Qualifyze GmbH develops software solutions that support supply chain compliance in the Life Sciences sector. The engineering group consists of 50 professionals specializing in software and data, working together to create value throughout each project phase. This remote Senior Frontend Engineer position focuses on building scalable user interfaces and strengthening team collaboration. The role involves more than hands-on coding: architectural leadership, clear communication, and applying clean design principles are central. Working closely with colleagues from different backgrounds, this engineer will help shape both the user experience and the technical roadmap. Main responsibilities Frontend architecture: Lead architectural decisions, define component structure, and set technical direction for frontend projects. Maintain high quality standards aligned with industry practices. Design system development: Maintain and improve the design system, including reusable components, design tokens, theming, and documentation. Adapt the system as requirements evolve. Problem solving: Tackle complex frontend challenges in large-scale projects or independently manage smaller tasks from concept through delivery. Cross-functional collaboration: Work with product managers, UX designers, backend engineers, SREs, and QA specialists to deliver cohesive, user-centered solutions.

About ClickHouseRanked among the most innovative firms on the 2025 Forbes Cloud 100 list, ClickHouse is a fast-evolving leader in the private cloud sector. With a rapidly expanding customer base exceeding 3,000 and an annual recurring revenue (ARR) growth exceeding 250% year-over-year, ClickHouse excels in real-time analytics, data warehousing, observability, and AI-driven workloads.The company’s impressive trajectory has been reinforced by a recent $400M Series D funding round. In the last three months, notable clients such as Capital One, Lovable, Decagon, Polymarket, and Airwallex have either adopted or enhanced their use of our platform. These entities join a prestigious roster of AI pioneers and global giants like Meta, Cursor, Sony, and Tesla.We are committed to revolutionizing how organizations leverage data. Join us on this transformative journey!Become a part of our mission to innovate Observability for Developers! We aim to redefine how engineers monitor, debug, and scale their production applications through HyperDX, now a part of ClickHouse. HyperDX is an open-source platform that converts telemetry data into actionable insights. Envision a world where logs, metrics, traces, and session replays integrate effortlessly to identify root causes with unprecedented speed. If you’ve ever been frustrated at 2 AM with tools like Grafana, Datadog, or Elastic for not providing the insights you need, you’ll understand the challenge we’re addressing. Now, you have the opportunity to help us tackle this issue.We are seeking a Senior Backend Engineer to contribute to the development of a petabyte-scale, high-performance observability platform, with a strong emphasis on delivering an exceptional developer experience (the DX in HyperDX).

Role overview As a Senior Backend Engineer on a B2B contract with jobgether, the focus is on building and maintaining backend systems for business clients. This position is fully remote but requires residency in Germany. What you will do Design, develop, and enhance backend solutions that address the needs of business customers Collaborate with cross-functional teams to connect backend systems with various products and services Ensure delivery of dependable, high-quality software that aligns with client requirements Collaboration This role involves regular interaction with colleagues in engineering, product, and other departments to support smooth project execution and system integration.

Join Our Team at JimdoAt Jimdo, we empower solopreneurs and micro-businesses to thrive by simplifying the journey of building successful online ventures. Since our inception in 2007, we have evolved from a small initiative in a Northern German farmhouse to a leading AI-driven platform with a diverse team of over 220 professionals from more than 50 nations, helping to create over 36 million websites worldwide.We believe in personalized, data-driven guidance that combines design, business tools, and cutting-edge AI technology to transform real user insights into actionable steps for our customers. Our mission is clear: to help self-employed individuals navigate the complexities of running a business with confidence.Your Role:As a Senior Backend Engineer, you will be instrumental in enhancing and scaling our backend systems, ensuring they deliver optimal performance and reliability. You will collaborate with cross-functional teams to create seamless integrations and contribute to our commitment to innovation.Your Contributions:Design, develop, and enhance API services with a focus on scalability and performance.Work closely with cross-functional teams to understand requirements and ensure backend solutions are fully integrated.Maintain high standards of code quality through thorough reviews and testing.Diagnose and resolve backend issues to minimize downtime and enhance performance.Stay abreast of industry trends and best practices in backend development.Provide valuable insights and feedback to the Tech Lead and stakeholders regarding backend solutions.

