Backend Engineer (HFT / Low-Latency Systems)

Join pod network in revolutionizing blockchain performance with groundbreaking innovations. If you have experience in optimizing systems for nanosecond-level precision and are eager to contribute to a global decentralized exchange ecosystem, this opportunity is designed for you.About the Role:We are in search of talented engineers skilled in high-frequency t…

Join our innovative team at Raya as a Staff Backend Engineer specializing in Recommender Systems. In this fully remote role, you will leverage cutting-edge technology to develop and enhance our recommender systems, ensuring optimal user experience and engagement. Collaborate with cross-functional teams to design scalable solutions that drive business value.

About RemoteRemote is tackling one of the most pressing challenges for modern organizations – navigating global employment compliance effortlessly. We empower businesses of all sizes to hire, compensate, and manage global teams seamlessly. Guided by our core values and a forward-thinking work culture, our team is dedicated to solving ambitious problems asynchronously from around the globe. You can find Remoters working from six continents (Antarctica is the final frontier!), and all of our job openings are fully remote.Innovation is at the heart of our values, and we have integrated Automation and AI capabilities into the requirements for every role.We invite every member of the Remote team to contribute their unique talents, experiences, and cultures to help us create a best-in-class HR platform. If you are dynamic, inquisitive, driven, and ambitious, we encourage you to join us and shape the future of work! Apply today!The RoleYou will be part of a diverse team of engineers specializing in Frontend, Backend, SRE, and QA, organized into cross-functional development teams focused on specific verticals.This position is available for multiple teams, and we will determine the exact team you will join during the interview process based on business requirements and your preferences.Regardless of the specific team, you will be responsible for developing tools, APIs, and integrations for one of our products.Our backend technology stack includes Elixir and Phoenix, supported by a Postgres database. We utilize React and Next.js for our frontend development. GitLab serves as our version control and CI/CD tool, while our applications are hosted on AWS. We rely on continuous integration for our deployments, allowing multiple deployments each day. You can explore our Engineering Rulebook for further insights.What You Can Expect from This RoleEngaging and meaningful challenges that empower individuals and businesses to operate globally.An opportunity to significantly influence our business as we are still early in our journey, meaning your contributions will have a lasting impact as the company grows.A great deal of flexibility in your work environment.

Twindo is pioneering the transformation of the remodeling, architecture, and interior design sectors through innovative AI and computer vision technologies. Our LiDAR-enabled iPhone and iPad scans generate accurate 3D representations of homes in mere minutes, delivering interactive models with precise measurements. Our proprietary technology converts these scans into detailed, editable as-built files in industry-standard formats. Our groundbreaking technology was showcased during Apple's keynote event when the LiDAR sensor was launched, and we are currently modeling millions of square feet every month.As a globally distributed, virtual-first organization, our team spans across various regions, with significant representation in the US and Europe.We are in search of a Senior Backend Engineer to contribute to the development and maintenance of our internal platform and tools, promoting business scalability and engineering efficiency. Reporting to the Platform Team Lead, this position involves a dynamic blend of foundational backend development and DevOps responsibilities, making it perfect for individuals who thrive on diverse projects. Collaboration with our iOS, Computer Vision, Visualization & Tooling, Web, Infrastructure, and Data engineering teams, as well as other departments, will be crucial.

NOTE: This is a FULLY remote role, but candidates must be based within EMEA to effectively collaborate with their team, peers, and internal customers. Please apply only if you are physically located within EMEA.Hostaway is a trusted platform utilized by over 20,000 property managers globally, providing an AI-driven vacation rental management solution tailored for professional short-term rental operators. Our platform consolidates various functionalities to enhance efficiency and promote rapid growth.We are proud to be a profitable, high-growth company and the first unicorn in the short-term rental PMS sector . Join us at this exciting juncture! Discover more about our recent valuation and journey here.Role OverviewWe are seeking a dedicated Staff Backend Engineer with a focus on delivery to develop our new Trust Accounting subsystem. This is a unique opportunity to design and implement a financial system that property managers can rely on—ensuring accuracy, compliance, and reliability.Your contributions will significantly influence the financial operations of Hostaway's customers, helping them maintain compliant records and manage funds effectively.As a founding member of this team, you will steer the architecture and technical direction of this pivotal platform. From day one, you’ll shape architecture, processes, and delivery, fostering a culture that prioritizes correctness and accountability. Your efforts will directly impact Hostaway's ability to provide secure and auditable financial services to our customers.Key ResponsibilitiesDesign a Greenfield System: Take the lead in developing a new financial system from scratch, ensuring it meets the needs of our clients.

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.

