
Responsibilities:
● Design, develop, test, and maintain software applications using Java technologies.
● Implement robust solutions using Spring MVC, Spring Boot, and Hibernate frameworks.
● Develop and optimize database operations with MySQL.
● Analyze and solve complex problems by applying knowledge of data structures and algorithms
Requirement -
Programming Languages & Technologies: Strong knowledge of Java (Core Java, Java 8+).
● Frameworks: Proficiency in Spring MVC, Spring Boot, and Hibernate. ● Algorithms and Data Structures: Good understanding and practical application of DSA concepts.
● Databases: Experience with MySQL – writing queries, stored procedures, and performance tuning.
● Version Control Systems: Experience with tools like Gi

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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Java Tech Lead (5–6 Years Experience)
About the Role
We are seeking a highly skilled Java Tech Lead with 5–6 years of hands-on experience in backend engineering, architecture design, and leading development teams.
The ideal candidate will combine strong technical expertise in Java frameworks with a deep understanding of system design, scalability, and performance optimization.
This role involves technical leadership, code reviews, and architectural decision-making for complex enterprise systems — with occasional exposure to analytics-driven and Python-based components.
Key Responsibilities
- Architect, design, and develop scalable backend systems using Java (Quarkus, Spring Boot, Spring, Java EE).
- Own the architecture — ensure modular, extensible, and high-performance service design.
- Lead and mentor a team of developers; conduct code reviews, enforce best practices, and ensure high code quality.
- Collaborate with cross-functional teams (frontend, DevOps, product, data) to deliver integrated, end-to-end solutions.
- Design and optimize database schemas (MySQL, PostgreSQL) and ensure efficient query performance.
- Implement and maintain microservices and distributed systems with strong fault tolerance and observability.
- Drive the adoption of modern development workflows — Git branching strategy, CI/CD, and code quality automation.
- Analyze system performance bottlenecks, implement monitoring, and ensure smooth production deployments.
- Contribute to architecture reviews, technical documentation, and design discussions.
- Occasionally contribute to Python-based analytics modules or automation scripts.
- Work with AWS cloud services (EC2, S3, RDS, Lambda) for deployment, scaling, and infrastructure automation.
Required Skills & Qualifications
- 5–6 years of professional experience in backend application development using Java.
- Strong proficiency in Java frameworks: Quarkus, Spring Boot, Spring, Java EE.
- Proven experience in architecture design, system decomposition, and microservices design principles.
- Solid understanding of object-oriented design (OOD), design patterns, and SOLID principles.
- Strong experience with relational databases (MySQL, PostgreSQL) and query optimization.
- Good understanding of event-driven systems, RESTful APIs, and asynchronous processing.
- Proficiency in Git for version control and team collaboration.
- Strong analytical and debugging skills; ability to diagnose complex production issues.
Good to Have
- Hands-on experience with Python for data processing or analytics integrations.
- Familiarity with AWS cloud architecture and cost optimization practices.
- Experience with CI/CD pipelines (GitHub Actions, Jenkins, GitLab CI).
- Knowledge of Docker/Kubernetes for containerized deployments.
- Exposure to NoSQL databases (MongoDB, DynamoDB, Cassandra).
- Experience with message queues (Kafka, RabbitMQ, or AWS SQS).
- Understanding of system scalability, caching (Redis/Memcached), and observability stacks (Prometheus, Grafana, ELK).
Soft Skills
- Strong leadership, mentoring, and communication skills.
- Proven ability to drive technical decisions and balance short-term delivery with long-term architectural health.
- Collaborative mindset — works closely with product, design, and operations teams.
- Passion for clean architecture, high performance, and continuous improvement.
- Self-driven with a strong sense of ownership and accountability.
Requirements
- 3+ years of experience in the Development of JAVA technology.
