
vivenu · Remote Germany
Redefine the future of live entertainment tech Welcome to vivenu, the global leader in event ticketing tech and one of the world’s fastest-growing live enterta...
Redefine the future of live entertainment tech
Welcome to vivenu, the global leader in event ticketing tech and one of the world’s fastest-growing live entertainment tech firms. We are transforming event ticketing for global leaders like the Grammys, the Golden Globes, Stanford University and the Hockenheimring turning what was once a simple transaction into a strategic business advantage. Backed by over $65 million in funding, our platform empowers event organizers to own their brand experience, unlock deep data insights, and seamlessly integrate ticketing into their digital infrastructure.
With six offices worldwide and growing, we deliver a customizable, intuitive solution and industry-leading support that simplify even the most complex ticketing challenges – helping organizers deliver exceptional experiences and drive real growth.
Join us and build the future of live entertainment.
With over 10 million end users and usage quadrupling annually, our infrastructure now handles over 1 billion requests per month — and counting. Our API-first platform solves complex system challenges at scale — delivering performance, flexibility, and reliability for the world’s leading live entertainment brands.
This role offers an opportunity to scale and extend our payments platform to handle our ever-increasing volume and expand our global reach, while ensuring absolute reliability and technical excellence. You will manage complex financial data flows on a platform that currently integrates with over 15 payment systems. You will lead the technical challenge of building, integrating, and evolving sophisticated payment solutions that empower our customers and define our financial infrastructure.
Redefine the future of live entertainment tech Welcome to vivenu, the global leader in event ticketing tech and one of the world’s fastest-growing live entertainment tech firms. We are transforming event ticketing for global leaders like the Grammys, the Golden Globes, Stanford University and the Hockenheimring turning what was once a simple transaction into a strategic business advantage. Backed by over $65 million in funding, our platform empowers event organizers to own their brand experience, unlock deep data insights, and seamlessly integrate ticketing into their digital infrastructure. With six offices worldwide and growing, we deliver a customizable, intuitive solution and industry-leading support that simplify even the most complex ticketing challenges – helping organizers deliver exceptional experiences and drive real growth. Join us and build the future of live entertainment. With over 10 million end users and usage quadrupling annually, our infrastructure now handles over 1 billion requests per month — and counting. Our API-first platform solves complex system challenges at scale — delivering performance, flexibility, and reliability for the world’s leading live entertainment brands. This isn't just a maintenance role – it is a blank canvas to build, scale, and architect a state-of-the-art AppSec program from the ground up. We are currently operating at a fraction of our ultimate potential, which means you have an immense, blank-canvas opportunity to fundamentally shape our security culture, processes, and tooling across the entire global engineering organization. You will drive the entire AppSec lifecycle: from offensive red teaming and threat modeling to risk-based vulnerability management and pioneering a true shift-left culture. What Makes This Role Challenging and Engaging: High-Impact Technical Environment: You won't just follow blueprints; you will holistically influence a shift-left architecture across both application and platform layers. Modern Technology Stack: Dive into securing a massive TypeScript monolith alongside Go supporting services, giving you hands-on experience in modern language security and advanced GitHub CI/CD pipeline hardening. Web and API: secure the application of the vivenu platform which provides customers with an out-of-the-box ticketing software as well as the underlying API structure Complex Multi-Cloud Architecture: Challenge your skills against a sophisticated multi-tenant, multi-region environment spanning k8s, GCP (our primary compute) and and separate database services Cutting-Edge Deployment: Secure a next-gen Kubernetes "satellite architecture" utilizing hardened private compute nodes, VPC peering, and Argo CD for GitOps—a true, modern cloud-native security mandate.
