Sr. Fullstack 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.

Due to the high volume of applicants, we are only able to interview candidates who have actively contributed to Keyshade by attempting at least one of our GitHub (https://git.new/keyshade) issues. It’s okay if your PR doesn’t get merged—we are looking for genuine effort. Please include your GitHub username in the question section of this job post.

We’re looking for a talented Full Stack Intern who thrives in a collaborative, fast-paced environment (but without the hustle culture). You’ll work on both frontend and backend tasks, learn from our experienced team, and make meaningful contributions to an open-source project. If you’re eager to grow and have prior experience contributing to open-source, we’d love to hear from you!

Who We're Looking For

You’re a great fit if you:

• Have a solid foundation in TypeScript (mandatory).
• Are excited to learn more and work in an open-source development environment.
• Can translate designs and business logic into clean, efficient code.
• Love solving complex problems and debugging tricky issues.
• Have prior experience contributing to open-source projects (preferred).
• Are proactive, curious, and willing to collaborate across teams.
• 
  

Responsibilities

As a full-stack intern, you will:

Frontend Tasks:

• Translate Figma designs into pixel-perfect React/Next.js code using TailwindCSS.
• Ensure apps are responsive and visually polished.
• Write and maintain tests to ensure features are stable and bug-free.
• Optimize UI performance and address any frontend issues raised by the open-source community.

Backend Tasks:

• Build and maintain scalable Nest.js applications.
• Implement robust backend solutions using Node.js and TypeScript.
• Write tests to ensure backend stability before deployment.
• Troubleshoot backend issues and optimize app performance.
• Collaborate with design and development teams to ensure seamless integration between frontend and backend systems.

Qualifications

Must-Haves:

• Strong proficiency in TypeScript, React, and Next.js.
• Familiarity with Nest.js, Git, and GitHub workflows.
• Experience with CSS frameworks like TailwindCSS.
• A working laptop/desktop capable of handling development tasks.

Good-to-Haves:

• Experience with state management tools .
• Understanding of monorepo tools like Turborepo and pnpm workspaces.
• Familiarity with Shadcn/UI and atomic design principles.
• Prior open-source contribution experience (highly preferred).

Benefits

• 100% remote work with no rigid time limits—your productivity defines your work hours.
• Flexible schedule—we’re night owls, but your schedule is yours.
• Performance bonuses for exceptional contributions.
• Open-source exposure and networking opportunities with contributors worldwide.
• A cool Swag Kit to make you feel like you're part of Keyshade forever.
• A chance to shape an innovative product in the secrets management domain.

About Us

Keyshade is a self-funded, remote, open-sourced startup, based out of India. We are a small team working entirely remotely, and also being sustained a lot by the open-source ecosystem.

Our product deals in the domain of data and information security. We provide developer teams of all sized with the solution to the age-old problem of managing configurations for their applications. Keyshade aims at providing developers with an intuitive platform that enables them to outsource secret and configuration management, while they can put their entire focus in developing their application. We have developed our product with a security-first mindset, while also keeping into consideration the ease of use of the product.

Bot checking

If you have went through the whole JD and if you are not a bot then give us a star on Github: https://git.new/keyshade

Job Responsibilities:

1. WordPress Theme and Plugin Development:

• Develop and customize WordPress themes and plugins according to project requirements.
• Ensure the compatibility and responsiveness of websites across various devices.

1. Website Design and Layout:

• Collaborate with designers to implement visually appealing and user-friendly website designs.
• Optimize website layout for maximum usability and user experience.

1. Content Management:

• Set up and manage content within WordPress, ensuring it is well-structured and easily maintainable.
• Provide training and support to clients on content management best practices.

1. Website Maintenance and Updates:

• Perform regular updates and maintenance tasks on existing WordPress websites.
• Troubleshoot and resolve issues related to website functionality and performance.

1. Collaboration with Cross-Functional Teams:

• Work closely with designers, UI/UX specialists, and other developers to deliver cohesive solutions.
• Participate in project meetings and contribute to the planning and execution of web development projects.

1. Customization and Integration:

• Implement custom functionalities and integrations based on client requirements.
• Ensure seamless integration with third-party APIs and services.

Qualifications:

• Proven experience as a WordPress Developer or similar role.
• Proficiency in PHP, HTML, CSS, JavaScript, and other relevant web development technologies.
• Strong understanding of WordPress architecture, best practices, and coding standards.
• Experience with responsive design principles and cross-browser compatibility.
• Familiarity with SEO principles and best practices.
• Ability to work collaboratively in a team environment.
• Excellent problem-solving and debugging skills.
• Strong communication skills with the ability to explain technical concepts to non-technical stakeholders.

