Full Stack Developer

Key Responsibilities

Develop and maintain scalable applications using MongoDB, MySQL/PostgreSQL, Node.js, Express.js, React.js, and TypeScript.

Design, develop, and optimize RESTful APIs and GraphQL services.

Lead and mentor a team of developers, ensuring best coding practices, performance, and security.

Collaborate with UI/UX designers, product managers, and DevOps teams to streamline development.

Contribute to AI-powered application development (if experienced in AI/ML).

Required Skills & Qualifications

✅ 3+ years of experience in MERN stack development.

✅ Expertise in React.js, TypeScript, Node.js, and Express.js.

✅ Strong database management skills with MongoDB, MySQL, or PostgreSQL.

✅ Proven experience in leading development teams and conducting code reviews.

✅ Excellent problem-solving and communication skills.

✅ Bonus: Experience in AI/ML-based applications is a plus.

Why Join Us?

🚀 Exciting Projects – Work on AI-driven and scalable web solutions.

🤝 Leadership Opportunity – Lead and mentor a talented team of developers.

🏡 Dynamic Work Environment – Collaborative, innovation-driven workplace.

Responsibilities

• Design and develop scalable web applications using Java and Angular/React
• Collaborate with cross-functional teams to define, design, and ship new features
• Maintain code quality through code reviews and automated testing
• Implement RESTful APIs to support front-end functionality
• Troubleshoot and debug applications to ensure optimal performance
• Participate in agile development processes and contribute to continuous improvement

Qualifications

• Bachelor's degree in Computer Science or related field
• 3+ years of experience in full stack development using Java and Angular/React
• Strong understanding of front-end technologies like HTML, CSS, and JavaScript
• Experience with back-end development including RESTful API design
• Familiarity with database technologies such as SQL and NoSQL
• Excellent problem-solving skills and attention to detail

Location : Bengaluru, India

Type : Full-time

Experience :4-7 Years

Mode :Hybrid

The Role

We're looking for a Full Stack Engineer who thrives on building high-performance applications at scale. You'll work across our entire stack—from optimizing PostgreSQL queries on 140M+ records to crafting intuitive React interfaces. This is a high-impact role where your code directly influences how sales teams discover and engage with prospects worldwide.

What You'll Do

• Build and optimize REST APIs using Django REST Framework handling millions of records
• Design and implement complex database queries, indexes, and caching strategies for PostgreSQL
• Develop responsive, high-performance front-end interfaces with Next.js and React
• Implement Redis caching layers and optimize query performance for sub-second response times
• Design and implement smart search/filter systems with complex logic
• Collaborate on data pipeline architecture for processing large datasets
• Write clean, testable code with comprehensive unit and integration tests
• Participate in code reviews, architecture discussions, and technical planning

Required Skills

• 4-7 years of professional experience in full stack development
• Strong proficiency in Python and Django/Django REST Framework
• Expert-level PostgreSQL knowledge: query optimization, indexing, EXPLAIN ANALYZE, partitioning
• Solid experience with Next.js, React, and modern JavaScript/TypeScript
• Experience with state management (Zustand, Redux, or similar)
• Working knowledge of Redis for caching and session management
• Familiarity with AWS services (RDS, EC2, S3, CloudFront)
• Understanding of RESTful API design principles and best practices
• Experience with Git, CI/CD pipelines, and agile development workflows

Nice to Have

• Experience with Elasticsearch for full-text search at scale
• Knowledge of data scraping, ETL pipelines, or data enrichment
• Experience with Celery for async task processing
• Familiarity with Tailwind CSS and modern UI/UX practices
• Previous work on B2B SaaS or data-intensive applications
• Understanding of security best practices and anti-scraping measures

Our Tech Stack

Backend

Python, Django REST Framework

Frontend

Next.js, React, Zustand, Tailwind CSS

Database

PostgreSQL 17, Redis

Infrastructure

AWS (RDS, EC2, S3, CloudFront), Docker

Tools

GitHub, pgBouncer

Why Join Us

• Work on a product processing 140M+ records—real scale, real challenges
• Direct impact on product direction and technical decisions
• Modern tech stack with room to experiment and innovate
• Collaborative team environment with a focus on growth
• Competitive compensation and flexible hybrid work model

MERN STACK DEVELOPER

ABOUT US

Datacultr is a global Digital Operating System for Risk Management and Debt Recovery, we drive Collection Efficiencies, Reduce Delinquencies and Non-Performing Loans (NPL’s). Datacultr is a Digital-Only provider of Consumer Engagement, Recovery and Collection Solutions, helping Consumer Lending, Retail, Telecom and Fintech Organizations to expand and grow their business in the under-penetrated New to Credit and Thin File Segments.

