Comet Project Pipeline - Project Management System

Overview

Comet Project Pipeline is a comprehensive project management application designed for PT Koperasi Metropolitan to streamline project workflows, qualification tracking, and documentation management. As the Team Lead, I managed a team of 5 developers and achieved a 20% increase in development efficiency through effective leadership and technical excellence.

Project Scope

This enterprise project management system provides:

• Qualification Tracking: Monitor project qualifications and requirements
• Documentation Management: Centralized document storage and version control
• Task Delegation: Assign and track tasks across team members
• Progress Monitoring: Real-time project progress and milestone tracking
• Reporting: Comprehensive project reports and analytics

Leadership Achievements

Team Management

• Led 5-Person Team: Coordinated development efforts across frontend, backend, and DevOps
• 20% Efficiency Gain: Implemented agile methodologies and best practices
• Code Quality: Maintained 95% test coverage through code reviews and CI/CD
• Knowledge Sharing: Conducted regular code reviews and technical workshops

Technical Leadership

• Architecture Design: Designed scalable microservices architecture
• Best Practices: Enforced clean code principles and SOLID design patterns
• Performance: Optimized database queries and API response times
• Security: Implemented role-based access control and data encryption

Technical Architecture

Backend (NestJS)

Scalable microservices architecture built with NestJS:

// Module Structure
@Module({
  imports: [
    TypeOrmModule.forRoot({
      type: 'postgres',
      host: process.env.DB_HOST,
      port: 5432,
      database: 'comet_pipeline',
      entities: [__dirname + '/**/*.entity{.ts,.js}'],
      synchronize: false,
    }),
    ProjectModule,
    TaskModule,
    DocumentModule,
    UserModule,
  ],
})
export class AppModule {}

// Clean Architecture: Project Service
@Injectable()
export class ProjectService {
  constructor(
    @InjectRepository(Project)
    private projectRepo: Repository<Project>,
    private taskService: TaskService,
  ) {}

  async createProject(dto: CreateProjectDto): Promise<Project> {
    const project = this.projectRepo.create({
      name: dto.name,
      description: dto.description,
      startDate: dto.startDate,
      endDate: dto.endDate,
      status: ProjectStatus.PLANNING,
    })

    return await this.projectRepo.save(project)
  }

  async assignTask(projectId: string, taskDto: CreateTaskDto): Promise<Task> {
    const project = await this.projectRepo.findOne({
      where: { id: projectId }
    })

    if (!project) {
      throw new NotFoundException('Project not found')
    }

    return await this.taskService.create(taskDto, project)
  }
}

Frontend (Next.js)

Modern, responsive dashboard built with Next.js App Router:

// app/projects/[id]/page.tsx
import { getProject } from '@/lib/api/projects'
import { ProjectHeader } from '@/components/projects/header'
import { TaskList } from '@/components/tasks/list'
import { DocumentManager } from '@/components/documents/manager'

interface PageProps {
  params: { id: string }
}

export default async function ProjectPage({ params }: PageProps) {
  const project = await getProject(params.id)

  return (
    <div className="container mx-auto px-4 py-8">
      <ProjectHeader project={project} />

      <div className="grid grid-cols-1 lg:grid-cols-3 gap-6 mt-8">
        <div className="lg:col-span-2">
          <TaskList projectId={project.id} />
        </div>

        <div>
          <DocumentManager projectId={project.id} />
        </div>
      </div>
    </div>
  )
}

Database Schema (Prisma)

Type-safe database access with Prisma ORM:

// schema.prisma
model Project {
  id          String   @id @default(cuid())
  name        String
  description String?
  status      ProjectStatus
  startDate   DateTime
  endDate     DateTime?

  tasks       Task[]
  documents   Document[]
  members     ProjectMember[]

  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt

  @@index([status])
  @@index([startDate, endDate])
}

model Task {
  id          String     @id @default(cuid())
  title       String
  description String?
  status      TaskStatus @default(TODO)
  priority    Priority   @default(MEDIUM)
  dueDate     DateTime?

  projectId   String
  project     Project    @relation(fields: [projectId], references: [id])

  assigneeId  String?
  assignee    User?      @relation(fields: [assigneeId], references: [id])

  createdAt   DateTime   @default(now())
  updatedAt   DateTime   @updatedAt

  @@index([projectId, status])
  @@index([assigneeId])
}

model Document {
  id          String   @id @default(cuid())
  title       String
  fileName    String
  fileUrl     String
  fileSize    Int
  mimeType    String
  version     Int      @default(1)

  projectId   String
  project     Project  @relation(fields: [projectId], references: [id])

  uploadedBy  String
  uploader    User     @relation(fields: [uploadedBy], references: [id])

