Senior Engineer

Job Title: Java Developer

Java Developer – Job Description Wissen Technology is now hiring for a 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. - 5 to 14 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 clientfacing 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.

Requirement

• Developer Background: The ideal candidate should come from a developer background with knowledge of Java and other programming languages.
• Database Management: They must have hands-on experience with database management.
• Experience Level: We are looking for a minimum of 3 years of experience.
• On-Call Experience: They must have proven on-call experience, demonstrating strong problem-solving skills, excellent communication, and the ability to manage stress effectively. We also value collaboration, proactivity, and a curious mindset.

L2 Support Engineers are responsible for:

1. Production Issue Debugging

○ Analyzing logs and monitoring application behavior to identify root

causes of production issues.

○ Providing temporary resolutions using database-level fixes or

configuration changes.

1. Handling Escalations from L1 Support

○ Addressing tickets and issues escalated from L1 by providing immediate

workarounds.

○ Ensuring minimal downtime and impact on business operations.

1. Forwarding Issues to L3/Development Team

○ When a permanent code-level fix is required, the issue is escalated to the

L3 (Development) team.

○ Prior to escalation, L2 should provide a detailed analysis and temporary

resolution (e.g., database fix) to minimize user impact.

1. Root Cause Analysis and Documentation

○ Conducting detailed root cause analysis (RCA) for major incidents.

○ Updating the Confluence Playbook with clear, actionable steps for L1

teams to facilitate future self-resolution.

Shift timings : Afternoon

Job Summary

We are seeking an experienced Senior Java Developer with strong expertise in legacy system migration, server management, and deployment. The candidate will be responsible for maintaining, enhancing, and migrating an existing Java/JSF (PrimeFaces), EJB, REST API, and SQL Server-based application to a modern Spring Boot architecture. The role involves ensuring smooth production deployments, troubleshooting server issues, and optimizing the existing infrastructure.

Key Responsibilities

● Maintain & Enhance the existing Java, JSF (PrimeFaces), EJB, REST API, andSQL Server application.

● Migrate the legacy system to Spring Boot while ensuring minimal downtime.

● Manage deployments using Ansible, GlassFish/Payara, and deployer.sh scripts.

● Optimize and troubleshoot server performance (Apache, Payara, GlassFish).

● Handle XML file generation, email integrations, and REST API maintenance.

● Database management (SQL Server) including query optimization and schema updates.

● Collaborate with teams to ensure smooth transitions during migration.

● Automate CI/CD pipelines using Maven, Ansible, and shell scripts.

● Document migration steps, deployment processes, and system architecture.

Required Skills & Qualifications

● 8+ years of hands-on experience with Java, JSF (PrimeFaces), EJB, and REST APIs.

● Strong expertise in Spring Boot (migration experience from legacy Java is a must).

● Experience with Payara/GlassFish server management and deployment.

● Proficient in Apache, Ansible, and shell scripting (deployer.sh).

● Solid knowledge of SQL Server (queries, stored procedures, optimization).

● Familiarity with XML processing, email integrations, and Maven builds.

● Experience in production deployments, server troubleshooting, and performance tuning.

● Ability to work independently and lead migration efforts.

Preferred Skills

● Knowledge of microservices architecture (helpful for modernization).

● Familiarity with cloud platforms (AWS/Azure) is a plus.

Who are we?  

Whatfix is the #1 Digital Adoption Platform (DAP) for Enterprises. We are disrupting the way Learning, Training and Application Support content is consumed. We provide large enterprises with a SaaS platform that helps accelerate product adoption and reduce support & training efforts by providing contextual and step by step guidance inside any web application at the exact time a task is being performed. The product has redefined the way companies onboard, train, and provide support to users. 

What sets us apart from the rest?

With over 100 of the Fortune 500 companies already onboard as customers, Whatfix has been named among the top 20 B2B tech companies alongside the likes of Adobe, PayPal, and Cisco.

