About the job

Hiring: Full Stack Product Developer Company: GreyOak Capital Intelligence Pvt. Ltd.

Location: Mumbai, Maharashtra

Work Mode: Full-Time, Work From Office

Salary: ₹30,000 – ₹45,000 per month in-hand, based on skill and practical task performance

Experience: Minimum 3 years of hands-on product development experience required

Employment Type: Full-Time

Work Location: In person About GreyOak

GreyOak Capital Intelligence Pvt. Ltd. is building fintech and market intelligence products for traders, investors, research workflows, portfolio analysis, dashboards, and internal decision systems.

This is not a basic website developer role.

We are looking for a serious Full Stack Product Developer who can build working software features end-to-end across frontend, backend, database, authentication, dashboards, APIs, admin systems, deployment support, and bug fixing.

This role is suitable for someone who has already built real web applications, admin panels, dashboards, SaaS tools, CRM systems, fintech tools, analytics platforms, or internal product systems.

Important Before

Applying

Please do not apply if your experience is limited to:

Static websites only

WordPress-only development

Frontend-only UI work

Basic HTML/CSS pages

Only connecting frontend screens to ready-made APIs

Only copying templates

Only working under constant senior supervision

Only making landing pages without backend or product logic

This is a product development role. You must be able to take a requirement and convert it into a working feature.

What You Will

Build

You will work on real product modules such as:

Client login and onboarding flows

Protected dashboards

Admin panels

User roles and permissions

Portfolio upload and report delivery systems

Market intelligence dashboards

Financial data modules

CMS-driven blogs, FAQs, glossary, landing pages, and help pages

Investor quiz and risk profiling workflows

Research delivery workflows

CRM, email, WhatsApp, analytics, and payment integrations

Internal tools for product, research, sales, and operations teams

Backend APIs for product workflows

Database structures for users, subscriptions, reports, dashboards, and content systems Core Responsibilities

Your day-to-day responsibilities will include:

Convert Figma designs or UI references into clean, responsive frontend pages

Build reusable frontend components using React.js / Next.js

Build dashboards, tables, filters, search, pagination, forms, charts, and admin workflows

Create backend APIs for product features

Design and manage database tables

Handle CRUD operations properly

Implement login, JWT authentication, protected routes, user roles, and permissions

Connect frontend pages properly with backend APIs

Manage loading states, validation, error states, empty states, and success states

Debug frontend issues, API failures, backend errors, database issues, and deployment problems

Improve website speed, mobile responsiveness, SEO structure, and user experience





Work with Git/GitHub properly

Push clean, readable, and maintainable code

Support deployment, hosting, and production bug fixing

Work directly with founders, product, quant, design, and business teams

Convert business requirements into working product features without needing step-by-step spoon-feeding Must-Have Technical Skills

Please apply only if you are strong in most of the following:

Minimum 3 years of hands-on development experience

Strong React.js and/or Next.js experience

Strong JavaScript, HTML, CSS, and responsive design skills

Experience with Tailwind CSS, MUI, Bootstrap, or similar UI frameworks

Ability to build dashboards, admin panels, forms, filters, tables, and reusable components

Strong REST API integration experience

Backend development experience with Node.js / Express.js, FastAPI, PHP / Laravel, or similar backend framework

Ability to create backend APIs independently

Experience with MySQL, PostgreSQL, MongoDB, or similar databases

Ability to design basic database schemas

Strong understanding of CRUD operations

Understanding of login flows, JWT, protected routes, sessions, RBAC, and form validation

Ability to debug frontend, backend, API, database, and deployment issues independently

Working knowledge of Git and GitHub

Basic deployment knowledge using Vercel, VPS, AWS, Docker, or similar hosting environment Backend Expectations

This role requires backend ownership. You should be able to:

Create APIs from scratch

Structure routes, controllers, and services properly

Design database tables

Handle user authentication and access control

Connect APIs with frontend screens

Debug API errors

Handle file upload flows

Manage data fetching, filtering, searching, and pagination

Understand production bugs and fix them without blaming frontend, backend, or database separately

Work with logs, errors, server responses, and API testing tools Frontend Expectations

You should be able to:

Build clean React / Next.js pages

Create responsive layouts

Build dashboard components

Handle tables, forms, filters, tabs, modals, cards, charts, and reusable UI blocks

Connect APIs properly

Handle loading, error, success, and empty states

Make pages usable on desktop and mobile

Keep UI clean, professional, and production-ready Good To Have The following skills are useful but not mandatory:

Fintech, SaaS, analytics, dashboard, or data-heavy product experience

Stock market, financial data, reporting dashboard, or portfolio tool experience

Headless CMS or WordPress CMS integration

Payment gateway integration

CRM integration

WhatsApp API or email automation

Redis, caching,



or backend performance optimization

SEO, Core Web Vitals, Google Search Console, or page-speed optimization

AWS, VPS, Docker, Nginx, Vercel, or basic server management

Experience with charts and financial data visualization What Kind of Person We Want

We are looking for someone who is:

Product-minded, not only task-minded

Strong in execution

Comfortable with both frontend and backend

Able to take ownership of a feature from requirement to live output

Able to debug independently

Clear in communication

Disciplined with daily work updates

Comfortable working from office

Comfortable with deadlines

Interested in long-term growth with a fintech startup

Honest about what they know and what they do not know

Quick enough to ship working features without unnecessary delay What Kind of Person This Role Is Not For

This role is not suitable for someone who:

Needs a separate backend developer for every API

Needs a separate frontend developer for every UI change

Needs a senior developer to explain every normal task

Cannot debug independently

Cannot work from office

Cannot push code regularly

Cannot complete a practical task

Has only worked on basic websites

Has never built dashboards, admin panels, or real product workflows

Is not comfortable with database and backend responsibility Practical Task Is Mandatory

Shortlisted candidates will be given a practical development task before final selection.

The task may include

Frontend UI creation

Backend API creation

Database CRUD operation

Login/authentication flow

Role-based protected dashboard

Form validation

Table, filter, search, and pagination

API integration

GitHub submission

Basic deployment or working demo

We value real working output more than resume keywords.

Candidates who are not comfortable completing a practical task should not apply.

Application

Requirements

While applying, please share:

Resume

GitHub profile, if available

Portfolio or live project links, if available

Details of 2–3 real products, dashboards, admin panels, or applications you have personally worked on

Current salary

Expected salary

Notice period

Confirmation that you are available for full-time work from our Mumbai office

Applications without relevant project details may not be shortlisted. Job Details

Company: GreyOak Capital Intelligence Pvt. Ltd.

Role: Full Stack Product Developer — Backend-Heavy

Location: Mumbai, Maharashtra

Work Mode: Full-Time, Work From Office

Salary: ₹30,000 – ₹45,000 per month in-hand

Experience: Minimum 3 years required

Employment Type: Full-Time

Work Location: In person Relevant Skills

React.js, Next.js, JavaScript, TypeScript, HTML, CSS, Tailwind CSS, MUI, Node.js, Express.js, FastAPI, PHP, Laravel, REST APIs, MySQL, PostgreSQL, MongoDB, Git, GitHub, Dashboard Development, Admin Panels, Authentication, JWT, RBAC, CMS Integration, Deployment, API Development, SaaS Development, Fintech Products.

📌 Full Stack Developer (Mumbai)
🏢 GreyOak Capital Intelligence
📍 Mumbai