
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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Role & Responsibilities
What You'll Do
- Design, build, and ship production-grade backend services in a microservices environment
- Work directly with clients to understand requirements, solution their use cases, and integrate/deploy our product in their environment
- Own problems end-to-end — build, deploy, debug in the client's setup, and see it through to production
- Lead technical discussions with client engineering and business teams, translating their needs into working solutions
- Build integrations with third-party systems and APIs within customer environments
- Collaborate cross-functionally with internal product and engineering teams to feed client learnings back into the product
Ideal Candidate
- Strong Backend Engineer with robust Micro-services experience
- Mandatory (Experience): Must have 4+ years of hands-on experience in backend software engineering with 2+ years in a product company
- Mandatory (Skill 1): Must have hands-on experience building and running applications in a Micro-services setup - designing services, REST APIs, and service-to-service communication
- Mandatory (Skill 2): Must have strong production-grade experience in building and shipping real services in Java or Node.js (Java is highly preferred)
- Mandatory (Company): Product companies (B2B SaaS is preferred)
- Mandatory (Education): B.Tech / B.E. in Computer Science from Tier-1 institutes (IITs, BITS Pilani)
- Preferred (Experience): Must have worked directly with external customers in an engineering capacity - solutioning, integrating, or deploying the product in the customer's environment and handling technical discussions with their teams
- Preferred (Databases): Comfortable with both SQL and NoSQL databases
Strong Backend Engineer Profiles
Mandatory (Experience 1) – Must have 2+ years of hands-on Backend Engineering experience building production-grade systems in a B2B SaaS or product environment
Mandatory (Experience 2) – Must have strong backend development experience using at least one backend framework such as FastAPI / Django (Python), Spring (Java), or Express (Node.js)
Mandatory (Experience 3) – Must have a solid understanding of backend fundamentals, including API development, service-oriented architecture, data structures, algorithms, and clean coding practices
Mandatory (Experience 4) – Must have strong experience working with databases (SQL and/or NoSQL), including efficient data modeling and query optimization
Mandatory (Experience 5) – Must have experience designing, building, and maintaining APIs and backend services, including integrations with external systems (CRMs, payment gateways, ERPs, data platforms, etc.)
Mandatory (Experience 6) – Must have experience working in cloud-based environments (AWS / GCP / Azure) and be familiar with Git-based collaborative development workflows
Mandatory (Domain) – Experience with financial systems, billing platforms, fintech applications, or SaaS revenue-related workflows is highly preferred
Mandatory (Domain) – Experience with financial systems, billing platforms, or fintech applications is highly preferred (fintech background is a strong plus)
Mandatory (Company) – Must have worked in product companies / startups, preferably Series A to Series D
Familiarity with Agile development methodologies.
• Areas of expertise: Go, Electron, NodeJs.
• Developer in Linux and Windows environments
• Proficient in software development tools such as IDEs, debuggers, profilers, source control systems.
• Strong in coding languages (e.g. C, C++, Go, Java) and frameworks (e.g. NodeJs, Electron, Git)
Preferred Qualifications
The ideal candidate will possess the following experience:
• Good subject matter expertise with Kubernetes, Docker and other container orchestration tool.
• Practical experience developing, testing and operating a service in a hybrid cloud.
• Outstanding coding/scripting skills, preferably in Go.
• Experience with Linux/Unix
• Experience in Jenkins and CI/CD environment
• Strong oral and written communication skills
Looking for a Senior Java technologist at Bangalore.
This position is with a fast growing Ecommerce Startup.
Kindly Refer To The Below Pointers :
- Hands on experience in developing Java with OOAD, Datastructures, Mullithreading
Technical Architect responsible for SDLC, designs, developer mentoring, code reviews, hands on implementations.
- Strong proficiency in Java, design patterns.
Key Responsibilities
- Back-end Implementation: Authorization, Authentication, Modular design
- Application Development: Documentation, code quality, Unit Testing, Optimization, Bug fixing.)
- Back-end Operations (build tools, deployment, speed: (app, tests, builds, deploys), monitoring errors/logs, and stability).
- Review the created data model & ask any necessary clarifying questions before starting on work
- Write API code to implement the action on visual elements.
- Develop Json Web Services and Web applications.
- Create prototypes and staging sites for review and feedback
- Optimize websites and applications to ensure fast loading speeds
- Maintain websites and implement any necessary additions or enhancements
- Identify and troubleshoot various website issues and coding problems
- Collaborate with members of the website team, including designers and front-end developers, to consistently improve functionality and user-friendliness of web applications
- Maintain updated knowledge of the development industry and any advancements in technology
- Meet tight deadlines as required
- Knowledge of the common application/web security and OWASP vulnerabilities.
- Knowledge of the encryption algorithms to protect sensitive information.
- Knowledge of PII, PCI, HIPPA, and GDPR compliance and how to implement.
- Understanding of security breaches of data-in-transit and data-at-rest and knowledge in implementation for both.
- Knowledge/Aware of finding the vulnerabilities of the third-party components/libraries used in the application and remediating vulnerabilities.
Technical Skills: Java,Spring boot, Rest API, Json, JPA and/or Hibernate, SQL, AWSDatabase : MySQL, PostgreSQL, SQL Server, MongoDBOther : Tomcat, Eclipse, Oauth, JWT, Git.
Responsibilities:
- Programming
- Full stack system development
- Product Design
- Technical risk assessment and estimation
- Technical investigation/research, assessment, and recommendation
- Providing solutions and preparing proof-of-concept for technical proposals and demonstrations
- Product maintenance and support
Qualifications:
- Bachelor's degree in computer science, Computer Engineering, or any course related to Information Technology, Engineering and Mathematics
- Ability to execute full software development life cycle (SDLC)
- 1+ year experience in product development
- 1+ years Java development experience
- 1+ year experience in agile product development methodology/process
- Develop flowcharts, layouts, and documentation to identify requirements and solutions
- Experience of relational databases, SQL / MySql / PL SQL / Oracle
- Experience in JAVA Frameworks (Spring / Spring MVC / Spring boot / Hibernate)
- Integrate software components into a fully functional software system
- Develop software verification plans and quality assurance procedures
- Document and maintain software functionality
- Troubleshoot, debug and upgrade existing systems
- Experience in Unit testing is a plus
Knowledge in:
- JavaScript / ES6 / JavaScript Reactive Framework (Vue.js / java servlets is a huge plus)
- REST Concepts
- VCS - Git
- AWS
- Excellent programming and problem-solving skills
- Experience with test-driven development
- Good communication skills
- Fast learner, detail-oriented
- Able to work under pressure
- Self-managing and able to collaborate with offsite team members
- Can render extra hours whenever necessary.
Training
After a rigorous training program of up to one month, you'll immediately get to work on one of our projects. We're working on mission-critical government systems or commercial products that are levelling up the way the world does business.

- 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
About Company: Ramphal Technologies is an Indian startup company. The company was founded by a visionary team of founders having a vast experience in Technology.
The company has a long term vision to disrupt the Indian Air Traffic scenario through technology Innovation. The Govt. Of India has officially signed a MOA with us to
build the next generation Technology platform to manage the Air Traffic in India.
About Opportunity: We have an exciting career opportunity for you where you will be part of developing a mission critical real time IT system. <<and explain the position>>
This role gives you an opportunity to disrupt how both manned and unmanned flights are going to fly in future. Your software will run in every Indian/Global Airport
and your work will keep the flight journey safe and efficient.
Java 8
Spring Boot
Microservices
Data Structures
Algorithms
Multithreading
Who are able to work individual as well as Team work with Good Speed and accurecy.






