Javascript

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.

Job Summary:

We are looking for a highly skilled senior .NET Full Stack Developer with 7+ years of experience to join our dynamic team. The ideal candidate should have strong expertise in .NET 8, Microservices Architecture, SQL, and various design patterns. Prior experience in the banking or financial services domain is highly preferred. The role requires excellent communication skills, client interaction abilities, and a strong understanding of agile methodologies. You will be responsible for designing, developing, and maintaining scalable applications while collaborating closely with clients and cross-functional teams.

Key Responsibilities:

1. Design, develop, and maintain robust, scalable, and high-performance applications using .NET 8 and related technologies.
2. Develop and implement Microservices Architecture to build modular and scalable solutions.
3. Work on both frontend and backend development, ensuring seamless integration.
4. Apply design patterns such as SOLID principles, Repository Pattern, CQRS, and DDD for optimized application development.
5. Develop and optimize complex SQL queries, stored procedures, and database structures to ensure efficient data management.
6. Collaborate with business stakeholders and clients to gather requirements and provide technical solutions.
7. Ensure security, performance, and scalability of applications, particularly in banking and financial environments.
8. Actively participate in Agile/Scrum development cycles, including sprint planning, daily stand-ups, and retrospectives.
9. Communicate effectively with clients and internal teams, demonstrating strong problem-solving skills.
10. Troubleshoot and debug technical issues, ensuring high availability and smooth performance of applications.
11. Mentor and guide junior developers, conducting code reviews and knowledge-sharing sessions.
12. Stay updated with the latest technologies, frameworks, and best practices in .NET development and Microservices.

Required Skills & Experience:

1. .NET 8 (C#, ASP.NET Core, Web API) – Strong hands-on experience in enterprise-level application development.
2. Microservices Architecture – Experience designing and implementing scalable, loosely coupled services.
3. Frontend Technologies – Knowledge of Angular, React, or Blazor for UI development.
4. Design Patterns & Best Practices – Strong understanding of SOLID principles, Repository Pattern, CQRS, Factory Pattern, etc.
5. SQL & Database Management – Expertise in MS SQL Server, query optimization, and stored procedures.
6. Agile Methodologies – Solid understanding of Scrum, Kanban, and Agile best practices.
7. Banking/Financial Domain (Preferred) – Experience in core banking systems, payment gateways, or financial applications.
8. Client Interaction & Communication Skills – Excellent verbal and written communication, with the ability to engage with clients effectively.
9. Logical & Analytical Thinking – Strong problem-solving skills with the ability to design efficient solutions.
10. Cloud & DevOps (Preferred) – Exposure to Azure MANDATORY /AWS, Docker, Kubernetes, and CI/CD pipelines.
11. Version Control & Collaboration – Proficiency in Git, Azure DevOps, and Agile tools (JIRA, Confluence, etc.).

Preferred Qualifications:

1. Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
2. Certifications in Microsoft .NET, Azure, or Agile methodologies are a plus.

Responsibilities: 

• Develop and maintain high-quality, efficient, and scalable backend applications. 
• Participate in all phases of the software development lifecycle (SDLC) 
• Write clean, well-documented, and testable code adhering to best practices. 
• Collaborate with team members to ensure the successful delivery of projects. 
• Debug and troubleshoot complex technical problems. 
• Identify and implement performance optimizations. 
• Participate in code reviews 
• Hands-on experience with Springboot, Java 8 and above. 
• 5-7 years of experience developing Java applications. 
• Knowledge about at least one messaging system like Kafka, RabbitMQ etc. 
• Required React developer requirements, qualifications & skills: 
• Proficiency in React.js and its core principles 
• Strong JavaScript, HTML5, and CSS3 skills 
• Experience with popular React.js workflows (such as Redux) 
• Strong understanding of object-oriented programming (OOP) principles. 
• Experience with design patterns and best practices for Java development. 
• Proficient in unit testing frameworks (e.g., JUnit). 
• Experience with build automation tools (e.g., Maven, Gradle). 
• Experience with version control systems (e.g., Git). 
• Experience with one of these databases – Postgres, MongoDb, Cassandra 
• Knowledge on Retail or OMS is a plus. 
• Experienced in containerized deployments using Docker, Kubernetes and DevOps mindset 
• Ability to reverse engineer existing/legacy and document findings on confluence. 
• Create automated tests for unit, integration, regression, performance, and functional testing, to meet established expectations and acceptance criteria.

