Senior Fullstack Software Engineer - Join Tether in Digital Finance

Join Tether and Transform the Digital Finance LandscapeAt Tether, we are not just creating products; we are at the forefront of a global financial revolution. Our advanced solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to effortlessly integrate reserve-backed tokens across blockchains. Leveraging the power of blockchain technology, Tether allows you to store, send, and receive digital tokens instantly, securely, and globally, all at a significantly reduced cost. Transparency underpins every aspect of our operations, fostering trust in each transaction.Innovate with TetherTether Finance: Our groundbreaking product suite includes the world's most trusted stablecoin, USDT, utilized by hundreds of millions globally, along with pioneering digital asset tokenization services.And that’s just the beginning:Tether Power: Driving sustainable growth, our energy solutions optimize surplus power for Bitcoin mining through eco-friendly practices in state-of-the-art, geo-diverse facilities.Tether Data: Enabling innovations in AI and peer-to-peer technology, we lower infrastructure costs and enhance global communications with advanced solutions like KEET, our flagship app that redefines secure and private data sharing.Tether Education: Making top-tier digital learning accessible, we empower individuals to excel in the digital and gig economies, fueling global growth and opportunity.Tether Evolution: At the nexus of technology and human potential, we are expanding the boundaries of what is possible, shaping a future where innovation and human capabilities converge in powerful, unprecedented ways.Why Join Us?Our team is a global talent powerhouse, working remotely from every corner of the world. If you're eager to make a significant impact in the fintech space, this is your chance to collaborate with some of the brightest minds, pushing boundaries and setting new standards. We’ve experienced rapid growth while maintaining a lean structure and securing our position in the market.

Become a Key Player in the Digital Finance Revolution with TetherAt Tether, we are not just creating products; we are at the forefront of a global financial transformation. Our state-of-the-art solutions empower a diverse range of businesses—from exchanges and wallets to payment processors and ATMs—to effortlessly integrate reserve-backed tokens across various blockchains. By leveraging blockchain technology, Tether provides the ability to store, send, and receive digital tokens instantaneously, securely, and globally, all while minimizing costs. Transparency is the cornerstone of our operations, ensuring trust in every transaction.Innovate with TetherTether Finance: Our exceptional product suite boasts the world’s most trusted stablecoin, USDT, relied upon by millions globally, along with cutting-edge digital asset tokenization services.But that’s just the tip of the iceberg:Tether Power: Our energy solutions promote sustainable growth by optimizing excess power for Bitcoin mining, utilizing eco-friendly practices in advanced, geographically diverse facilities.Tether Data: Advancing breakthroughs in AI and peer-to-peer technology, we focus on reducing infrastructure costs and improving global communications through innovative solutions like KEET, our flagship application that redefines safe and private data sharing.Tether Education: We are dedicated to democratizing access to premier digital learning, empowering individuals to thrive in the digital and gig economies, which fosters global growth and opportunities.Tether Evolution: At the intersection of technology and human potential, we are redefining the limits of innovation, crafting a future where technology and human abilities converge in extraordinary ways.Why Join Us?Our team comprises a global talent powerhouse, working remotely from all corners of the globe. If you are eager to make a significant impact in the fintech sector, this is your chance to collaborate with some of the brightest minds, pushing boundaries and setting new benchmarks. We have experienced rapid growth while remaining agile, securing our position as a leader in the industry.

