👨🏻‍💻 postech.work

Backend Engineer (Execution & Algo Systems)

Posley Capital • 🌐 In Person

In Person Posted 10 hours ago

Job Description

About Us

We are a crypto-native quant team, building and operating internal trading systems that span both

on-chain and off-chain

markets. Our work focuses on

proprietary trading strategies

,

fund operations

, and

risk management

, designed specifically for the evolving digital asset landscape.

We're a focused team of

20–30 people

, operating across engineering, research, and operations. We move fast, think critically, and build with intent. If you're excited to work at the core of

crypto, trading, and infrastructure

, this is where meaningful impact happens.

About the Role

Work with a senior engineer to build reliable cross-exchange liquidity movement (off-chain/on-chain) and grow into low-latency order placement. You’ll convert designs into clean, tested code and learn production reliability practices.

What You’ll Do

Implement

routing algorithms

for cross-exchange transfers with failover, retries, and idempotency.

Improve

latency, throughput, and error handling

in capital movement pipelines.

Extend the stack to

low-latency order entry

: session management, rate-limit awareness, and smart routing.

Build monitoring \& alerts with clear

SLOs

for success rate and latency.

Collaborate on runbooks, testing, and incremental rollouts.

Must-Haves

0–2 years backend experience in

TypeScript/Node, Python, Go, or Rust

.

Strong grasp of

async/concurrency

, networking (HTTP/WebSocket), and resilience patterns.

Care for code quality; willingness to learn quickly and own small services.

Nice to Have

Worked with

exchange or blockchain APIs

.

Familiarity with

routing/ordering logic

and latency-aware systems.

Reliability patterns (circuit breaker, backoff, dedupe) and event-driven design.

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