Senior Java Developer @ Tooploox

Hi there! 👋🏻

We’re  Tooploox 💎 , a  Solvd Inc . company.

We create AI-powered products and services that make a real difference. Our team of nearly 200 specialists - including a 40+ person R&D team with many PhDs - has pioneered AI solutions across industries from healthcare to e-commerce. We’ve published research in top-tier venues like NeurIPS and ICML, while delivering real-world applications that help our clients innovate and scale.

We are looking for a  Senior Java Developer  to join our team. The ideal candidate will have experience developing scalable Java applications.

About the project :   We are developing a data retrieval and operations platform for a next-generation customer support system for a global e-commerce leader. The platform will provide a federated GraphQL interface that unifies access to multiple backend services, enabling low-latency, real-time data retrieval and transactional operations to support AI-driven workflows.

The role will focus on designing, building and optimizing the platform to ensure scalability, reliability and test automation. This is a multi-team, collaborative initiative that requires close coordination with other delivery teams, adherence to high engineering standards and a strong focus on integration and architectural alignment.

How we work :

At  Tooploox  💎, you have the  flexibility to choose your working hours ⏰ and location  📍. While we value  remote work , we also believe in  building relationships  🤝and invite you to join us in our  Warsaw and Wrocław offices  🏢. Enjoy  a relaxed atmosphere  🍃 and try some “home-made” pizza 🍕 from our office pizza oven. We l ove having pets 🐶 in the office,  so feel free to bring yours along.😁

Join us and shape the future of AI while working the way you like!

Experience and skills you need to join us :

• 5+ years  of backend development experience in Java and Spring Framework
• Proficient in  RESTful API  design, experience with  GraphQL APIs
• Experience with message brokers (e.g., Kafka, RabbitMQ, ActiveMQ) and caching (e.g., Redis, Memcached)
• Proficient with authentication and authorization mechanisms, especially OAuth 2.0
• Experience with containerization and orchestration tools like Docker and Kubernetes
• Knowledgeable in performance troubleshooting, profiling, and debugging tools
• Capable of solving complex challenges related to latency, data consistency, and performance in distributed systems
• Understanding patterns of distributed systems design; resilience patterns such as circuit breakers, retries, and timeout
• Proficient with code versioning tools, such as Git
• Skilled in CI / CD tools and practices
• English : B2+ (Written and Oral)
• Experience working in a lean agile process
• Proactive approach in understand the customer’s business and refining business requirements into technical requirements

It would be great if you also have :

The ideal candidate would have :

Hi there! 👋🏻

We’re  Tooploox 💎 , a  Solvd Inc . company.

We create AI-powered products and services that make a real difference. Our team of nearly 200 specialists - including a 40+ person R&D team with many PhDs - has pioneered AI solutions across industries from healthcare to e-commerce. We’ve published research in top-tier venues like NeurIPS and ICML, while delivering real-world applications that help our clients innovate and scale.

We are looking for a  Senior Java Developer  to join our team. The ideal candidate will have experience developing scalable Java applications.

About the project :   We are developing a data retrieval and operations platform for a next-generation customer support system for a global e-commerce leader. The platform will provide a federated GraphQL interface that unifies access to multiple backend services, enabling low-latency, real-time data retrieval and transactional operations to support AI-driven workflows.

The role will focus on designing, building and optimizing the platform to ensure scalability, reliability and test automation. This is a multi-team, collaborative initiative that requires close coordination with other delivery teams, adherence to high engineering standards and a strong focus on integration and architectural alignment.

How we work :

At  Tooploox  💎, you have the  flexibility to choose your working hours ⏰ and location  📍. While we value  remote work , we also believe in  building relationships  🤝and invite you to join us in our  Warsaw and Wrocław offices  🏢. Enjoy  a relaxed atmosphere  🍃 and try some “home-made” pizza 🍕 from our office pizza oven. We l ove having pets 🐶 in the office,  so feel free to bring yours along.😁

Join us and shape the future of AI while working the way you like!

,[Develop and maintain the server-side logic of our applications using Java, Implement efficient and performant backend code for high-volume production applications, Monitor application health, identify related risks, and ensure reliability in production environment, Contribute to all phases of the development lifecycle, from concept to deployment, Review and refactor code, establishing best practices for code hygiene and organization] Requirements : Java, Spring, GraphQL, REST API, Redis, Kafka, Docker, Kubernetes, Spring Framework, API, RabbitMQ, ActiveMQ, Memcached, OAuth, NoSQL, MongoDB, Cassandra, LLM's, GCP, React Additionally : Sport subscription, Training budget, Private healthcare, International projects, Insurance, English lessons, Integration events, Free coffee, Gym, Bike parking, Playroom, Shower, Free snacks, Free beverages, In-house trainings, Modern office, Startup atmosphere, No dress code.