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How to Stay Connected with Old Colleagues After Leaving

Posted on October 08, 2025
Michael Brown
Career & Resume Expert
Michael Brown
Career & Resume Expert

How to Stay Connected with Old Colleagues After Leaving

Leaving a job can feel like closing a chapter, but the people you worked with are still part of your professional story. Staying connected with old colleagues after leaving helps you tap into hidden job markets, gain referrals, and keep your industry knowledge fresh. In this guide we’ll walk through why it matters, the exact steps to take before you walk out the door, digital tools (including Resumly’s networking co‑pilot), etiquette checklists, and a 30‑day action plan. By the end you’ll have a concrete roadmap to turn former teammates into lifelong allies.


Why Maintaining Relationships Matters

  1. Referral power – According to a LinkedIn study, 85% of jobs are filled via networking. Your ex‑colleagues are often the first to think of you when a role opens.
  2. Industry intel – Former teammates stay in the same market, giving you early warnings about trends, layoffs, or new opportunities.
  3. Skill endorsement – A quick LinkedIn recommendation from a past manager can boost your profile’s credibility.
  4. Emotional support – Career transitions are stressful; familiar faces provide encouragement and perspective.

Bottom line: Staying connected with old colleagues after leaving is not a nicety; it’s a strategic career move.


1. Prepare Before Your Last Day

1.1 Update Your Contact List

  • Export the company directory or copy email addresses into a spreadsheet.
  • Add LinkedIn URLs next to each name.
  • Note any personal details (e.g., favorite coffee shop, recent project) for future conversation starters.

1.2 Craft a Thoughtful Goodbye Message

Your farewell email should be concise, appreciative, and include a clear call‑to‑action to stay in touch.

Subject: Thank You & Staying in Touch

Hi [Name],

I wanted to let you know that my last day at [Company] is [Date]. Working with you on the XYZ project has been a highlight of my career. I’d love to keep our conversation going—please feel free to connect on LinkedIn or drop me a line at [personal email].

Thanks for everything, and let’s stay in touch!

Best,
[Your Name]

1.3 Optimize Your LinkedIn Profile

  • Add a new headline that reflects your next career move.
  • Update the “Experience” section with your latest role.
  • Turn on the “Open to Work” badge if you’re job‑searching.
  • Tip: Use Resumly’s AI Resume Builder to generate a polished summary that aligns with your LinkedIn headline. Learn more at https://www.resumly.ai/features/ai-resume-builder.

2. Digital Tools for Ongoing Connection

2.1 LinkedIn – The Core Platform

  • Connect: Send a personalized invitation (don’t use the default message).
  • Engage: Like, comment, or share posts that are relevant to your former teammate’s expertise.
  • Message: Use short, value‑focused messages rather than generic “Hey, what’s up?”

2.2 Resumly’s Networking Co‑Pilot

Resumly offers a Networking Co‑Pilot that suggests conversation topics, tracks interaction frequency, and even drafts outreach emails. It integrates with your LinkedIn contacts and can be accessed here: https://www.resumly.ai/networking-co-pilot.

2.3 Email Scheduling Tools

Tools like Boomerang or Gmail’s “Schedule Send” let you set reminders to follow up after a month, quarter, or year. Consistency beats randomness.

2.4 Collaborative Platforms

If you shared a Slack channel or Microsoft Teams group, stay subscribed to relevant channels. Many companies keep public channels open after you leave.


3. The Art of the Follow‑Up Message

3.1 The 3‑Touch Framework

Touch Timing Content
Touch 1 Within 1 week of departure Thank‑you note + LinkedIn invite
Touch 2 30‑45 days later Share an article or congratulate a recent achievement
Touch 3 90 days later Ask a brief, specific question (e.g., “Do you know of any openings in X?”)

3.2 Do’s and Don’ts Checklist

Do:

  • Personalize each message.
  • Offer something of value (insight, article, introduction).
  • Keep it brief – under 150 words.

Don’t:

  • Spam with sales pitches.
  • Ask for favors before establishing reciprocity.
  • Use overly formal language that feels robotic.

4. Creating Mutual Value

4.1 Share Knowledge

If you read a report that aligns with a former colleague’s project, forward it with a note: “Thought you might find this useful for the XYZ initiative.”

4.2 Offer Introductions

Introduce a contact who could help your ex‑colleague. This “pay‑it‑forward” gesture cements the relationship.

4.3 Celebrate Milestones

Congratulate promotions, work anniversaries, or published articles. A simple “Congrats on the new role!” goes a long way.


5. Step‑by‑Step 30‑Day Re‑Engagement Plan

  1. Day 1‑7: Send goodbye email and LinkedIn invitations.
  2. Day 8‑14: Update LinkedIn headline using Resumly’s AI Cover Letter tool for a compelling summary – https://www.resumly.ai/features/ai-cover-letter.
  3. Day 15‑21: Share a relevant industry article with at least three contacts.
  4. Day 22‑30: Use the Networking Co‑Pilot to draft a personalized check‑in email to each contact, referencing a recent project you collaborated on.
  5. End of Month: Review interaction metrics in the Co‑Pilot dashboard; schedule next month’s touchpoints.

6. Real‑World Case Study: Maya’s Success Story

Maya left a mid‑size SaaS firm after 4 years. She followed the framework above and used Resumly’s Job‑Match feature to identify roles that aligned with her skill set (https://www.resumly.ai/features/job-match). Within three months she received two referral interviews from former teammates, landed a senior product manager role, and now mentors new hires at her former company. Her secret? Consistent, value‑first communication and leveraging Resumly’s tools to stay visible.


7. Frequently Asked Questions (FAQs)

Q1: How often should I reach out to former colleagues? A: Aim for a light touch every 1‑3 months. Quality beats frequency.

Q2: Is it okay to ask for a job referral right after I leave? A: Not immediately. Build rapport first; ask for advice, then transition to referrals after a few meaningful exchanges.

Q3: What if I don’t have a LinkedIn account? A: Email and a professional networking platform (e.g., Resumly’s Networking Co‑Pilot) are viable alternatives.

Q4: How can I keep track of many contacts? A: Use a simple spreadsheet or Resumly’s Co‑Pilot, which logs last contact dates and suggests next steps.

Q5: Should I share my new employer’s name? A: Yes, if you’re comfortable. Transparency builds trust and can open doors for future collaborations.

Q6: What if a former boss is unresponsive? A: Respect their time. Send a polite follow‑up after two weeks; if still silent, move on and focus on other contacts.

Q7: Can I use Resumly’s free tools to improve my outreach? A: Absolutely. The ATS Resume Checker (https://www.resumly.ai/ats-resume-checker) ensures your attached resume passes automated screens before you share it.

Q8: How do I measure the ROI of staying connected? A: Track metrics such as referral offers, interview invitations, and informational interview requests. Over a year, many professionals see a 20‑30% increase in job opportunities.


8. Mini‑Conclusion: The Power of Connection

Every interaction with an old colleague is an investment in your career capital. By following the steps above, you turn casual acquaintances into strategic allies. Staying connected with old colleagues after leaving is a habit that pays dividends in referrals, industry insight, and personal growth.


9. Ready to Supercharge Your Network?

Resumly’s suite of AI‑driven tools makes it easy to keep your professional brand sharp while you nurture relationships. Explore the AI Resume Builder, Networking Co‑Pilot, and Job Search features to stay ahead of the curve:

Start today, and watch your network turn into a lifelong career engine.

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