Senior Software Engineer at Fi | Remote

Become a part of Checkly and lead the charge in the Monitoring as Code (MaC) revolution. As a remote-first startup, we are dedicated to empowering developers to take charge of application performance and reliability, from pull requests to post-mortems. Monitor your APIs and applications at a fraction of the cost compared to traditional providers, utilizing o…

Join Checkly as a Senior Backend Engineer and become an integral part of our innovative team. We are looking for an individual who is passionate about crafting scalable and efficient backend systems. This role offers the flexibility of remote work, allowing you to collaborate with talented professionals across different time zones (UTC-3 to UTC+3).As a Senior Backend Engineer, you will design, implement, and maintain robust backend services that power our platforms. You will work closely with other engineers, product managers, and designers to deliver high-quality software solutions.

Join Checkly as a Senior Product Engineer specializing in AI technologies. In this remote position, you will play a pivotal role in developing innovative solutions that leverage artificial intelligence, enhancing our product offerings and user experience. Collaborate with a talented team of engineers and product managers to create cutting-edge features that meet the evolving needs of our clients.

At Canonical, we are on a mission to revolutionize enterprise data solutions by creating a state-of-the-art automation suite that seamlessly integrates multi-cloud and on-premise environments. Our Data Platform Team is at the forefront of this initiative, driving innovation through the development of a diverse range of data storage solutions and technologies that encompass big data, NoSQL, caching layers, and advanced analytics, alongside structured SQL engines.We tackle the intriguing challenges associated with fault-tolerant, mission-critical distributed systems, striving to deliver the world's leading automation solutions for data platforms.Our team is expanding, with openings ranging from junior to senior levels. We will work closely with you to find a fitting role that aligns with your skills and passions. Engineers who excel at Canonical are those who appreciate the dynamics of the open-source community while understanding the demands of large-scale, innovative organizations.Location: This position is open to candidates in the European, Middle Eastern, and African time zones.

At Speechify, our mission is to ensure that reading is never a barrier to learning. We believe that everyone should have access to knowledge, and our innovative solutions are designed to make reading more inclusive and efficient.With over 50 million users, Speechify’s suite of text-to-speech products transforms various reading materials—such as PDFs, books, Google Docs, news articles, and websites—into audio. This enables users to read faster, absorb more information, and enhance retention. Our offerings include an iOS app, Android app, Mac app, Chrome extension, and web app. Google recognized Speechify as the Chrome Extension of the Year, and Apple awarded us the 2025 Design Award for Inclusivity.Currently, our diverse and talented team of nearly 200 professionals operates in a fully remote environment, harnessing the expertise of individuals from renowned companies like Amazon, Microsoft, and Google, as well as leading academic institutions such as Stanford. We also welcome founders and innovators from high-growth startups like Stripe, Vercel, and Bolt.OverviewWe are seeking a passionate Software Engineer to join our AI team, specifically focusing on data infrastructure and acquisition. In this role, you will be pivotal in managing all aspects of data collection to support our model training operations. By integrating infrastructure, engineering, and research, we build high-quality datasets at a petabyte scale efficiently and cost-effectively.

Role Overview xbowcareers is hiring a Software Engineer focused on Platform and Core Infrastructure. This remote position is open to candidates based in Europe. What You Will Do Develop and maintain core systems that support the company’s technology foundation. Work to improve operational efficiency through thoughtful engineering solutions. Collaborate with cross-functional teams to deliver reliable and scalable infrastructure. Contribute ideas and technical expertise to strengthen the overall technology stack. Who We’re Looking For Solid experience in software development. Interest in tackling complex challenges in platform and infrastructure engineering. Comfort working with colleagues across different teams and disciplines. Based in Europe and able to work remotely.

