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June 12, 2026

Software Engineer

Mid • Remote

47,300 - 64,500 EUR

Warsaw, Poland

THE CLIENT

Our client is a fast-growing cybersecurity product company rethinking how teams manage and share sensitive access. Their platform is trusted by 40,000+ organisations across 50+ countries - and growing fast. This is an engineering-led business: modern architecture, real technical challenges, and a strong focus on open source, privacy, and security. They’re building a fully remote, collaborative team and looking for engineers who take ownership and enjoy solving meaningful problems. If you want to work on a product with real impact at global scale - this is worth a conversation.

THE ROLE:

Our client is looking for a software engineer to join its Client team and help build the applications through which users experience the product, including browser extensions, desktop applications, command-line tools and SDKs.

This is not a typical frontend role. Because their product is built around end-to-end encryption and a zero-trust model, their client applications carry significant responsibility for security, data handling and product behaviour. The role sits at the intersection of client engineering, product thinking, usability and security-sensitive application design.

You would work on features used by a large open-source community, contributing across the full lifecycle: understanding the problem, shaping the approach, implementing the solution, testing it thoroughly and improving it over time. This role will suit someone who enjoys solving complex product problems, keeping solutions simple, and working in an environment where quality, openness and collaboration matter.

RESPONSIBILITIES:

  • Build and improve client applications across browser, desktop and adjacent client surfaces

  • Translate product and user needs into secure, usable client-side solutions

  • Implement and maintain business logic, local data handling and security-sensitive workflows on the client side

  • Contribute to testing strategy across unit, integration and end-to-end levels

  • Work closely with product, design and engineering peers to refine solutions before implementation

  • Help improve code quality, performance, maintainability and documentation

  • Contribute to open-source collaboration with the community where relevant

CORE REQUIREMENTS

  • 3+ years of experience building JavaScript applications in production

  • Strong client-side engineering fundamentals with React or a similar framework

  • Ability to break down complex problems and design simple, robust solutions

  • Good testing habits and attention to quality

  • Comfort working across product, engineering and implementation questions - not just coding tickets

  • Strong collaboration skills, openness to feedback, and a low-ego working style

  • Interest in security, privacy, or building trustworthy software systems

NICE TO HAVE

  • Experience building browser extensions, desktop applications or other multi-platform clients

  • Experience with security-sensitive applications, client-side cryptography or zero-trust architectures

  • Experience with design systems, Storybook or usability-focused product development

  • Open-source contribution experience

  • Experience maintaining long-lived software products

  • Familiarity with other languages such as Go, Swift, C#, PHP, Python or Rust

Tools and technologies you’ll work with: JavaScript, React, HTML/CSS, Storybook, Jest, WebdriverIO, OpenPGP-related tooling, Git and Docker across Windows, macOS and Linux environments. (We do not expect candidates to bring experience with every tool listed here)

