Senior Backend Engineer - Java (Remote in Poland)

Join Our Team at HSP GroupHSP Group stands at the forefront of global expansion services, dedicated to simplifying the complexities of international operations. We offer a comprehensive suite of solutions in legal entity setup, global HR, payroll, compliance, tax, and advisory, empowering our clients to scale efficiently while minimizing risks.As a pioneering startup in the dynamic field of global expansion management, we pride ourselves on our commitment to innovation, delivery excellence, and customer satisfaction. You will be an integral part of our small yet highly skilled team, contributing directly to our success.About Gateway HRGateway HR is our specialized HRIS platform tailored for global expansion management, featuring seamless integration with our flagship Gateway GXM platform. This enables functionalities such as automated payslip generation, smart contract management, and effortless cross-border compliance.Our ecosystem already incorporates AI-driven document recognition and serverless architecture on Azure, alongside a diverse range of integrated tools for HR, entity management, and compliance.Your RoleThis is a fully remote role. We are seeking a Lead Backend Engineer to spearhead the technical vision for Gateway HR and enhance its integration with GXM. You will engage in hands-on platform development while leading external development teams—refining the architecture, innovating new features, and upholding HSP's engineering standards across the codebase.This position is not solely managerial; you will actively code, review pull requests, challenge architectural choices, and launch features while setting high standards for the team.

Join our dynamic team at dev2 as a Lead Software Engineer specializing in backend development. You will play a pivotal role in designing and implementing robust, scalable, and high-performance software solutions. Your expertise will drive innovation and help shape the future of our products while mentoring junior engineers and collaborating with cross-functional teams.

As a Backend Engineer, you will play a crucial role in designing and implementing highly scalable, secure backend services for our innovative SaaS platform. Your primary focus will be on ensuring outstanding performance, reliability, and security throughout our systems.

Join our innovative team at Mirantis as a Senior Backend Software Engineer. In this fully remote role, you will leverage your expertise in backend technologies to design and implement robust software solutions. You will collaborate with cross-functional teams to develop high-quality code and ensure the scalability of our applications.

First Connect Insurance Services operates a digital marketplace designed for independent insurance agents in Poland and beyond. The platform connects agents with over 30 leading US insurance carriers, offering a broad range of products including home, auto, and small business coverage. Technology sits at the core of First Connect’s approach. The company invests in software that brings a modern, consumer-grade experience to insurance professionals. Thousands of agents already rely on this platform, with the user base expanding rapidly. What you will work on This role centers on backend engineering for a remote team based in Poland. Work will support the ongoing development of tools and features that help agents access and manage insurance products efficiently. Who this role is for This position suits backend engineers interested in building technology for the insurance sector. The focus is on creating reliable, user-friendly systems that serve a growing community of agents.

Job Overview Join Our Team We are seeking an experienced Senior Backend Engineer (Go) to join Inflect as a contractor within our Engineering team in Poland. This role offers you the opportunity to take significant technical ownership of essential backend services in a hands-on, execution-driven capacity. If you have a passion for building, scaling, and enhancing production systems that drive business success, we'd love to hear from you! This position is ideal for a senior engineer at either a senior or early staff level, showcasing strong technical ownership and a high degree of autonomy. As part of our tight-knit, senior engineering team, you will enjoy substantial ownership and autonomy, making a direct impact on our product. You will have a concrete influence over backend architecture, technical direction, and tooling decisions while maintaining alignment with product and business objectives. This position does not include people management responsibilities or legacy system ownership; it is solely focused on developing, scaling, and enhancing modern backend services. About Inflect Inflect is at the forefront of building and operating an innovative IT infrastructure marketplace, seamlessly connecting buyers and service providers through a single, product-driven platform. We are not just a software house or agency. We navigate complex marketplace workflows at the intersection of cloud infrastructure, network services, and large-scale computing (CPU/GPU). Our marketplace integrates directly with service providers, allowing buyers to discover, compare, and transact infrastructure services effortlessly. Our engineering culture prioritizes pragmatism, ownership, and rapid feedback, focusing on delivering tangible business value rather than adhering to rigid processes or excessive formalities. Work Environment Standard working hours align with the Polish (CET) time zone, with regular collaboration with engineers and stakeholders based in the United States. We prefer a hybrid work model, with 1–2 days in our Warsaw office each week. Daily communication in English with US-based engineers and partners. Close collaboration with Product, Backend, and Infrastructure-focused teammates. Your Responsibilities Assume technical ownership of critical backend services that power Inflect’s marketplace and service provider integrations. Design, implement, and scale backend systems that support the onboarding and integration of new service provider groups. Collaborate closely with Product and Engineering leadership to translate marketplace and integration requirements into practical, production-ready technical solutions. Engage in ongoing evaluation and improvement of backend systems to enhance performance and reliability.