WHAT TO EXPECT We are a startup digital agency, and no two projects, clients, or even days look the same. But all of our days are agentic-first. In ecommerce we build on Shopify and Liquid and Next.js, with custom AWS microservices and apps that take Shopify well past the defaults. On the marketing side we build highly customised sites in Next.js and React, with careful design and animation and a real focus on how the page performs and feels. In automotive and other industries we build full platforms, AI tools and integrations, from stock-car locators to configurators and a lot more. Across all of it, we bring AI into the work through our own products. Here nothing will be fixed. You will work across changing projects and settings, on long builds that run for months and shorter spikes to figure out how a business can actually use AI, and you will help us rethink how agency work is done. Sound like your kind of place? Here is what we need from you. YOUR COMPETENCIES We're looking for engineers who are excited by agentic and AI-native systems - turning models into products that hold up under real users, real load, and real time. You'll build LLM integrations, agents, and RAG pipelines, treat prompt engineering as a code discipline, and make systems reliable through evaluation, guardrails, and solid testing. Whether you're building your craft or already shaping the AI architecture of a project, we want to hear from you. We hire across levels - here's what each looks like at OH-SO: Junior AI/Agentic Engineer You're building your engineering craft - curious about why and how things work, not afraid to get your hands dirty, and eager to grow. You implement from clear briefs - LLM integrations, prompt scaffolding, RAG components - and write the tests and evaluations that keep them honest, comfortable using AI coding tools (Claude Code, Cursor, Copilot) under supervision. You want to understand why and how we're building things, ask what the purpose and the constraint are before you start, and your work is reviewed before it merges. AI/Agentic Engineer (typically 2-3+ years) You own an AI feature end-to-end - an agent flow, a RAG pipeline, an integration across its error paths and guardrails - delivered independently with light oversight. You build evaluation harnesses to prove quality rather than assume it, use AI coding tools autonomously in production, and contribute to the shared AI backbone (the AI-brain MCP and skill library). Senior AI/Agentic Engineer (typically 5+ years) You own the AI outcome of a project - you define the integration shape, the multi-agent architecture and orchestration, the evaluation strategy and guardrails, and you write the ADRs that document why. You're the technical credibility in the room, contribute patterns and skills back to the shared backbone, and mentor the engineers around you. You use AI to define new ways of working, and you think in long runtime: the AI landscape will shift underneath the project, so you build for inheritance and replaceable layers. You help us move forward as an organization and you act as an AI evangelist. What you bring to the table, at any level: * Experience building with LLMs or AI systems in production - integration, agents, RAG, or similar * Strong software engineering fundamentals in Python and/or TypeScript, and confidence designing and working with APIs * A habit of treating prompt engineering as a code discipline — with a real understanding of evaluation, guardrails, and reliability * A solid grasp of testing and quality: you build systems that hold up under real use, not just in a demo * A genuine interest in agentic systems and where the AI landscape is heading - and the judgement to apply it well, not just talk about it * Openness to collaborating with cross-functional teams - from designers to strategists - as well as directly with clients * You’re enjoying being part of a team, not a remote desk which prefers to work in isolation most of the time. WHAT YOU CAN LOOK FORWARD TO The stack you’ll work with: * Languages & core: Python and/or TypeScript, strong RESTful API design * AI & agents: LLM integration, RAG and vector databases, agent frameworks, multi-agent orchestration, MCP and agent infrastructure, prompt engineering, context and memory management, evaluation and guardrails * Testing & quality: automated testing, evaluation harnesses, observability and monitoring of AI systems * Cloud & infrastructure: cloud platforms, containerisation with Docker and Kubernetes, CI/CD (infrastructure-as-code with Terraform a plus) * AI tooling: Claude Code, Cursor, Copilot, Google Antigravity Who you will work with We are a bunch of colleagues originally from similar backgrounds who got tired of how things were usually done and set out to find better ways. That is the whole reason this company exists, and it is still what we are doing. We are not a place of rockstars and egos. People here ask questions out loud, show rough work without flinching, and would rather help each other get something right than look clever alone. We push each other, in the good way, and we do not take ourselves too seriously while we are at it. You would be joining that. You’ll work closely with the crafts, designers and strategists, and just as easily with the people steering the projects and the business. There is no wall between you and any of it. Take on the parts you are ready for, and when you want more, a pitch, a client conversation, a bigger call, speak up at the right moment and the door is open. Smaller team. More ownership. Bigger work.
