Full Stack Developer (Europe)

Summa Linguae Technologies is seeking a talented Full-Stack JavaScript Developer to join our team and contribute to building high-performing, user-friendly applications. This role focuses on leveraging modern JavaScript frameworks and tools, including React, Node.js, and related libraries, to create seamless front-end and back-end solutions. The ideal candidate is well-versed in asynchronous programming, state management, API integrations, and responsive design. If you are passionate about delivering exceptional digital experiences and thrive in a collaborative environment, we want to hear from you!

Work location and timezone: Europe - CET

Core Technical Skills

• Proficiency in JavaScript
• Understanding of asynchronous programming and event-driven architecture.
• Knowledge of RESTful APIs and (GraphQL).
• Proficiency in Node Package Manager (npm)
• Understanding of file systems, streams, and buffers.
• Strong understanding of React hooks (useState, useEffect, useReducer).
• Knowledge of Context API, or other state management tools.
• Familiarity with React Router for navigation and routing.
• Experience with component libraries.
• Proficiency in building and styling components with CSS modules, SASS, or Styled Components.
• Knowledge of server-side rendering (SSR)
• Experience with React Testing Library, Enzyme...

General Frontend Skills

• Solid grasp of HTML5, CSS3, and responsive design principles.
• Knowledge of modern CSS frameworks (e.g. Bootstrap).
• Experience with cross-browser compatibility issues and solutions.

Database Skills

• Experience with SQL databases (e.g., MySQL, SQLite).

Nice to have skills

• Experience with real-time frameworks like Socket.IO or WebSockets.
• Familiarity with security best practices (e.g., OAuth).
• Experience with performance optimization and scalability in backend applications.
• Familiarity with tools like Webpack, Babel, and ESLint.
• Understanding of progressive web applications (PWAs).
• Experience with CI/CD pipelines (e.g. GitHub Actions).
• Familiarity with containerization (Docker) and orchestration (Kubernetes).
• Knowledge of cloud platforms (Digital Ocean, AWS, Azure, Google Cloud) for deployment.
• Understanding of database performance optimization.
• Knowledge of microservices architecture.
• Understanding of AI/ML integration in applications.
• Familiar with Python and how to use it with various LLM frameworks. 
• know how to process excel, csv/tsv, json (filtering data, or converting from one format to another, or merging different files together, etc).
• xml processing (DOM and SAX), do transformations
• web scraping (selenium, beautifulsoup, or others)
• working with sqlite3
• ETL, text-2-sql
• AWS S3, boto3, EC2 & Athena
• Knowing the open source localization data formats, especially TMX and XLIFF.
• Knowing how to build data processing pipelines for localization used in the AI and data world
• Having played with all kind of LLMs
• Familiar with Snowflake or similar

Soft Skills

• Ability to collaborate in cross-functional teams using tools like JIRA, Microsoft Teams, Slack…
• Strong problem-solving skills and attention to detail.
• Excellent communication skills to explain technical concepts.
• Ability to write clean, maintainable, and well-documented code and knowing how to automate this.
• Experience working in Agile/Scrum development environments.

Goes without saying

• Good communicator (listening & speaking)
• Fluent in English – any other language is a win!
• Flexible: sometimes we will need work to be done early in the morning, late at night or in the weekend.
• Smart & open minded, responsive on feedback
• Self-employed: we work with contractors. You can work from home but you may be asked to travel if needed.
• An entrepreneurial mindset, see work, see opportunity