
Requirements:
Java developer responsibilities include designing, developing, Testing and delivering high-volume, low-latency applications for mission-critical systems.
1. Proven hands-on Software Development experience
2. Proven working experience in Java development
3. Hands on experience in developing applications using Java EE platforms
4. Profound insight of Java and JEE internals (Classloading, Memory Management, Transaction management etc)
5. Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
6. Experience in the Spring Framework

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Job Title: Senior Software Engineer
Location:PUNE
Job Type: Full-time
About the Role:
We are seeking a Senior Software Engineer with at least 1 year of experience in ad tech (preferred) to join our dynamic team. The ideal candidate will have strong proficiency in Java and possess problem-solving skills to design, develop, and maintain scalable software solutions in the ad tech industry.
Key Responsibilities:
- Develop and maintain high-quality Java-based applications.
- Collaborate with cross-functional teams to design and implement new features.
- Troubleshoot and debug issues, ensuring optimal software performance.
- Write clean, scalable, and efficient code while adhering to best practices.
- Participate in code reviews and provide mentorship to junior engineers.
Requirements:
- Proven experience with Java and software development.
- At least 1 year of experience in ad tech (preferred).
- Strong understanding of object-oriented design and data structures.
- Excellent communication and collaboration skills.
- Ability to work independently and manage time effectively.
🧠 Job Description: Senior Java Developer (8+ Years Experience)
Location: Mumbai, India
Employment Type: Full-time, Hybrid mode of working
Company: Wissen Technology
Website: www.wissen.com
🚀 About Wissen Technology
Wissen Technology is a specialized technology consulting firm delivering cutting-edge solutions to global leaders in Banking & Finance, Telecom, and Healthcare. Established in 2015 and part of the Wissen Group (founded in 2000), Wissen has scaled rapidly with impressive impact and recognition.
- 🌍 Offices in US, UK, India, Australia, Mexico, and Canada
- 👥 1700+ Wissen Technology professionals; part of a 4500-strong Wissen Group
- 🏆 Great Place to Work® Certified
- 🧠 Featured as a Top 20 AI/ML Vendor (CIO Insider, 2020)
- 📈 Achieved 400% revenue growth in 5 years (with zero external funding)
- 💼 Delivered $1B+ worth of projects to 50+ Fortune 500 companies
Learn more about our work and thought leadership:
📄 Articles by Wissen | 💼 LinkedIn
About the Role
We are seeking an experienced Senior Java Developer with 8+ years of hands-on expertise in building scalable, high-performance applications. The ideal candidate will have strong fundamentals in Java, OOPS, Multithreading, Spring concepts, and SQL, and will play a key role in designing, developing, and optimizing enterprise-grade solutions.
Key Responsibilities
- Design, develop, and maintain complex applications using Core Java and Spring frameworks
- Apply advanced Object-Oriented Programming (OOPS) principles to deliver clean, modular, and reusable code
- Implement and optimize multithreaded applications for high-performance systems
- Work with SQL databases for efficient data modeling, query optimization, and integration
- Collaborate with cross-functional teams to gather requirements and translate them into technical solutions
- Conduct code reviews, troubleshoot issues, and ensure adherence to best practices
- Mentor junior developers and contribute to technical knowledge sharing within the team
- Ensure application scalability, performance tuning, and security compliance
Required Skills & Qualifications
- Bachelor’s/Master’s degree in Computer Science, Engineering, or related field
- 8+ years of professional experience in Java development
- Strong expertise in Core Java, OOPS, and Multithreading
- Hands-on experience with Spring concepts (Spring Core, Spring MVC, Spring Boot preferred)
- Proficiency in SQL and database design (MySQL, Oracle, PostgreSQL, etc.)
- Solid understanding of software development life cycle (SDLC) and Agile methodologies
- Strong analytical, problem-solving, and communication skills
🌟 Why Wissen?
Join a company that combines start-up agility with enterprise stability. Work alongside some of the brightest minds from institutions like MIT, Wharton, IITs, IIMs, and NITs. Be part of mission-critical projects for Fortune 500 giants, and grow in a culture that invests in your future.
