Application Guide

How to Apply for Contractor, Expanding Reminders through WhatsApp

at Notify Health

🏢 About Notify Health

Notify Health is a nonprofit focused on increasing childhood vaccination coverage through innovative reminder systems. Their mission-driven work in Nigeria directly impacts public health outcomes, making it a compelling place for those who want to use technology for social good.

About This Role

This contract role involves building a prototype to send vaccination reminders via WhatsApp, testing delivery rates, and collaborating on phone surveys. Your work will help scale a cost-effective solution to reach more families in Nigeria, potentially saving lives.

💡 A Day in the Life

You might start your day checking WhatsApp API logs and debugging failed messages, then run a small batch test with randomized phone numbers. Afternoon could involve analyzing delivery rates and coordinating with the survey team to align on phone call timing. You'd end the day documenting findings and planning the next iteration.

🎯 Who Notify Health Is Looking For

  • Proven experience with WhatsApp Business API or similar messaging APIs (e.g., Twilio) for building notification systems.
  • Hands-on with prototyping and small-scale testing, including A/B testing and data analysis (e.g., Python, R, or Excel).
  • Comfortable with randomized sampling and working with phone number lists, including handling edge cases like invalid numbers.
  • Strong collaborator who can work remotely with a small team and coordinate survey logistics.

📝 Tips for Applying to Notify Health

1

Highlight any past projects where you built a messaging prototype (e.g., SMS, WhatsApp) and mention specific tools used (e.g., Twilio, WhatsApp Cloud API).

2

Show understanding of Nigeria's mobile landscape: mention challenges like network variability, feature phones vs. smartphones, and WhatsApp penetration.

3

Quantify your testing experience: include sample sizes, success rates, or how you measured delivery rates in previous roles.

4

Explain your approach to handling data privacy and consent when sending messages to phone numbers.

5

Tailor your resume to emphasize contract or project-based work, showing you can deliver results in a short timeframe.

✉️ What to Emphasize in Your Cover Letter

['Your passion for using technology to improve public health, especially in low-resource settings.', 'Specific experience with WhatsApp API and prototype testing, including any lessons learned from past messaging projects.', 'Your ability to work independently and collaboratively on a remote team, with examples of past remote work.', 'Understanding of the importance of vaccination reminders in Nigeria and how your work can contribute to higher coverage rates.']

Generate Cover Letter →

🔍 Research Before Applying

To stand out, make sure you've researched:

  • Read Notify Health's website and any published case studies on their SMS reminder programs.
  • Research WhatsApp penetration and usage patterns in Nigeria (e.g., Pew Research, GSMA reports).
  • Learn about Nigeria's childhood vaccination schedule and current coverage challenges (e.g., from WHO or UNICEF).
  • Explore the WhatsApp Business API documentation, especially features like message templates and opt-in requirements.
Visit Notify Health's Website →

💬 Prepare for These Interview Topics

Based on this role, you may be asked about:

1 How would you design a small-scale test to measure WhatsApp message delivery rates in Nigeria?
2 Describe a time you had to troubleshoot a messaging API issue (e.g., rate limits, message failures).
3 How do you ensure data quality when working with phone number lists (e.g., validating numbers, handling missing prefixes)?
4 What metrics would you track to evaluate the success of the prototype?
5 How would you collaborate with a survey team to integrate reminder delivery with survey calls?
Practice Interview Questions →

⚠️ Common Mistakes to Avoid

  • Submitting a generic cover letter that doesn't mention WhatsApp or Nigeria specifically.
  • Overlooking the contract nature: emphasize your ability to deliver a prototype quickly, not long-term plans.
  • Ignoring data privacy: failing to address consent and compliance with local regulations (e.g., NDPR).

📅 Application Timeline

This position is open until filled. However, we recommend applying as soon as possible as roles at mission-driven organizations tend to fill quickly.

Typical hiring timeline:

1

Application Review

1-2 weeks

2

Initial Screening

Phone call or written assessment

3

Interviews

1-2 rounds, usually virtual

Offer

Congratulations!

Ready to Apply?

Good luck with your application to Notify Health!