Senior Software Engineer BE (Go, Node.js)

About the Position

We are looking for a Senior Software Engineer to work on the project of our Client who provides a range of media and advertising services, including a proprietary ad server, a media planning tool, and stoppable advertising, among others. The Client is a media-tech company specializing in video streaming and digital advertising. The project focuses on video streaming and digital advertising, specifically Server-Side Ad Insertion (SSAI). The product is a platform that enables personalized ads to be dynamically inserted into live and on-demand video streams while maintaining a smooth, TV-like viewing experience.

As a Senior Software Engineer, you’ll be a hands-on contributor within the team working on development and deployment of components for a rewrite of the server-side ad-insertion SaaS solution in the Go programming language.

Responsibilities

• Develop and maintain back-end services using the Go programming language
• Implement new features and integrations for media-/streaming-related products
• Work with REST APIs, gRPC, and Protobuf
• Develop and maintain microservices and distributed back-end components
• Write unit and integration tests and participate in code reviews
• Troubleshoot Production issues and improve application stability and performance
• Optimize services for high-load and low-latency environments
• Work with databases and caching solutions such as MongoDB and Redis
• Containerize applications using Docker and deploy them in Kubernetes environments
• Contribute to CI/CD pipelines and development automation
• Collaborate with other Software Engineers, DevOps Engineers, and product/technical teams

Requirements

• 4+ years of professional software development experience
• Good commercial experience with the Go programming language and willingness to use it as part of day-to-day development
• Experience with Node.js and JavaScript/TypeScript
• Solid understanding of back-end development and the microservices architecture
• Experience in building and consuming REST APIs
• Familiarity with Docker and Kubernetes
• Experience with Git and CI/CD practices
• Experience with SQL or NoSQL databases
• Understanding of automated testing and software development best practices
• Good debugging and problem-solving skills
• English level – Upper-Intermediate or higher

Nice to Have

• Experience with video streaming technologies such as HLS, DASH, or CMAF
• Knowledge of SSAI (Server-Side Ad Insertion) or ad-tech
• Experience with FFmpeg
• Knowledge of gRPC/Protobuf
• Skills with Redis and MongoDB
• Experience with GCP
• Experience with Terraform/Helm
• Ability to utilize GitLab CI
• Experience with high-throughput, real-time, or low-latency systems

We Offer

• Remote-first work model with flexible working hours (we provide all equipment)
• Comfortable and fully equipped offices in Lviv and Rzeszów
• Competitive compensation with regular performance reviews
• Referral Bonus Program
• 18 paid vacation days per year
• 12 days of paid sick leave per year
• Extra paid leave (blood donation, marriage, childbirth, etc.)
• Health & wellness support: either a monthly budget for medical insurance and sports activities, or a full medical insurance plan, depending on your cooperation model
• Mental Health Program – company-covered psychologist consultations, with an annual coverage limit
• English, German, and Polish language courses and Speaking Clubs
• Corporate merch gifts for your special dates
• Corporate subscription to learning platforms, regular meetups and webinars
• Friendly team that values accountability, innovation, teamwork, and customer satisfaction
• Maternity leave
• Inclusive environment where everyone feels valued and treated equally. We proudly partner with VeteranHub to support Ukrainian veterans
• We are committed to supporting Ukraine and actively participate in charity initiatives

About the Company

Read About Us

You May Also Be Interested In

Poland

Middle QA Engineer (Manual & Automation)

Full-time

On-site

Poland

Strong Middle Automation/Manual QA Engineer

Full-time

On-site

Apply For This Job

Please fill in your contact information and upload your resume in the form below.

This is a required field

This is a required field

This is a required field

This is a required field

The telephone number is invalid

This is a required field

Upload CV *

• I have read and accepted the Terms & Conditions and Privacy Policy