At Assured, we're transforming the insurance landscape by modernizing claims processing—a crucial yet often neglected aspect of the industry. Currently fraught with inefficiencies such as phone calls and faxes, this sector costs billions annually. We believe there's a better way.Our mission is to equip large insurers with cutting-edge software solutions that thrive in today's technology-driven environment. From self-service claim-filing systems to sophisticated backend fraud detection, we are the driving force behind claims processing for some of the world's largest insurance providers.The challenges we tackle are varied and intricate, ranging from crafting digital experiences that offer comfort and clarity to claimants in distress, to orchestrating large-scale, machine learning-driven decision-making for billions in claims payments. Life at Assured is dynamic, collaborative, and fulfilling.We are seeking a seasoned Senior Backend Engineer to play a pivotal role in shaping the future of our rapidly expanding B2B SaaS platform. As an essential contributor to our engineering team, you will take ownership of critical systems from architecture and infrastructure to core business logic, ensuring our scalability is both reliable and secure.You will collaborate closely with product, infrastructure, and data teams to introduce new capabilities, enhance performance, and evolve the platform that supports our clients' most vital workflows. This high-impact position offers remarkable ownership, technical challenges, and opportunities for mentorship and leadership.

LI.FI is at the forefront of revolutionizing multi-chain decentralized finance (DeFi) for traditional financial institutions, fintechs, and service providers. We provide a unified API that allows seamless access to all on-chain liquidity across major blockchains, ensuring optimal pricing for both same-chain and cross-chain swaps. Our dedicated team is on a mission to foster a more equitable and decentralized world. We prioritize user experience and strive to make complex technologies accessible to everyone.Overview of the RoleWe are seeking a Senior Backend Engineer who will play a pivotal role in the integration of Hyperliquid functionalities into our API platform. This backend-focused position allows you to influence core integrations at the infrastructure level, without the need for frontend or design tasks. The ideal candidate is passionate about Hyperliquid and its protocols, and is driven to enhance programmatic trading features (such as TWAP and perps) within the expansive DeFi ecosystem through high-performance backend systems.Note: Applicants must reside in the EMEA region. Submissions from outside this area will not be considered.Key ResponsibilitiesExpand LI.FI’s API capabilities by incorporating projects and features from the Hyperliquid ecosystem.Design, develop, and maintain backend services utilizing Node.js and TypeScript.Utilize MongoDB, Redis, and MySQL to facilitate high-throughput, low-latency trading operations.Collaborate closely with the Expansion Project Manager and fellow backend engineers to enhance integrations, optimize routing, and improve user flows, while also assessing new opportunities for feature development.Ensure the delivery of robust, high-quality backend code with a strong emphasis on scalability, performance, and reliability for both same-chain and cross-chain trading.Engage in code reviews, system design discussions, and maintain technical documentation.Qualifications for Success5+ years of experience in the cryptocurrency space, with a focus on building or integrating production-ready DeFi or trading systems.Solid backend engineering expertise, with hands-on proficiency in Node.js and TypeScript.Proficient in database management with MongoDB, Redis, and MySQL in high-performance backend contexts.Familiarity with Hyperliquid protocols and programmatic trading concepts is a plus.

About Us: At RelayProtocol, we are a pioneering Series A startup in the crypto space, dedicated to crafting innovative developer tools that facilitate token trading. Our vision is to empower developers in creating next-generation crypto applications by simplifying token integration and enhancing crypto commerce. We proudly support a myriad of crypto enterprises, including industry leaders like Magic Eden and Coinbase, across diverse sectors such as gaming, social interaction, and payments. Our team comprises deeply technical experts proficient in blockchain indexing, protocol design, and cross-chain interoperability. We are on the lookout for a driven Senior Backend Engineer to join our close-knit yet expanding team.Role Overview: We invite a highly skilled and seasoned Senior Backend Engineer with a robust foundation in crypto and/or financial technologies to elevate our team. In this pivotal role, you will be responsible for the design, development, and maintenance of the backend infrastructure for our cross-chain relayer product, ensuring its reliability and performance.Key Responsibilities:Backend Development: Architect, implement, and sustain highly scalable and resilient backend systems tailored for our cross-chain relayer. Optimize performance and responsiveness for large-scale data processing.Crypto Integrations: Engineer and uphold seamless integrations with various blockchain networks and crypto protocols, enhancing our platform's interoperability.

