Principal Platform Software Engineer; APEX

Leads platform projects crossing multiple teams, evolving runtimes or middleware patterns for interoperability and multi-tenant scale. Diagnoses and resolves complex cross-service issues; enforces versioning, compatibility, and safe rollout practices. Drives observability standards, capacity planning, and resilience patterns across several workloads. Produces migration guides and adoption playbooks that raise ecosystem consistency and developer experience.

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Career Level - IC4

Key Responsibilities Platform Software Development:

Lead cross-team evolution of middleware patterns or runtimes to standardize interoperability ine and enforce versioning, deprecation, and rollout strategies that minimize downstream breaks.

Drive shared observability baselines (SLOs, error budgets) and resilience patterns across several services.

Software Development and Coding
- Design, Testing, and Optimization:

Designs software solutions and analyzes and identifies requirements to achieve business and operational goals, sharing results with manager upon completion.

Adheres to and improves execution of all phases of the software development lifecycle; provides guidance and coaching to engineers to drive improvements.

Utilizes advanced knowledge to develop and guide new software features and enhancements leading design specifications, ensuring accessibility, and develops documents to clarify software design and code.

Leads code reviews in multiple areas to help drive improvements.

Conducts debugging and troubleshooting to identify and fix complex software issues.

Develops fixes for identified issues.

Implements comprehensive software testing (e.g., functional and non-functional testing), quality assurance processes, software error logging, monitoring, and observability for effective debugging, sharing work with manager and/or lead upon completion.

Conducts performance profiling and optimization of coding, building scalable solutions, and anticipating and resolving potential outcomes.

Troubleshoots and resolves complex issues related to application programming interface (API) functionality and integration.

Implements complex API versioning, lifecycle, and interoperability strategies.

Software Architecture
- Software System Structural Design:

Implements and contributes to developing software, systems, and services, ensuring review by manager…