DCG

Python & Go Software Architect

~150 - 200 PLN/ godz./ godz.B2BB2B (netto)

SeniorZdalnie·WarszawaFull-time·B2B

#439187·Dodano miesiąc temu·2

Źródło: justjoin.it

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Tech Stack / Keywords

Go PythonSecurityNetworking

Podsumowanie oferty

The Python & Go Software Architect will work on developing applications operating in a microservices architecture, focusing on designing and developing high-performance services in Go and asynchronous Python. The role involves creating functionalities for access and permission management, processing network traffic and telemetry, and integration with various network devices and systems. Responsibilities also include maintaining and optimizing the existing codebase and cooperating on new cybersecurity functionalities.

Wymagania

Very good knowledge of Go, including the development of concurrent services, UDP/TCP servers, and high-throughput decode loops
Profiling Go applications using pprof
Very good knowledge of asynchronous Python, including asyncio, event loop, tasks, cancellation, and backpressure
Development of asynchronous HTTP clients and servers and multiprocess worker pools
Practical knowledge of networking at the L2/L3/L4 levels
Knowledge of VLANs, MAC/IP semantics, TCP flags, MTU, fragmentation, IPv4, and IPv6
Knowledge of network flow telemetry protocols: IPFIX (RFC 7011), NetFlow v5/v9, and sFlow v5
Experience with template-based decoding, sampling rates, sequence gaps, and loss handling
Experience with packet capture and crafting and pcap file analysis
Network device automation through SSH/CLI and vendor APIs, including Cisco, Arista, Juniper, and Palo Alto
Experience with idempotent configuration deployment and drift detection
Knowledge of Protocol Buffers, including schema design and evolution and code generation
Fast JSON and binary codecs for performance-critical paths
Knowledge of Kafka, including producer and consumer semantics, partitioning, acks, batching, compression, SASL/Kerberos, and lag diagnosis
Knowledge of NSQ or NATS is an additional advantage
Knowledge of columnar or time-series databases, such as ClickHouse
Performance profiling, optimization of memory allocation and GC pressure, lock contention analysis, and use of zero-copy mechanisms
Knowledge of data structures such as LPM/Patricia tries, LRU caches, and fast hashing
Load generation and sustained-throughput testing
Knowledge of Linux, including sockets, epoll, sysctl tuning, cgroups, and resource limits
Knowledge of EBPF is a strong advantage
Knowledge of containers and Kubernetes, including multi-stage builds, fast inner-loop development environments, and manifests
Experience with building self-contained packages deployed in customer infrastructure, including static/frozen builds, deb/rpm packages, and upgrade and rollback mechanisms
Knowledge of IPC patterns, for example ZeroMQ
Cache and state synchronization design, eventual consistency, reconnecting and resynchronizing after long disconnects, and idempotent event replay
Experience with static typing and quality-control tools, including mypy, golangci-lint, formatters, linters, and pre-commit gates
Experience with asynchronous unit tests, snapshot tests for decoders, and load tests in CI
Dependency and CVE management and reproducible pinned builds
Very good command of English, both spoken and written

Nice to have:

Knowledge of Windows/AD, including WinRM, SMB, and Kerberos
Knowledge of an SDK for one major cloud platform, Azure or AWS, for asset and log ingestion

Obowiązki

Development of an application operating in a microservices architecture
Design and development of high-performance services in Go and asynchronous Python
Creating and developing functionalities related to access and permission management
Development of components responsible for processing network traffic and telemetry
Integration with network devices, messaging systems, databases, and customer environments
Maintenance and further development of the existing codebase
Profiling, testing, and performance optimization of the solution
Ensuring code quality, automated testing, dependency security, and build reproducibility
Participation in the preparation of installation packages, upgrades, and rollback mechanisms
Cooperation in implementing new functionalities in the cybersecurity domain

Benefity

Private medical care
Co-financing for the sports card
Constant support of dedicated consultant
Employee referral program

Opieka zdrowotna

Karta sportowa

Inne informacje

Informujemy, że administratorem danych jest DCG ul. Towarowa 28 00-839 Warszawa(dalej jako "administrator"). Masz prawo do żądania dostępu do swoich danych osobowych, ich sprostowania, usunięcia lub ograniczenia przetwarzania, prawo do wniesienia sprzeciwu wobec przetwarzania, a także prawo do przenoszenia danych oraz wniesienia skargi do organu nadzorczego. Dane osobowe przetwarzane będą w celu realizacji procesu rekrutacji. Podanie danych w zakresie wynikającym z ustawy z dnia 26 czerwca 1974 r. Kodeks pracy jest obowiązkowe. W pozostałym zakresie podanie danych jest dobrowolne. Odmowa podania danych obowiązkowych może skutkować brakiem możliwości przeprowadzenia procesu rekrutacji. Administrator przetwarza dane obowiązkowe na podstawie ciążącego na nim obowiązku prawnego, zaś w zakresie danych dodatkowych podstawą przetwarzania jest zgoda. Dane osobowe będą przetwarzane do czasu zakończenia postępowania rekrutacyjnego i przez okres możliwości dochodzenia ewentualnych roszczeń, a w przypadku wyrażenia zgody na udział w przyszłych postępowaniach rekrutacyjnych - do czasu wycofania tej zgody. Zgoda na przetwarzanie danych osobowych może zostać wycofana w dowolnym momencie. Odbiorcą danych jest serwis Rocket Jobs oraz inne podmioty, którym powierzyliśmy przetwarzanie danych w związku z rekrutacją.

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