Grafana Labs is a globally recognized leader in open-source technology, proudly serving over 20 million users worldwide. Our flagship product, Grafana, is the go-to visualization tool for a diverse array of use cases, from monitoring beehives to tracking climate change in the Alps. Our distinctive dashboards have gained visibility in prestigious venues like NASA launches, Minecraft HQ, Wimbledon, and the Tour de France. We empower over 3,000 organizations, including industry giants like Bloomberg, JPMorgan Chase, and eBay, to effectively manage their observability strategies with the Grafana LGTM Stack, available through Grafana Cloud or self-managed with the Grafana Enterprise Stack, both incorporating scalable metrics (Grafana Mimir), logs (Grafana Loki), and traces (Grafana Tempo). As we rapidly grow, we remain committed to our core values: an open-source heritage, a collaborative global culture, and a passion for impactful work. Our team thrives in an innovative atmosphere driven by transparency, autonomy, and trust.If this role excites you, we encourage you to apply, even if you don’t meet every requirement. This could be a pivotal moment in your career.Senior Backend Engineer, AlertingThis is a remote opportunity and we invite applications from Germany.The Opportunity:The Grafana Alerting team is central to our mission of enhancing user alert management within the Grafana open-source project (link). Our backend-focused team collaborates closely with customers and the Grafana Cloud teams to ensure alerting capabilities are optimized for both on-premise and cloud environments.Our projects span a wide domain, including:Designing distributed systems for scalable alert ingestion and delivery of Prometheus-based alerts.Integrating alert setup and delivery processes to function uniformly for both Grafana and Prometheus-based alerts.Creating distributed systems that can evaluate Grafana-managed alerts at a rate exceeding 500 evaluations per second in production.Grafana Alerting is trusted globally, monitoring critical medical devices and infrastructure.

Empowering Every Employee.Join us in our mission to become the world's most utilized AI employee experience platform by transforming the work experience for frontline employees.At flipapp, we aim to revolutionize the world of frontline workers and give them a voice! Become a Flip Game Changer and collaborate with an exceptional team to ensure that all employees, regardless of their workplace, can access vital internal information. Are you ready to transform the work life of millions? Join us! Job TeaserAs a Senior Software Engineer, you will play a crucial role in enhancing the backend of our employee communication platform. Your responsibilities will include the secure design, hands-on development, and management of server applications in our core domains. This position is ideal for an experienced engineer with 5+ years in the field, proficient in the JVM ecosystem, and eager to oversee mission-critical production systems while promoting technical excellence within an international agile team.What You Can ExpectArchitect and Develop Core Services: Design, develop, and operate essential backend services in our User Management domain, ensuring secure integration with our Keycloak instance.Leverage the JVM Stack: Engage directly with our primary technology stack, primarily JVM-based (Kotlin, Micronaut), alongside additional components developed in Python and Go.Drive Engineering Excellence: Build software following modern practices: API first, conducting code reviews, implementing automated tests, and utilizing MR environments for exploratory testing prior to merges.Own the Topics: Take responsibility for technical subjects that matter to you, driving important decisions and fostering alignment across teams within our backend guild.Deployment and Operations: Deploy (Kubernetes, Helm) and monitor (Grafana, Sentry, Mixpanel) your services with the support of a dedicated SRE team for on-call duties.What You Bring to the TableWe are looking for a skilled, experienced engineer who is passionate about making a difference in the workplace.

About Qualifyze:Founded in 2019, Qualifyze has quickly established itself as a premier provider in supply chain compliance management within the Life Sciences sector, gaining the trust of over 1,500 pharmaceutical and healthcare firms worldwide. Our sophisticated digital suite of solutions seamlessly connects manufacturers, suppliers, and a global network of more than 250 auditors and quality professionals.With an impressive portfolio that includes over 4,500 audits conducted across 85+ countries, and boasting the largest, most accurate supplier network along with advanced data analytics tools, Qualifyze is your comprehensive partner for quality compliance and supply chain risk mitigation in the Life Sciences industry.

