Senior Backend Engineer for PHP/Rust Migration

Hello! Thank you for your interest in our Senior Backend Engineer position.At South Geeks, we are dedicated to matching exceptional engineering talent from Latin America with pioneering companies creating transformative products across the globe. We prioritize long-term collaborations and foster strong technical environments that support professional growth …

Canonical, a trailblazer in open-source software and operating systems for the global enterprise and tech landscape, is seeking a passionate Graduate Software Engineer to join our innovative team. Our flagship platform, Ubuntu, powers transformative initiatives in public cloud, data science, AI, engineering innovation, and IoT, serving leading public cloud and silicon providers worldwide.As a fully remote company with over 1,200 dedicated professionals across 75+ countries, we prioritize collaborative global engagement, meeting in unique locations 2 to 4 times a year to align on strategic goals.In this role, you will be instrumental in developing, testing, and enhancing Ubuntu’s presence on public cloud platforms. Your contributions will directly impact the quality and stability of Ubuntu, which is pivotal for our global user base. Collaborating with our Ubuntu teams and major cloud partners, you will ensure the continuous improvement of our cloud images while actively engaging with our users to meet their needs.This position demands a strong foundation in Python software engineering, with a keen focus on interoperability across diverse releases and environments. Proficiency in Python is essential, and contributions to open-source projects will be considered a significant advantage. You will also manage Ubuntu images, so familiarity with apt configuration, deb packaging, and system administration will enhance your effectiveness in this role.We are looking for individuals who are enthusiastic about the Ubuntu project and are committed to developing tools that empower millions globally. A focus on quality, attention to edge cases, user experience, comprehensive documentation, and community engagement is paramount. You will work with a diverse user spectrum, from mission-critical environments to enthusiastic hobbyists, guiding best engineering practices to cater to all.

Who Are We?Admios has been at the forefront of nearshore software development in Latin America since 2005, collaborating with leading technology companies in Silicon Valley. Our dynamic team of 50 engineers spans 12 countries across Central and South America. We pride ourselves on attracting the most skilled developers in the region and tackling complex engineering challenges that push the boundaries of technology.Discover the unique advantages of working with us:Continuous Learning: We are committed to cultivating a well-rounded skillset encompassing technical, soft, and management skills, establishing a robust career foundation.Top Benefits: Experience an unparalleled benefits package compared to other service firms in Latin America, including generous personal time off, family leave, health benefits, and extensive personal and work reimbursements.Client Collaboration: Enjoy the opportunity to work directly with clients, fostering lasting relationships. After two years on an account, our clients can hire our engineers directly if both parties agree.

Canonical, a forefront provider of open source software and operating systems, is on the lookout for a dedicated Software Engineer specializing in Distributed Systems Testing. In this role, you will be instrumental in ensuring the quality and resilience of applications built on Canonical’s renowned Ubuntu and Juju platforms. Your expertise will drive the success of multi-cloud deployable applications, enhancing our reputation in key areas such as public cloud, data science, AI, and IoT. We prioritize quality engineering, seeking individuals who can employ data-driven strategies to enhance testing, automation, reporting, and analytics. Join our globally distributed team as we test and deploy cutting-edge cloud solutions in diverse environments, from bare metal in customer data centers to major public clouds including AWS, GCE, and Azure. You'll have the opportunity to develop CI pipelines, test innovative products on new clouds, and contribute to the advancement of our AI/ML pipelines for automated test result analysis.

At Assured, we are revolutionizing the insurance industry by streamlining claims processing, a critical yet often neglected element of this sector. Currently bogged down by manual processes, including phone calls and faxes, this area incurs substantial costs annually. We believe there's a better way.We empower large insurance providers with innovative software solutions tailored for a technology-centric environment. Our offerings range from user-friendly self-service claim-filing tools to sophisticated backend fraud detection systems, propelling claims processing for some of the world's foremost insurers.The challenges we encounter are vast and varied, from designing digital experiences that provide comfort and clarity during stressful times to orchestrating extensive machine learning-driven decision-making for billions in claims payments. Life at Assured is dynamic, collaborative, and immensely fulfilling.We are currently on the lookout for a highly skilled Senior Staff QA Engineer to join our innovative team. In this essential role, you will be at the forefront of developing and executing advanced testing strategies to guarantee the delivery of high-quality software products. Collaborating closely with product owners, developers, and various stakeholders, you will help define and implement industry-leading quality assurance processes.

