Senior Fullstack Engineer, Lens

Mirantis is seeking a highly skilled and passionate Senior Fullstack Developer to create scalable software solutions that provide exceptional user experiences. As part of the Lens team, you will contribute to Lens, the leading IDE for Kubernetes developers, used by over 700,000 DevOps professionals globally. Lens is built on Electron and utilizes modern technologies such as React, TypeScript, and Node.js. The Lens Cloud backends also leverage TypeScript and Node.js, ensuring a robust and scalable infrastructure.

You will join a cross-functional team responsible for the entire software development lifecycle, from conception to deployment. As a Full Stack Developer, proficiency in both front-end and back-end coding languages, frameworks, and third-party libraries is essential. You should also be a team player with a keen eye for visual design and utility.

At Mirantis, we work with the latest tools, UI frameworks, and a wide range of cutting-edge web technologies. We seek someone eager to explore new challenges and innovate. Our tools and technologies aim to be as beautiful and user-friendly as the world's best-designed online services. Our microservice-based backend architecture emphasizes high availability and resilience to provide stable and reliable services to our customers.

Key Responsibilities Feature Development : Develop new features for Lens Desktop and Lens Cloud services, working across front-end (React, Electron) and back-end (Node.js, TypeScript) systems. (https : / / k8slens.dev / )

Implement visually appealing user interfaces ensuring high usability and consistency with the Lens brand.

End-to-End Ownership : Collaborate throughout all stages of the development lifecycle—from design and prototyping to implementation, testing, and deployment.

Maintain and optimize existing codebases, address performance bottlenecks, and enhance overall reliability.

Work closely with technical leads, product managers, and community developers to turn ideas into maintainable, robust implementations.

Coordinate with cross-functional teams for seamless integration, solving complex technical challenges.

Assist level 1 support engineers in troubleshooting and resolving technical issues.

Quality & Best Practices Uphold coding standards through thorough code reviews, automated testing, and comprehensive documentation.

Implement CI / CD pipelines, utilize error reporting and telemetry, and promote best practices for scalability, resilience, and security.

Explore and integrate new technologies, frameworks, and tools to improve product performance or developer experience.

Serve as a mentor and knowledge resource, sharing insights on best practices and emerging trends.

Community Involvement Engage with the Lens community by responding to feedback, reviewing contributions, and discussing new features.

Participate in community events or Lens user meetups to showcase updates and gather user insights.

Beneficial / Nice-to-Have Skills Explore AI / LLM capabilities to enhance Lens.

Deep understanding of HTTP(S) and protocol-level proxying.

Knowledge of cryptography and security.

Qualifications Over 5 years of software development experience, especially with full-stack web applications.

Proficiency in React, TypeScript, Node.js, and familiarity with Electron or similar frameworks.

Strong understanding of cloud-native practices—experience with Kubernetes or microservices is highly desirable.

Knowledge of architectural styles like microservices, 12-factor apps, and cloud-native development.

Proven track record in building scalable, maintainable applications in agile environments.

Expertise in RESTful API design, performance, security, and reliability.

Familiarity with LLMs and AI API integrations (e.g., OpenAI, AWS Bedrock) is beneficial.

Experience with automated testing, performance analysis, telemetry, CI / CD pipelines.

Problem-solving skills, quick learner, and passion for clean, well-designed code.

Excellent communication and teamwork skills, proactive in improving systems and user experiences.

Why Join Team Lens at Mirantis? Work with top-tier engineers, product, and design teams in a dynamic environment.

Flexible remote work within the EU or from our Helsinki hub.

Be part of a company that values user experience, community, and open-source principles.

Competitive compensation and benefits.

If you are passionate about building top-tier developer tools, we want to hear from you! Apply today!

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