Apollo.io is a premier go-to-market solution empowering revenue teams globally. With a robust user base exceeding 500,000 companies and millions of users, our platform supports everyone from burgeoning startups to industry giants. Established in 2015, Apollo.io has rapidly ascended to become one of the most dynamic players in the SaaS sector, securing around $250 million in funding and achieving a valuation of $1.6 billion. We provide sales and marketing teams with instant access to verified contact data for over 210 million B2B contacts and 35 million companies worldwide, along with a suite of tools that streamline engagement and conversion on a unified platform. By facilitating accurate contact information retrieval and automating outreach processes, Apollo.io transforms prospects into loyal customers. In 2023, we successfully raised a Series D round and are supported by esteemed investors such as Sequoia Capital and Bain Capital Ventures, with industry leaders like JD Sherman, the former President and COO of Hubspot, on our board.**This is a Permanent role ("Umowa o pracę") and not a B2B contract** YOUR ROLE & MISSION As a Senior Backend Software Engineer at Apollo.io, you will play an essential role within our expanding team. Collaborating with cross-functional teams, you will implement best practices in technology, architecture, and processes. This position offers you the opportunity to thrive in an open and collaborative environment, where mentorship flows both ways, enabling you to grow and accelerate your career. Your passion for learning and teaching will be invaluable as you engage with design, front-end, analytics, and various teams beyond Engineering. You will relish solving complex problems collaboratively and making a tangible impact. At Apollo, you will be driven by a commitment to quality, relentlessly pursuing improvements in quality, automation, and bug resolution while investigating performance enhancements and innovative ideas.

Join Hostinger as a Backend Software Engineer specializing in Node.js in a fully remote position! In this role, you will be responsible for developing high-performance backend solutions that support our web applications and services. Collaborate with a dynamic team of developers and contribute to exciting projects that empower our users around the globe.

Hello We are Bïrch, a transformative platform designed for creative and growth marketing teams, encompassing content creation, collaboration, and ad campaigns all in one powerful toolbox. With over 9 years in the business, we proudly serve more than 800 companies and 5,500 marketers. Our platform has facilitated billions in ad spend, positioning us as one of Meta's fastest-growing partners, officially endorsed by both Meta and Google. Following our rebranding from Revealbot to Bïrch, we have documented our transformative journey here.As we transition from a single successful product to a multi-product platform, we launched Bïrch Hub last year in collaboration with Meta, a user-friendly server-side tracking tool for ads. To support our ongoing growth, we are expanding our backend team. In this position, you will not only maintain existing systems but also play a pivotal role in developing new products and services, shaping architecture collaboratively, and making significant technical decisions by writing high-quality code across our dual-language backend using Ruby on Rails and Go. About UsWe are a remote-first team of friends scattered across the globe, with our headquarters located in Barcelona. Having already established a successful product, we are now embarking on a broader vision. We hire talent worldwide and cherish our offline meetups: in the last two years, we gathered in Barcelona, and previously, in Istanbul. Check out our team’s Instagram to learn more about our diverse cultures and backgrounds.

About ZyteAt Zyte, we embrace the power of data to fuel innovation. Since our inception in 2010, we've grown into a dynamic team of over 250 professionals dispersed across more than 28 countries, dedicated to providing our clients with essential data solutions that empower their business growth. We believe every organization deserves seamless access to data.For over a decade, Zyte has been at the forefront of developing robust, user-friendly tools designed to efficiently collect, format, and deliver web data at scale. Our solutions are trusted by over 3,000 companies and 1 million developers, facilitating smarter decision-making and sustainable growth across various sectors.Zyte is on the lookout for a seasoned Team Lead to oversee our Core & MLOps Squad. This pivotal role focuses on constructing the foundational infrastructure that enables Zyte to operate effectively at scale. As a hands-on technical leader, you will leverage your expertise in MLOps, systems programming, and orchestration to guide a cross-functional team in designing and maintaining the scalable framework that empowers all Zyte teams to execute their services confidently.

Join Turnitin as a Senior Fullstack/Backend Software Engineer, where your expertise in backend development, particularly with Java and serverless architectures, will be pivotal. We are seeking engineers who are enthusiastic about creating scalable distributed systems and delivering robust software solutions for our acclaimed educational platform.As an integral member of our shared services team, you'll spearhead the development and enhancement of the core systems supporting both our existing and upcoming applications.Key Responsibilities:Architect, develop, and optimize scalable backend services utilizing Java and serverless technologies (AWS Lambda).Design and implement RESTful APIs and event-driven architectures.Contribute to frontend component development as required.Enhance performance and cost-effectiveness of existing services.Collaborate with cross-functional teams, including Architects, Product Managers, and engineering leads, to deliver innovative solutions.Mentor junior developers and promote best practices.Establish and manage CI/CD pipelines.Maintain high-quality coding standards through peer reviews, automated testing, and compliance with development best practices.Document shared components comprehensively, providing usage guidelines and examples.