Join Canonical, a leading provider of open-source software, as a Software Engineer focused on developing innovative Python-based container images. In this role, you will create and maintain a diverse array of container images, collaborating with various teams to ensure the highest quality and an exceptional Ubuntu user experience. You will play a pivotal role in automating Continuous Integration and Continuous Delivery (CI/CD) processes, leveraging your expertise in container-based DevOps. By contributing to cutting-edge products like OCI images, you will help shape the future of container technology. This position offers the opportunity to work remotely across the Americas, APAC, and EMEA while engaging with a global community of tech professionals.

Canonical, a trailblazer in open-source software solutions, is looking for a Senior Software Engineer to join our Launchpad team. In this pivotal role, you will drive the evolution of our platform, which is essential for managing open-source projects. Your deep knowledge of Linux, web services, and scalable systems will allow you to refine a mature, Python-based architecture that supports major initiatives like Ubuntu. Collaborating with a global team, you will work on enhancing developer workflows and maintaining critical services, ensuring that Launchpad remains a dynamic environment for open-source contributions. This is an exciting opportunity to make a significant impact in the world of software development.

Join us at Linear, where we are redefining the landscape of software development. Our mission is to reinvigorate the software experience by empowering product teams with an innovative issue tracking and project management tool that marries stunning UI with unmatched performance. Since our inception in 2019, Linear has swiftly become the go-to platform for over 20,000 companies striving to elevate their product development processes.Operating fully remotely from day one, our dynamic team is spread across North America and Europe. We share a unified vision driven by a commitment to excellence, swift execution, and a genuine passion for software craftsmanship. As makers at heart, we place great importance on the quality of our work.In our tight-knit team, versatility is key; we embrace challenges and foster a culture of continuous learning. We are in search of seasoned professionals who can tackle complex problems in both product and code. Our technology stack prominently features TypeScript, enabling us to build scalable systems that support ongoing progress on a robust foundation. While expertise in every tool we utilize isn’t mandatory, a solid grounding in JavaScript and experience with React and TypeScript are essential.Please note: We are an equal opportunity employer and operate as a remote-only company. Currently, we can only consider candidates within most European time zones for this role.Your ResponsibilitiesDesign and develop new user-facing features utilizing visually appealing and scalable UI components.Collaborate closely with founders and design teams to swiftly implement innovative feature concepts.Construct intricate React components, from drag & drop functionalities to virtualized large data rendering.Integrate real-time collaborative editing capabilities into our content editor.Enhance application performance through careful profiling.Redefine and implement best-in-class software development processes to create a purpose-built product.Our Technology StackOur technology stack mirrors the systems we build and operate. While we don’t expect you to be proficient in every technology listed, you should be enthusiastic about collaborating on product development, performance optimization, and scaling real-world applications.Pluggable agentic workload system leveraging Temporal, designed for production-scale operations.Custom websocket data synchronization framework optimized for speed and offline capabilities.Frontend technologies include React, MobX, and styled-components.Robust, widely adopted GraphQL API and SDK.Backend technologies include Node.js, PostgreSQL, Temporal, and Redis.

Join Tether and Help Shape the Future of Digital FinanceAt Tether, we are at the forefront of a global financial revolution, creating innovative solutions that empower businesses—from exchanges and wallets to payment processors and ATMs—to effortlessly integrate reserve-backed tokens across various blockchains. Leveraging blockchain technology allows Tether to facilitate instant, secure, and global transactions of digital tokens at a fraction of the cost, with transparency being the cornerstone of our operations.Innovate with TetherTether Finance: Our state-of-the-art product suite features the world’s most trusted stablecoin, USDT, utilized by millions globally, along with groundbreaking digital asset tokenization services.But this is just the beginning:Tether Power: Championing sustainable growth, our energy solutions maximize excess power for Bitcoin mining through eco-friendly practices in advanced, geographically diverse facilities.Tether Data: Driving advancements in AI and peer-to-peer technology, we minimize infrastructure costs and enhance global communication with pioneering solutions like KEET, our flagship app that transforms secure and private data sharing.Tether Education: Opening doors to high-quality digital learning, we equip individuals to thrive in the digital and gig economies, fostering global growth and opportunity.Tether Evolution: At the convergence of technology and human capability, we are redefining possibilities, crafting a future where innovation and human potential blend in extraordinary ways.Why Join Us?Our team is a global talent powerhouse, operating remotely from all corners of the world. If you're eager to leave your mark in the fintech arena, this is your chance to collaborate with some of the brightest minds, challenging conventions and setting new benchmarks. Our rapid growth has kept us agile, securing robust partnerships and opportunities for innovation.