Become a Catalyst for Change in Digital Finance with TetherAt Tether, we’re not merely creating products; we’re spearheading a global financial transformation. Our advanced solutions empower businesses—from cryptocurrency exchanges and wallets to payment processors and ATMs—to seamlessly incorporate reserve-backed tokens across diverse blockchains. By leveraging the capabilities of blockchain technology, Tether allows you to store, send, and receive digital tokens instantly, securely, and worldwide, all while minimizing costs. Transparency is fundamental to our mission, ensuring trust in every transaction.Innovate with TetherTether Finance: Our groundbreaking product suite includes the world’s most trusted stablecoin, USDT, relied upon by millions globally, alongside pioneering digital asset tokenization services.But that’s just the beginning:Tether Power: Fostering sustainable growth, our energy solutions optimize excess power for Bitcoin mining employing eco-friendly practices in advanced, geo-diverse facilities.Tether Data: Driving advancements in AI and peer-to-peer technology, we reduce infrastructure costs and enhance global communications with cutting-edge solutions like KEET, our flagship application that redefines secure and private data sharing.Tether Education: Democratizing access to premium digital learning, we empower individuals to excel in the digital and gig economies, fostering global growth and opportunity.Tether Evolution: At the nexus of technology and human potential, we are extending the limits of what’s achievable, shaping a future where innovation and human capabilities converge in powerful, unprecedented ways.Why Join Us?Our team is a global talent powerhouse, collaborating from every corner of the globe. If you’re passionate about making a significant impact in the fintech industry, this is your chance to work alongside some of the brightest minds, pushing boundaries and establishing new benchmarks. We’ve experienced rapid growth, maintained agility, and secured our position as a leader in the industry.

Become a Part of Tether and Transform the Digital Finance LandscapeAt Tether, we are at the forefront of a financial revolution. Our innovative solutions empower various businesses—from cryptocurrency exchanges and wallets to payment processors and ATMs—to effortlessly integrate reserve-backed tokens across diverse blockchains. Utilizing the power of blockchain technology, Tether enables instant, secure, and global storage, sending, and receiving of digital tokens at minimal costs. Our commitment to transparency is foundational, fostering trust in every transaction.Innovate with TetherTether Finance: Our cutting-edge product suite includes the world’s most reliable stablecoin, USDT, trusted by millions globally, in addition to pioneering services for digital asset tokenization.But there’s more:Tether Power: Fostering sustainable growth, our energy solutions maximize excess power for Bitcoin mining through eco-friendly practices in cutting-edge, geographically diverse facilities.Tether Data: Driving advancements in AI and peer-to-peer technology, we significantly reduce infrastructure costs and enhance global communications with innovative solutions like KEET, our flagship application that redefines secure and private data sharing.Tether Education: Facilitating access to high-quality digital learning, we empower individuals to excel in the digital and gig economies, propelling global growth and opportunities.Tether Evolution: At the crossroads of technology and human potential, we are redefining possibilities, creating a future where innovation and human capabilities converge in extraordinary ways.Why Join Us?Our team is a global hub of talent, collaborating remotely from all corners of the globe. If you're driven to make an impact in the fintech industry, this is your chance to work alongside some of the brightest minds, pushing boundaries and setting new benchmarks. We have experienced rapid growth while maintaining a lean structure, securing our position as a leader in the industry.

Join Tether and Transform the Digital Finance LandscapeAt Tether, we are not merely creating products; we are spearheading a global financial revolution. Our state-of-the-art solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to effortlessly integrate reserve-backed tokens across various blockchains. By leveraging blockchain technology, Tether allows you to store, send, and receive digital tokens instantly, securely, and globally, all at a fraction of traditional costs. Transparency is the cornerstone of our operations, fostering trust in every transaction.Innovate with TetherTether Finance: Our innovative product suite includes the world’s most trusted stablecoin, USDT, relied upon by millions globally, coupled with groundbreaking digital asset tokenization services.But that's just the start:Tether Power: Driving sustainable growth, our energy solutions enhance Bitcoin mining by optimizing excess power through eco-friendly practices in cutting-edge, geo-diverse facilities.Tether Data: Propelling advancements in AI and peer-to-peer technology, we minimize infrastructure costs and improve global communication through innovative solutions like KEET, our flagship application that redefines secure and private data sharing.Tether Education: Democratizing access to premier digital learning, we empower individuals to excel in the digital and gig economies, fostering global growth and opportunity.Tether Evolution: At the crossroads of technology and human potential, we are expanding the limits of possibility, crafting a future where innovation merges seamlessly with human capabilities.Why Join Us?Our team comprises a global talent powerhouse, working remotely from every corner of the world. If you are eager to make an impact in the fintech sector, this is your chance to collaborate with some of the brightest minds, pushing boundaries and establishing new standards. We have grown rapidly, remained agile, and secured our position as a leader in the industry.