Why Clipboard Exists:At Clipboard, our mission is to empower individuals to ascend the socioeconomic ladder by transforming their extra time and ambition into meaningful career growth and financial opportunities. Our innovative app-based marketplace connects professionals with workplaces, enabling on-demand shift bookings that benefit both parties.About Clipboard:Clipboard is a rapidly expanding Series C company recognized as a leader in the Long Term Care sector, with plans to diversify into additional areas such as Dental Offices and Schools. As a YC Top Company, our global team of over 700 professionals operates remotely, having achieved profitability since 2022. We facilitate millions of shifts annually across the U.S., serving tens of thousands of professionals. Join us in our mission to further expand our impact. Learn more about our vision on our website here.Your Mission: Innovate, Execute, and Deliver ImpactAs a Backend Software Engineer at Clipboard, you will go beyond writing code—you will design solutions that redefine the connection between healthcare professionals and facilities. Collaborating with product managers, designers, and fellow engineers, you will develop impactful features that address real-world challenges. This is a dynamic and ongoing recruitment effort, as we consistently seek talented software engineers to join our growing team.What You’ll Do: Own the Code, Shape the FutureDeliver High-Quality, Scalable CodeCraft performant backend services utilizing Node/NestJS alongside responsive frontend features using React and TypeScript.Utilize MongoDB, Postgres, and Redis to maintain data integrity and optimize performance at scale.Develop Reusable Components and UtilitiesContribute clean, modular code for our web and mobile applications (Ionic/React, Dart/Flutter).Collaborate with the Developer Experience (DevX) team to enhance tools and libraries that increase productivity and streamline workflows.

Whippy is at the forefront of revolutionizing business communication through AI technology. Our innovative AI Agents are transforming the way companies interact with their customers, providing solutions across customer support, marketing, and sales. By leveraging Whippy’s Voice AI and Chat AI, businesses can automate manual workflows, effectively manage inquiries, nurture leads, screen applicants, and streamline high-value engagements at scale. Our all-in-one platform replaces outdated tools with a powerful solution that enhances productivity and efficiency.About the RoleJoin Whippy as a Backend Engineer and play a crucial role in our product development.You will:Design and implement highly scalable APIs for quick deployment of new products and services.Draft Engineering Requirement Documents to guide projects from concept to execution, ensuring thorough evaluation.Develop test suites to uphold product performance and reliability, integrating analytics to track the success of launched features.Our backend engineers have successfully built:A robust Public API and webhook interface handling millions of messages.An advanced query language built on top of Postgres and OpenSearch.A production-ready URL shortening service with custom domain capabilities.About YouYou possess a strong understanding of web API architecture and a commitment to producing high-quality, well-documented APIs.You are eager to engage in the entire project lifecycle, from initial research and planning through to implementation and performance monitoring.Your excellent written and verbal communication skills enable you to convey ideas, designs, and potential solutions effectively, primarily in an asynchronous environment.What We OfferWe offer a competitive compensation package ranging from $60K to $80K annually, commensurate with experience.You will have the opportunity to take significant responsibility and ownership of a groundbreaking product.Collaborate closely with experienced entrepreneurs who have successfully built companies valued over $100M.Important InformationAs a startup, our team dynamics are unique compared to larger organizations. We are a globally distributed team, and this structure fosters a distinct collaborative culture.

Join Kaizen Gaming as a Senior Backend Engineer and be part of a dynamic Agile team dedicated to crafting innovative solutions for millions of users worldwide. Collaborate with cross-functional teams to drive impactful projects, from user-facing applications to robust backend services, ensuring high performance and reliability. Your expertise will guide the development of scalable systems, turning complex requirements into elegant technological solutions.

Join Offchain Labs in our mission to revolutionize the decentralized application landscape. As a Senior Backend Engineer, you will play a pivotal role in enhancing blockchain scalability and security, helping us tackle real-world challenges while upholding the principles of decentralization, transparency, and security. Our team is composed of innovative thinkers and problem solvers eager to push boundaries and create a more equitable digital future. If you are passionate about blockchain technology and thrive in a dynamic environment, we want to hear from you!

Backend EngineerJoin Turnkey as we transform key management in the Web3 ecosystem with our innovative API focused on security, flexibility, and user experience. Our founders led the growth of Coinbase Custody to over $100M ARR, and now we are on a mission to rebuild crypto infrastructure from the ground up, tackling key security challenges to empower developers.Our vision is akin to how AWS revolutionized computing; we are developing the trustless and decentralized infrastructure that will facilitate the next generation of mass-market crypto applications, addressing the significant challenge of secure and adaptable key management.We seek passionate engineers who believe in the transformative power of crypto. As versatile engineers, we embrace diverse challenges across technologies. While we utilize Go, Typescript, and Rust in production, we value strong foundational skills and experience in creating scalable infrastructure.

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.

