Senior Distributed Systems Engineer (Rust, Go)

Ukraine · Full-time · Senior

About The Company

MWDN is a global IT outstaffing company with 23+ years of experience that connects exceptional tech talent with leading companies across Israel, the USA, Great Britain, and Western Europe. We offer opportunities to work on international products in a stable and professional environment.

Why does MWDN rock?

Here’s what you can expect when you join MWDN:

Security: We carefully vet our clients to minimize risks and ensure reliability and timely payments - no fraud or unpleasant surprises.
Career support: If a project isn’t the right fit, we support you and actively help find new opportunities that match your skills and career goals.
Legal assistance: We provide guidance on legal matters, including opening and managing your independent contractor or sole proprietorship status, taxes, and related processes.
Professional development: We offer English courses and professional growth opportunities, as well as team-building events.

Why choose us? MWDN is ranked among the top 5 IT employers in our region according to DOU. We take pride in our transparency and strong commitment to our team. Curious to learn more? See what our employees say about working with us on DOU.

What is your new project?

Domain: AI Infrastructure / Real-Time Data Processing

Client Location: Israel

Company size: 10 - 51

A fast-growing product company building next-generation infrastructure for production AI systems. The team is focused on high-performance, low-latency distributed technologies that operate directly within real-time data flows and AI workloads. The product addresses complex engineering challenges related to runtime reliability, distributed processing, networking, observability, and large-scale system performance.

What makes this project exciting?

We are looking for a Senior Distributed Systems Engineer to join a team building a high-performance runtime platform operating close to customer data sources and real-time production environments. The role is focused on designing and developing low-latency distributed infrastructure responsible for stream ingestion, runtime buffering, ordering guarantees, transport-layer communication, flow control, request correlation, and reliable data delivery across distributed systems.

This position involves solving complex engineering challenges around networking, concurrency, distributed runtime coordination, and performance-sensitive infrastructure. The ideal candidate has hands-on experience building and operating production-grade runtime or infrastructure systems, particularly in environments involving streaming, transport protocols, buffering, scalability, and reliability at scale.

What makes you a great fit

10+ years of professional software engineering experience
5+ years of production Go experience
Strong production Rust experience (4+ years preferred)
Proven experience building high-performance distributed systems
Strong experience with concurrency-heavy systems
Deep understanding of networking fundamentals and transport protocols
Experience building production runtime or infrastructure systems
Strong understanding of distributed system failure modes and recovery behavior
Experience with asynchronous and event-driven architectures
Experience designing systems with strong reliability and correctness guarantees
Experience working with Linux-based production systems
Strong ownership mindset and production responsibility
Ability to work independently in a fast-moving early-stage environment

Strong debugging skills across:

networking
concurrency/runtime behavior
distributed systems
Linux production environments

Strong observability experience, including:

structured logging
metrics design ○
distributed tracing
runtime diagnostics

Strong Advantage

Experience with C++
Experience with QUIC
Experience building high-throughput networking systems
Experience with stream-oriented runtime systems
Experience with buffering, flow control, and ordering guarantees
Experience building proxies, gateways, or source-side agents
Experience with low-latency or performance-sensitive systems
Experience with gRPC, HTTP/2, TCP, or custom transport protocols
Experience with Linux systems internals and performance profiling
Experience building customer-deployed software
Familiarity with observability stacks such as: OpenTelemetry, Prometheus, Grafana, Tempo, ClickHouse
Background in systems programming or performance-oriented infrastructure development

Your day-to-day in this position

Design and build core runtime components in Go and Rust
Develop high-performance stream processing and buffering systems
Build and optimize QUIC-based communication layers
Design concurrency-safe runtime components and stream lifecycle management
Implement runtime reliability, reconnect behavior, ordering guarantees, and backpressure handling
Design internal transport contracts and communication protocols
Improve throughput, memory efficiency, latency, and runtime scalability
Build production-grade observability into the runtime (metrics, traces, structured logs)
Debug complex distributed runtime and networking issues
Troubleshoot production systems operating in customer environments
Participate in architecture decisions across runtime and transport layers
Work closely with platform and architecture leadership on long-term runtime evolution
Own systems end-to-end: design, implementation, debugging, reliability, and operational behavior

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 pluse all national holidays)
10 paid recovery days
Full financial and legal support for independent contractors
Free English classes, with native speakers or Ukrainian teachers
Dedicated HR support

Our next steps

✅ Intro call with a Recruiter — ✅ Intro with the client — ✅ Tech interview — ✅ Final client interview— ✅ Offer