Senior Distributed Systems Engineer - Golang (External) at Serotonin

Warsaw, Masovian Voivodeship, Poland

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Not SpecifiedCompensation

Senior (5 to 8 years)Experience Level

Full TimeJob Type

UnknownVisa

Blockchain, Cryptocurrency, AI, Web3, DeFiIndustries

Requirements

3+ years developing infrastructure in adversarial, peer-to-peer environments (e.g., blockchain nodes)
5+ years of development experience in Go (required), JavaScript/Node, TypeScript, Python, or Rust
5+ years with both SQL and NoSQL systems
Strong background in Web3, crypto, DeFi, and AI technologies
Demonstrated experience building public-facing APIs handling high throughput (≥10⁴ requests per day)
Excelling in fast-paced startup environments, with strong problem-solving and cross-team collaboration skills
Preferred Requirements
Experience with open-source tooling or contributions to developer communities
Familiarity with the Cosmos SDK or similar protocol frameworks
Background in AI/ML, statistics, or algorithm design
Understanding of Solidity and smart contract development
Exposure to Kafka or other streaming platforms
Hands-on experience with production-grade smart contracts

Responsibilities

Design, build, and maintain backend services using Go, navigating the full lifecycle from ideation to production
Collaborate with multiple squads to deliver new features and drive product velocity
Write reliable, well-tested code that scales under high-demand environments
Improve the software development lifecycle through effective technical design, lean iteration, and thorough documentation
Mentor and support peers, contributing to a culture of engineering excellence

Skills

Distributed Systems

Peer-to-Peer Networking

SQL

NoSQL

Web3

Blockchain

APIs

Rust

Python

TypeScript

Node.js

JavaScript

DeFi

Crypto

Serotonin

Marketing firm specializing in blockchain solutions

About Serotonin

Serotonin provides marketing and product development services specifically for technology and blockchain companies. The firm helps clients create effective marketing strategies, launch products, and enhance their media presence. By utilizing their knowledge in digital marketing and blockchain, Serotonin positions brands to achieve significant market impact. What sets Serotonin apart from competitors is its specialized focus on breakthrough technology and Web3 startups, along with a team of experts who bring a wealth of experience in both marketing and technology. The goal of Serotonin is to empower its clients to succeed in the fast-paced tech landscape by delivering tailored solutions that drive growth and visibility.

New York City, New YorkHeadquarters

2020Year Founded

$2.9MTotal Funding

VENTURE_UNKNOWNCompany Stage

Consulting, Crypto & Web3Industries

51-200Employees

Benefits

Competitive Salary

Health Insurance

Remote Work Environment

Risks

Emerging blockchain marketing firms increase competition, potentially diluting market share.

Rapid Web3 technology evolution may outpace Serotonin's current capabilities.

Negative perception of Web3 gaming could hinder effective marketing efforts.

Differentiation

Serotonin specializes in transformative technology and blockchain solutions for tech startups.

The company offers comprehensive marketing strategies and product development services.

Serotonin's team has expertise in digital marketing, blockchain, and public relations.

Upsides

Growing interest in Web3 and blockchain in the Middle East offers expansion opportunities.

On-chain competition platforms like JokeRace present new markets for Serotonin's services.

Demand for improved UX in Web3 gaming aligns with Serotonin's consulting expertise.

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