Raisin is the world’s leading platform for savings and investment products. Founded in 2012, the FinTech connects consumers with banks in the EU, the UK and the US. This gives consumers better interest rates and banks a diversified form of refinancing. Our vision is to offer savings and investments without barriers and thus open up the global 160 trillion euro market. Raisin currently employs more than 800 people from over 75 countries worldwide. Today, the platform holds over 80 billion euros in assets from more than one million investors which have accrued over 5 billion euros in returns. Team The US Payments & Partner Operations (PPO) team owns the core money-movement stack for the Raisin US’ platform: ACH payment initiation, reconciliation, returns, and cut-off scheduling, plus the customer accounts lifecycle — bank linking, fraud signal integration, and identity verification. Beyond payments, the team manages the B2B layer: onboarding and configuring Deposit-taking Banks, service banks, and custodians, including their user/role management. It also covers invoicing data pipelines for Deposit taking banks, escheatment workflows for dormant accounts and visibility for operations and customer support through our internal platform portal. Your Responsibilities * Own and deliver features and bug fixes end-to-end with minimal guidance. * Identify and address bottlenecks in the team's delivery flow, from design to deployment. * Utilize AI tools intensively for increasing our ability and pace to deliver software. * Promote best practices around our core stack. * Transfer knowledge proactively, lead by example in learning and mentoring. * Contribute to improving how we program, test, review, and ship code. * Flag process gaps and propose pragmatic improvements. * Elevate engineers in growing their technical skills. * Provide constructive code review and solve complex problems together. * Quickly build practical depth in PPO's domains. * Contribute meaningfully to new feature design and implementation. * Bring engineering perspective into domain discussions alongside other team roles like Product Manager, Tech Lead and Engineering Lead. Your Profile We are looking for a versatile Senior Full-Stack Engineer with a deep, rock-solid foundation in the .NET and SQL Server ecosystem, who has the architectural maturity to adapt to other layers and the drive to learn the rest of our stack. Required: * Designing, optimizing, and maintaining robust enterprise APIs using .NET Web API. * Building and structuring web applications with .Net * Strong relational database design, complex querying, and performance tuning in SQL Server. * Design Patterns: A deep understanding of SOLID principles and a proven track record of writing Clean Code. * Structural Strategy: Practical experience working within modern architectural patterns, specifically Clean / Onion Architecture, to keep codebases decoupled and testable. * Fast Learner: You don't mind stepping out of your .NET comfort zone to touch a React component or a Go microservice. * Problem Solver: Highly analytical with a strong focus on detail and quality. * Collaborator: A team-first peer who thrives on open communication and cross-layer collaboration. Desired: * Experience building user interfaces with React JS, JavaScript, and HTML, accompanied by testing tools like Jest or React Testing Library. * Exposure to, or curiosity about environments like Node.js, GoLang, or Java / Spring Boot, and building APIs * Experience with GraphQL. * Working knowledge or conceptual familiarity with MongoDB or NoSQL Databases * Familiarity with NUnit for automated testing * Familiarity with secure authentication via OAuth and ASP.NET Identity. Join our mission, join our team – and grow with us! At Raisin, we care about each other and it is one of our top priorities to foster an open and caring environment in which everyone feels welcome and comfortable. Our culture is strongly driven by our ambitious team, which connects more than 75 different nationalities. As part of our team, you will benefit from: Raisin SE Spain * Employee Development Budget of €2,000 and four full training days per year. * Flexible working hours, home office and 28 vacation days. Raisin Applicant Privacy Policy [https://www.raisin.com/corporate/raisin-applicant-privacy-policy/] We value diversity and the unique experiences each individual brings. If you’re excited about this role but don’t meet every requirement, we still encourage you to apply. We are an equal opportunity employer and are committed to creating an inclusive environment for everyone, regardless of race, colour, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, or gender identity.