OnHires

About company

B2Broker is a liquidity and technology provider of solutions for the crypto and foreign exchange (FX) industry. The company specializes in the sphere of B2B services and products, catering to a wide range of clients including large licensed brokers, crypto exchanges, crypto brokers, forex brokers, hedge and crypto funds, and professional managers. B2Broker’s advanced base of ready-to-use technical solutions enables brokers to save time and money on consuming infrastructure projects and focus on enlarging their client base and increasing their revenues.

Requirements

At least 5 years of experience with Python, including:
- Experience in OOP style using decorators, generators and context managers;
- Deep knowledge of asynchronous programming (asyncio, aiohttp, etc.);
Knowledge and experience with SQLAlchemy, including:
- Object-relational mapping modeling (ORM) and declarative definition of models;
- Knowledge and experience with transactions, sessions and database migrations;
- Query and performance optimization, including understanding N+1 problems;
- Integration of SQLAlchemy with asynchronous frameworks and libraries;
Experience with PostgreSQL including:
- Experience in the design and normalization of database schemas;
- Experience in writing complex SQL queries, including joins, subqueries, and aggregates;
- Understanding indexes, query optimization and performance management;
- Basic understanding of PostgreSQL configuration and administration.
Understanding the principles of working with the blockchain, in particular with UTXO and Account Models;
Strong skills in software architecture and API design;
Experience in organizing Zero-downtime Deploy process to minimize system downtime during upgrades;
Experience with RabbitMQ, including setting up a message broker, creating queues, and handling messages in Python;
Experience with Redis, including use as a cache, session storage, and task queue implementation.
**Preferably: **Experience with Node.js and Solidity will be considered an advantage; Understanding the principles of blockchain technology and decentralized applications. Experience with Docker and Kubernetes Experience with AWS; Python certifications.

Responsibilities

Leading a team of Python developers, conducting interviews;
Experience in managing a team of 5 people or managing large projects;
Make technical decisions and develop the architecture of the project;
Implementation of best development practices and application of new technologies;;
Development and support of integration with blockchain and other technologies;
Code quality control, conducting code reviews;
Applying managerial skills to effectively manage a team, including:
- Distribution of tasks and resource management;
- Team members motivation and development;
- Conflict management and building effective communication within the team;
- Reporting on task progress.

Substream Software Engineer (Node JS + Python)

About company

Requirements

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