Join Tether and Shape the Future of Digital FinanceAt Tether, we’re not just developing products; we’re leading a global financial transformation. Our innovative solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to effortlessly integrate reserve-backed tokens across various blockchains. Leveraging blockchain technology, Tether allows you to store, send, and receive digital tokens instantly, securely, and globally, all at a minimal cost. Transparency forms the foundation of our operations, ensuring trust in every transaction.Innovate with TetherTether Finance: Our cutting-edge product suite includes the world’s most trusted stablecoin, USDT, relied upon by millions globally, along with groundbreaking digital asset tokenization services.But that’s just the beginning:Tether Power: We drive sustainable growth by optimizing excess power for Bitcoin mining through eco-friendly practices in state-of-the-art, geographically diverse facilities.Tether Data: We fuel advancements in AI and peer-to-peer technology, minimizing infrastructure costs and enhancing global communication with innovative solutions like KEET, our flagship app that redefines secure and private data sharing.Tether Education: We democratize access to high-quality digital learning, empowering individuals to excel in the digital and gig economies, fostering global growth and opportunity.Tether Evolution: At the crossroads of technology and human potential, we are redefining the limits of what’s achievable, crafting a future where innovation and human capabilities converge in extraordinary ways.Why Join Us?Our team is a diverse talent powerhouse, operating remotely from multiple locations around the globe. If you’re eager to make an impact in the fintech sector, this is your chance to collaborate with some of the brightest minds, pushing boundaries and establishing new benchmarks. We’ve experienced rapid growth, maintained agility, and secured our position as a leader in the industry.

Join Tether and Shape the Future of Digital FinanceAt Tether, we are not merely developing products; we are leading a transformative global financial revolution. Our state-of-the-art solutions empower a diverse range of businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across various blockchains. By leveraging the power of blockchain technology, Tether allows you to store, send, and receive digital tokens instantaneously, securely, and globally, all at a significantly reduced cost. Transparency is fundamental to our operations, instilling trust in every transaction.Innovate with TetherTether Finance: Our groundbreaking product suite features the world’s most trusted stablecoin, USDT, relied upon by hundreds of millions globally, accompanied by innovative digital asset tokenization services.But that’s just the beginning:Tether Power: Committed to sustainable growth, our energy solutions optimize excess power for Bitcoin mining using environmentally-friendly practices in advanced, geo-diverse facilities.Tether Data: Driving advancements in AI and peer-to-peer technology, we reduce infrastructure costs and enhance global communications with innovative solutions like KEET, our flagship application that redefines secure and private data sharing.Tether Education: Democratizing access to high-quality digital learning, we empower individuals to excel in the digital and gig economies, fostering global growth and opportunities.Tether Evolution: At the confluence of technology and human potential, we are expanding the limits of what is conceivable, crafting a future where innovation and human capabilities converge in extraordinary ways.Why Join Us?Our team is a global hub of talent, collaborating remotely from all corners of the globe. If you are passionate about making an impact in the fintech landscape, this is your chance to work alongside some of the brightest minds, pushing boundaries and establishing new benchmarks. We have experienced rapid growth, maintained agility, and secured our position as a leader in the industry.

Become a Pioneer in the Future of Digital Finance with TetherAt Tether, we are revolutionizing the financial landscape, not merely creating products. Our advanced solutions empower a range of businesses—from exchanges and wallets to payment processors and ATMs—to integrate reserve-backed tokens across diverse blockchains seamlessly. By leveraging blockchain technology, Tether facilitates the instant, secure, and global transfer of digital tokens, all while minimizing costs. Transparency is fundamental to our operations, fostering trust in every transaction.Innovate with TetherTether Finance: Our groundbreaking product lineup features the world’s most reliable stablecoin, USDT, utilized by millions globally, along with pioneering services for digital asset tokenization.And that’s just the start:Tether Power: We are committed to sustainable growth through innovative energy solutions that optimize surplus power for Bitcoin mining in environmentally friendly, state-of-the-art facilities across various locations.Tether Data: We drive advancements in AI and peer-to-peer technology, reducing infrastructure costs and enhancing global communication through innovative solutions like KEET, our flagship application that transforms secure and private data sharing.Tether Education: We strive to democratize access to exceptional digital learning, empowering individuals to excel in the digital and gig economies, thereby stimulating global growth and opportunities.Tether Evolution: At the convergence of technology and human potential, we are redefining the limits of possibility, crafting a future where innovation and human capabilities merge in extraordinary ways.Why Join Us?Our team is a global hub of talent, working remotely from all corners of the world. If you are eager to make a significant impact in the fintech arena, this is your chance to collaborate with some of the brightest minds, challenging norms and establishing new benchmarks. We have grown rapidly, maintained agility, and secured our position as a leader in this vibrant sector.