  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt

  @@index([projectId])
}

enum ProjectStatus {
  PLANNING
  IN_PROGRESS
  ON_HOLD
  COMPLETED
  CANCELLED
}

enum TaskStatus {
  TODO
  IN_PROGRESS
  IN_REVIEW
  DONE
}

enum Priority {
  LOW
  MEDIUM
  HIGH
  URGENT
}

Key Features

Project Management

• Project Dashboard: Overview of all projects with status tracking
• Gantt Chart: Visual timeline for project planning
• Milestone Tracking: Monitor key project milestones
• Resource Allocation: Assign team members to projects

Qualification Tracking

• Requirement Management: Track project qualifications and requirements
• Compliance Monitoring: Ensure projects meet quality standards
• Audit Trail: Complete history of qualification changes
• Automated Alerts: Notifications for missing qualifications

Documentation System

• Version Control: Track document versions and changes
• Access Control: Role-based document permissions
• Search & Filter: Advanced document search capabilities
• File Preview: In-browser document preview

Task Management

• Task Assignment: Delegate tasks to team members
• Priority Management: Set task priorities and deadlines
• Status Tracking: Real-time task status updates
• Dependency Management: Define task dependencies

Team Collaboration Features

Real-time Updates

// WebSocket implementation for real-time updates
@WebSocketGateway({
  cors: { origin: '*' },
})
export class ProjectGateway {
  @WebSocketServer()
  server: Server

  @SubscribeMessage('joinProject')
  handleJoinProject(
    @MessageBody() projectId: string,
    @ConnectedSocket() client: Socket,
  ) {
    client.join(`project:${projectId}`)
  }

  async notifyTaskUpdate(projectId: string, task: Task) {
    this.server.to(`project:${projectId}`).emit('taskUpdated', task)
  }
}

Notification System

• Email Notifications: Task assignments and deadline reminders
• In-App Notifications: Real-time activity updates
• Slack Integration: Project updates to Slack channels
• Custom Alerts: Configurable notification preferences

Performance Optimizations

Database Optimization

1. Indexed Queries: Strategic database indexing for fast queries
2. Query Optimization: Efficient SQL queries with proper joins
3. Caching Layer: Redis caching for frequently accessed data
4. Connection Pooling: Optimized database connections

API Performance

// Redis caching for improved performance
@Injectable()
export class ProjectService {
  constructor(
    private projectRepo: Repository<Project>,
    private cacheManager: Cache,
  ) {}

  async getProject(id: string): Promise<Project> {
    const cacheKey = `project:${id}`

    // Check cache first
    const cached = await this.cacheManager.get<Project>(cacheKey)
    if (cached) return cached

    // Fetch from database
    const project = await this.projectRepo.findOne({
      where: { id },
      relations: ['tasks', 'members', 'documents'],
    })

    // Cache for 5 minutes
    await this.cacheManager.set(cacheKey, project, 300)

    return project
  }
}

Testing Strategy

Comprehensive Test Coverage

// Unit Tests
describe('ProjectService', () => {
  let service: ProjectService
  let repository: Repository<Project>

  beforeEach(async () => {
    const module = await Test.createTestingModule({
      providers: [
        ProjectService,
        {
          provide: getRepositoryToken(Project),
          useClass: Repository,
        },
      ],
    }).compile()

    service = module.get<ProjectService>(ProjectService)
    repository = module.get<Repository<Project>>(getRepositoryToken(Project))
  })

  it('should create a project', async () => {
    const dto: CreateProjectDto = {
      name: 'Test Project',
      description: 'Test Description',
      startDate: new Date(),
    }

    jest.spyOn(repository, 'create').mockReturnValue(dto as any)
    jest.spyOn(repository, 'save').mockResolvedValue(dto as any)

    const result = await service.createProject(dto)

    expect(result).toEqual(dto)
    expect(repository.create).toHaveBeenCalledWith(dto)
  })
})

// E2E Tests
describe('ProjectController (e2e)', () => {
  let app: INestApplication

  beforeAll(async () => {
    const moduleFixture = await Test.createTestingModule({
      imports: [AppModule],
    }).compile()

    app = moduleFixture.createNestApplication()
    await app.init()
  })

  it('/projects (POST)', () => {
    return request(app.getHttpServer())
      .post('/projects')
      .send({
        name: 'Test Project',
        startDate: '2024-01-01',
      })
      .expect(201)
      .expect((res) => {
        expect(res.body).toHaveProperty('id')
        expect(res.body.name).toBe('Test Project')
      })
  })
})

CI/CD Pipeline

Automated Testing & Deployment

# .github/workflows/ci-cd.yml
name: CI/CD Pipeline

on:
  push:
    branches: [main, develop]
  pull_request:
    branches: [main]

