United States onlyHi 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.
What you will do:
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
Experience and skills you need to join us:
5+ yearsof backend development experience in Java and Spring Framework
Proficient in RESTful APIdesign, 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:
Experience with API contract testing
NoSQL (e.g., MongoDB, Cassandra)
Prompt engineering and experience with integration of GenAI LLMs into productions (ideally) or pet projects at least (OpenAI, Azure OpenAI, Bard, Llama)
Familiarity with federated Graph architectures
Experience mentoring less experienced colleagues is a strong advantage
Team leader experience is a strong advantage
Hands-on experience with Google Cloud Platform
ReactJS experience
The ideal candidate would have:
Strong communication skills with experience in direct customer interactions.
Ability to engage with clients on technical issues, gather requirements, manage expectations and provide updates on project status
Ability to learn quickly, adapt to new technologies, and perform tasks independently
Passion for writing clean, efficient, and maintainable code (and encouraging others to do so)
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 love having pets 🐶 in the office,so feel free to bring yours along.😁
