Senior Fullstack Quality Engineer at Newsela | Remote

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 reliabili…

GuidePoint Security is at the forefront of cybersecurity, delivering trusted expertise, innovative solutions, and comprehensive services that empower organizations to make informed decisions while effectively minimizing risks. By employing a three-tiered, holistic methodology to assess security postures and ecosystems, GuidePoint enables top-tier entities, including Fortune 500 companies and U.S. government agencies, to detect threats, optimize their resources, and implement tailored solutions that effectively mitigate risk.Position Overview:We are on the lookout for a seasoned and highly proficient Senior SOAR Developer/Engineer to become a pivotal member of our cybersecurity team. In this capacity, you will spearhead the design, implementation, and enhancement of Security Orchestration Automation & Response (SOAR) systems utilizing a range of contemporary toolsets. This role is remote; however, candidates residing on the U.S. East Coast will be preferred to facilitate team collaboration and customer support during business hours.

Join us on an extraordinary journey. This role is not for the faint-hearted; it demands resilience, creativity, and a passion for exploration. With small rewards but immense recognition, you'll be part of a groundbreaking team pushing the boundaries of what’s possible in the onchain world. At Nansen, we're pioneering a transformative approach to onchain investing, creating the premier product that facilitates A New Way To Trade—agentic, fully integrated, and onchain. If you're seeking an adventure in innovation, your quest ends here. Our mission: To unveil hidden signals and cultivate winners in the investment landscape. Your Role at Nansen You will develop the intelligence layer that fuels our mission, working with over 500 million labeled blockchain addresses, training unique models, and deploying AI/ML systems that empower real investors to make informed decisions and enhance their portfolios. Design and implement AI/ML models leveraging the world's richest onchain dataset, ensuring they are fast, scalable, and production-ready. Collaborate closely with engineers and product teams to deliver models that directly impact users. Stay ahead in both AI/ML and blockchain technologies—this is a fast-paced environment, and we seek someone who can keep up. Elevate the team: mentor junior engineers and help define excellence in our practices. Own your projects from inception to deployment, managing everything from data pipelines to final features. Qualifications We Seek Proven track record of deploying AI/ML at a production scale—your experience speaks for itself. Deep proficiency with Python frameworks, Generative AI, and agent technologies. Extensive knowledge of LLMs, agent architectures, prompt engineering, and context engineering across various platforms, including OpenAI and Anthropic. Ability to navigate the full data stack: feature engineering, pipelines, and model serving. Data engineering experience is a significant advantage. Your approach to AI transcends mere tool usage; it’s foundational to your thought process. Bonus: Familiarity with onchain technology, a passion for cryptocurrency, and insights into future trends. What We Offer Competitive salary and meaningful equity—gain real ownership of your contributions. Fully remote work with two dedicated no-meeting days each week to foster deep work. Annual company retreat and team off-sites in vibrant locations such as Singapore, Bangkok, London, and Oslo.

Join our dynamic team at Rewardful, a proud brand of SaaS Group. As a Senior Software Engineer, you'll be integral in enhancing our affiliate management platform, making it easier for SaaS businesses to manage their affiliate programs since 2018.In this remote role, you will work closely with a distributed team to optimize our infrastructure and scale capabilities, ensuring our platform remains robust and reliable for our expanding user base.Your RoleAs a key member of our Engineering Team, you will:Design and implement innovative features that empower our merchants and affiliates.Make strategic decisions regarding architecture and technology.Develop scalable infrastructure solutions to facilitate growth.Manage containerized environments using Docker and Kubernetes.Support customer service by creating tools that streamline operations.Write automated tests and conduct code reviews to maintain high standards.Your Immediate Impact (First 3-6 Months)Tackle database scaling issues to accommodate our rapidly growing user base and increased traffic.Contribute to the planning and execution of our infrastructure migration from Heroku to a customizable cloud solution.Implement architectural changes to broaden our product offerings.

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>

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.

