Lead Java Backend Developer (All Genders)

Empowering Every Employee.Our mission is to be the world's most utilized AI employee experience platform, transforming the way frontline employees operate.At Flip, we aim to revolutionize the workplace for frontline workers, ensuring every employee has a voice. Become a Flip Game Changer and collaborate with a dynamic team dedicated to providing all employee…

Role overview PPRO is hiring an Engineering Manager to lead its Cash Flow Management team in Munich. This manager will guide a group of engineers focused on improving and streamlining financial systems, with the goal of strengthening cash flow processes. What you will do Lead and support engineers working on cash flow management projects Shape and carry out strategies that align with business objectives Oversee delivery of engineering solutions that meet quality expectations Promote innovation and continuous improvement within the team Location This position is based in Munich.

Join our dynamic technology team as a Lead Software Engineer specializing in Backend Development. In this pivotal role, you will spearhead the design and implementation of backend systems, ensuring scalability and performance. You will collaborate closely with cross-functional teams to drive innovation and enhance our product offerings. If you are passionate about coding, problem-solving, and leading a team, we want to hear from you!

Empowering Every Employee.Our mission is to be the world's most utilized AI employee experience platform by transforming the way frontline employees operate.At flipapp, we aim to revolutionize the world of frontline workers and give them a voice! Become a flip game changer and work with an unbeatable team to ensure all employees, regardless of where they work, have access to their internal company information. Are you ready to transform the work life of millions? Join us! Job TeaserWhat You Can ExpectLead a team of engineers in designing, developing, and operating integration services that link our customers' internal systems with Flip (e.g., HR systems, knowledge bases).Advance our integration platform, a dedicated runtime environment for custom integrations (based on Kubernetes and ArgoCD).Our tech stack primarily uses JVM-based technologies (Kotlin, Micronaut), with some components developed in Python and JavaScript.Collaborate remotely within international, cross-functional agile teams.Follow modern software engineering practices (API-first, code reviews, automated testing, MR environments for exploratory testing, and tasteful experimental AI augmentation).Deploy (Kubernetes, Helm) and monitor (Grafana, Sentry, Mixpanel) our services within teams, supported by a dedicated team of SREs for on-call duties.Participate in customer calls along with your product manager to understand their specific challenges and empower your team to develop solutions that address a majority of customer contexts.Take initiative on technical topics important to you, driving significant decisions, and ensuring alignment across teams within our backend guild.What You Bring to the TableWe are looking for a skilled and experienced engineer who is ready to tackle complex integration challenges.Must Haves:5+ years of software engineering experience focused on backend systems.Experience in designing, implementing, deploying, and operating asynchronous backend services, ideally for data-heavy integrations with other systems.Exceptional communication skills that enable direct collaboration with customers.

Empowering Every Employee.Our mission is to become the world's leading AI employee experience platform, transforming the way frontline employees engage with their work.At Flip, we are dedicated to revolutionizing the workplace for frontline workers, giving them a voice and access to vital internal information, regardless of their location. If you're ready to make a significant impact and enhance the work lives of millions, you've found the right opportunity!Job OverviewWhat You Can ExpectLead a talented team of engineers in designing, developing, and managing integration services that connect our clients' internal systems with Flip, such as HR systems and knowledge bases.Advance our integration platform, a specialized runtime environment for custom integrations using Kubernetes and ArgoCD.Work primarily with a JVM-based tech stack (Kotlin, Micronaut), alongside some components developed in Python and JavaScript.Collaborate remotely within international, cross-functional agile teams, primarily based in Europe.Adhere to modern software engineering best practices, including API-first designs, code reviews, automated testing, and experimental AI enhancements.Oversee deployment (Kubernetes, Helm) and monitoring (Grafana, Sentry, Mixpanel) of our services, with support from a dedicated SRE team.Engage in customer calls with your product manager to understand their unique challenges and empower your team to create comprehensive solutions.Take initiative on technical topics that matter to you, influencing key decisions and aligning teams within our backend guild.

