What You ll DoWe are looking for a skilled Sr Software Engineer with expertise in .NET Core API integration to build, maintain, and enhance scalable web applications. You will collaborate with cross-functional teams to develop high-quality software solutions, ensuring performance, security, and maintainability.

You will:

- Analyze, understand, and map complex, heterogeneous third-party APIs into normalized data models.
- Design and build connectors/integrations for SaaS platforms, field-specific APIs, and proprietary vendor APIs.
- Develop and maintain data transformation and normalization pipelines that abstract away vendor-specific differences.
- Handle authentication and authorization flows across diverse providers (OAuth2, API keys, SAML, custom flows).
- Build resilient integration patterns that gracefully handle API inconsistencies, rate limits, and error behaviors.
- Collaborate with product teams to design consistent, unified API schemas that scale across multiple providers.
- Establish solid testing, monitoring, and logging frameworks for integration reliability.
- Mentor and guide engineers in best practices for integration architecture and abstraction design.
What You Bring

We are seeking someone who is experienced in API-first engineering and is comfortable working with complex data structures, integrations,



and scalable system design.

Must Haves

4+ years of backend engineering experience, with significant time spent in API-heavy environments.
Proven ability to reverse-engineer poorly documented APIs, understand complex JSON/XML payloads, and resolve mapping challenges.
Deep experience with API normalization, data modeling, and abstraction design.
Expertise with REST, GraphQL, and event-driven integrations.
Strong knowledge of integration middleware, API gateways, and webhooks.
Familiarity with async processing, queuing systems, and retry strategies.
Excellent problem-solving skills in handling edge cases, non-standard implementations, and schema drift.

Nice to Have

Experience working at or integrating with unified API platforms.
Familiarity with domain-specific APIs (e.g., PRISM, HRIS, ATS, CRM, Healthcare APIs).
Knowledge of schema evolution strategies, versioning, and API governance.
Background in ETL/data pipelines or interoperability standards (e.g., OpenAPI, JSON Schema).

Disclaimer : This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.

📌 Sr. Software Engineer (Dot Net Core & API Integration) (Delhi)
🏢 ThrivePass
📍 Delhi