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3

      - name: Setup Node.js
        uses: actions/setup-node@v3
        with:
          node-version: '18'

      - name: Install dependencies
        run: npm ci

      - name: Run tests
        run: npm test

      - name: Run E2E tests
        run: npm run test:e2e

      - name: Check code coverage
        run: npm run test:cov

  deploy:
    needs: test
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main'
    steps:
      - name: Deploy to production
        run: |
          docker build -t comet-pipeline .
          docker push registry.example.com/comet-pipeline:latest

Security Implementation

Role-Based Access Control (RBAC)

// Guards for route protection
@Injectable()
export class RolesGuard implements CanActivate {
  constructor(private reflector: Reflector) {}

  canActivate(context: ExecutionContext): boolean {
    const requiredRoles = this.reflector.getAllAndOverride<Role[]>('roles', [
      context.getHandler(),
      context.getClass(),
    ])

    if (!requiredRoles) {
      return true
    }

    const { user } = context.switchToHttp().getRequest()
    return requiredRoles.some((role) => user.roles?.includes(role))
  }
}

// Usage in controllers
@Controller('projects')
export class ProjectController {
  @Post()
  @Roles(Role.ADMIN, Role.PROJECT_MANAGER)
  @UseGuards(RolesGuard)
  create(@Body() dto: CreateProjectDto) {
    return this.projectService.createProject(dto)
  }
}

Data Encryption

• Sensitive Data: Encrypted at rest using AES-256
• Passwords: Bcrypt hashing with salt rounds
• API Keys: Secure storage in environment variables
• SSL/TLS: HTTPS-only communication

Reporting & Analytics

Custom Reports

• Project Progress Reports: Visual progress tracking
• Team Performance: Individual and team metrics
• Resource Utilization: Resource allocation analytics
• Time Tracking: Detailed time logs and reports

Dashboard Analytics

// Analytics service
@Injectable()
export class AnalyticsService {
  async getProjectMetrics(projectId: string): Promise<ProjectMetrics> {
    const [
      totalTasks,
      completedTasks,
      overdueTasks,
      teamProductivity,
    ] = await Promise.all([
      this.taskRepo.count({ where: { projectId } }),
      this.taskRepo.count({
        where: { projectId, status: TaskStatus.DONE }
      }),
      this.taskRepo.count({
        where: {
          projectId,
          dueDate: LessThan(new Date()),
          status: Not(TaskStatus.DONE),
        }
      }),
      this.calculateTeamProductivity(projectId),
    ])

    return {
      totalTasks,
      completedTasks,
      overdueTasks,
      completionRate: (completedTasks / totalTasks) * 100,
      teamProductivity,
    }
  }
}

Challenges & Solutions

Challenge 1: Team Coordination

Problem: Coordinating 5 developers with varying skill levels and ensuring consistent code quality.

Solution: Implemented pair programming, code reviews, and established coding standards with ESLint and Prettier configurations.

Challenge 2: Complex State Management

Problem: Managing complex state across multiple components and real-time updates.

Solution: Implemented Redux Toolkit for state management and WebSocket for real-time synchronization.

Challenge 3: Performance at Scale

Problem: Application slowdown with large datasets and concurrent users.

Solution: Implemented database indexing, Redis caching, and pagination for large datasets.

Impact & Results

• ✅ Efficiency Improvement: 20% increase in development efficiency
• ✅ Team Performance: Successful coordination of 5-person team
• ✅ Code Quality: Maintained 95% test coverage
• ✅ On-Time Delivery: Project delivered on schedule
• ✅ Client Satisfaction: Exceeded client expectations

Technologies Used

Backend

• NestJS
• TypeScript
• PostgreSQL
• Prisma ORM
• Redis
• WebSocket

Frontend

• Next.js 15
• TypeScript
• Tailwind CSS
• Redux Toolkit
• React Query

DevOps

• Docker
• GitHub Actions
• Nginx
• PM2

Team Structure

• Team Lead: Architecture design and team coordination
• 2 Frontend Developers: UI/UX implementation
• 2 Backend Developers: API and database development
• DevOps: CI/CD and infrastructure management

Lessons Learned

1. Effective Leadership: Clear communication and delegation are key to team success
2. Code Reviews: Regular code reviews improve code quality and knowledge sharing
3. Agile Practices: Sprint planning and daily standups keep the team aligned
4. Documentation: Comprehensive documentation reduces onboarding time

Conclusion

Comet Project Pipeline demonstrates my leadership capabilities and technical expertise in managing complex enterprise projects. This experience showcases my ability to lead teams, implement best practices, and deliver high-quality solutions that exceed client expectations.

As Team Lead, I successfully managed a 5-person team and delivered a comprehensive project management system for PT Koperasi Metropolitan, achieving a 20% improvement in development efficiency.