Role Overview: We are seeking a highly skilled Senior Solution Architect with deep expertise in designing and delivering modern, customer facing web applications on AWS, leveraging React.js, Node.js, PostgreSQL, and scalable architectural patterns. The ideal candidate will excel at building high volume OLTP systems, implementing load balanced, resilient architectures, and ensuring secure, performant, and cloud native delivery using AWS best practices.
This role demands strong architectural leadership, hands on technical depth, and a proven ability to collaborate across product, engineering, security, and DevOps teams to deliver enterprise grade digital platforms.
Key Responsibilities:
Architecture & Solution Design
- 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 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
- API Gateway, CloudFront, S3 for global-scale delivery
- 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 built in 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:
- IAM design & RBAC
- JWT/OAuth2 authentication
- 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.
DevOps, Observability & Delivery
- Partner with DevOps to design CI/CD pipelines, IaC (Terraform/CloudFormation), and automated release processes.
- Ensure full-stack observability using CloudWatch, X-Ray, ELK/Datadog/New Relic.
- Champion SRE practices error budgets, performance baselines, incident readiness.
Required Skills:
- 10 15+ years of experience in architecture and engineering for enterprise-grade web applications.
- Strong hands-on expertise with:
- React.js, JavaScript/TypeScript (frontend)
- Node.js, Express/Nest.js (backend)
- PostgreSQL, schema design, performance tuning
- AWS cloud architecture (compute, network, security, data, serverless)
- Proven experience designing high-volume OLTP systems and distributed back-end architectures.
- Strong understanding of load balancing, caching, async patterns, CI/CD, containers, and cloud-native technologies.
- Expertise with VPC, network segmentation, API security, and zero-trust principles.
- Deep knowledge of microservices, domain-driven design (DDD), and event-driven integration patterns.
Preferred Qualifications:
- AWS Certifications (Solutions Architect Professional highly preferred)
- Experience with:
- Docker, Kubernetes (EKS)
- Redis/RabbitMQ/Kafka
- GraphQL
- Infrastructure-as-Code (Terraform / CloudFormation)
- Experience working with global delivery teams in Agile environments.
Soft Skills:
- Strong communication and executive presentation abilities.
- Ability to influence stakeholders and drive architectural decisions.
- Passion for innovation, modernization, and raising engineering maturity.
- Ownership mindset with strong problem-solving skills.
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