Blockchain Engineer (Backend)

Placements24; Bloemfontein; On-site; ZAR 700,000 - 900,000; Full time

Benefits offered by this job

Competitive salary

Health, dental, and vision insurance

Paid time off and holidays

Professional development in blockchain

Innovative work environment

Retirement savings plan

Team-building activities

Modern Bloemfontein office

Job summary

Placements24 is partnering with a rapidly expanding fintech startup in Bloemfontein to hire a Blockchain Engineer with a strong backend focus. You will design, implement and optimize backend services and smart contracts, integrating blockchain networks with existing systems.

The role demands solid experience in Go/Python/Node.js, Solidity, and cloud platforms, with a passion for secure, scalable finance solutions.

Qualifications

• Bachelor's degree in CS/Engineering or equivalent.
• 3+ years backend software development experience.
• At least 1 year experience in blockchain or smart contracts.

Responsibilities

• Develop and maintain robust backend services and APIs for blockchain applications.
• Implement and optimize smart contracts using languages like Solidity or Rust.
• Integrate blockchain networks with existing backend systems and databases.
• Design and manage blockchain node infrastructure and network configurations.
• Ensure the security, scalability, and performance of backend blockchain components.
• Write clean, efficient, and well-documented code.
• Collaborate with frontend developers and product managers to deliver seamless user experiences.
• Troubleshoot and resolve technical issues related to backend blockchain systems.
• Stay updated on the latest blockchain technologies and best practices.
• Participate in code reviews and contribute to architectural decisions.

Skills

Backend development

Blockchain development

API design

Distributed systems

Team collaboration

Education

Bachelor's degree in Computer Science or related field

Tools

Go

Python

Node.js

Java

Solidity

Ethereum

Hyperledger

Docker

Kubernetes

AWS

Azure

SQL

NoSQL

Job description

About the Role

Our client, a rapidly expanding fintech startup revolutionizing payment systems, is seeking a talented Blockchain Engineer with a strong backend focus to join their dynamic team in Bloemfontein, Free State . This role is central to developing and maintaining the core infrastructure of our blockchain-based financial services. You will be responsible for designing, implementing, and optimizing the backend systems that power our decentralized applications and smart contracts. The ideal candidate possesses a deep understanding of blockchain protocols, distributed ledger technology, and robust backend development practices. You will work with cutting-edge technologies to build secure, scalable, and efficient financial solutions. This is an excellent opportunity to contribute significantly to a growing company at the forefront of financial innovation. We foster a collaborative environment where your technical contributions directly impact the success of our products and the user experience. The successful candidate will be passionate about building the future of finance on a decentralized foundation.

Key Responsibilities

• Develop and maintain robust backend services and APIs for blockchain applications.
• Implement and optimize smart contracts using languages like Solidity or Rust.
• Integrate blockchain networks with existing backend systems and databases.
• Design and manage blockchain node infrastructure and network configurations.
• Ensure the security, scalability, and performance of backend blockchain components.
• Write clean, efficient, and well-documented code.
• Collaborate with frontend developers and product managers to deliver seamless user experiences.
• Troubleshoot and resolve technical issues related to backend blockchain systems.
• Stay updated on the latest blockchain technologies and best practices.
• Participate in code reviews and contribute to architectural decisions.

Requirements

• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent experience.
• 3+ years of experience in backend software development.
• At least 1 year of hands-on experience with blockchain development or smart contract programming.
• Proficiency in backend programming languages such as Go, Python, Node.js, or Java.
• Familiarity with smart contract languages (e.g., Solidity) and blockchain platforms (e.g., Ethereum, Hyperledger).
• Understanding of blockchain architecture, consensus mechanics, and cryptographic principles.
• Experience with database technologies (SQL, NoSQL) and cloud platforms (AWS, Azure).
• Strong problem-solving and analytical skills.
• Good communication and teamwork abilities.
• Experience with Docker and Kubernetes is a plus.

Benefits

• Competitive salary and performance incentives.
• Comprehensive health, dental, and vision insurance.
• Generous paid time off and holidays.
• Opportunities for professional development and training in blockchain technologies.
• Engaging work environment with a focus on innovation.
• Be part of a growing company shaping the future of finance.
• Retirement savings plan.
• Team-building activities.
• Modern office located in Bloemfontein .