The mission of Speechify is to make sure that reading is never a barrier to learning.

Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its 2025 Design Award winner for Inclusivity.  

Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.

Overview

The responsibilities of our Platform team include building and maintaining all backend services, including, but not limited to, payments, analytics, subscriptions, new products, text to speech, and external APIs.

This is a key role and ideal for someone who thinks strategically, enjoys fast-paced environments, is passionate about making product decisions, and has experience building great user experiences that delight users.

We are a flat organization that allows anyone to become a leader by showing excellent technical skills and delivering results consistently and fast. Work ethic, solid communication skills, and obsession with winning are paramount. 

Our interview process involves several technical interviews and we aim to complete them within 1 week. 

What You’ll Do

• Design, develop, and maintain robust APIs including public TTS API, internal APIs like Payment, Subscription, Auth and Consumption Tracking, ensuring they meet business and scalability requirements
• Oversee the full backend API landscape, enhancing and optimizing for performance and maintainability
• Collaborate on B2B solutions, focusing on customization and integration needs for enterprise clients
• Work closely with cross-functional teams to align backend architecture with overall product strategy and user experience

An Ideal Candidate Should Have

• Proven experience in backend development: TS/Node (required)
• Direct experience with GCP and knowledge of AWS, Azure, or other cloud providers
• Efficiency in ideation and implementation, prioritizing tasks based on urgency and impact
• Preferred: Experience with Docker and containerized deployments
• Preferred: Proficiency in deploying high availability applications on Kubernetes

What We Offer

• A dynamic environment where your contributions shape the company and its products
• A team that values innovation, intuition, and drive
• Autonomy, fostering focus and creativity
• The opportunity to have a significant impact in a revolutionary industry
• Competitive compensation, a welcoming atmosphere, and a commitment to an exceptional asynchronous work culture
• The privilege of working on a product that changes lives, particularly for those with learning differences like dyslexia, ADD, and more
• An active role at the intersection of artificial intelligence and audio – a rapidly evolving tech domain

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace. 

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

The mission of Speechify is to make sure that reading is never a barrier to learning.

Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its App of the Day.

Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.

Overview

With the growth of our iOS app, being the #18 productivity app in the App Store category and also our recent recognition as Apple's 2025 Design Award for inclusivity, we find the need for a Senior iOS Engineer to help us support the new user base as well as work on new and exciting projects to push our missing forward.   

This is a key role and ideal for someone who thinks strategically, enjoys fast-paced environments, passionate about making product decisions, and has experience building great user experiences that delight users.

We are a flat organization that allows anyone to become a leader by showing excellent technical skills and delivering results consistently and fast. Work ethic, solid communication skills, and obsession with winning are paramount. 

Our interview process involves several technical interviews and we aim to complete them within 1 week. 

What You’ll Do

• Opportunity to lead key engineering and product decisions
• Actively shipping production code for the Speechify iOS app
• Work within a dedicated product team
• Participate in product discussions to shape the product roadmap
• Maintain and enhance the existing complex app architecture

An Ideal Candidate Should Have

• Experience. You've worked on products that scaled to a large user base
• Track record. You have worked on various products from inception to decent traction. You have been responsible for engineering the product
• Customer obsession. We expect every team member whose responsibilities directly impact customers to be constantly obsessed about providing the best possible experience
• Product thinking. You make thoughtful decisions about the evolution of your product and support internal teams and designers into taking the right direction
• Speed. You work quickly to generate ideas and know how to decide which things can ship now and what things need time
• Focus. We’re a high-growth startup with a busy, remote team. You know how and when to engage or be heads down
• Technical skills. Swift, SwiftUI

Technical Requirements:

• Swift Programming Language
• SwiftUI experience
• Experience in Multithreading Programming
• Working with CI/CD infrastructure
• Experience with Fastlane
• SOLID principles, the ability to write every single class according to SOLID
• Experience with Git and understanding of different Git strategies

What We offer:

• A fast-growing environment where you can help shape the company and product
• An entrepreneurial crew that supports risk, intuition, and hustle
• The opportunity to make a big impact in a transformative industry
• A competitive salary, a collegiate atmosphere, and a commitment to building a great asynchronous culture
• Work on a product that millions of people use and where daily feedback includes users sharing that they cried when they first found the product because it was so impactful on their lives
• Support people with learning differences like Dyslexia, ADD, Low Vision, Concussions, Autism, and Second Language Learners, and give reading superpowers to professionals all over the world
• Work in one of the fastest growing sectors of tech: Intersection of Artificial Intelligence and Audio

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace.

