Senior Backend Engineer (Python) at SplitMetrics | Poland

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.

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.

Hello! We are Bee Talents, an IT recruitment agency dedicated to assisting clients globally in establishing their technical teams since 2015. Currently, we invite you to join the recruitment process for Reef Technologies.About Reef Technologies:We are a fully remote team of senior Python backend engineers with over 5 years of experience.Our focus is on building complex distributed systems, ensuring low latency, fault tolerance, high scalability, and self-healing capabilities. We also develop APIs, databases, and libraries, diving into custom algorithm design as needed.Over the long term, we collaborate with startups globally, working on projects that range from one-off tasks to multi-year partnerships. Highlights of our work include a financial data warehouse for a London fintech, a graph search system for Norwegian auditors, and a scalable WAF for a client in Chicago.Beyond our technical endeavors, we actively shape Reef Technologies to be a desirable workplace. We co-create company policies using Sociocracy 3.0, a framework that ensures every voice is valued and rules are collaboratively established.Our primary objective at Reef Technologies is to accomplish tasks efficiently and effectively. We offer competitive rates and significant flexibility, expecting everyone to take accountability for their work and deliver promptly. We do not tolerate unresponsiveness.To ensure the best fit, we prioritize matching team members with suitable projects. You'll have substantial input in shaping your career path within the organization.Typically, we work between 30–40 hours a week, with ample flexibility in our schedules. Our team is globally distributed, with many of us working from Poland.

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.

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 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.

About WPP MediaWPP is the creative transformation company, harnessing creativity to shape a brighter future for our people, planet, clients, and communities. For further details, visit wpp.com.WPP Media operates as WPP’s global media collective, where we unify the best platforms, talent, and partnerships to unlock boundless growth opportunities in an ever-evolving media landscape. Visit wppmedia.com for more information.At WPP Media, we value the strength of our culture and our people, which empowers us to provide exceptional experiences for our clients and each other. In this role, you will play a vital part in upholding WPP and WPP Media’s core values:Be Extraordinary by Leading Collectively to Inspire Transformational Creativity.Create an Open environment by Balancing People and Client Experiences while Cultivating Trust.Lead Optimistically by Championing Growth and Development to Mobilize the Enterprise.Role Summary and ImpactAs a key member of the Global Operations Centre (GOC), you will collaborate with diverse teams across the United States, Europe, and Asia to deliver impactful solutions in a vibrant, multicultural setting. We are on the lookout for a skilled Backend Engineer to join our Data & Technology Solutions team. In this role, you will be essential in designing, developing, and maintaining scalable backend systems that drive our innovative marketing technologies, including the WPP Open AI platform. If you are passionate about crafting high-performance APIs, engaging with large datasets, and shaping the future of AdTech, we would love to connect with you.

Join MyDr, a pioneering team of technology enthusiasts dedicated to revolutionizing the healthcare sector. We develop sophisticated software solutions for Electronic Medical Documentation and holistic clinic management, bringing the Polish healthcare system into the modern age for both practitioners and patients.Our flagship solution, MyDr EDM, is trusted by over 10,000 clinics, including those partnering with the National Health Fund (NFZ). It delivers a comprehensive suite of functionalities that enhances daily operations in medical facilities—from advanced scheduling and essential appointment tools (e-prescriptions, e-referrals, and e-sick leaves) to cutting-edge telemedicine solutions and seamless integration with the government P1 Platform.Additionally, we proudly offer dr100, a specialized program tailored for dental practices, featuring unique tools such as interactive dental diagrams and dedicated modules for periodontal, prosthetic, and orthodontic needs.Since our founding in 2017, MyDr has established itself as a leader in cloud-based EDM solutions within Poland's medical software market, consistently innovating to meet the evolving needs of healthcare providers.

Join our dynamic team at Lingarogroup as a Backend Developer! In this role, you will be responsible for designing, implementing, and maintaining server-side applications and databases, ensuring high performance and responsiveness to requests from the front-end. You will work closely with front-end developers to integrate user-facing elements with server-side logic.We are looking for someone who possesses a strong understanding of backend technologies, is highly motivated, and thrives in a collaborative environment.

Join Attio: Pioneering the Future of CRM in the AI EraAt Attio, we are on a transformative mission to revolutionize Customer Relationship Management (CRM) for the age of artificial intelligence. Our goal is to create the first AI-native CRM solution tailored for the most ambitious go-to-market teams. Recently, we secured a $52M Series B funding led by GV (Google Ventures), alongside support from Redpoint, Balderton, Point Nine, and 01A. Our passionate team is dedicated to overcoming complex technical challenges, delighting users, and setting new industry benchmarks.About the RoleOur Engineering team is focused on tackling the most challenging problems so our users can thrive. We build real-time infrastructure, AI-native architecture, and a seamless frontend experience, all powered by a team that operates swiftly, thinks critically, and maintains exceptionally high standards for quality.We are seeking a Senior Product Engineer who is passionate about pushing boundaries, meticulous about details, and eager to help reshape how millions of individuals work.

