Senior Backend Engineer, Shop & Payments (Go/React)

Payrails

ABOUT PAYRAILS Payrails is a global payment software company helping leading enterprises to take control of their payment operations and maximize performance. With deep experience in the payments space and firsthand knowledge of merchants' challenges, we’ve seen how fragmented, complex, and inefficient these systems can become. Now, we are setting a new industry standard for how enterprises around the world manage and optimize payments, with more control, visibility and flexibility than ever before. Our vision is to reimagine payments from the ground up. We are building a deeply integrated meta layer that spans the entire payment lifecycle with a modular architecture. This helps us give leading brands building blocks to craft solutions to most complex operational challenges, tailor seamless customer experiences and grow their business. We are backed by some of the world’s top investors including Andreessen Horowitz, HV Capital, EQT Ventures and General Catalyst, who share our mission to simplify payment complexity globally. At Payrails, we’re committed to building a team of exceptional people - not just talented, but driven to build, solve, and deliver at the highest level. Excellence isn’t just a value here; it’s a way of working. We believe that great people thrive in environments where there’s trust, clarity, and shared purpose. We work openly and collaboratively, with deep respect for each other’s craft. Everyone is encouraged to understand the bigger picture - what we’re building, why it matters, and what stands in the way. When people have that context, they move faster, take ownership, and make better decisions. We care about creating a culture where people feel inspired to do their best work and a deep sense of responsibility to help us bring our vision to life. Success at Payrails means staying focused on the problems that matter most, and executing with purpose. YOUR TEAM Payrails is a true tech company: our Product is designed by engineers for engineers. We believe in quality before delivery: our mission is to provide an outstanding Payment experience with a strong eye on automation, resilience, and scalability. Our engineering culture is focused on 3 main pillars:  * We aim for operational excellence  * We promote open communication and quick feedback * We share knowledge and learn continuously Our tech team offers you the chance to work alongside a group of highly ambitious and knowledgeable Engineers, while being faced with complex problems that affect customers on a global scale. HOW YOU WILL MAKE AN IMPACT * You will design, develop, test, deploy and maintain software in a thriving environment * You will manage individual project priorities and deliverables whilst working in a team who enjoy knowledge sharing sessions * You will stay up to date with the latest trends in technology * You work within your cross-functional team to uphold the highest technical standards right across the product WHAT WE ARE LOOKING FOR * You show vast experience in developing software in large-scale production systems, ideally using Golang * You have a great foundation in microservice principles, event sourcing, cloud-native infrastructure, and clean code best practices * You are comfortable with both relational and non-relational databases * You have a proven track record working in agile and cross-functional teams with a strong focus on quality and delivery * You strive to join a high-performance engineering culture based on strong cooperation and innovation * You are an innovative thinker, able to quickly recognize opportunities and apply your expertise to deliver solutions that support outstanding customer experiences * You are proficient in English with effective communication skills * An experience in FinTech or in the payments domain will be a plus WHAT WE OFFER * High impact and high velocity environment with the most talented and ambitious people you will ever work with * A chance to shape the story of a company and a category from the ground up * Real ownership. You’ll have the freedom and trust to build, test, and take lead * A product used by the best brands around the world * Visa and relocation support for you and your family where required * Hybrid working with an office in the heart of Berlin * Regular team events, activities and off-sites * Discounted Urban Sports Club membership * Competitive salary and equity package * 27 days of annual paid vacation

