Contract Senior Web Engineer

Join Binance, the foremost global blockchain ecosystem and the world’s leading cryptocurrency exchange, where we serve over 300 million users across more than 100 countries. Our commitment to security, transparency, rapid trading, and deep liquidity empowers us to deliver a comprehensive suite of digital asset products. Our offerings encompass trading, finan…

Join Binance, the premier global blockchain ecosystem powering the largest cryptocurrency exchange worldwide, boasting over 300 million users across more than 100 countries. We prioritize industry-leading security, transparency of user funds, lightning-fast trading engine, and deep liquidity, offering an unparalleled portfolio of digital asset products. Our diverse offerings span trading, finance, education, research, payments, institutional services, Web3 features, and beyond. At Binance, we harness the potential of digital assets and blockchain technology to create an inclusive financial ecosystem that champions the freedom of money and enhances financial accessibility for individuals globally.About Binance SquareBinance Square is designed to be the ultimate social platform for discovering the latest trends in Web3 and cryptocurrency. Featuring a wide array of content from distinguished crypto experts, passionate enthusiasts, and reputable media sources, this platform connects content creators with their followers, personalizing user feeds based on engagement history. Become part of our dynamic team that is redefining social interaction within the crypto realm.

Join Binance, the world's foremost blockchain ecosystem and the leading cryptocurrency exchange by trading volume and user registrations. Trusted by over 300 million users across 100+ countries, we pride ourselves on our unparalleled security measures, transparent management of user funds, lightning-fast trading engine, and extensive liquidity. Our diverse portfolio of digital asset products includes trading and finance solutions, educational resources, research, payment methods, institutional services, and innovative Web3 features. At Binance, we harness the potential of digital assets and blockchain technology to create an inclusive financial ecosystem that fosters monetary freedom and enhances financial access globally.Discover Binance SquareBinance Square is envisioned as the ultimate social platform for the latest developments in Web3 and cryptocurrency. Offering a rich array of content from distinguished crypto experts, enthusiastic advocates, and credible media outlets, it bridges the gap between content creators and their audiences by personalizing feeds based on user engagement history. Join our dynamic team and contribute to the evolution of social interaction within the crypto community.

At RevenueCat, we simplify the process of building and scaling in-app subscriptions. Since our inception in Y Combinator’s S18 batch, we have emerged as the leading monetization platform for mobile applications. Currently, we power over 40% of newly released subscription apps and manage an impressive annual purchase volume exceeding $10 billion. Our platform supports developers of all sizes, from independent creators to teams at major companies like OpenAI, helping them optimize and enhance their revenue.We are a remote-first team of over 120 professionals located across 25 countries. Guided by core values such as Customer Obsession, Always Be Shipping, Own It, and Balance, we invite individuals who want their work to positively impact hundreds of millions of users and aid developers in monetizing their creations.The RoleWe are on the lookout for a Senior SDK Engineer, specializing in iOS, to join our dynamic team. This role involves designing, developing, and supporting comprehensive features and products that empower developers to increase their earnings. We seek a candidate who is not only product-focused and customer-oriented but also passionate about creating mobile SDKs that deliver an exceptional developer experience.While the primary focus will be on our iOS SDK, contributions to our Android SDK and hybrid SDKs will also be expected. Experience in these other platforms is not mandatory, but enthusiasm for working on them is essential.

Join Jump (jumpapp.com), a rapidly expanding company that offers an exciting and dynamic work environment! Our team is composed of exceptional talent, and we pride ourselves on delivering top-notch mobile applications that our customers love. If you’re seeking a stimulating career path, look no further!We are on the lookout for skilled engineers to contribute to the development of outstanding mobile applications using Kotlin and Jetpack Compose.We value autonomy, agency, and ownership among our team members. Passion, excitement, and an intelligent curiosity about mobile development challenges and solutions are essential for success in this role.We appreciate kindness, empathy, and a collaborative spirit as we take collective responsibility for our projects.

Geo is revolutionizing the user interface landscape for blockchains and decentralized networks. As a pioneering team that contributed to the creation of The Graph, a fundamental web3 infrastructure protocol, we are dedicated to extending decentralization globally. We believe that public knowledge should be a shared resource, accessible to everyone, regardless of their preferred method. With Geo, communities can effectively organize information into a knowledge graph and achieve consensus on the state of that information—truly embodying the semantic web.By constructing a new web atop verifiable information, we empower users and communities. Integrating programmable money and voting systems allows us to scale human coordination, establishing new internet-native institutions—Geo is at the forefront of this movement.As an iOS Engineer, you will play a key role in enhancing the iOS experience for Geo, taking ownership of the app's architecture and bringing innovative functionalities to life through meticulously designed user interfaces. This creative position reports directly to the founder.

