Sales Intern

We are seeking a detail-oriented and analytical Data Analyst to collect, process, and analyze data to help drive informed business decisions. The ideal candidate will have strong technical skills, business acumen, and the ability to communicate insights effectively.

Job Summary 

We are looking for a skilled Java + Cloud Developer to design, develop, and maintain high-performance applications. The ideal candidate will have strong expertise in Core Java, Spring Framework, multithreading, and database management, along with exposure to cloud platforms and containerization technologies. 

Job Title: Java + Cloud Developer 

Location: Pune / Mumbai / Bangalore  

Experience Level: 4-8 

Employment Type: Full-time 

Key Responsibilities 

• Design, develop, and maintain scalable Java applications using Core Java, Spring Framework, JDBC, and multithreading concepts. 
• Implement and integrate database solutions using relational and NoSQL databases. 
• Utilize JDBC for database connectivity and manipulation. 
• Work with cloud platforms such as Azure or GCP; experience with DevOps practices is an added advantage. 
• Develop, deploy, and manage applications using containerization technologies (Docker, Kubernetes). 
• Debug and troubleshoot applications through log analysis and monitoring tools. 
• Collaborate with cross-functional teams to ensure seamless integration between multi-service components. 
• Handle large-scale data processing tasks effectively; hands-on experience with Apache Spark is a plus. 
• Apply Agile methodologies (Scrum/Kanban) in daily development activities. 
• Continuously research and adopt new technologies to improve development processes and methodologies. 

Required Skills & Qualifications 

• Strong proficiency in Core Java (Java 8 or higher) with a deep understanding of threading and concurrent programming. 
• Solid experience with the Spring Framework and its various modules (Spring Boot, Spring MVC, Spring Data, etc.). 
• Experience with RDBMS (e.g., MySQL, PostgreSQL, Oracle) and NoSQL databases (e.g., MongoDB, Cassandra). 
• Basic understanding of cloud platforms (Azure, GCP, or AWS). 
• Knowledge of DevOps practices (CI/CD, version control, monitoring tools) is a plus. 
• Familiarity with Docker and Kubernetes for application deployment and scaling. 
• Strong analytical and problem-solving skills. 
• Good communication skills and ability to work in a collaborative environment. 

Preferred Qualifications 

• Hands-on experience with Apache Spark for big data processing. 
• Exposure to microservices architecture and API integrations. 
• Familiarity with log monitoring tools (ELK, Splunk, etc.). 

Note : Serving Notice OR 30 Days NP

Who You Are:

• You’ve built scalable, production-ready APIs in fast-paced environments, and are comfortable with the challenges that come with a growing startup.
• You understand event-driven architectures and have hands-on experience building real-time applications.
• You are fully capable of taking ownership of backend systems, from designing the database schema to writing efficient, maintainable code.
• You think beyond the code: optimizing performance, scalability, and security are as important as building new features.
• You’re comfortable troubleshooting complex issues, whether that’s API bottlenecks, database performance, or production issues.

Responsibilities:

• Design, implement, and manage a NestJS backend with a modular, scalable architecture that can easily handle real-time events and communication.
• Develop and maintain WebSocket services for real-time event-driven updates and ensure seamless communication across the system.
• Integrate RabbitMQ for reliable internal messaging, handling queues and ensuring event-driven workflows are efficient and fault-tolerant.
• Implement database management strategies using MongoDB, Redis, and Elasticsearch, ensuring efficient data handling, indexing, and optimization.
• Integrate with external APIs (JSON-RPC, XML-RPC, REST) to enhance system capabilities.
• Ensure high performance of the system by optimizing database queries, implementing caching strategies using Redis, and ensuring optimal indexing and data flow.
• Implement role-based authentication and authorization mechanisms using JWT, OAuth, and RBAC patterns within NestJS.
• Follow security best practices to ensure sensitive data is protected, credentials are stored securely, and the system is resilient to common vulnerabilities.
• Work collaboratively with cross-functional teams to ensure seamless integration between different services and technologies.

Must-Have Skills:

• Strong proficiency in Node.js and NestJS with TypeScript.
• Solid experience with MongoDB, Redis, and Elasticsearch for data storage and real-time data handling.
• In-depth knowledge of WebSockets and Socket.IO in NestJS Gateways, enabling real-time communication and updates.
• Experience with RabbitMQ for message queuing and asynchronous task handling.
• Strong understanding of authentication & authorization systems using JWT, OAuth, and RBAC (Role-Based Access Control).
• Expertise in optimizing APIs, including techniques for caching, improving database performance, and reducing latency.
• Familiar with API security best practices, including secure storage of credentials, encryption, and safeguarding sensitive data.

