Blockchain Tester

Akkodis is seeking a Blockchain Tester for a Contract with a client in Jersey City, NJ / Dallas, TX / Tampa, FL. The role requires strong hands‑on experience with blockchain platforms and smart contract testing frameworks to ensure data integrity, security, and reliability across distributed ledger systems.

Rate Range: $45/hour to $49/hour; The rate may be negotiable based on experience, education, geographic location, and other factors.

Blockchain Tester job responsibilities include:

• Perform functional testing of blockchain transactions, ledgers, events, and consensus flows to ensure data integrity and immutability.

• Test and validate smart contracts through unit, functional, and boundary testing using frameworks such as Truffle, Hardhat, Ganache, or Foundry.

• Design, build, and execute automated test scripts for blockchain workflows, APIs, and UI integrations using Selenium, Cypress, Postman, Web3.js, and scripting languages.

• Conduct non‑functional testing, including performance, load, and stress testing, to validate transaction throughput, latency, and network stability.

• Execute security testing to identify vulnerabilities such as reentrancy, overflow/underflow, front‑running, and access‑control issues using tools like MythX and Slither.

• Validate wallet operations, digital signatures, cryptographic flows, and API integrations between blockchain nodes and external systems.

• Create detailed test documentation, report defects with reproducible steps, and collaborate closely with developers, architects, and product owners in Agile environments.

Required Qualifications:

• Bachelor’s degree in computer science, Information Technology, Engineering, or a related field.

• 6–10 years of experience in QA/testing, with hands‑on exposure to blockchain or distributed systems testing.

• Strong experience in functional, automation, performance, and security testing of blockchain platforms and smart contracts using tools such as Truffle, Hardhat, Web3.js, Postman, and Selenium.

• Solid understanding of blockchain fundamentals, consensus mechanisms, cryptography, API integrations, and CI/CD pipelines, with the ability to collaborate effectively in Agile environments.

If you are interested in this role, then please click APPLY NOW. For other opportunities available at Akkodis, or any questions, feel free to contact me at Shubham.Vasishtha@ akkodisgroup.com.

Pay Details: $45.00 to $49.00 per hour

Benefit offerings available for our associates include medical, dental, vision, life insurance, short-term disability, additional voluntary benefits, EAP program, commuter benefits and a 401K plan. Our benefit offerings provide employees the flexibility to choose the type of coverage that meets their individual needs. In addition, our associates may be eligible for paid leave including Paid Sick Leave or any other paid leave required by Federal, State, or local law, as well as Holiday pay where applicable.

Equal Opportunity Employer/Veterans/Disabled

Military connected talent encouraged to apply

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The Company will consider qualified applicants with arrest and conviction records in accordance with federal, state, and local laws and/or security clearance requirements, including, as applicable:

• The California Fair Chance Act
• Los Angeles City Fair Chance Ordinance
• Los Angeles County Fair Chance Ordinance for Employers
• San Francisco Fair Chance Ordinance

Massachusetts Candidates Only: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.