Sr. Java Developer

Java GS 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. - 2- 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 Java GS 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 

Job Responsibility ::

• Proficiency in Java, with a good understanding of its ecosystems
• Sound knowledge of Object-Oriented Programming (OOP) Patterns and Concepts
• Familiarity with different design and architectural patterns
• Skill for writing reusable Java libraries 
• Knowhow of Java concurrency patterns
• Basic Understanding of the concepts of MVC (Model-View-Controller) Pattern, JDBC (Java Database Connectivity), and RESTful web services
• Experience in working with popular web application frameworks like Play and Spark
• Relevant Knowledge of Java GUI frameworks like Swing, SWT, AWT according to project requirements
• Ability to write clean, readable Java code
• Basic knowhow of class loading mechanism in Java
• Experience in handling external and embedded databases
• Understanding basic design principles behind a scalable application
• Skilled at creating database schemas that characterize and support business processes
• Basic knowledge of JVM (Java Virtual Machine), its drawbacks, weaknesses, and workarounds
• Implementing automated testing platforms and unit tests 
• In-depth knowledge of code versioning tools, for instance, Git
• Understanding of building tools like Ant, Maven, Gradle, etc
• Expertise in continuous integration

Other required skills of java developer include the basic knowledge of:

• Java Server pages (JSP) and servlets
• Web frameworks like Struts and Spring
• Service-oriented architecture 
• Web Technologies like HTML, JavaScript, CSS

Position-Tech Lead

Experience: 8-10

Job Location: Pune 

We are seeking a highly skilled Tech Lead with strong expertise in Java, microservices architecture, and cloud-native application development. The ideal candidate will bring hands-on leadership experience in designing scalable solutions, guiding development teams, and collaborating with DevOps engineers on OpenShift (OCP) platforms. This role requires a blend of technical leadership, solution design, and delivery ownership.

Key Responsibilities

Lead the design and development of Java / Spring Boot based microservices in a cloud-native environment.

Provide technical leadership to a team of developers, ensuring adherence to coding, security, and architectural best practices.

Collaborate with architects and DevOps engineers to deploy and manage microservices on Red Hat OpenShift (OCP).

Oversee end-to-end delivery including requirement analysis, design, development, code review, testing, and deployment.

Define and implement API specifications, integration patterns, and microservices orchestration.

Work closely with DevOps teams to integrate CI/CD pipelines, containerized deployments, Helm, and GitOps workflows.

Ensure application performance, scalability, and reliability with proactive observability practices (Grafana, Prometheus, etc.).

Required Skills & Qualifications

8-10 years of proven experience in Java application development with at least 4+ years in microservices architecture.

Strong expertise in Spring Boot, REST APIs, JPA/Hibernate, and messaging frameworks (Kafka, RabbitMQ, etc.).

Hands-on experience with containerization (Docker) and orchestration (OpenShift/Kubernetes).

Familiarity with OCP DevOps practices including CI/CD (ArgoCD, Tekton, Jenkins), Helm, and YAML deployments.

Good understanding of observability stacks (Grafana, Prometheus, Loki, Alertmanager) and logging practices.

Solid knowledge of cloud-native design principles, scalability, and fault tolerance.

Exposure to security best practices (OAuth, RBAC, secrets management via Vault or similar). 

Job description

JD - Java Developer (Backend Developer)

Technical Requirement:

• At least 5 years of experience in Java, J2EE technologies.
• Expertise in doing development using Java, Spring Boot, Spring modules (Spring Security, Spring MVC, Spring Data JPA, etc.), Hibernate, Web Services
• Worked on REST web services.
• Worked on application server : Tomcat
• Worked on Eclipse IDE
• Knowledge of Swagger, Postman
• Worked on Database like MySQL
• Worked on Git, Maven, CI/CD pipelines
• Good to have knowledge of using Docker and Mongo DB

Overall Roles & responsibilities:

• Consult with client team to understand business requirements and with solution architects / team lead to understand the application architecture.
• Develop/code applications following specifications using the appropriate tools and adhering to the standard coding standards.
• Coordinate unit testing, integration testing and bug fixing with the development and quality assurance team.
• Plan for defect fixes as per priority and severity mentioned by QA team.
• J Attend daily scrum meeting with entire team and client.

Required Skills:

• 3+ year of experience in Development in JAVA technology.
• Strong Java Basics
• SpringBoot or Spring MVC
• Hands on experience on Relationl Databases (SQL query or Hibernate) + Mongo (JSON parsing)
• Proficient in REST API development
• Messaging Queue (RabitMQ or Kafka)
• Microservices
• Any Caching Mechanism
• Good at problem solving

Good to Have Skills:

• 4+ years of experience in using Java/J2EE tech stacks
• Good understanding of data structures and algorithms.
• Excellent analytical and problem solving skills.
• Ability to work in a fast paced internet start-up environment.
• Experience in technical mentorship/coaching is highly desirable.
• Understanding of AI/ML algorithms is a plus.

• Java / J2ee Development environments
• Eclipse or similar tooling
• Very Strong Web front end development including JavaScript, Angular, React, etc.
• Develop REST based microservices using Spring, SpringBoot, SpringCloud, SpringListener, SpringMVC, JavaScript, HTML, XML, JUNITS Cloud, container image development and container orchestration

Skills Required:

• Angular, Spring Springboot, SQL Server

Experience Preferred:

• Looking for a full stack developer with Strong Front end experience, Spring Springboot, SQL Server, GCP

We are looking for a Java/Full stack Developer with experience in building high-performing, scalable, enterprise-grade applications.

You will be part of a talented software team that works on mission-critical applications. Java developer roles and responsibilities include managing Java application development while providing expertise in the full software development lifecycle, from concept and design to testing.

Java developer responsibilities include designing, developing and delivering high-volume, low-latency applications for mission-critical systems.

Experience : 2+ years

Location : Work from Home (full time)

Notice Period : 0 to 30 days ( Immediate joiners are preferred)

Roles & Responsibilities :

(This role encompassing both API engineering using Java stack and web development. Experience in designing, developing, testing and successfully deploying critical and complex projects.)

• Contribute in all phases of the development lifecycle

• Write well designed, testable, efficient code

• Ensure designs are in compliance with specifications

• Prepare and produce releases of software components

• Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review

• Build reusable code and libraries for future use

Required Skill set :

• Java background with a minimum of 2 years experience in Java technologies.

• Experience in designing and developing application backend using frameworks like Spring Boot, Spring MVC, Jersey, JPA, Hibernate, SQL, Linux, JSON, XML, OAuth etc.

• Add on : Experience with frontend technologies like CSS,HTML,Javascript, NodeJS/Express, Angular, React, ExtJS, Vue is preferred

• Experience with both SQL and NoSQL database systems and writing SQL queries

• Strong experience building, designing, and consuming Restful web services.

• Exposure of Cloud Infrastructure - AWS and Alibaba Cloud

• Excellent understanding of ORM and Database concepts

• Experience with developing unit test code using JUNIT, Power Mock/EasyMock/Mockito etc.

• Experience with Git, Maven and CI/CD pipelines to deploy on Cloud applications

• Experience & knowledge on Micro services Architecture and API development using Java, spring, Spring Boot

• Experienced in roles conducting requirements gathering, writing user stories, creating application design and using design patterns

• Good knowledge on credentials/secrets management and data encryption techniques

• Good knowledge on coding standards, design patterns, unit testing.

• Good hands - on BitBucket/Github is preferred.

Sr. Backend Developer | Disruptive HR Tech Platform | GGN

What you need to have:

Experience: 4 to 7 years