.NET Full Stack Developer (FinTech / Payments)Capital Numbers • vellore, tamil nadu, in

No longer accepting applications

.NET Full Stack Developer (FinTech / Payments)

Capital Numbers • vellore, tamil nadu, in

1 day ago

Job description

We are seeking a highly skilled Senior Full Stack Developer to design, build, and scale secure financial and payment applications. 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 lifecycle—from architecture and development to deployment, testing, and post-implementation support.

Key Responsibilities :

Architecture & System Design

Design scalable and modular software using Clean Architecture and SOLID principles .
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.NET MVC, Web APIs

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 2.0 .

Ability to debug and optimize large-scale distributed systems.

Create a job alert for this search

Net Developer • vellore, tamil nadu, in

Related jobs

Senior.Net Developer (Azure)

Luxoft • vellore, tamil nadu, in

In Luxoft, our culture strives to solve challenging problems, focusing on product engineering based on hypothesis testing to empower people to come up with ideas. We do it with a truly flexible envi...Show more

Last updated: 2 days ago • Promoted

Dotnet Developer

REDANGLO® • vellore, tamil nadu, in

REDANGLO (OPC) PRIVATE LIMITED as a.REDANGLO (OPC) PRIVATE LIMITED.Months (Extendable / Potential Full-Time Offer).REDANGLO is a 100% remote digital agency, founded by experts in Artificial Intelli...Show more

Last updated: 20 hours ago • Promoted • New!

Full Stack Developer (Remote-India)

hotsourced • vellore, tamil nadu, in

Remote

We are a UK-based technology company operating a multi-tenant car wash service booking and management platform.Angular, MySQL, React Native, and cloud services, our platform serves multiple busines...Show more

Last updated: 12 hours ago • Promoted • New!

Full Stack Engineer

Beast Insights • vellore, tamil nadu, in

We’re building the Payment Command Center for high-risk merchants — a platform that helps businesses recover failed payments, prevent chargebacks, and boost approval rates using data and intelligen...Show more

Last updated: 1 day ago • Promoted

Full Stack Developer

noon • vellore, tamil nadu, in

We’re building an ecosystem of digital products and services that power everyday life across the Middle East—fast, scalable, and deeply customer-centric. Our mission is to deliver to every door ever...Show more

Last updated: 4 hours ago • Promoted • New!

Full Stack Developer (Next.js, React– SaaS Projects)

Bytesec • vellore, tamil nadu, in

Backend Developer (3–4 Years Experience).We’re looking for a sharp, hands-on Full Stack Developer who’s solid with React / Next. If you love ownership, clean code, and building scalable apps, you’ll f...Show more

Last updated: 4 hours ago • Promoted • New!

Full Stack AI engineer

AnswerThis (YC F25) • Vellore, IN

Remote (Applications open worldwide).Semantic Search, Vector Databases, Prompt Engineering, GenAI Frameworks, React Agents, Graph Agents, Document Parsing, Python, Scalable APIs.AnswerThis is an AI...Show more

Last updated: 30+ days ago • Promoted

Full-Stack Lead Developer High End Wellness Hospitality(Equity Only - Remote) Worldwide

Pranissa • Vellore, IN

Remote

Pranissa is a top-tier wellness and longevity platform connecting individuals with exceptional Wellness and longevity destinations, evidence-based wellness resorts, and age-defying experiences worl...Show more

Last updated: 30+ days ago • Promoted

Back End Developer

PackIntelX • Vellore, IN

PackIntelX offers an all-in-one digital platform that empowers companies to prepare for EU Packaging regulations (PPWR), Recyclability, Recycled Content integration, and Packaging conformity.We bui...Show more

Last updated: 30+ days ago • Promoted

Senior.NET + GCP Full Stack Developer

People Prime Worldwide • vellore, tamil nadu, in

Our client is a trusted global innovator of IT and business services.We help clients transform through consulting, industry solutions, business process services, digital & IT modernisation and mana...Show more

Last updated: 4 hours ago • Promoted • New!

Dotnet Developer

Mastech Digital • vellore, tamil nadu, in

Full Time Contract( 2-3+ Months).This is contract role for 3+ months.Have to work 8-9 hours / day in regular shift.Please apply only if you are interested. We are seeking a highly skilled.NET Develope...Show more

Last updated: 30+ days ago • Promoted

Senior.Net Web Developer and SQL Expert

Atigro • Vellore, IN

Net developer with a passion for cutting edge? Join Atigro and play a key role in shaping the future of AI-powered enterprise solutions! We’re a fast-growing AI team working on innovative, challeng...Show more

Last updated: 21 days ago • Promoted

Staff Software Engineer(C#,.Net)

Ivanti • vellore, tamil nadu, in

In today’s work environment, employees use a myriad of devices to access IT applications and data over multiple networks to stay productive, wherever and however they work.Ivanti elevates and secur...Show more

Last updated: 6 days ago • Promoted

Dotnet fullstack

Concentrix • Vellore, IN

Net Core, ReactJS, Microservices.Web API, C#, Entity Framework, Hooks, Redux.An understanding of software patterns and practices, affinity for developing unit tests with complete code coverage.Mode...Show more

Last updated: 30+ days ago • Promoted

.NET Developer with Azure Integration Role (Night Shift) - Remote / Immediate Joiners

Sonata Software • vellore, tamil nadu, in

Remote

Currently we have an urgent Opening for.NET Developer with Azure Integration Role with one of our Projects, location based out of Remote. Kindly find below the details for your Perusal.Shift timings...Show more

Last updated: 6 days ago • Promoted

Full Stack Lead

IDfy • vellore, tamil nadu, in

IDfy is Asia’s leading TrustStack, trusted by the best, with global expertise and enterprise-grade tech.We’re solving trust challenges, making compliance easy, fraud detection smarter, and onboardi...Show more

Last updated: 19 days ago • Promoted

Financial Domain : Full Stack Developer with.NET / C# / SQL, Python (Data engineering)

Vertus Enterprises Inc. dba CMIT Solutions, JCMCH • vellore, tamil nadu, in

Vertus Solutions dba CMIT Solutions NYNJ (vertussolution.Its comprehensive technology and security solutions enable clients to grow their business and protect from security threats, accidental dama...Show more

Last updated: 30+ days ago • Promoted

Dotnet Fullstack Developer ( Full-time at a Fortune 500 tech MNC )

HARP • Vellore, Tamil Nadu, India

Key Responsibilities & Attitude Produce UAM technical process documentation and training materials.Provide subject matter expertise and input to management. Maintain strong awareness of IAM tools, t...Show more

Last updated: 3 days ago • Promoted