# Hamed Yousefi

Hamed Yousefi is a remote worker on Himalayas, Senior Platform Engineer at Polymarket, based in United Arab Emirates.

Source: https://himalayas.app/@hamedyousefi

```text
Senior Go developer at Polymarket who cut matching latency 100x and builds financial and crypto systems.
```

| Detail | Value |
| --- | --- |
| Availability | Open to opportunities |
| Location | United Arab Emirates |
| Authorized to work in | United Arab Emirates |
| Job categories | Go Developer, Platform Engineer, Backend Engineer |
| Skills | Go, Fintech, Cryptocurrency, Payment Systems, Card Issuing, KYC Integration, Cryptocurrency Exchange, Order Matching Engines, Ethereum, Rewards Accounting, Reconciliations, Transaction Signing, Relay, Microservices, gRPC |

## About

```text
At Polymarket, I reduced worst-case matching latency from about 500 ms to about 5 ms by optimizing execution pipelines and hot-path data structures. I also designed and initiated a horizontally scalable, sharded matching engine for the CLOB platform.

At Brahma, I led backend development of Brahma Cards, integrating Sumsub for KYC and Rain for card management and crypto payments. I also built multichain transaction relaying, account authorization, and automation systems.

At Nanos Payment (Genesis Wealth), I helped design and build a cryptocurrency exchange end to end, including its Order Matching Engine and Transactions service. I led six Go engineers and made technical decisions across system design and delivery.

At TrialBlaze, I designed and built a compute engine for trial-staff entitlements and a workflow manager for contract approvals, while leading three Go developers. My open-source Go projects include Ethereum staking workflows, deterministic simulation testing, and an EVM indexing framework.
```

## Experience

### Senior Platform Engineer (current)

[Polymarket](https://himalayas.app/companies/polymarket). Sep 2025 - Present

```text
Lead performance engineering and architectural redesign of the matching engine behind a trading system with 2M+ concurrent users and 80K+ RPS. Reduced worst-case end-to-end matching latency from ~500 ms to ~5 ms (100x) and designed a horizontally scalable, sharded matching engine.
```

Skills: Go, gRPC, Kafka, NATS, Redis, PostgreSQL, GETH, Kubernetes, AWS, Terraform, Argo

### Senior Golang Developer

Brahma. Jun 2023 - Aug 2025

```text
Led backend development of Brahma Cards, integrating Sumsub for KYC and Rain for card management and crypto payments. Built a multichain relayer, authentication layer, policy engine, automation engine, and real-time WebSocket service.
```

Skills: Go, GETH, Temporal, Kafka, Redis, PostgreSQL, Kubernetes, AWS, KrakenD, Cloudflare

### Senior Golang Developer

B2Broker. Jan 2023 - Jun 2023

```text
Worked on a unified trading gateway connecting to multiple trading platforms including MatchTrader, MetaTrader, and cTrader. Built a gRPC API gateway and improved code quality and test coverage.
```

Skills: Go, gRPC, Kubernetes-API, Operator-SDK, PostgreSQL, NATS, RabbitMQ

### Golang Team Lead

Nanos Payment (Genesis Wealth). Oct 2020 - Dec 2022

```text
Designed and built a cryptocurrency exchange platform from scratch, including the Order Matching Engine, Transactions, and other core microservices. Led a team of six Go engineers and owned the system architecture.
```

Skills: Go, Solidity, Kafka, NATS, Temporal, PostgreSQL, Redis, Etcd, AWS, Prometheus, Grafana, Jaeger

### Golang Team Lead

TrialBlaze. Mar 2018 - Sep 2020

```text
Designed and built a compute engine for calculating trial staff entitlements and a workflow manager for contract approval. Led a team of three Go developers and ran BDD test plans.
```

Skills: Go, gRPC, GCP, Kubernetes, Istio, Docker, Apache-Pulsar, PostgreSQL, Jaeger, Prometheus, Grafana

### Java Software Engineer

NotionWave. Jan 2015 - Feb 2018

```text
Developed a digital repository for universities and journals to store and publish digital content.
```

Skills: Java, Spring-Framework, EJB, JPA, Hibernate, MSSQL, AWS, Docker

## Education

### University of Guilan

Bachelor of Science, Computer Software Engineering. 2011 - 2015

```text
Bachelor of Science in Computer Software Engineering from the University of Guilan, completed in 2015.
```

## Tech stack

- Ethereum
- Kubernetes
- Argo
- Cloudflare
- PostgreSQL
- Relay
- Spring
- Redis
- Terraform
- Java
- Go
- Kafka
- RabbitMQ
- Apache Pulsar
- Istio
- Grafana
- Prometheus
- Hibernate
- etcd
- NATS
- gRPC
- Docker
- Solidity
- Jaeger
- KrakenD
- Hazelcast
- AWS

To contact Hamed, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

## People also viewed

- [Humam Alamir](https://himalayas.app/@humamalamir): Lead Software Engineer, Rawi Platform
- [Dhananjay Takalkar](https://himalayas.app/@dhananjaytakalkar): Software Engineer, Soul Trading
- [Freddie Coleman](https://himalayas.app/@freddiecoleman1): Solutions Architect, Chia Network
- [Usama Akbar](https://himalayas.app/@usamaakbar1): Senior Software Engineer II, Innovation Insight
- [sushil parajuli](https://himalayas.app/@sushilparajuli): Senior Full Stack Engineer, MULTIBANK
- [Deepak Atariya](https://himalayas.app/@deepakatariya): Senior Associate Technology, Emirates NBD
- [Htet Htet Yadanar Oo](https://himalayas.app/@htethtetyadanaroo): Backend Developer Fintech, MHMarkets
- [Aysha Lasmin K Fazul](https://himalayas.app/@ayshalasminkfazul): Sr. Software Engineer, PAY10
- [Fazil Meethale Anandi](https://himalayas.app/@fazilmeethaleanandi): Senior Software Engineer, CoinRoutes.com
- [Parikalp Bhardwaj](https://himalayas.app/@parikalpbhardwaj): Software Engineer, Delta International Institute