HELP US CHANGE THE WAY THE WORLD WORKS

BUILD SOMETHING THAT MATTERS.

Langdock exists to change the way the world works, bridging the gap between what technology can do and what people actually do

with it. We bring all leading AI models into one secure, model-agnostic platform and make them usable across entire organizations.

Over 10,000 companies use our platform every day, from fast-growing startups to some of Europe's largest enterprises. Their

employees open Langdock to draft strategies, analyze documents, or automate workflows - helping them to work smarter, think more

creatively, and reach their full potential.

ABOUT THE ROLE

Platform Engineers at Langdock work on shared backend systems that many product features depend on. This includes the AI engine,

queues, document processing, integrations, code execution, authentication, and billing.

The job is to make these systems reliable and understandable enough that other engineers can build on them. That means designing

clear APIs, choosing the right data models, handling failure cases, writing tests for important invariants, adding useful

observability, and keeping abstractions simple enough to maintain.

Typical problems include deciding which parts of a long conversation to keep in context, retrying background jobs without running

the same side effect twice, handling model-provider failures during streaming responses, refreshing integration tokens before they

expire, and enforcing tenant boundaries in shared services.

WHAT YOU WILL DO

Examples of the kind of systems Platform Engineers own:

The AI engine at the core of the platform. It handles the prompts users send through Langdock and abstracts over providers such

as OpenAI, Anthropic, Google, Azure, Bedrock, Mistral, and open-source models. The work includes prompt caching, routing,

failover across model deployments, and normalizing provider-specific behavior behind a stable internal interface.

The workflow runtime. Workflows need to execute reliably across agent steps, conditions, loops, structured-output extraction,

human-in-the-loop pauses, and actions across hundreds of integrations. The platform work is about making that execution model

predictable, observable, and safe to extend.

Context-window optimization. Long conversations, uploaded files, and tool calls need to stay correct while model costs stay

under control. This is one of the most cost-sensitive parts of the platform.

A code execution service for running untrusted customer code. Today this means JavaScript in some places, but the direction

includes broader execution environments such as Bash. The hard part is clear isolation: secrets, filesystem access, outbound

network access, and tenant boundaries need to be controlled explicitly.

A flexible integration layer for connecting Langdock to external services. Most integrations are standard REST APIs, but the

platform also needs to support industry standards for tools and agents, including Model Context Protocol (MCP) and

agent-to-agent (A2A) communication.

You will pick up a platform area over time and can shape where it goes next.

TECH STACK

TypeScript across a Turborepo monorepo

Next.js, React, and Tailwind on the front end

Node.js services and workers on the back end

PostgreSQL with Prisma; Redis with BullMQ

A multi-provider model abstraction across OpenAI, Anthropic, Google, Azure, Bedrock, Mistral, and open-source models

Sandboxed Node.js for code execution

Multi-cloud storage abstraction over AWS S3, Azure File Share, and GCS

Terraform for infrastructure orchestration

Kubernetes for workloads that need portable deployment across cloud providers

Linear for ticket management

Datadog and Sentry for observability

You should be familiar with most of this. We trust you to pick up the rest quickly.

HOW WE SHIP

Small temporary squads of 2 to 3 engineers around a topic. Squads form, ship, and dissolve.

Every change is linked to a Linear ticket and ships via PR. CI runs lint, tests, and AI review.

We deploy continuously to production.

We use AI tools heavily in engineering. You have freedom in the tools to use (eg. Cursor, Claude, Codex). We are building a

strong harness that allows engineers to move fast while shipping high quality software.

We are building a strong operating system around AI-assisted shipping: clear ticket context, focused branches, AI review before

human review, explicit rollout notes for risky changes, and production verification after release.

The engineer who ships a change owns it in production. If something breaks, you lead the fix.

YOU MIGHT BE A FIT IF…

3 to 6 years of experience building back-end systems that handle real load: queues, caches, databases, streaming pipelines,

distributed schedulers. You can talk through failure modes and tradeoffs from systems you have actually run.

Strong in TypeScript and Node. Opinionated about API design, abstractions, and where boundaries should sit.

Some infrastructure experience: Terraform, Kubernetes, cloud deployments, networking, or operating services across AWS, Azure,

or GCP.

