About the role
Company website: https://puffintech.io/
We're hiring a Senior Integration Engineer to build and maintain connectors with identity verification, authentication, and IAM platforms. You'll own integrations end-to-end : from reading vendor API docs to shipping production code that handles PII safely and reliably.
What you'll do
- Design and build Node.js integrations with third-party identity verification and authentication providers.
- Implement OAuth 2.0 / OIDC / SAML / SCIM flows and webhook receivers
- Handle token lifecycle, retries, rate limits, and schema drift across vendor APIs.
- Build audit trails and reconciliation logic for verification events
- Collaborate with product and security to ship compliant, observable integrations.
Must-have
- 5+ years building production systems in Node.js + TypeScript. - Strong grasp of REST / HTTP: auth flows, pagination, retries with exponential backoff, idempotency, webhook signature verification (HMAC).
- Hands-on with identity protocols - OIDC, OAuth 2.0 (all grant types), SAML 2.0, SCIM 2.0.
- Experience integrating with identity verification or IAM platforms (e.g., Okta, Auth0, Ping, Jumio, Onfido, Persona, Socure, ForgeRock, Workday, Sailpoint).
- Secure handling of PII and secrets - KMS/Secrets Manager, redaction, no secrets or sensitive data in logs.
- Defensive parsing with Zod / io-ts or equivalent.
- Testing discipline - unit + integration tests, HTTP mocking (nock/msw).
Strong-to-have
- FIDO2 / WebAuthn / passwordless auth exposure.
- Decentralized identity - W3C DIDs, Verifiable Credentials.
- Familiarity with NIST 800-63-3 (IAL/AAL), KYC/AML basics.
- Background job frameworks - BullMQ, SQS, or Kafka.
- Compliance awareness - SOC 2, GDPR, DPDP Act (India), BIPA.
- Observability - structured logging, OpenTelemetry, correlation IDs.
- Docker + one cloud (GCP / AWS / Azure).
Nice-to-have
- Prior work on multi-tenant SaaS connectors or iPaaS platforms.
- Contributions to open-source identity libraries.
Candidate must be located in India.
Incentives:
1. Work from home.
2. Competitive salary.
3. Health Insurance
This job has really good perks including salary and very good professional growth opportunity within the company. Full-time position salary range depends on the professional experience and technical interview performance.
Job Type: Full-time
Pay: From ₹1,700,000.00 per year
Benefits:
- Health insurance
- Paid time off
- Work from home
Application Question(s):
- How soon can you join considering notice period, if selected?
- What is your current pay, how much salary are you expecting?
- Rate your Node.js proficiency on 1-10 scale
- This job requires working in shift 1:30PM - 10:30 PM, are you able to support that?
- Do you any experience making 3rd party APIs calls using Node.js backend?
Education:
Experience:
- Node.js: 5 years (Required)
- Total: 5 years (Required)
- production: 5 years (Required)
Work Location: Remote
