Job Title: C#/.NET Integration Developer

Experience:4 to 9 Years

Employment Type: Full Time

Work Location: Bengaluru, India

We re hiring for one of the top IT services companies.

SPADTEK Solutions is proud to collaborate with leading IT organizations to source exceptional talent for their full-time and Contract positions. Client/Implementation Partner is a globally recognized IT services and consulting company, trusted by Fortune 500 clients and enterprises worldwide. With a strong presence across cloud, data engineering, AI, and digital transformation and is known for delivering cutting-edge solutions that drive business growth and innovation.

Working on enterprise-scale projects with global clients. Exposure to next-gen technologies across cloud, data, and digital platforms. A culture that values continuous learning, collaboration, and career growth.

Being part of a company consistently ranked among the top IT employers. If you are an experienced professional seeking a long-term career opportunity with one of the industry s most respected names, this is your chance to join top IT services company through SPADTEK Solutions.

About The Role

You'll join the team building C# connectors on existing .NET framework and integration model each connector composed of two services plus a lightweight API touch-point, integrating with vendor vulnerability-management platforms (Qualys VMDR, Microsoft Defender VM, Rapid7

InsightVM) and writing structured data into PostgreSQL. This is hands-on product development work, not maintenance you'll be extending a live integration model with new vendor connectors.

Roles And Responsibilities

Design and build C# connector services that authenticate against vendor APIs using credentials already captured in UI/PostgreSQL credential store.

Implement the data-ingestion service: call vendor APIs to pull assets, vulnerabilities, impacted products and remediation data; handle pagination,

retries, and rate-limit back-off; persist raw responses to PostgreSQL.

Implement the correlation/enrichment service:



extract asset identifiers, attach CVE and remediation details, and write structured device vulnerability product remediation mappings to PostgreSQL, including minor per-provider schema updates.

Build the test-connection API touch-point: validate credentials interactively and on save; auto-disable integrations on repeated 401/403 responses to avoid vendor rate-limit issues.

Apply established design patterns and SOLID principles so each connector is scalable, reusable, and consistent with the existing integration model.

Write clean, well-tested code in an Agile environment; contribute to code reviews and development best practices.

Communicate clearly with the team on design tradeoffs, estimates, and technical risk.

Required Skills

4+ years professional experience in C# / .NET / .NET Core, ASP.NET / ASP.NET MVC

Strong experience building and consuming RESTful/Web APIs, including third-party vendor API integrations

Solid working knowledge of PostgreSQL (or similar RDBMS) and SQL/T-SQL, including schema evolution

Experience with ADO.NET / LINQ, JSON & XML data handling

Understanding of authentication/credential-handling patterns and secure storage of secrets

Familiarity with retry/back-off patterns, pagination handling, and rate-limit management when integrating with external APIs

Experience writing Windows Console Applications and/or background services

Working knowledge of Git/TFVC and Agile delivery (JIRA or equivalent)

Strong written and spoken English; ability to work with distributed/on-site offshore teams

Valuable to Have

Prior exposure to vulnerability-management platforms (Qualys, Microsoft Defender, Rapid7) or the security product domain

Experience with Azure or AWS services

Knowledge of OWASP security principles and data encryption practices

Exposure to CI/CD, unit testing, and automation practices

What We're Looking For

Someone who likes figuring out solutions against real client constraints not just writing code to spec. You should be comfortable owning a connector end-to-end: design, build, test, and hand off, with an eye for how it fits into broader integration architecture

📌 C#/.NET Integration Developer - Full Time (Bengaluru)
🏢 Spadtek Solutions
📍 Bengaluru