Engineering Manager

Job Title : Full Stack TypeScript Developer (Web3)

Location : Remote

Experience Level : 3+ Years

Role Overview :

Join our innovative, funded Web3 startup as a Full Stack TypeScript Developer and play a key role in building a wallet-to-wallet audio calling platform. You’ll collaborate with cross-functional teams to deliver a seamless user experience by integrating real-time communication, blockchain payments, and advanced analytics into our platform.

Key Responsibilities:

Development & Blockchain Integration :

• Design and develop a responsive React + TypeScript frontend using Vite.
• Build a scalable TypeScript, Express.js backend to manage wallets and on-chain transactions.
• Integrate wallet connection frameworks like RainbowKit and Wagmi.
• Implement blockchain payment systems using Superfluid Finance and on-chain revenue sharing with 0xSplits.

Real-Time Communication :

• Develop and optimize real-time audio streaming for calls and Spaces using Jitsi or 100ms.
• Ensure low-latency performance, scalability, and smooth user interactions for high-concurrency scenarios.

Data Management & Analytics :

• Manage relational data with Drizzle ORM and Neon Postgres.
• Develop analytics features using The Graph or custom indexers to query blockchain data effectively.

Collaboration & Documentation :

• Collaborate closely with product, design, and blockchain teams to align on technical solutions and goals.
• Document APIs, workflows, and architectural decisions to ensure clarity and smooth handoffs.

Required Skills:

• Strong proficiency in React, TypeScript, and Express.js.
• Hands-on experience with blockchain tools such as ethers.js, Superfluid, 0xSplits, and The Graph.
• Familiarity with real-time audio communication systems like Jitsi or 100ms.
• Expertise in relational databases like Postgres and scalable storage solutions.
• Excellent debugging, optimization, and problem-solving skills.

Preferred Qualifications:

• Prior experience in Web3 or blockchain-based applications.
• Knowledge of decentralized systems and protocols.
• Understanding of agile development processes and CI/CD pipelines.
• Strong attention to detail with the ability to write clean, maintainable code.

What We Offer:

• A chance to work at the forefront of Web3 innovation.
• Fully remote, flexible work environment.
• Competitive salary and equity options.
• Opportunity to make a significant impact in a growing startup.

About CryptoXpress

CryptoXpress is building the world’s easiest platform for crypto and everyday life. We enable users to trade crypto, book flights and hotels, and shop with gift cards - all in one app. Join our fast-paced, mission-driven team shaping the future of digital payments.

Apply Link: https://forms.gle/TMWRMtEDWRjEi3vK8

Role Overview

You will turn business requirements into reliable application logic and functionality, building and maintaining our web and mobile applications using React Native, ReactJS, Node.js, and related technologies. Your work will directly impact our product experience for thousands of users worldwide.

Key Responsibilities

• Develop & Maintain Applications: Build robust features for mobile and web using React Native and TypeScript. Maintain, refactor, and improve the existing codebase.
• Collaborate Across Teams: Work closely with product, design, and backend teams to deliver pixel-perfect UI in line with Figma design systems.
• Business Analysis: Translate business needs into actionable features with clear, reasonable estimations.
• Code Quality: Participate in code reviews, standups, and ensure high code quality by addressing bugs and tech debt.
• Problem Solving: Show good judgment—propose pragmatic alternatives when requirements are unclear or designs can be optimized.
• Integration: Integrate with REST APIs and third-party services. Handle data storage, offline capability, and security.
• Communication: Provide clear, timely updates and feedback during business hours.

Required Skills & Experience

• React Native (Mandatory)
• ReactJS (Web)
• NodeJS (Backend/Server-side)
• JavaScript, TypeScript, HTML, CSS
• API Integration (RESTful services)
• Mobile App Development Lifecycle (prototyping, release, updates)
• Experience with Redux, Flux, unit testing (Jest/Enzyme), and code debugging
• Experience with code quality tools (ESLint, type checking, prop types)
• Knowledge of responsive UI, Figma design compatibility, and pixel-perfect implementation
• Basic understanding of blockchain technologies
• Strong problem-solving and communication skills

Nice-to-Have

• Experience with backend frameworks (Express.js, NestJS, or similar)
• Familiarity with Web3.js or other blockchain libraries
• Exposure to mobile offline storage and push notifications
• Knowledge of security best practices in mobile/web apps

Pro Tip: Tips for Application Success

• Explore CryptoXpress before applying, take 2 minutes to download and try the app so you understand what we're building
• Show your enthusiasm for crypto, travel, and digital innovation
• Mention any self-learning initiatives or personal crypto experiments
• Be honest about what you don't know - we value growth mindsets

Job Description:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
• 7+ years of experience in backend development, with proficiency in Python and/or Golang.
• Strong experience in front-end technologies, particularly React.
• Familiarity with cloud platforms (AWS, GCP, or Azure) and containerization tools like Docker and Kubernetes.
• Knowledge of Apache Spark is highly preferred.
• Solid understanding of database technologies, both relational (e.g., PostgreSQL, MySQL) and NoSQL (e.g., MongoDB, Cassandra).
• Experience with CI/CD pipelines and automated testing frameworks.
• Excellent problem-solving skills and a proactive attitude toward tackling challenges

Skills: Mernstack, Reactjs,experess,nodejs,MongoDB,PostgreSQL,

Domain knowledge: MERN/PERN stack (Mongo/PostgreSQL, ExpressJS, ReactJS, NodeJS)

Requirements:

• Academics (10th, 12th and Bachelors) > 70-75%
• Highly proficient in ReactJS, NodeJS (ExpressJS)
• Basic knowledge of PostgreSQL/MongoDB is a plus
• Should have expertise in developing data driven, responsive, modern web applications
• Aptitude to continuously learn new languages/concepts. Breadth of knowledge is required
• Strong fundamentals in programming concepts
• Knowledge of web development concepts and databases
• A really strong passion to towards technology
• Entrepreneurial attitude

Roles and Responsibilities:

• Develop, deploy and maintain IIoT platform used by the whole of Company
• Roll out similar IoT systems across the globe
• Understanding the functional domain deeply

• Bachelor’s degree in Computer Science, Information Technology, or a similar field.
• Previous experience working as a React.js Developer.(2-8 years)
• In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
• Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
• Experience with user interface design.
• Knowledge of performance testing frameworks including Mocha and Jest.
• Experience with browser-based debugging and performance testing software.
• should have hands-on experience in backend software development using Java.
• should have proven expertise in Spring Boot REST/Microservices.
• should have working experience with relational and NoSQL databases.