Attention: This is a fully remote position, but applicants must reside in the EMEA region to effectively collaborate with our team, peers, and internal stakeholders. Please apply only if you are physically located within EMEA.With over 20,000 property managers relying on us, Hostaway is the leading AI-driven vacation rental management platform tailored for professional short-term rental operators. We streamline operations to enhance efficiency and accelerate growth.As a profitable and rapidly expanding unicorn in the short-term rental Property Management System sector, we're at a thrilling juncture. Discover more about our recent valuation and journey here.Role Overview:Hostaway is revolutionizing the vacation rental landscape as a market-leading SaaS scale-up. Through innovative solutions and partnerships with industry giants like Airbnb, VRBO, and Booking, we are successfully outpacing our competitors. Our commitment to customer-centric values ensures we consistently deliver results that foster growth, learning, and innovation for our team, customers, and the industry.This position is pivotal to our continued expansion, particularly following our recent funding round of $365 million. Explore more about this achievement here.

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.

Join Our Team at Xebia!At Xebia, we pride ourselves on being a premier destination for technology experts to thrive and evolve. With nearly two decades of experience, we have been delivering cutting-edge digital solutions to clients across various industries worldwide, including renowned brands such as UPS, McLaren, Aviva, and Deloitte.Our commitment to cloud-based solutions is evident through our partnerships with the leading cloud service providers: Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP). We are honored to be recognized as the first AWS Premier Consulting Partner in Poland.Previously known as PGS Software, we transitioned to become a part of the Xebia Group in 2021, embracing a family of companies that share a vision to impact the technology landscape positively.Xebia embodies innovation, a skilled workforce, and technological excellence, granting us opportunities to engage in globally significant and inventive projects.Our mission is succinctly captured in one word: Authority. We aspire to be acknowledged as the leading authority in our area of expertise.What distinguishes us? It’s the nuances – our positive approach, dedication to continuous learning, and belief in the potential of every team member. We prioritize the personal development of our staff, and we invite you to visit us to experience it firsthand!Now, we're eager to learn more about you!Your Role:Developing Snap packages.Utilizing LXD.Managing dependencies in a large monorepo ecosystem.Working with Go modules, including understanding project structures, go.mod, and various dependency types (required, indirect, extended).Executing advanced semantic versioning (semver) tasks: version bumping, tag management, module updates, and synchronizing versions across multiple repositories.Facilitating the migration and updating of dependencies across different repositories in alignment with the release process.

Note: This position is entirely remote; however, candidates must reside within the EMEA region to effectively collaborate with our team, peers, and internal stakeholders. Please apply only if you are physically located within EMEA.Hostaway is a trusted platform among over 20,000 property managers globally, specializing in AI-driven vacation rental management tailored for professional short-term rental operators. Our innovative solutions streamline operations, enhance efficiency, and accelerate growth.As a profitable, high-growth company, we proudly stand as the first unicorn in the short-term rental PMS sector. Join us during this thrilling phase of our journey! Learn more about our recent achievements and valuation here.About the RoleAs a Senior Frontend Engineer at Hostaway, you will take the lead in designing and enhancing the user interfaces that our customers depend on daily. You will be a vital part of our frontend architecture, collaborating closely with Product, Design, and Backend teams to create intuitive, high-performance user experiences at scale.Your responsibilities will extend beyond feature deployment; you will actively monitor live software, troubleshoot issues, and drive continuous improvements in performance, stability, and user experience. Additionally, you will contribute to elevating team standards through code reviews, mentorship, and providing technical leadership.ResponsibilitiesDesign, build, and maintain scalable, high-quality UI components, features, and reusable libraries aligned with our design system.Develop intuitive, performant, accessible, and responsive user experiences across various browsers and devices.Build and maintain frontend integrations with backend services to ensure seamless functionality.

