Full Stack 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.

We’re on the lookout for a passionate Full Stack Developer with 0 to 1 years of experience to join our growing team at The Red Arc. If you love solving problems, building clean code, and collaborating in a dynamic environment then this could be a perfect fit for you.

What we’re looking for:

💼 0 to 1 Years of experience.

🧑‍💻 A degree in BE, BTech, BSc IT, or a related field.

🛠️ Frontend skills: HTML, CSS, JavaScript, Angular, and basic React.js

⚙️ Backend experience with Node.js, REST APIs, and MySQL

🧩 Familiar with Git/GitHub, basic debugging, deployment

✨ Bonus if you’ve worked with React projects on GitHub, or have experience with TypeScript, testing tools, or CI/CD

But more than skills, we’re looking for someone who’s:

✔️ Eager to learn

✔️ A team player with good communication

✔️ Curious, proactive, and ready to grow with us

Job Overview:

We are looking for a Java React Developer to join our development team. The ideal candidate will have experience working with Java (Spring Boot) for backend development and React.js for frontend applications. You will be responsible for building scalable web applications, integrating RESTful APIs, and ensuring a seamless user experience.

Key Responsibilities:

• Develop and maintain web applications using Java (Spring Boot) for backend and React.js for frontend.
• Design and implement RESTful APIs for communication between frontend and backend.
• Optimize applications for speed, scalability, and security.
• Work with databases such as MySQL, PostgreSQL, or MongoDB.
• Write clean, maintainable, and efficient code following best practices.
• Collaborate with cross-functional teams, including designers, product managers, and other developers.
• Perform unit testing, integration testing, and debugging.
• Participate in Agile methodologies like Scrum and Sprint planning.
• Deploy applications using CI/CD pipelines and cloud platforms (AWS, Azure, or Google Cloud).

Required Skills:

• Java & Spring Boot (Core Java, REST APIs, Microservices, JPA, Hibernate).
• React.js (Hooks, Redux, Context API, Functional Components).
• Experience with HTML, CSS, JavaScript, and TypeScript.
• Strong knowledge of RESTful APIs and Web Services.
• Experience with databases like MySQL, PostgreSQL, MongoDB.
• Understanding of JWT/OAuth for authentication.
• Familiarity with CI/CD tools (Jenkins, GitHub Actions, GitLab CI/CD).
• Knowledge of Docker and Kubernetes is a plus.
• Experience with unit testing frameworks (JUnit, Jest, Mocha) is a plus.

**Responsibilities:**

- Lead the backend development team, providing mentorship and guidance to junior developers.

- Design, develop, and maintain robust backend systems using Node.js and NestJS with TypeScript.

- Implement event sourcing and message queue solutions using technologies such as Kafka or RabbitMQ.

- Utilize strong PostgreSQL knowledge to design, optimize, and manage databases effectively.

- Implement DevOps practices and tools to ensure continuous integration and delivery (CI/CD), containerization with Docker, and orchestration with Kubernetes.

- Collaborate closely with frontend developers to integrate backend services with user interfaces seamlessly.

- Lead and contribute to architectural discussions and decisions to ensure scalability, reliability, and performance of our systems.

- Troubleshoot and resolve technical issues promptly, demonstrating strong analytical and problem-solving skills.

**Requirements:**

- Bachelors or Masters degree in Computer Science, Engineering, or a related field.

- 5+ years of experience in software development, with a significant focus on backend technologies.

- Proven leadership experience as a team lead or senior developer, with a track record of mentoring junior developers and leading successful projects.

- Profound expertise in Node.js and NestJS with TypeScript.

- Experience with event sourcing and message queues (e.g., Kafka, RabbitMQ).

- Strong knowledge of PostgreSQL, including database design, optimization, and management.

- Solid understanding of DevOps practices and tools (CI/CD, Docker, Kubernetes, AWS/GCP/Azure).

- Ability to collaborate effectively with cross-functional teams, including frontend developers.

- Strong analytical skills and problem-solving abilities.

- Excellent communication and leadership skills.

• Angular.JS experience
• MongoDB query and aggregation experience (not a database administrator)
• GraphQL experience
• Node.JS and Typescript experience
• CSS and SCSS experience
• CI/CD experience with GitHub actions

• Software development experience, one of Python (preferred) or Node.JS/Typescript)
• Experience with Messaging architectures - RabbitMQ (preference) or Kafka
• Experience with docker-containers 
• Experience with Apache NiFi (valued but not necessary)
• Experience with designing or implementing horizontally scalable solutions
• Experience working with RESTful APIs
• CI/CD experience with GitHub actions
• Experience with Azure cloud

Experience: 5+Years
Location: India(Remote)

What’s the opportunity?