Key Skills:

• TypeScript, NestJS, WebSockets, Socket.io
• Redis, MongoDB, Elasticsearch, RabbitMQ
• API Optimization, JWT, OAuth, RBAC
• Real-time communication, Event-driven architecture

Candidate Profile

• Minimum 2+ years of experience.
• Should have worked with Product based company for a minimum 2+ yrs 
• Strong background in Microsoft Technologies and SDLC concepts. Should have experience in below technologies:
• Microsoft .Net (ASP.NET & ASP .NET CORE)
• C#, JavaScript, CSS, JQuery /, Typescript
• Knowledge on Node Js
• MVC and WebAPI
• MS SQL Server management Studio (SSMS) to develop database objects such as Stored Procedures, Functions, views, triggers, constraints etc. and look for performance tuning and Exception handling for these components
• Good to have: Understanding of MS Excel VBA /MS-access/ macro codes

Job Responsibilities: -

• Work on building enterprise grade applications with a strong knowledge of the .net core framework. Experience with Node JS.
• Create Libraries that would be shared across the different modules in the system that can be leveraged by multiple teams within the organization.
• Good understanding of data structures to identify the correct data structure for a specific use case.
• Build RESTful API for customer consumption. Prior knowledge building APIs is a requirement. Understanding of HTTP error codes is a must.
• Work on code in a distributed code development environment. Prior use of Git/Github is desirable.
• Work with a Unit Test platform.
• Strong knowledge on Encryption standards – Asymmetric and Symmetric.
• Create and Manage System Documentations.

Job Qualifications

• At least 4+ years of experience using C# programming language in the build of enterprise software (.net core, asp.net core, web api) – For .Net Developer
• At least 7+ years of experience using C# programming language in the build of enterprise software (.net core, asp.net core, web api). – For Lead.
• Experience handling ISO8583 message standard; Payments Industry knowledge.
• Good understanding of version control (using Git/Github).
• Experience with Unit Test framework; TDD Approach.
• Knowledge and understanding of PCI Requirements for Card processing software .
• Understanding of SQL Database and Database Design.
• Strong understating of hybrid cloud application basics based on Docker, Kubernetes, Microservices and Postgres.
• Minimal 2+ years of experience in building enterprise scale applications: coding, designing, developing, and analyzing data. 
• Agile environment. AWS, Docker, Kubernetes, DevOps environment Lead levels only.
• Manage CI/CD Pipeline.
• E/B.Tech/B.Sc/MCA/Msc in Computer Science.

Company Overview

http://www.corecard.com">www.corecard.com & http://www.corecardindia.com">www.corecardindia.com

Core Card Software is a product company, to provide financial service organizations with the best card management applications to help them compete both locally and globally. Core Card Software, a leading provider of card management systems. The Core Card software solution provides the market's most feature-rich platform for processing and managing accounts receivables and a full range of card products including prepaid/stored-value, fleet, credit, debit, commercial, government, healthcare and private-label cards. Core Card have offices based in Atlanta, Bhopal & Navi Mumbai.

Please find the JD Below:

Job title- ATL/Technical Lead

Experience

1. Must have experience
   1. Extensive product development experience
   2. 5-10 years experience in back end Java Development
   3. Possess advanced knowledge of object-oriented design and development (OOA/OOD). 
   4. Team task assignment, mentoring and helping resolve issues 
   5. Self-starter, ability to work with minimal supervision.
   6. Skilled at working collaboratively in a team-oriented environment. 
   7. Excellent problem-solving skills. Curious and adept at researching project-related issues and challenges.
   8. Excellent debugging skills

1. Good to have
   1. Experience in SOA and microservice deployment model.
   2. GWT development experience
   3. Experience of working in an Agile development model
   4. Mixed experience in different type of organizations - product start up and large enterprises

Other Skills

1. Strong Analytical skills
2. Acumen for understanding customer's business goals
3. Process oriented- Following current processes and partner in process improvement.
4. Data oriented- Using data and knowledge base for solving current problem at hand and creating software knowledge base for future use.
5. Ability to juggle multiple development and design tasks simultaneously.

1. Experience of design and/or development experience with .NET, C#, ASP.NET MVC, APIs, AngularJs and/or Angular, Windows Forms and SQL Server in an n-tier architecture.
2. Strong background in object-oriented development techniques
3. Solution Design Patterns and Best Practices, eg. SOA
4. Database design and development (Microsoft SQL Server)
5. Experience with APIs, Web Services, WCF and Service Oriented Architecture a plus
6. Experience with concurrent development source control (Git) and continuous integration.
7. Understanding of Software Development Life Cycle and Agile methodologies.