At Speechify, our mission is to eliminate barriers to learning by transforming reading into an engaging auditory experience. With over 50 million users, our cutting-edge text-to-speech solutions convert a variety of texts—including PDFs, books, Google Docs, articles, and websites—into audio format, enabling users to read faster, absorb more, and enhance their retention. Our innovative products, which include an iOS app, Android app, Mac app, Chrome extension, and web application, have been recognized with prestigious awards, including Google's Chrome Extension of the Year and Apple's 2025 Design Award for Inclusivity.As part of our global team of nearly 200 professionals, working entirely remotely, you will collaborate with talented engineers, AI researchers, and industry veterans from companies like Amazon, Microsoft, and Google, as well as from leading academic institutions such as Stanford. We pride ourselves on fostering a dynamic work environment where innovation thrives.Role OverviewWe are on the lookout for a passionate Software Engineer to join our Data team within the AI division at Speechify. In this pivotal role, you will manage the full spectrum of data collection efforts to support our model training operations. Your expertise will enable us to build high-quality datasets on a petabyte scale efficiently and cost-effectively through seamless integration of infrastructure, engineering, and research.

Join Canonical as a Software Engineer focusing on Data Infrastructure, where you'll play a crucial role in building our innovative automation suite for multi-cloud and on-premise data solutions tailored for enterprises. Our collaborative data platform team is dedicated to developing managed solutions across a diverse range of data technologies, including big data, NoSQL, caching, analytics, and structured SQL engines like Amazon RDS. Embrace the challenge of creating fault-tolerant, mission-critical distributed systems, and help us deliver unparalleled automation solutions for managed data platforms. We welcome candidates at all experience levels who are eager to learn and grow in Big Data technologies such as Kafka and Spark. At Canonical, we value open-source community dynamics and understand the needs of large, forward-thinking organizations.

Join Canonical's dynamic data platform team as a Software Engineer specializing in Data Infrastructure with a focus on OpenSearch and Elasticsearch. We are developing an advanced automation suite that delivers comprehensive multi-cloud and on-premise data solutions for enterprises. As part of our collaborative team, you will work on a variety of data technologies, ranging from big data and NoSQL to structured SQL engines, while ensuring optimal performance and reliability in our data operations.

Join Atticus as a Lead Infrastructure EngineerAt any moment, 16 million Americans require urgent assistance from our legal system or government due to crises in their lives. Unfortunately, many do not receive the help they need. At Atticus, we simplify the process for individuals facing health challenges or crises to access the vital support they deserve. Over the past six years, we have established ourselves as the premier platform connecting individuals with disabilities to government benefits. Additionally, we assist victims of accidents, misconduct, and violence in obtaining compensation from insurance. To date, we have empowered hundreds of thousands of individuals to secure over $10 billion in critical assistance, earning more than 17,000 five-star reviews along the way. And we are just getting started.With over $100 million raised from prominent VC firms such as Fika, Forerunner, GV (Google Ventures), and True Ventures, we are on a mission to build a category-defining business dedicated to assisting disadvantaged Americans. Following our Series C funding in April 2025, we have more than $50 million in the bank and a robust, profitable core business. Our team expanded from 151 to 210 in 2025, and we plan to grow further in 2026.Your RoleWe are seeking a Lead Infrastructure Engineer to define and implement exceptional infrastructure standards at Atticus. You will build the platforms and tools that enable our engineering teams to deliver quickly and efficiently.As our second infrastructure engineer, you will collaborate with Jereme to lay the technical groundwork for our future — articulating the vision, constructing the systems, and establishing the practices that will support Atticus for years to come.Own infrastructure as a product, serving our product engineering teams as your clients. This entails:Shaping our infrastructure roadmap — creating a clear vision for our infrastructure’s trajectory and driving initiatives to achieve it.Building security and operational foundations — establishing the groundwork for sustainable growth.Enhancing reliability — minimizing MTTR, defining SLOs, and introducing rigor in outage management.Empowering product teams — developing platforms and tools that enable them to manage their systems comprehensively.This is a senior individual contributor role, directly reporting to Toby, our VP of Engineering. You will play a critical role in shaping our infrastructure vision and strategy.

