23.06.2026 | Pełny etat | Poznań | UpsideUnderstanding of monoliths, microservices, and messaging patterns. Databases Expert knowledge of PostgreSQL and performance optimization at scale. Infrastructure Practical experience with CI/CD, Docker, and AWS/GCP. Mindset Proactive, technology-driven, and ready to experiment. AI-Native You use tools like
Zobacz później23.06.2026 | Pełny etat | Rzeszów | UpsideEngineering Standards Advocate for code quality, security, and performance across the entire repo. Continuous Improvement Constantly evaluate new tech (especially AI/LLM) to improve delivery. Requirements Experience 5 years of building complex web applications. Backend Strong proficiency in Python or Ruby
Zobacz później23.06.2026 | Pełny etat | Łódź | EPAM SystemsCloud platforms like AWS, Azure, or GCP Experience with HashiCorp tools such as Vault, Consul, and Nomad Development experience with programming languages such as Java, C+, Python, Ruby, or Perl Experience with parallel filesystems like Weka, GPFS, or Lustre We offer We gather like-minded people
Zobacz później23.06.2026 | Pełny etat | Kraków | Housecall ProWith Ruby - Rails, event-driven architectures, MySQL at scale, or previous work on an internal platform or infrastructure team This position requires fluency in both Polish and English How we work You’ll join a small and senior squad focused on cross-cutting search concerns, working closely with Product
Zobacz później23.06.2026 | Pełny etat | Poznań | RemodevsStandards, and support other engineers. You will work closely with leadership to shape our technical direction while still writing code. Our Tech Stack Ruby 3.3.8 & Rails 7.2 PostgreSQL & Redis React (frontend) Kafka, Elasticsearch, Kubernetes (K8s) What you will do Drive technical work Help turn high
Zobacz później23.06.2026 | Pełny etat | Kraków | Opendoor Labs Inc.Ruby, Python, C/C+) 4 years of experience contributing to architecture and design of new and concurrent, low latency systems (including Kafka and ML pipelines) Experience with Databases (PostgreSQL, MySql), DataStores (ElasticSearch, Redis) A strong background in app performance, monitoring
Zobacz później23.06.2026 | Pełny etat | Kraków | AirHelpWith a team of 6 developers, with a tech stack that includes Typescript and Ruby. This is a hybrid role based in Kraków, Gdańsk or Warsaw. Salary - If you join us as a contractor (for specific projects) 19,000 - 25,000 PLN net VAT on B2B contract - If you join us as a full-time employee 16,500 - 22,500 PLN
Zobacz później23.06.2026 | Pełny etat | Poznań | AccentureCERT, or other static code analysis standards. Experience with a scripting language. Experience with Ruby, Python, and PyTest. Knowledge of functional safety and security standards. Research indicates that some candidates, especially the most diverse ones, may hesitate to apply for positions
Zobacz później23.06.2026 | Pełny etat | Kraków | DataFeedWatchStakeholders Comfort using AI tools as a natural part of daily engineering work Nice to have Ruby scripting experience Experience in e-commerce, ad tech, or feed management platforms Prior work in a scale-up or fast-growth environment where infrastructure evolves quickly WHAT SUCCESS LOOKS LIKE At 3 months
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