25madison is an early-stage venture platform actively building and investing in startups across diverse sectors, including healthcare, supply chain, industrials, and AI-native B2B software. We partner closely with founders, providing not only capital but also strategic guidance and access to a unique network of corporate partners, offering significant product and distribution advantages. This collaborative approach allows us to propel companies into their next phase of growth. Our internal team leverages a robust tech stack including iPhone/mobile compatibility, viewport meta, SSL, Google Tag Manager, Google Analytics, and a content delivery network, ensuring a seamless digital experience. We value a culture of innovation and collaboration, providing our employees with opportunities for professional development and growth within a dynamic startup environment. Founded in 2018, 25madison operates primarily in New York, NY, with a hybrid work model that offers flexibility. We're a team of 11-50 employees and have a proven track record of successful investments and company launches. We are committed to fostering a diverse and inclusive workplace and offer a competitive salary and benefits package to our employees. Our growth trajectory is strong, evidenced by our active investment in various funding rounds for portfolio companies. We encourage those seeking an intellectually stimulating environment with significant senior-level exposure and networking opportunities to consider a career with 25madison. The collaborative and supportive nature of our team makes this a fulfilling place to contribute to building the next generation of successful companies.

MaxRewards is transforming how consumers interact with their finances. We're the #1 app for managing credit cards and maximizing rewards, offering a seamless experience to track rewards, bills, credit scores, and more. Our platform provides personalized recommendations to help users earn the most from their spending. We're a fast-growing FinTech startup, serving over 650,000 members, and we're looking for talented engineers to join our team. We're building our web presence from the ground up using a modern tech stack including React, Node.js, and modern CSS techniques. We leverage AI to enhance personalization and are constantly innovating to improve our user experience. Our engineering culture values autonomy with accountability, pragmatic excellence, and member-centered development. We believe in transparent communication, continuous feedback, and a growth mindset. As an early-stage startup, you'll have a significant impact on our product. We offer a remote-first work environment with opportunities for career growth. We provide a collaborative environment and encourage continuous learning. With seed funding of $3.25M, we're well-positioned for continued expansion and are constantly seeking talented individuals to join us on our mission to transform financial optimization for the modern consumer. The Senior Full-Stack Engineer role is a key part of this expansion.

Fueled is a full-service digital agency specializing in design, development, branding, and strategy for startups. We're known for our agile, all-star team that guides projects from concept to launch, offering the expertise of a top startup with the comprehensive service of a leading agency. We partner with entrepreneurs to build scalable, high-impact digital products, leveraging cutting-edge technologies across iOS, Android, web, and backend development. Fueled's unique value proposition includes our own venture fund, Fueled Ventures, which invests in select clients and shares equity with its employees. This unique structure fosters a collaborative environment where everyone is invested in shared success. Our engineering teams utilize a modern tech stack including Kotlin, Swift, SwiftUI, Flutter, and Dart, employing Agile and Lean methodologies to ensure efficient and high-quality product delivery. We emphasize clean architecture, SOLID principles, and extensive testing, cultivating a culture of continuous learning and improvement. Remote work is a core component of our global structure, providing flexibility and diverse perspectives to our projects. Our commitment to innovation is demonstrated through our use of advanced technologies like Jetpack Compose, Coroutines, and Kotlin Flow (Android) and Swift Concurrency (iOS). Fueled is a vibrant and fast-paced environment where engineers guide architectural decisions and directly contribute to client success. We prioritize collaboration and knowledge sharing, driving impactful results for our partners. Our success is reflected in our extensive portfolio, significant investments, and the impressive growth of our client companies. With a team of 101-250 employees and a history dating back to 2007, Fueled continues to grow and evolve as a leader in the digital product space. We offer a unique combination of agency expertise, venture capital backing, and a vibrant, inclusive work environment.

CookUnity is a company focused on providing exceptional customer support and enhancing the customer experience, as indicated by their job openings in customer support and supply chain management.

Cardano Foundation is a blockchain and cryptocurrency organization based in Zug, Switzerland. Their mission is to standardize, protect, and promote the Cardano Protocol technology.

Collectors is a company focused on leveraging technology to enhance business processes, currently seeking a Senior Workday Analyst to join their team.

Rootstrap is a global digital product development company specializing in responsive web and mobile solutions, custom applications, and strategic product development. We partner with clients from startups to Fortune 100 companies, tackling projects that challenge our talented team and deliver innovative solutions. Our services span web and mobile development, cloud and DevOps, design and user experience, product strategy, AI, and quality assurance. We leverage a modern tech stack that includes iOS, Android, React, Ruby on Rails, and various other technologies to build cutting-edge applications. Our engineering culture emphasizes high-quality code, automated testing, continuous improvement, and collaboration. We value autonomy and creativity, fostering a work environment where team members can contribute ideas and lead initiatives. We encourage cross-functional collaboration, 360-degree feedback, and mentorship programs to support employee growth. With a distributed team across Los Angeles, San Francisco, New York, and Montevideo, we provide flexible remote work options and a strong focus on real human connections. Our commitment to excellence has earned us recognition as a Fastest Growing Company and a Best B2B Service Provider. We're dedicated to helping companies launch, grow, and scale their digital products and services. Our team of over 290 global team members offers various benefits, including access to Rootstrap University, learning bonuses, and flexible work schedules. We are dedicated to inclusivity, and all candidate searches are covered under Uruguayan Law 19691 (the purpose of this law is to promote the inclusion of people with disabilities).