Jobs Java

🚀 Project Description
 

Modern Java project, utilizing Microservices Architecture, ensuring flexibility, scalability, and maintainability. We leverage Spring Boot, Kafka, PostgreSQL, Docker and K8S and AI tools, to build robust and production-ready applications.
 

✅ You are:
 

• Have practical experience from pet projects, hackathons, or open-source contributions
• Confident with Java 
• Comfortable working with Ktor and SpringBoot
• Understand MVC architecture and RESTful API development
• Have basic knowledge of PostgreSQL and ORM tools like JOOQ 
• Understand OOP, OOD, and SOLID principles
• Have written unit tests using JUnit or Mockito

• Can work with Docker for containerization

  
  ➕ Will be a plus:
   

• Comfortable working with AI Platforms: Cursor, Claude Code or Codex
• Have experience with
• Hands-on experience with Kafka and event-driven systems
• Understanding of Microservices Architecture

• Exposure to TestContainers and WireMock for testing

  
  ♟️ What We Expect from You:
   

• AI Adoption – Adopt and heavily use modern AI tools, frameworks and approaches, to make your impact effective and efficient.
• Accountability & Ownership – You take responsibility for your tasks and deliver quality work.
• Proactive Learning & Growth – As a junior developer, you should be eager to learn and rapidly improve your skills.
• Initiative & Problem-Solving – You don’t wait for instructions; you actively seek solutions and contribute ideas.
• Teamwork & Communication – We value engineers who communicate effectively and collaborate with the team.
• Adaptability – The tech landscape evolves quickly, and we want someone who is excited about new challenges.
  
  🔑 Responsibilities:
• Willing to take accountability for feature development
• Code, deploy & test new features of the product timely
• Participate in requirements analysis, estimation, and planning
• Write clean, scalable, and testable code
• Review pull requests
• Cooperating with team and stakeholders
• Analyze legacy code and apply refactoring techniques
• Develop products adopting the best practices
  
  🍩 What we offer:
   
• Professional development support:
  • $$$ on certifications and learning
  • Paid AI Assistants
• Flexible Work Hours (European Time Zone)
• Working environment that will boost your skills to Senior SE
• 20 days of vacations (business days)
• 5 days of sick leave
  • National Holidays covered
    
     
  • 🗣Recruitment process:
  • ✔️ Culture Fit Interview → ☑️ Tech Task → ✅ Follow-Up Interview → 🏁 Tech Interview
     
  • 💻 Tech task: Use Java or other preffered language could be used, depending on your current focus.

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 Java Developer to join our backend team and contribute to building scalable, high-performance, and reliable microservices for modern products across fintech, AI, telecom, healthcare, and other high-load domains.

Responsibilities

• Design, develop, and maintain scalable backend microservices and APIs.
• Write clean, efficient, and well-tested code using Java (17/21) and Spring Boot.
• Work with event-driven architectures using tools like Kafka or RabbitMQ.
• Integrate with internal and external REST/GraphQL services.
• Collaborate closely with DevOps, QA, and product teams to deliver high-quality features.
• Participate in code reviews and help establish engineering best practices.
• Optimize backend systems for performance, reliability, and cost efficiency.

• Investigate and resolve production issues, contributing to CI/CD and observability improvements.

   

Requirements

• Strong knowledge of Java and hands-on experience with Spring Boot / Spring Cloud.
• Experience building REST APIs, microservices, and integrations.
• Solid understanding of relational databases (PostgreSQL/MySQL) and ORM frameworks (Hibernate/JPA).
• Familiarity with Docker, containerization, and CI/CD pipelines.
• Knowledge of software architecture principles: microservices, event-driven systems, clean architecture.
• Experience with Git, unit testing (JUnit), and debugging/profiling tools.

• Good problem-solving skills and ability to work in a fast-paced environment.

   

Nice to Have

• Experience with cloud platforms (AWS, GCP, Azure).
• Knowledge of Kafka, Redis, Elasticsearch, or GraphQL.
• Experience with Kubernetes, Helm, or Terraform.
• Understanding of caching strategies, messaging patterns, and high-load system design.
• Experience with performance tuning, monitoring (Prometheus/Grafana), and observability tools (ELK).

• Familiarity with ML/AI integrations or data pipelines.

   

We Offer

• Real-world projects in fintech, AI, telecom, and automation industries.
• Mentorship from senior engineers, tech leads, and architects.
• Personal development plan and a clear path toward Senior Java Engineer or Backend Architect roles.
• Access to internal workshops, best practices, and structured feedback.
• A collaborative engineering culture focused on transparency and continuous improvement.
• Long-term projects, flexible schedule, and a remote-friendly work environment.

TJHelpers (Top Job Helpers) is a Ukrainian IT company with teams in Kyiv and Odesa and a hybrid operating model. We connect emerging talent with experienced IT professionals and build reliable delivery processes for modern software products since 2021.

What we do

We operate in two directions:

1) Helpers as a Service (HaaS)

A subscription-based model where an expert team can join your product at any stage: discovery and requirements, delivery planning, development, testing, release support, and post-production.

Our typical roles include PM, BA, CTO/Architect, Tech Lead, QA Lead, Developers, QA, DevOps/SRE — with strong reporting, quality gates, and transparent execution.

2) Employment Insurance (career partnership model)

A long-term career growth program: a candidate invests in learning and development, we help them land a project, and after employment they pay a percentage of their income for 24–36 months. This creates a sustainable partnership and measurable progress for both sides.

Experience

We started as online education and career support, and since August 2021 we have delivered project support to 45+ clients, building strong practices in planning, development, testing, delivery, and continuous improvement across multiple domains.

For candidates

We offer roles in HR, PM, delivery, and technical tracks (Java, DevOps, Cybersecurity, etc.), plus mentorship and a culture of openness and learning.

Hiring flow typically includes: initial screening → interview with a direct manager → paid 2-week trial → long-term contract (usually 1 year+ depending on the role).

Work format

Hybrid - (office / remote) depending on the team and location. We run regular internal syncs and support a learning-driven environment.