.Net web Developer

Role Overview

We are looking for a Senior Full Stack Developer to build and scale our fintech platform. You will own the entire lifecycle of our financial products, from designing high-performance relational schemas in PostgreSQL to building interactive dashboards in React.

Key Responsibilities

• Full Stack Development: Build and maintain end-to-end features using the PERN stack

(PostgreSQL, Express.js, React, Node.js).

• Database Optimization: Design complex relational models and optimize SQL queries to

handle high-volume financial data and audit trails.

• Security & Compliance: Implement rigorous security measures (e.g., JWT, OAuth, data

encryption) and ensure the platform adheres to fintech standards like PCI-DSS.

• API Architecture: Develop robust RESTful APIs to integrate with third-party banking APIs,

payment processors (Stripe/Plaid), and KYC providers.

Technical Requirements

• Front-end: Advanced proficiency in React.js (Hooks, Context API, Redux or TanStack Query)

and modern CSS (Tailwind/Styled Components).

• Back-end: Expert-level Node.js and Express.js experience, with a focus on asynchronous

programming and secure API design.

• Database: Deep knowledge of PostgreSQL (complex joins, indexing, triggers, and

migrations).

Additional skills

• Understanding of Event-Driven Architecture (using AWS SQS/SNS or Kafka).

• Familiarity with SOC2 or ISO 27001 compliance frameworks.

• Cloud (AWS): Proven experience with:

• RDS/Aurora for managed databases.
• IAM for secure access management.
• AWS Lambda & API Gateway for serverless architecture.
• CloudWatch for monitoring and alerting.

• Tools: Git, Docker, and experience with CI/CD workflows.

About US

RJ Fintech Solutions Pvt. Ltd. is a high-growth fintech startup on a mission to automate business financial operations. In a world where financial systems are often slow and opaque, we are building the "missing link"—a secure, transparent, and lightning-fast platform that puts banking and compliance first for various corporates.

We are not just another financial app; we are an engineering-first company. We believe that elegant code and robust architecture are the foundations of trust. By leveraging the PERN stack and AWS cloud-native infrastructure, we are replacing legacy complexity with modern, scalable solutions.

Why Work With Us?

1. Build the Foundation, Not Just Features

You won't be a small cog in a massive machine. As an early member of our engineering team, you will help define our technical architecture, choose our libraries, and set the coding standards for everyone who follows. Your fingerprints will be on the core DNA of our product.

2. Solve Problems That Matter

Fintech is one of the few industries where code has a direct, measurable impact on people's lives.

Whether we are [e.g., simplifying cross-border payments, democratizing investment, or building the next generation of credit], you will be solving high-stakes challenges around security, trust, and financial inclusion.

Location: Bengaluru

Work Mode: On-site – 5 days a week

Experience: 6–9 years

Job Description:

ROLE OBJECTIVE

• Collaborate with design teams to architect AI-enhanced solutions aligned with business requirements utilizing Azure cloud infrastructure

• Integrate Large Language Models (Claude 4.6, Azure OpenAI Service) into production-grade .NET applications with MS SQL Server backends

Responsibilities specific to the band level are:

• Architect, design, build, and maintain scalable applications using .NET 6/7/8, ASP.NET Core Web API, and Entity Framework Core with MS SQL Server

• Develop innovative solutions integrating Azure OpenAI Service, Claude 4.6 API (Opus/Sonnet), and AI/ML capabilities into enterprise applications

• Implement Claude API and Azure OpenAI Service for intelligent features including RAG systems, NLP processing, and context-aware responses

• Produce production-ready, well-tested code and mentor junior developers on AI integration patterns, React best practices, and .NET development standards

• Actively participate in SCRUM ceremonies, maintain sprint commitments, and adhere to Agile development methodologies

• Collaborate with stakeholders, product owners, and cross-functional teams to deliver AI-driven solutions aligned with business objectives

• Enforce coding standards, implement clean architecture principles, and utilize AI-powered code review tools for quality assurance

• Develop responsive, performant applications with Bootstrap, modern CSS frameworks, and seamless Azure-hosted API integration

• Design and optimize MS SQL Server databases, implement stored procedures, functions, indexes, and query optimization strategies

Other responsibilities include:

• Adhere to established architectural patterns and develop AI-enhanced web applications following enterprise standards

• Execute comprehensive database design, normalization, stored procedure development, and T-SQL optimization in MS SQL Server environments

• Develop API-first applications employing schema-first design methodology using .NET 6/7/8, OpenAPI specifications, and Swagger documentation

• Maintain comprehensive technical documentation, API specifications, and codebase documentation utilizing AI-assisted documentation tools