With a YoY growth of 300%, we have also been recognized among the top 50 fastest growing SaaS companies worldwide in the SaaS 1000 list and as a Market Leader by Gartner in the Digital Adoption space. 

We are pleased to have an Employee rating of 4.6 on Glassdoor and our Customer obsession can be seen in our reviews on platforms like G2 Crowd & Gartner Peer Insights.

The employees are happy, the customers are happy, but what about the investors? Take a look for yourself - Sequoia Capital || Stellaris || Cisco || Eight Roads || Helion Ventures

“Hustle Mode ON” is something we live by.

Our Team:

The Engineering team at Whatfix provides end to end engineering throughput that forms part of core platforms and services that drive Whatfix business.

Our team is responsible for creating the Customer Platform and everything around it be it Analytics, Infrastructure or Core Algorithms. The team owns and is responsible for all pieces that we design, build and support end to end for Whatfix product/ business.

 Your Opportunity:

As part of the Core Engineering Team @Whatfix, you’ll have the opportunity to make a difference by being a part of the development team that builds future forward products. At Whatfix it’s all about scale. One of the key attributes of this job is that you are required to continuously innovate and apply technology to provide business 360 views of Whatfix customers.

 Your Responsibility:

1. Define architecture blueprints & take complete technical ownership of high-level design, tech stack, non-functional attributes of one or more components of various platforms
2. Design, build, test and deploy cutting edge solutions at scale, impacting millions of customers worldwide
3. Work closely with other architects in the team and ensure architectural consistency and technical excellence of the products and platforms
4. Work with engineering teams in building high-quality and highly resilient scalable products and platforms at Whatfix
5. Work with cross-functional teams to address all technical dependencies
6. Drive some of the company-wide tech initiatives striving towards continuous technical excellence of our platforms
7. Actively participate in technical innovations, external presentations, technical publications etc.
8. Identify right open source tools to deliver product features by performing research, POC/Pilot and/or interacting with various open-source forums
9. Deploy and monitor products on Cloud platforms

 Our Ideal Candidate:

You have a deep interest and passion for technology. You love writing and owning code and enjoy working with people who will keep challenging you at every stage. You have strong problem solving, analytic, decision-making and excellent communication with interpersonal skills. You are self-driven and motivated with the desire to work in a fast-paced, results-driven agile environment with varied responsibilities.

 Your Qualifications:

1. 11+ years of experience as an Engineer
2. Ability to work with teams in a collaborative and productive manner
3. Strong computer science fundamentals in data structures and algorithms
4. A self-motivated learner and builder with strong customer focus and obsession with quality

 Must-Have:

1. Strong Expertise in Backend Technologies- Java, Spring Boot, etc 
2. Expertise in working with AWS or other cloud infrastructures like Azure or Google Cloud, and using Infrastructure-as-Code tools
3. Analyze Functional & Non-Functional requirements with effort estimation and deployment strategies
4. Hands-on in Architecting and developing large scale applications
5. Hands-on debugging skills
6. Design for performance, scalability, fault tolerance and high availability

 Good to have:

1. Experience in Client-side technologies such as jQuery
2. Experience in Front End Technologies is good to have (Javascript, React)
3. Experience with Storage systems - NoSQL (Cassandra/MongoDB)
4. Leveraging cutting edge technologies like Kubernetes, Docker, etc. to design and build new infrastructure features

  Behavioural traits: 

1. Excellent communication and technical leadership skills
2. Can-do attitude to take BIG problems by their horns and solve them
3. Ability to inspire others & be a role model and mentor for upcoming engineers in the organization
4. Entrepreneurial spirit to conceive ideas, turn challenges into opportunities and build products

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status

Built on a foundation of AI we are automating enterprise application integration, data integration, data preparation for Analytics and bot automation. We are looking to build our engineering development center in Pune with passionate and entrepreneurial developers at all levels (Interns, Fresh Graduates, Senior Software Engineers and Architects).