QA Engineer - Futures
Status
Asia +1
Full time
Remote
Compensation is not specified
Role
QA Engineer
Description
Binance, a prominent global blockchain ecosystem known for being the primary hub of the largest cryptocurrency exchange worldwide, seeks a skilled professional to enhance its Futures division. With a massive user base spanning over 100 countries, Binance is renowned for its exceptional security measures, transparent fund management, rapid trading engine, robust liquidity, and diverse range of digital asset services. These offerings extend from trading and financial services to education, research, payments, institutional support, Web3 tools, and much more. By harnessing blockchain technology and digital assets, Binance aims to create an inclusive financial ecosystem that promotes financial freedom and accessibility on a global scale.
Responsibilities
- Take part in the software development lifecycle of the Futures department, from requirements analysis to testing, defect rectification, product delivery, and ongoing maintenance.
- Collaborate closely with software engineers, product managers, UX designers, and operation engineers to provide valuable insights on design optimizations and system implementations.
- Establish and oversee testing environments using various technologies like Node.js, Java, Go, and Python, including local blockchain setups. Develop detailed test plans and cases.
- Perform comprehensive testing, covering black-box, white-box, security, automated scripts, performance evaluations on different platforms including Web, Windows, and Mobile OS.
- Keep abreast of the latest technological advancements to continuously refine the team's testing practices, processes, and efficiency.
Requirements
- Minimum of 3 years of professional experience in QA Testing (Automation), ideally within prominent tech companies.
- Preferably possess experience in unit testing with Java or Rust, testing trading systems, and matchmaking processes.
- Proven expertise in conducting functional testing for mobile applications.
- Proficient in designing and executing comprehensive testing plans for complex projects.
- Skilled in identifying and resolving root causes that affect software quality.
Why Binance
- Contribute to shaping the future with a globally-leading blockchain ecosystem.
- Collaborate with top-tier professionals in a global organization that prioritizes user-centric practices and maintains a flat hierarchy.
- Engage in challenging, innovative projects with autonomy in a fast-paced environment.
- Benefit from a results-oriented workplace that offers career growth opportunities and continuous learning.
- Competitive salary and comprehensive company benefits.
- Enjoy the flexibility of a work-from-home setup (subject to the business team's work nature).
Binance is dedicated to fostering an inclusive work environment as an equal opportunity employer, recognizing the importance of a diverse workforce for its success. By applying for a job, you acknowledge having read and agreeing to the Candidate Privacy Notice.
Skills Required
Binance
Website
Not specified
Company size
Not specified
Location
United States
Description
Not specified
Status
Carl Miles
Senior Blockchain Engineer
Part time
Remote
We are Nebula Nodes, building a high-performance L2 protocol. We are looking for an engineer who understands the difference between "writing a smart contract" and "designing a scalable ecosystem".
Protocol Core: Development and optimization of L2-settlement logic on Solidity/Yul.
Bridge Security: Designing secure cross-chain gateways with protection against double spending and reorgs.
Node Infrastructure: Optimizing the interaction of node validators with the EVM stack.
Gas Engineering: Extreme cost reduction for publishing data in L1 (Deneb/Cancun-ready).
Requirements:
Deep knowledge of Solidity (0.8.20+) and Assembly (Yul).
Experience working with Foundry (Fuzzing/Invariants) and understanding the architecture of OP Stack or Arbitrum Orbit.
Skills of working with indexers (The Graph/Envio) and the RPC layer.
Protocol Core: Development and optimization of L2-settlement logic on Solidity/Yul.
Bridge Security: Designing secure cross-chain gateways with protection against double spending and reorgs.
Node Infrastructure: Optimizing the interaction of node validators with the EVM stack.
Gas Engineering: Extreme cost reduction for publishing data in L1 (Deneb/Cancun-ready).
Requirements:
Deep knowledge of Solidity (0.8.20+) and Assembly (Yul).
Experience working with Foundry (Fuzzing/Invariants) and understanding the architecture of OP Stack or Arbitrum Orbit.
Skills of working with indexers (The Graph/Envio) and the RPC layer.
