Senior Fullstack Software Engineer [JavaScript]

Lviv, Ternopil, remote
Full time

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    StartupSoft connects top Ukrainian engineers with world-class startups from Silicon Valley and EU. Our developers work directly on the product as an integral part of the startup team

    About project

    LottieFiles is a micro animation design company that features a mobile-based platform that enables designers to share, test, and iterate micro animations. Its software platform specialises in digital art, motion graphics, web design, and app design. The company was founded in 2018 and headquartered in San Francisco, California, United States.
    LottieFiles assembled one of the largest communities in our industry with over a million raving fans from over 250,000+ companies (Google, TikTok, Disney, Uber, Airbnb, and Netflix etc) who use our platform and tools every day to enhance their workflow and ship incredibly engaging content. Lottie, a revolutionary format, can be best described as a movement, and LottieFiles is a company wrapped around it. By listening to the Lottie community, we’ve created a unique set of editing, workflow, and collaboration tools that seamlessly integrate with popular design software and developer environments such as Adobe After Effects, Figma, VS Code, and others.

    Tech stack

    JavaScript and its associated frameworks, GPU, C/C++

    Team composition

    LottieFiles native platform + website

    Project stage

    Live product, fully established

    Qualifications and skills

    • Minimum 4+ years of software development experience
    • Proficiency in Node.js, TypeScript, and GraphQL
    • Proven track record with system scalability (4-5 million users)
    • Backend distributed architecture expertise
    • Cloud deployment experience (AWS, Azure, or GCP)
    • API Gateway Experience
    • Proficiency in container orchestration platforms like Kubernetes is essential
    • SEO knowledge is nice to have
    • Familiarity with design systems


    • Work with a team of technical engineers and designers who put users first
    • Build and maintain our web platform
    • Build reusable code and libraries for future use
    • Develop modular ecosystem and collaborate with other teams
    • Write clean and well-designed code
    • Follow industry best practices

    Why StartupSoft?

    • Work with top entrepreneurs and startups from Silicon Valley and EU
    • Become an integral part of the core team — be more than someone who just writes code
    • Potential to receive equity in high-growth startups
    • Contribute to well-funded products with potential to impact millions
    • Beautiful offices in the best locations with high-end amenities
    • Tight-knit team with an inclusive and transparent culture
    • Only the latest, modern technologies with no legacy code and management bureaucracy
    • Above average salary, benefits & medical insurance

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    Yuliya Tsebriy

    Yuliya Tsebriy

    Talent Acquisition Specialist