smart contract developer

Infinty Blockchain Solutions

We are looking for a passionate and motivated Blockchain Developer to join our growing team. As a junior developer, you will work closely with senior engineers and contribute to the design, development, and deployment of blockchain-based solutions. This is an excellent opportunity for recent graduates or developers new to blockchain to gain hands-on experience in a fast-paced, innovative environmentResponsibilities:-Design, develop, and deploy secure and efficient smart contracts using Solidity.-Integrate smart contracts with backend systems using Ethers.js or Web3.js.-Build and maintain scalable REST APIs using Node.js and Express.js.-Develop and manage MongoDB or other NoSQL/SQL databases.-Collaborate with frontend developers and designers to integrate blockchain functionality into web applications.Required Skills and Qualifications:Bachelor degree in computer science or similarProficient in Solidity and Ethers.jsHaving actual mainnet/testnet smart contract deploymentsStrong backend development skills using Node.js and Express.js.Experience working with MongoDB or similar databases.The job is onsite, and all interviews and tests will be held onsite aswell.Timings: 4:00PM - 12:30AMSalary : 30k - 40kLocation: Bahria Phase 7, RawalpindiJob Type: Full-timePay: Rs30,000.00 - Rs40,000.00 per monthWork Location: In person

Blockchain developer

BI Consultancy Services

Junior Blockchain developerWe are looking for a passionate and motivated Blockchain Developer to join our growing team. As a junior developer, you will work closely with senior engineers and contribute to the design, development, and deployment of blockchain-based solutions. This is an excellent opportunity for recent graduates or developers new to blockchain to gain hands-on experience in a fast-paced, innovative environmentResponsibilities:-Design, develop, and deploy secure and efficient smart contracts using Solidity.-Integrate smart contracts with backend systems using Ethers.js or Web3.js.-Build and maintain scalable REST APIs using Node.js and Express.js.-Develop and manage MongoDB or other NoSQL/SQL databases.-Collaborate with frontend developers and designers to integrate blockchain functionality into web applications.Required Skills and Qualifications:Bachelor degree in computer science or similarProficient in Solidity and Ethers.jsHaving actual mainnet/testnet smart contract deploymentsStrong backend development skills using Node.js and Express.js.Experience working with MongoDB or similar databases.The job is onsite, and all interviews and tests will be held onsite aswell.Salary: 30-40KTimings : 4:00PM - 12:30AMOffice location: Bahria Town phase 7, RawalpindiJob Type: Full-timePay: Rs30,000.00 - Rs40,000.00 per monthWork Location: In person

Junior Blockchain developer

We are looking for a passionate Backend Developer With Blockchain relevant experience to join our growing team. You will work closely with senior engineers and contribute to the design, development, and deployment of our Backend and blockchain-based solutions.Responsibilities:-Build and maintain scalable REST APIs using Node.js and Express.js.-Implement secure user authentication, authorization, and data validation systems.-Develop and manage MongoDB or other NoSQL/SQL databases.-Deploy and manage backend applications on cloud services (e.g., AWS, Render, Vercel, or similar).-Design, develop, and deploy secure and efficient smart contracts using Solidity.-Integrate smart contracts with backend systems using Ethers.js or Web3.js.-Collaborate with frontend developers and designers to integrate backend and blockchain functionality into web applications.Required Skills and Qualifications:Bachelor Degree in Computer Science or similar1+ years of experience in backend development using Node.js, Express.js, or Nest.js.Strong understanding of REST APIs, WebSockets, and server architecture.Experience with MongoDB, PostgreSQL, or MySQL.Knowledge of authentication mechanisms (JWT, OAuth, etc.)Familiarity with version control systems (Git, GitHub/GitLab)Knowledge of blockchain APIs, smart contract interaction (web3.js or ethers.js) is an advantage.The job is onsite, and all interviews and tests will be held onsite aswell.Timings: 4:00PM - 12:30AMSalary : 30k - 40kLocation: Bahria Phase 7, RawalpindiJob Type: Full-timeWork Location: In personJob Type: Full-timePay: Rs30,000.00 - Rs40,000.00 per monthWork Location: In person

