Senior Java Developer

ompany Name – Wissen Technology

Group of companies in India – Wissen Technology & Wissen Infotech

Job Title: Java Developer

Experience range:- 3-6 Years

Location:- Chennai

Face 2 Face Drive : Friday & Saturday (11th & 12th July 2025)

·    Strong written/verbal communication skills

·      Minimum 3+Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Fork joins pool and other threading concepts)

·    Good knowledge of the JVM with an understanding of performance and memory optimization.

•  Good experience in Spring boot.
•  Extensive and expert programming experience in JAVA programming language (strong OO skills preferred).

•  Excellent knowledge on collections like, Array List, Vector, LinkedList, HashMap, Hash Table, HashSet is mandate.

•  Exercised exemplary development practices including design specification, coding standards, unit testing, and code-reviews.

•  Expert level understanding of Object-Oriented Concepts and Data Structures

•  Good experience in Database (Sybase, Oracle or SQL Server) like indexing (clustered, non-clustered), hashing, segmenting, data types like clob / blob, views (materialized), replication, constraints, functions, triggers, procedures etc.

Founded in 2012,leader in high-assurance digital identity verification technology.  Named to Forbes’ 2019 AI 50 list as one of America’s most promising AI companies, and a recent winner of API World’s Best Data API, technology applies artificial intelligence and machine learning techniques with trusted online/offline data intelligence from email, address, phone, IP, social media and the broader Internet to verify identities in real-time. Customers include three of the top five U.S. banks, seven of the top 10 U.S. card issuers, as well as the majority of leading digital banks, lenders and insurers across the U.S. We are funded by some of the world's best investors and entrepreneurs including Scale Venture Partners, Commerce Ventures, Work-Bench, Santander InnoVentures and Two Sigma Ventures.

The only way we can further our mission of becoming the single, trusted source of identity verification and eliminating identity fraud is by building the best team on the planet. This is where you come in!

We are hiring Software Engineers across all levels in Chennai!

What You'll Be Doing:

• You will partner with our globally distributed cross-functional teams (Product, Infrastructure, Engineering, Data Science) to conceptualize and develop new features and products in an Agile environment. 
• You will own end-to-end delivery of software components all the way to production, owning team features or systems. 
• You will be building web services and REST APIs at scale, and producing high-quality results with direct business impact. 
• You will be monitoring and improving existing deployments, ensuring that we are continuously improving our product. 
• You will be assisting our QA and support team in triaging and resolving production issues and addressing bugs.

What You'll Bring:

• You are interested in our tech stack (Java or Scala, SQL Databases, NoSQL, Microservices, and AWS)
• You will have strong computer science fundamentals: data structures, algorithms, various programming languages, distributed systems, etc. 
• You understand engineering best practices and seek to improve engineering standards, tooling and processes. 
• You write “good code” - easily understandable, secure and testable! 
• You are comfortable helping drive technical decisions within our Engineering team. 
• You have experience building applications at scale.

Perks & Benefits:

• Competitive base salary
• Equity - every employee is a stakeholder in our enormous upside
• A tech-first company culture driven by entrepreneurial thinking and talent
• A great team working in unison towards the same mission
• Transparency is what our product is built on—and so is our culture
• Daily catered lunch and snacks
• Generous health insurance for employees and dependents
• Flexible work schedule and work-from-home options
• Flexible PTO

We are an equal opportunity employer and value diversity of all kinds at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. 

Senior .NET Cloud (Azure) Practitioner

Job Description Experience: 5-12 years (approx.)

Education: B-Tech/MCA

Mandatory Skills

• Strong Restful API, Micro-services development experience using ASP.NET CORE Web APIs (C#);
• Must have exceptionally good software design and programming skills in .Net Core (.NET 3.X, .NET 6) Platform, C#, ASP.net MVC, ASP.net Web API (RESTful), Entity Framework & LINQ
• Good working knowledge on Azure Functions, Docker, and containers
• Expertise in Microsoft Azure Platform - Azure Functions, Application Gateway, API Management, Redis Cache, App Services, Azure Kubernetes, CosmosDB, Azure Search, Azure Service Bus, Function Apps, Azure Storage Accounts, Azure KeyVault, Azure Log Analytics, Azure Active Directory, Application Insights, Azure SQL Database, Azure IoT, Azure Event Hubs, Azure Data Factory, Virtual Networks and networking.
• Strong SQL Server expertise and familiarity with Azure Cosmos DB, Azure (Blob, Table, queue) storage, Azure SQL etc
• Experienced in Test-Driven Development, unit testing libraries, testing frameworks.
• Good knowledge of Object Oriented programming, including Design Patterns
• Cloud Architecture - Technical knowledge and implementation experience using common cloud architecture, enabling components, and deployment platforms.
• Excellent written and oral communication skills, along with the proven ability to work as a team with other disciplines outside of engineering are a must
• Solid analytical, problem-solving and troubleshooting skills

