• Creating database schemas that represent and support business processes
• Implementing automated testing platforms and unit tests
• Proficient understanding of code versioning tools, such as Git
• Proficient understanding of OWASP security principles
• Understanding of “session management” in a distributed server environment
• Knowledge of Yii framework - version 2 (preferred)