Join our dynamic development team as an experienced Backend Engineer, where you will play a crucial role in building large-scale event-driven systems. We are collaborating with a forward-thinking integrated shipping services company, known for their innovative approach to global logistics. They maintain a smart and efficient worldwide network, providing reliable shipping services that ensure stable operations for customers globally. Your primary responsibilities will include designing and constructing event-driven solutions utilizing Kafka and related technologies, with a strong emphasis on stream processing applications, data pipelines, and monitoring solutions built with the ELK stack.

Waymo is at the forefront of autonomous driving technology, dedicated to becoming the most reliable and trusted driver worldwide. Originating from the Google Self-Driving Car Project in 2009, our focus has been on developing the Waymo Driver—The World’s Most Experienced Driver™—to enhance mobility access and save countless lives lost to traffic accidents. The Waymo Driver is the backbone of our fully autonomous ride-hailing service, and it has been tested rigorously with over 100 million miles of autonomous driving on public roads and billions of miles in simulation across more than 15 U.S. states.Are you passionate about shaping the future of transportation through innovative infrastructure for driverless cars? Join our Commercialization team and contribute to the evolution of our core ride-hailing and fleet management systems. We are seeking an enthusiastic Staff Software Engineer who is eager to tackle Level 4 autonomous driving challenges, collaborate across teams (including mobile applications, cloud backends, and the Waymo Driver), and engage with various functions such as operations, product, legal, partnerships, policy, and privacy to create and enhance essential business infrastructure. We look forward to meeting you!In this hybrid role, you will report directly to an Engineering Director.

Dropbox is looking for a Backend Product Software Engineer to join its remote team in Poland. This position centers on building and maintaining backend systems that power Dropbox products, ensuring reliable performance and effective integration with frontend components. Key responsibilities Design and develop backend systems to support Dropbox's core products. Work closely with engineers, designers, and cross-functional teams to define, build, and launch new product features. Monitor backend system performance and address bottlenecks as they appear. Identify and fix bugs to help maintain a smooth user experience. Impact This role contributes to projects that serve millions of users worldwide. The work directly influences how people experience Dropbox in their daily lives.

Waymo is a pioneering autonomous driving technology company dedicated to becoming the world’s most reliable driver. Originating from the Google Self-Driving Car Project in 2009, Waymo is committed to enhancing mobility access and saving lives lost in traffic accidents. The Waymo Driver—the world's most experienced driver—powers our fully autonomous ride-hailing service and can be adapted to various vehicle platforms and applications. To date, the Waymo Driver has successfully completed over ten million rider-only trips, thanks to its extensive experience of autonomously navigating more than 100 million miles on public roads and billions of miles in simulations across over 15 U.S. states.The RO Performance team plays a crucial role in understanding and enhancing Waymo's self-driving technology. We are responsible for building and maintaining the essential infrastructure needed to process and analyze vast datasets from real-world driving logs and simulations. Our systems generate key performance metrics and power dashboards critical for tracking product performance, pinpointing improvement areas, and facilitating data-driven decision-making. The insights we provide directly impact Waymo's operational deployments, weekly performance evaluations, and ultimately enhance the safety and reliability of our autonomous vehicles.In this hybrid role, you will report to a Staff Software Engineer.

Intuition Machines specializes in developing cutting-edge enterprise security solutions with a strong emphasis on AI and machine learning. Our products, like the renowned hCaptcha security suite, protect systems serving millions globally. We pride ourselves on our agile approach, characterized by low overhead, small teams, and rapid iterations.As a Senior Backend Engineer focusing on Security Automation, you will be pivotal in designing and implementing systems that automate and enhance essential processes within our Security Operations Center (SOC). Your contributions will significantly bolster our capabilities in bot detection, fraud mitigation, phishing detection, and various other security automation initiatives, enabling our team to operate efficiently and effectively on a large scale.

Join Dropbox as a Backend Product Software Engineer, specializing in Payments. In this role, you will collaborate with cross-functional teams to enhance our payment systems, ensuring they are efficient, reliable, and secure. Your expertise in backend development will be critical in shaping the future of our payment infrastructure.

Role Overview Software Mind is hiring a Backend Tech Lead (Java) to join the team in Kraków. This role leads a group of backend developers, shaping architecture and guiding the development of backend systems. The Tech Lead makes key technical decisions and helps ensure code quality and timely project completion.

Join Affirm as a Staff Software Engineer specializing in backend development for our deal reporting systems. In this remote role, you will have the opportunity to design and implement scalable solutions that support our growing business needs. Your expertise will drive improvements in our technology stack, ensuring that we can efficiently process and analyze deal data.As a key member of our engineering team, you will collaborate with cross-functional teams to create high-quality software that meets customer requirements and enhances user experience. You will also mentor junior engineers and contribute to best practices, fostering a culture of innovation and excellence.