At GuidePoint Security, we deliver expert cybersecurity solutions and services that empower organizations to make informed decisions and effectively reduce risk. Our holistic, three-tiered assessment framework helps prestigious institutions, including Fortune 500 companies and U.S. government entities, identify threats, optimize resources, and implement tailored solutions that enhance their security posture.About the RoleWe are in search of a proficient and experienced Senior SIEM Developer/Engineer to become an integral part of our cybersecurity team. In this pivotal role, you will spearhead the design, implementation, and continuous enhancement of Security Information and Event Management (SIEM) systems and observability pipelines utilizing a range of cutting-edge tools. While this position is remote, preference will be given to candidates situated on the U.S. East Coast to facilitate collaboration and support.Key Responsibilities:Architect, implement, and maintain SIEM solutions focused on modern platforms such as:SplunkMicrosoft SentinelElasticGoogle SecOps / ChronicleCrowdStrike NG-SIEM / LogScalePalo Alto XSIAMSentinelOne SIEMDesign and manage log ingestion pipelines using tools like Cribl Stream, Edge, or Search (or similar).Enhance data routing, enrichment, and filtering to boost SIEM efficiency and cost-effectiveness.Collaborate with cybersecurity, DevOps, and cloud infrastructure teams to integrate various log sources and telemetry data.Create custom parsers, dashboards, correlation rules, and alerting mechanisms for security analytics and threat detection.Ensure the reliability, scalability, and performance of logging infrastructures.Provide expert guidance on log normalization, storage strategies, and data retention policies.Lead incident response investigations and support root cause analysis utilizing SIEM insights.Mentor junior engineers and contribute to strategic security monitoring initiatives.

OppFi is a premier tech-driven digital finance platform collaborating with banks to deliver financial products and services to everyday Americans. We focus on transparency and responsibility, fostering financial inclusion and providing an excellent customer experience. Our mission is to support consumers who are often overlooked by traditional financial options, helping them achieve better financial health.Our team is composed of compassionate, innovative, and inclusive individuals who thrive on diverse talents, expertise, perspectives, and backgrounds. We tackle every challenge with a vision for improvement, striving to enhance our processes by 1% daily. Our business principles cultivate a collaborative culture where the best ideas prevail! We seek individuals who aspire to make a significant impact in the financial ecosystem by enhancing credit access, broadening financial inclusion, promoting financial well-being, and delivering outstanding customer service.Fun fact: OppFi is recognized as one of the top consumer-rated financial platforms online, boasting a 4.5/5.0-star rating on Trustpilot. We were also honored as a 2025 Crain’s Fast 50™ company and featured on Built In's 2025 Best Places to Work in Chicago.The Data Engineering team is dedicated to the design, development, and support of all data-related functions at OppFi. This includes deploying PostgreSQL databases that underpin our applications, managing our Snowflake Data Warehouse, and overseeing multiple Airflow and Hevo ETLs. In this role, you will engage in...PostgreSQL Database AdministrationHands-on administration and architecture of our PostgreSQL Databases in AWS RDS.Provisioning new database instances and updating RDS instance configurations using CI/CD tools (e.g., Terraform).Implementing corporate data security and privacy standards in the PostgreSQL environment.Planning, conducting drills, and executing High Availability and Disaster Recovery strategies.Performance tuning and analysis.Monitoring and alerting for data-related issues using Datadog and Cloudwatch.User support, documentation, and audit assistance.Evaluating and testing tools.Assisting with capacity planning and budget considerations.Participating in on-call rotations for production support across all Database and ETL Systems.Regularly testing the RDS (Postgres) disaster recovery plan and documenting quarterly outcomes.Architecting and supporting complex workload deployments across numerous microservices.Automating routine database administration tasks, such as user and environment provisioning.

At Privacy, we are committed to developing an innovative suite of user-friendly tools that empower our customers to better manage and protect their financial privacy. Our team comprises skilled engineers, creative designers, and dedicated operators with a wealth of knowledge in financial technology, regulatory compliance, and product development. We celebrate our diverse backgrounds, which include content creators, athletes, artists, and passionate professionals, to foster an inclusive workplace that drives exceptional product outcomes. Join us in this mission!Privacy.com is seeking a Full Stack Software Engineer to contribute to the development of new features and products for our consumer financial services. You will collaborate closely with cross-functional teams, including product managers, designers, and operations, to deliver secure and intuitive payment solutions that enhance our users' financial autonomy. This role is an excellent opportunity for a motivated junior engineer looking to expand their skills and make impactful contributions to an ambitious product roadmap.