About Medallion:At Medallion, we are dedicated to allowing healthcare teams to concentrate on their core mission—providing outstanding patient care. Our innovative provider operations platform is designed to eliminate administrative hurdles that hinder healthcare organizations. Through automation of licensing, credentialing, payer enrollment, and compliance monitoring, we empower healthcare operations teams to optimize their workflows, enhance provider satisfaction, and boost revenue generation, all while ensuring excellent patient outcomes.Recognized as one of the fastest-growing healthcare technology firms—ranked No. 3 on Inc. Magazine’s 2024 Fastest-Growing Private Companies in the Pacific Region, No. 5 on LinkedIn's 2024 Top Startups in the US, and awarded as a Glassdoor Best Place to Work in 2024 & 2025—Medallion is transforming provider network management. Our CEO, Derek Lo, has been honored as one of the Top 50 Healthcare Technology CEOs of 2024 by The Healthcare Technology Report. With $130M in funding from premier investors including Sequoia Capital, Google Ventures, and Salesforce Ventures, we are on a mission to revolutionize healthcare at scale.We prioritize candidate safety. Please be aware that all official communication will exclusively come from @medallion.co email addresses.

About UsSparrow is a pioneering high-tech, high-touch solution for managing employee leave. Our mission is to simplify the leave process for companies, enabling them to support their employees through various types of leave, including family and medical leave.The traditional leave management process can be cumbersome and overwhelming. Company leaders face constant challenges in keeping up with evolving regulations, while employees navigating their leave often encounter unnecessary bureaucracy at a critical time in their careers. At Sparrow, we streamline this typically tedious and error-prone process into an efficient 30-minute experience, saving our clients significant time (20-40 hours per leave) and potential costs (up to $30,000 per leave).Headquartered in San Francisco, we are a diverse team with remote employees across the nation. We pride ourselves on being a collaborative, talented, and supportive workforce, dedicated to solving real-world problems.About the RoleAs we expand rapidly, we seek product-focused full-stack software engineers to join our dynamic engineering team. In this role, you will:Collaborate closely with engineering and cross-functional teams (sales, operations) to define, scope, and develop the engineering roadmap.Design and implement new features and products that enhance the experience for both employees and employers.Utilize software to optimize internal processes, enabling more efficient scaling.Invest in engineering health and processes, ensuring sustainable and secure development practices.Mentor and support fellow engineers on the team.About YouWe are looking for candidates who possess:5+ years of experience as a software engineer.The ability to collaborate effectively with both engineers and non-technical teams.Strong written and verbal communication skills.A knack for simplifying complex domains into manageable components.Familiarity with modern software tools and processes (git, CI/CD, testing, deployment, cloud services, etc.).Experience with our technical stack (Django, React, Python, JS, Postgres, Heroku) is a plus, but not mandatory.Above all, we seek individuals who are passionate about leveraging technology to address challenging problems, who enjoy crafting beautiful and functional products, and who resonate with our mission. If this sounds like you, we’d love to hear from you!

AstralAt Astral, our mission is to enhance the productivity of the Python ecosystem by developing innovative developer tools that empower developers to deliver exceptional software more efficiently.We have successfully launched Ruff, a lightning-fast Python linter and formatter, and uv, a robust Python package manager — both of which are among the fastest-growing tools in the developer community.Our ongoing initiatives include pioneering a state-of-the-art type checker and expanding our first hosted services.Our founding team comprises the creators of ripgrep, bat, hyperfine, and maturin; early contributors to Biome and Prefect; along with several CPython core developers — all innovating at the nexus of Rust and Python.The RoleWe are seeking backend and infrastructure engineers to spearhead the development of our inaugural hosted product.This role involves a full-stack, greenfield project to create an entirely new product that seamlessly integrates with Astral's open-source tools. You will collaborate with a small, dynamic team, working closely with our CEO and iterating rapidly alongside top-tier design partners.In this position, you will have a substantial impact on the technical stack and strategic direction of the product, potentially overseeing any (or all) of the following:Architecting and implementing our cloud infrastructure stack (e.g., cloud providers, hosting, deployment) with a strong emphasis on scalability and efficiency.Developing our deployment system, encompassing monitoring, metrics, and observability while managing incident response and triage.Creating and optimizing our cloud storage and content delivery strategies.Fostering a culture of continuous improvement and innovation.

