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Founding AI Engineer
TechTree's client
Warsaw
Python (async/FastAPI)Kafka/streaming patternsprotobuf/schemasPostgres/RedisCI/CDTerraformRAG (Retrieval-Augmented Generation)AWSmodel inferencestreaming flowsAPIsobservabilityevaluation for AI featuressecurity mindset (authN/Zsecretsleast-privilege IAM)playbooks/runbooks
Product Engineer
TechTree's client
Warsaw · Europe (remote)
React
Product Designer
TechTree's client- Seed
Poland (remote)
Ability to design interfaces and visualize concepts clearlyAbility to build prototypes using modern tools, including AI-supported workflowsComfort running tests, feedback loops, and iterative validation processesAnalytical mindset and ability to work with product or behavioral dataStrong communication skills and ability to work across product, design, and business teams
[TEST] Hidden from TPs - Product Designer (job bundle check)
TechTree's client- Seed
Poland (remote)
Ability to design interfaces and visualize concepts clearlyAbility to build prototypes using modern tools, including AI-supported workflowsComfort running tests, feedback loops, and iterative validation processesAnalytical mindset and ability to work with product or behavioral dataStrong communication skills and ability to work across product, design, and business teams
Senior Frontend Developer
TechTree's client
San Francisco, CA
TypeScriptReactZustandTailwindCSSIndexedDB