
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. - 4 to 7 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 Wissen Technology: Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals. Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’. Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world. Wissen Technology offers an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation. We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
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Job brief
We are looking for a qualified Database developer to design stable and reliable databases, according to our company’s needs. You will be responsible for developing, testing, improving and maintaining new and existing databases to help users retrieve data effectively.
As part of our IT team, you will work closely with developers to ensure system consistency. You will also collaborate with administrators and clients to provide technical support and identify new requirements. Communication and organization skills are keys for this position, along with a problem-solution attitude.
Ultimately, you should be able to ensure our database systems run effectively and securely on a daily basis.
Responsibilities
- Design stable, reliable and effective databases
- Optimize and maintain legacy systems
- Modify databases according to requests and perform tests
- Solve database usage issues and malfunctions
- Liaise with developers to improve applications and establish best practices
- Gather user requirements and identify new features
- Develop technical and training manuals
- Provide data management support to users
- Ensure all database programs meet company and performance requirements
- Research and suggest new database products, services and protocols
Requirements
- Proven work experience as a Database developer (5+ Years)
- In-depth understanding of data management (e.g. permissions, recovery, security and monitoring)
- Knowledge of software development and user interface web applications
- Advanced proficiency and hands on experience with T-SQL, Stored Procedures, Cursors, Triggers, Schedulers etc.
- Familiarity working with MS SQL Server, MySQL, .Net Framework, java
- Excellent analytical and organization skills
- An ability to understand front-end users’ requirements and a problem-solving attitude
- Ability to craft detailed technical manuals.
- Excellent verbal and written communication skills
- BE/MCA/MSc Degree in Computer Science or relevant field.
About Uni
Uni is on a mission to make credit simple, transparent, and truly rewarding.
We’re building the most meaningful rewards card in India - one that puts
customer benefit at the center of every decision.
What You’ll Do
- Design and build scalable, high-performance components from product requirements.
- Write clean, modular, and extensible code with the right data structures and tech stack.
- Contribute to both low-level and high-level design discussions.
- Mentor junior developers and collaborate with cross-functional teams.
- Work in an agile, CI/CD-driven environment.
What You’ll Need
- B.Tech/M.Tech (or equivalent) with 3–5 years of development experience.
- Strong programming skills in Java (or similar languages).
- Expertise in OOP, multi-threading, and concurrency.
- Experience working with complex systems and large data volumes.
- Prior experience in scalable web application development is a plus.
Why Uni Cards
- Collaborative, idea-driven work culture.
- Strong engineering team where every opinion counts.
- Flexible hours, learning opportunities, and a merit-based growth path.
Responsibilities :
- Lead the development of the backend systems for our client's first product.
- Build reliable, secure, and performant backend systems.
- Drive test coverage and continuous delivery automation within the team.
- Mentor and provide feedback to teammates.
- You should have a min of 8 years of software development experience and management.
- Can write code that is readable, maintainable, secure, and performant.
- Know the importance of tests and how to approach writing different types of tests, good intuition for REST API design
- Deep understanding of relational databases, transactions, entity-relationship modeling.
- Comfortable writing highly concurrent systems.
- Experienced in using profilers, tuning garbage collection, optimizing SQL queries.
Desired Skills :
- Golang, Java, Python, Ruby, Node.
Java/J2EE stack
• Design and develop RDandX Network’s microservices and ensure bug free code is pushed to
the deployment pipeline to support large volume of transactions
• Define and communicate the technical design requirements to the Network’s stakeholders
and the Engineering lead
• Responsible for building restful services to integrate with third party services like AdWords
and Facebook marketing API
• Responsible for designing the technical architecture of the different services and
maintaining and upgrading it
• Designing the unit test cases and building the framework for the development team to
enforce the unit testing in all the services
• Be involved and participate in the end to end products’ lifecycle management
• Learn about new technologies and Stay up to date with best practices
• Collaborate with multidisciplinary team of designers, engineers, system administrators and
product team
• Lead the Backend team and manage their day to day activities and work deliverables
Desired Experience
3+ years
Job Description
What You’ll Do
- Design financial systems for scale. Measure, plan, iterate.
- Writing reusable, testable, and efficient code
- Design and implementation of low-latency, high-availability, and performant applications
- Setup and own the engineering architectures built around event sourcing, application sharding, database sharding, service communication mesh, etc.
- The tech: Go, Google Cloud Spanner, Kafka, Redis
What you bring to the table
- 3+ years of experience. Relevant experience is preferred.
