Web3 Full-Stack Developer
Squadsy
DeFiGuard is a real-time risk monitoring and threat detection platform for DeFi protocols. We help users and protocol teams spot exploits, flash loan attacks, oracle manipulation, and suspicious on-chain activity before funds are lost. Our stack spans a React dashboard, Node.js services, and smart contracts across multiple EVM chains.
We're looking for a full-stack engineer who can move fluidly between polished frontend work and the backend infrastructure that watches the chain in real time.
### **What You'll Do**
* Build the DeFiGuard dashboard in React/Next.js — real-time alerts, risk scores, protocol health views, and transaction forensics
* Develop Node.js services that ingest and index on-chain data across Ethereum, Arbitrum, Base, and Optimism
* Integrate wallet connections and transaction signing (WalletConnect, MetaMask, Coinbase Wallet)
* Write and audit Solidity contracts for our on-chain guardrails and alerting hooks
* Build real-time pipelines (WebSockets, event streams) that surface threats within seconds of detection
* Work with our security researchers to translate detection logic into production code
* Own features end-to-end — from spec to deploy to monitoring
### **Required Skills**
* **Frontend:** React, Next.js, TypeScript, React Query, Tailwind
* **Backend:** Node.js, NestJS or Express, PostgreSQL, Redis, REST & GraphQL
* **Blockchain:** Solidity, Hardhat or Foundry, ethers.js or viem, deep EVM fundamentals
* **Web3 UX:** Wallet connection flows, transaction lifecycle, chain switching, gas estimation
* Understanding of common DeFi attack vectors (reentrancy, flash loans, oracle manipulation, MEV)
* Git, CI/CD, Docker, AWS or GCP
### **Nice to Have**
* Experience with The Graph, subgraphs, or custom indexers
* Familiarity with Tenderly, Alchemy, QuickNode, or similar infra
* Rust or Go
* Prior work at a DeFi protocol, security firm, or on-chain analytics company
* Open-source contributions in the Web3 security space
### **What We Offer**
* Competitive salary + token/equity package
* Fully remote with flexible hours
* Budget for conferences, courses, and hardware
* Small senior team — your work ships fast and matters
### **To Apply**
Send your resume, GitHub, and a short note about a Web3 or security project you've shipped (links to live apps or contracts welcome).
- ...activity before funds are lost. Our stack spans a React dashboard, Node.... ...chains. We're looking for a full-stack engineer who can move... ...and transaction forensics * Develop Node.js services that ingest... ..., deep EVM fundamentals * **Web3 UX:** Wallet connection flows...SuggestedRemote workFlexible hours
- ...Full Stack / Backend Developer (Backend-Focused) Location: Newark, NJ area Employment Type: Contract-to-Hire (W2) Requirements: ~ Experience with Python, Java, and JavaScript; working in distributed systems, object-oriented programming, design patterns, and...SuggestedContract work
JSR Tech Consulting
Portland, OR14 hours ago - ...integration tests that run against real Postgres and Redis in containers. If that sounds like your kind of loop, read on. Design and ship full-stack features across ~40 backend domain modules and a large component- driven frontend. Build and extend LLM-powered features:...SuggestedRemote work
$110.7k - $218.3k
...experiences that support business growth. This role combines full stack development, architecture leadership, and team guidance across... ...business needs into practical technical solutions, mentoring developers, and driving quality across enterprise implementations. Recruiting...SuggestedLocal areaVisa sponsorshipDeloitte
Portland, OR3 days ago$125k - $160k
...clinical ops team managing a workflow exception. The AI Fullstack Developer designs, builds, and iterates on internal AI-powered... ...Retool — from initial prototype to production deployment. Own the full stack: Retool application, Python backend API, and LLM integration layer...SuggestedBoomerang Healthcare
Portland, ORa month ago$139k - $249.26k
..., services, and third-part apps. You'll be responsible for building a full-stack application that is resilient, scalable, and highly available. As an ideal candidate, you’ll have led teams developing modern web experiences with cloud services in a fast-paced, agile environment...Full timeWeekend workAutodesk
Portland, OR3 days ago$122k - $240.5k
...technical solutions using analysis, experience, and decision making Developing solutions to client problems through application of methods... ...experience for all skill areas below:Hands-on experience in full stack software development across frontend and backend technologies....Local areaDeloitte
Portland, OR1 day ago- ...REST APIs to web experiences Ability to understand technology deeply and ability to dive in and debug at any level in the software stack Familiarity with DevOps model of development and QA within a single team Experience with agile development methodologies namely SCRUM...Contract work
BizTek People
Beaverton, OR3 days ago $78.68k - $160.75k
...languages.Test and deploy applications and systems with guidance from senior team members.Revise, update, refactor, and debug code.Develop, support, and maintain applications and technology solutions.Help ensure development efforts meet requirements for scope, functionality...Work at officeLocal areaShift workDeloitte
Portland, OR1 day ago- ...ABOUT THIS JOB We’re looking for an experienced Full-Stack Go Software Engineer to join our innovative technology team at Trend Capital... ...with JavaScript/Typescript. ~2+ years of experience developing REST-like APIs. ~ Advanced Go(lang) experience, including string...Full timeFlexible hours
$166.6k - $208.3k
Since the dawn of aviation, pilots have faced the constant challenge of air resistance, much like sailors navigating the friction of water. Amidst this relentless struggle, the trim tab emerges as an ingenious yet understated marvel. Just as the wheel revolutionized transportation...Mercury
Portland, OR14 hours ago- Immigration runs on data scattered across a dozen government systems and nearly impossible to navigate alone. Lawfully turns it into clarity . We bring that data into a clean, live case timeline that millions of immigrants — and the law firms serving them — depend...