How you work

  • You take ownership of problems, not just tasks

  • You value simplicity and avoid over-engineering

  • You work well in an environment where feedback is frequent and constructive

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Hybrid

Pune, MH, India

🏢 Summary: The role involves designing, developing, and maintaining scalable cloud-based frontend applications with strong emphasis on architecture, performance, and security. It focuses on building reusable UI components, applying DevSecOps practices, and ensuring high-quality, observable, and reliable software delivery. The engineer collaborates across teams while contributing to architectural decisions and continuous improvement of development standards. 🗂️ Requirements: Bachelor's degree in Computer Science, Software Engineering or equivalent experience, 5+ years of professional software development experience, Strong proficiency in JavaScript and TypeScript, Experience with modern frontend frameworks (React, Angular, or Vue), Strong knowledge of HTML5, CSS3, browser APIs, and web security (XSS, CSP), Understanding of accessibility standards (WCAG), Familiarity with cloud deployment concepts (preferably Azure), Solid understanding of data structures, algorithms, and software design principles, Experience with relational or NoSQL databases, Experience with Git-based version control systems, Experience with Docker and Kubernetes, Experience with CI/CD pipelines and GitHub Actions, Knowledge of DevSecOps practices, Experience with CSS architecture and design tokens, Fluent English 📃 Skills: JavaScript, TypeScript, React, Angular, Vue, HTML5, CSS3, WCAG, Azure, MSSQL, MySQL, MongoDB, Cassandra, CosmosDB, GitHub, GitLab, Docker, Kubernetes, CI/CD, GitHubActions, DevSecOps, Scrum, Kanban 🏢 Description: Summary The Software Engineer role plays a critical part in enhancing software solutions that align with user and business demands by designing, developing, and maintaining applications throughout their lifecycle. Main Responsibilities: Design, develop, test, deploy, and maintain robust, scalable, and high-performance software applications using cloud components. Develop reusable UI components and frontend architecture (design systems, state management, routing, bundling). Write clean, efficient, and well-documented code following best practices. Collaborate with product managers, UX/UI designers, and other engineers to define, design, and ship new features. Debug and resolve technical issues, ensuring optimal application performance and reliability. Contribute to architectural discussions and decisions, helping to shape the future of our technical stack. Stay up-to-date with emerging technologies and industry trends, continuously seeking to improve our development processes and tools. Participate in code reviews, technical documentation, and continuous improvement of engineering standards. Apply DevSecOps practices: dependency management, vulnerability scanning, secrets handling, and secure coding. Establish observability for frontend applications (real-user monitoring, client-side logging, error tracking, performance monitoring). Key Requirements: Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience. 5 years of professional experience in software development (3+ years for mid-level, 5+ for senior). Strong proficiency in JavaScript/TypeScript and modern frontend frameworks (React, Angular, or Vue). Strong understanding of web fundamentals: HTML5, CSS3, browser APIs, security basics (XSS, CSP), accessibility (WCAG). Familiarity with cloud deployment concepts (preferably Azure) and environment configuration. Solid understanding of data structures, algorithms, and software design principles. Experience with relational and/or NoSQL databases (e.g., MSSQL, MySQL, MongoDB, Cassandra, Cosmos DB). Experience with version control systems (e.g., Github, GitLab). Strong problem-solving skills and the ability to troubleshoot complex issues. Excellent communication and interpersonal skills, with the ability to work effectively in a team environment. Ability to work independently and manage multiple priorities. Experience with Docker and Kubernetes. Familiarity with CI/CD pipelines, Github actions/workflow. Experience with agile development methodologies (Scrum, Kanban). Proficiency with Agentic IDEs and experience with "Agent in the loop" workflows. Proficiency with design tokens, mastery of CSS architecture (CSS Modules, Type-safe CSS), and ability to implement designs consistently across different frontend stacks. Nice to Have: Advanced knowledge of design systems and UI/UX principles. Experience with cross-browser compatibility testing. Familiarity with performance optimization techniques for web applications. Other Details: Language Requirements: Fluent English.

Technology

iTeamly

Senior Backend Engineer

Senior

Remote

Kraków, Poland

22,500 - 26,500 PLN

🏢 Summary: Backend engineering role focused on building scalable backend services, APIs, and internal developer platforms in a fully remote environment. The position involves improving system architecture, optimizing distributed systems, and collaborating across the full software development lifecycle. The offer includes influence on technical decisions, modern technologies, and growth opportunities within an experienced engineering team. 🗂️ Requirements: 5+ years of backend software development experience, Proficiency in PHP or experience with Java, Python, Go, Knowledge of RESTful APIs and GraphQL, Experience building scalable distributed backend systems, Experience with SQL/MySQL and database optimization, Experience with automated testing and monitoring, Knowledge of debugging production systems, Familiarity with contract-driven development, English for daily technical communication 📃 Skills: PHP, Java, Python, Go, REST, GraphQL, SQL, MySQL, React, API 🏢 Description: ✅ Your responsibilities: ・Design, develop, and maintain scalable backend services and APIs for third-party integrations. Improve platform architecture, service communication, and internal developer tooling. Collaborate with Product Managers, Designers, and Engineers throughout the entire software development lifecycle. Optimize existing systems for performance, scalability, reliability, and maintainability. Drive engineering best practices, including code quality, testing, and documentation. Participate in architecture discussions and technical decision-making. Mentor engineers through code reviews, pair programming, and knowledge sharing. Continuously improve the developer experience by building reliable internal platforms and tools. 🧠 Our requirements: 5+ years of experience in backend software development. Strong proficiency in PHP (preferred) or solid experience with Java, Python, Go , or similar backend technologies. Strong understanding of RESTful APIs , GraphQL , and API design best practices. Experience designing and building scalable, distributed backend systems. Hands-on experience with SQL/MySQL databases and database optimization. Experience with automated testing, observability, monitoring, and debugging production systems. Familiarity with contract-driven development and modern software development practices. Basic knowledge of frontend technologies such as React is a plus. Strong communication skills and the ability to collaborate across cross-functional teams. Passion for writing clean, maintainable, and high-quality code or AI automation English at a level allowing daily technical communication 🌟 What we offer: 100% remote work. Private healthcare and Multisport. Life insurance. Real influence on technical decisions and system architecture. Opportunity to build scalable backend services and developer platforms. Work with modern technologies in a collaborative engineering environment. Knowledge sharing, mentorship, and professional growth opportunities. Friendly, supportive, and experienced engineering team.