Lead Java Developer

We are hiring 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, Python (Django/Flask microservices), SQL, React, Node.js + Socket.IO, and Microsoft Azure (ADO/App Service/Container Apps/Functions/Service BKey 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.

What You ll Do

• Lead by coding (daily): Deliver features and fixes in Java/Spring, Python services, 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.

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 (REQUIRED)

• 5+ 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 (TSQL, 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

What We re Looking For (Candidate Profile)

• 10+ years in software engineering with recent, demonstrable hands-on delivery
• Must be strong across Java/Spring + 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