King's Choice

We’re looking for a Lead Software Engineer with a strong systems-level background to help design, build, and operate a cloud-native platform for real-time video streaming.

This role focuses on complex low-latency infrastructure: server-side video processing, transport protocols, and backend services (primarily Go), with selective use of Rust and C/C++ for performance-critical components.

Role focus: highly challenging real-time streaming infrastructure, end-to-end ownership, and production-grade workloads.

What you will do

1) Video Streaming & Media Systems

• Design, implement, and optimize real-time video streaming pipelines
• Develop custom GStreamer plugins (mandatory hands-on experience)
• Implement and maintain transport protocols: SRT, RTMP, MPEG-TS
• Work with encoding/decoding workflows and muxing/demuxing
• Optimize for low latency, high throughput, and production reliability
• Use FFmpeg where appropriate (nice to have, not required)

2) Backend & Systems Development

• Develop backend services primarily in Go
• Build performance-critical components in Rust and/or C/C++
• Build and maintain APIs and internal services supporting media orchestration
• Integrate messaging/caching/persistence: RabbitMQ, Redis, PostgreSQL (MySQL is also acceptable)

3) Cloud, DevOps & Infrastructure

• Containerize services using Docker
• Deploy and operate workloads on Kubernetes (real production experience required)
• Define and manage infrastructure via Pulumi (IaC)
• Work across AWS and GCP
• Own Linux-based deployments, debugging, and runtime operations
• Implement CI/CD pipelines and operational best practices

Requirements (must-have)

• Languages: strong experience with C/C++, Rust, Go (or the willingness and ability to learn Go quickly)
• Media & Streaming (mandatory):
  • Practical understanding of SRT, RTMP, MPEG-TS
  • Hands-on GStreamer plugin development
  • Experience with server-side video streaming systems
  • FFmpeg is a plus
• Infrastructure & Systems: Docker, Kubernetes in production, Pulumi, RabbitMQ, Redis, PostgreSQL/MySQL, Linux (strong hands-on operational experience)

• Exposure to AWS and GCP

   

Expected seniority

• 7+ years of professional software engineering experience
• Proven ownership of complex production systems
• Comfortable working across media systems + backend + infrastructure
• Strong problem-solving in low-level and distributed systems
• Clear technical communication in English
• Able to thrive in a fast-moving, growth-stage environment

We’re growing our engineering team and looking for a Senior Full-Stack Engineer who can own complex product areas, drive technical decisions, and contribute hands-on to building a high-performance payment platform.
You’ll work closely with a US-based team (Architect + Founder on the client side) and be part of a small, collaborative delivery team where communication and ownership matter as much as engineering quality.

Your impact

• Take end-to-end ownership of product features: from clarification and technical design to production delivery
• Help shape architecture and engineering practices in a platform where performance, reliability, and security are critical
• Become a key engineering partner for the US stakeholders — this role is closer to working inside a US company than a typical “outsourcing” setup

What you’ll do

• Build and ship features across the stack: Node.js/Express + React
• Design, develop, and maintain backend services and integrations using PostgreSQL and MongoDB
• Implement clean, responsive React UI components and ensure smooth FE/BE collaboration
• Own and improve REST APIs: stability, documentation, scalability, and observability
• Contribute to system design and improvements in performance, scalability, reliability, and security
• Lead complex tasks, support teammates technically, and help evolve coding standards and best practices

What we’re looking for

• 8+ years of commercial experience building web products with Node.js + React
• Strong JavaScript/TypeScript and modern web development practices
• Solid experience with REST APIs, backend services, and database integrations (PostgreSQL, MongoDB)
• Hands-on skills in performance optimization, debugging, security best practices, and scalable architecture
• Confident with Git and collaborative workflows (PRs, code reviews, branching strategies)
• Strong ownership mindset: you can move from “unclear requirements” to a shipped solution

Must-have soft skills (very important)

• Strong spoken English and comfort working daily with US stakeholders
• Ability to build relationships, communicate clearly, and proactively align expectations
• You’re not waiting for tasks — you ask questions, suggest solutions, and keep things moving

Team & collaboration

• Delivery team: 4 Developers + Project Manager
• Client side: Architect + Founder
• You’ll have direct communication and real influence on decisions and delivery

Working hours

You need to be available to work until 12:00–1:00 a.m. Kyiv time (alignment with US team)

Join the development of nuclear programs at the International Atomic Energy Agency (IAEA). You’ll contribute to web solutions used within nuclear programs, working in an enterprise setup focused on stability, accuracy, and maintainable architecture.

The role is frontend-leaning: most tasks are on the Angular side, while a dedicated Backend developer is already part of the team. The system is hosted on own servers (on-premise).

What you’ll do

• Build and maintain web-based interfaces using Angular + TypeScript.
• Develop UI components with HTML and CSS3.
• Collaborate closely with the Backend engineer and contribute to full-stack delivery when needed.
• Work with backend services built with .NET/.NET Core (C#).
• Use SQL Server 2019+ and ORM patterns in a relational database environment.
• Work in an Agile setup and manage delivery through Azure DevOps.
• Communicate confidently in English across the team and stakeholders.

Requirements

• 5+ years of commercial experience with .NET / .NET Core and C#
• 3+ years with Angular and TypeScript
• Strong skills in HTML and CSS3
• Solid understanding of relational databases and ORM frameworks, with experience in SQL Server 2019+
• Hands-on experience working in Agile teams using Azure DevOps
• Full professional proficiency in English

Nice to have

• Experience building advanced analytical software and integrating with data lakehouse / data services (e.g., Trino)
• Python and data engineering frameworks: dlt, dbt, PySpark
• Experience building reusable enterprise-level frameworks in .NET

Tech Stack

Angular, TypeScript, HTML, CSS3, .NET/.NET Core, C#, SQL Server 2019+, ORM, Azure DevOps
Plus: Trino, Python (dlt/dbt/PySpark)