Principal Testing Services Consultant (API Testing Specialist)

About the Role The API Specialist for Automation (SimCorp Dimension) at IC6 grade is responsible for building, maintaining, and optimizing automated API testing and integration frameworks that support SimCorp Dimension (SCD) components and surrounding enterprise systems. You will ensure the quality, reliability, and performance of API-based interfaces used for investment operations, portfolio management, and downstream financial workflows.

What You'll Do

• Develop and maintain automated test suites for SCD exposed APIs (e.g., Front Office, Risk, Compliance, and Performance Management, Data Management).
• Build reusable test automation components for validating business critical processes such as trade booking, valuations, instrument reference data, pricing, and portfolio data flows.
• Implement and execute automated test suites triggered through CI/CD pipelines.
• Automate validation of data exchanges between SimCorp Dimension and upstream/downstream systems (market data providers, custodians, clearing houses, accounting systems).
• Support automation for SCD integration modules like SimCorp Gain, SimCorp API Gateway, and SimCorp Update Manager.
• Create tools/scripts to verify end-to-end data consistency across SCD tables, extracts, and API endpoints.
• Design automation frameworks using C# / .NET, MSTest, Reqnroll (BDD), Swagger, Insomnia.
• Provide supporting utilities for XML/JSON schema validation and SCD extract processing; integrate automation execution with Azure DevOps pipelines.
• Collaborate with SimCorp consultants and SMEs to understand API usage, SCD configuration, workflows, and event triggers.
• Participate in release readiness assessments, sprint ceremonies, and integration workshops.
• Help identify testable API entry points for new SCD modules or service updates.
• Troubleshoot API failures by analyzing logs, payloads, sequencing, authentication flows, and SCD backend data.
• Identify root causes within SCD processes or integrations; improve test stability and coverage across environments.
• Maintain API test plans, Swagger/OpenAPI references, and automation framework documentation; align with enterprise quality standards.
• Support the establishment of API quality metrics and dashboards for reporting.

What We're Looking For

• Specialist level 7 to 10 years in QA / Testing Services.
• 3–4 years of experience in API automation in financial services or investment management systems.
• Practical knowledge of API testing – endpoints, HTTP methods, and response status codes.
• Strong knowledge of C# and the .NET platform for test automation.
• Experience in creating and maintaining automated API tests.
• Knowledge of BDD methodology and writing scenarios in Gherkin (Given/When/Then).
• Ability to work with scripting languages, particularly PowerShell.
• Experience with Azure DevOps including Azure Pipelines and Git repositories.
• Good understanding of SimCorp Dimension, including static data & instruments, transaction flows, accounting & valuation processes, and data warehouse interfaces.
• Familiarity with capital markets concepts (securities, derivatives, positions, pricing).
• Experience with CI/CD pipelines and version control (Azure DevOps, Git).
• Experience with Insomnia for API Testing and Visual Studio Code.

Nice to Have

• Experience with SimCorp Dimension Integration Layer (IL), SCD Web Services, or SimCorp Coric APIs.
• Understanding SCD transaction lifecycle modules and configuration.
• Knowledge of financial messaging standards (SWIFT, FIX, ISO 20022).
• Familiarity with the Reqnroll (SpecFlow) framework.
• Soft skills: solid analytical thinking and structured problem solving; clear communication and documentation, especially when engaging with functional teams.

Compensation & Benefits

• Salary not disclosed.