Remote Senior Ruby Developer @ Mend.io
1 week ago
Requirements 6+ years of experience with the Ruby language Experience with SQL backend, preferably PostgreSQL Proficiency with Sidekiq and Capistrano Ability to take tasks from requirements to deployment quickly and independently Ability to work within distributed, multidisciplinary teams Design and build scalable, high-availability mission-critical systems and APIs Experience with test-driven development If you do not meet all the requirements but believe this position is right for you, please let us know why Advantages Understanding of what is an open-source supply chain, Experience with cybersecurity. The Company: Mend.io offers an enterprise suite of application security tools designed to help organizations build and manage a mature, proactive AppSec program. Mend.io supports both developers and security teams by giving each team different, but complementary, tools to work with—enabling them to stop chasing vulnerabilities and start proactively managing application risk. Our culture is open, inclusive, and engaging, and we work hard to foster a company where everyone feels valued. Mend is a company that lives by its values: We are passionate about excellence We see the world from the customer's perspective We are better together Part of Mend's mission is to protect companies' software supply chain. Our vision is to provide the easiest and most accurate way of adding security processes to your platform. We are looking for a Senior Ruby Engineer to join our Open Source Supply Chain team, working on our detection platform that allows the analysis of data coming from the open-source software realm. Working together, you will have a significant impact on the product shape. This role is a great opportunity for people seeking creativity and impactfulness in their work. Interview Process: Initial call HR Tech interview I - Team manager(60 min)-Introduction, technical logic questions, and questions about the candidate's experience. Tech interview II - VP R&D (1.5 h)- Questions on System design HR Interview - (1 h) Reference calls Offer Letter ,[Design, build and maintain efficient, reusable, and reliable Ruby and Ruby on Rails code, Maintain the infrastructure of the Application, including Docker/Terraform/Kubernetes, Design and develop backend solutions and APIs, Maintain and troubleshoot production applications codebase, Write implementations of algorithms and solutions designed by our Research Team, Identify opportunities for improvement in system interfaces] Requirements: SQL, Ruby, Team player, Communication skills, Problem solving, Linux, Java, C, C++, Golang, JavaScript, PostgreSQL, Docker, Sidekiq, Test-driven development Tools: GIT. Additionally: Training budget, Paid vacation on B2B.
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Senior Ruby on Rails Engineer @ N-iX
5 days ago
Remote, Krakow, Wrocław, Warsaw, Czech Republic N-iX Full timeAdvanced knowledge and experience in Ruby on Rails of at least 3 years Experience with Javascript/Typescript Experience with relational databases like PostgreSQL or MySQL Source Control: Git (Github) Automated testing and unit testing Upper-intermediate English level Nice to have: Experience with OpenSearch/ElasticSearch Experience with Stimulus and Turbo...
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Ruby on Rails Developer @ Antal
3 days ago
Remote, Warszawa, Czech Republic Antal Full timeDoświadczenie komercyjne w Ruby on Rails - min. 2 lata dla poziomu mid; kilka lat dla seniora. Znajomość narzędzi i frameworków: Grape, RSpec, Docker, MySQL, AWS, CI/CD pipelines. Doświadczenie pracy w środowisku wirtualnym/kontenerowym i DevOps. Komunikatywny angielski na poziomie min. poziom B2. Mile widziane: znajomość nginx, SemaphoreCI,...
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Remote Senior Python Developer
3 days ago
Remote, Czech Republic Netguru Full timeRequirements Strong hands-on experience in Python, ideally in backend or data-focused development. Basic to intermediate understanding of LLM frameworks (LangChain, LangGraph) or a strong motivation to learn them. Familiarity with RAG, ReAct, or multi-agent architectures is a plus. Experience with SQL and structured data formats (CSV, Parquet)....
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Senior Fullstack Developer
1 day ago
Remote, Czech Republic Netguru Full timeStrong experience in React.js and JavaScript. Proficiency in Ruby on Rails. Experience working with CI/CD pipelines. Great communication skills. Ability to cooperate in a team. Strong written and verbal communication skills, English: at least B2+ level. Description Netguru is a trusted partner in digital commerce. The company helps leading brands modernize...
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Remote Full Stack Engineer
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Remote, Kraków, Warszawa, Kyiv, Czech Republic Railsware Full timeTechnical Foundation: 5+ years building Ruby applications with deep Rails expertise Strong architectural skills—you've designed systems, not just implemented features Extensive ReactJS experience, including state management and performance optimization Hands-on experience with multiple database systems Production experience with cloud platforms (AWS, GCP,...
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Full-Stack RoR Developer @ OnTheGoSystems
2 weeks ago
Remote, Czech Republic OnTheGoSystems Full timeIndicators You're a Great Fit You have strong experience with Ruby on Rails and at least one modern JavaScript framework. You're passionate about writing clean, maintainable, and high-quality code. You have proven experience building and scaling robust systems. You thrive on solving complex challenges independently within a collaborative team environment. We...
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Senior .NET Developer
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Remote, Warszawa, Czech Republic ITDS Full timeMinimum 5 years of experience with C# and .NET technologies, preferably .NET Core 8 Knowledge of relational databases such as PostgreSQL or MS SQL Server Experience designing and developing distributed microservice systems Understanding of messaging patterns and Event-Driven Architecture Strong grasp of REST, CRUD, OOP, and Clean Code principles Practical...
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Remote Senior React Native Developer @ Big Human
2 weeks ago
Remote, Czech Republic Big Human Full timeQualifications / Requirements Expert-level React Native experience (iOS and Android) Proven experience owning code or features that reached a large user base Strong understanding of JavaScript and TypeScript (ES7+ features) Experience integrating with RESTful and GraphQL APIs Familiarity with native modules and bridging (iOS/Android) Skilled in diagnosing...
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Remote, Warszawa, Gdziekolwiek, Czech Republic SoftwareMill Full timeWHAT WE EXPECT Very good Kotlin skills and general programming knowledge Ability to write clean and testable code At least 4 years of commercial experience in developing software Understanding of different types of software architecture Ability to design with scalability and maintainability in mind Comprehensive knowledge and understanding of the industry...
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Fullstack Developer @ ITDS
5 days ago
Remote, Czech Republic ITDS Full timeYou’re ideal for this role if you have: Solid experience as a Full Stack Developer (3–5+ years for mid, 6+ for senior) Strong knowledge of TypeScript and at least one major front-end framework (Angular, React, or Vue) Willingness to work with niche technologies such as RactiveJS Practical experience with back-end development using Node.js, Python, Ruby...