Desirable Skills:

• Certified Azure Solution Architect Expert
• https://ind01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcloudacademy.com%2Flearning-paths%2Faz-900-exam-preparation-microsoft-azure-fundamentals-524%2F&;data=05%7C01%7C%7Ce2e481ab8ccc4c589ba408dad36c9f29%7Ce9cb3c8041564c39a7fe68fe427a3d46%7C1%7C0%7C638054760717910671%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=TmO1fonUFFgb8LzUJHbL8IyOdQeUKdw6xHMM2asosiw%3D&reserved=0" target="_blank">Microsoft Certified: Azure – Fundamentals Exam AZ-900
• https://ind01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcloudacademy.com%2Flearning-paths%2Faz-104-exam-preparation-microsoft-azure-administrator-1-1332%2F&;data=05%7C01%7C%7Ce2e481ab8ccc4c589ba408dad36c9f29%7Ce9cb3c8041564c39a7fe68fe427a3d46%7C1%7C0%7C638054760718066923%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=EQPg%2FXxTdiYUCKCAvItXy6TY89udGTIehQ0m9irkGRk%3D&reserved=0" target="_blank">Microsoft Certified: Azure Administrator – Associate Exam AZ-104
• https://ind01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcloudacademy.com%2Flearning-paths%2Faz-204-exam-preparation-developing-solutions-for-microsoft-azure-1208%2F&;data=05%7C01%7C%7Ce2e481ab8ccc4c589ba408dad36c9f29%7Ce9cb3c8041564c39a7fe68fe427a3d46%7C1%7C0%7C638054760718066923%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=%2BnosXa4TdBUG4jrqP%2B0%2FOikDbQMBNqzuDpvGoUk0IE8%3D&reserved=0" target="_blank">Microsoft Certified: Azure Developer – Associate Exam AZ-204
• https://ind01.safelinks.protection.outlook.com/?url=https%3A%2F%2Facloudguru.com%2Fblog%2Fengineering%2Fwhich-azure-certification-is-right-for-me%23devops-engineer&;data=05%7C01%7C%7Ce2e481ab8ccc4c589ba408dad36c9f29%7Ce9cb3c8041564c39a7fe68fe427a3d46%7C1%7C0%7C638054760718066923%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=NZyP%2F3Euh1SkHfB7896ovm0HDt0vA8UgfHUvTBN4SPM%3D&reserved=0" target="_blank">Microsoft Certified: DevOps Engineer Expert (AZ-400)
• https://ind01.safelinks.protection.outlook.com/?url=https%3A%2F%2Facloudguru.com%2Fblog%2Fengineering%2Fwhich-azure-certification-is-right-for-me%23solutions-architect&;data=05%7C01%7C%7Ce2e481ab8ccc4c589ba408dad36c9f29%7Ce9cb3c8041564c39a7fe68fe427a3d46%7C1%7C0%7C638054760718066923%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=0infaLzjjPThGGkzwu50jJXikppcC8trnsLGtAoB7S4%3D&reserved=0" target="_blank">Microsoft Certified: Azure Solutions Architect Expert (AZ-305)
• Good understanding of software architecture, scalability, resilience, performance;
• Working knowledge of automation tools such as Azure DevOps, Azure Pipeline or Jenkins or similar

Roles & Responsibilities

• Defining best practices & standards for usage of libraries, frameworks and other tools being used;
• Architecture, design, and implementation of software from development, delivery, and releases.
• Breakdown complex requirements into independent architectural components, modules, tasks and strategies and collaborate with peer leadership through the full software development lifecycle to deliver top quality, on time and within budget.
• Demonstrate excellent communications with stakeholders regarding delivery goals, objectives, deliverables, plans and status throughout the software development lifecycle.
• Should be able to work with various stakeholders (Architects/Product Owners/Leadership) as well as team - Lead/ Principal/ Individual Contributor for Web UI/ Front End Development;
• Should be able to work in an agile, dynamic team environment;

