Java Architect

As a Java Architect at tkxel, you will lead the design and evolution of complex, scalable, and intelligent systems across enterprise, IoT, and data-driven domains. You will serve as the technical authority on the Java ecosystem as someone who not only writes clean, efficient, and maintainable code but also deeply understands the internals of the JVM, concurrency, memory management, and performance tuning.
This is a hands-on leadership role for someone who can blend architectural vision with engineering depth to build future-ready systems for modern businesses.

• Craft modular, resilient architectures for enterprise-scale applications using Java 17+, Spring Boot, and Spring Cloud.
  

• Leverage domain-driven design (DDD), event-driven architecture (EDA), and microservices patterns to ensure scalability and maintainability.
  

• Deep understanding of JVM internals, garbage collection tuning, classloading, threading, and asynchronous/reactive paradigms.
  

• Proficiency with Java Performance Profiling, memory leak detection, and bytecode-level optimizations.
  

• Ability to evaluate trade-offs between blocking vs. non-blocking I/O, synchronous vs. asynchronous flows, and reactive streams.
  

• Architect and implement real-time data ingestion pipelines leveraging Kafka, MQTT, WebSockets, or gRPC.
  

• Design IoT backend systems that handle millions of sensor events per second, ensuring low latency, fault tolerance, and elastic scalability.
  

• Integrate with modern data lakes, time-series databases, and real-time analytics pipelines. Big plus if you have hands-on experience with AWS Kinesis
  

• Collaborate with data engineering and AI/ML teams to design APIs and data contracts that enable predictive analytics.
  

• Advocate for data observability and design for event traceability across distributed systems.
  

• Anticipate bottlenecks early through architectural reviews, chaos testing, and load simulation.
  

• Advocate for clean architecture, SOLID principles, and secure coding practices.
  

• Ensure system resilience via graceful degradation, circuit breakers, and idempotent service design.
  

• Guide engineers on system design, performance optimization, and refactoring decisions.
  

• Partner with Solution Architects, DevOps, and Product Owners to balance innovation, speed, and stability - especially using GenAI tools sensibly.
  

• Participate in pre-sales consultations to evaluate client requirements, identify risks, and propose sound technical solutions.
  

• Stay updated on the Java ecosystem (Project Loom, GraalVM, Virtual Threads) and evaluate their practical adoption.
  

• Drive modernization of legacy Java systems to cloud-native, containerized, or serverless architectures.
  

• 10+ years of professional software development, with 3+ years in a system architecture or senior technical leadership role.
  

• Strong command of Java 17+, Spring Boot, Spring Cloud, JPA/Hibernate, and RESTful APIs.
  

• Solid grasp of concurrency models, JVM performance tuning, design patterns, and functional programming in Java.
  

• Hands-on with microservices, API gateways, and distributed tracing tools (Zipkin, Jaeger).
  

• Cloud-native experience with AWS, Azure, or GCP, leveraging container orchestration platforms, preferably Kubernetes
  

• Proficiency in relational, NoSQL, and time-series databases
  

• Familiar with CI/CD pipelines, GitOps, and observability stacks (ELK, Prometheus, Grafana).
  

• Exposure to IoT protocols (MQTT, CoAP) is a big plus
  

• Experience with Reactive frameworks (Spring WebFlux, Vert.x).
  

• Strong analytical and problem-solving mindset: able to see patterns, not just symptoms
  

• Excellent communicator who can align engineering and business goals clearly.
  

• Mentorship-driven, collaborative, and thrives in cross-functional, agile environments.