Become a Part of Tether and Revolutionize Digital FinanceAt Tether, we are not merely developing products; we are at the forefront of a global financial transformation. Our state-of-the-art solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to effortlessly integrate reserve-backed tokens across various blockchains. By leveraging blockchain technology, Tether facilitates the instant, secure, and global storage, sending, and receiving of digital tokens, all while minimizing costs. Transparency is fundamental to our operations, fostering trust in every transaction.Innovate with TetherTether Finance: Our groundbreaking product suite includes the world’s most reliable stablecoin, USDT, trusted by hundreds of millions globally, along with innovative digital asset tokenization services.And that’s just the start:Tether Power: Promoting sustainable growth, our energy solutions optimize surplus power for Bitcoin mining using environmentally friendly practices in advanced, geo-diverse facilities.Tether Data: Driving advancements in AI and peer-to-peer technology, we lower infrastructure costs and improve global communications with innovations like KEET, our flagship application that redefines secure and private data sharing.Tether Education: Making high-quality digital learning accessible to everyone, we empower individuals to excel in the digital and gig economies, fostering global growth and opportunity.Tether Evolution: At the convergence of technology and human potential, we are redefining what is achievable, creating a future where innovation and human capabilities unite in extraordinary 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 an impact in the fintech industry, this is your chance to collaborate with some of the brightest minds, pushing limits and setting new benchmarks. We’ve grown rapidly, maintained a lean structure, and secured our position as a leader in the field.

Become a Part of Tether and Help Revolutionize Digital FinanceAt Tether, we are not merely creating products; we are leading a global financial transformation. Our innovative solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to effortlessly integrate reserve-backed tokens across various blockchains. By leveraging blockchain technology, Tether enables users to store, send, and receive digital tokens instantly, securely, and worldwide, all at minimal costs. Transparency is the cornerstone of our operations, fostering trust in every transaction.Innovate with Us at TetherTether Finance: Our groundbreaking product suite includes the world’s most reliable stablecoin, USDT, trusted by hundreds of millions globally, alongside pioneering digital asset tokenization services.But this is just the beginning:Tether Power: Our sustainable growth strategies optimize surplus energy for Bitcoin mining, employing eco-conscious practices in advanced, geographically diverse facilities.Tether Data: We are driving advancements in AI and peer-to-peer technology, significantly lowering infrastructure costs and enhancing global communication through cutting-edge solutions like KEET, our flagship app that transforms secure and private data sharing.Tether Education: We democratize access to premium digital learning, enabling individuals to excel in the digital and gig economies, thereby fostering global growth and opportunities.Tether Evolution: At the confluence of technology and human potential, we push the limits of what is achievable, crafting a future where innovation and human capabilities coalesce in extraordinary ways.Why Work with Us?Our team is a global talent powerhouse, operating remotely from every corner of the globe. If you are enthusiastic about making an impact in the fintech landscape, this is your chance to collaborate with some of the sharpest minds, breaking boundaries and establishing new benchmarks. We have experienced rapid growth, remained streamlined, and secured our position as a leader in this dynamic field.

About the RoleWe are seeking an experienced and motivated Senior Backend Engineer (generalist) with a robust background in Java and preferably Kotlin to join our dynamic team. In this remote position, you will play a pivotal role in developing our product from the ground up. Your responsibilities will include integrating with enterprise systems, scraping and analyzing large datasets, and creating systems that empower users to utilize LLMs for generating scalable sales insights—extracting critical information from millions of public documents.You could be the ideal candidate if you: Are an accomplished developer with experience in Enterprise B2B SaaS or Big Data processing within the JVM ecosystem, with Kotlin as a plus.Have a history of impactful engineering experience in a startup or smaller organization.Are enthusiastic about engaging in all aspects of backend development and have experience collaborating within small teams in fast-paced startup environments.Possess familiarity with the following technologies: Kotlin (Backend)Google Cloud Platform (GCP)Google Cloud SQL for PostgreSQLFirebasePythonHave experience with any of the following (not mandatory):Natural Language GenerationEnterprise API integrationsPrompt EngineeringLarge Scale Web Scraping & ParsingAre proficient in both written and spoken English.Our Work CultureCustomer-Centric Approach - We pride ourselves on putting customers at the heart of everything we do.Rapid Execution - We operate with a sense of urgency and decisiveness, always striving to gain momentum.Joy in the Journey - We intentionally create an environment that is both energizing and enjoyable, fostering camaraderie and resilience within our teams.Hands-On Engagement - We believe that the best ideas emerge from close engagement with our work, embracing challenges and complexities.