- Strong Java Basics
- Linux
- SpringBoot or Spring MVC
- Hands-on experience in Relational Databases (SQL query or Hibernate) + Mongo (JSON parsing)
- Proficient in REST API development
- Messaging Queue (RabitMQ or Kafka)
- Microservices
- Java 8
- Any Caching Mechanism
- Good at problem-solving
Good to Have Skills:
- 3+ 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 AI/ML algorithms is a plus.
Experience -2 yrs to 7yrs .
Must have good hands-on experience in spring-boot, hibernate, microservices
Salary- Good hike on current CTC
Location - Zirakpur (Mohali )
Notice Period - up to 1 months
interested candidates share your CVs.
We are looking for a Java and Oracle SQL developer with experience in building high-performing, scalable, enterprisegrade applications. You will be part of a PwC utility team and will work on critical applications. Candidate roles and
responsibilities include managing Java/Java EE application development and SQL codes, while providing expertise in the
full software development lifecycle, from concept and design to testing.
Candidate responsibilities include designing, developing and delivering high-volume, low-latency applications.
Responsibilities
• Contribute in all phases of the development lifecycle
• Write well designed, testable, efficient code
• Direct dealing with client and understand their requirements
• Ensure designs are in compliance with client requirement and specifications
• Prepare and produce releases of software components
• Prepare report and presentation based on client requirement
Requirements
• B.E./B.Tech.
• Three years of experience after B.E./B.Tech.
• Proven hands-on Software Development experience
• Proven working experience in Java development
• Hands on experience in designing and developing applications using Java EE platforms
• Excellent knowledge of Relational Databases, Oracle SQL, PL/SQL and query development including server
maintenance
• Experience in developing reports by extracting data from database
• Experience in MS Excel, Word and Power Point
• Experience with test-driven development
• Experience in Power Utility (Discom) domain and Power BI will be preferred
We are looking for a highly capable Node.js developer to optimize our web-based application performance. You will be collaborating with our front-end application developers, designing back-end components, and integrating data storage and protection solutions.
To ensure success as a Node.js developer, you should possess extensive knowledge of Node.Js based services and experience in a similar role. An accomplished Node.js developer will be someone whose expertise results in the stable, fast, and secure exchange of data between servers and end-users.
Node.js Developer Responsibilities:
Developing and maintaining all server-side network components.
Ensuring optimal performance of the central database and responsiveness to front-end requests.
Collaborating with front-end developers on the integration of elements.
Designing customer-facing UI and back-end services for various business processes.
Developing high-performance applications by writing testable, reusable, and efficient code.
Implementing effective security protocols, data protection measures, and storage solutions.
Running diagnostic tests, repairing defects, and providing technical support.
Documenting Node.js processes, including database schemas, as well as preparing reports.
Recommending and implementing improvements to processes and technologies.
Keeping informed of advancements in the field of Node.js development.
Node.js Developer Requirements:
Bachelor's degree in computer science, information science, or similar.
At least two years' experience as a Node.js developer.
Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
Knowledge of front-end technologies such as HTML5 and CSS3.
Superb interpersonal, communication, and collaboration skills.
Exceptional analytical and problem-solving aptitude.
Great organizational and time management skills.
Availability to resolve urgent web application issues outside of business hours
We are looking for experienced Odoo Developers with good development skills in Python. Candidates should have hands-on experience in end to end implementation of the custom modules in Odoo.
RESPONSIBILITIES:
- Develop and deploy ERP/ web applications using OpenERP/ Odoo.
- Customize/ develop various modules such as Accounting, POS Sales & CRM, inventory, Purchasing, , Invoice, Website, Google map, Warehouse, MRP, HR, etc.
- Customize various modules and integrate services/ products ranging from payment gateways to hardware devices with Odoo.
- Understand Functional requirements from clients. Provide GAP analysis and transform them into technical requirements.
- Functional knowledge of ERP modules like Accounting, Stock, CRM, Inventory, HR, Sales, Purchasing, Manufacturing, E- Commerce, and Payment gateway.
- Experience in Migrations, Odoo end user training.
