Blockchain Developer (Backend Focus)

Placements24; Houston (TX); Hybrid; USD 54,000 - 78,000; Full time

Benefits offered by this job

Hybrid work model

Competitive salary

Professional development opportunities

Team social events

Job summary

Placements24 is seeking a skilled Blockchain Backend Developer to join our Randburg team, focusing on scalable backend services for blockchain data analytics. You will design robust data models, ingest data from multiple networks, and build APIs with a strong emphasis on performance and reliability.

The ideal candidate has 4+ years in backend development, including at least 2 years with blockchain or distributed systems, and hands-on experience with Go, Python, Node.js, or Java, REST APIs, cloud

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related field.
• 4+ years of backend development experience, with at least 2 years in blockchain or distributed systems.
• Proficiency in Go, Python, Node.js, or Java.
• Experience with PostgreSQL, MongoDB, Cassandra, and data warehousing concepts.
• Understanding of blockchain protocols, transaction flows, and consensus mechanisms.
• Experience with RESTful APIs development and consumption.
• Familiarity with AWS, GCP, Azure and containerization (Docker, Kubernetes).
• Strong problem-solving and analytical skills.
• Excellent communication and teamwork abilities.
• Experience with message queues (Kafka, RabbitMQ) is a plus.

Responsibilities

• Develop, test, and maintain backend services and APIs for blockchain data processing and analytics.
• Design and implement data models and storage solutions for large-scale blockchain datasets.
• Integrate with blockchain nodes and APIs (Ethereum, Bitcoin, Polygon) to ingest and process data.
• Optimize backend performance for speed, scalability, and reliability.
• Implement robust error handling, logging, and monitoring systems.
• Collaborate with frontend developers and data scientists to deliver seamless product experiences.
• Ensure security and integrity of backend systems and data.
• Research and evaluate new technologies to improve the platform.

Skills

Blockchain development

Backend systems

Go

Python

REST APIs

Cloud platforms

Distributed systems

Data modeling

Education

Bachelor's degree in Computer Science / Software Engineering

Tools

PostgreSQL

MongoDB

Docker

Kubernetes

Kafka

Job description

About the Role

Our client, a dynamic startup innovating in the blockchain data analytics space, is seeking a skilled Blockchain Developer with a strong backend focus to join their team in **Randburg, Gauteng**. This role involves building and scaling the backend infrastructure that powers our data analytics platform, integrating with various blockchain networks, and developing robust APIs. You will work with cutting‑edge technologies to process, store, and analyze vast amounts of blockchain data, providing valuable insights to our users. The ideal candidate has a solid foundation in backend development, experience with distributed systems, and a keen interest in the intricacies of blockchain technology. Join us to contribute to a product that is transforming how businesses interact with blockchain data.

Key Responsibilities

• Develop, test, and maintain backend services and APIs for blockchain data processing and analytics.
• Design and implement efficient data models and storage solutions for large-scale blockchain datasets.
• Integrate with multiple blockchain nodes and APIs (e.g., Ethereum, Bitcoin, Polygon) to ingest and process transaction data.
• Optimize backend performance for speed, scalability, and reliability.
• Implement robust error handling, logging, and monitoring systems.
• Collaborate with frontend developers and data scientists to deliver seamless product experiences.
• Ensure the security and integrity of the backend systems and data.
• Research and evaluate new technologies and tools to improve the platform's capabilities.
• Write clean, well‑documented, and maintainable code.

Requirements

• Bachelor's degree in Computer Science, Software Engineering, or a related field.
• 4+ years of experience in backend development, with at least 2 years working with blockchain or distributed systems.
• Proficiency in one or more backend programming languages such as Go, Python, Node.js, or Java.
• Experience with database technologies (e.g., PostgreSQL, MongoDB, Cassandra) and data warehousing concepts.
• Understanding of blockchain protocols, transaction flows, and consensus mechanisms.
• Experience with building and consuming RESTful APIs.
• Familiarity with cloud platforms (AWS, GCP, Azure) and containerization (Docker, Kubernetes).
• Strong problem‑solving and analytical skills.
• Excellent communication and teamwork abilities.
• Experience with message queues (e.g., Kafka, RabbitMQ) is a plus.

Benefits

• Competitive salary and benefits package.
• Hybrid work model providing flexibility.
• Opportunity to work on challenging problems in blockchain data analytics in **Randburg**.
• Collaborative and innovative team environment.
• Professional development and training opportunities.
• Chance to work with a growing company in the exciting blockchain sector.
• Regular team social events.