1. Need Senior DC Billing Architect\Lead having 4-12 years of experience in PnC Domain & DC Billing.
2. He must have worked on multiple DC Implementation projects and should have sound knowledge of Duck Creek Billing with good hands on experience.
3. Must have good communication skills and should be able to drive\participate in technical discussions with Client technical team.

• Have a willing attitude ready to take on new challenges.
• Lead the entire web application development life cycle right from the concept stage to delivery and post-launch support.
• Ensure HTML, CSS, and shared JavaScript is valid and consistent across applications.
• Strong time management, listening, and communication skills.
• Experience with and a strong understanding of mobile web development.
• Convey effectively all task progress, evaluations, suggestions, and schedules along with technical and process issues.
• Creating database schemas that represent and support business processes.
• Utilize backend data services and contribute to increasing existing data services API.

• Previous working experience as a PHP / Laravel / Shopware 6 developer.
• In-depth knowledge of object-oriented PHP.
• Basic Linux experience (command-line tools).
• MySQL profiling and query optimization.
• Creative and efficient problem solver.
• Technical Skills:- HTML, CSS, JavaScript, JQuery, Core PHP, MySql, Laravel, Symfony, Shopware 6.
• Ubuntu system knowledge is required.

JOB DESCRIPTION:

 Roles and Responsibility :

• Lead and build the team in development
• Participate in the technical design of projects we made for our Clients
• Supervise and write efficient and reliable code; use best practices with our team
• Organize and participate code reviews
• Setup unit and integration tests
• Architecture and design of reusable server components
• Developing high performing REST APIs for application functionality
• Develop and maintain scalable server architecture serving millions of users every day.
•  

Must Have Skill Sets :

• Should have 5+ years of experience in Mobile/web server and application development
• Mandatory: Strong development skills in Python ,Node.js, Typescript, Django Rest Framework, Linux, MongoDB
• Experience with client technologies like JavaScript, CSS3, HTML5, bootstrap, Angulars, React, Android App a plus
• Strong knowledge of data structures and computer fundamentals
• An ability to refract and understand large and separate code bases
• Experience with third-party libraries and APIs
• Forward-looking on potential technology choices
• Experience in building highly scalable, reliable systems
• Team handling experience.
  
  
  

Responsibilities

Design Develop and maintain web functionalities

Work with Tech Lead to propose a technical solution

Liaise with designer to implement the UI/UX elements for web and mobile interfaces

Troubleshoot production problems and provide user support.

Design and conduct tests:

• Integrate multiple systems from different vendors with seamless data flow
• Investigate new technologies and continue to update your technical skills
• Write well-structured and testable code following the set guidelines

Requirements

Degree in IT or equivalent

More than 3 years of web-based application development experience in PHP.

Strong knowledge of PHP web frameworks: CodeIgniter, Laravel, Bootstrap, AngularJs, Angular Material, Symphony, Zend, Cake and Flask.

Languages

PHP, JavaScript, HTML, CSS, Python.

Databases: MySql

Operating Systems: Ubuntu, Windows and Macintosh.

Others: jQuery, AJAX, JSON, Celery, Git, API, AWS, Facebook API, Twitter API, Google API,PayPal Integration, nginx, Apache,AmCharts, Mpdf and PhantomJs.

Mandatory:

Strong knowledge in Continuous Integration/Continuous Delivery tools, e.g. Jenkins

Strong knowledge in planning for testing strategy, test suites and test cases.

Proficient understanding of code versioning tools (e.g. Git)

Understands web trends, including social media integration and the impact of the growth of mobile/tablet browsing

More than 3 years of web service (REST, SOAP) and API development and management

Strong Knowledge of security standards and techniques for web applications

Strong technical knowledge in software development methodologies, design patterns and implementation

Proven ability to carry a feature from start to finish, including prototypes, design specifications, constructive coding, unit testing and problem resolution

Preferred

Strong in SQL & PL/SQL and have good working knowledge on the relational database(s) (MySQL)

Experience With Selenium Web, Appium, Endtest.io Automated Regression Tools

Advantage

Experience with other server-side stacks (Node.js, Python, Java etc.) a plus

Experience developing native or hybrid mobile applications for IOS and/or Android a plus

Experience in the development and production of standards-based websites using HTML/5, CSS/3, JavaScript, jQuery, AJAX, JSON across multiple browsers a plus