- Knowledge of OOP concepts, SQL, HTML and JavaScript.
- Experience in hosting on AWS or other cloud service providers
- Ability to understand client requirements and translate them into business solutions.
- Develop and deploy ERP modules from scratch
- Adopt new and emerging technologies to provide solutions to client needs. Cater to time difference need
- Identify technical issues and provide solutions
- Testing support.
- Develop and customize reports based on client s specifications in the modules like Accounting, Inventory, Manufacturing and HR. Work on Odoo's internal BI reporting tool for live reports
- Skills
- Strong familiarity with the Odoo framework is mandatory.
- Should have a solid knowledge of Python and programming concepts. Contribution for Open Source Projects will be advantageous.
- Good problem solving and analytical skills
Education:
- Bachelor's (Preferred)
- 2 - 6 years of software development experience
- Good grasp on programming fundamentals including OOP, Design Patterns and Data Structures
- Excellent analytical, logical and problem-solving skills
- Software Development Engineer
- Good understanding of complexities involved in designing/developing large scale systems
- Strong system design skills
- Experience in technologies like Elasticsearch, Redis, Kafka etc
- Good knowledge of relational and NoSQL databases
- Familiarity with common machine learning algorithms. In-depth knowledge is a plus
- Experience of working with big data technologies like Hadoop, Spark, Hive is a big plus
- Ability to understand business requirements and take ownership of the work
- Exhibit passion and enthusiasm for building and maintaining large scale platforms
Job Title: Senior Java Developer
Department: Technology and Research
Reports to: Technical Lead
Context
Sampana Digital (SDPL) (http://www.sampanadigital.com">www.sampanadigital.com) is a digital technology company that provides end-to-end product engineering and digital transformation services. Our engineering services includes web & mobile application development, user experience design, cloud, testing and infrastructure managed services to transform businesses digitally. We also enable enterprises with contextual and personalized two-way multi-channel mobile communications, including SMS, voice, email and PWA technology.
We believe in small teams of smart, committed, and diverse individuals coming together and form a breakthrough insight. We are a team of passionate professionals to craft an unbeatable culture and services.
Come and join us!
Role Description
We are looking for a Senior Java 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, and your roles and responsibilities include managing Java/Java EE application development while providing expertise in the full software development lifecycle, from concept and design to testing.
Job Responsibilities:
- Work with and direct the team’s software engineers in setting the standards for coding, testing and software quality
- Collaborate closely with the team’s BAs on the efficient transition of BDD’s and Swaggers to the engineers as part of the overall workflow.
- Oversee and manage the scope, timeline, and goals forth delivery of working software
- Oversee and assist in the production of comprehensive documentation
- Oversee and provide support to production cutovers and migrations as required
- Lead the analysis and resolution of technical and application problems
- Supporting the Scrum Master
- Participate in and support backlog grooming, sprint planning, daily stand-ups, reviews, retrospectives, release planning, demos and other Scrum related meetings
- Provide clear reporting on the status of the scope, timeline and progress for the delivery of working software
- Assist in setting up a robust out of hours support process
- Assist in the prioritisation of bugs and defects
- Providing Guidance and Mentoring
- Participate in peer reviews of solution designs and related code
- Provide technical leadership to the teams’ software engineers through coaching and mentorship
- Identify and encourage areas for growth, education and development within the team
General
- Self-Starting Leader capable or working under pressure
- Curious and engaged in Continuous Learning and Professional Development
- Strong DevOps experience
- Java and Spring Developer with +5 years’ experience with the following skills
- Java 1.8+
- Spring
- Microservices with Spring-boot
- Spring cloud config
- Unit tests with Spring-boot
- Docker
- Openshift/Kubernetes
- Basic understanding of API gateways
- OpenAPI (Swagger) specification.
