Java Developer

JOB DESCRIPTION:

• Design, develop, and maintain low-latency, high-performance enterprise applications using Core Java (Java 5.0 and above).
• Implement and integrate APIs using Spring Framework and Apache CXF.
• Build microservices-based architecture for scalable and distributed systems.
• Collaborate with cross-functional teams for high/low-level design, development, and deployment of software solutions.
• Optimize performance through efficient multithreading, memory management, and algorithm design.
• Ensure best coding practices, conduct code reviews, and perform unit/integration testing.
• Work with RDBMS (preferably Sybase) for backend data integration.
• Analyze complex business problems and deliver innovative technology solutions in the financial/trading domain.
• Work in Unix/Linux environments for deployment and troubleshooting.

Required Skills & Experience:

• 4– 12 years of strong hands-on experience in Core Java.
• Deep understanding of Object-Oriented Programming (OOP), data structures, algorithms, and design patterns.
• Proven experience with Spring, CXF, and REST/SOAP web services.
• Solid understanding of microservices architecture and distributed systems.
• Experience working with Sybase or other relational databases.
• Expertise in multithreading, concurrency, and high-throughput server-side development.
• Exposure to capital markets, sales & trading platforms, or similar financial services applications.
• Good working knowledge of Unix/Linux environments.
• Experience in solution architecture and design documentation is a strong plus.
• Strong problem-solving skills, analytical thinking, and a proactive attitude.
• Excellent communication and interpersonal skills to work effectively with global teams.

Preferred Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
• Previous experience in investment banking, capital markets, or financial technology domains.

Why Join Wissen Technology?

• Be a part of a high-growth organization that has expanded 400% in the last five years.
• Work alongside leadership and engineers from IITs, IIMs, MIT, Wharton, and other top institutions.
• Engage with Fortune 500 clients and deliver high-impact projects.
• Certified as a Great Place to Work®.
• Recognized as a Top 20 AI/ML Vendor by CIO Insider (2020).
• Work on next-gen technologies: AI/ML, Big Data, Cloud, DevOps, RPA, and more.
• Global presence across US, India, UK, Australia, Mexico, and Canada.

Website : www.wissen.com 

We are looking for a skilled Java Developer with hands-on experience in Java, Spring Boot, and Microservices architecture to join our dynamic development team. The ideal candidate will be responsible for designing, developing, and maintaining high-performance, scalable applications that meet the needs of modern enterprise systems.

Key Responsibilities:

💠Design, develop, test, and deploy Java-based applications using Spring Boot and Microservices.

💠Collaborate with product managers, architects, and cross-functional teams to understand requirements and deliver solutions.

💠Build and maintain RESTful APIs for various business functionalities.

💠Participate in code reviews, debugging, and performance tuning.

💠Ensure best practices in code quality, security, and software development lifecycle (SDLC).

💠Maintain and improve existing systems and troubleshoot issues as needed.

💠Implement and manage containerized applications (e.g., using Docker, Kubernetes) where applicable.

💠Integrate third-party APIs and work with database systems (SQL and/or NoSQL).

💠Monitor and maintain application performance and scalability.

Required Skills & Qualifications:

💠Bachelors/Masters degree in Computer Science, Engineering, or related field.

💠Strong proficiency with Spring Boot and the broader Spring Framework.

💠Proven experience in building and deploying Microservices.

💠Knowledge of RESTful web services and API design.

💠Experience with databases like MySQL, PostgreSQL, or MongoDB.

💠Familiarity with CI/CD tools (e.g., Jenkins, GitLab CI) and version control systems like Git.

💠Understanding of containerization tools (Docker, Kubernetes is a plus).

💠Strong problem-solving and communication skills.