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.

Join Our Mission at EnodeAs the world transitions toward renewable energy, the pace of change must accelerate. At Enode, we are dedicated to unlocking this potential through innovative and connected solutions.Enode is at the forefront of the green energy revolution, offering a platform that connects and optimizes energy devices worldwide via our state-of-the-art APIs. By facilitating everything from electric vehicles to heat pumps, we enable flexible energy demand that prioritizes sustainability.Collaborating with leading energy firms and pioneering green tech innovators, we provide access to over 250 million consumers, empowering them to utilize energy in a more sustainable manner.In a critical moment for decarbonization, Enode is backed by top-tier investors including Y Combinator, Lowercarbon Capital, and Creandum. We are just beginning our journey and are eager to welcome builders and innovators to our passionate, mission-driven team.

About TelnyxAt Telnyx, we're not just envisioning the future of global connectivity—we're actively building it. Our efforts span from architecting a private, global, multi-cloud IP network to delivering hyperlocal edge technology right at your fingertips through intuitive APIs. We're dedicated to shaping a new era of seamless interconnection between people, devices, and applications.Our mission is to transform and modernize outdated systems, automate manual processes, and tackle real-world challenges through innovative connectivity solutions. Our success is a testament to our robust financial stability, which allows us to invest in cutting-edge technologies and nurture an environment of continuous learning and growth for our team.We envision a world where borderless connectivity inspires boundless innovation. By joining us, you can play a vital role in laying the foundations for this interconnected future. We are currently looking for enthusiastic individuals eager to contribute to an industry-defining company while advancing their own skills and careers.The RoleThe Telnyx infrastructure team is in the process of creating a next-generation platform that spans multiple cloud providers and continents. We leverage our private backbone network with cross-connects to major cloud providers including AWS, Azure, GCP, and IBM Cloud, to develop a cloud-agnostic, highly available platform. With our agile team, we currently operate infrastructure in 10 Points of Presence (PoPs) across 3 continents.In This Role You WillDesign, develop, and deploy scalable solutions for managing databases like PostgreSQL, MySQL, Cassandra, Kafka, RabbitMQ, Redis, and more, in both virtualized environments and Kubernetes clusters.Collaborate with engineering teams to identify and address challenges in managing large-scale, high-availability data systems.

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.

Join a Dynamic Team Where Art Meets Science!Known is an innovative marketing agency, expertly designed to tackle the unique challenges and seize the unprecedented opportunities facing today's marketers. Our diverse team of over 250 professionals includes PhD-level data scientists, award-winning creatives, skilled strategists, and expert researchers, all working together to create groundbreaking and culturally resonant work. We believe that genuine collaboration between creativity, science, strategy, and technology leads to extraordinary outcomes.Recognized by Ad Age as one of the top agencies in the industry, we are incredibly proud to have been awarded a spot on The Agency A-List for 2024 & 2025 and to be celebrated as Ad Age’s Data & Insights Agency of the Year for three consecutive years. Our partnerships with leading brands across finance, technology, entertainment, media, CPG, real estate, and beyond are the cornerstone of our success, enabling us to receive numerous accolades including Emmys, Clios, Effies, Cannes Lions Awards, and more.At Known, we are committed to hiring the best talent. Being a Knowner means you are a curious innovator, a knowledge-seeker who is dedicated to continuous improvement for our clients, our team, and the world. Our offices across the U.S. are open, and while many team members enjoy a hybrid working model, we embrace a distributed workforce with numerous Knowners working remotely.Now, Let's Focus on You!As a Senior Software Engineer at Known, you will engage in a variety of projects within small, focused teams, allowing you to significantly shape our products, team practices, and the overall technical culture of the organization! Given the project-driven nature of our work, you’ll consistently have the opportunity to learn new skills and master industry-leading technologies. On the backend, you will design and implement distributed systems, API endpoints, event-driven microservices, asynchronous and parallel programming, as well as data pipelines and reporting systems.