• You solve problems at their root, stepping back to understand the broader context.
• You develop pragmatic solutions and build flexible systems that balance engineering complexity and timely delivery, creating business impact.
• You understand a broad range of data structures and algorithms and apply them to deliver high-performing applications.
• You recognize and use design patterns to solve business problems.
• You understand how operating systems work, perform and scale.
• You continually align your work with Amazon’s business objectives and seek to deliver business value.
• You collaborate to ensure that decisions are based on the merit of the proposal, not the proposer.
• You proactively support knowledge-sharing and build good working relationships within the team and with others in Amazon.
• You communicate clearly with your team and with other groups and listen effectively.

• java 8+
• springcore 
• springboot
• MongoDB
• Angular
• Agile

About us:

NetCracker Technology, a subsidiary of NEC Corporation, is the leading provider of BSS/OSS solutions to service providers around the world. From billing, customer care, and real-time charging and policy solutions, to resource and network management, service fulfillment & assurance, our comprehensive software and services capabilities enhance the customer experience through content-rich offerings and reduced costs.

NetCracker's innovative end-to-end BSS/OSS solutions enable service providers to operationalize next-generation connectivity, maximize the convergence of Network and IT, monetize content, and deliver a compelling customer experience.

Founded in 1993, NetCracker became a subsidiary of NEC Corporation in 2008 and acquired the Convergys Information Management division in 2012. We are CMML 5, Product based company. 

Job Responsibilities:

• Work as a member of development team towards the Product Suite
• Estimating efforts and duration on development
• Involved in solution implementation projects
• Interaction with Business Analysts, Quality Assurance and Customer Support teams
• Provide expertise and best practices on technical aspects of product development and implementation projects including performance
• Introduce new development technologies, instruments and techniques

Job Requirements:

• Experience in writing technical design and development of the application
• Good understanding and hands-on work experience in Core Java/J2EE & concepts such as OOPS, multithreading, Collections, Concurrency, Exception Handling, JDBC, File I/O, XML APIs etc
• Should have worked on Java 1.8
• Design skills –Design Patterns, hands on in restful services
• Working experience on spring core
• Hands on in writing complex SQL queries
• Knowledge of web-services (REST and SOAP);
• Familiarity with NOSQL [eg. Mongo DB] is preferred;
• Familiarity with message queues like Kafka.
• Know-how on containerization applications like Docker, Kubernetes is preferred.
• Proficient understanding of code versioning tool – SVN.
• Hands-on experience in writing Unit tests using Junit.
• Working experience in Jenkins, Maven, SonarQube.
• Experience in tuning applications based on Performance tests/ Load tests/ Stress tests is preferred.
• Knowledge of development lifecycle, standards, approaches, utilities and environment: shells, IDEs.
• Familiarity with JIRA / JQL is an added advantage 

Experience:

• 5 to 11 years of core development / Product experience

Education:

• BE/Btech/MCA

Dot Net Developer( US Shifts)

Position – Dot Net Developer
Location – Permanent WFH Opportunity
Experience – 4-8 years
Education – B.E. / B. Tech / MCA / BCA
Salary – Negotiable

Open positions- 2

Looking for Dot Net Developer for developing desktop applications and backend services.

Job Description

• Design implement and support highly scalable applications and web services using Microsoft technologies (ASP.NET, C#, MVC, WCF, SQL Server, Windows Forms, Web API/Rest API)
• Candidate should have some experience towards experience in Angular/React and typescript also.
• Candidates should have the ability to train and work along with development teams to ensure timelines and quality deliveries.
• Lead project estimations, system architecture and performance engineering of

Desired Candidate Profile

• Minimum 4+ years’ experience in designing and developing applications on the .NET platform.
• More than 2+ year of experience with MVC, WCF framework is needed.
• Experience in web application Architecture and Development with hands on expertise in delivering solutions based on/customizing ASP.Net 4.0 / MVC and above.
• Expert-level knowledge of SQL Server programming.
• Strong understanding of OOPS fundamentals, Entity Framework, LINQ and REST APIs.
• Candidate should be ready for US shifts (4pm-1AM)
• Candidates who can join early and working with international clients will be preferred.

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