At Speechify, our mission is to eliminate barriers to learning through innovative technology. As a Senior iOS Engineer, you will play a pivotal role in enhancing our iOS app, which is celebrated as the #18 productivity app on the App Store and recognized with Apple’s 2025 Design Award for inclusivity. You will be part of a 100% remote team dedicated to creating exceptional user experiences by developing and maintaining our complex app architecture while actively contributing to product decisions and discussions. Join us in pushing the boundaries of what's possible in text-to-speech technology.

Join Platacard as a Software Engineer specializing in Android development. In this role, you'll work on creating innovative mobile solutions that enhance user experiences. Collaborate with a dynamic team of developers and designers to build robust applications that meet our users' needs.

At Speechify, we are driven by the mission to eliminate reading barriers and enhance learning experiences. Our innovative text-to-speech technology empowers over 50 million users to effortlessly convert any reading material—from PDFs and books to Google Docs and websites—into engaging audio. Our product suite includes the iOS app, Android app, Mac app, Chrome extension, and web app. With accolades such as Chrome Extension of the Year and Apple's App of the Day, we are proud of our achievements in making reading accessible for everyone.As a fully remote organization, we are home to nearly 200 talented individuals from diverse backgrounds, including frontend and backend engineers, AI research scientists, and experts from renowned companies like Amazon, Microsoft, and Google, as well as graduates from prestigious institutions such as Stanford. We foster a collaborative and dynamic work environment without a centralized office.Position OverviewTo support our rapidly growing iOS app—currently ranked as the #18 productivity app in the App Store and recently recognized with Apple’s 2025 Design Award for Inclusivity—we are seeking a Senior iOS Engineer. This pivotal role requires a strategic thinker who thrives in fast-paced environments and is passionate about creating exceptional user experiences while driving product innovation.Our flat organizational structure empowers team members to take on leadership roles by demonstrating technical excellence and delivering consistent results. A strong work ethic, effective communication skills, and a relentless drive to succeed are essential attributes we value.The interview process will include multiple technical assessments, with a goal of completing them within one week.

Join Binance, the world's leading blockchain ecosystem and the largest cryptocurrency exchange, as a Senior Android Architect specializing in Performance Optimization and AI. You will be pivotal in designing and enhancing the infrastructure that supports our innovative platforms, ensuring seamless user engagement and interaction. As part of our Experience & Connectivity Team, you will contribute to building cutting-edge solutions that enhance our digital ecosystem while working 100% remotely from the comfort of your home.

Join Binance, a premier global blockchain ecosystem and the leading cryptocurrency exchange by trading volume and registered users. We are dedicated to providing our 300 million users across 100+ countries with unparalleled security, transparency of user funds, speedy trading engine performance, deep liquidity, and an exceptional range of digital asset products. Our services span trading and finance, education, research, payments, institutional services, and cutting-edge Web3 features. We harness the power of digital assets and blockchain technology to foster an inclusive financial ecosystem that enhances financial freedom and accessibility worldwide. As a member of our Experience & Connectivity Team, you will play a pivotal role in architecting and maintaining the infrastructure that supports seamless user interactions and cultivates a thriving community. If you are passionate about developing innovative solutions that make a significant impact, we invite you to apply and join our dynamic, forward-thinking team.

The mission of Speechify is to eliminate barriers to reading and learning.With over 50 million users benefiting from our innovative text-to-speech solutions, Speechify transforms various reading materials—including PDFs, books, Google Docs, news articles, and websites—into audio, enabling users to absorb information more efficiently and effectively. Our suite of products features an iOS app, Android App, Mac App, Chrome Extension, and Web App. Recent accolades include being named Chrome Extension of the Year by Google and receiving Apple’s Design Award for Inclusivity in 2025.Our team, composed of nearly 200 talented professionals worldwide, operates in a fully remote environment—eliminating the need for a physical office. Our diverse workforce includes frontend and backend engineers, AI research scientists, and industry experts from leading companies such as Amazon, Microsoft, and Google, as well as alumni from prestigious PhD programs like Stanford and successful startups like Stripe, Vercel, and Bolt.OverviewAs our Android app continues to excel as the leading text-to-speech application in the Play Store, we are seeking a dynamic Senior Android Engineer to support our expanding user base and to engage in exciting new projects that will drive our mission forward. This pivotal role is perfect for strategic thinkers who thrive in fast-paced settings, are passionate about making impactful product decisions, and have a proven track record of creating exceptional user experiences.Our flat organizational structure empowers all team members to take on leadership roles by showcasing technical prowess and delivering results swiftly. A strong work ethic, effective communication skills, and a relentless drive for success are essential attributes.Our interview process consists of several technical assessments, typically wrapped up within one week.

