Java Developer

Experience: 3 to 5

Location: Bangalore

Wissen Technology is now hiring for a Senior Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting. 

Required Skills:

• Exp. - 3 to 5 years
• Experience in Core Java and Spring Boot.
• Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should have the ability to analyze, design, develop and test complex, low-latency client- facing applications.
• Good development experience with RDBMS.
• Good knowledge of multi-threading and high-performance server-side development.
• Basic working knowledge of Unix/Linux.
• Excellent problem solving and coding skills.
• Strong interpersonal, communication and analytical skills.
• Should have the ability to express their design ideas and thoughts.

About Us:

At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide.

Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality. 

We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more. 

Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients the flexibility to adapt to their evolving business needs. Whether it’s AI/ML for unstructured data processing, cloud enablement, or data engineering, Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our proprietary Interview Ninja platform ensures we hire the best, building high-performing teams that deliver unmatched results. 

Today, Wissen Technology has a global footprint with 2200+ employees across offices in the US, UK, UAE, India, and Australia. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.

Website : www.wissen.com 

About the Company:

We are a Series A funded Indonesian online group buying platform that helps people connect with like minded people who want to buy the same item/product at a discounted price.  The team is spread across India and Indonesia, and is led by experienced founders who have founded, set-up, scaled and exited businesses across India and Indonesia. We have raised our first round of funding, and are growing extremely fast. We are actively looking for Full Stack developers to join our team.

We are looking for an experienced full-stack engineer to implement both back-end and front-end software solutions to serve both internal and external customers. The position entails working in an agile team to develop Java- and React-based projects that support our system.

• Design, implement and test full-stack solutions using Java, Spring and React
• Design robust spring system that can support 2-5mil users.

• Work alongside other team members to integrate various components into finished product
• Work closely with product owner to create stories
• Continuously create new and interactive features that would help to improve user experience and user engagement.
• Assist with troubleshooting of issues as needed
• Participate in the design and architecture of software solutions
• Assist in developing and maintaining continuous integration pipelines

Salary range : 15 lpa - 30 lpa or more depending on candidate experience.

Skills required : 

You will be best qualified if you have experience with several (not all) of the following:

• JAVA
• Python (Flask and Django)
• Spring/Spring Boot
• React
• Hibernate
• Linux
• REST
• Kafka
• Mysql
• AWS
• ELK Stack (Elasticsearch)
• CI/CD Pipelines

Qualifications:

• 2+ years of experience in Java based technologies
• 1+ years of experience in Python
• Experience in designing databases and system architecture 
• 1+ years of experience in Front end technologies like HTML, CSS, JavaScript and ReactJs

Why join us?

• You will get to work with an experienced team who has worked in multiple startups. 
• Experimenting is the name of the game. And POCs are the snacks that fuel them.
• Grow with us. It is a family
• Gain exposure to two of the fastest growing markets in the world - South East Asia and Social Commerce

We are looking for a skilled and experienced Node.js Developer with at least 4 years of professional experience to join our team. As a Node.js Developer, you will be responsible for developing robust and scalable web applications using JavaScript and various frameworks.

Roles and Responsibilities

• Production platform hands-on experience involving Node JS & REST API.

• Hands-on production platform experience working with micro-service back-end architecture.

• Working knowledge of GRPC, HTTPS, and GRAPHQ protocols.

• Well-versed in cloud deployment of code blocks.

• Experience with JS testing and code analysis frameworks such as Mocha.

• Utilize modern JavaScript frameworks such as Express.js and Sails.js to build efficient and scalable applications.

• Work with databases like MongoDB and PostgreSQL using Mongoose and Sequelize ORM.

• Integrate messaging systems like Kafka and RabbitMQ for reliable event-driven communication.

• Write unit tests using Mocha, Chai, and Jest frameworks to ensure code quality and reliability.

• Utilize AWS S3 bucket for secure and scalable storage of data and media files.

• Collaborate with QA engineers to perform thorough testing and bug fixes.

• Work with third-party APIs such as Postman, Twilio, SendGrid, Firebase, and KeyCloak for various integrations.

Greetings from Sapper Software Pvt Ltd

Sapper.ai is a cloud native integration platform. Businesses use us to connect their applications, automate and optimize their processes and data connections. Sapper.ai is unique in our ability to connect and move data using any method (APIs, integrations, batch and streaming). We embed AI throughout the platform to proactively recommend integrations and process automations to business users freeing them up from mundane and time consuming tasks.

Website: https://www.sapper.ai/

Senior Java Developer : 3 to 7 years

Work Location: Work in the office at Baner, Pune

Job Requirements:

• Relevant experience in Java 1.7 or higher / J2EE Java development.

. Have experience of agile systems development methodologies such as SCRUM

• Experience in designing the solution and implementation.
• Is a communicative, positive, outgoing and driven team player.
• Solution-oriented, see opportunities and proactively proposing new solutions, speak and write fluently in English.

Skill Set Required:

• Experience in Java 8.
• Experience in Spring Boot and other spring framework like Spring data, AOP etc.
• Experience in MongoDB/ Kafka / RabbitMQ etc.
• Experience in REST API
• Have worked on microservices
• Should have worked on minimum 2- 3 projects
• Experience in writing effective Unit test case for better coverage.
• Experience in writing good quality code by following code quality tools likes SonarQube etc.

Roles and Responsibilities

- Relevant work experience in Java 1.7 or higher / J2EE Java development.

. Have experience of agile systems development methodologies such as SCRUM

- Experience in designing the solution and implementation.

- Is a communicative, positive, outgoing and driven team player.

- Solution-oriented, see opportunities and proactively propose new solutions, speak and write fluently in English.

Desired Candidate Profile

- Experience in Java 8.

- Experience in Spring Boot and other spring frameworks like Spring data, AOP, etc.

- Experience in MongoDB/ Kafka / RabbitMQ etc.

- Experience in REST API

- Have worked on microservices

- Should have worked on a minimum of 2- 3 projects

- Experience in writing effective Unit test cases for better coverage.

- Experience in writing good quality code by following code quality tools likes SonarQube etc.

Mandatory - Core Java / Java 8 & Spring Boot,

Good to have - MongoDB/Kafka / RabbitMQ / Micro Services

If you are interested and matching as per requirements, kindly share your updated CV and below details on hemant dot hingmire at sapper dot ai 

Total Experience?

Relevant Experience?

Core Java?

Java 8?

MongoDB/Kafka / RabbitMQ?

Springboot?

Microservices?

Current Company?

Current CTC?

Expected CTC?

Notice Period (Max 30 days)?

Tentative Date to Join Us?

Reason for Change?

Offer in Hand (Yes/ No) Annual CTC?

Living in Pune Yes / No?

• Experience in PHP & MySQLi, various open source frameworks,
• Strong knowledge in JavaScript, XHTML, CSS, AJAX, SQL,
• Strong Knowledge in Frameworks like Laravel
• Strong skills of APIs Creation & integration
• Knowledge of Cloud Servers like AWS, Digital ocean
• Know how to Secure the PHP Scripts from attacks or injections,

• Having experience in Hospitality/Travel/Internet/Online/Start-up/IT/Logistic/Courier/Cargo/ Transportation would be preferable.