Very driven. You have high standards for yourself, move fast without needing to be pushed, and want to do the best work of your

career.

Working knowledge of the LLM ecosystem at a technical level: context windows, tool calling, streaming protocols, provider

quirks, prompt caching.

Habit of adding metrics, traces, and structured logs because you have been on call before and know you will need them.

Security-first mindset. Multi-tenant data isolation is a design constraint, not a postscript.

Heavy user of AI tooling in your own development workflow, with opinions on what works and what does not. We are looking for

people who are already compounding their output with AI.

You are a kind person who cares about the people around you.

THE ENVIRONMENT

We work from our office in Berlin, Greifswalder Strasse 212. Everyone works together in person because the hardest problems get

solved faster at a whiteboard than in a Slack thread. Conversations happen faster, problems get solved quicker, and we actually

know each other.

Days start at 8:30. Lunch & dinner are together. We run, go to the gym, and take care of ourselves. Health is not separate from

work here, it is part of how we work well.

The vibe is calm but intense. No one is yelling or panicking. But everyone is working hard on things that matter.

COMPENSATION

Salaries are transparent and tied to levels, not negotiation. All roles include equity.

We will figure out the right level together based on your experience and scope. Levels are about the work you own, not your title

or years of experience. We narrow down the expected salary range early in the process.

NEXT STEPS

We move fast. Most processes complete within two weeks.

If this sounds like your kind of work, we would like to meet you.

Role

Platform Engineer - m/f/d

Location

Berlin, Switzerland

Published

May 7

Deadline

August 20

Source

Employer website

Tags for this job

Java Node.js React AWS Azure GCP Kubernetes AI TypeScript JavaScript Go Rust Terraform Next.js Tailwind Redis PostgreSQL

Similar Jobs

Platform Engineer (m/f/d)

