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.

 Role Summary 

Looking for a skilled Full Stack Developer with expertise in Java Spring Boot and Angular/React to build and maintain scalable web applications.

 Key Responsibilities 

- Develop backend services using Java & Spring Boot

- Build responsive UIs with Angular/React

- Design and consume REST APIs & microservices

- Collaborate with cross-functional teams

- Ensure code quality, performance, and scalability

- Strong analytical skills to drive and clarify requirements with the client

 Required Skills 

- Strong experience in Java (Spring Boot)

- Proficiency in Angular and/or React

- Solid understanding of REST APIs & microservices

- Experience with SQL/NoSQL databases

- Knowledge of Git, CI/CD pipelines

 Good to Have 

- Cloud (AWS/Azure/GCP), Docker/Kubernetes

- Kafka/RabbitMQ, Agile methodologies

• C#, .NET, ASP.NET, Web API, MVC, Entity Framework
• JavaScript, Angular (React, Vue.js, Knockout.js also considered)
• SQL Server, relational databases (NoSQL is a plus)
• Microsoft Azure, AWS
• Docker, CI/CD pipelines
• SaaS and cloud-native architecture

Responsibilities

• Design and develop full stack web applications using .NET and Angular
• Build scalable APIs and backend services with C# and ASP.NET
• Develop responsive front-end components using JavaScript frameworks
• Optimise application performance, scalability, and security
• Work with SQL Server and data access layers
• Collaborate with product managers, designers, and engineers in an Agile environment
• Participate in code reviews and follow engineering best practices

Senior / Project Lead Responsibilities (If Applicable)

• Technical ownership across the software development lifecycle
• Architecture and technical design decisions
• Mentoring junior engineers
• Estimation, planning, and technical problem-solving

Requirements

• 3–5+ years of experience as a Software Engineer / Full Stack Developer
• Strong commercial experience with C#, .NET, and JavaScript
• Experience with Angular or similar front-end frameworks
• Cloud experience with Azure and/or AWS
• Knowledge of Docker, CI/CD, and DevOps practices
• Experience building scalable, production-grade web applications
• SaaS experience is highly desirable

Nice to Have (Boosts Search Reach)

• Node.js
• Microservices architecture
• NoSQL databases
• Automated testing frameworks (Jest, Mocha)

The Role

This role is anything but conventional- It is an opportunity to define and execute our plans and make an impact on the development of millions of children.

As our tech lead, you will work closely with the founders to crystallize and own the product roadmap and then, to bring the product vision to life through simple, elegant design & code that delights users.

You will be the key architect of the product and will help the engineering team build and maintain the product across mobile and web. 

You will own development and delivery of the code- including analysis, optimization and debugging.

Key Skills

3-6 years of experience with backend and frontend web-based application development

2+ years of experience with React / Redux + HTML/CSS

2+ years of experience with Python

Have some experience with databases (SQL, MongoDB)

Have created meaningful APIs and models that are flexible and scalable

About You

You will thrive in this role at KinderPass if you:

• Have a passion for our mission to re-imagine child health and development
• Have the drive to be part of building something new - to learn, to work hard, to be your best self and to adapt to the constant change and evolution of a start-up.
• Enjoy autonomy and flexibility but can work well in a team
• Count Ownership and Reliability as your key strengths
• Can communicate effectively

Job description

Finzly is a fintech company, providing innovative solutions to meet the growing needs of Banks and Financial services firms in North America.

Our award-winning open banking platform, BankOS, allows banks to innovate at the speed of “NOW” and compete with Fintech companies in the market.

This is an excellent opportunity to be part of a team bringing innovation in the finance industry and be a proud engineer.  This means following the industry standards, using clean code and being bold while sharing your thoughts during tough technical conversations. We want you to be a part of all of this!

What we need from you:

• You will join our team to develop awesome products for our customers(Banks and Financial Institutions)
• You will be developing in Java, Spring Boot on the backend and Angular on the frontend
• Learn from our high performing teams, while at the same time providing feedback on how the team could do its job better
• Work with our product owners and help them to convert ideas into working products.
• Sharp focused on delivery. We are results-oriented and need self-starters who do not wait around for direction.

What we need you to bring:

• Deep passion for developing software and continuous learning attitude to write more efficient code.
• Someone who wants to work in a strong team and influence that team on how to perform better
• You enjoy sliding between both front-end and back-end stacks to solve problems instead of just “writing code”
• 5 or more years of experience writing code for web products.
• You have worked with cloud technology

Bonus Points / Nice to Have

• Understanding of CI/CD/Docker/
• Experience/understanding payment processing / payment gateways, e.g. ACH, RTP, SWIFT, PCI compliance
• Experience on messaging and distributed caching.