Additional Skills (Preferred but not mandatory):

• Experience with e-commerce platforms, especially WooCommerce.
• Knowledge of web security best practices.
• Familiarity with version control systems, such as Git.
• Understanding of performance optimization techniques.

• 1-5 years of experience in a full stack software development role.
• Experience in technologies - PHP, Bootstrap, Vuejs and MySQL.
• Knowledge of Cloud services (GCP/AWS), MongoDB and Nodejs is a plus.
• Experience of working in an Agile environment
• Ability to design for scale and performance
• Ability to do peer code reviews
• Solid problem-solving skills

PHP Developer | App Ringer 

We are looking for a skilled and experienced PHP Laravel Developer to join our team.

Developer to join our back-end development team. In this role, you will be responsible for developing and implementing backend components using PHP concepts and Laravel. You will also be responsible for profiling and improving backend performance and documenting our backend codebase.

 Responsibilities:

• Meeting with the development team to discuss backend applications. 
• Developing and implementing highly responsive user interface components using react concepts.
• Writing backend code using PHP workflows.
• Wordpress knowledge is a plus.
• Developing and implementing backend architecture to build scalable systems and applications.
• Monitoring and improving back-end performance.
• Documenting backend changes and developing updates.

Requirements:

• You have at-least 3 years of experience crafting robust, high-scale, distributed systems in         production environments. 
• You are passionate about leading initiatives and collaborating across Data Science, Design, Engineering and Product teams. 
• You are a strong coder with an eye for using the right algorithms and data structures for the problem at hand. 
• Ability to troubleshoot issues in a large distributed infrastructure. 
• You are proficient with RESTful API design and implementation using PHP. 
• Proficiency in relational (MySQL, Cloud Spanner etc.) and non-relational (Google Cloud Firestore etc.) databases.
• Excellent troubleshooting skills.
• Good project management skills.

Introduction:

We are seeking a Full Stack Software Developer to join our innovative team, focusing on a project in the Food & Beverage (F&B) sector and contributing to an established Financial Services product. The ideal candidate will have extensive experience in both backend and frontend development, particularly with Python and ReactJS, and a proven ability to deliver mobile-responsive web applications.

Key Responsibilities:

• Develop and maintain web applications using Django or similar MVC frameworks.
• Design and implement mobile-responsive web pages using frontend technologies such as ReactJS.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Ensure the performance, quality, and responsiveness of applications.

Required Skills and Qualifications:

• Minimum of 3 years of experience in full stack development.
• Proficient in Python and experience with Django or other MVC frameworks.
• Strong experience in building mobile-responsive web pages using frontend technologies such as ReactJS.
• Familiarity with RESTful APIs and server-side integrations.
• Understanding of the entire web development process (design, development, and deployment).
• Excellent problem-solving skills and ability to work under tight deadlines.

What We Offer:

• Competitive salary and benefits package.
• Opportunities for professional growth and development.
• A collaborative and innovative work environment.

PHP, HTML, CSS, JAVASCRIPT, AJAX, REST API, JQUERY, POSTGRESQL, MYSQL, MVC FRAMEWORK.

Responsibilities:

• Design and build advanced applications
• Work with outside data sources and APIs
• Unit-test code for robustness, including edge cases, usability, and general reliability
• Work on bug fixing and improving application performance
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency
• Building reusable code and libraries for future use
• Optimization of the application for maximum speed and scalability
• Implementation of security and data protection
• Able to understand and create Documentation according to Client requirement.

Requirements:

• Ability to write clean, commented and maintainable code.
• Proven track record in designing, architecting, developing enterprise class products and solutions.
• Good understanding of MVC frameworks.
• Good understanding of front-end technologies and platforms, such as JavaScript, HTML5, and CSS3.
• Desired experience in PHP.
• Understanding accessibility and security compliance.
• User authentication and authorization between multiple systems, servers, and environments.
• Integration of multiple data sources and databases into one system.
• Management of hosting environment, including database administration and scaling an application to support load changes.
• Data migration, transformation, and scripting.
• Understanding differences between multiple delivery platforms such as mobile vs desktop, and optimizing output to match the specific platform.
• Implementing automated testing platforms and unit tests.
• Proficient knowledge of a back-end programming language.
• Proficient understanding of code versioning tools, such as Git.
• Proficient understanding of OWASP security principles.
• Proper understanding of OOPS concepts.
• Creating database schemas that represent and support business processes.
• Understanding of startup culture.
• Good team player, Quick learner.