Praca: app developer

We are looking for an experienced MuleSoft Developer to join our team at Sii and support a global organization recognized for its data‑driven solutions and advanced integration ecosystem. You will work on innovative MuleSoft-based applications enabling business transformation and seamless connectivity across systems. This is a long‑term project delivered...

18,000 — 25,000 PLN + VAT We’re a well-knit digital design studio working with products, brands and (no-)code. Founders come to us because we help them define, build and scale their MVPs. That means we gotta think beyond “u mnie działa” (though we love all the memes). You’re free to do the job your way, but the team is there for you....

OneRail is a technology company innovating solutions for multi-modal delivery. We have built and continue to develop a delivery orchestration platform that connects shippers to an extensive courier ecosystem to automate, optimize, and control the entire delivery supply chain, from the demand signal to the proof of delivery. Our OmniPoint SaaS platform...

Job description: **.NET Developer (C# / Azure)** **Internal Product Team | Cloud-Native | CI/CD | DDD** We’re growing our in-house engineering team and looking for a **.NET Developer** to help build and scale our internal cloud-based platforms. This is a hands-on role working with modern **C#, .NET Core, Azure, Web APIs, and event-driven...

Career Level: 07 Specialist Posting Date: 23 Feb 2026 **Senior .NET Developer (C# / Azure / React)** **Tech Leadership | Cloud-Native SaaS | CI/CD | Architecture Ownership** We’re scaling rapidly and looking for a **Senior .NET Developer** to play a key role in designing, building, and evolving our cloud-based SaaS platform. This is a senior,...

Career Level: 08 Career Posting Date: 23 Feb 2026 **.NET Developer (C# / Azure)** **Internal Product Team | Cloud-Native | CI/CD | DDD** We’re growing our in-house engineering team and looking for a **.NET Developer** to help build and scale our internal cloud-based platforms. This is a hands-on role working with modern **C#, .NET Core, Azure, Web...

**Senior Lead Developer (Early-Stage / UK Government-Funded Startup)** We are looking for a technical leader to join our client at the earliest stage of a UK government-funded startup. They are building a platform dedicated to gambling awareness and addiction prevention. As our first Senior Lead Developer, you will be the driving force behind the code....

ServiceNow Team at Sii provides services to customers from various industries in Europe and the United States. We specialize in improving customer platforms, optimizing and digitizing process flows, and expanding platforms used within the customer organization. Our experience spans ITSM / ITOM / ITAM / HRSD / SecOps / SPM modules. As a ServiceNow...

We are looking for a Senior Dynamics 365 CRM Developer with React to join one of the largest Microsoft Business Applications teams in Poland. In this role, you will combine deep expertise in Microsoft Dynamics 365 with strong front-end development skills in React, delivering modern, scalable CRM solutions. We manage a broad portfolio of...

We are looking for a Senior Node.js Developer to join our Digital Competency Center. With over 1500+ professionals, the unit delivers complex projects for clients from various industries, including banking & finance, life science, retail, and more. We develop modern software, cloud, digital customer experience, and e-commerce solutions, as well as provide...

**Summary:** We are seeking an experienced iOS Developer to design, develop, and maintain high-quality iOS applications in a regulated pharmaceutical environment. The role focuses on innovative mobile solutions ensuring compliance with strict regulatory standards. **Work model:** fully remote **Budget:** 40-42 euro/hour **Project start...

Intro exnaton is a startup, spun out of ETH Zurich, which offers software for renewable energy to utility companies. Our software enables energy providers to set up energy communities and smart energy tariffs in their distribution areas. Users of our software can track their energy consumption and buy renewable energy from their neighbors, which makes...

Transport is at the core of modern society. Imagine using your expertise to shape sustainable transport and infrastructure solutions for the future. If you seek to make a difference on a global scale, working with next-gen technologies and the sharpest collaborative teams, then we could be a perfect match. What you will do RTDMS – Dealer Management System...

Who are we? Founded in 2013, Housecall Pro helps home service professionals (Pros) streamline every aspect of their business. With easy-to-use tools for scheduling, dispatching, payments, and more, Housecall Pro enables Pros to save time, grow profitably, and provide best-in-class service. Housecall Pros brand portfolio includes Business Coaching by...

Backend Developer (Node.js / TypeScript / Redis) remote/b2b US East Coast overlap Rate: $40-50h We are looking for an experienced Backend Developer to join a project supporting and enhancing a live broadcast application used by TV presenters during election coverage. This is a high-impact, high-responsibility environment — the application runs live on...

technologies-expected :React NativeiOSAndroidReduxTypeScriptJavaScriptAppiumSentryabout-project :We are currently seeking a seasoned React Native Developer to join our customer.responsibilities :Your daily duties will primarily involve building and maintaining applications using React Native for both iOS and Android platforms.You will be tasked with managing...

technologies-expected :Ruby on RailsSQLNoSQLGitUnixLinuxGithub ActionsDockertechnologies-optional :AWSGoogle Cloud PlatformDigital OceanHerokuRSpecabout-project :We are looking for a Senior Ruby on Rails Developer who will join our team and help us create innovative web and mobile applications.responsibilities :Develop and maintain scalable backend services...

technologies-expected :Ruby on RailsSQLNoSQLGitUnixLinuxGithub ActionsDockertechnologies-optional :AWSGoogle Cloud PlatformDigital OceanHerokuRSpecabout-project :We are looking for a Senior Ruby on Rails Developer who will join our team and help us create innovative web and mobile applications.responsibilities :Develop and maintain scalable backend services...

technologies-expected :AndroidJavaKotlinAndroid StudioAndroid SDKDaggerHiltJenkinsGitLabGitCC++Gradleabout-project :Join a team building cutting-edge mobile solutions for digital identity verificationWe are looking for an experienced Senior Android Developer to work on enterprise-scale applications with strong security and global reach.We are developing an...

technologies-expected :React.jsNode.jsNext.jsTypeScriptPostgreSQLMySQLJestReact Testing LibraryCypressVitestPlaywrighttechnologies-optional :AWSDockerKubernetesMongoDBRedisGraphQLRabbitMQKafkaProtobufabout-project :Are you a seasoned developer who thrives at the intersection of robust backend logic and seamless frontend experiences? Do you enjoy not just...