
- Strong hands on in Core Java, OOPS, Exception handling, Multi-Threading, Generics and design patterns.
- Proficient in designing and developing web applications using Java/JEE
- Working experience in Spring Boot, Spring Integration and REST Web services
- Exposure to UI technologies/frameworks like JavaScript, React JS , Flux and knowledge of CSS, HTML etc
- Build tools like Maven.
- Should possess good communication skills and a go getter attitude.
- Good in debugging code through eclipse and browsers
- Should be capable to work independently. Desirable
- Experience in any Continuous Integration/Delivery tools like GIT, Docker, Jenkins, Ansible
- Working knowledge of database like Oracle and application server like Tomcat, WebLogic.
- Knowledge of Linux
- Exposure to any test automation technologies such as Selenium, Fitnesse, Mockito, Junit, any other testing frameworks
- Candidate must to have exposure to working in a fast-paced environment using Agile methodologies
- A person with technical thrust who keeps him up to date with latest technology trends, practices, patterns etc. Knowledge of Open Source tools and technologies

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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 the Company-
AdPushup is an award-winning ad revenue optimization platform and Google Certified Publishing Partner (GCPP), helping hundreds of web publishers grow their revenue using cutting-edge technology, premium demand partnerships, and proven ad ops expertise.
Our team is a mix of engineers, marketers, product evangelists, and customer success specialists, united by a common goal of helping publishers succeed. We have a work culture that values expertise, ownership, and a collaborative spirit.
Job Overview- Java Backend- Lead Role :-
We are seeking a highly skilled and motivated Software Engineering Team Lead to join our dynamic team. The ideal candidate will have a strong technical background, proven leadership experience, and a passion for mentoring and developing a team of talented engineers. This role will be pivotal in driving the successful delivery of high-quality software solutions and fostering a collaborative and innovative work environment.
Exp- 5+ years
Location- New Delhi
Work Mode- Hybrid
Key Responsibilities:-
● Leadership and Mentorship: Lead, mentor, and develop a team of software engineers, fostering an environment of continuous improvement and professional growth.
● Project Management: Oversee the planning, execution, and delivery of software projects, ensuring they meet quality standards, timelines, and budget constraints.
● Technical Expertise: Provide technical guidance and expertise in software design, architecture, development, and best practices. Stay updated with the latest industry trends and technologies. Design, develop, and maintain high-quality applications, taking full, end-to-end ownership, including writing test cases, setting up monitoring, etc.
● Collaboration: Work closely with cross-functional teams to define project requirements, scope, and deliverables.
● Code Review and Quality Assurance: Conduct code reviews to ensure adherence to coding standards, best practices, and overall software quality. Implement and enforce quality assurance processes.
● Problem Solving: Identify, troubleshoot, and resolve technical challenges and bottlenecks. Provide innovative solutions to complex problems.
● Performance Management: Set clear performance expectations, provide regular feedback, and conduct performance evaluations for team members.
● Documentation: Ensure comprehensive documentation of code, processes, and project-related information.
Qualifications:-
● Education: Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.
● Experience: Minimum of 5 years of experience in software development.
● Technical Skills:
○ A strong body of prior backend work, successfully delivered in production. Experience building large volume data processing pipelines will be an added bonus.
○ Expertise in Core Java.
■ In-depth knowledge of the Java concurrency framework.
■ Sound knowledge of concepts like exception handling, garbage collection, and generics.
■ Experience in writing unit test cases, using any framework.
■ Hands-on experience with lambdas and streams.
■ Experience in using build tools like Maven and Ant.
○ Good understanding and Hands on experience of any Java frameworks e.g. SpringBoot, Vert.x will be an added advantage.
○ Good understanding of security best practices. ○ Hands-on experience with Low Level and High Level Design Practices and Patterns.
○ Hands on experience with any of the cloud platforms such as AWS, Azure, and Google Cloud.
○ Familiarity with containerization and orchestration tools like Docker, Kubernetes and Terraform.
○ Strong understanding of database technologies, both SQL (e.g., MySQL, PostgreSQL) and NoSQL (e.g., MongoDB, Couchbase).
○ Knowledge of DevOps practices and tools such as Jenkins, CI/CD.
○ Strong understanding of software development methodologies (e.g., Agile, Scrum).
● Leadership Skills: Proven ability to lead, mentor, and inspire a team of engineers. Excellent interpersonal and communication skills.
● Problem-Solving Skills: Strong analytical and problem-solving abilities. Ability to think critically and provide innovative solutions.
● Project Management: Experience in managing software projects from conception to delivery. Strong organizational and time-management skills.
