Capital Rx · 10 hours ago
Senior Scalability Engineer - Caching & Performance Optimization
United States
Full-time
Remote
Senior Level, Lead/Staff
$160K/yr - $200K/yr
10+ years expJudi Health is an enterprise health technology company providing a comprehensive suite of solutions for employers and health plans. They are seeking a Senior Scalability Engineer focused on caching infrastructure and performance optimization to own the architecture and improvement of caching solutions across their platform.
Hospital & Health Care
Responsibilities
Own caching infrastructure: Design, implement, and maintain caching architecture using Valkey/Redis (ElastiCache) for high-throughput healthcare applications processing millions of transactions per day
Build shared libraries: Develop and evolve caching libraries and patterns used across multiple engineering teams, establishing best practices for cache key design, invalidation strategies, and performance monitoring
Partner with engineering teams: Work directly with product teams to design and implement caching solutions tailored to their specific use cases, providing technical guidance and hands-on support during implementation
Drive performance optimization: Conduct deep performance analysis using profiling tools to identify bottlenecks beyond caching—database queries, application code, infrastructure—and deliver measurable improvements
Establish performance standards: Define performance benchmarks, implement monitoring and alerting, and help teams measure the impact of optimizations through data-driven analysis
Contribute to observability: Enhance observability infrastructure (LGTM stack) to track cache hit rates, latency patterns, and system performance metrics across the platform
Demonstrate technical leadership: Mentor engineers on performance best practices, lead architecture reviews, and represent the Scalability team in cross-functional planning discussions
Responsible for adherence to the Capital Rx Code of Conduct, including reporting of noncompliance
Qualification
Required
10+ years of software engineering experience with demonstrated progression into technical leadership roles
3+ years of experience leading technical initiatives, mentoring engineers, or serving as a subject matter expert on complex systems
Strong expertise in Python (Flask/SQLAlchemy) for production applications
Deep PostgreSQL knowledge: Advanced query optimization, indexing strategies, triggered, stored procedures, plan analysis, and experience with replication and clustering
Production caching experience: Proven track record designing and implementing caching strategies at scale using Redis, Valkey, Memcached, or similar technologies
Performance optimization expertise: Demonstrated ability to profile applications, identify bottlenecks, and deliver measurable performance improvements (latency reduction, throughput gains, cost savings)
AWS experience: Production experience with Aurora RDS, Lambda, ElastiCache, EC2, ECS, and S3
Systems thinking: Ability to analyze performance across the full stack — application, database, caching, infrastructure — and make architectural tradeoffs
Collaboration and communication: Strong written and verbal communication skills with ability to work autonomously while driving proactive collaboration in a remote environment
Preferred
Rust development experience or strong interest in learning Rust for high-performance systems
Infrastructure as code: Experience with Terraform or similar IaC tools for managing cloud infrastructure
Observability tools: Hands-on experience with Grafana, Prometheus, Loki, or similar monitoring/alerting platforms
High-throughput systems: Background in building systems that handle millions of requests per day with strict SLA requirements
Previous Pharmacy Benefits Manager (PBM) or healthcare technology experience
Company
Capital Rx
Capital Rx is now Judi Health! Navigate to our new page here: https://www.linkedin.com/company/judi-health
501-1000 employees
H1B Sponsorship
Capital Rx has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
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Trends of Total Sponsorships
2025 (3)
2024 (2)
2023 (1)
2022 (1)
2021 (5)
Funding
Current Stage
Late StageLeadership Team
A. J. Loiacono
CEO
Ryan Kelly
CTO
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