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08.07.2026 | Pełny etat | Wysokie Mazowieckie | StarburstImprovement of applications. Some of the things we look for Bachelor’s degree in Computer Science, Engineering, MIS, or equivalent practical experience. 2-5 years of experience in application security, product security, software engineering with a security focus, or a related technical role. Strong

08.07.2026 | Pełny etat | Wysokie Mazowieckie | Siepomaga.plRozwoju powoduje, że nieustannie potrzebujemy rąk do pomocy. Współpracujemy także z organizacjami pozarządowymi i propagujemy wykorzystywanie nowoczesnych technologii w prowadzeniu działalności organizacji pożytku publicznego. ⚙️TECH STACK Ruby 3.4, Rails 8.0, Grape 2.4, MySQL 8, Redis, Memcached, Solr

08.07.2026 | Pełny etat | Wysokie Mazowieckie | Housecall ProConsensus around architectural direction Experience mentoring senior engineers and helping teams uplevel their system design and API design skills Nice to have experience with Ruby - Rails, event-driven architectures, MySQL at scale, or previous work on internal platform or infrastructure teams

08.07.2026 | Pełny etat | Wysokie Mazowieckie | 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

08.07.2026 | Pełny etat | Wysokie Mazowieckie | CYFROWY POLSAT S.A.Występują dodatkowo m.In. C#, Go, Ruby, JavaScript, Objective-C). Dane - streaming Apache Big Data stack - Kafka, Flink, Spark, Druid, HBase, Hadoop; RabbitMQ. Backend - API Flask, Django, Falcon. Bazy i wyszukiwanie PostgreSQL, MongoDB, Elasticsearch. Czego oczekujemy Bardzo dobrej znajomości Pythona

08.07.2026 | Pełny etat | Wysokie Mazowieckie | Ness SolutionDatabases, and system integrations. Knowledge of DevOps practices, tools, and cloud platforms. Understanding of network protocols, system logs, cybersecurity principles, threat modeling, and incident response. Familiarity with scripting languages such as Bash, PowerShell, or Ruby. Exposure to machine

07.07.2026 | Pełny etat | Wysokie Mazowieckie | UpsideRequirements → Extensive commercial experience in building web-based application (5 years). → Experience in at least one of Upside’s backend technology stack Ruby, Python, JavaScript or the willingness to learn based on your current skills. → Experience in at least one of Upside’s frontend technology stack

07.07.2026 | Pełny etat | Wysokie Mazowieckie | DevsData LLCSenior Software Engineer (Ruby on Rails) Salary 19,000-28,000 PLN Hybrid (2 days on site) ☑️ Full-time Contract through Deel We’re looking for a Senior Software Engineer for a leading software provider in the clean-energy space, building technology that helps solar professionals design and sell

07.07.2026 | Pełny etat | Wysokie Mazowieckie | 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