Java Developer

Experience: 5 TO 8

Location: MUMBAI

Wissen Technology is now hiring for a Java Developer - MUMBAI 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 8 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.

• Sound knowledge of Core Java, JSP, Servlets & MVC, Spring
• Good knowledge of Java Script, Ajax
• Good knowledge of My SQL database server
• Experience in working with IDE like Eclipse or Netbeans
• Knowledge of Spring would be an advantage
• Great problem-solving attitude
• Strong OOP & OOAD fundamentals
• Knowledge of Java EE Design pattern
• Technical hands on Spring, Spring Security, Hibernate, JPA, Struts, OO JS, XML, Webservices (Restful, JAX-WS).
• Nice to have knowledge of Liferay, Amazon EC2, Google App Engine, Restful services, jQuery, YUI, EstJS (Sencha), frameworks.

• Understand the BRS / SRS document
• Coordinate with Team lead/DBA to understand the System design and Database design
• Development and Unit Testing
• Bug fixing and Change Request implementation

Responsibilities:

Lead the design and development of sophisticated, high availability, and secured

server-side applications with a primary focus on Golang.

● Collaborate with cross-functional teams to understand requirements, architect

solutions, and deliver high-quality software products.

● Mentor and guide junior engineers, sharing your engineering expertise and best

practices to foster skill development within the team.

● Analyze and optimize performance, scalability, and reliability of existing Golang

applications, making strategic improvements where necessary.

● Design and implement automated unit and integration tests to ensure code quality,

maintainability, and stability.

● Stay up-to-date with the latest advancements in software technologies,

recommending their adoption when appropriate.

● Champion code reviews, architectural discussions, and technical documentation to

maintain high development standards.

● Troubleshoot and resolve complex issues, providing innovative solutions to overcome

challenges.

● Contribute to the recruitment and hiring process by participating in interviews,

evaluating candidates, and providing input on hiring decisions.

Requirements

Bachelor's or Master's degree in Computer Science, or a related field.

● 3+ years of experience in software development, with substantial experience in

Golang and cloud infrastructure.

● Expert-level proficiency in designing and developing high-performance, concurrent

applications with Golang.

● Experience with distributed systems, microservices architecture, and containerization

(e.g., Docker, Kubernetes).

● Solid knowledge of software testing methodologies and tools, including unit testing

and integration testing for Golang applications.

● Demonstrated ability to lead projects, collaborate effectively with teams, and mentor

junior engineers.

● Excellent problem-solving and analytical skills, with the ability to tackle complex

technical challenges.

● Having prior experience in the FinTech domain would be an added advantage.

As an SSE, you will play a crucial role in designing, developing, and maintaining our backend systems

that power our platform. The ideal candidate will have a solid background in Python Django and a

strong understanding of databases, caching, and distributed systems.

● Design, develop, and maintain robust, scalable, and high-performance backend systems using

Python Django.

● Collaborate with cross-functional teams to understand business requirements and translate

them into technical solutions.

● Optimize application performance and scalability by implementing caching strategies, load

balancing, and distributed computing techniques.

● Ensure data integrity and security by implementing best practices for data storage, retrieval,

and access control.

● Develop and maintain integrations with external APIs and services to support seamless

interactions with third-party systems.

● Identify and address performance bottlenecks and other system issues to improve overall

system efficiency.

● Write clean, maintainable, and testable code following industry-standard coding practices.

● Conduct code reviews and provide constructive feedback to peers to ensure code quality and

adherence to best practices.

● Mentor junior team members and assist in their professional growth.

Qualifications

• 4+ years of professional software development experience

• 4+ years of object-oriented Java / J2EE development

• Full SDLC experience (requirements gathering, architecture, development, QA, etc.…)

• Experience with Spring (MVC, IOP/DI, REST, Security) & Hibernate/Spring

• Experience with SOAP / REST web services

• Knowledge of SQL

• Knowledge of No SQL concepts, understanding of Solr, Redis and Mongo DB is desirable

• Understanding concepts of CDN & Content Management

• Must have worked on any one messaging solutions

• Bonus Points for micro service design and development experience

• Bonus points for any mobile development experience

• Used Agile methodology

• Experience leading or working with cross geography teams

• Bonus Points for experience working on Unix, shell scripting & Build Systems

• Experience in performance optimization is an added advantage

POSITION

• You will be actively involved during the entire technology development lifecycle. Responsibilities will include all aspects from design, coding, testing, customer feedback cycle changes and support.