Please note: This is a fully remote position, but candidates must reside within the EMEA region to effectively collaborate with our team, peers, and internal stakeholders. We welcome applicants from across EMEA, not limited to the specified country or city.Join Hostaway, the leading AI-powered vacation rental management platform trusted by over 20,000 property managers globally. Our innovative solution is designed specifically for professional short-term rental operators, streamlining operations for enhanced efficiency and accelerated growth.As the first unicorn in the short-term rental PMS space, we are experiencing significant growth and are seeking to expand our team. Discover more about our journey and recent achievements here.About the RoleWe are in search of a results-driven Senior Fullstack Engineer to develop our Trust Accounting white label solution. This critical role will significantly influence the financial operations of Hostaway's clients, ensuring compliant record-keeping and effective fund management for property owners.You will join a new team tasked with designing and delivering a trustworthy financial subsystem for property managers—one that is accurate, compliant, and reliable. Your contributions will not only focus on delivery but also on fostering a culture of correctness and accountability from the outset. This greenfield opportunity allows you to shape architecture, processes, and delivery from day one.Key Responsibilities:Lead the MVP development and architect the initial V1 product.Implement a flexible, white-label React application.Build a backend to integrate data into the white-label solution and internal data systems.Create a secure, scalable, and auditable trust accounting subsystem adhering to high-quality standards.Refine early processes to enhance delivery speed, system reliability, and overall efficiency.

Become a Key Player in the Future of Digital Finance with TetherAt Tether, we are not just developing products; we are leading a transformative global financial revolution. Our state-of-the-art solutions enable businesses—from exchanges and wallets to payment processors and ATMs—to effortlessly integrate reserve-backed tokens across various blockchains. By leveraging blockchain technology, Tether empowers you to store, send, and receive digital tokens instantly, securely, and globally, all at a minimal cost. Transparency is the cornerstone of our operations, fostering trust in every transaction.Innovate and Thrive with TetherTether Finance: Our groundbreaking product suite includes the world’s most reliable stablecoin, USDT, trusted by millions globally, along with pioneering services in digital asset tokenization.But there’s more:Tether Power: Fostering sustainable growth, our energy solutions optimize excess power for Bitcoin mining using environmentally friendly practices across advanced, geo-diverse facilities.Tether Data: Driving breakthroughs in AI and peer-to-peer technology, we minimize infrastructure costs and enhance global communications with innovative solutions like KEET, our flagship app that redefines secure and private data sharing.Tether Education: Making top-tier digital learning accessible, we empower individuals to succeed in the digital and gig economies, fostering global growth and opportunity.Tether Evolution: At the intersection of technology and human potential, we are redefining the future, crafting a world where innovation and human capabilities converge in unprecedented ways.Why Tether?Our team is a global powerhouse of talent, collaborating remotely from all over the world. If you're passionate about making a significant impact in the fintech landscape, this is your chance to work alongside some of the brightest minds, pushing limits and setting new benchmarks. We have grown rapidly, remained agile, and secured our position as an industry leader.

Join Our Team at TrafileaAt Trafilea, we are pioneering a Consumer Tech Platform focused on transformative brand growth. We are developing an AI Growth Engine that is set to define the next wave of consumer brands.With over $1 billion in cumulative revenue, more than 12 million customers, and a team of over 500 talented professionals across 19 countries, we leverage technology, growth marketing, and operational excellence to scale purpose-driven, digitally native brands.We directly own and operate our own digitally native brands, ensuring a robust presence on platforms like Walmart, Nordstrom, and Amazon, complemented by a significant global direct-to-consumer footprint.Why Choose Trafilea?We are a technology-driven eCommerce group, rapidly growing our own globally recognized DTC brands, while simultaneously fostering rapid growth for ambitious talent. Build and scale your own brands with us. Engage in cutting-edge AI and automation investments that set us apart in the eCommerce space. Rapid testing and growth to help you accelerate your career. Join a vibrant, diverse, and highly skilled global team. Enjoy the flexibility of a 100% remote work environment, competitive USD salary, and generous paid time off, among other benefits.

