
Knowunity · Berlin
ABOUT THE ROLE Foundation is the team that makes every product team at Knowunity faster, we own the core backend in Go, the Flutter mobile foundation, infrastr...
Foundation is the team that makes every product team at Knowunity faster, we own the core backend in Go, the Flutter mobile
foundation, infrastructure, and the agentic/AI setup that's central to how we ship. We're hiring a Senior Platform Engineer to
help define and evolve the systems everything else is built on, and to operate where product engineering and AI tooling meet.
You'll work on the systems the rest of engineering depends on, and help shape how AI fits into our day-to-day work.
Your Impact
systems work.
experience in Go and Flutter.
serious engineering surface.
don't need your name on a feature to feel the work mattered.
Our contact centre platform is what keeps merchant support running across all of SumUp's global markets, handling thousands of interactions every day across the globe. As our Senior Platform Engineer, you'll own the technical side of this space entirely, reviewing how it's built today, driving the implementation of new technologies, and leading the move towards AI-powered support. If you want real technical ownership, a broad scope, and work that directly shapes the experience merchants have when they need help most, this is the role. WHAT YOU'LL DO: * Review our current contact centre setup, identify what's working and what can be improved, and shape a clear roadmap for the voice channel * Design and improve automation and AI-powered self-service solutions, including conversational AI agents and intelligent call routing * Administer and evolve our Five9 environment, maintaining integrations with internal systems via APIs and Salesforce * Lead the implementation of our AI voice solution, including the rollout of an Agent Copilot tool to support live agents handling voice calls in real time * Work closely with operations, product, and engineering teams to align on tooling decisions and deliver solutions that reduce friction for merchants and agents alike * Support and mentor junior team members, helping build contact centre and AI capability across the team WHAT WE'RE LOOKING FOR: * Solid experience in contact centre platform development and administration, with hands-on knowledge of Five9, Genesys, or similar platforms, and strong API integration skills * Comfortable working with JavaScript and Salesforce in a distributed systems environment * Experience building with AI tools — whether LLM APIs, conversational AI platforms, or automation frameworks — and an understanding of how to apply them practically in a support context * Ability to review a complex technical environment, identify what needs to change, and communicate that clearly to both technical and non-technical stakeholders * Track record of working across multiple markets or in a global support environment, navigating different languages, regulations, and merchant needs * Strong English communication skills, written and verbal WHY YOU SHOULD JOIN SUMUP: * 🌎 Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Berlin office. This involves an office-first setup * 🌈 Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced * 🚀 Enrolment onto our Virtual Stock Option programme: you will own a stake in SumUp's future success * 📚 A dedicated annual L&D budget of €2000 for your individual development, which can be used to attend conferences and/or advance your career through further education * 💶 A corporate pension scheme where we match up to 20% of your contributions * 🏖️ Generous time off: enjoy 28 days of paid leave plus public holidays and special leave days * 🏋️ Numerous other benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidised office lunches * 🌴 Break4me: 1-month sabbatical after 3 years of service * 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team About SumUp Be empowered to do more that matters. At SumUp, we're on a mission to empower small businesses across the globe by providing simple and affordable tools that allow them to thrive. Today, over 4 million businesses in 37 markets rely on SumUp as their financial partner to manage payments, finance and customer relationships. Our commitment to small businesses is reflected in our diverse team of over 3,000 SumUppers from over 90 nationalities, united by global collaboration and an innovative mindset. Our core values lay the foundation for who we are and what we stand for, shaping our work culture and driving our success. We foster inclusivity and a continuous learning culture, providing a safe space for personal and professional growth. Our differences make us unique and strong as we strive to create an environment where everyone belongs and feels supported, no matter how they identify. SumUp is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce. We don't make hiring or employment decisions based on race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited. Discover more about our culture and opportunities on our careers website, and follow our journey on LinkedIn, Instagram, and TikTok Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumU Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.
