Jobs

*Description*

We are developing a blockchain platform related to renewable energy assets and are looking for an experienced Solidity developer/security specialist to perform a *preliminary audit and functional testing* of our smart contracts on the *Polygon network*.

The goal is to identify potential security vulnerabilities, logic issues, and edge cases before proceeding to a full professional audit.

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*Scope*

The freelancer will:

* review Solidity smart contracts

* identify security vulnerabilities (reentrancy, access control, etc.)

* review staking, minting, and reward logic

* test core platform flows (staking, rewards, minting, unlock logic)

* identify possible edge cases or economic attack vectors

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*Deliverables*

A short report including:

* identified vulnerabilities

* logic issues or design risks

* suggested improvements

* results of functional testing

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*Requirements*

* Solidity / EVM experience

* smart contract security knowledge

* experience with tools like Slither, Hardhat, Foundry, etc.

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*Notes*

Code will be shared via a *private repository* and NDA may be required.

Potential for follow-up work if collaboration goes well.

We are seeking a skilled smart contract auditor to review our blockchain-based project. The ideal candidate will have a strong background in smart contract development and security auditing.

It is one ERC-721 smart contract with a few custom functions.

You will be responsible for identifying potential vulnerabilities and ensuring compliance with best practices. Experience in various blockchain platforms is essential. If you are detail-oriented and have a proven track record in this field, we would love to hear from you.

Make sure to attach your previous audit reports in your proposal. Also let us know what kind of tools you are most comfortable with when doing automated testing of smart contract.

We are looking for an exceptional Remote Smart Contract Engineer for one of our clients.Our client is building an app that is the best place to save and spend your dollars. They combine high-yield savings with rewarded spending in a single, compounding balance that's easy to manage. Soon the app will let you pay your bills and put your financial life on autopilot. And through all of this — unlike every other fintech company — they don't skim from you.As a Smart Contract Engineer you will:

Be integral to implementing novel economic systems built on top of Ethereum.Work regularly with security auditors and external contributors to document and upgrade code.Support and maintain an active test economy, as well as integrations with partner protocols.Act as a primary contributor to the tech community, evaluating and implementing upgrade proposals.Ensure smart contracts track state of the art by evaluating new DeFi protocols, EIPs, Layer 1 and Layer 2 mechanisms, etc.We’re looking for you if:

You’re drawn to the hardest problems with the greatest potential impact.You combine strong CS/Software Engineering fundamentals with a strong background in math and security.You have knowledge of cryptography fundamentals and independent interest in economics.You fail fast, prioritize tests, and you’re comfortable up and down the software stack.100% remote role for any location USA or Europe.If you think you fit the description please apply.

Our client is seeking a highly meticulous and experienced Senior Smart Contract Auditor to join their growing security team in Boston, Massachusetts, US . This critical role involves rigorously analyzing smart contracts and blockchain protocols to identify vulnerabilities, ensure security, and maintain the integrity of decentralized applications. The ideal candidate will possess a deep understanding of smart contract programming, common security exploits, and formal verification techniques.

Responsibilities:
Perform comprehensive security audits of smart contracts across various blockchain platforms (e.g., Ethereum, BSC, Polygon). Identify, analyze, and document potential vulnerabilities, bugs, and security risks within smart contract code. Develop and execute test plans, static analysis, and dynamic testing methodologies for smart contracts. Provide detailed and actionable recommendations for remediation of identified security issues. Collaborate with development teams to explain vulnerabilities and guide them in implementing secure coding practices. Contribute to the development of internal security tools, frameworks, and best practices for smart contract auditing. Stay up-to-date with the latest emerging threats, attack vectors, and security advancements in the blockchain space. Write clear, concise, and thorough audit reports for clients and internal stakeholders. Mentor junior auditors and contribute to team knowledge sharing and professional development. Participate in threat modeling and security design reviews for new blockchain projects. Qualifications:
Bachelor's degree in Computer Science, Cybersecurity, or a related field. Advanced degree or relevant certifications are highly desirable. Minimum of 4 years of experience in smart contract development, security analysis, or vulnerability research. Proficiency in Solidity and experience with other smart contract languages (e.g., Vyper, Rust). Deep understanding of common smart contract

About the position

Join a premier blockchain security firm trusted by top-tier DeFi protocols as a Blockchain Security Auditor. This role involves conducting manual code reviews to identify critical vulnerabilities, ensuring the security and integrity of cutting-edge blockchain applications.

