Senior Software (Full-stack with FrontEnd focus) Engineer

Overview

We are looking for a skilled Full-Stack Engineer with a focus on Frontend and strong plugin experience!

Ukraine only | Full-Time | Remote | Senior role | $8,000

ABOUT COMPANY

StartupSoft is a software development company that specializes in helping startups and established businesses build scalable software solutions. Here are some main facts about the company:

  • Website: StartupSoft
  • Services: They provide full-cycle software development services, including MVP development, product design, and team augmentation.
  • Expertise: modern technologies like React, Node.js, Python, and cloud infrastructure (AWS, Google Cloud).
  • Founded: 2016
  • HQ: San Francisco, USA
  • Other Offices: Lviv and Ternopil, Ukraine
  • Size: ~150 employees
  • Services: Full-cycle software development, team augmentation
  • Focus: Startups and scaling businesses across industries (healthcare, fintech, e-commerce)
  • Clients: WeStrive, NoiseAware, Madefire, Flamingo, RxDefine, Timeslot.

ABOUT PROJECT

LottieFiles is a micro animation design company with a mobile platform that enables designers to share, test, and iterate micro animations. The company’s software platform specializes in digital art, motion graphics, web design, and app design.

The company was founded in 2018 and headquartered in San Francisco, California, United States. The platform 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.

It’s a revolutionary format that can be best described as a movement, and the company is a platform built around it. By listening to the 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: TypeScript, React, Remix, GraphQL, REST APIs, JSON, and modern state management libraries.

Team Composition: The company has over 80 employees who work remotely from all over the world.

Project Stage: Live product, fully established.

QUALIFICATIONS AND SKILLS

  • 8+ years of experience in software development, preferably working with file formats, rendering engines, or animation tools.
  • Experience in developing plugin systems and integrating with browsers.
  • Strong foundation in data structures, algorithms, and performance optimization.
  • Hands-on experience with parsing and processing binary and JSON-based file formats.
  • Proficiency in TypeScript.
  • Experience with React, Remix, GraphQL, and REST APIs.
  • Ability to work closely with designers and engineers to bridge the gap between animation and code.
  • Strong problem-solving mindset and a passion for improving creative workflows.
  • English: Upper-Intermediate level.

OUR IDEAL CANDIDATE

  • Strong Full-Stack engineer with 8+ years of wide experience, especially in Frontend.
  • Experience working with plugins.
  • Candidates only from product companies.
  • Strong algorithmic skills + theory knowledge.
  • Fluent English.
  • Soft skills: open-minded, friendly, good communicator, proactive, problem-solver.

NICE TO HAVE

  • Experience with a low-level language such as C++, Rust or Zig.
  • Familiarity with motion graphics, animation principles, or After Effects scripting (AE Expressions, ExtendScript) is a plus.

RESPONSIBILITIES

  • Build reliable, well-tested systems that can process and export high-fidelity animations.
  • Work with different products and their APIs to understand capabilities and build integrations.
  • Reverse-engineer file formats for parsing and conversion to format.
  • Develop efficient algorithms and data structures to handle complex animation data.
  • Collaborate with motion designers to understand animation intricacies and translate them into scalable code solutions.
  • Work alongside engineers across different stacks to ensure smooth creation of animations.
  • Maintain high standards of code performance and quality, documentation, and observability in production environments.

BENEFITS

  • Salary: $8,000, flexible
  • Contract: b2b partnership (Ukrainian PE)
  • Partnership: Full-time long-term
  • Fully Remote
  • Working schedule: Flexible
  • PTO: 15 vacation days + 10 sick days + bank holidays
  • Insurance: Provided
  • Probation period: 3 months
  • Additional benefits from client
  • Equipment: provided – MacBook

INTERVIEW PROCESS

  • Recruiter prescreening
  • Internal tech interview with StartupSoft (1h)
  • Client’s tech interview (1h) – Test task: mini-project (~8h over 1 week)
  • Presentation of the test task (1h)
  • Final HR interview

Interested? Let’s connect and discuss the details!

LinkedIn

Email: yuliana.rybka@sunvery.com.ua 

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