Full Stack Tech Lead

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 Title : Full Stack Developer

Experience : 5+ Years (Mandatory)

Mandatory Tech Stack : Node.js (NestJS), React.js (Next.js), React Native, PostgreSQL, AWS (Hybrid with On-Premise infrastructure) & Docker Swarm & Portainer

Location : Remote

Working Days : Monday to Saturday

Shift : Night Shift

Job Summary :

We are scaling rapidly and looking for a high-impact Full Stack Developer who thrives on solving complex problems across Web, Mobile, and Cloud Infrastructure.

The ideal candidate is hands-on, adaptable, and comfortable working in distributed systems and hybrid cloud environments, delivering end-to-end solutions with ownership and accountability.

Mandatory Technical Skills :

• Backend : Node.js with NestJS
• Frontend (Web) : React.js with Next.js
• Mobile : React Native
• Database : PostgreSQL
• Cloud : AWS (Hybrid with On-Premise infrastructure)
• OS : Linux
• Containers & Orchestration : Docker Swarm
• Container Management : Portainer

🎯 Key Responsibilities :

• Design, develop, and maintain scalable full-stack applications (Web + Mobile)
• Build and manage microservices and RESTful APIs
• Work in distributed and hybrid cloud environments
• Develop cloud-ready solutions and manage deployments
• Handle containerized applications using Docker Swarm & Portainer
• Collaborate closely with Product, DevOps, and Engineering teams
• Ensure application performance, security, and reliability
• Participate in code reviews and follow best engineering practices
• Troubleshoot, debug, and optimize applications across the stack

✅ Required Qualifications :

• Strong hands-on experience with Node.js (NestJS)
• Solid expertise in React.js (Next.js) and React Native
• Experience with PostgreSQL and backend data modeling
• Working knowledge of AWS services in hybrid environments
• Good understanding of Linux systems
• Hands-on experience with Docker Swarm & Portainer
• Strong understanding of microservices architecture
• Ability to manage end-to-end full-stack delivery

⭐ Good-to-Have Skills :

• Experience with CI/CD pipelines
• Exposure to monitoring & logging tools
• Knowledge of event-driven systems
• Experience working in high-availability systems

Job Description:

Responsible for designing, developing, and maintaining full-fledged software platforms that can function independently without relying on third-party applications. Work on both the front-end and back-end development processes, using a range of technologies and languages such as Java, Springboot, microservices, cloud with Angular or react.

Essential functions:

• Strategic Architectural Design Lead the design and development of complex, enterprise-level software systems.
• Evaluate emerging technologies and recommend optimal architectural patterns.
• Ensure software solutions align with business requirements and long-term goals.
• Technical Leadership Mentor and guide junior developers on best practices and coding standards.
• Collaborate with cross-functional teams to coordinate development efforts.
• Make data-driven decisions to optimize system performance and scalability.
• FullStack Development Hands-on coding and implementation of front-end, back-end, and database components.
• Develop robust APIs, microservices, and cloud-native applications.
• Implement security measures and ensure compliance with industry standards.
• Continuous Improvement Identify opportunities to refactor and modernize existing systems.
• Automate deployment pipelines and streamline DevOps processes.
• Conduct code reviews and provide constructive feedback to the team.
• Knowledge Sharing Document technical specifications, design patterns, and implementation details.
• Conduct training sessions and workshops to upskill the development team.
• Stay-up-dated on the latest Java ecosystem and share industry insights.

Qualifications/ Experience & Skills:

• Computer engineering/ Computer Science OR equivalent degree.
• 10-15 Years of total experience.
• As an experienced Full Stack Architect, individuals would be responsible for driving the technical vision, leading the development team, and ensuring the delivery of high-quality, scalable software solutions that meet business objectives.
• Notice period: immediate - 30 days would be preferred.

Would be a plus :

• Experience in Enterprise architecture

Role Summary

We’re seeking a highly skilled and self-motivated Senior Software Engineer who thrives in a startup environment. You will lead end-to-end development of key features, own architectural decisions, and ensure the smooth delivery of our product.

Mandatory Skill Sets/Expertise

• 5-6 years of experience in full-stack development, with a strong focus on the MERN / PERN stack (MongoDB, PostgreSQL, Express, React, Node.js) and AWS.

• Expertise in AWS cloud architecture and experience with serverless solutions (Lambda, DynamoDB, API Gateway).

• Proficiency in designing and implementing CI/CD pipelines using Git, Jenkins, Github actions, or similar tools.

• Proven experience leading and guiding a development team, with strong mentoring skills.

• Ability to work independently and manage deliverables without oversight, while thriving in a startup mentality.

• Strong problem-solving abilities with a proactive approach to addressing technical challenges.

