Senior Software Engineer

Remote or Serbia

As a Senior Software Engineer, you will be at the core of one of the most technically demanding challenges in modern web infrastructure: optimizing how web traffic is intercepted, processed, and delivered at massive scale across an edge computing platform. You will work on a system handling tens of thousands of requests per second and tens of billions of dollars of annual e-commerce volume, alongside a small, high-caliber engineering team where every engineer owns a meaningful piece of the system.

🌸Design, build, and scale the core platform infrastructure handling high-volume web traffic at the CDN and edge computing layer

🌸Take an active technical leadership role in architecture design, technical planning, and authoring design documents with a long-term view

🌸Plan and execute gradual, methodical rollouts: define target audiences, KPIs, and success metrics before shipping significant changes

🌸Debug complex front-end behavior caused by backend platform changes across all browsers, devices, and geographies

🌸Collaborate with the data engineering team to ensure testability at scale and build the right measurement and observability framework

🌸Solve high-complexity technical problems with significant scope and ambiguity, where few established playbooks exist

🌸Mentor engineers and serve as a point of technical escalation for complex platform challenges

🌸Stay current with emerging web performance technologies, edge computing patterns, and browser optimization techniques

🌸Embrace and integrate AI coding tools into your engineering workflow to accelerate delivery and improve code quality

💦5-10 years of software engineering experience with a strong background in building and scaling high-traffic, multi-tenant web platforms

💦Expert-level proficiency in TypeScript (primary language), JavaScript (real JS, not just framework-level), and Python

💦Demonstrated experience designing and operating distributed, high-availability systems at meaningful scale

💦Cloud platform experience: AWS, GCP, or Azure (cloud agnostic environment)

💦Experience with CDN infrastructure and web performance optimization: tools such as Cloudflare, Lighthouse, WebPageTest, and techniques such as web workers, lazy loading, and code splitting

💦Infrastructure as Code experience (Pulumi or equivalent)

💦Strong SQL and data querying skills; ability to work with data warehouses and build data-driven engineering decisions

💦Experience with message queues (SQS, Kinesis, or equivalent) and CI/CD pipelines

💦Data storage: PostgreSQL, Redshift, or equivalent

💦Strong problem-solving skills and detail orientation: understands that at massive traffic scale, edge cases are not edge cases

☘️Salary: $6,000 to $8,000 USD per month

☘️PTO: 15 days

☘️Holidays: Local or US holidays

#engineer #serbia #remote

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