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Contract Testing Jobs in New York (NOW HIRING)

Lancesoft

Engr 1, Mechanical

Branchburg, NJ · On-site

$25 - $30/hr

A combination of education and experience in laboratory services, medical device, IVD and/or pharmaceutical industry, preferably in a contract testing and/or laboratory environment will be considered.

fun.xyz

Protocol Engineer

New York, NY · On-site

Experience with formal verification or advanced smart contract testing frameworks We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications ...

fun.xyz

Protocol Engineer

New York, NY · On-site

Experience with formal verification or advanced smart contract testing frameworks We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications ...

fun.xyz

Protocol Engineer

New York, NY

Experience with formal verification or advanced smart contract testing frameworks We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications ...

Paxos Labs

Smart Contract Engineer

New York, NY · On-site +1

Experience developing and maintaining tests for smart contract code i.e. unit testing, fork testing, fuzzing, invariant testing (Foundry invariants or Echidna). * Experience with smart contract ...

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Showing results 21-40

All JobsContract Testing JobsContract Testing Jobs in New York

Contract Testing information

What is the difference between Contract Testing vs Software Tester?

AspectContract TestingSoftware Tester
Primary FocusVerifies interactions between services or components based on predefined contractsEnsures overall software quality through manual or automated testing of functionalities
Skills & CertificationsKnowledge of API testing, contract frameworks, possibly some automation toolsTesting methodologies, scripting, automation, certifications like ISTQB
Work EnvironmentOften in Agile teams, working closely with developers and QACan vary from manual testing to automation, in various development environments

Contract Testing specializes in validating interactions between services based on contracts, while Software Testers focus on overall software quality through various testing methods. Both roles require testing skills but differ in scope and focus.

What are some common challenges faced by professionals working in contract testing, and how can they be addressed?

Professionals in contract testing often encounter challenges such as ensuring clear communication between frontend and backend teams, maintaining up-to-date test suites when APIs evolve, and managing test flakiness due to changes in dependencies. Addressing these challenges typically involves regular collaboration with development teams, implementing automation for contract verification, and using robust mocking tools. Being proactive in reviewing contract changes and participating in cross-functional meetings can greatly enhance the reliability and efficiency of contract testing processes.

What is contract testing?

Contract testing is a software testing approach used to ensure that different services or components in a system interact correctly according to a set of agreed-upon rules, known as contracts. It is especially useful in microservices architectures, where independent services must communicate reliably. By verifying that the provider and consumer of an API adhere to the same contract, contract testing helps prevent integration issues and reduces the risk of breaking changes during development.

What are the key skills and qualifications needed to thrive as a contract tester?

To thrive as a Contract Tester, you need a solid understanding of software testing principles, API interactions, and experience with contract testing frameworks like Pact or Postman, often supported by a background in computer science or QA. Familiarity with version control systems such as Git, CI/CD pipelines, and relevant certifications like ISTQB can be highly beneficial. Strong analytical thinking, attention to detail, and effective communication are crucial soft skills for collaborating with development teams and stakeholders. These skills are essential to ensure seamless integration between services, reduce bugs, and deliver reliable software systems.
What are the most commonly searched types of Testing jobs in New York? The most popular types of Testing jobs in New York are:
What cities in New York are hiring for Contract Testing jobs? Cities in New York with the most Contract Testing job openings:
Contract Testing jobs near you
Infographic showing various Contract Testing job openings in New York as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 10% Part Time, 4% Contract, and 1% Nights. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution.

Fun.xyz - Protocol Engineer

De Circle

New York, NY • On-site

Full-time

Re-posted 5 days ago

Job description

At Fun.xyz, we believe a tokenized future is a beneficial inevitability, granting financial emancipation to everyone with an internet connection. For a blockchain-first global economy to exist, value exchange must become intuitive, secure, and seamless.
Enter Checkout - the highest converting payment solution in web3. By integrating Checkout, dApps enable users to complete any on-chain action using crypto from a wallet, centralized exchange, or on-ramped fiat from a card or bank account. With access to market-leading routing and their asset portfolio at the point of sale, users are faster, stickier, and more engaged.
We built Checkout because we envision a world where anyone, anywhere, can purchase anything with any asset. If that sounds like a vision you can get behind, we want to hear from you.
Role Overview
We're looking for a Protocol Engineer to join our core blockchain team and help build the foundation of Web3 payments infrastructure. This high-impact role offers the opportunity to work on challenging technical problems at the intersection of smart contracts, cross-chain protocols, and decentralized finance.
You will design and implement secure, efficient smart contract systems and blockchain integrations that power millions of transactions across multiple chains. This role is perfect for a technically strong engineer who thrives in fast-paced environments and wants to shape the future of decentralized finance.
Responsibilities
  • Design, develop, and deploy secure smart contracts and protocol implementations across multiple blockchain platforms
  • Collaborate with backend and product teams to architect blockchain solutions that meet business requirements
  • Write highly efficient, well-tested code and participate in security audits to ensure protocol safety
  • Research and evaluate new blockchain technologies, protocols, and DeFi primitives for integration opportunities
  • Contribute to incident response and debugging on-chain issues to ensure protocol reliability

  • Strong experience building and deploying production smart contracts on major blockchain platforms
  • Deep understanding of blockchain architecture, consensus mechanisms, and cryptographic principles
  • Hands-on experience with smart contract development languages (Solidity, Rust, Move, etc.)
  • Solid grasp of DeFi protocols, token standards, and cross-chain communication patterns
  • Strong security mindset with knowledge of common smart contract vulnerabilities and best practices
  • Clear communicator who can explain complex blockchain concepts to cross-functional teams
Nice to Have
  • Production experience with multiple blockchain ecosystems (Ethereum, Solana, L2s, etc.)
  • Previously worked at crypto startup or Web3 infrastructure company
  • Experience with cross-chain bridges, oracles, or interoperability protocols
  • Background with high-volume DeFi protocols or DEX infrastructure
  • Contributions to blockchain open source projects or protocol research
  • Experience with formal verification or advanced smart contract testing frameworks

Apply