About JimdoAt Jimdo, we empower self-employed individuals and micro-businesses by simplifying the journey to success. Founded in 2007 by three friends in a farmhouse in Northern Germany, we have evolved into a profitable, remote-first company with over 220 employees from more than 50 nationalities, operating in over 15 countries. With over 36 million websites created, we are more than a website builder; we are an AI-driven platform that supports our users in running and growing their businesses effectively.Our commitment to personalized, data-driven guidance ensures that our platform provides clear insights and actionable steps, allowing our customers to focus on what truly matters for their business growth.Role Overview:As a Senior Backend Engineer for JimdoPay, you will play a crucial role in developing our integrated payment solution designed to support solopreneurs with a comprehensive suite of payment capabilities. You will contribute to key features, including embedded payments, link-to-pay options, and intelligent quoting tools. Collaborating closely with product, design, and engineering teams, you will ensure the delivery of secure and scalable backend services leveraging top Payment Service Providers (PSPs).Your Impact:Develop REST APIs using Kotlin or Java with a strong focus on scalability, reliability, and performance.Implement secure and efficient integrations with payment APIs.Design and develop RESTful services and event-driven architectures.Manage data storage effectively using relational databases.Contribute to CI/CD pipelines and automated testing processes.Work collaboratively across teams to deliver comprehensive solutions.What You Bring:Over 6 years of experience in backend software development.Strong expertise in Kotlin or Java.Proven skills in REST API design.In-depth experience with relational databases.Familiarity with CI/CD practices and testing automation.Excellent collaboration skills for cross-functional teamwork.

Grafana Labs creates open-source observability tools used by millions around the world. Companies like Bloomberg, JPMorgan Chase, and eBay depend on products such as Grafana Mimir, Grafana Loki, and Grafana Tempo to monitor and analyze their infrastructure. The team values transparency, collaboration, and purposeful work. This Senior Backend Engineer role is fully remote and open to candidates based in Germany, Spain, the UK, or Sweden. Role overview The focus of this position is the Grafana Mimir open-source project. Senior Backend Engineers join either the Query or Storage sub-team, working on distributed systems that support Grafana Cloud Metrics across major cloud providers. The main priorities are scaling, reliability, and performance for a leading metrics platform. What you will do Maintain and enhance the Grafana Mimir OSS project Work on distributed systems designed for large-scale, high-performance environments Collaborate with engineers to deliver major features and improvements Drive performance and reliability improvements based on real-world usage Write and review pull requests Create design documentation for new features and changes Contribute to release automation Participate in the on-call rotation for systems managed by your team Our culture Grafana Labs encourages openness, teamwork, and meaningful contributions. The company supports remote collaboration and values engineers who care about open-source technology and want to make a difference.

About the Team Join the Sell Online Tribe at SumUp, where we are transforming how merchants establish their online presence. Our team designs and builds solutions that empower millions of entrepreneurs—from barbers to bakers—to sell their products and services from anywhere. With a focus on Online Store and Bookings, our products form the backbone of SumUp’s ecosystem, enabling merchants to manage appointments, showcase offerings, and process payments seamlessly from their mobile devices. We are a dynamic, cross-functional team of Product Managers, Designers, and Engineers dedicated to creating exceptional mobile experiences. As part of our team, you’ll play a vital role in expanding into new industries, bridging the gap between web and mobile platforms, and simplifying digital commerce for small businesses globally. About the Role As a Senior Backend Engineer within the Bifrost team, you will be instrumental in the development of SumUp's key merchant-facing online products. You will contribute to the growth and scalability of pivotal products such as Payment Links, Virtual Terminal, and Unified Gift Cards, while also enhancing integration products that deliver essential functionalities across various SumUp services. We seek a developer who champions reliability, collaboration, and continuous improvement. You will thrive in a high-impact environment where your contributions directly enhance merchant success and team scalability. Your Responsibilities Ensure redundancy for the scalability and continuous enhancement of SumUp’s high-priority online products. Contribute to the implementation, growth, and integration of Online Checkouts across SumUp. Engage actively in planning and review sessions at both quarterly and sprint levels, providing constructive feedback and accurate estimations. Monitor existing services and perform necessary fixes to maintain platform reliability. Implement new features with maintainable and testable code. Optimize application performance for improved scalability. Participate in code reviews to uphold high standards of code quality. You Will Excel in This Role If: You possess over 5 years of experience in backend engineering, specifically with Golang. You demonstrate a strong grasp of fundamental system architecture, design principles, data modeling, and API design. You have substantial experience with distributed and fault-tolerant systems. You are passionate about continuous learning and improvement.