EDUCATION / KNOWLEDGE

• BE / BTech with 6 to 9 years of relevant work experience

• Comprehensive knowledge of .NET 6/7/8 frameworks, C# 10-12 language features, ASP.NET Core, and Entity Framework Core

• Expertise in MS SQL Server database design, T-SQL programming, query optimization, and indexing strategies

CRITICAL EXPERIENCE

• Demonstrated experience developing production-grade AI-enhanced web applications using .NET 6/7/8 and React

• Proven track record with .NET Core 3.x / .NET 5/6/7/8 for building scalable enterprise applications and RESTful APIs

• Hands-on experience deploying and managing applications on Microsoft Azure cloud platform with Azure OpenAI Service integration

• Proficiency in MS SQL Server database development including schema design, stored procedures, triggers, and performance tuning

• Practical experience integrating Claude 4.6 API (Anthropic) or Azure OpenAI Service into .NET applications with production deployment

• API development expertise using schema-first approach, OpenAPI/Swagger specifications, and API versioning strategies

• Working knowledge of Azure DevOps or GitHub for source control and automated deployment workflows

COMPETENCIES

Working knowledge of: Front End

• Bootstrap 5 • jQuery, AJAX • Responsive design principles • CSS3, SASS/LESS • Azure DevOps (Repos, Pipelines, Boards) • GitHub / Git workflows

Backend

• C#, .NET 6/7/8 • ASP.NET Core Web API • Entity Framework Core 6-8 • API schema-first approach (OpenAPI/Swagger) • Design patterns (MVC, Repository) • Authentication/Authorization (OAuth 2.0, JWT, Azure AD) • SOLID principles, Clean Architecture

Database

• MS SQL Server 2016-2022 • T-SQL programming • Database design & normalization • Stored procedures, functions, triggers • Indexing strategies • Query optimization & execution plans • Performance tuning

Additional Skills

• xUnit, NUnit unit testing frameworks • Agile/SCRUM methodologies • Microservices architecture patterns • RESTful API design principles • Postman, Swagger for API testing • Application performance monitoring

Job Description – Full Stack Developer (React + Node.js)

Experience: 5–8 Years

Location: Pune

Work Mode: WFO

Employment Type: Full-time

About the Role

We are looking for an experienced Full Stack Developer with strong hands-on expertise in React and Node.js to join our engineering team. The ideal candidate should have solid experience building scalable applications, working with production systems, and collaborating in high-performance tech environments.

Key Responsibilities

• Design, develop, and maintain scalable full-stack applications using React and Node.js.
• Collaborate with cross-functional teams to define, design, and deliver new features.
• Write clean, maintainable, and efficient code following OOP/FP and SOLID principles.
• Work with relational databases such as PostgreSQL or MySQL.
• Deploy and manage applications in cloud environments (preferably GCP or AWS).
• Optimize application performance, troubleshoot issues, and ensure high availability in production systems.
• Utilize containerization tools like Docker for efficient development and deployment workflows.
• Integrate third-party services and APIs, including AI APIs and tools.
• Contribute to improving development processes, documentation, and best practices.

Required Skills

• Strong experience with React.js (frontend).
• Solid hands-on experience with Node.js (backend).
• Good understanding of relational databases: PostgreSQL / MySQL.
• Experience working in production environments and debugging live systems.
• Strong understanding of OOP or Functional Programming, and clean coding standards.
• Knowledge of Docker or other containerization tools.
• Experience with cloud platforms (GCP or AWS).
• Excellent written and verbal communication skills.

Good to Have

• Experience with Golang or Elixir.
• Familiarity with Kubernetes, RabbitMQ, Redis, etc.
• Contributions to open-source projects.
• Previous experience working with AI APIs or machine learning tools.

Job Title : Senior MERN Stack Developer with Blockchain Expertise

Location : Indore, MP

Experience : 2-5 years

Job Type : Full-time, On-site

We're seeking a seasoned Senior MERN Stack Developer with a strong focus on blockchain technology to join our innovative team in Indore. As a Senior MERN Stack Developer, you'll play a pivotal role in crafting and implementing cutting-edge blockchain solutions using the MERN stack. Your expertise will contribute to the development of secure, scalable, and decentralized applications. If you're passionate about blockchain technology, possess extensive MERN stack experience, and thrive in a collaborative environment, we encourage you to apply and be a key player in our transformative projects.

Requirements :

- Proven experience as a Full Stack Developer with a specialization in blockchain technology.

- Proficiency in the MERN stack (MongoDB, Express.js, React, Node.js).

- Experience with major blockchain platforms such as Ethereum, Hyperledger, or similar.

- Solid understanding of smart contract development and implementation.

