Senior Solution Architect: Azure, .NET & React Architecture

Deloitte France; Hermitage (Mercer County); On-site; USD 140,000 - 190,000; Full time

Job summary

Deloitte Global is hiring a hands-on Solution Architect to design and evolve architecture for new features and existing capabilities across Azure using .NET/C#, React/Node, and modern data-processing patterns. You’ll lead with code, produce reference implementations, and ensure robust, scalable solutions.

You will define high- and low-level designs, author ADRs, and validate decisions via experiments and load tests, while guiding governance, security, and observability throughout the stack.

Qualifications

• At least 7 years experience building production software, 3+ years as a hands-on architect or principal engineer.
• Deep proficiency in C#/.NET (7/8), ASP.NET Core, WebAPI, async/concurrency, performance profiling.
• Strong React (18+) + TypeScript and Node.js experience, testing with Jest/Cypress.
• Proven delivery of data-processing-intensive systems (batch/stream, resiliency, throughput, cost).
• Solid understanding of architecture trade-offs, DDD, integration patterns, and secure design.
• Preferred: Databricks / Data Lake, Tableau or PowerBI; Azure Solutions Architect Expert, DevOps Engineer Expert.

Responsibilities

• Define HLD/LLD for new features and complex refactors (context & container diagrams, sequence diagrams, deployment views, data flows).
• Author and steward Architecture Decision Records (ADRs), validate decisions via experiments and load tests.
• Build reference implementations/PoCs in C#/.NET and React/Node to de-risk patterns, performance, and operability.
• Review and merge PRs, provide actionable feedback, and pair with engineers on tricky problems.
• Design event-driven and streaming architectures leveraging Azure Service Bus, Functions, App Services, AKS, and API Management.
• Engineer for high throughput and low latency: concurrency, async I/O, caching (Redis), partitioning, idempotency, back-pressure, and circuit-breaking.
• Model data across Azure SQL and Cosmos DB, including indexing, partitioning, consistency, and query optimization.
• Guide modern React (TypeScript) architecture: component design, state management, performance profiling, accessibility, SSR/BFF patterns with Node.js.
• Ensure clean API contracts (REST/JSON, GraphQL where appropriate), schema governance, and sound error semantics.
• Drive observability: distributed tracing (OpenTelemetry), metrics and logs (App Insights), and actionable dashboards/alerts.
• Bake in security: OIDC/OAuth2 (Entra ID), secrets management (Key Vault), OWASP ASVS, threat modeling.
• Define SLOs/SLIs, error budgets, and ensure production readiness─on-call participation and RCA for major incidents.
• Champion CI/CD (Azure DevOps or GitHub Actions), IaC (Bicep/Terraform), repeatable environments, and golden paths/templates.
• Optimize for cost and performance (FinOps): right-sizing compute, data tiering, caching, and workload scheduling

Skills

C#/.NET

ASP.NET Core

WebAPI

Async/Concurrency

Performance profiling

React

TypeScript

Node.js

DDD

Security design

Azure

Tools

Azure Service Bus

Azure Functions

AKS

API Management

Redis

OpenTelemetry

App Insights

Bicep

Terraform

GitHub Actions

Job description

Deloitte Global is hiring a hands-on Solution Architect to design and evolve architecture for new features and existing capabilities across Azure using .NET/C#, React/Node, and modern data-processing patterns. You’ll lead with code, produce reference implementations, and ensure robust, scalable solutions.

You will define high- and low-level designs, author ADRs, and validate decisions via experiments and load tests, while guiding governance, security, and observability throughout the stack.