- Knowledge of 2 common programming languages - Java & Node / Rust /Python & Go
- Comfortable in linux command line, AWS or GCP
- Strong unit test and debugging skills
- Great communication skills
Bonus if you have…
- Love building great products and engineering systems from scratch
- Are a Self-starter, Hustler and Curious to Learn
- Have an understanding of fundamental design principles behind a scalable application
- Thrive in an early-stage startup environment with less stability and more ambiguity
- Have an interest in financial products and/or cryptocurrency
- 5+ years of software development experience in Java 8+ and Microservices.
- Experience in developing micro services. Experience in developing High Cohesion & Loosely Coupled Micro Services.
- Experienced in skills of requirement, analysis, design, develop, Java, springboot, microservices, rest api, AWS, lambda, EC2, Jenkins, design pattern, spring security, splunk, auth, docker, SOLID
- Hands on experience on Microservices Architecture.
- Should have excellent acumen in Data Structures, algorithms, problem-solving and Logical/Analytical skills. Thorough understanding of OOPS concepts, Design principles and implementation of different type of Design patterns.
- Experience with Multithreading, Concurrent Package and Concurrent APIs
- Basic understanding of Java Memory Management (JMM) including garbage collections concepts.
- Experience in RDBMS or NO SQL databases and writing SQL queries (Joins, group by, aggregate functions, etc.)
- Hands-on experience with Message Broker like Kafka/Rabbitmq or other. Hands-on experience in creating RESTful webservices and consuming web services. Hands-on experience with spring Cloud/Spring Boot.
- Hands-on experience with any of the logging frameworks (SLF4J/LogBack/Log4j)
- Experience of writing Junit test cases using Mockito / Powermock frameworks. Should have practical experience with Maven/Gradle and knowledge of version control systems like Git/SVN etc.
- Hands on experience on Cloud deployment/development like AWS/Azure/GCP.
- Good communication skills and ability to work with global teams to define and deliver on projects. Sound understanding/experience in software development process, test-driven development.
Benefits of Working Here:
- Gender Neutral /Diversified Culture
- 51 Leaves annually
- Insurance covered for family
- Incentives, Bonus
- Permanent WFH Option
- Generous parental leave and new parent transition program
- Flexible work arrangements
- Bachelor/Master's in computer science or relevant fields
- 10+ years of Relevant Experience
- Strong sense of ownership
- Excellent Java and object-oriented development skills
- Experience in building and scaling microservices
- Strong Knowledge in RDBMS & NoSQL databases
- Strong problem-solving skills, technical troubleshooting and diagnosing
- Expected to be a role model for young engineers, have a strong sense of code quality, and enforce code quality within the team
- Excellent understanding of Debugging performance and optimization techniques
- Experience in Java, Mongo, MySQL, AWS technologies, ELK stack, Spring boot, Kafka
- Experience in developing any large scale Experience in cloud technologies
- Demonstrated ability to deliver in a fast-paced environment
Artwork Flow website: https://www.artworkflowhq.com/">https://www.artworkflowhq.com
Bizongo: https://www.bizongo.com">https://www.bizongo.com
Artwork Flow is the Global SAAS platform by Bizongo for Product Packaging Management and Label Proofing. It’s a cloud-based collaboration platform to review & approve creative packaging projects to accelerate new product launch.
We are helping brands across industries such as Food and Beverages, Pharmaceuticals, Cosmetics, Personal Care, Chemicals, Consumer goods, and more. Our capterra score of 4.5 is a testimony to our customer obsession.
We function as a startup within Bizongo and we are looking to onboard driven individuals for Product and Engineering, as we grow Artwork Flow into North America, Europe and other global markets.
We have a few of the best investors on board including the likes of Accel, Chiratae, B-Capital Group, IFC (World Bank group), CDC group and Schroeder Adveq
You’ll be a great fit if you:
- Strong proficiency in Java and building scalable enterprise applications
- Can think of architectural design at scale
- Love solving complex and challenging problems
- Have good knowledge of design and architectural patterns
- Thrive to implement Industry’s best practices and coding standards
- High obsession for Quality and Performance
- Good knowledge on performance optimization, SQL tuning, caching techniques
- Like to collaborate with people, share knowledge, learn from others and mentor juniors
Additional Perks -
- Medical Insurance
- Flexible Work hours
- Casual Dress Code
- Recreational Facility