Payment in Crypto
Albert Aria
Social media manager
Full time
Remote
Just as the job description say's, you will work as a social media manager, and help me meet daily target's without fail. You must show your willingness to work
Payment in Crypto
Carlos Lima
Senior Blockchain Engineer
Porto, Portugal
Porto, Portugal
Full time
Hybrid
We're Hiring: Senior Blockchain Engineer 🚀 Location: Porto, Portugal (Hybrid) [EU]Join Only High IQ as we revolutionize blockchain infrastructure! We're seeking a Senior Blockchain Engineer to take technical ownership of our critical transaction system. Company DescriptionOnly High IQ is a hub for innovative minds, fostering collaboration and creativity to develop groundbreaking technological solutions. Our mission is to transform visionary ideas into reality, uniting exceptional talent to shape the future. We thrive on intelligence, creativity, and innovation to pioneer advancements and revolutionary platforms. Join us to be part of a dynamic community at the forefront of technological development. The RoleAs our Senior Blockchain Engineer, you'll be the guardian of our transaction ecosystem - maintaining and evolving the infrastructure that powers high-volume blockchain operations. You'll work with embedded wallet systems and a custom onramping solution, ensuring seamless user experiences from funding to transaction completion. What You'll Do🔹 Own the complete transaction lifecycle - from creation to execution and status transitions🔹 Ensure post-transaction integrity through robust confirmation and reconciliation processes🔹 Maintain and enhance embedded wallet systems and onramping infrastructure🔹 Implement and manage transaction sponsoring mechanisms (gas sponsorship)🔹 Strengthen system safety with replay protection and reprocessing strategies🔹 Build and maintain blockchain interfaces for product backends Required Technical Expertise🔸 Deep Solidity and EVM architecture experience🔸 Expert-level proficiency with Hardhat/Foundry🔸 Strong command of Ethers.js, Viem, or Wagmi🔸 Proven track record managing on-chain/off-chain integrations🔸 TypeScript mastery for backend services🔸 Foundational AWS knowledge (Lambda, EC2, Cognito, Postgres, DynamoDB) Our Tech StackBlockchain Core: Solidity, Hardhat, Foundry, Ethers.js, Viem, WagmiBackend: Node.js, ExpressJS, TypeScript (DDD/Hexagonal patterns)Infrastructure: AWS (Cognito, Lambda, EC2, IAM), Aurora/Postgres, DynamoDB, Neptune Your MissionEnsure reliability, traceability, and production readiness for our high-volume ecosystem. You'll join at an exciting time, building on an established codebase while shaping the future of our infrastructure.Ready to build something extraordinary? Apply now or tag someone who'd be perfect for this role! 👇#BlockchainJobs #CryptoCareers #SeniorEngineer #PortoJobs #TechHiring #BlockchainDevelopment #EVM #Solidity #OnlyHighIQ
Lumixion
DApp & Smart Contract Developer (Vesting Platform)
Full time
Remote
We are looking for a skilled DApp & Smart Contract Developer to enhance and stabilize our client’s crypto vesting platform. You will diagnose existing issues, improve performance, deliver new features, and ensure seamless coordination between smart contracts and the front end.
This role is ideal for someone who thrives in fast-moving environments, values clean and secure code, and understands the nuances of blockchain-based application architecture.
Responsibilities
Diagnose and resolve issues in vesting smart contracts and their front-end integrations.
Implement new features and system enhancements to improve UX and overall platform performance.
Maintain smooth interaction between the web interface and deployed smart contracts.
Conduct testing, audits, and deployments across testnet and mainnet environments.
Optimize contract logic for performance, security, and gas efficiency.
Collaborate with our engineering team to identify pain points and deliver stable, secure solutions.
Requirements
Proven experience building full-stack decentralized applications.
Strong proficiency in Solidity, JavaScript/TypeScript, and modern frameworks (Angular, React, or Vue).
Hands-on experience with Hardhat or Foundry for smart contract development and testing.
Familiarity with Ethers.js or Web3.js for blockchain interaction layers.