Backend Developer

Kaizen Global (smc) pvt ltd

Kaizen Global is Hiring! We&rsquo;re looking for a Senior Blockchain Developer to join our team and work on cutting-edge decentralized solutions.Pay: 200k to 220kLocation: 6th Road, RawalpindiTiming: 9am - 5pmKey Responsibilities:<ul><li>Develop &amp; deploy Solidity smart contracts on Ethereum, BSC, Polygon, etc.</li><li>Build Solana anchor contracts, work with SPL tokens &amp; SDKs.</li><li>Integrate DeFi protocols (Uniswap, PancakeSwap) into dApps.</li><li>Utilize Hardhat, Foundry, Moralis APIs &amp; Tron network.</li><li>Audit smart contracts with Slither, Mythril, etc.</li><li>Automate workflows using Node.js &amp; TypeScript.</li><li>Lead R&amp;D to explore new blockchain tools &amp; technologies.</li></ul>Requirements:<ul><li>3+ years in blockchain development (Solidity &amp; EVM chains).</li><li>Strong knowledge of Solana anchor contracts &amp; SDKs.</li><li>Experience with Hardhat, Foundry, Moralis APIs &amp; Tron.</li><li>Hands-on with DeFi protocols &amp; DEX integrations.</li><li>Proficiency in smart contract auditing tools.</li><li>Strong skills in Node.js &amp; TypeScript.</li><li>Solid grasp of blockchain security &amp; best practices.</li></ul>Apply now: hr@thekaizenglobal.comJob Type: Full-timePay: Rs200,000.00 - Rs220,000.00 per monthWork Location: In person

Senior Blockchain Developer

LastingSales

About the RoleWe are looking for a highly skilled Senior Blockchain Developer with strong expertise in Web3 and Golang. The ideal candidate will be responsible for designing, developing, and deploying scalable blockchain-based solutions while collaborating closely with our backend and smart contract teams.Key Responsibilities<ul><li>Design, develop, and maintain blockchain applications and Web3 integrations.</li><li>Build secure, scalable, and efficient backend systems using Golang .</li><li>Develop and deploy smart contracts and interact with various blockchain protocols (EVM, Layer 2, etc.)</li><li>Collaborate with front-end teams to implement wallet connections and blockchain-based functionalities.</li><li>Conduct code reviews, performance optimization, and ensure best practices in blockchain development.</li><li>Research and integrate new tools, frameworks, and protocols to enhance the existing tech stack.</li></ul>Requirement<ul><li>5+ years of experience in backend or blockchain development.</li><li>Strong hands-on experience with Golang</li><li>Deep understanding of Web3, Ethereum, EVM, and smart contract architecture.</li><li>Experience with Solidity, Hardhat/Foundry, or similar frameworks.</li><li>Familiarity with Layer 2 solutions (Polygon, Arbitrum, Optimism).</li><li>Knowledge of IPFS, Wallet integrations (MetaMask, WalletConnect), and DeFi protocols.</li><li>Proficient with RESTful APIs, microservices architecture, and Docker/Kubernetes.</li><li>Strong problem-solving skills and the ability to work in a fast-paced startup environment.</li></ul>Job Type: HybridJob Time: 3pm to 9pm from office and 11pm to 1 am from homeLocation: DHA Phase 6 LahoreAbout Us:TEKHQS is a global technology solutions provider headquartered in Lake Forest, California, with an offshore team of 300+ experts based in Pakistan. We specialize in Web 2.0 (Web &amp; Mobile App Development), Web 3.0 (Blockchain &amp; Crypto Platform Development), AI/ML Solutions, and ERP services as a certified partner of SAP S/4HANA, Oracle NetSuite, and Microsoft Dynamics 365 Business Central. Our expertise includes implementation, training, customization, integration, support, IT staff augmentation, and certified ERP consultancy.Job Type: Full-timeWork Location: In person

Senior Blockchain Developer (Web3 | Golang )

Cube Discipline

About the RoleWe are seeking an experienced Blockchain Developer with strong proficiency in the MERN stack and hands-on experience with blockchain integrations. The ideal candidate will be responsible for building scalable web applications, developing backend APIs, and integrating blockchain functionalities into modern web platforms.Key ResponsibilitiesDevelop and maintain responsive front-end applications using Next.js and React.jsBuild and manage Node.js / Express.js backend services and RESTful APIsIntegrate third-party APIs for authentication, payments, and blockchain dataWork with EVM-compatible blockchains (Ethereum, BSC, Polygon) and SolanaImplement smart contract interaction layers using web3.js, ethers.js, or solana/web3.jsCollaborate with cross-functional teams to design and deploy production-grade decentralized applications (dApps)Optimize application performance, scalability, and securityRequirementsMinimum 3 years of professional experience with the MERN stack (MongoDB, Express, React, Node)Strong command of Next.js and frontend performance best practicesExperience integrating third-party APIs and working with WebSocket connectionsSolid understanding of blockchain fundamentals, wallets, and smart contractsProficiency in web3.js, ethers.js, or solana/web3.jsFamiliarity with Git-based workflows, CI/CD pipelines, and deployment tools (Vercel, AWS, or Docker)Preferred QualificationsExperience with DeFi, Tokens, NFTS, or tokenization projectsProficiency in TypeScriptKnowledge of cloud infrastructure and database designUnderstanding of security practices and blockchain transaction handlingJob Type: Full-timeWork Location: In person

