Lead Blockchain Architect - Scalable & Secure (Hybrid)

Placements24; Randburg; Hybrid; ZAR 1,200,000 - 2,400,000; Full time

Benefits offered by this job

Competitive compensation

Hybrid work model

Professional development

Conference exposure

Randburg office workspace

Gauteng tech leadership

Job summary

Placements24 is seeking a Senior Blockchain Architect in Randburg to design and oversee scalable, secure blockchain solutions. You will set technical strategy, evaluate emerging technologies, and guide architecture for rapid growth and complex transactions.

The ideal candidate has deep distributed ledger knowledge, experience with Layer 2, sharding, and off‑chain tech, and strong leadership and mentoring abilities to drive multiple teams forward.

Qualifications

• Minimum 8 years of software architecture and engineering experience with a focus on blockchain technologies.
• Deep knowledge of Ethereum, Solana, Polkadot and their underlying protocols.
• Experience designing scalable systems including Layer 2, sharding and off‑chain tech.
• Proficiency in Go, Rust, C++, or Java.
• Strong cryptography, distributed systems, and network security understanding.
• Experience with cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes).
• Proven ability to lead technical projects and mentor teams.
• Excellent analytical, strategic thinking and communication skills.

Responsibilities

• Design and implement scalable blockchain architectures meeting performance, security and scalability goals.
• Evaluate platforms, consensus algorithms, and supporting technologies.
• Lead technical roadmaps and architectural blueprints for new initiatives.
• Collaborate with engineering teams to implement architectural designs.
• Provide technical leadership and mentorship to developers.
• Conduct feasibility studies, PoCs, and performance analyses.
• Ensure adherence to security standards and regulatory requirements.
• Stay current with blockchain tech, Layer 2 solutions, and related infra.
• Communicate architectural vision to stakeholders at all levels.

Skills

Blockchain architectures

Distributed systems

Cryptography

Layer 2

Sharding

Go

Rust

C++

Java

Docker

Kubernetes

Leadership

Mentoring

Tools

Docker

Kubernetes

AWS

Azure

Job description

Placements24 is seeking a Senior Blockchain Architect in Randburg to design and oversee scalable, secure blockchain solutions. You will set technical strategy, evaluate emerging technologies, and guide architecture for rapid growth and complex transactions.

The ideal candidate has deep distributed ledger knowledge, experience with Layer 2, sharding, and off‑chain tech, and strong leadership and mentoring abilities to drive multiple teams forward.