TeamFlow — Development Story

CLIENT

About the client

A leading domestic contract-development firm at the forefront of the industry.

The contract-development firm takes on large-scale system development for multiple client companies. With over 100 engineers, PMs, sales, QA and HR staff in-house, each department ran its work on different tools (Excel, SaaS, spreadsheets). Data was scattered, the linkage between effort, evaluation and hiring was lost, and month-end tallying and evaluation meetings demanded enormous manual work.

Aiming for 'every employee running their work from the same screen,' we built an in-house integrated business-management SaaS. Over 30 modules — HR, project management, sales & accounting, QA, hiring — are linked through one database, with role-based access control delivering a UI optimized for each department.

Employee scale supported

100+ staff All staff

Business modules

30+ Feature integration

Departments covered

All departments HR/PM/Sales/QA

BUSINESS FLOW

STEP

Daily work entry

Enter attendance, effort and requests from one platform

STEP

Auto-linkage

Project × effort × evaluation data auto-link

STEP

Dashboard

Instantly visualize KPIs per department

STEP

Management decisions

Decide instantly, with no wait for month-end tallying

CHALLENGE

Design challenges to solve

The four structural requirements demanded of the platform.

None of these are technology-choice problems — they are business requirements tied directly to operational efficiency, cross-department integration, data consistency and extensibility. A from-scratch build had to satisfy all of them at once.

① Leave tools scattered and data linkage is lost forever

If attendance lives in Excel, effort in SaaS and evaluations in yet another tool, projects, HR and accounting stay disconnected — and that becomes the permanent state.

② Keep running monthly Excel tallying and productivity stalls

Tally attendance → effort → evaluation data in Excel at month-end and the first days of each month are lost to clerical work.

③ Bolt on role permissions later and security holes remain

Payroll, evaluation and customer data in a state visible to every employee leaves the company unable to operate sustainably. Department-level RBAC is needed from day one.

④ A design that makes adding modules hard halts operational growth

When every new business function (new department, new evaluation system) demands schema rework and full-feature regression — operations ossify.

ARCHITECTURE

The architecture we built together

Turning internal operations into an unstoppable platform across four domains.

We built, in-house and from scratch, an integrated business-management platform to support the contract-development firm's internal operations. Four structural requirements — a unified data platform, module extensibility, role permissions and UI integration — were each designed together with Amela into an architecture that achieves operational efficiency, cross-department linkage and security all at once.

Domain ①

Unified data platform

Challenge

Leaving tools scattered means data linkage is lost forever.

Solution

All company operations consolidated into one MySQL database

With Knex + Objection ORM, 30+ modules reference the same database, guaranteeing cross-department linkage

Domain ②

Module extensibility

Challenge

A design that makes adding modules hard stops operational expansion.

Solution

Express module-separation design

Each business module is split into an independent router, so adding a new module causes no regression to other features

Domain ③

Role permissions

Challenge

Implementing role permissions as an afterthought leaves security holes.

Solution

JWT + role-based RBAC enforced on every API

6+ roles (employee/PM/HR/sales/accounting/admin) defined centrally; every API checked in middleware

Domain ④

UI integration

Challenge

Keep running monthly Excel tallying and productivity will not grow.

Solution

Large-scale grids handled with React + Material-UI + DevExpress Grid

Renders large datasets — attendance, WOs, candidates — in fast grids, with real-time visualization via Highcharts

TECH STACK

Frontend

React

Material-UID DevExpress GridH Highcharts

Webpack

Backend

Express

Node.jsK Knex + Objection

JWT auth

Infra

MySQL

AWS S3

Docker

Google auth

IMPACT

The value the platform creates

The contract-development firm's operational efficiency accelerates.

This platform delivers business outcomes continuously — reduced operating hours, data consistency and cross-department integration — not just technical metrics.

① A platform that compresses operating hours

Month-end tallying, approval workflows and evaluation entry converge on one platform, sharply cutting the monthly Excel tallying effort.

② Design that guarantees data consistency

Consolidating into one database keeps attendance × effort × evaluation always consistent.

③ An architecture that achieves cross-department linkage

Effort a PM sees auto-links to HR's evaluation entries and accounting's invoicing.

④ A design that lets you focus on extension

New operations (a new evaluation system, a new department) ship to production by adding just an independent router.

Scattered internal tools, unified into one integrated platform.

A leading domestic contract-development firm at the forefront of the industry.

The four structural requirements demanded of the platform.

Turning internal operations into an unstoppable platform across four domains.

The contract-development firm's operational efficiency accelerates.

Experience the contract-development firm's solution in a live demo.