
- Core Java 5.0 and above
- Extensive experience in developing enterprise-scale n-tier applications for the financial domain.
- 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, preferably Sybase database
- Good knowledge of multi-threading and high volume server side development
- Experience in sales and trading platforms in investment banking/capital markets
- Basic working knowledge of Unix/Linux.
- Strong written and oral communication skills.
- Should have the ability to express their design ideas and thoughts.

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.
Connect with the team
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Job Location
Bengaluru or Remote
Job Summary
Oracle Health is looking for a Software Developer 2 with strong Java and distributed systems experience to build highly available, secure, and scalable healthcare applications. You will design and develop microservices-based backend systems, work with large-scale data, and leverage AI-assisted coding tools to improve developer productivity and code quality. This role is ideal for engineers who enjoy solving complex problems in mission-critical domains like healthcare.
Responsibilities
- Design, develop, and maintain backend services using Java and related frameworks for Oracle Health products.
- Build and optimize distributed, microservices-based architectures with a focus on scalability, performance, and reliability.
- Implement RESTful APIs, event-driven components, and data processing pipelines for high-volume healthcare workloads.
- Use AI-assisted coding tools (e.g., code generation, refactoring, test generation) to increase development speed and quality while following best practices.
- Collaborate with product managers, architects, QA, DevOps, and cross-functional teams to deliver features end-to-end.
- Write clean, testable, and maintainable code with comprehensive unit, integration, and performance tests.
- Participate in code reviews, design discussions, and architectural decisions, contributing to engineering best practices.
- Monitor and troubleshoot production systems, resolving issues related to performance, scalability, and reliability.
- Adhere to security, privacy, and compliance requirements relevant to healthcare solutions.
Required Qualifications
- 3–6 years of professional software development experience.
- Strong programming skills in Java (Java 8+), with solid understanding of OOP, data structures, and algorithms.
- Hands-on experience building and deploying distributed systems and microservices.
- Experience with Spring / Spring Boot or similar Java frameworks.
- Proficiency in designing and consuming RESTful APIs.
- Experience with relational databases (e.g., Oracle, PostgreSQL, MySQL) and ORM technologies.
- Practical experience with CI/CD, version control (Git), and modern development workflows.
- Experience using AI-assisted development tools (e.g., code completion, code generation, test suggestion tools) in day-to-day coding.
- Strong problem-solving skills, ownership mindset, and ability to work in an Agile environment.
- Good written and verbal communication skills in English.
Preferred Qualifications
- Experience with event-driven architectures and messaging systems (e.g., Kafka, RabbitMQ).
- Knowledge of distributed systems concepts such as consistency, fault tolerance, resiliency, and observability.
- Experience with containerization and orchestration (Docker, Kubernetes).
- Exposure to cloud platforms (Oracle Cloud, OCI preferred; AWS/Azure/GCP also relevant).
- Experience with monitoring and logging tools (Prometheus, Grafana, ELK, etc.).
- Background in healthcare, clinical systems, or other regulated domains is a plus.
- Experience with test automation frameworks and performance testing.
- Interest in or experience with applying AI/ML in software engineering (code intelligence, anomaly detection, test optimization).
About Oracle Health
Oracle Health is on a mission to transform healthcare by building secure, intelligent, and scalable cloud-based solutions that improve patient outcomes and provider efficiency. As part of the Oracle Health engineering team, you will work on critical systems that power hospitals, clinics, and health networks globally, with the backing and stability of Oracle’s cloud infrastructure.
Key Skills & Requirements
- Strong proficiency in Java 11 and above
- Hands-on expertise in Spring Boot and Microservices Architecture
- Strong Programming, Analytical, and Problem-Solving skills
- Proficiency with NoSQL Databases (MongoDB, Cosmos DB) and RDBMS (SQL/Oracle/Postgres)
- Experience with Messaging Queues (RabbitMQ/Kafka)
- Good understanding of Functional and Domain knowledge
- Expertise in Project Architecture & Data Flows
- Proficient in CI/CD tools (Jenkins or equivalent)
- Strong experience with Testing Frameworks: JUnit, Mockito, Cucumber, BDD
- Basic knowledge of Cloud Platforms (Azure / AWS)
- Familiarity with Project Management Tools – JIRA, Confluence, ServiceNow
- Monitoring tools knowledge like New Relic, Splunk, Nagios (good to have)
Responsibilities
- Design, develop, and maintain scalable backend applications using Java 11+ and Spring Boot
- Build and manage microservices-based solutions ensuring high performance and low latency
- Collaborate with cross-functional teams to define, design, and ship new features
- Implement best practices for CI/CD pipelines and automate deployment workflows
- Ensure code quality through unit testing, integration testing, and BDD practices
- Work with databases (SQL/NoSQL) for data modeling and optimization
- Monitor, troubleshoot, and enhance system performance using tools like Splunk, New Relic, Nagios
- Provide technical guidance and mentorship to team members

- Drive development and delivery of top notch technology solutions to clients efficiently.
- Lead development of implementation plan, logic and modules to embed in client solutions and client discussion ready documents /presentations.
- Lead in designing, implementing, maintaining and updating applications that are often high-volume and low-latency, required for mission critical systems.
- Lead in refining and improving system stability by continuously refactoring and measuring performance.
- Drive development of actionable, clean, maintainable, testable, reusable, extensible codes, including standardization and automation of processes.
- Provide technical and functional guidance to team members through expert knowledge and hands-on support.