bunch is building the backbone of private markets. We are enabling next-gen fund operations with one integrated system that combines secure data infrastructure, AI-powered workflows and expert fund services. If you value ownership, growth through real responsibility, and working with a thoughtful, ambitious team, this role might be for you. YOUR ROLE We are seeking a Senior Platform Engineer to design, build, and maintain the infrastructure and automation that power our applications. In this role, you will combine the speed and reliability focus of DevOps with the architectural depth of Platform Engineering, ensuring that our development teams can deliver high-quality software quickly, securely, and at scale. You will be responsible for designing infrastructure, implementing automation, ensuring platform reliability, and guiding the evolution of our delivery pipelines and cloud environments. This is a highly collaborative position that bridges operations, development, and security. TOP RESPONSIBILITIES * Design, implement, and maintain cloud-based infrastructure (AWS) for scalability, reliability, and security. * Manage infrastructure-as-code using Terraform, or similar tools. * Oversee container orchestration platforms such as Kubernetes. * Ensure robust disaster recovery and high availability strategies. * Build, maintain, and optimize CI/CD pipelines for rapid and reliable deployments. * Automate infrastructure provisioning, configuration management, and application deployments. * Integrate automated testing and security checks into delivery workflows. * Implement logging, alerting, and observability tools to monitor infrastructure and application performance. * Proactively identify and resolve performance bottlenecks, outages, or system health issues. * Collaborate with development teams to troubleshoot and resolve deployment failures. * Ensure infrastructure and delivery processes meet security, compliance, and governance standards. * Apply security patches and updates to infrastructure and platform components. * Partner with software engineers to ensure development aligns with operational best practices. * Lead technical decision-making for infrastructure and platform initiatives. * Mentor junior engineers and promote DevOps best practices across teams. ABOUT YOU * At least 6 years of experience in senior Platform, DevOps, or Infrastructure Engineering roles. * Strong expertise with AWS cloud platform. * Deep knowledge of Kubernetes, Docker, and container orchestration. * Proficiency with infrastructure-as-code (Terraform, etc.). * Experience building and maintaining CI/CD pipelines (GitHub Actions or any similar tool). * Strong understanding of observability tools (Prometheus, Grafana, ELK, Datadog, etc.). * Solid grasp of networking, system administration, and cloud security practices. * Strong problem-solving skills and ability to debug complex issues. * Excellent communication and collaboration abilities. * Experience leading projects and influencing engineering decisions. * Nice to Have: * Background in SRE (Site Reliability Engineering) practices. * Familiarity with compliance frameworks (SOC 2, ISO 27001). * Programming skills in TypeScript, Python or Go. OUR TECH STACK We strive to keep our technology stack as simple and efficient as possible. * Frontend & Backend: TypeScript on both the frontend (Svelte) and the backend (Node.js with Nest.js) * Database: MySQL * Infrastructure: Kubernetes (K8S) on top of AWS * Source Control & CI/CD: GitHub * Third-Party Applications: * FusionAuth for authentication * Retool for low-code internal frontend solutions * Twilio and SendGrid for sending SMS and emails WORKPLACE AND BENEFITS * Become one of the key builders of bunch and architect our go-to-market strategy * Take part in a network of people passionate about investment and work closely with the most interesting players in the private market * Benefit from working with a diverse mix of talents, unrivaled energy, and team spirit within a culture of inclusion * Flexible hours, hybrid setup (3 times/week in office) * 28 days of vacation per year + 2 company days, on top of public holidays * A competitive compensation package * A great tech and work setup with everything you need WHAT YOUR INTERVIEW JOURNEY WILL LOOK LIKE * First interview with the People team (30 min): get acquainted with the bunch and to understand if what we’re offering is what you’re searching for * Hiring Manager Interview (60 min): this conversation with an Engineering Manager will cover product-focused culture and values, including collaboration, ownership, self-awareness, and quality standards. * Take-home assignment for you to showcase your ability to design and implement reliable infrastructure and platform solutions. We will send a task and give you a few days to work on it (the actual hands-on work should not take more than 3-4 hours). * Technical Interview (60 min): this interview in the form of a technical conversation will focus on discussing your assignment, approaches. * Final Round: Meet our VP of Engineering (45 min) to learn about ways of working, vision for bunch, and team culture. * Meet-and-Greet (Optional - 30 min) to meet a few members of your future cross-functional team. About bunch bunch is building the operating infrastructure for the next generation of private markets. We combine AI-powered automation with deep regulatory expertise to replace fragmented spreadsheets and manual processes with one integrated platform across the fund lifecycle, purpose-built for private markets heading toward $32 trillion in Assets Under Management. We've 4x our ARR in 2025, crossed 150 fund managers and 12,000 LPs on the platform, and just closed our $35M Series B in May 2026. We're looking for ambitious people who want real ownership of hard problems, and who care about building infrastructure that actually matters to the people using it. ____ At bunch, we're committed to an inclusive environment where diversity is valued and celebrated. We provide equal opportunities to all qualified applicants. We process personal data in line with applicable laws (including GDPR). See our Privacy Policy for details on your rights and how to reach us.
