DeARX

Blockchain Development Specialist (Ethereum) 12-Month Contract

DeARX  •  South Africa (Onsite)  •  4 days ago
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Job Description

We are seeking a highly skilled Blockchain Development Specialist (Ethereum) to join a leading banking client on a 12-month contract. This is an exciting opportunity to contribute to innovative, enterprise-grade blockchain solutions within a highly regulated financial services environment.


The successful candidate will be responsible for designing, developing, and implementing blockchain-based solutions on the Ethereum platform. You will work closely with solution architects, enterprise engineers, and business stakeholders to build secure, scalable, and high-performance decentralized applications (dApps) and smart contracts aligned to banking and financial services use cases.


Key Responsibilities

  • Design, develop, and deploy smart contracts using Solidity on the Ethereum network
  • Build and maintain decentralized applications (dApps) and blockchain integrations
  • Participate in solution architecture discussions and contribute to blockchain design standards
  • Ensure security, scalability, and performance of blockchain solutions
  • Integrate blockchain solutions with existing enterprise systems and APIs
  • Conduct code reviews, testing, and debugging of smart contracts and applications
  • Collaborate with cybersecurity, DevOps, and cloud teams for secure deployment
  • Stay up to date with emerging blockchain trends, tools, and protocols

Required Skills & Experience

  • Strong experience in Ethereum blockchain development
  • Proficiency in Solidity and smart contract development
  • Experience with blockchain frameworks such as Hardhat, Truffle, or Foundry
  • Strong understanding of cryptography, consensus mechanisms, and distributed systems
  • Experience integrating blockchain solutions with APIs and enterprise systems
  • Familiarity with cloud platforms (AWS / Azure preferred)
  • Strong software engineering background (JavaScript, TypeScript, or similar)
  • Experience in financial services or banking environments advantageous

Nice to Have

  • Experience with Layer 2 solutions (Polygon, Optimism, Arbitrum)
  • Knowledge of DeFi, tokenization, or digital assets
  • Understanding of regulatory and compliance requirements in banking
  • Experience with CI/CD pipelines and DevOps practices

This is a unique opportunity to be part of a forward-thinking banking environment shaping the future of digital assets and blockchain technology. If you're ready to make an impact, we'd love to hear from you—apply today.

DeARX

About DeARX

DeARX Services (Pty) Ltd, established in 2001, is a South African based company focused on providing Information Technology business solutions, products and consulting to customers in various industries.

The business is structured into 2 divisions:

DeARX Resourcing: specialists in temporary and permanent recruitment.

DeARX Managed Services: delivers end-to-end systems integration solutions across a wide spectrum of technologies, with deep specialisation in cloud-native platforms, DevOps, identity management, and data integration. Our services span the full integration lifecycle—from assessment and architecture to deployment, monitoring, and support—anchored by a strong foundation in technologies such as IBM, WSO2, Apache Camel, Kubernetes, and AWS. We offer a robust integration Platform-as-a-Service (iPaaS) model, deployable across cloud and on-premise environments, enabling clients to retain control, scale flexibly, and integrate securely across hybrid infrastructures. With a proven track record of crafting pragmatic, high-performing solutions backed by automation, observability, and continuous delivery practices, we help clients unlock lasting value and innovation in their digital ecosystems

Industry
IT & Software
Company Size
51-200 employees
Headquarters
Randburg, ZA
Year Founded
2001
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