● Collaboration: Ability to work effectively in a cross-functional team environment. Strong collaboration and stakeholder management skills.
● Adaptability: Ability to thrive in a fast-paced, dynamic environment and adapt to changing priorities and requirements.
Why Should You Work for AdPushup?
At AdPushup, we have
1. A culture of valuing our employees and promoting an autonomous, transparent, and ethical work environment.
2. Talented and supportive peers who value your contributions.
3. Challenging opportunities: learning happens outside the comfort-zone and that’s where our team likes to be - always pushing the boundaries and growing personally and professionally.
4. Flexibility to work from home: We believe in work & performance instead of measuring conventional benchmarks like work-hours.
5. Plenty of snacks and catered lunch.
6. Transparency: an open, honest and direct communication with co-workers and business associates.
Java developer roles will vary greatly depending on companies and job positions. Here are some typical roles and responsibilities of java developers:
- Contribute to all stages of software development lifecycle
- Design, implement and maintain Java-based applications that can be high-volume and low-latency
- Analyze user requirements to define business objectives
- Envisioning system features and functionality
- Define application objectives and functionality
- Ensure application designs conform with business goals
- Develop and test software
- Identify and resolve any technical issues arising
- Create detailed design documentation
- Propose changes to current Java infrastructure
- Develop technical designs for application development
- Develop multimedia applications
- Write well designed, testable code
- Conducting software analysis, programming, testing, and debugging
- Manage Java and Java EE application development
- Develop documentation to help users
- Transforming requirements into stipulations
- Prepare and produce releases of software components
- Support continuous improvement, investigating alternatives and technologies, and presenting for architectural review
- Expertise in software design and development.
- Proficiency with at least one Object Oriented language(e. g. Java)
- Experience with building high-performance, highly available and scalable distributed systems
- Experience with API Design, ability to architect and implement an intuitive customer and third-party integration story.
Must Have Skills :
- Hand on experience on .NET core
- Experience in C#
- Looking for experience into No Sql.
Other Skill set required :
- 3+ years of building sophisticated, world-class, highly reliable multi-tenant software systems that have stood the test of time.
- From being highly proficient to being an expert in at least one OOPS language, SOLID principles, and design patterns, C#, Dotnet core, WebAPI, NoSQL.
- Experience with microservices architecture OR distributed systems.
- Strong analytical and problem-solving skills.
- Ability to work independently.
Job requirements
- A strong engineer with excellent Ruby experience working with Ruby on Rails
- Experience with Node.js
- Experience with SQL/nosql databases(Postgresql, cassandra, MongoDB)
- Experience with REST services and API design
- Experience with building the system for scale
- Experience with version control systems (bitbucket, git etc.)
- Experience working with AWS
- Experience with docker/microservices will be an added advantage
- Knowledge of unit & integration testing
- Knowledge of agile development process, jira
- Strong knowledge of algorithms and Data structures
- Basic understanding of the HTTP protocol
- Demonstrated experience working on application development projects and test-driven development. Experience in writing high quality code
- Knowledge of blockchain technology, smart contracts and cryptocurrency will be an added advantage
- Experience in fintech domain will be another added advantage
- Bachelor’s degree in computer programming, computer science, or a related field.
- Fluency or understanding of specific languages, such as Java, PHP, or Python, and operating systems may be required.
- 3+ years of experience with Ruby On Rails.
- Strong Project & Time Management Skills, along with the ability to apply these skills while working independently, or as part of a team.
What will you do?
- You will be responsible for the design and development of large-scale, multi-tenant, distributed systems using scalable, fault-tolerant architecture with distributed queues (kafka), distributed caches (redis), high volume data stores (MongoDB, Cassandra, elasticsearch), container-centric deployments (kubernetes).
- Write Java codes using best practices with high quality standards.
- Participate in code reviews and deep dive into design discussions.

Looking for a proficient Backend Engineer - JAVA for a leading E-Commerce Company.
- Proficient in Java, with a good knowledge of its ecosystems
- Great OO skills, including strong knowledge in design and architectural patterns
- Skill for writing reusable Java libraries
- Experience with Play Framework for Java
- Experience with JavaScript & frameworks like AngularJS
- Knowledge of concurrency patterns in Java
- Familiarity with concepts of MVC, JDBC, and RESTful
- Basic understanding of JVM, its limitations, weaknesses, and workarounds
- Implementing automated testing platforms and unit tests
- Working knowledge of NoSQL (preferably MongoDB)
- Proficient understanding of versioning tools, such as Git
- Desire to contribute to the wider technical community through collaboration
- Ability to quickly grasp any new technologies
- Strong communication and collaboration skills