Role overview fomf seeks a FullStack Engineer to help build and maintain software applications. This remote position is open to candidates based anywhere in Poland. The role covers both front-end and back-end development, with frequent collaboration alongside colleagues from various specialties. What you will do Develop and maintain applications using full stack technologies Work closely with cross-functional teams to deliver reliable software Share ideas to improve user experience and overall product quality Location Remote within Poland.

Role Overview oscilar is hiring a Senior Backend Engineer with a focus on Java. This remote position is open to candidates based in Poland. The role centers on building and maintaining backend systems that support oscilar’s products and services. What You Will Do Work closely with teams across disciplines to design, implement, and support backend applications Develop scalable, reliable backend systems using Java Contribute to the ongoing improvement of code quality and system performance Location This is a remote role available to candidates located in Poland.

About Zowie:At Zowie, we are transforming the way businesses engage with their customers. Our vision is to create a future where AI Agents manage 100% of customer interactions, offering instant, tailored, and outstanding experiences.We recognize that AI Agents herald the next significant technological advancement, and Zowie is at the forefront of this evolution. Trusted by leading consumer brands such as Costco, DocMorris, Monos, Decathlon, and InPost, our AI Agents are already handling millions of conversations monthly in customer care.About the Role:As we see great enterprises harnessing our GenAI-powered platform to unlock substantial wins, we are committed to investing in the next wave of innovation—focusing on increased impact, seamless integrations, and expedited time-to-value. To support this initiative, we are expanding our engineering team and seeking dedicated Scala Engineers who are eager to work at the cutting edge of GenAI and contribute to the development of groundbreaking products.In this position, you will lay the groundwork that supports our AI Agents at scale, designing systems with a focus on reliability, performance, and adaptability. Interested in the technology you'll be working with? Explore our tutorials for a glimpse of our platform or see it in action here.An essential aspect of our culture is being an AI-native engineering organization. Here, you are not just permitted but expected to utilize modern AI tools in your daily tasks. The software engineering landscape is rapidly evolving with new AI tools, and we are at the forefront of this change. You will actively advance this frontier by leveraging AI for design exploration, code scaffolding, test generation, and decision documentation, all while adhering to strong engineering principles—such as clear contracts, readable code, robust test suites, observability, and maintainable architectures. This is not about haphazard coding; it's disciplined engineering, accelerated.If this vision excites you and you are already integrating AI into your coding practices, we would love to speak with you.

Location: Poland About Us: RTB House stands at the forefront of marketing technology, delivering cutting-edge solutions to leading brands and agencies around the globe. Our proprietary ad-buying engine is the world's first to utilize Deep Learning algorithms exclusively, empowering advertisers to achieve remarkable results at every stage of their marketing funnel. We are on the lookout for a Backend Python Developer to become an integral part of our internal team at RTB House. In this role, you will engage in the development of applications and tools that directly enhance our real-time bidding operations. Collaborating with seasoned engineers and product teams, this position offers a fantastic opportunity for developers eager to expand their skill set, tackle real-world challenges, and create robust software that makes a tangible impact.

Join our dynamic team as a Frontend Engineer specializing in React, where you will play a pivotal role in developing and enhancing a scalable, high-performance SaaS frontend. Your focus will be on creating rich, engaging UI/UX experiences, including mobile web applications.

Role overview First Connect Insurance is seeking a Full Stack Engineer to join its remote team in Poland. This position centers on building and refining applications that power the company’s insurance platforms. Work from home and collaborate with colleagues on projects that influence the insurance sector. What you will do Develop and maintain front-end and back-end features for web applications Work with team members to improve platform functionality Contribute to projects aimed at enhancing the user experience across products Requirements Experience in both front-end and back-end development Ability to produce high-quality code and collaborate effectively in a remote environment Located in Poland

Join the forefront of engineering excellence as a Site Leader for one of Weekday's esteemed clients.With a minimum of 10 years experience required, this role is tailored for a dynamic leader with a robust foundation in Site Reliability Engineering (SRE) and Infrastructure. You will orchestrate and amplify our engineering operations while ensuring the reliability and scalability of vital systems.As the Site Leader, your key responsibilities will include:Overseeing and mentoring SRE and Infrastructure teams, driving operational excellence and cultivating a culture centered around reliability and accountability.Defining and executing a comprehensive infrastructure and reliability strategy that aligns with our broader business objectives.Managing the design, deployment, and maintenance of scalable, secure systems.Establishing and monitoring SLAs, SLOs, and SLIs to guarantee optimal service performance.Leading incident management processes, including root cause analyses and continuous improvement initiatives.Collaborating with product and engineering teams to incorporate reliability and scalability throughout the development lifecycle.Promoting automation, observability, and proactive monitoring techniques to minimize downtime and enhance system health.Managing infrastructure costs, capacity planning, and resource optimization.Mentoring and developing engineering managers and senior engineers, fostering a strong leadership pipeline.Ensuring compliance with best practices in cloud infrastructure, DevOps, and security protocols.

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.

Join our innovative team at Arista Networks as an FPGA Design Engineer. In this pivotal role, you will be responsible for designing and developing cutting-edge FPGA solutions that drive our next-generation networking products. You will collaborate with a talented team of engineers to implement advanced features and functionalities, ensuring high performance and reliability.This position offers the flexibility of a remote work environment, allowing you to work from anywhere in Poland while contributing to projects that make a significant impact in the industry.