Location: Fully Remote (EMEA & LATAM)Employment Type: Full-timeAbout the Company:Join a pioneering AI-powered platform that is transforming matchmaking experiences. Supported by prominent venture capitalists, our client harnesses cutting-edge technologies to create meaningful connections between individuals.Role Overview:We are on the lookout for a Senior Full Stack Engineer to become an integral part of our dynamic team. In this role, you will design, develop, and maintain scalable web applications that provide outstanding user experiences. The right candidate will possess a robust background in both frontend and backend development and will be passionate about creating intuitive and efficient systems.Key Responsibilities:Develop and implement innovative full-stack features utilizing TypeScript, Vue.js, and PostgreSQL on the Supabase platform.Collaborate with cross-functional teams to design and enhance user interfaces with Tailwind CSS.Analyze and optimize existing image and text/LLM models to improve matchmaking precision.Assess compatibility between users based on profile images and textual data.Create and maintain comprehensive software design documentation, including flowcharts, state-machine diagrams, and data models.Evaluate and enhance system performance in relation to data storage, bandwidth, and computational expenses.Participate in code reviews to ensure quality and adherence to best practices.Mentor junior developers and support their career growth.

Become a Catalyst for Change in the Digital Finance Sphere with TetherAt Tether, we are not merely developing products; we are spearheading a revolutionary shift in global finance. Our advanced solutions empower enterprises—from exchanges and wallets to payment processors and ATMs—to effortlessly integrate reserve-backed tokens across various blockchains. Utilizing blockchain technology, Tether allows you to store, send, and receive digital tokens instantly, securely, and globally, all at a minimal cost. Transparency is the cornerstone of our operations, fostering trust in every transaction.Innovate with TetherTether Finance: Our cutting-edge product suite includes the world’s most reliable stablecoin, USDT, trusted by hundreds of millions globally, along with pioneering digital asset tokenization services.Tether Power: Fostering sustainable growth, our energy solutions optimize excess power for Bitcoin mining through eco-friendly practices in state-of-the-art, geo-diverse facilities.Tether Data: Enabling breakthroughs in AI and peer-to-peer technology, we minimize infrastructure costs and enhance global communications with innovative solutions like KEET, our flagship app that redefines secure and private data sharing.Tether Education: Democratizing access to premier digital learning, we empower individuals to excel in the digital and gig economies, fostering global growth and opportunity.Tether Evolution: At the crossroads of technology and human potential, we are expanding the limits of what is achievable, shaping a future where innovation and human capabilities converge in powerful, unprecedented ways.Why Join Us?Our team is a global talent powerhouse, working remotely from various parts of the world. If you are enthusiastic about making a significant impact in the fintech domain, this is your chance to collaborate with some of the brightest minds, breaking new ground and establishing new benchmarks. We have experienced rapid growth while maintaining a lean structure, securing our position as a leader in the industry.

