Sr. Full Stack Software Architect

Delta System & Software, Inc.; New Jersey; On-site; USD 140,000 - 190,000; Full time

Job summary

Delta System & Software, Inc. seeks an experienced FSD Architect to lead end-to-end delivery of full-stack solutions. The role focuses on React/TypeScript, Java Spring Boot APIs, GraphQL/REST, and AWS-managed services, with emphasis on security, scalability, and reliable operation.

You will drive architecture reviews, define API contracts, data models, and integration patterns, while collaborating with Product and UX to deliver high-impact outcomes.

Qualifications

• Minimum 8 years applied full stack engineering experience; leadership/technical ownership.
• React expertise: modern patterns, TS, state management, design systems.
• Java Spring Boot: API building, DI, validation, error handling, performance.
• GraphQL: schema design, resolvers, federation, caching, governance.
• REST: OpenAPI design, pagination, idempotency, backward compatibility.
• OIDC/OAuth2: JWTs, scopes, secure sessions, least privilege access.
• AWS: designing/deploying cloud-native apps, IAM, networking, observability.
• AWS Aurora PostgreSQL: indexing, migrations, transactional design.
• AWS Neptune: graph modeling and performance considerations.
• AWS MSK: topics, partitions, consumer groups, schema evolution.
• CI/CD/quality: tests, gates, feature flags, rollout strategies.
• Claude Code/GitHub Copilot: accelerated development with security and correctness.

Responsibilities

• Leads end-to-end delivery of full stack solutions using React, Java Spring Boot, GraphQL/REST, and AWS services.
• Drives architecture and design reviews, defines service boundaries and APIs.
• Develops secure, production-grade code; conducts code reviews; enforces standards.
• Builds scalable, highly available services with emphasis on reliability and cost awareness.
• Implements authentication/authorization with OIDC/OAuth2 and token flows.
• Establishes observability practices and incident response readiness.
• Evaluates solutions and guides adoption, balancing security and operability.
• Partners with Product/UX to translate requirements into technical plans and milestones.

Skills

React

TypeScript

Java Spring Boot

GraphQL

REST

OIDC/OAuth2

AWS

AWS Aurora PostgreSQL

AWS Neptune

AWS MSK

Terraform

CI/CD

Git

Claude Code

GitHub Copilot

Tools

Terraform

Docker

ECS/EKS

GitHub Copilot

Claude Code

Job description

Exp: 12+ Yrs for Engineer and 16+ for Architect

Duration: Long term Project

FSD Architect role – Client is looking for lead who has leadership and Knowledge in a T Share (deep in Java, Spring Boot AWS, Terraform) and wide range of technologies

Job responsibilities

• Leads end-to-end delivery of full stack solutions using React, Java Spring Boot, GraphQL/REST, and AWS-managed services, from design through production support.
• Drives architecture and design reviews, defining service boundaries, API contracts, data models, and integration patterns.
• Develops secure, high-quality, production-grade code; conducts thorough code reviews; sets and enforces engineering standards.
• Builds and maintains highly available and scalable services with strong operational excellence: reliability, performance, cost awareness, and maintainability.
• Implements and governs authentication/authorization using OIDC/OAuth2, token validation, scopes/claims, and service-to-service security patterns.
• Establishes robust observability practices (structured logging, metrics, tracing), incident response readiness (runbooks).
• Evaluates vendor and internal solutions (including architectural fit, security posture, scalability, and operability) and guides adoption decisions.
• Partners with Product and UX to deliver outcomes; translates requirements into technical plans and milestones; proactively manages trade-offs.

Required qualifications, capabilities, and skills

• Minimum 8 years applied full stack engineering experience delivering and operating production systems; experience as a senior/lead capacity (technical leadership, design ownership).
• React expertise: modern React patterns, TypeScript, state management, component design systems, performance optimization, and responsive UI development.
• Java Spring Boot expertise: building APIs, dependency injection, validation, error handling, and performance tuning.
• GraphQL proficiency: schema design, resolvers, federation/composition patterns (where applicable), query performance (N+1 mitigation, caching), and API governance/versioning strategy.
• REST proficiency: OpenAPI-style contract design, pagination/filtering, idempotency, backward compatibility, and consumer-driven API evolution.
• OIDC/OAuth2: hands-on implementation with JWTs, refresh/access token flows, scopes/claims, secure session patterns, and least-privilege access control.
• AWS experience (hands-on): designing, deploying, and operating cloud-native applications; strong understanding of IAM, networking basics, and operational tooling (logs/metrics/alarms).
• AWS Aurora PostgreSQL: advanced SQL, indexing, query optimization, migrations, and transactional design.
• AWS Neptune: gremlin, graph modeling, query patterns, and performance considerations for graph workloads.
• AWS Kafka (MSK): topics/partitions, consumer groups, schema evolution, ordering/at-least-once semantics, idempotency, retries/DLQs, and operational monitoring.
• CI/CD and quality:
• Strong Git practices, automated testing (unit/integration/contract/e2e), code quality gates, and release confidence practices (feature flags, progressive rollout where applicable).
• Demonstrated proficiency using Claude Code and/or GitHub Copilot to accelerate development, debugging, refactoring, test generation, and documentation—while ensuring correctness, security, and maintainability (e.g., validating outputs, avoiding sensitive data leakage, and adhering to team standards).

Preferred qualifications, capabilities, and skills

• Infrastructure as Code (Terraform/CloudFormation/CDK) and deployment automation patterns.
• Containerization and orchestration experience (Docker, ECS/EKS) depending on platform direction.
• Advanced security practices: threat modeling, OWASP Top 10 mitigation, secrets management, dependency hygiene.
• Experience defining platform standards: API governance, event contracts, service templates, and reliability SLOs/SLIs.
• Prior experience integrating with Oracle HCM.