About UsAt Socket, we empower developers and security teams to accelerate their workflows by eliminating tedious security tasks. Our platform is trusted by thousands of organizations, including industry leaders like Anthropic, xAI, Figma, and Vercel. Experience the love for Socket directly from our users by checking their tweets!Founded by Feross Aboukhadijeh, a veteran open-source maintainer with software downloaded over a billion times monthly, Socket has successfully raised $65M in funding from top-tier investors and industry experts.About the RoleWe are seeking a highly skilled Forward Deployed Engineer with a strong focus on Python to act as a vital technical liaison between Socket and our enterprise clients. In this role, you will leverage your software development skills along with exceptional customer engagement abilities to ensure successful implementations, create custom solutions, and establish the groundwork for our professional services. You will be instrumental in maximizing value for our largest clients and in shaping the future of our technical offerings.This position is fully remote, with a requirement for 20-30% travel for on-site customer engagements.What You'll DoAct as the primary technical consultant and trusted resource for 5-8 enterprise accounts.Develop custom code, scripts, and integrations to address complex customer implementation issues.Lead technical onboarding sessions, training workshops, and provide hands-on implementation guidance.Create tailored SAST rules, CVE rules, and security policies that fit customer environments.Coordinate smooth technical rollouts and integrations in complex enterprise settings.Foster strong relationships with customer engineering teams and security stakeholders.Produce standardized technical documentation, best practices guides, and reusable implementation playbooks.

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.

Join Enode and Transform the Energy LandscapeThe global energy consumption landscape is evolving rapidly, yet the transition to renewable sources is lagging. At Enode, we believe that the key to unlocking this potential lies in smarter, more interconnected solutions.Our platform is at the forefront of the green energy revolution, facilitating the development of cutting-edge applications that connect and optimize energy devices through our advanced APIs. By integrating everything from electric vehicles to heat pumps, we empower users to harness renewable energy more effectively.Partnering with leading energy companies and innovative green tech firms, we provide instant access to over 250 million consumers, enabling them to adopt sustainable energy practices.In light of the urgent need for decarbonization, our mission is more critical than ever. With the support of prominent investors such as Y Combinator, Lowercarbon Capital, and Creandum, we are just getting started, and we invite builders and innovators to join our passionate, mission-driven team.Your RoleWe are seeking a dedicated Mid-Level Backend Engineer to enhance the reliability, observability, and efficiency of our Electrical Vehicle & Chargers (EVC) platform. In this role, you will focus on fortifying Enode's connectivity layer, which integrates various EV chargers, vehicles, and OEM platforms into a seamless product experience for our customers.This position is distinct from infrastructure or DevOps roles; you will be part of the EVC Platform team, responsible for maintaining and expanding the product-level platform that connects users to energy devices through robust and high-quality integrations.Your contributions will include developing new integrations, addressing bugs, automating processes, refining monitoring and alerting systems, and enhancing the overall resilience of our API as we scale to incorporate additional OEMs and partners.Our technology stack primarily comprises a TypeScript codebase alongside React, Node.js, AWS, Docker, and PostgreSQL, structured using CDK/CloudFormation.

Join Tether and Revolutionize the Digital Finance LandscapeAt Tether, we are not merely developing products; we are leading a global financial transformation. Our state-of-the-art solutions empower enterprises—from exchanges and wallets to payment processors and ATMs—to effortlessly integrate reserve-backed tokens across various blockchains. By leveraging blockchain technology, Tether allows you to store, send, and receive digital tokens instantly, securely, and globally, all at minimal costs. Transparency is the cornerstone of our operations, fostering trust in every transaction.Innovate with TetherTether Finance: Our pioneering product suite includes the world’s most trusted stablecoin, USDT, relied upon by millions globally, alongside groundbreaking digital asset tokenization services.But this is just the beginning:Tether Power: Accelerating sustainable growth, our energy solutions optimize surplus power for Bitcoin mining using environmentally conscious practices in advanced, geographically diverse facilities.Tether Data: Driving advancements in AI and peer-to-peer technology, we lower infrastructure costs and enhance global communications with innovative solutions like KEET, our flagship application that redefines secure and private data sharing.Tether Education: Making premier digital education accessible to all, we empower individuals to excel in the digital and gig economies, fostering global growth and opportunity.Tether Evolution: At the crossroads of technology and human potential, we are expanding the limits of possibility, crafting a future where innovation and human capabilities converge in extraordinary ways.Why Join Us?Our team is a global talent powerhouse, collaborating remotely from every corner of the globe. If you are driven to leave your mark in the fintech arena, this is your chance to work with some of the brightest minds, pushing boundaries and establishing new benchmarks. We have experienced rapid growth, maintained agility, and secured our position as a leader in the industry.