At Linear, we are dedicated to revolutionizing the software experience. Our mission is to empower product teams with an innovative issue tracking and project management tool that seamlessly blends elegant design with exceptional performance. Established in 2019, Linear has swiftly become the preferred platform for over 20,000 companies to effectively plan and develop their products.From our inception, Linear has embraced a fully remote work culture. Our dynamic and agile team is dispersed across North America and Europe, united by a shared commitment to excellence, rapid execution, and a passion for software craftsmanship. As creators at heart, we take immense pride in the quality of our work.As part of our close-knit team, you'll be a generalist tackling diverse challenges. We are on the lookout for experienced engineers who can identify problems and deliver solutions. Utilizing TypeScript, we build scalable systems that enable us to make continuous progress on a robust foundation. While we don’t expect expertise in every technology we use, a strong grasp of JavaScript fundamentals and experience with React and TypeScript are essential.Please note: We are an equal opportunity employer and a remote-only company. Currently, we can only hire candidates located in most European time zones for this role.Your ResponsibilitiesDevelop new user-facing features encompassing everything from database models to GraphQL resolvers and UI components.Enhance our data synchronization stack through improved serialization protocols.Integrate real-time collaborative editing capabilities into our content editor.Optimize performance by profiling and refining virtualized list rendering.Incorporate analytics, monitoring, and alert systems to enhance our operational incident response.Open-source significant innovations arising from our product development efforts.Redefine best-in-class software development processes to create a purpose-built product.Our Technology StackOur technology stack reflects the systems we develop and operate. While you don’t need experience with every tool listed, enthusiasm for working closely with product development, performance optimization, and real-world scale is essential.Pluggable agentic workload system utilizing temporal, operating at production scale.Proprietary websocket data sync framework designed for speed and offline support.React, MobX, styled-components, and TypeScript.

Hostaway is a leading SaaS scale-up revolutionizing the vacation rental sector. Our innovative solutions and strategic partnerships with industry giants like Airbnb, VRBO, and Booking.com position us as frontrunners in this competitive landscape. We pride ourselves on our customer-centric values, consistently delivering exceptional results that foster growth, learning, and innovation for our team, clients, and the entire industry.As a profitable, high-growth company and the first PMS unicorn in the short-term rental space , this is an exciting time to join us! Discover more about our recent valuation and journey here.About the RoleWe are seeking a dedicated Staff FullStack Engineer focused on delivering our Trust Accounting white label solution. This role is pivotal in shaping the financial operations for our clients, ensuring compliance and effective fund management for property owners.You will be part of a new team tasked with designing and implementing a trustworthy financial subsystem that property managers can rely on, ensuring accuracy, compliance, and reliability. Your role will not only involve delivery but also in fostering a culture of correctness and accountability from the outset. This greenfield opportunity allows you to influence architecture, processes, and delivery from day one.Responsibilities:Lead the development of a greenfield MVP and architect the initial version of the productImplement a flexible, white-label React applicationDevelop a backend system to relay data to the white-label solution and internal databasesCreate a secure, scalable, and auditable trust accounting subsystem while maintaining high-quality standardsRefine early processes to enhance delivery speed, system reliability, and team autonomyCollaborate with team members to ensure product success and customer satisfaction

Join the Atticus TeamAt Atticus, we recognize that at any given moment, 16 million Americans face crises that urgently require support from our legal system or government. Transforming lives through the right assistance is at the heart of what we do. Unfortunately, many individuals never receive the help they need.We simplify the process for sick or injured individuals in crisis, ensuring they access the life-changing aid they rightfully deserve. Over the past six years, we've emerged as the premier platform linking people with disabilities to government benefits, while also assisting victims of accidents, misconduct, and violence in obtaining compensation from insurance.To date, we've empowered hundreds of thousands of individuals to secure over $10 billion in essential aid and garnered more than 17,000 five-star reviews. Our journey has just begun.Having raised over $100 million from leading venture capital firms such as Fika, Forerunner, GV (Google Ventures), and True Ventures, we are poised to redefine the industry. With our recent Series C funding closed in April 2025, we are well-positioned for the future, expanding from 151 to 210 team members in 2025, with plans for further growth in 2026.Your RoleAtticus operates in a sector dominated by outdated technology, ripe for innovation. While our competitors rely on cumbersome call centers and antiquated systems, we leverage cutting-edge technology as a VC-backed tech company.We are seeking back-end focused Fullstack Software Engineers to join our Representation pod. This dynamic team of engineers, product managers, and designers develops core tools that empower law firms to provide consistent, quality experiences for their clients. You will collaborate closely with our in-house law firm, rapidly iterating to gain insights into real workflows and simplifying complex legal processes into intuitive, scalable software.In this role, you will engage across the stack with a strong emphasis on back-end development, collaborating with all departments at Atticus as we scale our platform to connect those in need with trusted legal support.Key Responsibilities:Design, build, and maintain Atticus’ web applications, emphasizing performance, modularity, extensibility, and reliability.Collaborate with product and design teams to evaluate and refine product specifications and acceptance criteria.Architect scalable solutions that enhance user experience and streamline legal processes.