Lawfully
Portland, OR2 days ago - ...Python with deep knowledge of frameworks, tooling, and best practices for building production-grade software. Experience building full-stack applications and deploying scalable software using modern languages and tools. Deep understanding of software architecture,...For contractorsRemote workFlexible hours
Turing
Vancouver, WA7 hours ago $110k - $150k
...Knowledge of agile practices and strong coding standards, including peer code reviews and unit testing Responsibilities: We develop and maintain secure front-end interfaces for the Route 53 DNS management console using React and TypeScript We implement...Full timeInternshipWorldwide- ...with product and design teams (ex-Google/FB/Apple/Microsoft) to develop, test, and launch new features and improvements for our... ...engineering experience Have built mobile apps (and/or web apps) full-stack before Enthusiastic about photo sharing and/or AI and/or social...Full time
Cheez
Vancouver, WA1 day ago - ...variety of open source tools and libraries ~ Experience with the full software development life cycle, including a strong quality... ...development position Technical Skills: Experience with full stack modern web application architecture in a commercial software...RelocationRelocation package
Aravo Solutions Inc
Portland, ORa month ago - ...direction of your supervisor, including Web FOCUS report development, maintenance, testing, deployment/rollout, bug fixing.=> Experience in full implementation life-cycle of application design, development, implementation and rollout, and handling post-production support.=> Be...
Sonsoft
Portland, OR14 hours ago - ...Description Alta Planning + Design seeks an experienced Senior Web Developer (Web Developer III) to join the Web and Digital Studio within... ...across a range of technical environments. The role combines full-stack development, systems integration, technical problem-solving,...Full timeTemporary workWork at officeWork from homeFlexible hours3 days per week
Alta Planning + Design
Portland, ORa month ago $195k - $255k
...review and design standards for your team, and advocating for them beyond your team through your writing and tech talks. You will help develop talent on your team by providing feedback and guidance, and leading by example. What We Look For You have 4+ years of experience...Work at officeRemote workFlexible hours- ...of C#/.NET, Managed C++, MSTest using Visual Studio, Java programming using Eclipse tools and Familiarity with AntExperience of developing a browser plugin for Windows, including knowledge of ensuring compatibility across Chrome, Firefox and Internet ExplorerGeneral understanding...
System Canada Technologies
Portland, OR14 hours ago - ...The Web Developer is responsible for designing and developing internal web applications. Vanguard EMS, Inc. is in the service business. Even with Vanguard’s state of the art technology, vast manufacturing capability, and leading-edge information tools, we wake up every...
Vanguard EMS
Beaverton, OR3 days ago $114k - $142k
...resumes, and will not pay fees to any third-party agency or company that does not have a signed agreement with New Relic.New Relic develops and distributes encryption software and technology that complies with U.S. export controls and licensing requirements. Certain New...Work at officeRemote workFlexible hoursNew Relic
Portland, OR3 days ago- ...customers shop? Do you want to help build the tools that let developers and AI agents create Amazon's shopping experiences, and the platform... ...professional software development experience- 2+ years of full stack development experiencePreferred qualification - Bachelor's...Internship
Amazon
Vancouver, WA14 hours ago - Prodapt Solutions Private Limited seeks an experienced iOS/Swift developer for the WinLink project to design, implement, and test mobile... ...App Store, documentation, and collaboration across a broad tech stack in a remote-capable, U.S.-based environment with occasional...Remote job
$120k - $150k
...insurance claims processing for healthcare providers has grown into a full-suite healthcare technology company. We offer a range of... ...About the Role We are seeking an experienced Senior Full Stack Developer to help build ProPay2.0, our next-generation payment platform...Work at officeLocal areaRemote work- ...development lifecycle and DevOps principles.Essential Responsibilities:- Responsible for designing, developing, testing, operating and maintaining products - Takes full stack ownership by consistently writing production-ready and testable code - Consistently creates...Full timeWork experience placementLocal area3 days per week
US Bank
Gresham, OR2 days ago $144.1k - $192.1k
...understand and act on. As a senior engineer you will help design, develop, and evolve both the back‑end services and the front‑end user... ...CultureYour Challenge:Design, implement, and maintain full‑stack features for our network‑management platform using C# and modern...Full timeRemote workCurtiss-Wright
Portland, OR4 days ago$86.36k - $101.6k
...development lifecycle and DevOps principles.Essential Responsibilities:- Responsible for designing, developing, testing, operating and maintaining products - Takes full stack ownership by consistently writing production-ready and testable code - Consistently creates...Work experience placementLocal area3 days per weekUS Bank
Gresham, OR6 hours ago- ...Python with deep knowledge of frameworks, tooling, and best practices for building production-grade software. Experience building full-stack applications and deploying scalable software using modern languages and tools. Deep understanding of software architecture,...For contractorsRemote workFlexible hours
Turing
Vancouver, WA7 hours ago $148.3k - $171k
..., you will be responsible for designing, developing, testing, and operating reliable backend... ...more inclusive financial system through Web3 technologies. As a U.S. regulated crypto... ...we manage the data of job applicants. Our full notice outlining how data will be processed...Full timeWork experience placementLocal areaRemote workWork from home
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Web3 Full-Stack Developer. Be the first to apply!
- remote .net full stack web developer Portland, OR
- senior java full-stack developer Portland, OR
- c# .net full stack developer Portland, OR
- full stack engineer Portland, OR
- junior full-stack web developer Portland, OR
- senior full stack web developer Portland, OR
- full stack developer Portland, OR
- full-stack ruby on rails developer Portland, OR
- full stack node.js developer Portland, OR
- remote .net full stack web developer