Java Microservices Developer

Job Summary:

We are looking for a highly skilled and experienced Java Backend Developer with 4.5+ years of hands-on experience in backend development, system design, and API integration. You’ll play a key role in designing and building high-performance backend systems that are scalable, secure, and reliable. As a core member of the engineering team, you’ll collaborate closely with product owners, architects, and other developers to deliver quality solutions.

Responsibilities:

• Design and develop backend components, REST APIs, and microservices using Java and Spring Boot.
• Contribute to the architectural decisions and system design discussions.
• Write clean, efficient, and testable code following best practices.
• Optimize application performance, scalability, and reliability.
• Integrate third-party APIs and work with external systems.
• Participate in code reviews, mentor junior developers, and support the team’s technical growth.
• Work closely with DevOps to support CI/CD pipelines and deployments.
• Troubleshoot and resolve complex issues in production and non-production environments.
• Keep up with industry trends and advocate for best practices in backend development.
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Required Skills:

• 4.5+ years of hands-on experience in backend development with Java (Java 8 or above).
• Strong expertise in Spring Framework (Spring Boot, Spring MVC, Spring Data).
• Experience designing and consuming RESTful APIs and working with microservices architecture.
• Solid understanding of relational and NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB).
• Proficient with version control systems like Git and tools like Maven or Gradle.
• Familiarity with Docker, containerization, and cloud platforms (AWS/GCP/Azure).
• Experience with unit testing and integration testing (JUnit, Mockito, etc.).
• Good knowledge of software design principles, data structures, and algorithms.
• Excellent problem-solving skills and attention to detail.

Java Developer – Job Description  

Wissen Technology is now hiring 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 consultancy.  

Required Skills:  

• Exp. - 2 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 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. 

Job Role 

·  Position Title: Expert Java Engineer

·  Experience Range: 9 to 12 yrs 

·  Location: Pune 

Notice Period : Immediate Joiner

Must have Requirements

● 9+ years’ of experience working as a software developer.

● Strong proficiency in Java and Spring Boot.

● Strong experience in building applications that interact with relational databases using SQL.

● Some experience of Enterprise Java (J2EE / JavaEE / Spring) application architectures.

● History of delivering high-cadence modern applications with applied Agile methodologies, test-first development approaches, adopting CI/CD pipelines and using Git version control.

• - Strong architecture and design skills and keen business sense.
• - Strong core server-side technologies experience (Java), database design & performance tuning exposure.
• - Strong OO design skills, knowledge of frameworks such as Spring/ Spring Boot/ exposure to functional programming a plus.
• - Good knowledge of nodeJS/ noSQL a definite plus.
• - Good exposure to front end/UI skills (JS, HTML, Angular).
• - Good exposure to configuration management, testing, deployment.
• - Deep knowhow of data structures, algorithms.
• - Hands on development across technologies

Product Responsibilities:

As an Engineering Manager, you will be responsible for the end-to-end delivery of one or more products and solutions.

10+ years of relevant industry experience.

Be technically strong and deliver product excellence.

Collaborate with your team and cross-functional partners to define and influence strategy.

Drive roadmap creation and execution.

Collaborate with various functions, drive engineering initiatives, and have an impact at an organizational level.

Participate in technical design. You will be the owner of the technical direction of the products.

Define clear OKRs and measure the impact of your team and individual members.

Evangelize your products across various teams and also to external customers.

Work with the GTM team to deliver success for the products.

Collaborate with the Recruitment/HR team to hire exceptional talent for your own team and also for other teams.

Minimum Qualifications:

Bachelor degree preferably in Computer Science from a reputed engineering college.

10+ years of proven experience, with 2+ years of leading a team.

Very strong in hands-on coding.

8+ years of combined experience in JVM languages(Java, Scala, Kotlin, etc), any scripting language like python, relational and non-relational databases.

Very strong in system design. You should have designed and implemented large-scale Web applications or data systems.

Strong verbal and written communication skills.

Demonstrated experience recruiting and managing technical teams, including performance management.

Good to have:

Don't worry, we'll ramp you up, but experience in any of these areas will help you hit the ground running:

Familiarity with technologies such as Apache Spark, Apache Hadoop ecosystem, and modern warehouses like Snowflake, AWS Redshift, etc.

Experience working with public cloud systems such as AWS, GCP, or Azure.