Mern/Blockchain Developer

Sharematch

About ShareMatchShareMatch is a fast-growing fintech startup building a digital trading marketplace. We&rsquo;re reshaping how retail investors participate in global markets by making trading more accessible, transparent and efficient.The roleYou will design and ship the smart contract layer that powers token creation, trading controls and on-chain settlement. You&rsquo;ll implement contract-level eligibility checks, integrate an hourly price oracle and ensure our vault accounting and NAV updates reflect both oracle inputs and on-venue trading activity. You&rsquo;ll help define standards, testing, threat models and audit scope from day one.What you&rsquo;ll build<ul><li>Smart contracts for issuance and redemption using a vault pattern aligned to ERC-4626 for on-chain asset accounting and standardisation.</li></ul><ul><li>Transfer-restricted units with whole-unit granularity, enforceable allowlists and contract-level KYC/AML checks for all movements.</li></ul><ul><li>On-chain settlement flows that integrate with our off-chain venue alongside the oracle feed.</li></ul><ul><li>Oracle integration to publish index values on an hourly cadence with robust failure handling and dispute windows.</li></ul><ul><li>Operator and governance controls including pausability, upgrade strategy, role-based access and audit hooks.</li></ul><ul><li>Secure custodial wallet flows including address lifecycle, recovery procedures and permissions.</li></ul>Key responsibilities<ul><li>Own end-to-end smart contract design, implementation, reviews and gas/performance tuning</li></ul><ul><li>Model contract-level controls for KYC/AML, sanctions and geography gating via allowlists and roles</li></ul><ul><li>Implement hourly oracle updates</li></ul><ul><li>Write clear specs, sequence diagrams and runbooks; maintain high signal documentation</li></ul><ul><li>Build robust test suites: unit, integration, invariant and property-based tests</li></ul><ul><li>Lead security practices: threat modelling, secure coding, CI checks, pre-audit hardening, audit remediation</li></ul><ul><li>Collaborate with backend to deliver Python services for oracle publishing, allowlist management and monitoring</li></ul><ul><li>Partner with compliance and Shariah advisors to ensure contract behavior matches approved rules and guardrails</li></ul>Minimum qualifications<ul><li>Strong Solidity and EVM fundamentals; deep familiarity with token standards and vault patterns</li></ul><ul><li>Proven experience shipping audited, production smart contracts on an L2 network</li></ul><ul><li>Hands-on with Foundry or Hardhat; adept with fuzzing, invariants, coverage and static analysis</li></ul><ul><li>Comfort implementing contract-level transfer restrictions, role-based controls and allowlists</li></ul><ul><li>Experience integrating oracles and handling stale feeds, circuit breakers and fallback logic</li></ul><ul><li>Security mindset: reentrancy, access control, upgrade risk, precision/rounding, DoS vectors</li></ul>Nice to have<ul><li>Prior work with custody models and operational security for custodial wallets</li></ul><ul><li>Knowledge of zk rollups, permissioned L2s and data-availability considerations</li></ul><ul><li>Familiarity with compliant tokenisation and regional regulatory expectations</li></ul><ul><li>Python expertise for data publishing, admin CLIs and monitoring pipelines</li></ul>Tooling and ways of working<ul><li>Languages &amp; libs: Solidity, OpenZeppelin</li></ul><ul><li>Testing: Foundry first-class (forge, invariant tests), optional Hardhat for interop</li></ul><ul><li>Security &amp; CI: Slither, Echidna, MythX/Mythril or equivalent in CI; gas snapshots; ABIs locked; deploy scripts reviewed</li></ul><ul><li>Versioning &amp; releases: Semantic versioning; deploy plans with rollback; multi-sig controlled admin; timelocks for sensitive changes</li></ul><ul><li>Monitoring: On-chain event telemetry, alerting on oracle update failures and transfer anomalies</li></ul><ul><li>Audits: Formal third-party audits before mainnet release; you will drive pre-audit readiness and post-audit fixes</li></ul>Compliance and controls<ul><li>Enforce eligibility, residency, and sanctions checks via allowlists and role-gated functions</li></ul><ul><li>Whole-unit issuance and transfer restrictions between verified, whitelisted addresses only; redeemable against underlying vault assets per ruleset.</li></ul>Job Type: Full-timeAbility to commute/relocate:<ul><li>Dubai: Reliably commute or planning to relocate before starting work (Required)</li></ul>Application Question(s):<ul><li>Do you require us, now or in the future, to sponsor your visa?</li><li>Are you an immediate joiner?</li></ul>Education:<ul><li>Bachelor's (Required)</li></ul>Experience:<ul><li>Blockchain: 2 years (Required)</li></ul>Language:<ul><li>English (Required)</li></ul>Location:<ul><li>Dubai (Required)</li></ul>

Blockchain Developer

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