|
Technologies/Frameworks – · Core Java, J2EE, · Spring Core and Spring MVC, Sprint Boot, Spring Security, · JDBC, Hibernate, RESTful APIs, SOAP WebServices · Knowledge of JavaScript, JQuery, AJAX, HTML5, and CSS3, Angular is added advantage · Junit or Mockito frameworks · Maven, Git · Knowledge Data Structures, · SQL, MySQL · Designing relational database schemas · Basics of AWS, Cloud, Microservices
· BFSI, FinTech |
Responsibilities
- Software Engineering
- Design and develop highly scalable, available, reliable, secure and fault tolerant systems with minimal
guidance for a market leader in the logistics industry
- Partner with team members on functional and nonfunctional requirements and spread design
philosophy, goals and improve the code quality across the team
- Research new technologies and tools that enable building the next generation of our services
- Provide technology leadership to the team and foster engineering excellence
- Product Delivery
- Partner with product managers to define and execute on the feature roadmap
- Translate business requirements into scalable and extensible design
- Coordinate with various cross functional teams on planning and execution
- Maintaining automated build / test / deployment environments
Qualifications
- Software Engineering
- Should have at least 2 years of hands on experience in designing, developing, testing and deploying
applications on Java, Ruby, Kotlin, Python, Node or Go for large scale applications
- Deep knowledge of one of the programming language they have experience in
- Proficient in OOP and Design Patterns, experience with functional programming would be a plus
- Data modelling experience in Relational Databases
- Ability to design and implement low latency RESTful services
- Product Delivery
- Ability to scope, review and refine user stories for technical completeness and to alleviate dependency
risks.
- Well versed in working with agile methodologies which includes phases such as design, development,
code review, testing and release management
- Ability to have worked in a CI/CD environment, with hands on experience with Git or any similar source
code management tools
- Product Maintenance
- Experience troubleshooting server performance issues such as memory tuning, GC tuning, resource leaks
etc
- Continuously refactor applications to ensure high quality design.
Java Developer/Software Developer
Experience: 3 - 7 years
Qualification: MCA/B.Tech
Vacancy: 10
Roles and Responsibilities
- Contribute to all phases of the development lifecycle
- Write well designed, testable, efficient code
- Ensure designs are in compliance with specifications
- Prepare and produce releases of software components
- Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review.
- Skill Set: Springboot Framework, Java
Note – Only candidate ready to join immediately can apply.
- Experience - 6-10 years
- Key Skills for Software Developer C++, Linux with SQL:
- - Looking only for candidates who can join immediately or max 10 day
- - should be able to work independently with no handholding
- - the ability to work with C/C++ code on Windows/Linux platforms
- - Database knowledge of MSSQL, Oracle, MySQL/MariaDB, ideally other ones too: Saphana, Teradata, Postgres.
- - Ability to work on their own fixing defects
- - should be able to understand secure coding practices
- - should have the Ability to work independently and with the team across different time zones
Job Description
· Strong Core Java / C++ experience with Strong Handson Coding
· Excellent understanding of Logical ,Object-oriented design patterns, algorithms and data structures.
· Sound knowledge of application access methods including authentication mechanisms, API quota limits, as well as different endpoint REST, Java etc
· Strong exp in databases - not just a SQL Programmer but with knowledge of DB internals
· Sound knowledge of Cloud database available as service is plus (RDS, CloudSQL, Google BigQuery, Snowflake )
· Experience working in any cloud environment and microservices based architecture utilizing GCP, Kubernetes, Docker, CircleCI, Azure or similar technologies
Company Description
BlueOptima’s vision is to become the global reference for the optimisation of the performance of Software Engineers across all industries. We provide industry-leading objective metrics in software development. We enable large organisations to deliver better software, faster and at lower cost, with technology that pushes the limits of what has been done before.
We are a global company which has consistently doubled in headcount and revenue YoY, with no external investment. We currently are located in 4 countries: London (our HQ), Mexico, India and the US. A total number of 180+ employees (and increasing every day) from 22 different nationalities and with over 25 languages spoken.
We promote an open minded environment and encourage our employees to create their own success story in this high performance environment.
Job Description
Location: Bangalore/Gurgoan, India
Department: Engineering
Job summary:
We are seeking a Senior Software Engineer, with experience in developing scalable application components, which are remotely deployed and are used to extract and push large volumes of data in a data warehouse solution, to join our growing company and be a part of our success story.
We are looking for an individual with great attention to detail, who is genuine, confident, committed and not only passionate about technology, but is keen to own the solution end to end, and most importantly excited to work in a fun and friendly start-up environment.
The ideal candidate will be passionate about technology and getting things to work while at the same time being able to mentor (and lead) other engineers by way of example to achieve excellence in their work.
Your team: You will be working with a diverse team with members located around our different offices, with whom you will be working hand-to-hand. This team is currently based in Gurgaon and we are now looking forward to growing it in Bangalore and mid next year to Mexico with the plan of building two teams in India (Gurgaon and Bangalore) and one in Mexico (Guadalajara).