Responsibilities

Perform thorough manual code reviews to detect critical vulnerabilities in smart contracts.Collaborate with development teams to provide security insights and recommendations.Utilize tools such as Slither and Foundry to enhance security analysis.Document findings and create detailed reports for technical and non-technical stakeholders.Stay updated with the latest developments in blockchain technology and security trends.Requirements

Expert knowledge of Solidity and Ethereum Virtual Machine (EVM).Proven experience in conducting security audits for blockchain applications.Proficiency in using security analysis tools such as Slither and Foundry.Strong analytical and problem-solving skills.Excellent communication skills, both written and verbal.

Summary: Join a premier blockchain security firm trusted by top-tier DeFi protocols as a Blockchain Security Auditor. This role involves conducting manual code reviews to identify critical vulnerabilities, ensuring the security and integrity of cutting-edge blockchain applications.

Responsibilities:

Perform thorough manual code reviews to detect critical vulnerabilities in smart contracts.
Collaborate with development teams to provide security insights and recommendations.
Utilize tools such as Slither and Foundry to enhance security analysis.
Document findings and create detailed reports for technical and non-technical stakeholders.
Stay updated with the latest developments in blockchain technology and security trends.

Required skills:

Expert knowledge of Solidity and Ethereum Virtual Machine (EVM).
Proven experience in conducting security audits for blockchain applications.
Proficiency in using security analysis tools such as Slither and Foundry.
Strong analytical and problem-solving skills.
Excellent communication skills, both written and verbal.

A leading technology company is seeking a Smart Contract Engineer to join their remote team. You will be tasked with implementing innovative smart contracts and managing project roadmaps, all while enjoying the flexibility of remote work and a competitive salary.

This role offers the chance to work with talented individuals in the thriving crypto space, with benefits including unlimited vacation and top-tier health coverage.
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Job Description
Job DescriptionOverview

The Senior Smart Contract Developer plays a crucial role in our organization by designing, implementing, and maintaining smart contracts on blockchain platforms, ensuring the security, efficiency, and scalability of decentralized applications.

Key Responsibilities
• Design, implement, and deploy smart contracts that build out functionality and modules for our smart account wallet using Solidity.
• Collaborate with ecosystem partners to integrate and align our smart contract modules with broader industry standards and practices.
• Establish frameworks, processes, and tools to ensure the security and reliability of smart contracts.
• Work closely with engineers, designers, product managers and senior leadership to turn our product and technical vision into clear, actionable plans.

Required Qualifications
• 4+ years of experience in building and deploying production-grade smart contracts.
• Experience with the full lifecycle of smart contract development, from design to deployment, including conducting security audits.
• Proficiency with developer tools such as Truffle, Ganache, Hardhat or Foundry.
• A passion for creating secure, user-friendly decentralized applications.
• Experience with layer 2 networks and cross-chain interoperability.

Preferred Qualifications:
• Experience working with smart wallets built on top of ERC-4337 and leveraging ERC-7579 modules.
• Experience with front-end technologies like React and web3 libraries like viem and permissionless.js.
• Active involvement in EIP discussions (and possibly having proposed your own).
• Contributions to open-source projects.
• Experience working in a rapidly growing company and collaborating effectively with remote teams.
• Experience with Rust and the Solana/SVM ecosystem as well.