Location: Remote - Anywhere (Open to applicants located anywhere around the globe.) Fueled is a premier digital strategy, design, and engineering agency. Now unified with 10up – the brand of our WordPress practice – we boast a talented team of over 300 professionals who have crafted numerous digital products and experiences for renowned brands such as Google, Apple, The New York Times, ESPN, Victoria’s Secret, MGM Resorts, Albertsons, and CLEAR.As a Contract Senior Web Engineer, you will play a crucial role in architecting the foundational systems that support dynamic, large-scale digital experiences. Your expertise in WordPress will be pivotal in constructing robust, scalable solutions using modern PHP and advanced Gutenberg architecture. Your contributions will seamlessly integrate critical business requirements with sophisticated technical solutions, ensuring that the platforms you develop are high-performing, maintainable, and capable of evolving alongside our clients' ambitions. By setting a high standard for back-end craftsmanship and providing mentorship through your code, you will leave a significant impact on our products, our team, and the millions of users who engage with your work.Our team, intentionally remote and distributed across six continents, thrives in a culture that champions flexibility, creativity, and cutting-edge technology. Together, we’re shaping the future of digital experiences.

Join Canonical as a Senior Growth EngineerAt Canonical, we have been empowering developers with cutting-edge open-source solutions since 2004, facilitating innovations across public cloud, machine learning, robotics, and blockchain. As part of our marketing team, you'll be at the forefront of technology adoption, driving our marketing strategies and enhancing our martech stack. We seek a seasoned Senior Growth Engineer to take charge of our marketing technology infrastructure, data architecture, and growth initiatives.In this pivotal role, you will design and scale systems that power automation, lifecycle marketing, and data-driven strategies. We want a candidate who is not just skilled in technology and data, but is also enthusiastic about leveraging these tools for impactful marketing. If you enjoy solving complex challenges, utilizing state-of-the-art tools, and architecting automated systems for a global enterprise, we want to hear from you!This position is integrated within the Marketing team and reports directly to the Growth Engineering Manager.Location: This role is offered as a remote position within the EMEA region.

Join DualEntry as a Senior Frontend EngineerFounded in 2024, DualEntry is rapidly emerging as a leader in the AI startup landscape. We are pioneering the future of finance with our innovative AI-native ERP system, designed to revolutionize the fintech sector, which boasts a staggering market size of over $220 billion.At DualEntry, we empower accounting teams to increase efficiency and reduce manual data entry through advanced AI technology. Our clients range from burgeoning businesses generating $5 million in annual recurring revenue to NYSE-listed corporations, all trusting us to streamline their financial operations. We are committed to transforming the traditional finance team structure and leaving behind the burdens of outdated ERPs.As a part of our dynamic team, you will experience an environment driven by urgency and ownership, where fast-paced decision-making is the norm.Why Your Role is CriticalIn just 18 months, we have secured over $100 million in funding from renowned investors including Lightspeed Venture Partners, Khosla Ventures, and Google Ventures. Our rapid growth is a testament to the exceptional talent we have assembled from top-tier tech and accounting firms such as Meta, Microsoft, and Deloitte.As a Senior Frontend Engineer, you will take full ownership of developing and maintaining high-performance web applications, ensuring a seamless user experience. This hands-on role demands a commitment to excellence and the ability to make swift decisions to propel our projects forward.Location: Fully remote, with occasional collaboration expected during EST business hours.

