Prove it: two systems, one spec, tested failures
Connect two real systems with free test accounts, for example a form tool and a spreadsheet, or a sandbox payment gateway and a small Laravel app.
- Write a one-page spec: fields mapped, what happens on failure, who gets alerted.
- Build it with Guzzle (or cURL), with timeouts and retries.
- Make the webhook handler idempotent and prove it by sending the same event twice (webhook.site helps you inspect requests).
- Write a README with a sequence diagram and a list of failure cases you tested.
The failure list is what makes this proof stand out.
PHP experience that integration teams look for
| You already do | What it becomes |
|---|---|
| Called payment, SMS or courier APIs | Build integrations as a main job |
| Handled cURL or Guzzle errors | Design retries and timeouts on purpose |
| Fixed duplicate orders from double webhooks | Make handlers idempotent (safe to run twice) |
| Wrote cron jobs to sync data | Plan syncs with logs and alerts |
The new parts are writing an integration spec before coding, reading OpenAPI files, and being comfortable with a second language or an iPaaS (integration platform) tool if a team uses one.
Have you already done integration work?
(Takes about a minute; answers stay on your device.)
- Have you called a payment gateway or SMS API from PHP? (yes / no)
- Have you debugged a webhook that arrived twice or not at all? (yes / no)
- Can you read JSON and HTTP status codes without looking them up? (yes / no)
- Do you write down how things connect, not just code them? (yes / no)
- Would you enjoy being the person who makes two systems agree? (yes / no)
Four or five yeses: this bridge is short for you. Two or three: still reachable. Fewer: start with the php developer role page and come back.
Webhook Retry
A payment webhook is misbehaving. Pick the move at each step.
Webhook Retry
Integration pay: not verified
We haven't verified pay data for api integration engineer roles. Rates differ by city, company and contract type.
Your realistic 90 days
If you have ever fixed a duplicate order from a double webhook, you've already done integration engineering. This move makes it your main job. The plan builds one integration with a written spec and tested failures.
Assumes 2–3 hours a day alongside job applications, a laptop and a phone, and free plans only. Every step has a smaller version and a way to pause. Use them. It runs in three blocks of 30 days, each ending with a signal that you're on track. A signal is not a promise of a job or income.
The two worries we hear most about this move
Is PHP seen as outdated for this? Some teams prefer other languages, but the core skills (HTTP, auth, retries, mapping) are the same. Show one integration in PHP and a second in Node.js or Python. I only know one or two APIs. Is that enough? Depth matters more than count. Explaining how you handled failures in one integration beats a list of ten names.
Other worries, such as age, a career gap, no degree, English, family pressure and savings, are covered on the route page and the role page.
Your first 7 days
| Day | Task | Done when |
|---|---|---|
| 1 | List 5 APIs you've integrated and what went wrong with each | 5 stories |
| 2 | Read the Guzzle quickstart | One request works |
| 3 | Pick two systems with free sandboxes | Accounts made |
| 4 | Write the one-page integration spec | Spec done |
| 5 | Build the happy path | One record syncs |
| 6 | Send a duplicate webhook and handle it | Duplicate skipped |
| 7 | Save 10 integration or API developer postings | 10 links |
Days 1–30: A documented integration
| Step | Time | Done when | Smaller version | If you need to pause |
|---|---|---|---|---|
| Add retries, alerts and a sequence diagram | about 12 hours over 3 weeks | repo + README | Diagram only. | Stop at the end of the step you're on and write two lines about where you stopped. Pick it up from those notes later. |
| Share the repo with 5 developers at SaaS or fintech firms | about 2 hours | 5 messages | Share the repo with 3 developers at SaaS or fintech firms. | Optional. If reaching out feels like too much this week, skip it and put the time into your proof. |
Signal by day 30: Someone reads the README and understands the failure cases.
Days 31–60: A second stack
| Step | Time | Done when | Smaller version | If you need to pause |
|---|---|---|---|---|
| Rebuild the core in Node.js or Python, or in an iPaaS free tier | about 10 hours | second version | One endpoint. | Save or commit what works now and stop adding. A finished small version beats an unfinished big one. |
| Apply to 8 integration, API or backend roles | about 4 hours | 8 logged | Apply to 4 integration, API or backend roles. | Stop sending for now. Keep a list of who you've contacted so you can follow up later without doubling up. |
Signal by day 60: A screening call for an integration or backend role.
Days 61–90: Design conversations
| Step | Time | Done when | Smaller version | If you need to pause |
|---|---|---|---|---|
| Practise drawing 3 integration designs aloud | about 3 hours | 3 designs | 1 design. | Optional. Skip it if the week is full; nothing later depends on it. |
| Ask 2 former colleagues for referrals | about 1 hour | 2 asks | Just one instead of 2. | Optional. If reaching out feels like too much this week, skip it and put the time into your proof. |
Signal by day 90: A system-design round about integrations.
One search that fits your background
The full set of search strings for this move is on the route page. They work on LinkedIn, Naukri and foundit; Instahyre and Cutshort are worth a weekly look too. Add your old job title to any of them with AND, so recruiters who want both skills find you first.
Job-hunt moves that matter for this route
- Search 'integration engineer', 'API developer', 'integration developer' and 'middleware developer'.
- Fintech, logistics and SaaS firms list many; IT services firms hire for client integrations.
- Mention named APIs you've integrated (payment, SMS, courier) in your headline.
Your 30/60/90 quests
XP: learning 20 · proof 60 · outreach 40. Ranks: Wayfinder → Builder → Pathmaker. Progress stays in your browser only.
PHP developers' integration questions
Do I have to leave PHP? Not always. Some integration roles accept PHP; many prefer Node.js, Python or Java too. A second language widens options. What about MuleSoft or Boomi? Those are integration platforms. If listings near you ask for them, see the MuleSoft route.
Integration-job warning signs
Be careful with "test tasks" that are really unpaid client work, recruiters asking for fees, or anyone asking for OTPs or UPI PINs. Use official domains only. Report: cybercrime.gov.in / 1930 (India), ReportFraud.ftc.gov (US).
Next: route page · PHP Developer role page · Quiz
Quick quiz: does this path fit?
Answer each, then press Check. Every answer explains itself.
Make your Path Card
A shareable reminder of where you're heading. The day count starts the first time you open this page; quest XP comes from your log above.
Scam check before you apply anywhere
- Real job and gig platforms are free to join. Never pay a "joining" or "training" fee.
- Never share an OTP or UPI PIN — no genuine employer needs them.
- Use official domains only; type the address yourself.
- India: report at cybercrime.gov.in or call 1930.
- US: report at ReportFraud.ftc.gov.
Small steps, every day.
Each quest has a smaller version for hard weeks, and a pause button. Nothing is lost.
Keep exploring
Sources
Checked 25 Oct 2026. We opened every link below ourselves. Search volumes on this site come from OpenSEO keyword research (Oct 2026).
| What we checked | Where |
|---|---|
| Webhook.site (test endpoint) | webhook.site |
| OpenAPI Specification | spec.openapis.org |
| PHP cURL manual | php.net |
| Guzzle documentation | docs.guzzlephp.org |