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

My client is a leading Web3 and Decentralized Finance (DeFi) company and looking for a Senior Smart Contract Engineer (Solidity/Rust/Move) roles.

Core Responsibilities

• Protocol Architecture & Deployment: Architect and implement core on-chain protocols for a Decentralized Exchange (DEX), including capital vaults, clearinghouses, and settlement engines.

• On-Chain Transaction Logic: Develop the underlying logic for clearing and settlement processes, ensuring high-fidelity integration with off-chain high-performance matching engines.

• Oracle System Integration: Design and maintain robust Oracle contract frameworks to support real-time price feeds, data validation, and asset valuation.

• Security & Audit Management: Lead smart contract security hardening initiatives, collaborate with external auditors to rectify vulnerabilities, and oversee mainnet deployments.

• End-to-End Synergy: Partner with backend and QA teams to bridge the gap between off-chain trade commands and on-chain fund movements for seamless execution.

Candidate Requirements

• Academic Background: Degree in Computer Science, Software Engineering, Cryptography, or a related technical field.

• Solidity Mastery: 3+ years of professional Solidity development with deep expertise in EVM mechanics, Gas optimization techniques, and ERC standards.

• DeFi Domain Expertise: 2+ years of specialized experience in DEX clearing and settlement workflows, including sophisticated Oracle integration.

• Multi-Chain Proficiency: Proficient in Rust or Move programming, with the ability to lead contract module development across diverse blockchain ecosystems.

• Ecosystem Knowledge: Strong understanding of the architectural paradigms of high-performance chains such as Solana or Sui.

Preferred Qualifications

• Experience developing advanced vault standards (e.g., ERC-4626, ERC-7540, or ERC-7575) and complex accounting logic.

• Familiarity with advanced security methodologies, including Fuzzing or Formal Verification.

• Proven track record of successful smart contract audits or hands-on experience in incident response and protocol hardening.

We are seeking a seasoned Backend Engineer with deep expertise in decentralized finance (DeFi) to lead the architectural design and development of our client's high-performance DEX platform. You will be responsible for building the core components of a world-class trading environment, focusing on ultra-low latency, high concurrency, and uncompromising security.

Key Responsibilities

• Architectural Leadership: Design and develop the core server-side architecture for a Decentralized Exchange (DEX).

• Core Module Engineering: Lead the implementation of critical modules, including matching engines, order books, market data broadcasting, risk management, and clearing/settlement systems.

• Infrastructure & Connectivity: Develop and maintain high-performance trading gateways (REST/WebSocket), market data feeds, and K-line services.

• Performance Optimization: Ensure the stability and performance of high-concurrency, low-latency trading systems through rigorous JVM tuning and system-level optimizations.

• Resilience & Security: Build foundational capabilities for data persistence, comprehensive logging, automated backups, and robust disaster recovery protocols.

• Cross-Functional Collaboration: Partner closely with Smart Contract and Frontend teams to ensure seamless end-to-end integration across the entire trading lifecycle.

Required Qualifications & Skills

• Educational Background: Bachelor’s degree or higher in Computer Science, Software Engineering, or a related technical field.

• Java Expertise: 8+ years of professional Java development experience, with mastery of multi-threading, concurrency models, and JVM performance tuning.

• DEX Domain Knowledge: 3+ years of direct experience in DEX/Exchange server-side development, with a deep understanding of matching, clearing, and risk control workflows.

• High-Performance Frameworks: Proven experience with LMAX Disruptor, Chronicle, or similar high-performance frameworks; familiarity with Exchange-core architectures is essential.

• Data Management: Expertise in MySQL, Redis, and MongoDB, including advanced database design, index optimization, and distributed transaction management.

• System Reliability: Deep understanding of multi-active database deployments and disaster recovery; ability to lead team-wide emergency drills.

• Messaging & Streaming: Proficiency in Kafka (consumer groups, partitioning, persistence) and real-time data processing.

• Cloud & DevOps: Hands-on experience with Docker and Kubernetes (Deployment, Service, Ingress, Monitoring); proficiency with AWS or Alibaba Cloud ecosystems (EC2/ECS, RDS, OSS).

