Java Lead

Key Responsibilities

• Design, develop, and maintain scalable backend applications using Java and Spring Boot.
• Develop and maintain RESTful APIs following best practices.
• Implement API versioning strategies to support backward compatibility.
• Create and maintain API documentation using Swagger/OpenAPI.
• Implement Spring Transaction Management to ensure data integrity
• Use Spring Data JPA for database interactions and ORM mapping
• Write efficient SQL queries and optimize database performance
• Implement CQRS (Command Query Responsibility Segregation) where applicable.
• Develop systems based on event-driven architecture patterns.
• Write unit tests using JUnit and Mockito.
• Build and manage projects using Maven or Gradle build scripts.
• Use AI coding assistants such as Gemini Code Assist or similar tools to improve development efficiency.
• Participate in code reviews, design discussions, and architecture decisions.
• Collaborate with frontend teams, DevOps engineers, and product stakeholders.
• Strong problem-solving and debugging abilities
• Ability to design highly scalable backend systems
• Experience working in Agile/Scrum environments
• Good communication and collaboration skills
• Strong code quality and clean architecture mindset

Optional / Good to Have Skills

• Experience with Docker
• Knowledge of Kubernetes
• Experience with GraphQL API development
• Experience with cloud platforms (GCP / AWS / Azure)

Candidates from Supply Chain , Retail preferred

Company Name – Wissen Technology

Group of companies in India – Wissen Technology & Wissen Infotech

Work Location - Bangalore/Mumbai

Java Developer – Job Description

Wissen Technology is now hiring for a Java Developer - Mumbai 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. - 5+ 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.

Job Title: Java Developer

Location: Chennai

Experience: 3+ Years

Employment Type: Full-time

Job Description:

We are looking for a skilled and passionate Java Developer with a strong foundation in Core Java and Object-Oriented Programming concepts. The ideal candidate should possess excellent communication skills and have hands-on experience with multi-threading, collections, databases, and backend development frameworks like Spring and Spring Boot. Exposure to cloud platforms and frontend technologies is a plus.

Key Responsibilities:

• Design, develop, and maintain scalable Java applications using Core Java and Spring Boot.
• Apply strong knowledge of Java Collections Framework and concurrent programming techniques including ExecutorService, ForkJoinPool, and other threading mechanisms.
• Optimize JVM performance and memory usage.
• Participate in all phases of the software development lifecycle: requirement gathering, design, development, testing, and deployment.
• Write clean, maintainable code following best practices, coding standards, and design patterns.
• Conduct code reviews, unit testing, and participate in peer programming.
• Collaborate effectively with team members and stakeholders to deliver high-quality solutions.
• Interact with databases like Oracle, Sybase, or SQL Server, with a strong understanding of views, triggers, indexing, and stored procedures.

Must-Have Skills:

• 3+ years of hands-on experience in Core Java
• Strong understanding of Collections, Multithreading, and Concurrency
• Proficient in Spring Framework, especially Spring Boot
• Deep understanding of Object-Oriented Design and Data Structures
• Strong experience in RDBMS (Sybase/Oracle/SQL Server) including indexing, replication, CLOB/BLOB types, views, and procedures
• Excellent written and verbal communication skills

Good to Have:

• Exposure to Microservices architecture
• Familiarity with NoSQL databases
• Knowledge or willingness to work on frontend technologies
• Experience working with public cloud platforms (AWS, Azure, GCP)

Soft Skills:

• Strong analytical and problem-solving skills
• Team player with a proactive attitude
• Ability to work independently and in a fast-paced environment

If you are passionate about Java development and want to work on cutting-edge technologies in a collaborative environment, we would love to hear from you.

Let me know if you want this converted into a company-branded format or with CTC/NP details added.

• 5to 7 years plus experience having implemented Adobe Experience Manager based Solution in a large scale environment
• Deep understanding of Adobe AEM, Apache Sling, Servlets
• Experience developing applications, templates, and components for the Adobe AEM product (WCM, DAM, CRX)
• Experience customizing workflows and integration with other enterprise systems
• Demonstrated experience with Java, JavaScript, HTML5, CSS3, and related technologies
• Expertise in Java, web development experience, and other Content management system experience.
• Great understanding of Web technologies like XML, HTML, Client Server-side scripting languages such as JavaScript, JSP, and web services development using RESTful implementations.
• Should have exposure on the continuous integration build tools and code quality tools

Responsibilities

• Develop digital consumer experiences based on a foundation of the Adobe AEM product suite, including AEM, CRX, Target, and DAM
• Translate marketing and website needs into AEM specific recommendations and solutions
• Leverage AEM, other state-of-the-art technologies, and integration patterns to solve cross-departmental challenges
• Design and improve internal development methodologies around Adobe AEM solution
• Develop front end and back end components using AEM

Job Description:

• Must have experience of 1 – 6 years.
• Experience in Java/J2EE platform.
• Experience in web application development with JSP, Servlet, Spring Boot, Hibernate
• Knowledge of MySQL database.
• Developed REST and SOAP web services..
• Experience in version control system and build tool
• Must have completed BE/MCA/M.Sc/MTech.

Data Platform engineering at Uber is looking for a strong Technical Lead (Level 5a Engineer) who has built high quality platforms and services that can operate at scale. 5a Engineer at Uber exhibits following qualities: 

• Demonstrate tech expertise › Demonstrate technical skills to go very deep or broad in solving classes of problems or creating broadly leverageable solutions. 
• Execute large scale projects › Define, plan and execute complex and impactful projects. You communicate the vision to peers and stakeholders.
• Collaborate across teams › Domain resource to engineers outside your team and help them leverage the right solutions. Facilitate technical discussions and drive to a consensus.
• Coach engineers › Coach and mentor less experienced engineers and deeply invest in their learning and success. You give and solicit feedback, both positive and negative, to others you work with to help improve the entire team.
• Tech leadership › Lead the effort to define the best practices in your immediate team, and help the broader organization establish better technical or business processes.

What You’ll Do

• Build a scalable, reliable, operable and performant data analytics platform for Uber’s engineers, data scientists, products and operations teams.
• Work alongside the pioneers of big data systems such as Hive, Yarn, Spark, Presto, Kafka, Flink to build out a highly reliable, performant, easy to use software system for Uber’s planet scale of data. 
• Become proficient of multi-tenancy, resource isolation, abuse prevention, self-serve debuggability aspects of a high performant, large scale, service while building these capabilities for Uber's engineers and operation folks.

What You’ll Need

• 7+ years experience in building large scale products, distributed systems in a high caliber environment.
• Architecture: Identify and solve major architectural problems by going deep in your field or broad across different teams. Extend, improve, or, when needed, build solutions to address architectural gaps or technical debt.
• Software Engineering/Programming: Create frameworks and abstractions that are reliable and reusable. advanced knowledge of at least one programming language, and are happy to learn more. Our core languages are Java, Python, Go, and Scala.
• Platform Engineering: Solid understanding of distributed systems and operating systems fundamentals such as concurrency, multithreading, file systems, locking etc.
• Execution & Results: You tackle large technical projects/problems that are not clearly defined. You anticipate roadblocks and have strategies to de-risk timelines. You orchestrate work that spans multiple teams and keep your stakeholders informed.
• A team player: You believe that you can achieve more on a team that the whole is greater than the sum of its parts. You rely on others’ candid feedback for continuous improvement.
• Business acumen: You understand requirements beyond the written word. Whether you’re working on an API used by other developers, an internal tool consumed by our operation teams, or a feature used by millions of customers, your attention to details leads to a delightful user experience.