We are helping millions of new to credit consumers, across emerging markets, access formal credit and begin their journey towards financial health. We have clients across India, South Asia, South East Asia, Africa and LATAM.

Datacultr is headquartered in Dubai, with offices in Abu Dhabi, Singapore, Ho Chi Minh City, Nairobi, and Mexico City; and our Development Center is located out of Gurugram, India.

ORGANIZATION’S GROWTH PLAN

Datacultr’s vision is to enable convenient financing opportunities for consumers, entrepreneurs and small merchants, helping them combat the Socio-economic problems this segment faces due to restricted access to financing.

We are on a mission to enable 35 million unbanked & under-served people, access financial services by the end of 2026.

Position Overview

We are looking for a talented and enthusiastic MERN Stack Developer to join our development team. As a MERN developer, you will be responsible for building and maintaining full-stack web applications using MongoDB, Express.js, React.js, and Node.js.

Core Responsibilities

• Develop, test, and maintain full-stack web applications using the MERN stack (MongoDB, Express.js, React.js, Node.js).
• Design and implement robust, scalable, and secure RESTful APIs and backend services.
• Collaborate with UI/UX designers to build responsive, intuitive, and user-friendly web interfaces.
• Optimize applications for performance, speed, and scalability.
• Write clean, well-documented, and maintainable code following best practices.
• Participate in code reviews, team discussions, and agile ceremonies to ensure high-quality software delivery.
• Bonus skills: Familiarity with TypeScript, Docker, and CI/CD pipelines is a strong plus.
• Experience with cloud platforms such as AWS will be considered an added advantage.

Key Requirements

• 1 – 2.5 years of hands-on experience in full-stack development using the MERN stack.
• Proficiency in React.js, Node.js, Express.js, and experience with both PostgreSQL and MongoDB.
• Strong foundation in JavaScript, along with HTML5 and CSS3.
• ·Experience integrating and working with REST APIs and third-party APIs.
• ·Familiarity with Git and collaborative version control workflows.
• ·Solid problem-solving, debugging, and analytical skills.
• · Experience working in an Agile/Scrum development environment.

What We Offer

•  Opportunity to shape the future of unsecured lending in emerging markets
•  Competitive compensation package
•  Professional development and growth opportunities
• Collaborative, innovation-focused work environment
• Comprehensive health and wellness benefits

Location & Work Model

• Immediate joining possible 
• Work From Office only
• Based in Gurugram, Sector 65

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)

• Core Java  (Collections,  Annotations, Threads, Exceptions)
  Java 8  ( Must)
  Spring Core (Must)
  Spring Boot, Spring Cloud, Micro services (Must)
  Angular / React , Bootstrap ( Good to have)
  Docker / Kubernetes  ( Good to have) Pivotal Cloud Foundry / Tanzu Services ( Good to have)

What you’ll do - 

1. Design and implementation of the overall web architecture.
2. Design and deployment of database.
3. Ensuring the entire stack is designed and built for speed and scalability.
4. Design and construction of our REST API
5. Integrating our front-end UI with the constructed API
6. Design and implementation of continuous integration and deployment.
7. Work remotely with our global clients and teams across the US

What you should have - 

1. Should have 5+ years of experience expertise in developing applications using any of the frameworks and programming languages
2. 5-8 years’ experience Fluent in CSS (Foundation or Bootstrap), JavaScript and HTML, with an understanding of CSS, React.JS
3. Experience working with server technologies Node.js
4. Experience in API design and development.
5. Understanding of SQL / NoSQL databases MongoDB.
6. Strong knowledge of data structures, system design, and algorithms.
7. Great organizational and time-management skills.
8. Great interpersonal and communication skills.