Job Responsibilities:

* Design, build, and maintain efficient, reusable, and reliable Java code

* Ensure the best possible performance, quality, and responsiveness of the applications

* Identify bottlenecks and bugs, and devise solutions to these problems

* Help maintain code quality, organization, and automatization

* Prepare the technical design of complex technology components

Mandatory Skills:

* Proficient in Java (JDK 1.7) or above JDK 8 preferable, with a good knowledge of its ecosystems with a knack for writing clean, readable Java code, writing reusable Java libraries along with knowledge of concurrency patterns in Java

* Solid understanding of object-oriented programming along with various design and architectural patterns

* Hands on experience with Spring, Spring Boot, JUnit

* Familiarity with concepts of MVC, Microservices, RESTful

·       3+ yrs of experience in product development (Preferring SaaS based)

·       Must have experience in Java web-based application development

·       Hands on development experience on Java/J2EE, Springboot, Spring, Struts, Hibernate, REST Services

·       Experience on HTML, JavaScript, JQuery

·       Hands on experience on database-writing queries/procedures

·       Experience on SVN,GIT,

·       Knowledge of Server configuration

·       Knowledge of cloud preferably AWS

Vah Vah! is an ed-tech company that offers online makeup courses in micro-batches to students across India to learn from the leading teachers in top cities. We provide holistic education with lots of practical training that makes our students job-ready with not just the base skills but also the soft skills for great customer service. Our teachers have more than 15+ years of experience in training makeup and have certified more than 1000+ students. Vah Vah! is founded by executives with extensive experience running consumer business and mobile games at scale (over 100 million players) at Zynga. Vah Vah! is backed by a leading investment firm.

Website Link: https://vahvah.com/

The Mission

Vah Vah teaches professional makeup to budding makeup artists and influencers through live online classes. We have students from Srinagar, all the way to the Andamans. And experienced teachers who have worked in Bridal Makeup, Ramp Shoots, Film and more. We empower our students to join the workforce as fully trained makeup artists. This is the future of vocational education, and you can help build it.

Our Culture

• Amazing workplace and colleagues to work with
• We have the right mixture of creativity, analytics and hustle to move fast in the right direction.
• You will work with colleagues who don’t take themselves too seriously but move mountains.
• See yourself evolving every month with new problems to solve and new skill to master.
• Work with the smartest engineers so you can learn from them.
• Competitive salary at par with the best in the industry
• Great stock options so you can benefit from the company's growth.
• Immense exposure to new technologies

Responsibilities:

• Compile and analyze data, processes, and codes to troubleshoot problems and identify areas for improvement.
• Collaborating with the front-end developers and other team members to establish objectives and design more functional, cohesive codes to enhance the user experience.
• Participating in continuing education and training to remain current on best practices, learn new programming languages, and better assist other team members. Taking lead on projects, as needed.

Requirements:

• Overall experience of 2-5 years in building backend services using languages like NodeJs, Java etc
• Fluency or understanding of specific languages, such as Java, Node.Js, Python, and operating systems may be required.
• Strong understanding of the web development cycle and programming techniques and tools.
• Focus on efficiency, user experience, and process improvement.
• Strong problem solving and verbal and written communication skills.
• Ability to work independently or with a group.
• Sound knowledge on source control and DevOps

What you get:

• Amazing workplace and colleagues to work with
• Competitive salary at par with the best in the industry
• Immense exposure to new technologies

• Understand the overall requirements of the product/platform and specifically for the assigned feature/module.
• Design and Develop Software as per the product architecture and requirements.
• Code and unit testing of the feature/modules including appropriate design reviews and code inspections.
• Ensure adherence to the software development processes.
• Investigates software/system problems to isolate the root cause and provides innovative solutions.
• Collaborates with cross-functional teams (locally & globally) to ensure product releases meet quality, performance, scalability, reliability, and schedule goals.

• Bachelor’s or Master’s degree in Computer Science, Software Engineering or Information Technology.
• 6-10 years of experience in software development using J2EE technologies
• Experience with Core Java, JEE5 (JSP/JMS/Web Services/Servlets), Spring, Hibernate, REST, JBOSS/Tomcat Servers
• 1+ years of experience using Azure IOT technologies
• Work experience in Azure IoT Suite: IoT HUB, Azure TSI, DPS, Service Bus, Azure Functions, Azure KeyVault, MCI/AKS, Azure AD
• Knowledge in Azure Data Lake, Azure SQL
• Strong understanding of object-oriented programming
• Knowledge in ReactJS, JQuery is a plus
• Good knowledge in SQL -preferable
• Must have worked in agile/scrum environment
• Good understanding of software development processes, preferably for a regulated medical devices environment (ISO13485/FDA)
• Ability to work with cross-functional and remote teams.
• Flexibility to work on different areas of the product/platform
• Good written and verbal English communication
• Ability to travel as needed (minimal)