Full Stack Engineer (Fintech Focused) Job ID: 384225

8byte; India; On-site; INR 1,200,000 - 2,400,000; Full time

Benefits offered by this job

Equity options (ESOPs)

Health insurance

Performance-based bonuses

Job summary

8byte is seeking an experienced Full Stack Engineer to design, build, and scale high-performance web applications and secure backend systems for fintech and SaaS solutions.

You will collaborate with product, design, and AI/ML teams to deliver reliable, scalable financial applications using React.js, Next.js, Node.js, NestJS, and AWS. Knowledge of security and compliance in fintech is preferred.

Qualifications

• Bachelor’s or Master’s degree in a technical field (CS/CE/IT) is mandatory.
• Strong experience with React.js, Next.js, and TypeScript.
• Proficiency in Node.js/NestJS and REST/GraphQL APIs.
• Experience with AWS, Docker, Kubernetes, and CI/CD pipelines.

Responsibilities

• Design, build, and scale high-performance web applications.
• Develop secure RESTful and GraphQL APIs with microservices.
• Work with cloud infrastructure and DevOps pipelines.

Skills

Frontend React.js/Next.js/TypeScript

Backend Node.js/NestJS

PostgreSQL

AWS/Cloud

Redis/MongoDB

Docker/Kubernetes

REST/GraphQL

Education

Bachelor’s or Master’s in CS/CE/IT

Tools

Express.js

Job description

About the Role

We are seeking an experienced Full Stack Engineer to design, build, and scale high-performance web applications and secure backend systems for our fintech and SaaS solutions.

In this role, you will work closely with product, design, and AI/ML teams to build reliable, high-throughput financial applications. The ideal candidate brings a strong background in modern JavaScript/TypeScript frameworks, cloud infrastructure, and distributed systems, coupled with a solid understanding of fintech workflows, security, and scalability.

Key Responsibilities

• Full-Stack Development: Design, build, and maintain high-performance, responsive applications using React.js, Next.js, Node.js, and NestJS.
• API & Architecture Design: Develop secure RESTful and GraphQL APIs, incorporating microservices and event-driven architecture.
• Database & Caching: Design, optimize, and manage relational databases (PostgreSQL) and implement caching solutions (Redis) for peak performance.
• Asynchronous Processing: Build event-driven pipelines using messaging queues like Kafka or RabbitMQ.
• Cloud & DevOps: Containerize applications using Docker, support Kubernetes deployments, maintain AWS cloud infrastructure, and manage automated CI/CD pipelines.
• AI/ML Integration: Collaborate with AI/ML teams to integrate intelligent, automated services into production applications.
• Security & Compliance: Enforce industry-standard security practices—including robust authentication, authorization, data encryption, and compliance with financial regulations.
• Code Quality: Write clean, modular, maintainable, and well-tested code following agile engineering practices.

Requirements & Qualifications

Education

• Bachelor’s or Master’s degree in Computer Science, Computer Engineering, Information Technology, or a related technical field is mandatory.

Primary Skills (Must-Have)

• Frontend: React.js, Next.js, TypeScript
• Backend: Node.js, NestJS
• Database: PostgreSQL
• Cloud: AWS (Amazon Web Services)

Secondary & Technical Competencies

• Databases & Caching: Redis, MongoDB
• DevOps & Infrastructure: Docker, Kubernetes, Terraform, CI/CD Pipelines
• APIs & Protocols: REST, GraphQL, WebSockets, Webhooks, gRPC
• Messaging Systems: Kafka / RabbitMQ
• Version Control: Git & GitHub

What You’ll Bring

• 4–5 years of hands-on software engineering experience within Fintech or SaaS domains.
• Proven track record of owning features end-to-end—from system design to production deployment.
• Strong expertise in distributed systems, SQL optimization, and backend architecture.
• Sound knowledge of Data Structures, Algorithms, and System Design patterns.
• Strong problem-solving abilities and clear technical communication skills.

Preferred Qualifications

• Domain experience in Payments, Lending, Neo-banking, Wealth Tech, or Insurance Tech.
• Hands-on exposure to AI-driven products or machine learning integrations.
• Experience working in fast-paced Agile environments.

Tech Stack

• Frontend: React.js, Next.js, TypeScript
• Backend: Node.js, NestJS, Express.js
• Database & Caching: PostgreSQL, MongoDB, Redis
• Cloud & DevOps: AWS, Docker, Kubernetes, Terraform, CI/CD Pipelines
• Messaging & Real-time: Kafka, RabbitMQ, WebSockets, Webhooks, gRPC

What We Offer

• Competitive fixed salary + Performance-based bonuses
• Equity options (ESOPs)
• Comprehensive health insurance coverage
• Direct impact and ownership of core fintech architecture
• Collaborative, high-growth engineering culture