Alt is revolutionizing the world of alternative assets, beginning with the $5 billion trading card market. We empower collectors to buy, sell, vault, and finance their cards all in one platform, supported by top-tier investors from Stripe, Coinbase, Seven Seven Six, and renowned athletes like Tom Brady and Giannis Antetokounmpo. Our next major initiative involves implementing real-time pricing at scale—the Alt Value that drives every trade, loan, and product offered on our platform. We are in search of a Senior Fullstack Engineer who is eager to construct the financial engine of our platform. Your role will extend beyond developing a checkout flow; you will be empowering the liquidity that sustains our marketplace. You will collaborate with a high-impact team responsible for our custom double-entry ledger, payment provider integrations, and key lending products.If you possess a detail-oriented mindset for backend integrity while maintaining a proactive approach on the frontend, you'll excel in this role.Your Responsibilities:Engineer Financial Integrity: Develop and uphold our custom-built double-entry ledger system to guarantee every cent is accurately tracked across the platform.Own Lending Infrastructure: Design and scale our lending products—from defining credit disbursement logic to automating the lifecycle of loan management.Architect Integrations: Create and implement robust integrations with payment gateways and banking partners, ensuring 99.99% reliability and seamless reconciliation.Own the UX of Money: Develop high-trust user interfaces for payments and lending that simplify complex financial transactions, making them feel transparent and secure.Balance Rigor with Speed: Make informed decisions between rapid feature deployment and the uncompromising accuracy needed for financial systems.Be a Multiplier: Enhance the team through thorough code reviews, technical documentation, and mentorship.This Role is Ideal For You If You…Are Obsessed with Correctness: You recognize that in payments, “mostly working” equates to failure. You deeply contemplate idempotency, race conditions, and data consistency.Think Like a Product Owner: You don’t merely build a “pay button”; you comprehend the entire flow of financial transactions and their implications.

Join Newsela as a Senior Fullstack Quality Engineer and play a pivotal role in enhancing our platform's quality and performance. You'll be part of a dynamic team focused on creating a seamless experience for educators and students across various subjects. Your expertise will help us ensure that our products meet the highest standards of quality and reliability.In this role, you will collaborate closely with developers and product managers to develop comprehensive test strategies, automate testing processes, and identify areas for improvement. If you are passionate about quality assurance and eager to contribute to an innovative educational platform, we would love to hear from you!

Alt is revolutionizing the alternative assets market, beginning with the $5 billion trading card industry. We empower collectors to buy, sell, vault, and finance their cards seamlessly, with backing from industry leaders like Stripe, Coinbase, and pro athletes such as Tom Brady and Giannis Antetokounmpo. Our next goal is to implement real-time pricing at scale—the Alt Value that drives all transactions, loans, and products on our platform.About Alt:&nbsp;At Alt, we are constructing the financial infrastructure needed for modern collectors, streamlining payments, lending, pricing, and liquidity for alternative assets. Our flagship mobile application, which boasts ratings of 4.9 on iOS and 4.6 on Android, serves as a hub for thousands of users to manage, appraise, and trade their collections in real time. As we expand our global reach, we are seeking exceptional builders for our engineering team who are eager to take ownership of significant product features and help shape the future of fintech and marketplaces.The Role:&nbsp;We are in search of a Senior Fullstack Engineer, Frontend with extensive React Native expertise to become a key member of our mobile team. You will be responsible for the end-to-end development of our flagship mobile experience, playing a pivotal role in the architecture, scalability, and performance of our application. This is a high-impact and high-visibility position: your contributions will directly influence the core product experience driving Alt’s growth. We seek someone who is not only focused on completing tasks but is also deeply committed to customer satisfaction, striving to create delightful experiences and deliver genuine value to the collectors and enthusiasts who depend on Alt.This role is perfect for individuals eager to define technical direction, mentor fellow engineers, and eventually transition into leadership or management roles as we grow.You will also contribute to our React-based web application, with a focus split of approximately 70% frontend and 30% backend, following a mobile-first approach.What You’ll Do:</span>