6+ years in test automation / SDET roles, with a focus on backend and server-side systems (not mainly UI testing).
Robust C# / .NET coding. You build and maintain test frameworks, not just scripts (MSTest, NUnit or xUnit).
Strong SQL Server skills: you write complex queries to set up and verify data, and you understand stored procedures, transactions and isolation well enough to test them properly.
Experience testing APIs, services and message-based systems (queues, Kafka or similar), including asynchronous and failure scenarios.
Comfortable on Windows Server: services, event logs, log files, configuration and troubleshooting.
Solid test design: equivalence partitioning, boundary values, state transitions, and negative and failure-path testing.
Experience running tests in CI/CD pipelines (Azure DevOps/TFS, Jenkins or similar) and with Git.
Strong debugging and analytical skills, and explicit written communication in defect reports and test documentation.
Working knowledge of acquiring. You know what to test and what correct” looks like on the acquirer side:
The four-party model (merchant, acquirer, card scheme, issuer)
The transaction lifecycle: authorization, capture, clearing, settlement and merchant payout
Refunds, reversals,



offline transactions and chargebacks
Interchange, scheme fees and merchant pricing (blended vs. interchange++)
Reconciliation of transactions against clearing files and payouts
Need to know
Payment protocols and scheme formats: ISO 8583, GICC, ZVT, EMV, girocard, Visa / Mastercard clearing formats (for example Base II, IPM).
Testing experience on an acquiring or merchant-processing platform, including scheme certification or acquirer migrations.
Experience with payment simulators and test tools (terminal, host or HSM simulators, test card sets).
Ability to read C++ code to understand behavior and find edge cases.
Java / Spring Boot and REST API testing (for example REST Assured or Postman/Newman).
Performance testing tools such as JMeter, k6, NBomber or Gatling.
Banking file formats such as SEPA, camt or Mastercard IPM.
Test management in Jira / Xray, and experience producing audit evidence in regulated settings (PCI DSS, BaFin, DORA).
Experience with AWS or with testing infrastructure migrations.
German language skills are a plus, since parts of the code, test cases and documentation are in German.

📌 Sdet Engineer Bengaluru
🏢 ALTIMETRIK
📍 Bengaluru