At Speechify, we are on a mission to eliminate barriers to learning through reading. With over 50 million users leveraging our text-to-speech technology to transform various content formats into engaging audio experiences, we are looking for a Senior Android Engineer to take charge of our rapidly growing Android app, the most popular text-to-speech application on the Play Store. In this pivotal role, you will shape the future of our Android team, collaborate closely with our design and engineering teams, and contribute to the development of innovative features that enhance user experience. We value strategic thinkers who thrive in dynamic environments, are passionate about impactful product decisions, and possess a strong commitment to delivering exceptional results. Join our entirely remote team of talented individuals from prestigious companies and institutions, and become a leader by showcasing your technical expertise and work ethic.

Join Proof, the pioneering identity-assured transaction management platform, as a Senior Mobile Application Engineer. In this pivotal role, you will be responsible for designing, developing, and maintaining our mobile applications, enhancing user experience, and ensuring the highest quality standards. Your expertise will contribute to our mission of digitizing trust for essential transactions in a digital-first world. Be part of our innovative team that has already transformed digital commerce since 2015, achieving milestones such as the first online real estate closing and online mortgage transactions.

Join Canonical as a Web/UI Engineer, where you'll craft dynamic and reliable user experiences using JavaScript, CSS, React, and Flutter. You'll be at the forefront of developing Canonical's enterprise products, acting as the interface for our users while ensuring consistency across our platforms. Collaborate with our central team to enhance our open-source React toolkit and Vanilla Framework, aiming to build high-performance and accessible interfaces. This role offers the chance to contribute to both web and Ubuntu engineering, utilizing REST APIs and focusing on API design as a critical aspect of your development process. We value innovation, so your passion for open-source software and cutting-edge web technologies will be essential as you help us create exceptional user experiences.

Remote builds a platform that helps organizations manage global employment, making it easier for businesses to recruit, pay, and oversee international teams. The company’s fully remote structure brings together team members from six continents, each contributing unique perspectives to the ongoing development of Remote’s HR platform. Automation and AI are woven into daily work, supporting efficient and compliant operations. Role overview The Senior Backend Engineer joins a cross-functional group that includes Frontend, Backend, SRE, and QA specialists. Teams are organized by product vertical, and the specific assignment will be determined during the interview process based on both business needs and personal interests. The main focus of this role is building tools, APIs, and integrations for one of Remote’s core products. Key technologies Elixir and Phoenix for backend development Postgres as the primary database React and Next.js on the frontend GitLab for version control and CI/CD AWS for hosting Continuous integration enables frequent deployments throughout the day. For more detail on engineering practices, see the Engineering Rulebook. What this job can offer Challenging projects that support global collaboration between businesses and individuals Opportunities to make a direct impact as the company grows A supportive and flexible environment that values both personal and professional growth Location This is a fully remote position open to candidates anywhere in the world.

Join Raya as a Senior Backend Engineer, where your passion for backend engineering will be recognized and valued! We are looking for an experienced professional excited to work within a Node.js environment. The ideal candidate will possess over 6 years of progressive experience, showcasing both results and leadership capabilities in their previous roles. This is a pivotal moment for our backend team as we navigate through a phase of significant growth.At Raya, we believe in fostering a culture of learning and collaboration, empowering our team members to lead solutions to challenging problems and evolve into their best selves. You will play a crucial role in supporting our backend initiatives in messaging, connectivity, and location-based mapping projects. A successful candidate will demonstrate diligence in designing scalable software architecture and embrace Raya’s vision of enhancing lives through meaningful, in-person connections.We offer a robust benefits package that includes comprehensive medical and dental coverage, a daily food delivery allowance of $50, equity-based compensation, a vibrant company culture, ample learning opportunities, unlimited vacation, 12 weeks of paid parental leave, and an annual $1,000 travel stipend for personal growth and exploration, reflecting our core values of human connection, empathy, and curiosity.

We are seeking a talented German Language Specialist to join our team as a Freelance AI Trainer for an exciting project focused on Android devices. In this role, you will be integral in enhancing the AI capabilities by providing insights and expertise in the German language. Your contributions will directly impact the effectiveness of AI interactions and user experiences.As a Freelance AI Trainer, you will work remotely, allowing you the flexibility to manage your schedule while collaborating with a dynamic team dedicated to innovation in technology and language processing.

Job OverviewAt Railway, our mission is to empower software engineers with advanced tools, enabling them to focus on creation rather than setup. We strive to revolutionize the experience of software development.As a Senior Platform Engineer specializing in storage, you will play a crucial role in architecting high-performance, reliable block and object storage systems that support millions of applications. Your innovative designs for both software and hardware will be pivotal in enhancing our infrastructure and driving our company's infinite scalability.“A successful design is one that goes unnoticed; a system that self-manages and just works.”- Inspired by Radia PerlmanIntrigued? Explore our team's exciting projects through these blog posts: 1, 2, 3.Curious about our work culture? Discover how we operate through this engaging series: 1, 2, 3, 4.