Senior Full Stack Engineer (Angular 50% + Java/Kotlin 50%)

We’re building Halo — a data-heavy platform with AI-powered features. Looking for a strong full stack engineer to take features end-to-end, front to back.

Requirements

• 6+ years in full stack development
• Angular + TypeScript
• Java / Kotlin, Spring
• PostgreSQL (or other SQL databases)
• ClickHouse or other columnar / analytical databases
• Comfortable working in and extending existing/legacy code
• English B2+

Will be a plus

• Snowflake, Kafka
• AG Grid, complex data tables
• Experience with AI service integrations

Responsibilities

• Deliver customer-facing features end-to-end (Angular front + Spring back)
• Build and scale backend: async data loading, batch processing, APIs
• Design and maintain services on PostgreSQL and ClickHouse
• Develop UI: dashboards, data grids, search, case views
• Cover code with tests, keep quality high, minimal regressions

Working Conditions

• B2B cooperation
• European time zone, schedule 10:00–19:00 or 9:30–18:30
• Equipment provided by the company
• Long-term contract