Preferred Attributes (Bonus)

• Experience with EVM-based on-chain settlement, Oracles, and off-chain data integration.

• Familiarity with modern observability stacks, including Prometheus, Grafana, and ELK.

• Polyglot capabilities: Ability to develop stable auxiliary services in Golang or Node.js for on-chain data retrieval and analysis.

我们正在支持一个资金充足的下一代 Layer 1 区块链项目。该平台专门用于现实世界资产（RWA）和稳定币的代币化及链上流通，重点关注机构的采用。

团队正在构建基础设施，将传统的 Web2 机构连接到 Web3，拓展链上资产的多样性，解锁新的收益机会，并促进更广泛的投资者参与。他们的使命是帮助企业克服操作、监管和知识障碍，使其能够以安全、合规和可扩展的方式在链上部署资产。凭借深厚的现实世界资产领域专业知识和强大的技术执行能力，团队正在开发面向机构的区块链基础设施和综合去中心化生态系统。

我们正在寻找一位优秀的区块链开发者，专注于区块链内部结构，旨在重新定义我们去中心化网络的性能界限。这个角色适合能够在执行层、虚拟机架构和跨链连接方面解决复杂挑战的技术愿景者。

职责

• 设计和优化高吞吐量虚拟机（VM），关注并行执行和与 EVM 兼容环境的低级调优。
• 主导复杂系统级合约的开发，通过专家审核和 Gas 优化确保最大效率和毫不妥协的安全性。
• 深入研究行业领先协议（如 Aptos、Solana 和 Ethereum）的源代码，以基准测试和实施更优的共识和执行策略。
• 在架构决策中担任主要利益相关者，通过详细的代码审查和工程团队的专业发展，维护工程卓越。
• 设计和部署稳健的互操作性框架，确保网络在更广泛的多链生态系统中保持灵活。

技术要求

• 精通 C++ 和系统级编程，关注高效数据结构和算法复杂性。
• 充分理解虚拟机机制，包括栈管理、状态转换和指令集架构（拥有 WASM 或 MoveVM 经验者尤佳）。
• 证明了开发高风险 Solidity 应用程序的能力，关注安全优先的模式和资源高效的代码。
• 有在基础层面分析并贡献主要公共链基础设施的记录。
• 计算机科学或相关定量领域的学位（优先考虑高级学位）。

高度重视的技能

• 使用 Rust 或 Go 构建高性能后端模块的经验。
• 数据库工程背景（例如，RocksDB/LevelDB 优化）或多线程并行处理经验。

We are supporting a well-funded, next-generation Layer 1 blockchain project. The platform is purpose-built for the tokenization and on-chain circulation of real-world assets (RWA) and stablecoins, with a strong focus on institutional adoption.

The team is building infrastructure that bridges traditional Web2 institutions into Web3, expanding on-chain asset diversity, unlocking new yield opportunities, and enabling broader investor participation. Their mission is to help enterprises overcome operational, regulatory, and knowledge barriers, allowing them to deploy assets on-chain in a secure, compliant, and scalable manner. With deep RWA domain expertise and strong technical execution, the team is developing institutional-grade blockchain infrastructure and a comprehensive decentralized ecosystem designed to support large-scale, real-world asset adoption.

We are seeking a high-caliber Blockchain Developer specializing in blockchain internals to redefine the performance boundaries of our decentralized network. This role is designed for a technical visionary who thrives on solving complex challenges within execution layers, virtual machine architecture, and cross-chain connectivity.

Responsibilities 

• Architect and refine high-throughput Virtual Machines (VMs), focusing on low-level tuning for parallel execution and EVM-compatible environments.
• Spearhead the development of sophisticated system-level contracts, ensuring maximum efficiency and ironclad security through expert-led audits and Gas optimization.
• Deep-dive into the source code of industry-leading protocols (such as Aptos, Solana, and Ethereum) to benchmark and implement superior consensus and execution strategies.
• Act as a primary stakeholder in architectural decisions, upholding engineering excellence through detailed code reviews and the professional development of the engineering team.
• Design and deploy robust frameworks for interoperability, ensuring the network remains agile within the broader multi-chain ecosystem.