Understanding of basic networking concepts
- Integration into backends via various protocols (SOAP,REST, XML-RPC etc)
- CI/CD (Jenkins, pipelines etc)
The following additional skills would be advantageous:
- Spring reactive
- APIGEE
- Azure DevOps
- Pivotal Kubernetes
- Linux
- Azure Pipelines
scalable technical stack, SQL, and big data technologies (preferably with strong data visualization and
analytics products).
Demonstrate knowledge of cloud architecture and implementation features (OS, multi-tenancy,
virtualization, orchestration, elastic scalability).
Experience in architecting, developing Micro services architecture with hand-onn experience.
Experience with Spring, Hibernate, Java, J2EE, Rabbit MQ, REST, Tomcat technologies.
Experience with Javascript UI technologies such as JQuery, Backbone, Bootstrap, AngularJS.
Job Description
Experience, seasoned professional and self-starter and need ability to translate customer/business
challenges and problems into tangible solutions.
Proactively bringing issues and problems to the attention of the team; generating, proposing and
implementing innovative solutions to solve them.
Proactively takes on challenges with a fresh perspective and open mind, with goal to provide continuous
improvement of platform and processes.
Demonstrates creativity, innovation and out-of-the-box thinking in crafting solutions addressing business
requirements, with near and long-term lenses.
Master-level experience and in-depth knowledge of Java platform with any one or more of: JBoss,
WebLogic, Websphere application servers.
Experience and knowledge of developing enterprise applications with i18n, l10n, and accessibility
support.
Preferred AWS certified architect and hands on AWS related technologies
Proven track record of troubleshooting and fixing performance, scalability, and reliability issues (memory
issues, multi-threading, CPU spikes, virtualization, etc.) in Linux/Unix or Windows environment.
Experience with troubleshooting and fixing database performance issues, and SQL tuning.
Experience and knowledge of secure coding best practices (such as OWASP).
Knowledge on BI tools and ETL.
Strong verbal and written communication skills.
Flexibility and ability to work in a fast-paced, rapidly growing environment.
Ability to work with globally distributed and multi-cultural teams.
Develop good development practices to ensure high quality deliverable.
Coach and develop development team members to ensure continuous improvement.
Monitor and assist developers in following established software development processes, policies, best
practices and expectations around coding and testing standards.
Take a hands-on approach in day-to-day development activities of team members including planning of
regular progress update meetings, design and code reviews and project reporting for team members.
Education
Bachelor degree in informatics, life-sciences or equivalent work experience is required.
Indicate below any additional preferred requirements if applicable (optional):
Masters of Science (MS) degree in relevant area of study is preferred.
Experience in testing business intelligence/analytics applications or software for multi-tenant enterprise
SaaS applications is a big plus
Experience with UI/UX testing, and testing products for accessibility
Having certification in CSM or ISTQB or equivalent.
Experience in testing business intelligence/analytics applications or software for multi-tenant enterprise
SaaS applications is a big plus
Scripting experience with bash or python or shell scripting. Must feel comfortable writing automation
scripts
- Should have experience in supporting the application and infrastructure 24x7.
- Should have good working knowledge on troubleshooting skills of Operating Systems (Linux/Windows)
- Good experience on Java/j2EE application supporting and AWS infra supporting.
- Ability to work with 3rd parties/FOPS and provide required instruction to troubleshoot and restore faults.
- Respond quickly and effectively to production issues, troubleshooting solutions, and taking responsibility for seeing those solutions through resolution.
- Identify root cause and corrective actions for highly complex availability, capacity, security, performance, and quality issues affecting the database.
- Strong knowledge of Linux/Unix operating system.
- Good knowledge in scripting languages like Shell, Python.
- Good Knowledge on Databases like Mongo, Mysql, SQL Server.
- Respond to alerts and take corrective action to ensure the high-availability of our production environments and participate in an after-hours on-call rotation.
- Experience/Knowledge of other cloud platforms (Azure, Google Cloud) is a plus
- Strong verbal and written communications skills are a must
- Must have production support experience as the requirement is 24X7X365 production support.








