Core Infrastructure Engineer 2

Implements and optimizes components within existing distributed systems under the guidance of senior engineers. Applies foundational scalability principles, conducts performance and load testing, and configures retries, circuit breakers, and timeouts to improve resilience to network variability. Delivers scoped features, develops fault-injection tests, and assists with data replication and synchronization.
Builds telemetry and alerts, maintains operational runbooks, and participates in on-call rotations with support. Uses automation and infrastructure-as-code scripts to troubleshoot issues. Follows established change management, security, and compliance procedures, including encryption, access controls, and remediation plans, and escalates complex issues appropriately.
 

Responsibilities

Key Responsibilities
System Design & Architecture - System Scalability:
–Assist in the implementation of components of distributed systems that support horizontal and vertical scaling under the guidance of senior engineers. 
–Optimize code segments and/or systems for large-scale data processing with oversight from senior engineers. 
–Implement scalability requirements for assigned components. 
–Learn about the use of data plane platforms for large-scale data retrieval, storage, and processing. 
–Execute performance and load testing, with guidance.
System Design & Architecture - System Reliability Design:
–Collaborate with the team to build fault-tolerant components capable of withstanding in-service updates by learning about redundancy, replication, and automatic failover mechanisms. 
–Learn about recovery oriented computing principles and assist in applying them to component designs. 
–Configure and test retry mechanisms, circuit breakers, and timeouts to help handle network unreliability, with guidance
System Design & Architecture - System Reliability Performance:
–Implement testing and alarming configurations to detect issues/failures. 
–Support efforts to recover from failures by drafting and executing runbooks and operational procedures, under guidance. 
–Help build dashboards, telemetry systems, and alerting mechanisms to monitor component health.
System Design & Architecture - Correctness / Availability:
–Implement functional requirements and testing for assigned features within an existing system. 
–Implement test scenarios (e.g., fault-injection, brown-out) to evaluate system correctness, under guidance. 
–Help implement basic data replication and synchronization techniques to maintain data integrity and availability.
Operational Troubleshooting & Incident Management:
–Assist in diagnosing and debugging issues in system components to support ongoing operation, under supervision. 
–Follow protocols to prevent interruptions, ensuring no maintenance windows are required for customers and users when resolving issues. 
–Run basic automation scripts and tooling to troubleshoot operational issues. 
–Participate in operational support rotations, assisting in incident responses and root cause investigations.
Compliance & Security:
–Assist in implementing basic security measures to protect data and applications in multi-tenant environments, including encryption and access controls. 
–Assist in the execution of remediation plans to address identified security gaps, under supervision. 
–Support the creation and updating of documentation to ensure cloud infrastructure is in compliance with relevant industry standards and regulations.
Automation & Change Management:
–Assist in maintaining basic automation scripts and tools (e.g., Infrastructure as Code (IaC)). 
–Adhere to change management plans for patching, updating, and rolling back applications, under guidance

Basic Qualification

• 3-5+ years of industry experience working on commercial or open-source software.
• Strong fluency in C++ or Java or similar modern languages
• Excellent problem-solving skills and a deep understanding of Computer Science fundamentals, including data structures, algorithms, and distributed systems.
• Experience with cloud infrastructure (AWS/GCP/Azure) and build control plane systems for cloud scale
• Strong systems programming skills, including experience with multi-threading and concurrency.
• A solid foundation in distributed systems concepts (e.g., consistency, scaling, failure recovery).
• Experience with implementation testing, debugging, and documentation, specifically within a Linux development environment.
• BS in Computer Science; Masters preferred
• Intense curiosity, willingness to question and passion for making systems

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