Technical Profile

• Exceptional command of C++ and systems-level programming, with a focus on high-efficiency data structures and algorithmic complexity.
• Comprehensive understanding of VM mechanics, including stack management, state transitions, and instruction set architecture (WASM or MoveVM experience is highly valued).
• Proven ability to engineer high-stakes Solidity applications with a focus on security-first patterns and resource-efficient code.
• A track record of analyzing and contributing to major public chain infrastructures at a foundational level.
• A degree in Computer Science or a relevant quantitative field (Advanced degrees preferred).

Highly Valued Skills

• Experience building with Rust or Go for high-performance backend modules.
• Background in database engineering (e.g., RocksDB/LevelDB optimization) or multi-threaded parallel processing.

A pioneering Custom Tokenization-As-A-Service platform focused on Real-World Assets (RWA) is expanding its engineering team. Backed by strong angel investors and preparing for institutional funding, we partner with licensed exchanges and target Fortune 500 enterprises, AI data centers, and specialized sectors to bring enhanced liquidity and efficiency through tokenization.

We are seeking a talented Frontend Engineer to build intuitive, high-performance user interfaces for our decentralized RWA management platform. You will play a key role in delivering seamless experiences across web and mobile applications, with deep integration into Web3 ecosystems.

Key Responsibilities:

• Design and develop responsive, user-friendly frontend interfaces for our core products, including the Decentralized RWA Data System (DRDS), tokenization dashboard, and DeFi asset management platform.
• Implement both web (React/Vue/Next.js) and cross-platform mobile (React Native/Flutter) applications, ensuring consistent UX across devices.
• Integrate Web3 functionalities such as wallet connections (e.g., MetaMask, WalletConnect), smart contract interactions (via ethers.js/web3.js), on-chain data querying (The Graph, Subgraphs), and transaction signing/monitoring.
• Collaborate closely with backend engineers, smart contract developers, and product managers to translate requirements into polished, performant UIs.
• Optimize application performance, accessibility, and security (e.g., handling private keys safely, preventing phishing vectors).
• Contribute to UI/UX improvements based on user feedback from enterprise clients, community, and internal testing.
• Ensure interfaces support multilingual needs (primarily Chinese, with English fallback).
• Participate in code reviews, testing, and deployment processes to maintain high-quality standards.

Qualifications:

• 4+ years of professional frontend development experience within blockchain and related industries.
• Strong proficiency in modern JavaScript/TypeScript frameworks: React.js (with hooks, context, Redux/toolkit) for web; React Native or Flutter for mobile.
• Proven experience building applications with Web3 integrations (e.g., dApp frontends, DeFi protocols, NFT marketplaces, or RWA platforms).
• Solid understanding of blockchain concepts: wallets, transactions, EVM-compatible chains, token standards (ERC-20, ERC-721, etc.), and decentralized identity.
• Experience with Web3 libraries (ethers.js, web3.js, viem, wagmi) and tools like Alchemy/Infura, The Graph, or IPFS.
• Familiarity with responsive design, state management, performance optimization, and testing frameworks (Jest, Cypress, React Testing Library).
• Ability to work in a fast-paced startup environment with cross-functional teams.

Preferred Skills:

• Experience in DeFi or RWA projects (e.g., tokenization platforms, lending/borrowing protocols, yield aggregators).
• Knowledge of traditional finance concepts and how they bridge to DeFi (advantageous for enterprise-focused features).
• Proficiency in building data-heavy dashboards (charts, real-time updates via WebSockets).
• Contribution to open-source Web3 projects or active participation in DeFi communities is a plus.

Language Requirements:

• Native or fluent in Mandarin Chinese (primary working language).
• Good command of English (reading/writing technical documentation; speaking is a plus).

• Design and develop a dependable, scalable, and high-performance car rental indicative pricing and static information system.
• Collaborate with teammates to design and implement car hire/flights system.
• Continuously enhance system design and architecture to maintain simplification and high service performance.
• Establish robust design and engineering principles. And contribute to the team’s success.
• Engage in continuous learning and exploration, aiming to become a foundational member of a growing team.

• Bachelor’s degree or higher in computer science or a related technical field.
• Minimum of 1～2 years of experience in backend system development.
• Demonstrated expertise in Java or Python programming languages.
• Experienced in distributed computing and cloud computing-related technologies, including microservices, containerization technology(Docker), and cloud service platforms(AWS).
• Experienced in at least one type of relational or non-relational database. Skilled in SQL language.
• Excellent communication skills and the ability to collaborate effectively with diverse teams and individuals.
• Exceptional ability to learn quickly, comprehending domain knowledge swiftly within a short timeframe.

