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Back End Developer Mobile App
Budget CaddieIndia, India30+ days ago
Job descriptionBuild REST APIs from OpenAPI specs : auth, Plaid link / exchange, webhook (fast 202 +enqueue), transactions list / patch, insights refresh / list. Write SQS workers : Ingestion — Plaid cursor sync, idempotent upserts to Postgres, raw payloads to S3. Insights — Gemini calls with quotas, timeouts, circuit breakers; persist JSON results. Design and evolve Postgres schemas / migrations; implement efficient queries, cursor pagination, and Redis caching for hot reads. Enforce input validation (AJV / Zod), structured logs (pino), and distributed tracing (OpenTelemetry). Add tests (unit / integration), docs (Postman / OpenAPI examples), and runbooks (queue replay, webhook replay). Collaborate tightly with the Platform / Infra engineer to keep security, performance, and cost in check. 5+ years building Node / TypeScript backends with Postgres and a queue (SQS / Rabbit / etc.). Proven experience with secure webhooks (signature / HMAC verification) and third-party APIs. Strong grasp of idempotency, retries / backoff, cursor pagination, error design, and API performance. Comfortable with Docker, GitHub Actions, and observability basics (logs / metrics / traces). Plaid SDK experience; LLM API usage (Gemini / OpenAI); SMS flows (SNS / Twilio). Exposure to Java / Spring or Go (we may introduce JVM / Go for specific future services). Ship real features fast —your endpoints and workers power the core experience. Product influence on data models, API contracts, and user-facing behavior. Growth path to technical leadership with meaningful future upside. Modern tooling (OpenAPI-first, OTel tracing, clean CI / CD) and pragmatic culture. Autonomy with quick decisions and direct access to founders.
Senior Backend Engineer (Node 20
- TypeScript)
Location : Remote
Type : Full-time — Immediate start
About Budget Caddie
We’re building a next-gen personal finance app for Gen Z. Our mission is to transform bank transactions into smart insights and goals users actually act on.
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Back End Developer • India, India
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