We are looking for skilled and talented engineers to join our Data Analysis and Processing (DAP) team and directly contribute to development of application components built by the team.
The DAP team works on a business critical component which is responsible for collecting required source code interaction and static metrics data from client location, and processing the large volumes of data end to end. Remote deployment and the uptime requirements only makes this component one of the most complex standalone java applications.
As a Senior Software Engineer in the DAP team, you will be directly contributing to development of the Integrator and Central Server components using Spring Boot, Hibernate and Core Java. And while contributing directly to the development of the software components, you are also expected to lead and mentor a team of next generation platform engineers.
Responsibilities and tasks:
- Analyse, Design, Develop, implement, test and maintain application software components
- Analyse client requirements and convert them into technical specs.
- Own development of features and improvement
- Identify and resolve performance bottlenecks
- Identity and resolve architectural inefficiencies in design, and create a roadmap to resolving them
- Lead and mentor a team of junior developers
- Interact with internal client facing team and provide technical support to them
- Engage with clients to provide support on your component as and when required
Qualifications
What You Need to Succeed at BlueOptima:
- Minimum Bachelor's degree in Computer Science or equivalent
- Minimum 5+ years experience with Java and J2EE/Java EE
- Minimum 2+ years experience with developing standalone Java applications
- Strong understanding of relational database, partitioning and indexing techniques, SQL
- Demonstrable experience in optimising application performance at database or any other layer
- Experience in creating high and low level design based on existing application architecture and documenting such design
- Strong understanding of Java concurrency, concurrency patterns, experience building thread-safe code
- Ability to work autonomously with minimum supervision
- Strong problem solving and analytical skills, and having a can-do attitude
- Familiarity with Agile methodologies like SCRUM, Sprints, etc and leading a Scrum a small Scrum team
- Commitment to accomplishing the task at hand and identify the fastest and most reliable way to solve a problem
- Familiarity with Linux shell and related command line tools
- Strong grasp of Unit & Integration testing
Good to have:
- A team manager, in terms of handling people and delivery which is not a must in case of technical geeks
- Making sure that the sprints and tasks are completed on time with no spill-overs and sticking to the deadline
- Preferred experience on Spring boot,, Docker, Kubernetes
- Some exposure in Linux
Additional Information
Why join our team?
Culture and Growth:
- Global team with a creative, innovative and welcoming mindset.
- Rapid career growth and opportunity to be an outstanding and visible contributor to the company's success
- Freedom to create your own success story in a high performance environment
- Training programs and Personal Development Plans for each employee
Benefits:
- Competitive Salary
- Flexible Work from Home policy - 2 days home p/w
- Free drinks and snacks in the office
- International travel opportunities
- Global annual meet up (most recent meetups have been held in Cancun and India)
- High quality equipment (Ergonomic chairs and 32’ screens)
JD for Java Developer Position (3-5 years)
Notice Period: 10-20 days or within 1 month
1. Excellent Java skills
2. Hands-on working experience with Spring, Hibernate, GIT, Jenkins
3. Strictly adhere to coding standards & unit testing
4. Excellent analytical skills and communication skills are a must
5. Knowledge of MySQL or any other DBMS
Added Advantage
1. ElasticSearch
2. AWS services like lambda, redis, graphql etc
3. Docker
If you are a PHP developer & have a good understanding of web technologies you may apply for this positoin. As a Developer, you will be a part of our web development team and will be working with some very experienced developers on challenging and interesting projects. You will be a part of an Agile delivery team and work closely with Requirement Analysts, Scrum Masters, Development & Design team and QA team.
Responsibilities
- Write clean, maintainable and efficient code.
- Design robust, scalable and secure features
- Collaborate with team members to develop and ship web applications within tight timeframes.
- Write unit and functional testcases.
- Work on bug fixing, identifying performance issues and improving application performance
- Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
- Handling complex technical issues
Technical Skills
- PHP - 4.5 Years Experience along with HTML5, CSS Bootstrap, JQuery, JS, MySQL/MongoDB, JSON Web Services and API Services
- PHP Frameworks: Min. 2 Years with anyone (Laravel, Symfony, CakePHP, Yii etc.)
- PHP Reporting Tools (Jasper etc.)
- NET Exposure - Good to have
- Understanding of responsive design frameworks such as bootstrap
- MEAN Stack - Good to have
- Angular / React - Good to have
Perks, Benefits & Culture:
We are offering amazing career growth opportunities, great compensation, and benefits. This begins with -
- weekly lunches
- alternate weekends-off
- annual medical checkups
- Social engagement
- financial assistance
- and more...