Experience with containerization and technologies such as Kubernetes and Docker.

 Knowledge of large-scale, data-heavy distributed systems.

About Numen (https://numenhealth.com):
Numen Health is a Health-tech company with a goal to reimagine healthcare in India. Through an amalgamation of our healthcare team with the power of AI and the Internet of Things (IoT), we make healthcare easier and accessible through a data-based preemptive approach. Our mission is to facilitate change in the healthcare industry by moving from a reactive approach to a proactive one.
We are a wonderful, young team with experience in scaling up Indian and international businesses from the ground up. We are looking for like-minded and enthusiastic people who are passionate about making a lasting difference and want to help us revolutionize the way healthcare is delivered to a billion Indian!

Our Vision:
To shift the healthcare ecosystem from a ‘Sick-care' approach to a ‘Holistic-healthcare' approach. We aim to do that by enabling doctors and caregivers to move from treating ailments to employing a data-based,
preemptive approach.
About Product:
We offer preventive healthcare programs to individuals to improve their health. These plans are crafted in consultation with their treating doctor and a dedicated care team remotely monitors the progress in real[1]time. For doctors, Numen is a virtual facility to cater to all of their patient’s needs, remotely.
Why Join?
At Numen, you have the opportunity to make tangible changes to the existing healthcare systems in India
making it preventive and affordable. By joining the Numen team, you get to be part of a young, dynamic
team that is passionate about making a change and a fast-paced environment with multiple opportunities to
learn and grow.

Job Overview:
Numen Health is looking for Tech Lead to join our Engineering team and lead all stages of the software product development life cycle. This will include analyzing system and user requirements, designing software flowcharts, writing clean Java code, troubleshooting bugs, and running tests to improve system functionality.
If you are a person who has proficiency in Java technologies, good analytical skills, the ability to design software systems and anticipate issues, and frame remedial actions with excellent teamwork skills; We
would like to speak to you.

Responsibilities:
1. Design, develop, scale, and maintain backend services in Java
2. Collaborate with the engineering and product team to discuss project definitions and goals.
3. Work on individual priorities, deadlines, and deliverables.
4. Improve reliability, scalability, observability, and security of the backend systems.
5. Write simple, efficient, and maintainable code
6. Function well in a fast-paced, rapidly changing environment
7. Ensuring best coding standards and practices to improve and maintain quality.

Requirements:
8. Bachelor/Master degree in CS or related field from a reputed college
9. Sound knowledge of Java technologies.
10. Solid grip on the programming basics like DS and algorithms, OOPS.
11. Experience with software design and application programming
12. Understanding & experience with software design patterns, restful APIs, and microservice
architecture
13. Experience with software design and application programming
14. Strong debugging skills
15. Exposure to CI/CD and Test-Driven Development
16. Nice to have are Unix / Linux, database SQl / NoSQL, Java Spring, working knowledge on
scripting (Perl, Shell Scripting).

Prior Experience:
17. 5 - 8 years of experience in java development
18. A hustler with the capability to think out of box and hence prior experience with Startups would
be a plus.
19. Understanding or Experience in Health-Tech is good to have
20. Good To have a Team Lead / Mentorship Experience.

Essential Requirements:

• 5+ years of Software development experience
• Hands on development experience using Java technology stack with focus on architecture and design.
• Hands-on in Java Programming, J2EE, Spring or SpringBoot, Hibernate, RestAPI, Data Structures, Design Patterns, Oracle Database, PL/SQL
• Experience in application servers with prime focus on Tomcat.
• Experience in messaging systems such as RabbitMQ.
• Experience working in Linux/Unix environments. Must be hands on with Object Oriented concepts along with passion for design patterns and applicability.
• Relevant experience in Java frameworks like Spring Microservices, Spring-Boot, Hibernate, JPA etc.
• Understanding of developer testing practices and the differences between unit, functional, and system tests,
• Should have working experience in a CI/CD environment where build & test is automated.
• Should have working experience in tools like Maven, Jenkins, Bamboo etc.
• Should have used testing Frameworks such as JUnit, Selenium
• Ability to quickly learn and apply new concepts or principles
• Ability to work effectively as part of global team
• Experience working in an agile environment.
• Experience in Azure and AWS Development and Deployment, Active Directory, Containerization.