Developer Handoff & Onboarding
How to onboard developers properly, what documentation they need, and how to set them up for success from day one.
Why Proper Onboarding Matters
Bad onboarding = wasted weeks + frustrated developer + poor code
Good onboarding = productive from day 1 + happy developer + quality work
A developer who spends 2 days confused about access is 2 days behind schedule and already demoralized.
Pre-Day-One Checklist
Prepare BEFORE their first day:
Access & Tools Setup
- Code Repository Access
- GitHub/GitLab/Bitbucket account added
- Permissions set (read vs write vs admin)
- Send invite 2-3 days before start date
- Communication Tools
- Slack/Discord/Teams invite
- Email address (if applicable)
- Project management tool (Jira/Trello/Asana)
- Development Environment
- API keys and credentials
- Database access
- Staging/development server access
- Design files (Figma/Sketch links)
- Documentation
- README with setup instructions
- Architecture diagrams (if available)
- Coding standards/style guide
- Environment variables template (.env.example)
What to Share Before They Start
Send 2-3 days before start date:
- Project overview (what are we building, why, for whom)
- Current state (what's built, what's left, what's broken)
- Timeline and milestones
- Tech stack overview
- Links to all tools/repos
- Contact info (yours, team members, previous dev if applicable)
Day One: Orientation
First Call (1-2 hours)
- Introductions
- Who's who on the team
- Your role, their role
- Project Walkthrough
- Demo the current state (show, don't just tell)
- Walk through key features
- Show what's NOT working
- Code Tour
- Repository structure
- Key files/folders
- Where to start looking
- First Task Assignment
- Start small: bug fix or minor feature
- Should take 1-3 days max
- Tests their setup and gives early win
Set Expectations
- Working Hours: What hours/days do you expect availability?
- Communication: Daily updates? Weekly? Ad-hoc?
- Meetings: Standups, check-ins, demos
- Code Review: Who reviews? What's the process?
- Questions: How should they reach you? Response time expectations?
First Week Goals
What They Should Accomplish
- Day 1-2: Environment setup, code running locally
- Day 3-4: First small task completed
- Day 5: First code review/merge, understand workflow
- By End of Week: Comfortable with codebase, asking good questions
What You Should Accomplish
- Evaluate their communication style
- Assess their problem-solving (do they ask questions or disappear?)
- See their code quality firsthand
- Identify any gaps in skills/knowledge
Week 1 is a trial period - both sides are evaluating fit.
Documentation to Provide
Minimum Viable Documentation
You don't need 50 pages. You need:
- Setup Guide (README.md)
- How to install dependencies
- How to run locally
- How to run tests
- Common errors and fixes
- Architecture Overview
- What talks to what (diagram or bullet list)
- Data flow (user action β backend β database)
- External services/APIs used
- Deployment Process
- How to deploy to staging
- How to deploy to production
- Who has access to what
- Coding Standards
- Code style (linting rules)
- Git workflow (branch naming, commit messages)
- Pull request template
Don't Have Documentation?
Create it WITH your new developer:
- Ask them to document setup as they go
- First PR: Add README with setup steps
- Benefits: You get docs + they learn faster by documenting
Communication Protocols
Daily Updates (Async)
Template for daily update:
- Yesterday: What I completed
- Today: What I'm working on
- Blockers: Anything stopping me
Takes 2 minutes, prevents surprises
Weekly Check-Ins (Sync)
30-minute call to:
- Review progress vs plan
- Demo completed work
- Discuss upcoming tasks
- Address any issues/concerns
When Things Go Wrong
Set the expectation early:
"If you're stuck for more than 2 hours, message me. If you're going to miss a deadline, tell me as soon as you know - not the day it's due."
Code Handoff (If Taking Over from Another Dev)
Get a Handoff Session
If possible, have 1-2 hour call with previous developer:
- Walk through architecture
- Explain weird code decisions ("Here's why I did it this way...")
- Point out known issues/tech debt
- Share tribal knowledge not in docs
What to Ask Previous Developer
- "What would you do differently if you started over?"
- "What's the most fragile part of the codebase?"
- "Are there any hidden dependencies or gotchas?"
- "What should I know that's not in the docs?"
If Previous Dev Is Unavailable
Budget extra time:
- New dev needs to reverse-engineer decisions
- Add 20-30% to timeline estimates
- Expect questions about "why was this built this way?"
Common Onboarding Mistakes
What NOT to Do
- π© No documentation: "Just look at the code"
- Result: Wastes hours figuring out basics
- π© Throwing them in the deep end: "Build this complex feature on Day 1"
- Result: Poor code quality, missed edge cases
- π© Missing access/credentials: "Oh, I'll send that later"
- Result: Developer sits idle, billable hours wasted
- π© No clear first task: "Just get familiar with the code"
- Result: No way to evaluate their work
- π© Unclear expectations: "We'll figure it out as we go"
- Result: Mismatched expectations, frustration
The First Month: What to Watch For
Good Signs
- β Asks questions when stuck
- β Proactively communicates progress/issues
- β Code quality matches expectations
- β Delivers on small tasks reliably
- β Follows established patterns in codebase
- β Documents as they go
Warning Signs
- π© Disappears for days without updates
- π© Consistently misses estimates by 2-3x
- π© Doesn't ask questions even when clearly stuck
- π© Ignores feedback/code review comments
- π© Code has lots of bugs or doesn't match requirements
- π© Defensive when receiving feedback
If you see warning signs in Week 1-2, address them immediately. By Week 4, patterns are set.
Onboarding Checklist Template
Pre-Start (2-3 days before)
- β Send welcome email with project overview
- β Grant all access (GitHub, Slack, PM tools)
- β Share documentation/design files
- β Prepare first task assignment
Day 1
- β Intro call (team, project, expectations)
- β Verify all access working
- β Walkthrough of codebase
- β Assign first small task
Week 1
- β Daily check-ins (can be async)
- β First code review by end of week
- β Address any setup/access issues
- β Friday: Evaluate fit and discuss Week 2 plan
End of Month 1
- β Formal check-in: How's it going?
- β Evaluate quality of work
- β Decide: Continue, adjust, or part ways
Key Takeaways
- Prepare Before Day One: Grant access, share docs, prepare first task 2-3 days before start
- Start Small: First task should be 1-3 day bug fix or minor feature for early win
- Minimum Docs Needed: Setup guide, architecture overview, deployment process, coding standards
- Set Communication Expectations: Daily async updates + weekly sync calls prevent surprises
- Week 1 Is a Trial: Watch for red flags early - patterns set in first month are hard to change