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November 3, 2026
Lead Java Backend Developer
Senior • On-site
Wrocław, DS, Poland
Quick Facts
Role: Lead Java Backend Developer
Focus: Distributed systems, real-time streaming/time-series platforms, cloud-native architectures
Work model: Hybrid; required to work from the client’s office 3 days per week
Description
Lead the design and architecture of scalable enterprise platforms for high-throughput, mission-critical environments. Build and maintain real-time streaming and time-series data platforms, and develop microservices using modern Java frameworks. Apply security and resilience engineering best practices across backend systems.
Responsibilities
Design and architect scalable enterprise platforms using distributed systems and cloud-native architectures
Build and maintain high-performance, high-throughput real-time streaming and time-series data platforms
Develop microservices and data streaming solutions with modern Java frameworks
Apply resilience engineering and security best practices across backend systems
Translate business requirements into global technical solutions
Collaborate with cross-functional technology teams to deliver integrated solutions
Use AI-assisted tools to improve software development efficiency
Implement CQRS and Event Sourcing patterns within enterprise architecture
Ensure adherence to SDLC best practices and modern software development standards
Adapt architecture and engineering approaches to complex business and regulatory domains
Requirements
7+ years of experience in Java and Spring Boot development
Expertise in ORM frameworks including JPA and iBatis
Knowledge of security protocols such as Azure AD and OAuth
Proficiency in Kafka, CosmosDB, PostgreSQL, and Redis
Familiarity with REST, Azure, Docker, and Kubernetes
Skills with build tools such as Maven and Gradle
Background in microservices and data streaming architectures
Understanding of CS fundamentals and modern software development practices, including SDLC
Demonstrated ability with AI-assisted software development
Strong communication skills to translate business needs and collaborate with technology teams
English proficiency at B2 level or higher
Benefits
Career development programs; thought leadership, mentoring, soft skills, and well-being programs
Certifications (Anthropic, Gemini, GCP, Azure, AWS)
English classes
Stable pay
Employee Stock Purchase Plan with a 15% discount
Benefits package: health insurance, MultiSport, shopping vouchers
Referral bonuses up to $2,000
Office amenities and events, including entertainment/relaxation zones, table tennis/football, free snacks, and coffee
Corporate, social, and well-being events
Opportunity to work abroad for up to 60 days annually; business-driven relocation opportunities
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