• Bonus points:
• Experienced in Kubernetes.
• Experienced in frontend framework development, such as React.

About Us:

We’re a fast-moving, AI-leveraged rapid prototyping lab creating innovative products in martech, fintech, web apps, websites, crypto, and more. Our team thrives on versatility, speed, and creativity, delivering solutions that blend cutting-edge tech with real-world impact.

Job Summary:

As an AI Leveraged Product Generalist, you’ll contribute across multiple areas—such as coding, design, multimedia, marketing, or project management—to build and launch prototypes and MVPs. You’ll collaborate with specialists and leverage AI tools to deliver solutions in a rapid development environment, ideally spanning several of our domains (martech, fintech, web, crypto), with the ability to cover all being a bonus but not Required.

Key Responsibilities:

• Leverage AI-driven tools (e.g., Cursor for coding, Figma AI for single domain design, Jasper for marketing and etc.) to accelerate product development across multiple domains where applicable.
• Contribute to web apps, websites, multimedia or backend systems using modern frameworks as needed.
• Design user interfaces, wireframes, or prototypes for intuitive products when required.
• Create multimedia assets (e.g., videos, graphics) or marketing content to support launches as part of your skill set.
• Manage project timelines, coordinate tasks, or define requirements in areas where you excel.
• Deliver functional prototypes or MVPs in at least two or more domains (e.g., martech, fintech, web, crypto), with the potential to expand across all.

Qualifications:

• 2+ years of experience in at least two of: software development, UX/UI design, multimedia production, marketing, or project management. Fresh Graduates with relevant experience leveraging AI tooling will be considered.
• Proficiency in relevant tools for your strongest areas (e.g., React, Figma, Adobe Suite, Hootsuite, Jira).
• Familiarity with AI-driven tools (e.g., code generation, design automation, content creation) is a plus.
• Strong problem-solving skills and a willingness to adapt across multiple domains.
• Ability to thrive in a fast-paced, prototype-driven setting with shifting priorities. 
• Bonus: Experience or interest in martech (e.g., adtech), fintech (e.g., payments), or crypto (e.g., blockchain).

#LI-REMOTE

About Us:

We’re a fast-moving, AI-leveraged rapid prototyping lab creating innovative products in martech, fintech, web apps, websites, crypto, and more. Our developers are the backbone of our mission to build and iterate at speed, delivering solutions that blend cutting-edge tech with real-world impact.

Job Summary:

As a Software Developer, you’ll build and iterate on prototypes and MVPs across our diverse product stack. Working closely with product managers and marketing professionals, you’ll leverage AI tools and frameworks to deliver scalable, secure, and high-performance solutions in a rapid development environment.

Key Responsibilities:

• Utilize AI-driven development tools like Cursor, GitHub Copilot, Replit AI, or Tabnine to streamline coding, debugging, and iteration on prototypes.
• Develop and maintain web apps, websites, and backend systems using modern frameworks (e.g., React, Node.js, Python, etc.).
• Integrate AI/ML models into products (e.g., recommendation systems for martech, fraud detection for fintech).
• Build and test smart contracts or blockchain-based features for crypto-related projects.
• Optimize code for performance, scalability, and security in cloud environments (e.g., AWS, Azure).
• Contribute to architecture decisions and adopt best practices in an agile, iterative workflow.

Qualifications:

• Familiarity with AI-driven development tools (e.g., code generation, automated testing) is a must.
• 2+ years of software development experience, with proficiency in at least one modern stack (e.g., JavaScript, Python, Go, Rust). Fresh Graduates with relevant experience leveraging AI tooling will be considered.
• Experience with REST APIs, databases (SQL/NoSQL), and cloud platforms.
• Familiarity with AI/ML integration (e.g., TensorFlow, PyTorch, or API-based AI services).
• Knowledge of blockchain development (e.g., Solidity, Rust, Move) is a plus but not a must.
• Strong problem-solving skills and ability to thrive in a fast-paced, prototype-driven setting.
• Bonus: Experience in martech (e.g., adtech APIs), fintech (e.g., payment gateways), or crypto.

#LI-REMOTE