- Manage projects, resource utilization, time schedules and deliveries to clients.
- Proactively drive discussions with stakeholders to understand their business requirements, business context and guide team to provide robust actional solutions.
- Effectively engage with stakeholders – create and nurture and deepen relationships.
- Ensure positive & creative work-environment, culture of collaborations, speak-up, high level of energy & enthusiasm, curiosity to learn and continuous improvement.
- Inspire, engage, motivate and provide constructive feedback to team members to develop their technical & soft skills and fully support their development aspirations.
- Drive researching and conceptualizing solution approaches, new techniques or solution frameworks and author high quality discussion papers.
Qualifications, Skills and Experiences
- BE / BTech / ME / M Tech in engineering or MCA or similar relevant field.
- 2 to 17 years (Junior, Intermediate, Senior Role & we have multiple openings)of relevant hands-on experience and excellent knowledge of Java, Python, SQL, Relational Databases, DB schema or ORM technologies.
- Excellent knowledge and experience of building applications, platforms and services in Java, Python and MS SQL or at least two of them.
- 5 + years of experience of managing projects, team and stakeholders.
- Knowledge and experience of agile methodologies.
- Excellent communication and inter-personal skills.
- Experience of working in a fast-paced environment and make quality decisions in moderately to high ambiguous work environment.
- Previous work experience in financial services, especially, capital markets is preferred.
3 to 5 years of experience in Java with Microservices Experience
- Experience in Spring Boot, Jenkins, Git, Hibernate, Kubernetes, and Docker
- Experience in the development of scalable and extensible systems using Java
- Proficiency in Database technology such as MySQL, Oracle, and MongoDB
- Routines Sync & Async
- Solid and fluent understanding of algorithms and data structures
- Excellent software design, problem-solving and debugging skills
- Demonstrated high ownership in previous projects
- Excellent Communication Skills"
- 4+ years of experience in IT
- Demonstrable expertise in Golang development services, including a deep understanding of its syntax, advanced features, and standard library
- Familiarity with Go routines and channel patterns, as well as experience in writing high-performance Go code
- Solid grasp of web development fundamentals, including HTTP/HTTPS protocols, RESTful API design, data structures, and WebSockets
- Experience with designing and implementing microservices in Go and an understanding of containerization and orchestration technologies like Docker and Kubernetes
• Bachelor’s degree in Computer Science or IT related field
• 4-6 years of experience working across different product domains in a product development/engineering role
• Good communication skills necessary to manage business requests and work with different teams across differ-
ent geographies and time-zones; experience working with remote and distributed teams will be an added ad-
vantage
• Hands-on working knowledge and experience is requiredin:
a. JavaScript, Typescript, NodeJS (Express, NestJs, etc.)
b. Experience working in GCP or AWS or Azure
c. Experience working in Containers & Unix Platforms
d. Relational Databases (PostgreSQL, MySQL, SQL, etc.)
e. Agile Methodologies (Scrum, TDD, BDD, etc.)
f. Understanding of Microservices Architecture, Domain Driver Design, Test Driven Development and
Secure Design patterns and architecture is a must
g. Data Structures and Algorithms using Javascript, Typescriptand/or other Programing Languages
h. Strong organizational skills
i. Agile Methodologies (Scrum, TDD, BDD, etc.)
• Experience with several of the following tools/technologies is desirable:
a. GIT (Bit Bucket, Gitlab, etc.), Jira, Gradle, Maven, Jenkins, SharePoint, Eclipse/IntelliJ.
b. Design Patterns and implementing the Design Patterns
c. Development of Complex Application and System Architectures
d. NoSQL Databases (Redis, Mongo, etc.)
e. Full stack development
f. Experience working with CI/CD pipelines with for example GitHub Actions.
• Knowledge of the following technologies is a plus:
a. Other Programming Languages (Java, Python, etc.)
b. Continuous Integration and Continuous Delivery Tools like Jenkins, Git, etc.
c. Secure Development based on OWASP standards
What essential skills you need
▪ 8-11 years’ experience in back end Java/J2EE application development.
▪ Expertise in developing internet web applications using Java/J2EE technologies.
▪ Experience of working in a service-oriented architecture and web-based development.
▪ Experience in writing XSD, Wiz-dull including parsers like SAX, DOM.
▪ Experience in different modules of Spring framework like Dependency Injection (IoC), Spring MVC, Spring ORM along with JPA.
▪ Experience in Java Version 7.0+. Good experience with JMS, Spring & Hibernate.
▪ Experience in identifying database solutions for a given problem, preferably MySQL.
▪ Demonstrated ability to analyze business/functional requirements, develop well-structured, maintainable code, delivered on time, with automated tests. We are an XP/Agile development team.
▪ Hands on experience on tools like Log4j, JUnit, Mockito, SVN, Maven, Covertura.
▪ Knowledge in Java queuing system.
▪ Extensive Experience in using MVC (Model View Controller) architecture for developing applications using JSP, JSTL, Java Beans and Servlets.
▪ Hands on experience in using Application/Web servers like JBoss and Tomcat servers. Worked on databases like Oracle/MYSQL/NoSQL/HQL.
▪ Experience with e-commerce, retail, analytics, advertising, or media would be an advantage
Good exp in data structures, Java, algorithms, and in design, design patterns.
Exp-2-8yrs
Location- Bangalore, hyderabad, pune, gurgaon.
Regards
sanchita






