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01.05.2026 | Pełny etat | Wysokie Mazowieckie | TechTreeAnd make hard trade-offs when reality demands it. You'll own the visual language of a product used by people who care deeply about learning and research. The expectation is high - you define what good looks like, and you hold that bar as the product grows. WHAT YOU'LL WORK ON Core product journeys Own end

01.05.2026 | Pełny etat | Wysokie Mazowieckie | TechTreeAnd the bar is high. If the work you produce is good, people inside and outside the company will notice - and start copying your ads. WHAT YOU'LL WORK ON Creative briefing Write detailed, opinionated creative briefs for every asset - paid ads, organic videos, landing pages, case studies. Define the concept

02.05.2026 | Pełny etat | Wrocław | TechTreeYou'll build and maintain. Engineering standards Set the bar for writing, communication, and system design across the team. Your influence will shape how a modern AI-native product is built. WHAT WE LOOK FOR 5-10 years of backend engineering experience A strong track record designing, building

02.05.2026 | Pełny etat | Łódź | TechTreeExpertise with strategic influence over how AI systems are architected, deployed, and operated across client environments. You'll act as one of the most senior technical voices in the Data Science and AI Engineering team - shaping architecture decisions, setting the bar for engineering practices, advising

02.05.2026 | Pełny etat | Wysokie Mazowieckie | TechTreeWith an engineer on a tricky pipeline problem. WHAT YOU'LL WORK ON Team leadership and mentorship Lead and mentor a team of data engineers, promoting collaboration, knowledge sharing, and professional growth. Set the standard for engineering quality and hold the bar consistently. Architecture and pipeline design

01.05.2026 | Pełny etat | Poznań | TechTreeYOU'LL WORK ON Technical leadership across use cases Own end-to-end delivery of classification and forecasting projects - from problem framing and data preparation through model development, evaluation, and deployment support. Set the technical direction and hold the bar on quality. Data exploration

01.05.2026 | Pełny etat | Kraków | TechTreeYOU'LL WORK ON Technical leadership across use cases Own end-to-end delivery of classification and forecasting projects - from problem framing and data preparation through model development, evaluation, and deployment support. Set the technical direction and hold the bar on quality. Data exploration

01.05.2026 | Pełny etat | Gdańsk (Gdańsk) | TechTreeYOU'LL WORK ON Technical leadership across use cases Own end-to-end delivery of classification and forecasting projects - from problem framing and data preparation through model development, evaluation, and deployment support. Set the technical direction and hold the bar on quality. Data exploration

01.05.2026 | Pełny etat | Katowice | TechTreeWith an engineer on a tricky pipeline problem. WHAT YOU'LL WORK ON Team leadership and mentorship Lead and mentor a team of data engineers, promoting collaboration, knowledge sharing, and professional growth. Set the standard for engineering quality and hold the bar consistently. Architecture and pipeline design