About Dash0At Dash0, we're on a mission to revolutionize observability. As pioneers in OpenTelemetry, we are crafting an intuitive and AI-focused platform designed to eliminate vendor lock-in and reduce unnecessary operational burdens. Join us in creating a product that developers will truly appreciate, featuring clear pricing and built-in cost management.The OpportunityWe're in search of a Senior Product Engineer to strengthen our vital backend teams, including Intelligent Edge, Revenue Engineering, or Platform. In this role, you will develop a wide range of solutions, from high-scale data pipelines and edge processing to sophisticated usage-based billing systems that drive our business.This role demands both product insight and engineering expertise. You will find yourself at the nexus of large-scale infrastructure and mission-critical systems, managing billions of signals, querying vast data sets, and ensuring precision in metering systems where financial accuracy is paramount. We seek someone who values user experience and the economic impact of every technical decision.What You'll DoDesign and implement scalable and resilient backend services in Go, encompassing core ingestion pipelines, edge processing, and usage-based billing systems.Tackle large-scale data engineering challenges, including efficient querying of terabytes of data in ClickHouse and maintaining data integrity in complex metering systems.Partner with product teams to assess the economic viability of technical designs, ensuring maximum customer value — you are a Product Engineer, not merely a coder.Architect and enhance backend systems to effectively manage billions of observability signals with minimal latency and high reliability.Establish coding and testing quality standards, mentoring team members and ensuring maintainability as we scale.Promote best practices for Go services and OpenTelemetry distributions throughout the engineering organization.

Canonical stands at the forefront of open-source software development, delivering innovative operating systems and solutions tailored for global enterprises and technology sectors. Our flagship platform, Ubuntu, is integral to transformative initiatives across public cloud infrastructure, data science, artificial intelligence, engineering advancements, and the Internet of Things (IoT). We proudly serve renowned public cloud providers, silicon manufacturers, and industry pioneers across diverse sectors. As a leader in global distributed collaboration, we boast a dynamic team of over 1,200 professionals across more than 80 countries, with minimal office-based roles. Our teams convene for strategic alignment and collaboration two to four times a year in captivating locations worldwide.Founded, profitable, and on a growth trajectory, we are seeking a Python Software Engineer dedicated to engineering excellence, continuous improvement, and skill development. This role presents an exciting opportunity to engage with popular software systems, cutting-edge integration technologies, and pioneering open-source projects.The Commercial Systems division consists of six engineering teams that collaborate closely with other technical and business units at Canonical. The services engineered and maintained by this division are crucial to our operations, with Python playing a vital role in our initiatives. We invite talented Python Software Engineers to join our dedicated Integrations team.The Integrations team focuses on automating SaaS user management and onboarding new data sources into our data mesh. This team is tasked with designing, developing, and operating Python-based solutions to streamline SaaS seat management and monitor expenditures across our application portfolio. Additionally, the team integrates various internal and external data sources into the data mesh through open-source ETL solutions, empowering data-driven decision-making across the organization.Location: This position is fully remote, available to candidates in the EMEA region.

Canonical, a trailblazer in open source software and operating systems for global enterprises, is seeking a talented Software Engineer to join our dynamic Kubernetes product team. Our flagship platform, Ubuntu, is integral to cutting-edge enterprise initiatives including public cloud, data science, AI, engineering innovation, and IoT. With a customer base that includes top public cloud and silicon providers, as well as industry leaders across various sectors, we pride ourselves on fostering a culture of global collaboration. Our team comprises over 1000 professionals across 70 countries, primarily working remotely, with occasional in-person meetings held in exciting locations worldwide to strategize and execute effectively.As we continue to grow, we invite a passionate Software Engineer to contribute to our Kubernetes offerings. You will play a pivotal role in developing operators and add-ons, ensuring seamless lifecycle management of critical components while delivering a zero-ops experience for project integration into Kubernetes. This position provides a unique opportunity to work closely with cutting-edge open-source technologies, enhancing user functionality and collaborating with industry peers to deliver optimal solutions to our customers.If you are enthusiastic about open source software, Linux, Golang, Python, and Kubernetes, we would love to hear from you!Location: This is a remote role available for candidates in EMEA and the Americas.

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.