• Primary role in software development with object-oriented Java

• The customized solutions that you will be architecting and developing will also require knowledge and experience with spring / Hibernate, SOAP / REST, and SQL.

• Ability to learn new technologies quickly and willingness to read and digest large existing source code and take ownership on complex component or subsystem to drive improvements and re-architecture

• Work with a team of amazing developers and designers involved in the design and development of global platforms

• Invent and prototype new features, build, test and ship them to customers as SaaS, cloud based or hosted product platforms

• Drive the implementation of new technologies which improve our ability to build great customers products. • Participate in a fun, open learning environment with great benefits and smart talented folks that represent among the best globally.

QUALIFICATION

• A Bachelor’s degree in Computer Science (or equivalent experience)

• M-Tech or advanced degree a plus

• Hackathon participation and accolades are a plus
Job Role

                                       
Quinbay

Quinbay is an upstart digital platforms and products company with a core focus on disrupting traditional markets and business models with the strength of our innovation driven digital value. We harness the power of our open innovation culture, our unique talent selection approach, the skills and expertise of our people across various industries, domains and technologies and a unique blend of analytics driven strategies for creating future digital platforms.

OPPORTUNITIES: Pursue opportunities in and learning/growth interests in Mobile, product development, product management, Analytics, Machine learning, UI/UX design, DevOps, Automation, Drones, bots and Java / open-source development frameworks and methodologies – on a variety of domains like eCommerce, Logistics and fulfilment, Ecommerce and a whole lot other.
Opportunities to be part of fastest growing eCommerce platforms in exciting application areas like core commerce, supply chain, logistics and fulfilment, merchant, mobile commerce, analytics, automation and a lot more for the global markets positioned for Asia.

• 4+ years of professional development experience in an agile software engineering role
• Strong development skills in Java or Groovy
• Experience with Jenkins, bamboo and CI/CD environments
• Familiarity with Guice or similar dependency injection frameworks
• Familiarity with relational database technology
• Familiarity with document store database technology such as ElasticSearch or Cassandra
• Experience with design and testing of RESTful APIs
• Familiarity with cross platform development on Linux, OSX and Windows
• Strong understanding of Git version control system
• Knowledge of JavaScript (Node.js)
• Familiarity with Amazon Web Services (AWS)
• Familiarity with Docker / Kubernetes
• Experience with continuous integration and build systems such as Jenkins or Bamboo
• Experience with Jira or other project management, issue-tracking or bug-tracking tools
• Should have knowledge of RDBMS
• Familiarity with Node.js, Kotlin, Kafka, DynamoDB
• Previous experience with SaaS or cloud development, Micro-services

• Java, J2EE
• Microservices
• Spring Boot
• JPA, REST API, JSON, JWT, OAuth, Spring Security, Swagger
• Oracle / MySQL / Postgres DB
• Angular / React / React Native
• JIRA, Bitbucket

Must-Have -

• Excellent knowledge of Core Java and Spring
• Strong experience in REST API and web services
• Experience in Oracle / Mysql / Postgres DB
• Should be efficient with Java J2EE and related technologies
• Should have very good communication skills and analytical skills.
• Should have good knowledge in Software Development Life Cycle and Agile methodologies.
• Good knowledge of current / emerging technologies and trends
• Good analytical and problem-solving skills
• Excellent written and verbal communication skills. High levels of initiative and creativity
• Good communication skills with all stakeholders, good team player with the ability to mentor juniors

Good to Have:

• Knowledge in Banking Domain
• Full-stack developers with knowledge and understanding of Javascript and associated technologies like React, Angular, HTML5, CSS will have an advantage.