What makes you a great fit:
5+ years building production backend systems in Python/Go
Strong AWS experience running scalable, reliable services
Proven track record optimizing servers for high load/low latency
Deep hands-on with Celery (or similar queues), task orchestration, and distributed systems fundamentals
Comfortable with Bash, Linux networking, and performance debugging (perf, eBPF, flame graphs)
Solid JavaScript/Web fundamentals (HTTP, TLS, CORS, cookies, caching, CDNs)
SQL/NoSQL experience; data modeling for large-scale reads/writes
Great communication, team player, fast learner, proactive, and willing to work hard to hit goals
At least an upper-intermediate level of English
Will be a plus:
RTB/OpenRTB, VAST/VMAP, header bidding, DSP/SSP integrations
Redis/DragonflyDB tuning, Kafka/Kinesis, ClickHouse/Redshift, Airflow
Docker/K8s, GitHub Actions, ArgoCD; zero-downtime deploys & canary/blue-green
Security/compliance in ad systems (PII, consent/TCF)
Elasticsearch/Kibana experience
Why work with us?
People-first management with minimal bureaucracy
A friendly company culture, proven by employees who choose to return
Flexible working hours
29 days of PTO (18 working days per year, plus all national holidays)
9 paid recovery days
Full financial and legal support for independent contractors
Free English classes, with native speakers or Ukrainian teachers
Dedicated HR support
Your day-to-day in this position:
Design, build, and operate high-throughput, low-latency backend services for ad delivery and analytics
Own queue-driven workloads (Celery/Redis/DragonflyDB): throughput, retries, back-pressure, idempotency
Optimize performance end-to-end: CPU/memory, networking, asyncio/concurrency, caching, schema/indexing
Productionize on AWS (EC2/EKS/Lambda, S3, RDS, ALB/NLB, IAM, elasticsearch)
Implement robust observability: metrics, tracing, structured logs, SLOs/alerts
Collaborate with product/analytics to ship features fast; run load tests and capacity plans for peak QPS
Harden systems for resiliency, cost, and security (least-privilege IAM, secrets, threat modeling)
What is your new project?
Domain: AdTech
Location: Israel
Company size: up to 10 employees
Founded in: 2021
What makes this project exciting? The domain involves cutting-edge digital advertising solutions such as real-time bidding, programmatic integrations, audience targeting, and performance optimization.
Our next steps:
✅ Intro call with a Recruiter — ✅ Intro tech interview — ✅ Technical assessment — ✅ Final client interview — ✅ Reference check — ✅ Offer
Who We Are: Website: more about us and vacancies Instagram: follow MWDN’s life Facebook: follow our FB Feel free to contact us without any hesitation!
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