Our Interview process:

• Recruiter Call (15 min) – Specialist - Recruitment
• Online Programming Test/Offline Assignment(45 to 90 minutes) – Online (This is optional for early joiners)
• Technical Interview (45 to 90 minutes): Sr/Lead R&D Engineers
• System Design + Methodology Interview (1 hour): Director - Engineering
• Final Interview : India Head (1 hour)

ThoughtWorks is a global software consultancy with an aim to create a positive impact on the world through technology. Our community of technologists thinks disruptively to deliver pragmatic solutions for our clients' most complex challenges. We are curious minds who come together as collaborative and inclusive teams to push boundaries, free to be ourselves and make our mark in tech.

Our developers have been contributing code to major organizations and open source projects for over 25 years. They’ve also been writing books, speaking at conferences and helping push software development forward, changing companies and even industries along the way. We passionately believe that software quality is driven by open communication, review and collaboration. That’s why we’re such vehement supporters of open source and have made significant contributions to open source tools for testing, continuous delivery (GoCD), continuous integration (CruiseControl), machine learning and healthcare. 

As consultants, we https://www.thoughtworks.com/careers/hub/consultant-life">work with our clients to ensure we’re evolving their technology and empowering adaptive mindsets to meet their business goals. You could influence the digital strategy of a retail giant, build a bold new mobile application for a bank or redesign platforms using event sourcing and intelligent data pipelines. You will use the latest Lean and Agile thinking, create pragmatic solutions to solve mission-critical problems and challenge yourself every day.

You’ll spend time on the following:

• You will champion best practices like writing clean and reusable code using practices like TDD, SOLID principles, OO design, and pair programming
• You will partner with other technologists from cross-functional teams advocating devops culture
• You will work in collaborative, product-focused teams to build innovative customer experiences
• Take ownership and accountability beyond individual deliverables, always pushing the envelope in order to deliver awesome results for our clients
• Learn, digest and subsequently apply the latest technology thinking from ourhttps://www.thoughtworks.com/radar"> tech radar to solve client problems

Here’s what we’re looking for:

• You have 2+ years* of experience using two or more development languages (Java, JavaScript, Ruby, C#, etc.) with experience in Object-Oriented programming
• You can write clean, high-quality code in a variety of languages and are also able to spot (and improve) bad code
• You’re resilient in ambiguous situations and can approach challenges from multiple perspectives
• You have experience with Agile, Lean and/or Continuous Delivery approaches such as Continuous Integration, TDD, Infrastructure as Code, etc.
• Bonus points if you have knowledge of cloud technology such as AWS, Docker or Kubernetes
• You’re willing and able to commit to travel to client sites in order to solve their business problems

At ThoughtWorks, we’re committed to fostering an inclusive community for all technologists. Help us achieve a more balanced workplace by anonymously answering the following demographic questions.

We are seeking a Full Stack developer in Bangalore, India to join our development team. These roles represent a great opportunity for the right candidate.

Requirements:

• B. E/B. Tech/ M. Tech from a top-tier college.
• 3 to 5 years of experience in a product development environment.
• Good understanding of one or more topics such as React, Redux, JWT, and REST APIs.
• Experieence with Node and NPM (and the Node ecosystem in general).
• Comfortable working with Git/SVN and a good understanding of version control.
• Knowledge of SaaS/Microservices-based environments.
• Ability to understand business requirements/ workflows and come up with technical designs and implementations.
• Good communication skills (written as well as verbal/spoken).
• Understanding cloud environments would be a plus.

Responsibilities:

• Building and developing web application using Angular 2+, Node Js and Mongo DB
• Maintenance and support of existing application
• Problem solving, debugging and analytical skills
• Monitoring and deploying application on Microsoft Azure

Technical / Functional Skills:

• 2+ years of hands-on experience in Angular 2+, Node Js, Mongo DB and Microsoft Azure

• Strong experience in performance tuning of complex Mongo DB queries
• Good understanding of Typescript, JavaScript (ES6), CSS, HTML
• Experience in the contact center industry preferred
• Experience in using Git/Bitbucket or any version control tools
• Graduate in IT, Computer Science or similar relevant field preferred

Attitudinal skills:

• Must be able to work without much assistance
• Great communication and interpersonal skills
• Analytical and process-oriented mindset