Why Join Nebius?Nebius is at the forefront of a transformative era in cloud computing, dedicated to empowering the global AI economy. We develop innovative tools and resources that enable our clients to tackle real-world challenges and revolutionize industries without incurring hefty infrastructure costs or needing to assemble extensive in-house AI/ML teams. Our team operates on the cutting edge of AI cloud infrastructure, collaborating with some of the most seasoned and forward-thinking leaders and engineers in the sector.Our Work EnvironmentHeadquartered in Amsterdam and publicly traded on Nasdaq, Nebius boasts a global presence with R&D hubs in Europe, North America, and Israel. Our workforce of over 1,400 includes more than 400 highly skilled engineers with profound expertise in both hardware and software engineering, alongside a dedicated in-house AI R&D team.Nebius Managed Kubernetes (mk8s) aims to enhance the Nebius cloud platform by offering a Kubernetes-native solution for running AI systems efficiently and with minimal operational overhead. With just a click, users can deploy a Kubernetes cluster utilizing Nebius services for compute (VMs) and networking. By 2026, we anticipate scaling our services tenfold, managing customer workloads across tens of thousands of GPU servers in over 10 data centers.As the lead of the mk8s Core team, which is one of three mk8s teams, you will be responsible for the API, the core of the service control plane, cluster autoscaling, platform integrations, and managing Kubernetes add-ons.At Nebius, team leads are hands-on. We expect you to have a background as a senior or staff engineer and to initially contribute individually to gain context before assuming managerial responsibilities.Key Responsibilities:Lead by Example: Uphold high standards by dedicating significant time to individual contributor work, including writing and reviewing code, leading projects, and participating in on-call rotations, incident mitigation, and post-incident analysis.Team Management: Oversee 4-8 mid-to-senior engineers, providing context, coaching, and regular feedback.Technical Vision: Maintain the technical vision for your area of responsibility.Collaboration: Work with the Product Manager and Service Owner to shape product vision and strategic plans.Potential Outcomes as a Team LeadEnhance the service control plane to efficiently manage 20,000 GPU nodes within a single Kubernetes cluster, securing a significant contract for the company.

About the Role:As the Backend Engineering Lead for the FinDB team at payabl, you will take charge of the backend engineering function, pivotal in ensuring the reliability and consistency of financial data across various platforms. FinDB is a mission-critical fintech system at the heart of our operations, managing client funds, overseeing reconciliations, handling fees, and facilitating financial transactions that amount to millions of euros each day.This position emphasizes the design and scaling of backend systems that empower merchants to efficiently receive, process, and reconcile payments. You will be responsible for establishing the technical direction, quality benchmarks, and engineering culture within your team. A significant aspect of your role will be building a self-sufficient, high-ownership engineering team that minimizes dependency on individual contributors and promotes sustainable delivery practices.Location: Frankfurt, GermanyReporting to: Head of DevelopmentKey Responsibilities:Lead the backend architecture for a vital non-checkout fintech product, overseeing the management of client funds and financial data.Collaborate closely with the Head of Development, Delivery Manager, Product, Finance, and other stakeholders to define architectural requirements and non-functional specifications, including scalability, reliability, security, and performance.Design, implement, and refine scalable backend services utilizing PHP and the Laravel ecosystem, with flexibility for strong candidates.Choose and evolve frameworks, tools, and architectural patterns that align with the long-term strategy of the platform.Architect, optimize, and maintain complex MariaDB/MySQL schemas, ensuring data integrity and performance for financial transactions.Translate intricate business, regulatory, and financial requirements into robust technical solutions.Make critical backend technical decisions, balancing the introduction of new features with proactive management of technical debt.Lead and engage in code reviews, maintaining high standards for code quality, testing, and maintainability.Operate effectively in high-pressure, deadline-oriented environments, including handling investigations, financial corrections, and urgent operational challenges.Mentor and guide engineers, fostering their technical growth, autonomy, and adherence to best practices.Build, recruit, and develop a self-sufficient, accountable engineering team.Cultivate a positive engineering culture rooted in transparency, trust, ownership, and technical excellence.Manage team performance, development plans, and recruitment in coordination with leadership.

