Lead Software Engineer - Java & UI

Description :

Responsibilities :

Role Overview :

Were looking for a hands-on Lead Software Engineer (Java & UI) to design and deliver end-to-end platforms with Java as primary and modern UI as secondary .

Focus areas include technical delivery , mentorship , quality , performance , and effective stakeholder communication .

Key Responsibilities :

- Full-Stack Architecture : Define clean boundaries between Java microservices (API-first) and React/TypeScript/Next.js front-ends, standardize API contracts and BFF patterns (Java-first).

- Build & Delivery : Implement domain services and REST APIs in Java, contribute to critical UI workflows and component libraries when needed.

- Quality & Testing : Apply test pyramids across tiers JUnit/Mockito/Testcontainers (BE), Jest/RTL/Playwright (FE), enforce API/UI contract tests.

- Performance & Security : JVM/DB tuning, caching, resilience, optimize Core Web Vitals and SSR/SSG/ISR, apply OAuth2/JWT , CSP.

- Observability : Logs/metrics/traces across BE & FE and error tracking, dashboards and alerting for release health.

- Mentorship & Collaboration : Mentor engineers, promote reuse (shared libs/components), communicate risks/trade-offs and align on scope with Product/UX/Architecture.

- Facilitate agile ceremonies : (stand-ups, backlog refinement, sprint planning, demos, retros) with a focus on technical outcomes, risk surfacing, and sprint goal clarity.

- Refine stories into actionable technical tasks : ensure Definition of Ready/Done , unambiguous acceptance criteria, testability, and accurate story point estimation .

Qualifications :

Must-have Skills :

Java (Primary) :

- Java / Java 8+ : OOP & SOLID , Streams , Optional , functional interfaces , lambda expressions .

- Concurrency : Thread pools, Future/CompletableFuture , synchronization, locks, concurrent collections , Java Memory Model , heap/stack, GC .

- Web & API : RESTful design, rate limiting , API gateway concepts, Swagger/OpenAPI documentation, WebLogic/WebSphere familiarity (or embedded servers).

- Spring : Spring Core (IoC/DI) , Spring MVC , Spring Boot , Spring Security (JWT/OAuth2), Spring Batch , Spring AOP .

- Architecture & Patterns : Event-driven design (MQ/queuing), patterns Factory, Builder, Strategy, Template .

- Data/Testing/Tooling : SQL & query tuning, Redis, JUnit/Mockito/Testcontainers, Maven/Gradle, Git, CI/CD, OpenTelemetry.

UI (Secondary 2030%) :

- React + TypeScript + Next.js : Component-driven development, hooks, state (Redux/RTK/Zustand), SSR/SSG/ISR , routing, image optimization.

- Performance & Accessibility : Core Web Vitals , code splitting, caching/CDN, WCAG 2.1 accessibility practices.

- Security & Testing : CSP, sanitization, XSS/CSRF protections, Jest , RTL , Playwright/Cypress .

- Integration : Robust consumption of Java APIs, auth flows (OAuth/OIDC, JWT), error handling and retry UX.

Good to Have :

- Design systems (Storybook, tokens/theming), monorepos (Nx/Turborepo).

- Messaging/eventing (Kafka), BFF-in-Java standards, API versioning strategies.

- Containers (Docker) and orchestration basics (Kubernetes/ECS).

Soft Skills :

- Strong problem-solving, analytical thinking, and bias for action .

- Plans, prioritizes, and communicates effectively across teams and time zones.

- Mentors teammates, provides clear, constructive feedback.

- Demonstrates ownership , raises the bar, and consistently exceeds day-to-day expectations.

- Identifies ambiguity/risks and proactively drives clarity and resolution with stakeholders