Job Transition & First 90 Days

First 90 Days Ramp-Up Guide

Landing the offer is step one; succeeding in your new engineering environment is step two. Follow this battle-tested 30-60-90 day milestone roadmap to build momentum, minimize imposter syndrome, and ship impactful code.

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1

Days 1 – 30: Absorb, Configure & Ship First PR

Goal: Eliminate environment friction, build trust, and deliver low-risk quick wins.

Phase: Ramp-Up
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Clone Main Repo & Run Local Test Suite

Set up local dev environment, Docker containers, secrets (.env.local), and pass all unit tests without errors.

setup
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Ship First Good-First-Issue or Docs PR

Tackle a low-risk bug or outdated readme to familiarize yourself with CI/CD, staging deployments, and team branch strategies.

delivery
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Schedule 15-Minute Intros with Cross-Functional Teammates

Meet your product manager, QA partner, designer, and engineering teammates to understand their workflows and pain points.

team
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Establish Weekly 1-on-1 Cadence with Manager

Agree on meeting timing, shared agenda format, and explicit performance criteria for your first 90 days.

manager
2

Days 31 – 60: Deliver & Collaborate Autonomously

Goal: Own sprint tickets end-to-end, provide constructive code reviews, and learn incident mitigation.

Phase: Autonomy
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Deliver First Non-Trivial Feature End-to-End

Break down a multi-day sprint story, design the solution, write automated tests, and coordinate rollout behind a feature flag.

delivery
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Actively Review Peer Pull Requests

Review at least 3 peer PRs per week, asking thoughtful clarifying questions on architecture, test edge cases, and maintainability.

collaboration
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Shadow an On-Call Incident or Support Rotation

Observe telemetry dashboards (Datadog/Grafana), bug triage queues, and blameless incident mitigation.

reliability
3

Days 61 – 90: Own, Influence & Align for Promotion

Goal: Establish component ownership, pitch developer ergonomics improvements, and conduct quarterly review.

Phase: Ownership
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Establish Ownership of a Service or Sub-system

Become the primary go-to engineer for a feature area, refining technical debt and documenting operational runbooks.

ownership
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Propose an Architectural or Workflow Improvement

Identify developer friction (e.g. flaky tests, slow build times, or missing telemetry) and pitch a pragmatic refactor.

influence
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Conduct 90-Day Alignment & Growth Review with Manager

Review milestone goals achieved, calibrate strengths and growth areas, and outline next 6-month promotion/growth roadmap.

career