Discover the Mission Behind Secfix In Europe, over 1.78 million small and medium-sized businesses face the challenge of complying with various information security frameworks to successfully offer their products and services to enterprise clients.Secfix simplifies security compliance for SMBs in Europe. Our platform automates the processes for ISO 27001, GDPR, TISAX, and SOC 2, allowing businesses to achieve compliance in mere weeks rather than months. By integrating seamlessly with existing technology stacks (such as AWS, Azure AD, and Jira), we automatically gather the necessary data for compliance and generate actionable checklists to ensure ongoing adherence.As we continue to expand rapidly, we're seeking talented engineers to enhance and scale our product offerings. Check out our culture guide to learn more!Why You Should Consider Joining SecfixAt Secfix, we are an innovative, fully remote startup with a vibrant, close-knit team dedicated to becoming the leading compliance automation provider in Europe.In just two years, we grew from zero revenue to over $1M ARR, with most costs covered by our earnings. Our recent $12M Series A funding has brought our total investment to $17M, supported by prominent investors like Alstin Capital, Neosfer (Commerzbank), and Bayern Capital.As a Senior Backend Engineer, you will play a pivotal role in shaping and developing products that serve real users, including CTOs, COOs, and engineering teams within SMBs. You will also contribute to the growth of a high-performance, fully remote software startup.Who We Are Looking ForWe're creating an environment at Secfix where ambitious and independent engineers can excel. We seek individuals who take pride in crafting tangible products, are curious about user engagement with our features, and adopt a design-first approach to ensure scalable and maintainable systems. We prioritize ownership of products and outcomes over merely managing tasks in Jira.We acknowledge that startup life can be challenging, but we believe it can also be rewarding. Bring your dedication and desire to grow, and we will provide an environment that fosters your happiness, health, and empowerment.

About the CompanyAndercore is an innovative AI-powered trading platform revolutionizing the industrial supply chain for infrastructure, energy, and construction materials. We connect thoroughly vetted suppliers from Asia, Europe, and the GCC region with local demand through a seamless integrated platform.Our proprietary AI technology digitizes and automates the entire lifecycle of materials trade—covering procurement, pricing, inventory management, logistics, and embedded financing—thus transforming countless manual processes into real-time, orchestrated workflows.Buyers enjoy instant quotes, dependable availability, and predictable delivery via our unified operating system. Suppliers benefit from precise forecasting, effective demand management, and smooth integration into cross-border fulfillment networks. We collaborate with leading brands to execute both dropship and cross-dock fulfillment strategies for large-scale transactions, turning global supply chains into predictable, repeatable, software-driven workflows.Having achieved triple-digit million GMV and operating in six international markets, we are swiftly moving towards profitability. With a diverse team of over 80 members based in Berlin and Asia, we are on a mission to build the world’s first industrial-grade AI operating system for materials—redefining the dynamics of global trade in one of the most critical industries.Backed by top-tier investors and global banking partners, we recently secured a $40 million Series B funding round led by Atomico, Project A, and Invent Capital, supported by institutional backing from Commerzbank and KfW.About the RoleAs a Senior Backend Engineer, you will serve as a technical pillar within our team, expected to lead by example, influence architectural decisions, and elevate the quality of our deliverables. You will work autonomously while remaining deeply embedded in a collaborative engineering culture.Tech Stack: Java 21 (Spring Boot 3), Python, LangGraph, LLM APIs (OpenAI, Anthropic, Gemini), PostgreSQL, Kinesis, AWS, Terraform, GitHub Actions, Node.js, TypeScript, Next.js, React.

