April 9, 2026

Android Engineer with Java/Kotlin experience (Accessibility Product House)

Mid • Remote

Warsaw, Poland

Are you passionate about building impactful mobile solutions?

We at Sigma Software are looking for an experienced Android Engineer with strong Java/Kotlin skills to join our team and work on Android system internals. This is a Middle-level position offering the opportunity to contribute to innovative accessibility solutions used by enterprises worldwide.

You can work remotely, onsite, or in a hybrid format — we are flexible to fit your lifestyle. At Sigma Software, you will join a collaborative environment where your expertise will directly influence product quality and user experience. Why join us? We offer competitive benefits, a supportive team culture, and projects that make a real difference.

Customer

Our client is a rapidly growing technology leader in digital accessibility software. Their AI-enabled products help enterprises make web and mobile offerings accessible to everyone, saving developer time and reducing risk through proprietary discovery and analysis algorithms integrated directly into software development pipelines.

Project

The project focuses on enhancing Android system internals to deliver accessibility features for enterprise-grade applications. It involves advanced Android development, integration of AI-powered accessibility tools, and collaboration with cross-functional teams to ensure compliance with accessibility standards.

Requirements

  • 3–4 years of commercial experience in Android development (or Kotlin/Java background combined with Android experience)

  • Strong knowledge of Android SDK and platform architecture

  • Understanding of Android application lifecycle and component lifecycle

  • Familiarity with Android APIs and common design patterns

  • Strong understanding of Android UI frameworks: Jetpack Compose, XML layouts, and WebViews

  • Experience with dependency management tools (Gradle, Maven, JFrog)

  • Upper-Intermediate or higher level of spoken and written English

WILL BE A PLUS

  • Experience with accessibility features and standards

  • Experience developing and integrating SDKs

  • Familiarity with automation frameworks (Appium, Espresso)

  • CI/CD experience with platforms like CircleCI or Jenkins

  • Ensure solutions meet accessibility compliance standards

  • Participate in code reviews and contribute to architecture decisions

Personal Profile

  • Proactive attitude

  • Strong team player with a collaborative mindset

  • Independent and self-motivated learner

  • Strong problem-solving skills and attention to detail

Responsibilities

  • Conduct in-depth research into Android system internals

  • Develop and deliver high-quality, enterprise-grade features according to product requirements

  • Collaborate closely with support, product management, and other mobile teams

  • Stay up to date on mobile development trends and advancements in accessibility

  • Ensure solutions meet accessibility compliance standards

  • Participate in code reviews and contribute to architecture decisions

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Warsaw, Poland

110 - 120 PLN

🏢 Summary: Opportunity for a Regular Android Developer to build and scale high-quality mobile applications using Kotlin and modern Android technologies. The role focuses on implementing new features, ensuring performance, and maintaining high software quality through testing and solid architecture practices. The position involves leading development efforts aligned with business needs and optimal IT solutions. 🗂️ Requirements: Minimum 3 years commercial experience in Android development, Strong proficiency in Kotlin, Practical experience with Jetpack Compose, Experience with Kotlin Coroutines, Ability to work with and modify Java code, Deep understanding of Clean Code principles, Knowledge of software architecture patterns, Strong knowledge of Android platform specifics, Experience with Continuous Integration, Experience in automated, unit, and integration testing, Ability to read and communicate using technical English 📃 Skills: Kotlin, JetpackCompose, KotlinCoroutines, Java, Android, CleanCode, Architecture, CI, UnitTesting, IntegrationTesting, AutomatedTesting 🏢 Description: 🚀 Looking for your next challenge as an Android Developer? Join our team! We are seeking an experienced and dedicated Regular Android Programmer to help us build and scale high-quality mobile applications. If you know how to effectively bridge business context with modern IT solutions, this opportunity is for you! 📱 🛠️ Your Responsibilities: Implement new Android functionalities using Kotlin. Proactively monitor application performance and troubleshoot technical issues. Ensure top-tier software quality through rigorous automated and unit testing. Lead development, programming, and implementation projects based on a strong understanding of business needs and optimal IT solutions. 🎯 Requirements: Minimum 3 years of commercial experience in developing Android solutions. Deep understanding and practical knowledge of Clean Code techniques and software architecture. Excellent command of Kotlin. Strong proficiency in Jetpack Compose and Kotlin Coroutines. Ability to understand and modify existing Java code. In-depth knowledge of Android platform programming specifics. Familiarity with the Continuous Integration (CI) approach. Proven ability to create automated, unit, and integration tests. English language proficiency sufficient for reading technical documentation, conducting technical correspondence, and participating in technical discussions. ✨ Nice to Have: Hands-on experience working in an Agile environment. Familiarity with tools like Jira, Git, and Confluence. Experience or basic knowledge in the DevOps area.