About RemoteRemote is at the forefront of addressing one of the most significant challenges faced by modern organizations: managing global employment compliantly and efficiently. We empower businesses of all sizes to hire, compensate, and oversee international teams seamlessly. Driven by our core values and a forward-thinking work culture, our dedicated team tackles ambitious challenges asynchronously from various locations worldwide. Our team members span across six continents (with Antarctica yet to join!), and all our roles are completely remote.With innovation as one of our foundational values, we have integrated automation and AI capabilities into every role’s requirements.We invite every member of the Remote team to contribute their unique talents, experiences, and cultures to help us create a best-in-class HR platform. If you are enthusiastic, inquisitive, driven, and ambitious, join us and help shape the future of work! Apply now!The PositionYou will become a part of a collaborative team of engineers specializing in Frontend, Backend, SRE, and QA. We are structured into cross-functional development teams dedicated to specific areas.This position is available across several teams, and we will identify the exact team you will join during the interview process, considering both business needs and your preferences.Regardless of the team, your focus will be on developing tools, APIs, and integrations for one of our products.Our backend utilizes Elixir and Phoenix, alongside a Postgres database. For our front end, we employ React and Next.js. We use GitLab for version control and CI/CD solutions. Our applications are hosted on AWS, and we rely completely on our CI for deployments, executing multiple deployments daily. For more details, refer to our Engineering Rulebook.What We OfferEngaging and meaningful challenges that enable individuals and businesses to operate globally.The chance to make a substantial impact as we are still in the early stages of our journey; every change you implement today will be magnified by the company's growth.A plethora of freedom and flexibility in your work, promoting a healthy work-life balance.

About RemoteAt Remote, we are addressing one of the most pressing challenges faced by modern organizations: managing global employment in a compliant and effortless manner. Our platform empowers businesses of all sizes to hire, pay, and oversee international teams seamlessly. Driven by our core values and a forward-thinking culture, our dedicated team tackles ambitious challenges from all corners of the globe, with team members across six continents (Antarctica is the last frontier!). As a fully remote company, we embrace flexibility and innovation, integrating Automation and AI capabilities into every position.We invite every member of our team to contribute their unique talents, experiences, and cultures to help us build a world-class HR platform. If you are enthusiastic, inquisitive, driven, and ambitious, we want you to join us in shaping the future of work!The PositionAs a Senior Backend Engineer, you will collaborate with a diverse team of engineers specializing in Frontend, Backend, SRE, and QA. Our teams are organized into cross-functional units dedicated to specific verticals, allowing for impactful contributions across the organization.This role is open across several teams, and we will identify the best fit for you during the interview process based on business needs and your personal preferences.You will be instrumental in developing tools, APIs, and integrations for one of our innovative products.Our tech stack includes Elixir and Phoenix for the backend, with a Postgres database. We utilize React and Next.js on the frontend, while GitLab serves as our version control system, issue tracker, and CI/CD solution. Our applications are hosted on AWS, and we leverage continuous integration for deployments, enabling multiple daily updates.What We OfferEngaging and meaningful challenges that empower individuals and businesses to thrive globally.A chance to make a significant impact within a growing company where your contributions will resonate for years to come.

Location: Remote (Work from Anywhere) Date: The anticipated start date for this role is immediate.⏰ Working Hours: You are expected to have at least 2 hours of overlap with Central Time Zone and be available for several weekly video meetings within that timeframe.Are you an enthusiastic Backend Engineer eager to develop large-scale software that enhances business growth and delights users? At Make, we take pride in delivering award-winning software used by billions, featured over 25 times in the App Store and Google Play. Our clients face real challenges and view us as trusted advisors and leaders in thought. This role extends beyond APIs and pull requests; it focuses on owning backend systems from inception to completion, ensuring reliability as they scale, and collaborating closely with a remote team in a pioneering AI-first engineering environment.If you are passionate about software development and thrive in a culture that promotes creativity, self-management, and a strong sense of community, we would love to connect with you!

About RemotecomAt Remotecom, we are tackling one of the most significant challenges facing modern organizations: the complexities of global employment. Our mission is to empower businesses of all sizes to hire, compensate, and manage international teams with utmost compliance and ease. Our diverse team operates asynchronously across six continents, united by our core values and a forward-thinking culture. We take pride in fostering innovation and integrating automation and AI into every role. Join us in building a world-class HR platform that values your unique talents and cultural insights! If you are an enthusiastic, inquisitive, and driven individual, we invite you to apply and help shape the future of work!The RoleAs a Senior Backend Engineer, you will collaborate with a talented team of engineers across Frontend, Backend, SRE, and QA. We operate in cross-functional teams focused on specific verticals, and we will match you with the right team based on your preferences and business needs during the interview process.Your primary responsibility will involve developing tools, APIs, and integrations for one of our innovative products. Our backend technology stack includes Elixir and Phoenix, with a PostgreSQL database. For the frontend, we utilize React and Next.js. We rely on GitLab for version control and CI/CD, deploying multiple times daily on AWS.What We OfferEngaging and impactful challenges that empower individuals and businesses to operate seamlessly across borders.Significant opportunity for impact as we are in the early stages of our growth journey, meaning your contributions will directly influence our trajectory.