About RemoteAt Remote, we are addressing one of the most significant challenges faced by modern organizations: navigating global employment compliantly and effortlessly. Our platform empowers businesses of all sizes to hire, compensate, and manage international teams seamlessly. Guided by our core values and a forward-thinking work culture, our devoted team tackles ambitious challenges asynchronously across the globe. We proudly have team members working from all corners of the world, with positions that are fully remote.Innovation is at the heart of what we do, and we integrate Automation and AI capabilities into every role.We invite every member of the Remote team to share their unique talents, experiences, and cultural backgrounds to help us build a world-class HR platform. If you are driven, inquisitive, and ambitious, join us in shaping the future of work! Apply now!The PositionAs a Senior Backend Engineer, you will collaborate with a team of talented engineers across Frontend, Backend, SRE, and QA. We operate in cross-functional development teams dedicated to specific verticals.This role is open to several teams, and we will determine your specific team during the interview process based on business needs and your interests.No matter the team, you will be instrumental in developing tools, APIs, and integrations for our products.Our backend stack is powered by Elixir and Phoenix, with a Postgres database. For our frontend, we utilize React and Next.js. GitLab serves as our version control, issue tracking, and CI/CD tool, and we deploy our applications on AWS, relying on CI for multiple daily deployments.What This Job Offers YouEngaging and impactful challenges that enhance the ability for individuals and businesses to thrive globally.A chance to make a substantial impact within the organization—being in the early stages of our journey means that your contributions will resonate significantly as our company expands.

Join Binance, the world's leading blockchain ecosystem, as a Senior Data Engineer. You will play a crucial role in enhancing our data infrastructure, ensuring efficient processing and analysis of vast amounts of data. Collaborate with cross-functional teams to design robust data pipelines, optimize data flow, and contribute to innovative solutions that drive our digital asset offerings. Your expertise will be essential in maintaining our competitive edge in the cryptocurrency market.

About RemoteAt Remote, we tackle the significant challenges of modern organizations by simplifying global employment compliance. We empower businesses of all sizes to hire, compensate, and manage international teams seamlessly. Our culture is built on core values and focused on the future, driving our team to work diligently on ambitious challenges from all corners of the globe. With team members spanning across six continents, we are fully remote and are committed to maintaining a diverse and inclusive work environment.Innovation is at the heart of what we do, and we integrate Automation and AI into every role's requirements.We encourage all Remote team members to contribute their unique talents, experiences, and cultural backgrounds to help us create a leading HR platform. If you are an energetic, curious, and ambitious individual, we invite you to apply and help define the future of work!The RoleYou will be part of a dynamic team of engineers specializing in Frontend, Backend, Site Reliability Engineering (SRE), and Quality Assurance (QA). Our teams are organized into cross-functional groups dedicated to specific verticals.This position is available across multiple teams, and we will match you with the best fit during the interview based on business requirements and your interests.Regardless of the team, you will contribute to developing tools, APIs, and integrations for one of our innovative products.Our backend infrastructure utilizes Elixir and Phoenix, with a PostgreSQL database. Our frontend is developed using React and Next.js. We employ GitLab for version control, issue tracking, and CI/CD solutions, and our applications are hosted on AWS. We rely on Continuous Integration for our deployments and deploy multiple times each day.What We OfferEngaging and impactful challenges that empower individuals and businesses to thrive globally.The chance to make a significant impact within the company as we are still in the early stages of our journey; every contribution you make is magnified by the company's growth.

Canonical, a trailblazer in open source software and operating systems, invites applications for the position of Senior, Staff, or Principal Engineer. This role is fully remote, allowing you to work from anywhere in the world. At Canonical, our flagship platform, Ubuntu, empowers enterprises with cutting-edge solutions in cloud computing, data science, artificial intelligence, engineering innovation, and IoT. As a part of our innovative team, you will collaborate with top-tier public cloud and silicon providers and industry leaders across various sectors. We pride ourselves on being a pioneer in global distributed collaboration, with over 1,200 colleagues in more than 75 countries, and a commitment to minimal office-based roles. We convene in person two to four times a year in unique locations to align on strategy and execution. This is a dynamic opportunity for a Senior+ Engineer who is not only a proficient software architect but also a natural leader capable of inspiring teams to deliver exceptional products. In this role, you will contribute significantly to Canonical's portfolio through high-quality code, technical leadership, and innovative design.