Technology

Sigma Software

Back-end Developer with AI Experience

Mid

Remote

Warsaw, Poland

🏢 Summary: Remote Software Engineer role focused on building AI-powered data products and backend services for the logistics domain. The position involves integrating AI/ML models into production, developing AI-driven features such as chatbots and recommendation engines, and orchestrating AI pipelines. You will work with TypeScript/JavaScript, Node.js, and Python to deliver scalable, intelligent solutions. 🗂️ Requirements: 3–4 years of experience with TypeScript/JavaScript, Proven commercial experience with Node.js, Professional experience with Python, Hands-on experience integrating AI/ML models into production systems, Experience building backend services consuming AI outputs, Experience orchestrating AI pipelines, Experience designing chatbots or recommendation engines, Experience integrating LLMs into applications, Upper-Intermediate English level 📃 Skills: TypeScript, JavaScript, Node.js, Python, AI, ML, LLMs, React, Backend, APIs, Chatbots, Recommendation, Pipelines 🏢 Description: Are you passionate about building intelligent systems that transform industries? We are looking for a Software Engineer to join our team and work on cutting-edge AI-powered solutions in the logistics domain. This is a remote position, offering flexibility and the opportunity to collaborate with international teams. We at Sigma Software value innovation, quality, and teamwork, and provide our specialists with challenging projects and professional growth opportunities. Why join us? You will work on impactful AI-driven products, gain exposure to advanced technologies, and be part of a company that supports continuous learning and career development. Customer Our customer is one of Europe’s leading logistics providers, headquartered in Germany. They specialize in developing and implementing integrated supply chain systems, leveraging advanced data analytics to optimize logistics operations. Recognized for innovation and efficiency, they deliver solutions that enhance operational performance across diverse industries. Project The project focuses on developing advanced data products, including an AI assistant capable of performing analysis and providing insights based on user queries. The team is also building tools to support the client’s internal processes, integrating AI/ML models into production systems, and designing AI-powered features such as chatbots and recommendation engines. Requirements 3–4 years of development experience with TypeScript/JavaScript technology stack Proven experience with Node.js Experience with Python Hands-on experience integrating AI/ML models into production systems Experience building backend services that consume AI outputs and orchestrate AI pipelines Experience designing AI-powered features such as chatbots or recommendation engines Familiarity with integrating LLMs into applications Strong communication and multitasking skills Strong problem-solving and decision-making abilities with a focus on results Upper-Intermediate level of English WILL BE A PLUS: Experience with React Personal Profile Motivated, self-driven, and positive individual Strong communication skills Ability to multitask and manage priorities effectively Skilled in solving complex problems under tight deadlines Passionate about leveraging technology to deliver impactful results Responsibilities Design, develop, and maintain backend services using TypeScript/JavaScript and Node.js Integrate AI/ML models into production environments to support business processes Build and orchestrate AI pipelines that consume model outputs and deliver actionable insights Develop AI-powered features such as chatbots and recommendation engines Collaborate closely with cross-functional teams to ensure seamless integration of AI solutions into applications Participate in architectural discussions and contribute to solution design Ensure high-quality code through testing, reviews, and adherence to best practices Communicate effectively with stakeholders and team members to align on requirements and deliverables