Zeely Inc.
via Ashby
Senior Backend Developer (Node.js)
Posted 385 days ago, which is unusual. The employer's own board was still carrying it when we last read it, 1 hour ago.
This is the employer's own posting, not a copy on a job board.
What we know
Is it still open?
Confirmed still open
Last checked 2h ago — checked against the employer's own applicant tracking system, which is the company answering directly.
We re-read the employer's own applicant tracking system and the posting was still there. That is the company answering directly.
How old is it?
Posted 385d ago
The date the source published, not the day we noticed it (2025-08-25). Last seen at its source 1h ago.
Is it remote?
Marked remote on the employer's board
Their board carries a remote setting on this posting — a field they filled in, not wording we read. The location field names somewhere specific, which is usually where the team or the entity sits.
Who may apply?
Ukraine
The description states no restriction of its own. This is the source's own tag.
Pay not stated
Similar roles pay $174.8k–242.2k/yr
Middle 50% of 14 listings that do state pay — Engineering · Senior · Eastern Europe · USD/year. This employer has published no salary; this is what comparable listings we hold disclose, never converted between currencies or periods. How this is calculated.
Skills named in the ad
Recognised terms only, from a fixed vocabulary — this is what CV matching compares against.
Carried by 1 source
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ashby employer's own board first seen 11d ago · last seen 1h ago
The listing
Join Zeely AI as a Senior Backend Developer and help build one of the largest AI products for businesses. We're looking for a strong backend engineer who wants to work on high-load services, influence architectural decisions, and build systems that scale alongside a rapidly growing business.
Over the past six months, our backend team has grown to 14 engineers, and we're continuing to expand. Today, Zeely is the #1 AI product in its niche in the U.S. market, and our ambitious goal is to become a global company by 2028.
You'll be joining a strong engineering environment, working alongside former Tech Leads, Engineering Managers, and Senior Engineers who foster a high engineering standard, support each other's growth, and tackle complex technical challenges together.
Zeely AI is an AI-powered platform that helps businesses scale by creating viral UGC videos, generating ad creatives, and launching high-performing advertising campaigns across Meta and TikTok. Today, more than 1.5 million users rely on Zeely, and that number continues to grow every day.
Want to see what we're building? Check out examples of our AI-generated videos on our website and across our Instagram, X (Twitter), and LinkedIn. We highly recommend taking a look before applying—it's the best way to experience the product you'll be working on.
Your key responsibilities:
Developing and maintaining the back-end of web applications
Designing and building REST APIs
Working with PostgreSQL and Redis databases
Integrating with third-party APIs
Building and deploying applications on AWS (EC2, S3, CloudFront)
Writing unit and integration tests
Optimizing application performance
Debugging and troubleshooting issues
Writing technical documentation
Conducting code reviews
What we’re looking for:
5+ years of commercial experience with Node.js applications
1+ years of experience with microservices architecture
2+ years of hands-on work with Redis and PostgreSQL/MySQL (data modeling, indexing, caching, ORM such as Prisma/TypeORM/Drizzle ORM)
Experience with AWS
2+ years of experience with message brokers
1+ years of experience with Docker
Understanding of scalable and reliable system design principles
Experience with version control systems (Git)
Nice to have:
1+ years of experience with the NestJS framework
Experience with payment systems
Valid AWS certification
Commercial experience with high-load systems
Experience building back-end for iOS, Android, and web applications
Experience with Terraform/Pulumi
Commercial experience with AI APIs
English level: Upper-Intermediate
Why it’s exciting to work with us:
Work with cutting-edge technologies and contribute to building AI-powered tools
Join a strong A-level team that motivates you to grow and achieve more
Remote-first approach: work from anywhere, with the option to visit our offices in Warsaw and Kyiv
Paid day offs and sick leaves — we care about your work-life balance
Regular performance reviews to ensure your growth is transparent and rewarded
Financial support — consultations for private entrepreneurs from our dedicated finance team
Recruitment process: Intro call > Test Task > Technical Interview > Final Interview > Reference check > Offer
Send us your CV — we’d love to get to know you better!