Parloa

ABOUT PARLOA Parloa’s mission is to make every customer conversation feel effortless for both customers and the companies serving them. As agentic AI accelerates, Parloans are shaping the foundation of a new era in customer experience, one where customer support is no longer transactions, but meaningful exchanges. It is not just a vision; Parloa has powered over ONE BILLION interactions between global enterprise brands and their customers, with companies like Booking.com, HealthEquity, Allianz, SAP, BarmeniaGothaer, and TUI already deploying Parloa at scale. ABOUT THE ROLE: As a Senior Backend Engineer, you will work on a marketplace of tools and integrations which Parloa's agents leverage via MCP. Managed access to business systems dramatically increases their value while controlling for security and risk. You haven't worked with our stack? That's fine! We would love to get in touch as long as you are open to learn and code in Typescript.   AREAS OF OWNERSHIP: * Design, build, and maintain secure and scalable backend services * Optimize system performance for low latency, high throughput, and reliability * Collaborate across teams to integrate machine learning components into production systems * Lead technical initiatives - design, planning, implementation, and maintenance (3-9 months horizon) * Drive initiatives to improve operational excellence * Contribute to the evolution of our architecture and engineering culture * Set cultural standards for fearless iteration, bias for action, and pragmatic perfectionism—design for tomorrow, build for today. OUR TECH STACK: TypeScript, Node.js, React, Python, FastAPI, Kubernetes, MongoDB, Azure, Kafka, NATS  WHO YOU ARE: * 7+ years of experience as a software engineer * Experience in Typescript, Node (ideally NestJS); or experience with comparable frameworks in other languages, and a willingness to learn and code in Typescript * Experience with developing and maintaining highly scalable and reliable microservices * Deep understanding of distributed systems, event-driven architectures, and APIs * Experience with cloud-native infrastructure (e.g., Kubernetes, GCP/AWS) * A bias for action, strong ownership, and a passion for clean, pragmatic code * Experience in leading technical projects  (3-9 months horizon) * Strong spoken and written communication skills in English * Curiosity and openness to work with AI-assisted coding tools * Thrives in ambiguous, high-stakes environments with a strong sense of urgency. * Embodies Parloa’s ambition: to build Europe’s leading engineering culture and a world-class AI platform. * Motivated by making the impossible possible and building something iconic.   OUR ENGINEERING VALUES: At Parloa, we hire, promote, and evaluate based on cultural and technical excellence. You’ll thrive here if you: * Earn Trust – act with transparency and reliability. * Obsess Over Customers – always start with the customer problem. * Think Big – set bold goals and pursue them fearlessly. * Have Integrity – do the right thing, especially when it’s hard. * Disagree & Commit – debate with candor, align fast, and deliver. * Own It – take full responsibility for outcomes, not just tasks. * Dive Deep – master the details without losing sight of the big picture. * Bias for Action – move fast, decide quickly, iterate fearlessly. * Deliver Value – measure success by customer and business impact. * Insist on the Highest Standards – raise the bar continuously. * Go the Extra Mile – make the impossible possible. * Hire & Elevate the Best – raise the bar with every hire   OUR RECRUITING PROCESS:   Recruiter Call → Technical Peer Interview → 360° Tech Interview Loop → Bar Raiser   WHY PARLOA?   We’re at the beginning of a new era in customer experience, one where AI doesn’t just respond, but understands, reasons, and takes action. We’re building agentic AI that enterprises trust with their most important customer moments: complex questions, high volumes, real stakes. When millions of people reach out to a brand, those interactions aren’t just support tickets; they’re defining experiences. We’re here to raise the standard: making every conversation seamless, intelligent, and genuinely helpful. If you care about shaping how businesses and customers connect at scale—and want your work to matter in real, everyday moments—this is where you do it. At Parloa, ownership isn’t a buzzword; it means being accountable for outcomes, not just tasks. We operate in a category that’s evolving fast, where the bar is high, and the problems are complex. We hire people who think in solutions, communicate with clarity, and follow through. People who are comfortable making decisions, taking responsibility, and raising the standard for themselves and those around them. We’ve grown beyond the earliest startup phase, but we’ve kept the intensity: fast execution, direct feedback, and a strong expectation to contribute meaningfully from day one. Backed by leading global investors like General Catalyst, EQT Ventures, and Altimeter Capital, we’re scaling with a clear ambition: to become the global category leader in enterprise-grade conversational AI.     ---------------------------------------------------------------------------------------------------------------------------------- Parloa is committed to upholding the highest data protection standards for our clients' and employees' data. All our employees are instrumental in ensuring the utmost care, GDPR, and ISO compliance, including ISO 27001, in handling sensitive information. Parloa is an e-verify employer in the USA. Please click here to learn more. * We provide equal opportunities to all qualified applicants regardless race, gender, sexual orientation, age, religion, national origin, disability status, socioeconomic background and other characteristics.

Peec AI

WHAT YOU’LL DO * Take ownership of complex backend systems end-to-end - from scoping and architecture to high-quality, reliable delivery * Design and build robust, scalable APIs and distributed systems that power our products and deliver exceptional performance * Collaborate closely with Product, Frontend, and Design teams to translate product ideas into well-architected backend solutions * Push the boundaries of what’s possible with modern backend technologies, driving innovation in both architecture and developer experience * Contribute to evolving our backend architecture, infrastructure, and developer tooling to support rapid iteration at scale * Proactively identify opportunities to improve system performance, reliability, and developer experience - and drive those initiatives through to execution WHAT WE’RE LOOKING FOR * 5+ years of professional backend engineering experience, ideally in fast-paced startup or high-growth environments * Deep expertise in TypeScript and modern backend frameworks, with a proven track record of building and scaling production systems * Experience designing and implementing APIs (REST, GraphQL, or gRPC) that power user-facing products * Strong experience working with SQL databases (e.g. PostgreSQL), including schema design, query optimization, and data modeling for production systems * Familiarity with cloud-native architectures, ideally on GCP (e.g. Cloud Functions, Cloud Tasks, Firestore) * Familiarity with DevOps practices, CI/CD pipelines, and infrastructure-as-code * Strong communication skills and a high sense of ownership - able to operate with autonomy while staying aligned with team goals * Some markers of excellence, which could also be non-work related, like having a high FIDE rating * Most importantly: we care deeply about working with genuinely kind, collaborative, and hard-working people who make the team better through empathy and openness TECH STACK * Languages: TypeScript * Backend: GCP, Cloud Functions, Cloud Tasks, RabbitMC, Firestore, PostgreSQL, Elasticsearch * AI Models: OpenAI, Claude, Perplexity, Gemini, Llama, etc. BONUS POINTS * You’ve personally built and scaled a system (e.g. side project, startup, open-source) that handled significant traffic or complexity, and learned real lessons from it * Background working on AI products or data-heavy applications * Academic background in Computer Science or a related technical field * Experience in starting a company or working at a top-tier high-growth startup WHAT WE OFFER * Exciting and challenging work with real impact and ownership at one of Europe’s fastest-growing Series A startups * Regular team events and off-sites * Aggressive equity compensation package * Paid Dinner & Uber home when working late * The most beautiful office space and work environment in Berlin