Pocketbook

Required Competencies

• Full-Stack Expertise:
  • Expert in either Backend (Kotlin/Spring Boot) or Web Frontend (React/TypeScript) with Advanced skills in the other.
  • Advanced knowledge of Kotlin and Spring Boot 3.x.
  • Advanced knowledge of React (hooks, context) and TypeScript.
  • Versatility: Willingness to switch between fixing a UI bug in React, debugging a Kotlin API endpoint, and analyzing a log in Google Cloud.
• Web/Frontend:
  • Strong proficiency with React and Redux Toolkit.
  • Familiarity with modern tooling: Vite, Tailwind CSS, and Material-UI (MUI).
• Mobile (React Native):
  • Experience with React Native, Expo, MobX, and deploying to iOS/Android.
  • Intermediate experience with State Management (Redux Toolkit or MobX).
• Data:
  • Intermediate proficiency with PostgreSQL and comfortable with writing SQL queries.
  • Familiarity with database migration tools like Flyway.
• Cloud & DevOps:
  • Knowledge of Google Cloud Platform (GCP), Docker, Kubernetes, and CI/CD pipelines (GitLab CI).
  • Basic understanding of Docker and continuous deployment practices.
• Nice-to-Haves/Bonus:
  • Experience with Firebase Auth.

Experience with Bluetooth Low Energy (BLE) libraries.

Digital Content Coordinator

We are looking for a detail-oriented Digital Content Coordinator to support website content operations and AI-assisted content workflows across US and European markets.

Key Responsibilities

Prepare, format, and upload website content (product pages, landing pages, blog content)

Implement content updates based on provided guidelines and briefs

Work with AI tools (ChatGPT, Gemini, etc.) for content preparation and structuring

Manage and maintain content within CMS platforms (Shopify / Magento)

Support meta-data, tagging, and content structuring tasks

Ensure consistency and accuracy of published content

Required Skills

Experience working with CMS platforms (Shopify / Magento preferred)

Strong attention to detail

Basic understanding of content structure

Experience using AI tools

Ability to follow structured guidelines and briefs

Goal of the Role

Support scalable, accurate, and structured content production across company stores.

Must have

• Strong experience with Swift and SwiftUI
• Solid understanding of concurrency and asynchronous programming (GCD, async/await, multithreading)
• Experience working with dependency/package managers:
  • CocoaPods
  • Swift Package Manager
  • Carthage
• Experience integrating and using external custom libraries / binaries
  (e.g. OpenSSL, ICU, LibJPEG — specific libraries are not mandatory, but understanding the concept is required)
• Basic knowledge of SQL, preferably SQLite
• Confident use of Git and GitLab
• Ability to develop custom reusable UI components
• Understanding of application architecture patterns and design principles (MVC, MVVM, etc.)

Nice to have

• Knowledge of C++
• Experience working with Apple frameworks, such as:
  • WebKit
  • MetalKit
  • CoreImage
  • CoreText
  • CoreMedia
  • AVKit
  • StoreKit
  • WidgetKit
  • CoreBluetooth
• Experience with performance optimization and memory management
• Experience working on complex or high-load iOS applications

Responsibilities

• Develop and maintain iOS applications using Swift and SwiftUI
• Work with asynchronous and multithreaded code
• Integrate third-party and custom libraries
• Design and implement reusable components
• Collaborate with cross-functional teams to deliver high-quality solutions
• Participate in architectural decisions and code reviews

Required skills

• 2+ years of commercial experience in software testing
• Strong knowledge of Java
• Hands-on experience with UI test automation using Selenide
• Experience working with Selenoid (running tests in containers)
• Solid experience in API testing, including:
  • Postman
  • JMeter
  • Rest Assured
• Experience with TestNG for test execution and reporting
• Understanding of BDD principles and experience with Cucumber
• Experience with build and dependency management using Maven
• Confident use of Git (GitHub)
• Experience working with CI/CD pipelines, including:
  • GitLab CI
  • Jenkins
• Experience using IntelliJ IDEA
• Understanding of software development life cycle (SDLC) and QA processes
• Ability to analyze requirements and create clear, maintainable test cases and automated tests

Nice to have

• Experience with test strategy and test framework design
• Experience working in Agile / Scrum teams
• Basic knowledge of Docker
• Experience with performance or load testing
• Mentoring or code review experience

Responsibilities

• Design, develop, and maintain automated UI and API tests
• Integrate automated tests into CI/CD pipelines
• Analyze test results and provide clear reports on test coverage and quality
• Collaborate closely with developers, QA engineers, and product teams
• Participate in improving testing processes and tools

(!)Please note: This position is open to EU-based candidates only.

