Senior Full Stack Developer - .Net/React.js
Posted on: 27/11/2025
Job Description
Description :
This role requires strong expertise in .NET technologies, modern frontend frameworks, cloud platforms (AWS), and deep understanding of payment protocols and standards.
You will be part of a cross-functional team and responsible for the full software development lifecyclefrom architecture and development to deployment, testing, and post-implementation support.
Key Responsibilities :
Architecture & System Design :
- Implement CQRS (Command Query Responsibility Segregation) and asynchronous messaging patterns.
- Participate in architectural reviews and ensure adherence to best practices.
Software Development :
- Develop backend services using C#, .NET Framework, .NET Core, MVC, EF, and REST APIs.
- Build responsive and secure front-end applications using Vue.js / React / Angular.
- Integrate payment SDKs, third-party APIs, and secure payment forms.
- Write clean, reusable, and well-documented code following industry coding standards.
Payments & Banking Domain :
- Implement solutions using ISO 8583 / ISO 20022 protocols.
- Work with card issuance, payment gateways (Stripe, PayPal), and tokenization systems.
- Implement multi-currency transaction workflows (authorization, capture, refund).
- Apply encryption (AES/RSA), OAuth2, and JWT-based authentication.
- Mitigate security threats such as SQL injection, CSRF, and XSS.
Database & Data Handling :
- Design and optimize relational database schemas (MS SQL Server, MySQL, PostgreSQL).
- Implement stored procedures, indexing, partitioning, and high-performance transactions.
- Manage NoSQL systems like DynamoDB for session and cache scenarios.
- Ensure encryption at rest and in transit using AWS KMS / Secrets Manager.
Testing & Code Quality :
- Develop unit, integration, and end-to-end tests.
- Conduct code reviews and troubleshoot complex issues.
- Ensure full QA alignment before deployment.
DevOps & Cloud :
- Build CI/CD pipelines using Azure DevOps.
- Use Docker & Kubernetes for containerization and orchestration.
- Deploy and monitor applications using AWS services (Lambda, API Gateway, CloudWatch, X-
Ray).
- Use Infrastructure-as-Code tools like CloudFormation or Terraform.
Collaboration & Process Improvement :
- Work closely with cross-functional teams including product, design, QA, infrastructure, and operations.
- Identify process improvements and contribute to best practices.
- Support deployments and participate in production issue resolution.
Required Skills & Qualifications :
- 8+ years of full stack development experience.
- 3+ years experience in banking, card issuance, or payment systems (mandatory).
Strong expertise in :
- .NET Core, C#, ASP.
- Frontend frameworks (Vue.js/React/Angular).
- SQL databases (MS SQL Server).
- Payment APIs, tokenization, encryption.
- ISO 8583/20022 protocols.
- OAuth2, JWT, and security standards.
- AWS cloud services & containerization.
- CQRS, Clean Architecture, SOLID principles.
Preferred Skills :
- Experience with Keycloak.
- Knowledge of AWS SageMaker for fraud detection models.
- Migration experience from .NET Framework ? .NET Core/8+.
- Understanding of PCI DSS, PSD2, 3D Secure 2.
- Ability to debug and optimize large-scale distributed systems.
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Posted By
Mrinmoyee Roy Chowdhury
Talent Acquisition Lead at CAPITALNUMBERS INFOTECH LIMITED
Last Active: 28 Nov 2025
9
Posted in
Full Stack
Functional Area
Full-Stack Development
Job Code
1581477
