trax/docs/reports/04-team-structure.md

7.1 KiB

Checkpoint 4: Team Structure Report

Team Structure for Iterative Media Processing Development

1. Phase-Based Team Evolution

Phase 1 (Weeks 1-2): Minimal Team

Just 2 people:
├── Backend Python Developer (You or Lead)
│   └── Build v1 basic transcription
└── DevOps/Infrastructure Support (Part-time)
    └── PostgreSQL, uv setup, testing

Phase 2 (Week 3): Add Enhancement

+1 person:
└── AI Integration Developer
    └── DeepSeek enhancement integration

Phase 3 (Weeks 4-5): Add Multi-pass

+1 person:
└── ML Engineer/Researcher
    └── Multi-pass strategies, confidence scoring

Phase 4 (Week 6+): Add Diarization

+1 person:
└── Audio/Speech Specialist
    └── Speaker diarization, voice embeddings

2. Core Roles Detailed

Backend Python Developer (Lead)

  • When: From Day 1
  • Focus: Architecture, protocols, iteration management
  • Responsibilities:
    • Design protocol-based architecture
    • Build v1 basic pipeline
    • Manage version transitions
    • Ensure backward compatibility
    • Code review all iterations
    • Implement batch processing system
  • Skills: Deep Python, PostgreSQL, clean architecture, Whisper/ML experience

AI Integration Developer

  • When: Phase 2 (Week 3)
  • Focus: AI enhancement layer
  • Responsibilities:
    • Integrate DeepSeek/other AI services
    • Design enhancement prompts
    • Handle structured outputs
    • Manage AI costs/quotas
    • Implement retry logic
  • Skills: API integration, prompt engineering, JSON schemas

ML Engineer/Researcher

  • When: Phase 3 (Week 4)
  • Focus: Accuracy improvements
  • Responsibilities:
    • Design multi-pass strategies
    • Implement confidence scoring
    • Research optimal parameters
    • Benchmark accuracy improvements
    • Optimize model performance
  • Skills: Whisper models, statistics, Python, ML optimization

Audio/Speech Specialist

  • When: Phase 4 (Week 6)
  • Focus: Speaker separation
  • Responsibilities:
    • Implement diarization algorithms
    • Voice embedding systems
    • Speaker clustering
    • Audio preprocessing for diarization
  • Skills: pyannote, speech processing, audio analysis

3. Support Roles (As Needed)

DevOps/Infrastructure (Part-time from Day 1)

  • PostgreSQL optimization
  • CI/CD pipeline setup
  • Monitoring and logging
  • Backup strategies
  • Performance monitoring

QA/Test Engineer (Part-time from Phase 2)

  • Test data preparation
  • Accuracy benchmarking
  • Regression testing
  • Performance testing
  • Real file test management

Technical Writer (Part-time from Phase 3)

  • API documentation
  • Rule files maintenance
  • User guides
  • Architecture documentation
  • Change logs

4. Communication Structure for Iterations

Phase 1: Direct communication (2 people)
Phase 2: Daily standup starts (3 people)
Phase 3: Weekly architecture review (4 people)
Phase 4: Formal sprint planning (5+ people)

Decision Making by Phase

Phase Decision Owner Review Required Communication
1 Backend Lead You Direct
2 Backend Lead You + AI Dev Daily sync
3 Backend Lead Team consensus Weekly review
4 You Architecture team Sprint planning

5. Work Distribution Strategy

Phase 1 Sprint (Weeks 1-2)

Backend Lead:
- Database schema design
- Basic Whisper integration
- Batch processing system
- JSON/TXT export
- CLI implementation

DevOps:
- PostgreSQL setup
- Test environment
- CI/CD basics

Phase 2 Sprint (Week 3)

Backend Lead:
- Version management system
- Pipeline orchestrator
- Backward compatibility

AI Developer:
- DeepSeek integration
- Enhancement templates
- Error handling
- Prompt optimization

Phase 3 Sprint (Weeks 4-5)

Backend Lead:
- Refactoring for multi-pass
- Version compatibility
- Performance optimization

AI Developer:
- Enhance prompt optimization
- Cost management

ML Engineer:
- Multi-pass implementation
- Confidence algorithms
- Segment merging
- Parameter tuning

Phase 4 Sprint (Week 6+)

All roles contributing:
- Backend: Integration
- AI: Speaker prompts
- ML: Voice embeddings
- Audio: Diarization

6. Skill Requirements by Phase

Phase 1 (Must Have)

  • Python 3.11+
  • PostgreSQL + SQLAlchemy
  • Basic Whisper knowledge
  • pytest + real file testing
  • Async Python

Phase 2 (Add)

  • API integration
  • Prompt engineering
  • Async error handling
  • JSON schema validation

Phase 3 (Add)

  • ML/statistics
  • Model optimization
  • Performance profiling
  • Confidence scoring

Phase 4 (Add)

  • Speech processing
  • Audio analysis
  • Clustering algorithms
  • Voice biometrics

7. Team Scaling Triggers

When to Add Next Person

  • Phase 1 → 2: When v1 is stable and tested
  • Phase 2 → 3: When enhancement is working reliably
  • Phase 3 → 4: When multi-pass shows value
  • Scale beyond: When batch processing needs optimization

Scaling Indicators

  • Processing backlog > 100 files
  • Response time > SLA
  • Feature requests accumulating
  • Technical debt growing

8. Risk Mitigation

Single Points of Failure

  • Backend Lead in Phase 1-2: Document everything, pair programming
  • AI API keys: Multiple service support, fallback options
  • PostgreSQL: Regular backups, replication setup
  • Domain knowledge: Cross-training between phases

Knowledge Transfer

  • Pair programming during transitions
  • Comprehensive documentation
  • Code reviews for learning
  • Recorded architecture decisions
  • Weekly knowledge sharing sessions

9. Remote vs Co-located Considerations

Remote Team Benefits

  • Access to global talent
  • Async work enables 24/7 progress
  • Lower costs
  • Written communication creates documentation

Remote Team Challenges

  • Communication delays
  • Time zone coordination
  • Pair programming harder
  • Onboarding complexity
  • Core team co-located or same timezone
  • Support roles can be remote
  • Clear async communication protocols
  • Regular video architecture reviews

10. Performance Metrics by Role

Backend Developer

  • Code coverage > 80%
  • PR review time < 24h
  • Bug rate < 5%
  • Documentation completeness

AI Integration Developer

  • API error rate < 1%
  • Enhancement accuracy > 99%
  • Cost per transcript < $0.01
  • Prompt iteration speed

ML Engineer

  • Model accuracy improvements
  • Processing time reduction
  • Confidence score reliability
  • Research output quality

Audio Specialist

  • Speaker identification accuracy > 90%
  • Diarization error rate < 10%
  • Processing speed targets
  • Voice quality metrics

Summary

The team structure emphasizes:

  1. Gradual growth aligned with iterative development
  2. Clear role boundaries with defined responsibilities
  3. Phase-based scaling to avoid premature complexity
  4. Knowledge transfer built into the process
  5. Metrics-driven performance evaluation

This approach ensures the team grows with the product, maintaining efficiency while adding capabilities.


Generated: 2024
Status: COMPLETE
Next: Technical Migration Report