Job Description:

Middle/Senior Full-Stack Engineer

Role Type: Generalist / Execution & Support

Focus: Feature Development (Backend/Web/Mobile), Maintenance, Support

Role Summary:

We are looking for a versatile Full-Stack Engineer to handle the day-to-day development and maintenance of the Ionnyk ecosystem. You will step into a role that touches every part of our product: the mobile app used by clients, the web portals for administration/B2B, and the backend services. You will also play a crucial role in maintaining system stability and supporting our internal teams.

Key Responsibilities:

• Software Development (Full-Stack & Mobile): Develop, maintain, and implement RESTful Web Services using Kotlin and Spring Boot, leveraging JPA (Hibernate) and PostgreSQL with Flyway for database management. Build and maintain user-facing web interfaces using React, TypeScript, and Redux Toolkit. Maintain and evolve the mobile application using React Native and Expo, including handling BLE integrations for device communication. Manage third-party integrations (Stripe, HubSpot).

• DevOps & Infrastructure: Develop and maintain the GCP infrastructure, Kubernetes orchestration, and GitOps deployments via FluxCD. Assist with the integration and deployment process, demonstrating familiarity with GitLab CI/CD pipelines and Docker containerization.

• Technical Support & Tooling: Provide L2/L3 support, including analyzing bugs in the GCP console, and troubleshooting specific issues for the Customer Support team. Manage internal IT tools (Google Workspace, Slack, Scripts) to keep operations running smoothly.

• Code Quality: Adhere to best practices for code quality, testing, and continuous integration.

Required Competencies:

• Full-Stack Expertise:

• Expert in either Backend (Kotlin/Spring Boot) or Web Frontend (React/TypeScript) with Advanced skills in the other.

• Advanced knowledge of Kotlin and Spring Boot 3.x.

• Advanced knowledge of React (hooks, context) and TypeScript.

• Versatility: Willingness to switch between fixing a UI bug in React, debugging a Kotlin API endpoint, and analyzing a log in Google Cloud.

• Web/Frontend:

• Strong proficiency with React and Redux Toolkit.

• Familiarity with modern tooling: Vite, Tailwind CSS, and Material-UI (MUI).

• Mobile (React Native):

• Experience with React Native, Expo, MobX, and deploying to iOS/Android.

• Intermediate experience with State Management (Redux Toolkit or MobX).

• Data:

• Intermediate proficiency with PostgreSQL and comfortable with writing SQL queries.

• Familiarity with database migration tools like Flyway.

• Cloud & DevOps:

• Knowledge of Google Cloud Platform (GCP), Docker, Kubernetes, and CI/CD pipelines (GitLab CI).

• Basic understanding of Docker and continuous deployment practices.

• Nice-to-Haves/Bonus:

• Experience with Firebase Auth.

• Experience with Bluetooth Low Energy (BLE) libraries.

​What’s in it for you:

• ​Strategic Impact: Direct influence on the tech roadmap and the evolution of the Ionnyk ecosystem.

• ​Modern Stack: No legacy. Work with Kotlin 1.9+, Spring Boot 3.x, React, Expo, and K8s.

• ​Innovation: Build at the intersection of IoT, Art, and Cloud (E-paper & BLE technology).

• ​Infrastructure Ownership: Full autonomy over GCP infrastructure and GitOps (FluxCD) deployments.

• ​Flexibility: Remote or Hybrid work model with a focus on results, not micromanagement.

• ​Package: Competitive salary and the best hardware for your setup.