At AlfaDocs, our mission is to revolutionize healthcare. Our innovative software platform simplifies daily operations for medical practices and enhances patient engagement by optimizing practice management and strengthening patient relationships. With our comprehensive, cloud-based solution, healthcare professionals can dedicate more time to patient care and less to administrative tasks.We pride ourselves on delivering high-performance solutions while cultivating a collaborative and respectful environment where every team member's contributions are appreciated. Our collective passion is to create a lasting impact in the healthcare sector, fostering an atmosphere where both our team and customers can flourish.As a Senior Full Stack Backend Engineer (all genders), you will take charge of secure, scalable feature development, owning the backend, shaping architectural design, and mentoring fellow team members.Full Stack Development: Lead the entire lifecycle of feature development from conception to deployment, with a strong emphasis on security and scalability.Architecture & Design: Make key architectural decisions to ensure compliance with healthcare industry standards and long-term system sustainability.Cross-Functional Collaboration: Collaborate closely with product managers, designers, and stakeholders to ensure technical solutions align with business objectives.Team Mentorship: Provide mentorship to junior developers, nurturing a culture of learning and innovation.Automation & CI/CD: Implement automated testing, continuous integration, and deployment pipelines to uphold high code quality.Technical Roadmapping: Contribute to planning by assessing technical feasibility, estimating timelines, and identifying resource needs.Industry Awareness: Stay updated on emerging technologies and industry trends to enhance product and process efficiency continuously.Team Culture: Foster a positive team atmosphere infused with humor and optimism, helping to maintain morale and collaboration during challenging times.

Full-time | Munich | Seed Stage | Equity + SalaryJoin Us in Building a Transformative CompanyAt Knowlix, we are dedicated to amplifying the productivity of small businesses tenfold. Our goal is to establish ourselves as the premier platform for human-AI and AI-to-AI collaboration.Although we are in the early stages, we have grand ambitions. This is a unique chance for you to influence a product that will reach millions and set industry standards.We prioritize speed, frequent iterations, and exceptional quality. If you are passionate about building, deploying, and scaling innovative solutions, particularly leveraging AI for significant improvements, this is the opportunity for you.Why Choose Knowlix Now?We are a well-funded seed-stage startup, supported by top-tier investors and seasoned founders.Our technology is functional and our initial users are experiencing its transformative effects.We are targeting a vast market with a product that revolutionizes work dynamics.As one of our early team members, you will have significant influence and ownership over the company’s direction.We believe that rapid progress is achieved through focused efforts and continuous iteration.This isn't just a job; it's a chance to contribute to a once-in-a-generation company if we execute our vision effectively.The RoleWe are seeking a pragmatic and enthusiastic Backend Engineer with robust skills in Python and a strong understanding of SQL and cloud infrastructure. You will collaborate closely with AI researchers, product designers, and DevOps engineers to create a seamless interface between human users and our AI systems. Familiarity with Go, Rust, and Swift is advantageous, especially for future components such as microservices or mobile interfaces.

As a Senior Backend / Platform Engineer at causaprima, you will take charge of the foundational platform that empowers our agents. This includes overseeing an event-driven architecture, managing data pipelines, integrating with customer accounting systems, and ensuring the infrastructure is reliable, auditable, and swift.Key ResponsibilitiesEvent Store Management — Lead the development of an append-only PostgreSQL event store featuring tamper-evident hash chaining, real-time event distribution, agent replay capabilities, and schema versioning.Cryptographic Signature Infrastructure — Implement key management and signature verification for all agent events, including establishing approval chains for external actions.Workflow Constraint Engine — Develop a robust gateway that verifies authorization before any external action (email, payment, API call) is executed.PII Vault & GDPR Compliance — Ensure the safe storage of personal data through isolated, encrypted solutions, allowing for the right to erasure and data residency per region.Multi-Tenancy Architecture — Design systems that incorporate row-level security and tenant isolation across all data stores, including tenant-scoped LLM API keys.Authorization (Cerbos) — Implement attribute-based access control for agents and humans with deterministic policy evaluations, ensuring LLMs are not responsible for authorization decisions.MCP Security Layer — Establish authentication protocols, capability-based scoping per partner, and rate limiting for the Model Context Protocol endpoint.Database Architecture — Drive PostgreSQL schema design, create effective indexing strategies, and enhance performance tuning and read replica topology.

Role overview Taktile supports banks and fintech companies by automating key decisions such as credit checks and risk assessments. The Senior Backend Engineer on Team Decide focuses on building and improving the distributed execution engine that drives customer workflows. This engine forms the foundation of Taktile’s automated decision-making platform. What you will do Design and implement backend systems for distributed workflow execution Take ownership of critical systems throughout their lifecycle, from architecture to deployment Collaborate with a small, dedicated team where each engineer’s perspective directly influences the product Address complex backend problems specific to automated decision-making in financial technology Location This role is based in Taktile’s Berlin office.

