Distributed Platform / Blockchain Tester

Job Description

Title: Distributed Platform / Blockchain Tester

Company Name: An International Software Company

Vacancy: 1

Age: At least 25 years

Job Location: Dhaka

Salary: Negotiable

Experience:

• 3 to 5 years
• The applicants should have experience in the following business area(s): Software Company

• Bachelor of Science (BSc)
• Master of Science (MSc)

• 3 to 5 years
• The applicants should have experience in the following business area(s): Software Company

• Age At least 25 years

• Strong understanding of blockchain and DAG architectures, consensus algorithms, and distributed systems principles.

• Hands-on expertise in testing at least one major platform such as Hedera Hashgraph, IOTA, or Sui.Good to have experience with multiple ecosystems such as Ethereum, Bitcoin, Hyperledger, Cosmos, or Polkadot.

• Solid knowledge of network protocols (TCP/IP, P2P, gossip protocols) for distributed communication.

• Proven ability to analyze transaction/state logs and debug inconsistencies across distributed nodes.

• Proficiency with testing frameworks, automation tools, and monitoring platforms used in distributed and blockchain environments.

• Familiarity with cryptographic concepts (hashing, digital signatures, Merkle trees) and their role in distributed ledgers.

• Experience with chaos testing, Byzantine fault tolerance, and network partition testing.

• Strong debugging and problem-solving skills with a security-first mindset.

• Exposure to CI/CD pipelines, API testing, smart contract validation, and performance benchmarking is a plus.

• Design, implement, and execute comprehensive test strategies for blockchain and DAG-based platforms to ensure reliability, performance, and scalability.

• Apply 3–5 years of experience testing distributed systems to identify complex issues in consensus mechanisms, peer-to-peer communication, and transaction workflows.

• Perform functional, integration, and regression testing of transaction processing, state synchronization, and data consistency across multiple nodes.

• Collaborate with developers to validate fixes, debug issues, and ensure seamless integration of distributed components and consensus algorithms.

• Analyze transaction logs, block data, and account state updates to identify discrepancies, bottlenecks, and potential security vulnerabilities.

• Conduct load testing, stress testing, chaos engineering, and fault-injection testing to assess system throughput, resilience, and recovery under failure conditions.

• Validate peer-to-peer protocols, message propagation, and network partition scenarios to guarantee robust connectivity and fault tolerance.

• Stay current with emerging blockchain and DAG technologies, evolving consensus protocols, and best practices in distributed systems testing.

• Contribute to the development of automation scripts, monitoring dashboards, and test frameworks to enhance testing efficiency and coverage.