Zeely Inc. logo
Zeely Inc.

Zeely AI is an all-in-one AI marketing platform that helps small businesses and marketing teams grow and achieve their business goals. 4 years on the market → stable, profitable company backed by top-tier international investors; 4× growth over the past year; 1,000,000+ businesses already use Zeely (and growing fast every day); Top-3 in our category in the US market; 150+ team members; Markets: US + worldwide.

Backend Lead

Backend EngineerSoftware EngineerFull TimeRemoteLeadTeam 51-200

Location

Worldwide

Posted

32 days ago

Salary

0

Seniority

Lead

Job Description

Backend Lead

Zeely Inc.

Role Description Join us as a Backend Lead and drive the development of the backend platform behind one of the fastest-growing AI products in the US market. We are looking for a strong technical leader who combines deep expertise in high-load system architecture with hands-on experience in building and scaling engineering teams. In this role, you will have true ownership of our AI Gateway, generative pipelines, and mission-critical backend services powering a product already trusted by more than 1.5 million users. Your key responsibilities: - Lead the Backend Department, driving team growth, planning, estimations, code reviews, mentoring, and engineers' performance management - Define the architectural vision and ensure the reliability, scalability, and performance of the backend platform - Develop and evolve our AI orchestration layer across multiple models and providers, optimizing generation quality, latency, and cost efficiency - Own the evolution of the AI Gateway — the core platform component powering text, image, voice, avatar, and video generation - Scale infrastructure and backend services to support product growth and increasing workloads - Maintain high engineering standards in code quality, security, observability, and operational excellence - Deliver strategic AI initiatives, including our proprietary RAG pipeline, MCP integrations, and AI agent capabilities - Collaborate closely with Frontend, Mobile, QA, AI Engineering, and DevOps teams to achieve business goals - Partner with the Principal Engineer on infrastructure capacity planning and cost optimization Qualifications - 7+ years of commercial experience with Node.js - 3+ years of experience in a Lead, Team Lead, or Engineering Manager role with direct people management responsibilities - 3+ years of hands-on experience with NestJS - Proven experience designing and evolving microservice architectures in production environments - Deep expertise in PostgreSQL and Redis - Experience working with ORMs such as Prisma and Drizzle - Hands-on experience with AWS services, including EKS, RDS, SQS, S3, CloudWatch, and OpenSearch - Strong Docker expertise - Experience designing reliable, scalable, and observable distributed systems - Solid understanding of on-call processes and incident management practices - Upper-Intermediate English level or higher Requirements - Active AWS Architect or Developer certification (nice to have) - Experience with Terraform (nice to have) - Experience building high-load systems and optimizing cost/latency trade-offs (nice to have) - Payment systems integration experience (nice to have) - Backend development experience for mobile applications (iOS/Android) and web products (nice to have) - Experience with GCP and Cloudflare (nice to have) - Experience hiring engineers and building processes in fast-scaling organizations (nice to have) Benefits - 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!

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