Java Architect

MJDP Resources

Philadelphia, PA

JOB DETAILS
SKILLS
Application Programming Interface (API), Best Practices, Cloud Architecture, Cloud Computing, Code Reviews, CompTIA Security+, Continuous Deployment/Delivery, Continuous Integration, Debugging Skills, Distributed Computing, Django, Enterprise Protection, Flask, Identity Data Management, Integration Testing, JUnit, Java, JavaScript, Mentoring, Microservices, Microsoft .NET, Microsoft ADO (ActiveX Data Object), Microsoft SQL Server, Microsoft Transact-SQL (T-SQL), Microsoft Windows Azure, Middleware Design, MongoDB, Node.js, OAuth, Production Support, Public/Media/Press/Analyst Relations, Python Programming/Scripting Language, Query Optimization, REST (Representational State Transfer), React.js, Redis, SQL (Structured Query Language), Scalable System Development, Scripting (Scripting Languages), Sockets, Software Engineering, Team Lead/Manager, Technical Leadership, Telemetry, Test Automation, Test Patterns, Testing, Unit Test
LOCATION
Philadelphia, PA
POSTED
30+ days ago

Job Description

We are looking for a Lead Architect who is a true hands-on engineer—someone who designs solutions and writes production code daily. You will lead architecture and delivery across a cloud-native platform built on Java + Spring, .NET 8/10, Python (Django/Flask microservices), SQL, React, Node.js + Socket.IO, and Microsoft Azure (ADO/App Service/Container Apps/Functions/Service Bus/Key Vault/Blob/Monitor/App Insights/APIM).
This role requires cross-stack ownership and the ability to guide teams while staying hands-on—coding, reviewing PRs, mentoring offshore engineers, driving PoCs to production, and ensuring security + reliability.

- Lead by coding (daily): Deliver features and fixes in Java/Spring, Python services, and .NET with strong unit/integration test coverage.
- Build & evolve Python microservices: Work across Python 3.12/3.13, Django 5.x and Flask 3.x services, including API design, background processing patterns, and Azure integrations.
- Architect cloud-native services: Build scalable microservices and event-driven workflows on Azure (App Service/Container Apps, Functions).
- Implement async messaging patterns: Use Azure Service Bus (queues/topics/subscriptions), retries, DLQs, idempotency, and resiliency best practices.
- Build real-time capabilities: Develop and scale Node.js + Socket.IO/WebSockets services (secure connections, rooms/namespaces, multi-instance scaling patterns).
- Own secure integrations: Implement enterprise-grade security using Azure Key Vault, Managed Identity (MSI), certificates, and Azure AD/Entra ID auth patterns (OAuth2/OIDC/JWT).
- Drive data reliability: Build and optimize SQL Server schemas, queries, and deployment scripts (safe, idempotent, CI/CD friendly).
- Operational excellence: Instrument services with Application Insights/Azure Monitor + OpenTelemetry, build health checks, and support production incidents and root-cause fixes.
- Mentor and set standards: Run strong PR reviews, enforce engineering standards, and mentor offshore engineers through pairing, reviews, and technical guidance.

Qualifications
- 10+ years in software engineering with recent, demonstrable hands-on delivery
- Must be strong across Java/Spring + React + Python (not just oversight—actual coding)
- Proven success leading teams without stepping away from coding
- A quality-first mindset: testing, security, observability, performance, and reliability

Must-Have Skills (Non-Negotiable)
1) Backend (Java)
- Java 21 + Spring Boot 3.x (REST APIs, Spring Security, Spring Data, production microservices)
- API design, middleware, performance mindset; service reliability
- Strong automated testing: JUnit 5 + Mockito (Java) and modern .NET testing patterns
2) Python
- 2+ years hands-on Python building production services (within overall 10+ years experience)
- Framework experience with Django (5.x) and/or Flask (3.x); ability to design and maintain REST APIs
- Testing culture: pytest (and related patterns like coverage and mocking
- Comfort debugging distributed systems and Azure SDK integrations in Python (identity, storage, telemetry)
3) Web / UI
- React (TypeScript/JavaScript, modern patterns, debugging and performance awareness)
4) Real-Time / Integration
- Node.js + Express and Socket.IO/EventsHub/WebSockets (real-time messaging, connection security, scalability)
5) Data
- SQL Server (T SQL, query optimization, transactions, deployment scripts, reliability and performance)
6) Azure (Hands-On)
- Strong hands-on Azure delivery with:
App Service/Container Apps, Azure Functions, Service Bus, Blob Storage, Key Vault, Managed Identity, Application Insights, Azure Monitor/OpenTelemetry, and APIM

Nice-to-Have (Adds Strong Value)
- .NET 8/10 (API design, middleware, performance mindset; service reliability)
- Redis / Azure Redis Cache (including scaling Socket.IO with Redis adapters)
- Cosmos DB (Mongo API) / MongoDB familiarity
- AI/document workflows exposure: Azure AI Search, Azure OpenAI, Form Recognizer/OCR, an

About the Company

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MJDP Resources