• Experience with databases like PostgreSQL, MongoDB, or other NoSQL solutions along with ORM tools like Sequalize & Mongoose ORM

• Excellent communication skills, both written and verbal, with the ability to explain complex technical concepts to non-technical stakeholders.

Nice to Have

• Knowledge of Typescript for both frontend and backend development. • Experience with Docker and containerized applications.

• Familiarity with GRC (Governance, Risk, and Compliance) tools or SaaS products.

• Experience with other AWS services like ECS, CloudFormation, or RDS.

Key Responsibilities

• Lead and mentor a team of developers, driving best practices in coding and architecture.

• Take full ownership of modules, from design through deployment, and launch web apps singlehandedly if needed.

• Design, develop, and maintain web applications using the PERN / MERN stack (MongoDB, PostgreSQL, Express, React, Node.js) with a focus on scalability, security, and performance.

• Prepare high-level technical designs and architectural decisions, especially on AWS serverless architecture and microservices.

• Implement secure, reliable, and scalable solutions using AWS services • Design and manage CI/CD pipelines to ensure continuous integration and automated deployments.

• Optimize application performance through techniques like lazy loading, code splitting, and caching.

• Collaborate with cross-functional teams, including Product Management, to define features and user experience improvements.

• Ensure high code quality by adhering to SOLID principles, implementing comprehensive testing, and embedding observability into the application.

• Monitor and respond to application performance incidents, focusing on improving uptime and resilience.

• Proactively offer suggestions during retrospectives and work on enhancing team productivity metrics such as Lead Time, Deployment Frequency, and Mean-Time-to-Recovery

• Microsoft technology development experience in C#, ASP.NET, .NET 4.5 onwards, Web API, Bootstrap, Jquery, Angular SQL 2012 onwards, SQL stored procedure
• Must have ReactJs with 2 projects experience or min 1.5 Years experience in ReactJS based Projects
• Troubleshooting & analysing skills
• Development Experience required for Continuous improvement program
• Good problem solving capabilities in Developed applications

We are looking for Sr. Node Js Developer

Experience - 1-5 years 

Location - Ahmedabad, Gujarat. (Work from Office/Home)

5 Days working 

Should have good communication skills.

Requirements:

•API Development

• Mongodb or Firebase

•Designing and developing user interfaces using Angular OR JavaScript MV-VM/MVC frameworks

•Good understanding of AJAX and JavaScript, TypeScript Dom manipulation Techniques

•Experience with RESTful services

•Expert in any one of the modern JavaScript MV-VM/MVC frameworks (AngularJS, JQuery, ReactJS)

•Knowledge of Node.js, Express and frameworks available for it

•Understanding the nature of asynchronous programming and its quirks and workarounds

•User authentication and authorization between multiple systems, servers, and environments


Note:- We are not providing permanent work from home. They have to come to the office if needed.

You will be responsible for architecting and developing features on the application end to end. You will be working closely with the Product Managers and the Technical architect to come up with high-quality, resilient, and highly performant applications.‍

• Design and develop SaaS-based applications based on microservices architecture.
• Work on the core backend and ensure it meets the performance benchmarks.
• Work on the front end with ReactJS.
• Design and develop APIs for the frontend to consume.
• Constantly improve the application architecture by clearing the technical backlog.
• Meet both technical and consumer needs.
• Stay abreast of developments in web applications and programming languages.

An enthusiastic individual with the following skills. Please do not hesitate to apply if you do not match all of it. We are open to promising candidates who are passionate about their work and are team players.

• Education - BE/MCA or equivalent.
• Overall 4+ years of experience.
• Agnostic/Polyglot with multiple tech stacks.
• Worked on open source technologies – NodeJS, ReactJS, MySQL, NoSQL, MongoDB, DynamoDB.
• Good experience with Front-end technologies like JavaScript frameworks, ReactJS, AngularJS.
• Backend exposure – good knowledge of building API.
• Worked on serverless technologies.
• Efficient in building microservices to combine server and frontend.
• Knowledge of cloud architecture.
• Should have working experience with relational and columnar DB.
• Should be innovative and communicative in your approach.
• Were responsible for the functional/technical track of a project.

You will closely work with the Engineering team and support the Product Team of Empuls.

A wholesome opportunity in a fast-paced environment that will enable you to juggle between concepts, yet maintain the quality of content, interact and share your ideas and have loads of learning while at work. Work with a team of highly talented young professionals and enjoy the comprehensive benefits that  offers.

A fast-growing SaaS commerce company based in Bangalore with offices in Delhi, Mumbai, SF, Dubai, Singapore, and Dublin. We have three products in our portfolio: Plum, Empuls and Compass. works with over 1000 global clients. We help our clients in engaging and motivating their employees, sales teams, channel partners and consumers for better business results.

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