Solid understanding of Ethereum, Polygon, or other EVM-compatible chains.
Experience integrating wallets such as MetaMask and managing on-chain/off-chain data flows.
Strong debugging skills, attention to detail, and a security-first mindset.
Nice to Have
Experience with smart contract security audits and gas optimization techniques.
Knowledge of Node.js-based backend services or API integration layers.
Previous experience with vesting, staking, or token distribution mechanisms.
Project Scope
This role supports a short-to-mid-term initiative focused on stabilizing and enhancing an existing crypto vesting platform. High-performing developers may have opportunities for ongoing collaboration across additional blockchain and product engineering projects.
Hiring Process
Technical Assessment - Selected candidates will complete a short, clearly scoped technical exercises designed solely to evaluate coding approach and smart contract knowledge.
CTO interview - A final discussion to evaluate technical reasoning, architectural thinking, and team fit. Successful candidates may receive an offer through Contra following this conversation.
This role is ideal for someone who thrives in fast-moving environments, values clean and secure code, and understands the nuances of blockchain-based application architecture.
Responsibilities
Diagnose and resolve issues in vesting smart contracts and their front-end integrations.
Implement new features and system enhancements to improve UX and overall platform performance.
Maintain smooth interaction between the web interface and deployed smart contracts.
Conduct testing, audits, and deployments across testnet and mainnet environments.
Optimize contract logic for performance, security, and gas efficiency.
Collaborate with our engineering team to identify pain points and deliver stable, secure solutions.
Requirements
Proven experience building full-stack decentralized applications.
Strong proficiency in Solidity, JavaScript/TypeScript, and modern frameworks (Angular, React, or Vue).
Hands-on experience with Hardhat or Foundry for smart contract development and testing.
Familiarity with Ethers.js or Web3.js for blockchain interaction layers.
Solid understanding of Ethereum, Polygon, or other EVM-compatible chains.
Experience integrating wallets such as MetaMask and managing on-chain/off-chain data flows.
Strong debugging skills, attention to detail, and a security-first mindset.
Nice to Have
Experience with smart contract security audits and gas optimization techniques.
Knowledge of Node.js-based backend services or API integration layers.
Previous experience with vesting, staking, or token distribution mechanisms.
Project Scope
This role supports a short-to-mid-term initiative focused on stabilizing and enhancing an existing crypto vesting platform. High-performing developers may have opportunities for ongoing collaboration across additional blockchain and product engineering projects.
Hiring Process
Technical Assessment - Selected candidates will complete a short, clearly scoped technical exercises designed solely to evaluate coding approach and smart contract knowledge.
CTO interview - A final discussion to evaluate technical reasoning, architectural thinking, and team fit. Successful candidates may receive an offer through Contra following this conversation.
Payment in Crypto
Rui Silva
Senior Blockchain Developer - Ethereum/PulseChain - GAM3S.GG
Lisbon, Portugal
Lisbon, Portugal
Full time
Remote
About the Job
We're looking for a Senior Blockchain Developer with strong Ethereum/PulseChain smart contract experience to work on our DeFi/GameFi platform. You'll be building and maintaining betting contracts, yield farming mechanisms, token swap systems, and Web3 frontend integrations for our decentralized application on PulseChain.
Key Responsibilities
Smart Contract Development
System Architecture & Integration
Frontend Web3 Integration
Security & Compliance
Performance & Monitoring
Required Technical Skills
Blockchain Expertise
Frontend Web3 Development
Development Tools
Integration & Tools
We're looking for a Senior Blockchain Developer with strong Ethereum/PulseChain smart contract experience to work on our DeFi/GameFi platform. You'll be building and maintaining betting contracts, yield farming mechanisms, token swap systems, and Web3 frontend integrations for our decentralized application on PulseChain.
Key Responsibilities
Smart Contract Development
System Architecture & Integration
Frontend Web3 Integration
Security & Compliance
Performance & Monitoring
Required Technical Skills
Blockchain Expertise
Frontend Web3 Development
Development Tools
Integration & Tools
Payment in Crypto