Senior Java Engineer – Tech Lead

SANDBX

Senior Java Engineer/Tech Lead influencing architectural decisions for healthcare technology. Collaborating on modernizing platforms and integrating AI solutions for better data management.

Posted 6/15/2026full-timeRemote • 🇺🇦 UkraineSeniorWebsite

Tech Stack

Tools & technologies

Distributed SystemsJavaKafkaMicroservicesRabbitMQSQL

About the role

Key responsibilities & impact

Advising on technical direction and architectural decisions
Evaluating scalability, maintainability, and performance of the existing platform
Performing code reviews and providing technical mentorship
Collaborating with leadership on technical strategy and roadmap planning
Assessing modernization opportunities, including potential migration from a monolith to microservices
Supporting the adoption of AI-based tools and solutions for data management
Helping ensure engineering efforts are aligned with business priorities and product goals

Requirements

What you’ll need

8+ years of hands-on Java development experience
Strong software architecture and system design skills
Experience with distributed systems and messaging technologies (RabbitMQ, Kafka, or similar)
Strong understanding of scalability, reliability, and performance optimization
Solid SQL and database design experience
Experience using AI agents and AI-assisted development tools in the coding process (e.g. Claude Code, GitHub Copilot, ChatGPT, Gemini)
Ability to work independently and make strategic technical decisions
Experience conducting code reviews and mentoring engineers
Excellent communication and stakeholder management skills
Strong spoken and written English
Nice to Have
Experience with monolith-to-microservices transformations
Experience with AI-assisted development tools and AI-based solutions
Experience working in healthcare, SaaS, or data-driven product environments
Previous Tech Lead or Staff Engineer experience

Benefits

Comp & perks

Market competitive salary
Small but highly skilled, technically savvy and passionate team
Open, honest and inclusive culture
Unlimited vacations and sick days
Benefits&perks

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Hard Skills & Tools

Javasoftware architecturesystem designdistributed systemsmessaging technologiesSQLdatabase designAI-assisted development toolsperformance optimizationmicroservices

Soft Skills

technical mentorshipstrategic decision makingcommunicationstakeholder managementindependence