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Lead Backend Developer

Warszawa, mazowieckie🌐 Remote💼 Full-time💰 $150–$180🗓 2026-03-14 → 2026-08-08

Core

Designing and maintaining distributed data processing systems and application-layer security components in a high-scalability environment.

Role type

Lead Backend Developer (Distributed Systems & Security)

Builds

Distributed data processing systems, application security components, and backend services

Domain

Cloud infrastructure, distributed systems, data streaming, application security

Deliverable

production ML models | product features | infrastructure

Required skills

Go, Python, C, Kafka, RabbitMQ, Nginx, Kubernetes, Linux kernel mechanisms (netfilter, netlink, eBPF), PostgreSQL, MongoDB, Redis, ClickHouse, Object Storage (AWS S3, Azure Blob, GCP Storage)

Preferred skills

Application security (L7 filtering, traffic blocking), Big data processing

Technologies

Kafka, RabbitMQ, Nginx, Kubernetes, AWS S3, Azure Blob, GCP Storage, PostgreSQL, MongoDB, Redis, ClickHouse

Responsibilities

Develop and maintain backend components in high-scalability environments, test, debug, and optimize existing applications, diagnose and resolve issues in running systems, create new interfaces and develop existing functionalities, analyze the impact of new features on the system, develop distributed data processing solutions

Seniority

Senior, hands-on IC with leadership responsibilities

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