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Senior Software Engineer, Backend

Job Overview

Location

Sofia Office

Job Type

Full-time

Category

Software Engineer

Date Posted

May 21, 2026

Full Job Description

đź“‹ Description

  • • Design and develop highly scalable and resilient web applications using TypeScript, Node.js, and/or React to support global collaboration on massive data sets.
  • • Collaborate with cross-functional teams to deliver seamless, high-performance features that enable real-time file access and collaboration across distributed teams.
  • • Challenge technical decisions and contribute to the architectural evolution of a product with no direct equivalent in the market.
  • • Enhance and maintain automation and CI/CD pipelines to ensure consistent product quality, rapid deployment, and system reliability.
  • • Troubleshoot and analyze complex usage scenarios and performance issues across cloud-based distributed systems handling over one billion customer files.
  • • Work within a tight-knit engineering team of 230+ builders, applying agile development methodologies and adhering to software engineering best practices including automated testing, code reviews, and test-driven development.
  • • Build and extend RESTful APIs and microservices that power the core functionality of LucidLink’s cloud-based storage platform.
  • • Participate in the full software development lifecycle, from requirements analysis and design to deployment and post-launch monitoring.
  • • Leverage deep knowledge of web application architecture to create secure, efficient, and maintainable backend systems that work across all major platforms.
  • • Contribute to the improvement of development workflows, tooling, and infrastructure to accelerate delivery without compromising quality.
  • • Engage in technical discussions to evaluate and adopt new technologies that align with the company’s mission of making data instantly and securely accessible from anywhere.
  • • Work in a hybrid environment with an engineering office in Sofia, Bulgaria, collaborating with global teams across North America, Europe, and Australia.
  • • Apply strong fundamentals in software development to solve high-stakes problems in data-intensive industries such as Media & Entertainment, including workflows used by customers like Netflix, Warner Brothers, and Epic Games.
  • • Maintain and improve system resilience and scalability under heavy workloads and high concurrency demands inherent to large-scale file sharing and real-time collaboration.
  • • Document technical designs, processes, and decisions to ensure knowledge sharing and continuity within the engineering team.
  • • Actively contribute to a values-led culture grounded in integrity, innovation, and empathy, where personal and professional growth are prioritized.
  • • Participate in the interview process by reviewing take-home tasks and providing feedback on candidate solutions to uphold engineering standards.
  • • Support the growth of a fast-moving startup on a path toward unicorn status, where individual contributions have immediate and exponential impact.

🎯 Requirements

  • • 5–8 years of professional experience in software development
  • • Strong knowledge of TypeScript, JavaScript, and frameworks such as React or Node.js
  • • Solid understanding of web application architecture, RESTful APIs, and microservices
  • • Experience with automated testing, code reviews, and continuous integration/delivery
  • • Familiarity with cloud platforms (AWS, GCP, or Azure) and distributed systems
  • • Fluency in English, both written and spoken

🏖️ Benefits

  • • Competitive salary
  • • Stock options
  • • Full health coverage
  • • Flexible PTO
  • • Opportunities for professional growth in a hypergrowth startup environment
  • • Immediate impact on a globally used product with major industry clients

Skills & Technologies

JavaScript
TypeScript
React
Node.js
AWS
Backend
Senior
Remote

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LucidLink Corporation
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About LucidLink Corporation

LucidLink Corporation provides cloud-native file services that enable real-time collaboration on large media assets and other data-intensive workloads. Its Filespaces platform streams file data on demand, eliminating the need for full downloads and local storage. Designed for creative teams, post-production studios, and distributed enterprises, the solution integrates with standard file systems, supports object storage back ends, and enforces end-to-end encryption. By treating cloud or on-premises object storage as primary storage, LucidLink reduces sync delays, accelerates remote workflows, and maintains POSIX compatibility across Windows, macOS, and Linux endpoints.

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