About the Role We are seeking a talented Backend Engineer to join our innovative team at sportygroup. In this position, you will play a crucial role in developing microservices within a distributed deployment environment, focusing on containerization technologies such as Docker and Kubernetes. You will be tasked with crafting the core logic of sophisticated systems that handle millions of requests daily, moving beyond basic CRUD applications. Having built our platform from the ground up just three years ago, you'll be working with cutting-edge technology, free from the burdens of legacy code. With millions of users relying on our platform, your contributions will directly enhance our commitment to stability and robustness, ensuring our services are available around the clock. Our Technology Stack (Familiarity with all not required) Programming Language: Java 17 Frameworks: Spring Boot (Tomcat, Netty), Spring Data, Spring Cloud Architecture: Microservices, REST APIs, Message Queues Databases: MySQL, MyBatis, ShardingSphere, MongoDB Caching Technologies: Redis (AWS ElastiCache), ElasticSearch Message Queue: RocketMQ Cloud Infrastructure: Docker, Kubernetes, AWS Monitoring Tools: Grafana, Prometheus, Loki, Tempo, AWS CloudWatch Your Responsibilities Design and develop highly scalable backends for mobile internet applications serving millions of users. Collaborate with Project Managers and fellow developers to outline new features and user stories for upcoming projects. Engage in code reviews to ensure adherence to the original vision outlined in user stories, architectural patterns, and resource libraries. Provide timely support for production applications to swiftly diagnose and resolve any issues. Participate actively in team ceremonies, including planning, product demos, and retrospectives. Mentor junior team members to foster their professional growth. Qualifications At least 3 years of experience in a relevant engineering role. Must be based in Europe. Preferred experience with Spring Boot, Spring Cloud, Spring Data, and iBATIS. Demonstrated expertise in developing highly scalable web backends. Experience in designing highly transactional systems. Strong understanding of Object-Oriented Design (OOD) principles. Advanced skills in application analysis and design engineering.

P-1327 At Databricks, we are driven by a passion for empowering data teams to tackle some of the world’s most complex challenges. From revolutionizing transportation methods to speeding up medical innovations, our mission is to build and operate the leading data and AI infrastructure platform, enabling our customers to leverage profound data insights to enhance their business. Established by engineers, Databricks is embarking on an ambitious journey to develop the most advanced Lakehouse Platform. While we have a solid foundation, we aim to elevate our offerings to create significantly improved products. Our goal is to reimagine every component to provide our customers with the fastest, most user-friendly, and secure data platform for all their data workloads. As a Senior Software Engineer, you will be a key member of our Berlin site and play a pivotal role in our multi-year mission to realize our Lakehouse vision. You will engage in the entire development lifecycle and embody the core values of Databricks. The impact you will have: Our backend teams operate across various domains within our essential service platforms. You may encounter challenges such as: Addressing issues that encompass product development and infrastructure, including distributed systems, scalable service architecture, monitoring, workflow orchestration, and enhancing developer experience. Creating reliable, secure, and high-performance services and client libraries for managing and accessing massive amounts of data on cloud storage solutions, such as AWS S3, GCS, and Azure Blob Store. Developing product features that empower our customers to efficiently store and access their data.

About GetYourGuideGetYourGuide stands as the world's leading marketplace for unforgettable travel experiences. Travelers utilize our platform to uncover the best activities in their chosen destination. Since our inception in 2009, over 150 million tours, activities, and attraction tickets have been booked through GetYourGuide by adventurers from around the globe. With a dedicated global team of more than 800 travel experts and technologists, we are proudly headquartered in Berlin, complemented by 17 local offices worldwide.The Mission:At GetYourGuide, technology is the driving force behind our growth. Our work within the Marketplace is transforming global travel experiences, and we invite you to join us in this endeavor.The features we develop facilitate seamless bookings for our customers while empowering our partners to expand their businesses. This complex task presents a remarkable opportunity to create extraordinary solutions that impact global travel. From building supplier infrastructures that enhance our partners' businesses to innovating marketplace features that propel our growth, you will have the chance to craft incredible solutions at GetYourGuide.Whether you're engaged in developing dynamic search algorithms or designing new features to accelerate our company's growth, your contributions will leave a lasting impact. Our teams consistently push boundaries, exploring innovative ways to bring the magic of travel to people around the world.We operate in cross-functional mission teams composed of backend and full-stack engineers, mobile engineers, data engineers, product managers, and designers.