Senior Solution Architect Cloud & Data Platforms

Quantum Technologies LLC; San Francisco (CA); Hybrid; USD 170,000 - 250,000; Full time

Job summary

Quantum Technologies LLC in San Francisco seeks a senior Cloud Architect to lead end-to-end architecture for high-traffic, customer-facing applications.

You will design scalable microservices on AWS, define data models for high-volume OLTP with PostgreSQL, and mentor teams while aligning with product goals and security requirements.

Qualifications

• Architectural leadership across large-scale web platforms.
• Experience designing cloud-native systems in AWS.
• Strong design and coding skills in Node.js and React.js.

Responsibilities

• Lead end-to-end architecture for high-traffic, customer-facing web applications.
• Design scalable microservices-based and event-driven architectures using Node.js, REST APIs, and GraphQL.
• Architect SPA using React.js with modular components and optimized client-side performance.
• Define relational and non-relational data models optimized for high-volume OLTP transactions on PostgreSQL.

Skills

Cloud Architecture

AWS

Node.js

React.js

Security

Tools

PostgreSQL

Redis

Memcached

AWS ECS/EKS

Job description

Location:

Duration:

24Months+ Extension

Hourly Rate:

Depending on Experience (DOE)

Work Authorization:

• Lead endtoend architecture for hightraffic, customer-facing web applications.
• Design scalable microservices-based and event-driven architectures using Node.js, REST APIs, and GraphQL.
• Architect single-page applications (SPA) using React.js, modular component design, and optimized client-side performance.
• Define relational and non-relational data models optimized for high-volume OLTP transactions on PostgreSQL.
• Create architecture blueprints covering application layers, data flows, integration, observability, and deployment topology.

Cloud Architecture on AWS

• Design distributed, fault-tolerant, and secure solutions using key AWS services:
• VPC, Subnets, NACLs, Security Groups for network isolation
• ALB/NLB, Auto Scaling, ECS/EKS, Lambda for compute
• RDS PostgreSQL, Aurora, ElastiCache for data
• Ensure reliability, scalability, and high availability for systems processing large transaction volumes.
• Review and optimize cloud costs, architecture fitness, and performance.

Application Performance & Scalability

• Design solutions with builtin load balancing, auto-scaling, queueing, caching, and failover patterns.
• Architect for low latency, high throughput, and predictable system behavior under peak load.
• Ensure appropriate use of CDN, caching layers (Redis/Memcached), and async processing.

Security & Compliance

• Own the security architecture across application, data, and network layers:
• Data encryption in transit & rest
• Secure VPC patterns
• Work with InfoSec teams on threat modeling, vulnerability resolution, and cloud security posture.

Technical Leadership

• Guide engineering teams on architecture patterns, design reviews, best practices, and code quality.
• Collaborate with product owners, UX, DevOps, and QA to ensure cohesive delivery.
• Mentor developers and junior architects; evangelize modern engineering and cloud-native principles.

QUANTUM TECHNOLOGIES LLC is an equal opportunity employer inclusive of female, minority, disability and veterans, (M/F/D/V). Hiring, promotion, transfer, compensation, benefits, discipline, termination and all other employment decisions are made without regard to race, color, religion, sex, sexual orientation, gender identity, age, disability, national origin, citizenship/immigration status, veteran status or any other protected status. QUANTUM TECHNOLOGIES LLC will not make any posting or employment decision that does not comply with applicable laws relating to labor and employment, equal opportunity, employment eligibility requirements or related matters. Nor will QUANTUM TECHNOLOGIES LLC require in a posting or otherwise U.S. citizenship or lawful permanent residency in the U.S. as a condition of employment except as necessary to comply with law, regulation, executive order, or federal, state, or local government contract