Join PPRO, where we strive to simplify access to local payment methods, empowering businesses to sell globally using their preferred payment options. We collaborate with industry leaders like Ant Group, PayPal, and Stripe to tap into new markets and expand customer reach.Our diverse global team, comprising over 50 nationalities across more than 10 locations, is dedicated to delivering top-notch products and services. Our core values drive us to innovate in global commerce, embracing the principles of #chooseaction, #beopen, #thinkcustomer, #gofurther, and #wintogether.Role Overview:As a Senior Software Engineer (m/w/x) at PPRO, you will play a pivotal role in shaping the company's technical landscape. Your expertise will be essential in making impactful decisions that influence not only the product but also the team culture. You will tackle challenging technical issues, contribute to architectural and strategic direction, and mentor fellow engineers while collaborating closely on code development.

Join our dynamic team at dev2 as a Backend Software Engineer! In this role, you'll have the opportunity to design and develop robust backend systems that drive our innovative products. Your expertise in backend technologies will play a crucial role in enhancing our software solutions and improving the user experience.We are looking for passionate individuals who thrive in a collaborative environment. If you are eager to tackle complex challenges and contribute to impactful projects, we want to hear from you!

jobgether is looking for a Backend Engineer based in Germany. This position centers on building and maintaining the backend systems that support our platform. Role overview The Backend Engineer will work closely with front-end developers and other team members to deliver reliable, efficient applications. The main focus is on developing server-side features and ensuring the backend infrastructure meets the needs of the platform. What you will do Develop and maintain backend systems that power jobgether’s platform Collaborate with front-end developers to create seamless user experiences Use expertise in server-side languages and frameworks to improve product features Requirements Strong experience with server-side programming languages and frameworks Ability to work effectively with cross-functional teams Based in Germany

About the Role airapps is looking for a Backend Engineer to help shape backend systems for our applications. This position is based in the Berlin Metropolitan Area. What You Will Do Design and build backend systems that support our products Focus on scalability and performance throughout development Location Berlin Metropolitan Area

airapps is looking for a Backend DevOps Engineer to help improve and automate software development workflows. This position is based in the Berlin Metropolitan Area and involves working alongside both software developers and IT staff. Role overview This role focuses on managing application deployments and maintaining system reliability. The Backend DevOps Engineer will play a key part in streamlining processes to support the development team and keep systems performing well. Collaboration Expect to work closely with colleagues across development and IT, sharing responsibility for smooth releases and stable infrastructure. Location This position is located in the Berlin Metropolitan Area.

Join the Bosch Group as an intern in our Value Stream and Material Flow Planning team. This internship offers a unique opportunity to gain hands-on experience in the components manufacturing sector. You will work alongside industry experts, contributing to innovative projects that optimize production processes.

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.

About NomosAt Nomos, our mission is to make energy accessible and cost-effective for households across Europe. We collaborate with leading technology firms to innovate energy solutions that integrate seamlessly with electric vehicles, heat pumps, battery storage systems, and more, driving down costs for consumers.About the TeamFounded by Stefan and Nils in 2024, our diverse team comprises former researchers, entrepreneurs, and senior engineers. We are united by our shared vision to revolutionize the energy landscape in Europe, fueled by a collective frustration with the existing system. We cherish a culture of open communication, accountability, and inclusivity, and we thrive in our Berlin Mitte office, valuing meritocracy and craftsmanship.Your RoleArchitect for the Future: You will help design and enhance our own operating system, which includes a modular billing engine and energy market communication protocols. Your role is crucial in ensuring our architecture keeps pace with exponential growth.Simplifying Complexity: The energy sector is rife with challenges. Your task is to tackle this complexity by developing clear abstractions and reducing the difficulty of shipping new features.Quality Over Speed: We believe in balancing speed with quality. You will ensure that we invest the time necessary to build reliable solutions that facilitate future growth.Upholding Standards: You will set engineering benchmarks, evaluate critical code, and maintain accountability within the team. Your vigilance will help us avoid shortcuts and uphold best practices.ResponsibilitiesDesign and enhance the core systems powering Nomos, including billing, procurement, metering, partner integrations, and comprehensive data pipelines.Focus on correctness, performance, and resilience. Always consider system behavior under significantly increased loads.Leverage AI tools to streamline repetitive tasks while maintaining ownership of the overall architecture and decision-making process.

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).

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.

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.

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.