- Knowledge of decentralized application (dApp) development.

- Familiarity with cryptography and principles of blockchain security.

- Strong problem-solving and analytical skills.

- Excellent collaboration and communication skills.

Skills :

- MongoDB, Express, Node.js, React.js

- Next.js (knowledge preferred but not mandatory)

- WordPress/Shopify experience (preferred)

- Real-time communication using Socket.IO or WebRTC (preferred)

- GraphQL API development

- Experience with integrating payment gateways

If you're ready to take on exciting challenges and contribute to groundbreaking projects, apply now and join us in shaping the future of blockchain technology.

JD-

• Experience in C# ASP.NET + MVC + Entity Framework development

• Experience in JavaScript and jQuery

• Experience in Web Services and third party API Integrations

• Experience in SQL Server databases

Responsibilities

• Design, code, test, and manage various applications

• Collaborate with the engineering team and product team

• Follow outlined standards of quality related to code and systems

• Deploy tested code to the production environment

§ Experience of developing web based enterprise wide applications in .NET4.5 (C#, ASP.NET), WCF, WPF, AJAX etc

§ Understanding of enterprise application development and deployment.

§ Good understanding OOPS and Design Patterns and experience of tools like Enterprise Architect.

§ Good knowledge of RDBMS design, programming and DBA concepts and experience of working in SQL Server and Oracle databases.

§ Good Design, Coding and Testing skills.

§ Knowledge and exposure to Service Oriented Architecture, Enterprise Service Bus and application Integration (using middleware).

§ Experience of working in electricity utility domain – preferably in EA/AMR/AMI/EMS/IT System Integration/ERP (for Utilities) projects

§ Mobility based software development, GPRS, GSM Knowledge of BI tools implementation.

§ Experience in mobility based applications will be an added advantage.

We are looking for a motivated PHP / Laravel developer to come join our team.

Responsibilities and Duties:

• Develop, record and maintain cutting edge web-based PHP applications on portal plus premium service platforms
• Build innovative, state-of-the-art applications and collaborate with the User Experience (UX) team
• Ensure HTML, CSS, and shared JavaScript is valid and consistent across applications
• Prepare and maintain all applications utilizing standard development tools
• Utilize backend data services and contribute to increasing existing data services API
• Lead the entire web application development life cycle right from concept stage to delivery and post-launch support
• Convey effectively with all task progress, evaluations, suggestions, schedules along with technical and process issues
• Document the development process, architecture, and standard components
• Coordinate with co-developers and keeps project manager well informed of the status of development effort and serves as a liaison between development staff and project manager
• Keep abreast of new trends and best practices in web development

Required Skills

• At least 1 of experience in PHP / Laravel developer
• BS/MS degree in Computer Science, Engineering
• In-depth knowledge of object-oriented PHP and Laravel 5, 7 PHP Framework
• Hands-on experience with SQL schema design, SOLID principles, REST API design
• Software testing (PHPUnit, PHPSpec, Behat)
• MySQL profiling and query optimization
• Creative and efficient problem solver

1. About the Job

Upside Digital is looking for a brilliant mind to help build its portfolio FinTech Startup, https://www.instaval.co/">InstaVal. The role of the FS Developer is ideal for smart coders who have the technical expertise and passion to turn our vision into a living product.

1. You will 

• Work with product lines to implement functional & non-functional business requirements into working software, including APIs, web services, etc.
• Enhance existing web solutions to ensure scalability across customer's new business requirements. 

1. You have

• Good Communication Skills. 
• Good personal work ethics and a well-rounded team player. 
• Ability to own and start projects with the team and manage to deliver in timely manner. 

1. You’re skilled at

• Microsoft .NET Framework (C#).
• Web development (http://asp.net/">ASP.NET, web services, WCF, JavaScript, NodeJS, AngularJS, HTML5, CSS).
• MongoDB or Microsoft SQL, MySQL, NoSQL.
• Staying on top of technology trend and contribute to technical design throughout project.

• Experience or familiar with a SaaS business.
• Past startup experience.

• InstaVal is a tech-enabled Business Valuation and Deal Discovery Platform made to promote equity investments in early stage business.
• Our vision is (i) to empower founders and (ii) enable ecosystem stakeholders to efficiently deliver their set of investment advisory & support services.
• An opportunity for you to be part of a global disruptive startup in the corporate finance space.
• We encourage creative thinking, independent responsibilities for business results & team collaboration.
• We have lives outside of work.

• Airtime: Full-time basis - five days a We’re not civil service officials neither.
• Compensation structure: Salary, Bonus, Equity.
• Location: Dubai,
• Unlimited paid time off as long as you get **** done.
• Start Period: November 2019