Platform Integration Engineer (Meta, TikTok, Google, Zalo)

Benefits

• Social, health and unemployment insurance as required by Vietnamese labour law
• Paid annual leave and public holidays under the Labour Code
• A clear labour contract; salary negotiated on ability and stated in your offer letter
• Work on a stack that runs in production: TypeScript, React, Cloudflare Workers, D1, R2, Queues, Durable Objects
• Use AI every day — Claude, Gemini, Workers AI — in the product and in how we work
• Code ships with automated tests and is reviewed before it reaches production
• Equipment, remote work and bonuses: discussed in detail at interview

What you will do

• Build and maintain OAuth flows, token refresh and permission checks for each platform.
• Develop auto-publishing: images, videos, carousels, scheduling, and linking the published post back to its content card.
• Read metrics from the Meta Graph API, Google Ads, GA4, Search Console and TikTok; handle rate limits and API version changes.
• Process webhooks — Lead Ads, messages, bank transactions — with signature verification and de-duplication.
• Prepare app review submissions for Meta, TikTok and Google with the product team.
• Write tests that simulate third-party API responses so integration bugs never reach production.

What we are looking for

• 2+ years of backend development involving third-party API integrations.
• You understand OAuth 2.0, webhooks, rate limiting, pagination and idempotency.
• TypeScript/JavaScript.
• Patience to read API documentation and handle the cases it does not mention.

Nice to have

• Experience with the Meta Graph API, TikTok API or Google Ads API.
• Experience integrating Shopify, WooCommerce, Haravan or Sapo.

Hours & location

• Working hours: Office hours; your exact schedule is agreed at interview.
• Location: Ho Chi Minh City, Vietnam — the exact office address is sent with your interview invitation.
• Reports to: Engineering Team Lead.

Your application

• Your contact details and a few lines about yourself (required). A CV is optional — if you have one, attach a PDF, DOC, DOCX, JPG or PNG up to 10 MB.
• A link to your GitHub, portfolio or something you have built — one real project says more than a page of CV.
• If you can: measurable results from your work (revenue, customers looked after, campaigns, articles) — add them to your introduction.
• Degrees and certificates (if any) — only needed when you join, no need to send them in advance.
• SOZO never charges candidates any fee and never asks for photos of your ID over social media.

1. Step 1:Apply
2. Step 2:Screening & chat
3. Step 3:Interview
4. Step 4:Offer