ABOUT US At GotPhoto, we are freeing photographers to be more successful. Through our platforms GotPhoto.com and fotograf.de, we help professional photographers simplify and transform the way they work — from photo management and client communication to ordering and payment processing. Our end-to-end workflow and e-commerce solution gives photographers more time to focus on what matters most: being behind the lens. Since 2012, we’ve built a sustainable and profitable business driven by entrepreneurial spirit, innovation, and a deep understanding of photographers’ everyday challenges. Today, thousands of photographers trust our software , creating their own success stories along the way. As the leading e-commerce engine for professional volume photographers and a business backed by EQT, one of the world’s leading private equity firms, we’re powered by a team of 150+ talented and international people building technology that simplifies photographers’ everyday work and helps them focus on capturing meaningful moments. Join us on our journey to empower photographers like never before. YOUR ROLE Do you want to build the platform that helps engineering teams move faster, ship safer, and scale smarter? You'll work at the intersection of Platform Engineering, SRE, Developer Experience, and AI Enablement—building the infrastructure, tooling, and guardrails that power a global SaaS platform. WHAT YOU'LL DO BUILD AND EVOLVE OUR PLATFORM * Design, build, and operate the cloud-native platform that supports our engineering organization. * Create reusable platform services, self-service capabilities, and infrastructure standards that help product teams deliver software faster and more reliably. ELEVATE DEVELOPER EXPERIENCE * Reduce friction across the software development lifecycle. * Build and improve CI/CD pipelines, internal tooling, automation, and developer workflows that increase productivity and accelerate delivery. * Partner with engineering teams to continuously improve the developer experience. DRIVE RELIABILITY & OBSERVABILITY * Improve the reliability and performance of our systems. * Define and maintain SLAs, SLOs, and observability standards using metrics, logs, tracing, and monitoring. * Support incident response, root-cause analysis, and continuous platform improvements. ENABLE AI-NATIVE ENGINEERING * Help shape the next generation of developer platforms. * Build infrastructure and workflows that support: * AI coding assistants such as GitHub Copilot, Cursor, and future AI development tools * Agentic AI infrastructure including MCP servers, tool-calling backends, and secure execution environments * AI workload observability including LLM tracing, latency, usage, and cost monitoring * Safe AI deployment workflows with model versioning, experimentation, rollbacks, and policy-driven guardrails CHAMPION SECURITY & PLATFORM EXCELLENCE * Embed security, compliance, and Infrastructure-as-Code best practices into engineering workflows. * Design scalable AWS architectures and automation that keep our platform secure, reliable, and ready for growth. LEAD THROUGH INFLUENCE * Share knowledge, mentor engineers, and drive cross-functional platform initiatives. * Help establish engineering best practices and foster a culture of continuous improvement. WHAT YOU BRING EXPERIENCE * 5+ years in Platform Engineering, SRE, Developer Experience, or a similar field * Experience building and operating production systems in AWS * Strong Infrastructure-as-Code and automation background TECHNICAL SKILLS * Cloud & Platform Technologies: You are experienced with AWS, Kubernetes, Terraform, Helm, and modern cloud-native infrastructure patterns. * Observability & Reliability: You know how to design systems that are observable, measurable, and resilient using tools such as OpenTelemetry, Prometheus, and Grafana. * Architecture & Systems Thinking: You understand distributed systems, event-driven architectures, authentication and authorization models, infrastructure automation, and modern deployment strategies. * Developer Enablement: You enjoy building tools and platforms that help other engineers be more productive. WHAT MAKES YOU SUCCESSFUL * Platform-as-a-Product Mindset: You think of internal platforms as products and care deeply about the developer experience. * Incremental Builder: You prefer iterative improvements, automation, and sustainable scaling over big-bang solutions. * Collaborative Partner: You enjoy working across teams, building alignment, and enabling others to succeed. * Humble Expert: You bring expertise, curiosity, and a willingness to learn from others. BONUS POINTS * Experience building Internal Developer Platforms (IDPs) * Experience with AI-assisted software development * Experience with MCP (Model Context Protocol) * Experience supporting AI/ML workloads in production * Experience in high-growth SaaS environments WHY YOU’LL LOVE LIFE AT GOTPHOTO * Best of Both Worlds: We live and breathe a flexible hybrid model. Our beautiful office at Hausvogteiplatz is our vibrant Berlin hub for collaboration, but you have the freedom to leverage the setup that works best for you. * Work from (Almost) Anywhere: We believe in flexibility that respects your lifestyle. Once you have completed your probation, you have the option to work remotely from within Europe for up to 40 days per year. Whether you are visiting family or simply seeking a change of scenery, we support a work-from-anywhere culture that helps you stay inspired. * Recharge & Unwind: We value your downtime. You start with 26 days of leave, plus we love to top that up with additional discretionary "X-days" to make sure you’re truly rested. * Multicultural & Inclusive Team: We thrive on diverse perspectives. Our international team fosters a culture of mutual respect and professional exchange, ensuring that fresh ideas and tolerance are at the heart of everything we build together. * Fuel Your Growth: We’re big on learning. You’ll get a dedicated education budget to explore new ideas and grow professionally. * Exclusive Employee Discounts: Get more for your money with access to the "Benefits at Work" platform, offering significant discounts on top global brands. * Your Benefits, Your Choice: Through Probonio, you get a monthly budget to spend on what matters to you—whether that’s your public transport pass or other flexible perks that fit your lifestyle. WHAT MATTERS TO US Research shows that candidates from underrepresented backgrounds may refrain from applying for positions if they feel they don't meet all qualifications. We strongly encourage you to apply if you’re interested: we're excited to discover how your distinctive experience can enhance our team! We work as one team. Wherever you come from. However, you identify. We believe in equal opportunities.