Our client, a prominent blockchain security firm, is seeking a highly skilled Smart Contract Auditor to join their elite team. This hybrid role focuses on meticulously analyzing and verifying the security and integrity of smart contracts deployed on various blockchain networks. You will play a crucial role in identifying vulnerabilities, potential exploits, and coding errors before they can be leveraged by malicious actors. The ideal candidate will possess a deep understanding of blockchain technology, smart contract development (particularly in Solidity), and common security pitfalls within the decentralized ecosystem. Responsibilities include performing static and dynamic code analysis, manual code reviews, penetration testing, and developing comprehensive audit reports detailing findings and recommended remediations. Experience with formal verification methods and security analysis tools is highly advantageous. You must have a proven ability to think like an attacker and a meticulous attention to detail. A strong background in cryptography and secure coding practices is essential. While the position is based in **Milwaukee, Wisconsin, US**, it offers a flexible hybrid work model, allowing for remote work for a significant portion of the time. You will collaborate with development teams, project managers, and other security researchers to ensure the highest level of security for our clients' decentralized applications. This is an exceptional opportunity for security-focused developers and researchers to contribute to the safety and trustworthiness of the Web3 space. If you are passionate about blockchain security and possess the technical acumen to dissect complex smart contracts, we encourage you to apply. Your expertise will be critical in safeguarding the decentralized future.

Overview

We are seeking a highly skilled and motivated Senior QA Automation Engineer with extensive automation experience, particularly with Playwright. In this role, you will be instrumental in designing, developing, and maintaining our automated testing frameworks and suites for our web applications. You will work closely with development, product, and other QA team members to ensure the delivery of high-quality, robust, and reliable software.

Contract This is a contract role (3 months with possibility for extension) open to candidates residing in California, Wisconsin, New York, Massachusetts or North Carolina. Note: Only applications submitted through the designated link will be considered. Applicants submitted by any other means will not be reviewed or considered. Please do not spam our employees regarding your application.

Key Responsibilities Automation Strategy & DevelopmentDesign, develop, and maintain scalable, robust, and efficient automated test suites using Playwright (TypeScript) Debugging Playwright tests using trace files and logs Contribute significantly to the architecture and evolution of our automation frameworks Integrate automated tests into the CI/CD pipeline to support continuous testing Defect ManagementIdentify and communicate bugs found during regression or scheduled test executions Work closely with the supervisor to reproduce, debug, and resolve issues Quality AdvocacyAct as a strong advocate for quality throughout the software development lifecycle Continuously seek to improve QA processes, tools, and methodologies CollaborationParticipate in design reviews, sprint planning, and daily stand-ups Communicate test results, risks, and quality metrics to the supervisor Requirements Required Qualifications:

Experience: 5+ years of direct experience in Quality Assurance focused on test automation development or 3+ years of development experience Playwright Expertise: Strong experience in designing, d

Job Description
Local to CT Candidates ( Must be in 50 Miles Radius )
Candidate Must Be Local
Candidate must be willing to work on site 20% (The QA Team is in the office 1x per week)
Candidate must be within a two hour drive of Hartford CT.
Candidate must be a U.S. Citizen or Permanent Resident

The agency needs the service of 1 HANDS ON QA Automation Engineer. The candidate will serve in the capacity of a QA Automation Engineer, will follow a well-defined vision of how IT and the business aligns and make sure that everyone is following the same principles, methodologies, and support activities per the direction of agency management. The specific focus of this candidate will be to ensure that functional requirements are met whilst also ensuring that service qualities (Performance, scalability, extensibility, maintainability, security, interoperability) for now and for the future are achievable. In addition, this role is responsible for reviewing and improving on existing systems, making use of new technologies and methodologies to seek continual improvement for existing systems

Specific Services Required:
In the role of the QA Automation Tester, the following services are required:
Follow the core technology and architecture for automated testing of large-scale distributed systems, midrange to client server and n tier e commerce applications and solutions.
Follow specifications to automate the testing of applications.
Work on all test automation components of solution and create/maintain required technical documentation.
Follow developed strategies for end-to-end system testing.
Assist in all testing processes involving the migration and integration of new and legacy technologies.
Excellent communication, presentation, collaboration, and interpersonal skills.
Demonstrated ability to deliver business and technical value.
Must be very organized, pro-active, and self-directed. Must be able to perform with minimal supervision.
Must have very strong abstract thinking an

Original: contract search

Original: contract search