TJHelpers is committed to developing strong engineering teams through mentorship, real project experience, and our “Helpers as a Service” model. We provide structured growth, hands-on practice, and a supportive environment where engineers can evolve quickly and meaningfully.

We are looking for a Senior Java Developer (Technical Consultant) to join our team and help build scalable, high-performance backend systems for fintech, AI, telecommunications, healthcare, and other high-load domains.

This role combines hands-on backend development with participation in architecture design, technical planning, and a consulting-driven approach to building reliable, scalable, and maintainable systems.

Responsibilities

• Design and develop scalable backend services and microservices using Java 17/21, Spring Boot, and Spring Cloud
• Participate in architecture design, technical planning, and engineering decision-making
• Build event-driven systems using Kafka or RabbitMQ and develop REST or GraphQL integrations
• Improve system performance, scalability, reliability, and maintainability
• Optimize application performance, database interactions, and backend processing flows
• Collaborate closely with DevOps, QA, product, and engineering teams
• Participate in code reviews and contribute to engineering best practices
• Diagnose and resolve issues in production environments
• Participate in technical discussions with clients and stakeholders when needed
• Provide technical guidance, architectural recommendations, and mentorship

Requirements

• Strong commercial experience with Java and Spring Boot/Spring Cloud
• Strong experience designing and building microservices, REST APIs, and distributed systems
• Strong understanding of software architecture principles and integration patterns
• Experience with PostgreSQL or MySQL and Hibernate/JPA
• Experience with Kafka, RabbitMQ, or other messaging systems
• Experience optimizing application performance, scalability, and database interactions
• Experience with Docker and CI/CD pipelines
• Experience with at least one cloud platform such as AWS, GCP, or Azure
• Strong debugging, troubleshooting, and problem-solving skills
• Ownership mindset and responsibility for technical solutions and delivery quality
• Ability to communicate technical decisions clearly to both technical and non-technical stakeholders

Nice to Have

• Experience with Redis, Elasticsearch, or GraphQL
• Knowledge of Kubernetes or Terraform
• Experience working with high-load systems, caching, and observability tools such as Prometheus, Grafana, or ELK
• Familiarity with event-driven architecture and asynchronous communication patterns
• Experience participating in technical consulting, solution design, or system modernization initiatives

What We Offer

• Work on real-world projects in fintech, AI, telecommunications, healthcare, and other modern domains
• Opportunity to influence architecture and technical decisions
• Clear growth path toward Tech Lead or Architect roles
• Open engineering culture with transparent processes and strong technical collaboration
• Flexible schedule and fully remote work opportunities