AiTrillion is looking for a Sr. Developer with experience in

• PHP
• Zend Framework CI
• NodeJS, Express
• Loopback
• Serverless Framework & CLI
• AWS Lambda
• API Gateway with MySQL
• MongoDB
• DynamoDB database experience

What will you be doing? 

• Strong Development/Management background with experience in Developing Products with large-scale user transactions and having critical business nature.
• Must be able to build the technical architecture/stack of the product from scratch including server interactions, scripts, deployment stage, features with a cost-effective manner.
• Hands-on implementation of the critical interfaces and complex modules of the systems and features as a solution architecture and design.
• Provide timely deliverables, estimates, and complete tasks in an Agile development environment.
• Reviewing code for coding standards and accuracy and functionality.
• Help the team to solve complex coding problems and troubleshoot the issues.

What skills do you need?

• Minimum 5+years of Technical Lead experience.
• Handle on any MVC PHP Frameworks Like Zend Framework, Laravel
• Must have experience on  NodeJS, Express, Loopback
• Good to have hands-on Serverless Framework & CLI, AWS Lambda, API Gateway, SQS, SNS, Step Functions
• Must have experience working with JavaScript technologies like NodeJS, AngularJS,  React.
• Hands-on  Relation, Non-relation, MYSQL, Data Lakes, HIVE, Apache Spark, MongoDB, Apache Cassandra, Streaming Analytics, In-Memory, NoSQL Database.
• Must have a good understanding of building and using REST APIs and Different Authentication Protocols.
• Good to have experience with  Amazon Web Services (EC2, RDS Aurora, Lambda, API Gateway, S3, CloudFront )
• Must have experience building microservices and customer-facing APIs.
• Must have a sound understanding of failure modes, resiliency patterns, and techniques to enable robust, self-healing architecture.
• Develop Business Domain-Driven Reusable Microservices.
• Knowledge of version control systems like GIT (mandatory).
• Experience with Google Cloud is a plus.
• Experience with the process of automation and load testing is a plus.

At AiTrillion, we are committed to building and fostering an environment where our employees feel included, valued, and heard. Our belief is that a strong commitment to diversity and inclusion enables us to truly make commerce better for everyone. We strongly encourage applications from Indigenous peoples, racialized people, people with disabilities, people from gender and sexually diverse communities and/or people with intersectional identities.

Desired Profile

 Feasibility assessments – Outline Risks , Design , Effort / Cost Estimate.

 Analyse, design, document, and agree - Solutions to meet requirements / timelines.

 Produce refined estimates of effort, time, resource, and costs for work requests.

 Work effectively with Product Managers and Product Owners to ensure delivery against agreed priorities.

 Develop code, perform peer code reviews, and complete integration tests.

 Ensure delivery of high quality, fit-for-purpose solutions – Follow software development & architectural principals.

 Ensure all solutions maintain the integrity of data throughout capture, processing, and storage.

 Engage with the various testing teams, facilitating systems Test, UAT & other test phases.

 Ensure all software changes are prepared for deployment into PRODUCTION, following CPP’s change control processes.

 Provide regular development progress reports to key stakeholders as necessary.

 Maintain effective documentation and share expertise with colleagues to eliminate single points of expertise within the team.

 Research the external environment, and where appropriate identify and recommend external partners for the delivery of best in class technologies suitable for CPP applications.

 Understanding the use cases (and/or user stories) in order to oversee the design of the architecture for the products to be built.

Skills:

Significant “hands on” software development/support experience gained in a commercial environment with React & Node.

Demonstrable knowledge of Postgres database technology.

Proven experience of using automated test tools/frameworks (e.g. Spock, Selenium, JEB) and Continuous Integration tools (e.g. Hudson, Jenkins).

Experience in a range of software development methodologies (e.g. Agile/SCRUM, Waterfall, DevOps) and secure coding standards (e.g. OWASP).

Knowledge of payment processing regulations (PCI-DSS) and security standards (ISO 27001).

Knowledge of other software development tools (e.g. Stash, Jira, Git).

 Degree in a relevant IT discipline, or equivalent experience gained in a relevant industry

Position: Full Stack developer

Location: Bangalore

Experience:  3 to 5 years, preferably in an agile environment

RESPONSIBILITIES
·     Understanding requirements present in specification documents
·     Knowledge on cloud environment
·     API development for consumption by webapp and mobile apps
·     Database schema design
·     Integration with partner systems based on REST APIs
·     Working with code base across multiple development & staging environments
·     Take part in User Acceptance Testing (UAT)
·     Be part of Production deployment & release activities

TECH SKILLS
·     Must Have:
*       Python and Node Js
*       RDBMS :Postgre SQL/ MongoDB
*       Must have knowledge on AWS or Digital Ocean
*       Good documentation skills
·     Good to have:
*       Javascript
*       RabbitMQ
*       Django
*       Docker
*       Redis
*       Flask
*       nginx
*       graylog