charles•Berlin

PLATFORM ENGINEER (M/W/D) PERMANENT EMPLOYEE, FULL-TIME · BERLIN (HYBRID) THE IMPACT YOU WILL MAKE From socks, and petfood, to cosmetics, charles is helping countless brands reach their loyal customers every day, one conversation at a time. As a Platform Engineer at charles, you’ll help drive our product and infrastructure forward, enabling us to revolutionize conversational commerce. You’re a generalist with a passion for infrastructure and operations. You’ll work closely with the other Engineers to build scalable, high-performing systems, while improving system architecture, resolving tech debt, and ensuring seamless user experiences. Your contributions will result in reliable, data-driven solutions that support millions of users and push the boundaries of messaging-driven commerce. THIS IS WHAT YOU WILL BE DOING You'll build and operate our internal developer platform: the core services, APIs, and infrastructure that every product team builds on top of. That means writing software, not just configuring it, and standing up infrastructure that holds up under real production load. * You will be a part of a team that designs, develops, and operates the core services, APIs, and infrastructure that every product team builds on top of. Examples: building a billing API, maintaining Kubernetes operators, building an authentication broker, optimizing performance in our core monolith, and improving security in our link shortening service. * You will regularly partner with product teams to investigate issues, learn their use cases, and ship platform changes that hold up in production. * You'll join our on-call rotation as part of our "you build it, you run it" philosophy. * You'll have real room to drive cost and reliability initiatives that have measurable, company-wide impact. * You'll build the automations that make our whole software development lifecycle faster and more robust. YOU'LL FIT GREAT WITH THESE SKILLS AND VALUES * 3+ years of software engineering experience. You're a generalist - comfortable moving between writing a service, debugging infrastructure, and improving a pipeline in the same week. * You can build and ship production services in Go or TypeScript; not just scripts and glue. You also know Bash and have the judgment to pick the right tool instead of forcing your favorite one. * You can build and operate cloud infrastructure that survives real production workloads, ideally on GCP. * You've worked with GitHub Actions or similar CI/CD tools, and you know what a healthy and efficient pipeline looks like. * You have a solid grasp of scalable system design, distributed systems, cloud technologies, and how to roll out infrastructure changes. * You're comfortable with remote work and asynchronous communication. You also know that good collaboration needs visibility and cooperation, not just output. * You use AI tools effectively without handing over the steering wheel. * Product and business sense: you understand customer needs and focus on solving the right problems, not just building technically interesting solutions. * You're a self-directed learner. You don't need to know our whole stack on day one, but when you hit something unfamiliar, you dig in, ask good questions, and follow through. We'll give you room and context to grow; you bring the drive. Meeting all requirements is not necessary to apply. We encourage candidates who meet some but not all of these qualifications to submit their application. THINGS WE OFFER * Working on challenging and impactful projects at the forefront of one of the most innovative industries in Europe * Collaborating with some of the leading experts in Conversational Commerce and disrupting a fast-growing industry * Joining forces with a unique community of Tech, Product, Sales, Success, and Marketing experts committed to building the best product in Conversational Commerce. * High autonomy and visibility across the business with the option to own and drive new initiatives * Celebrating our major and micro-wins as well as getting to know each other better at regular team-building events * Sharing VSOP (virtual stock options) in the ownership and success of Charles * Working in a vibrant office in the heart of Berlin overlooking the Wall memorial * Flexible working model: Hybrid setup with remote work options and flexible hours * Earning a competitive compensation package What else we offer? * Urban Sports Club membership * Mental Health support through OpenUp * Free company lunch on Thursdays * A friendly, open, multicultural work environment * Dog-friendly office * Discounts on BVG tickets About us It’s better to have a conversation charles is a conversational AI and CRM for consumer brands that attracts, converts, services, and retains customers via AI agents, marketing automations, bulk campaigns, or an inbox for human agents. We help brands to maximize customer engagement and revenue through conversational channels such as WhatsApp. Businesses can reach customers in an interactive way, collect data to expand customer understanding and guide them to targeted offers that convert. charles’ AI Agents deliver hyperpersonalized experiences at scale while ensuring enterprise-grade security and GDPR compliance. Founded by Kapten & Son co-founder, Artjem Weissbeck, and ex-McKinsey ecommerce lead, Andreas Tussing. charles is backed by Salesforce Ventures, Accel and HV Capital and has raised over EUR 30 million to build the global leader in conversational marketing SaaS for global consumer brands. Charles and diversity: be yourself and no-one else Different perspectives bring innovation and richer work environments. We’re committed to building an inclusive company where you always feel like you belong, whatever your age, gender identity, ethnicity, religion, sexual orientation, disability, status or neurodiversity. These values sit at the heart of our hiring process, so we can create a welcoming workplace where everyone feels valued and heard.

Deadline: Aug 16Posted: Jul 17

Senior Platform Engineer (f/m/d)

Bunch•Berlin

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.

Deadline: Aug 16Posted: Jun 26

PythonNode.jsAWS

AI Engineer (m/f/d) in B2B SaaS AI Startup

traide AI•Berlin

UNSERE MISSION We are traide AI, a industry groundbreaking, VC-backed, B2B startup powered by AI (we did AI long before the hype). Our exceptional revenue growth over the pasts years positions us at the brink of a significant expansion phase. We're building the definitive "global trade compliance intelligence platform" — going far beyond tariff classification to cover the full breadth of trade compliance, including tariff classification, export control classification, and much more, all fully powered by (artificial-) Intelligence. We're already transforming the landscape of international trade. Our product, team, and vision have already convinced prestigious partners like PwC, and our customer base includes industry juggernauts such as Siemens, everyday industry heroes like Würth, alongside other notable figures in industry. We are rapidly solidifying our leadership position within the EU while eyeing global expansion. AI is deeply embedded in the DNA of our company, reflected in the extensive AI expertise of our founders, the culture within our company and team, and our proven track record of developing and commercializing AI while delivering real business value with AI-centered features. This role aims to strengthen our AI DNA, enabling us to further execute our vision and mission. If you are an exceptional individual and feel that you would be a great fit for our compact yet highly skilled team, let us know about you. We would be delighted to hear from you! DEINE AUFGABEN As an AI Engineer, you’ll collaborate closely with our product and tech team to develop innovative features that address customer needs and drive business impact. In this role, you'll engage in: * Research & Experimentation: Research and delve into cutting-edge AI techniques, prototype novel ideas, and rigorously validate concepts through experiments and metrics. * End-to-End Development: Transform research insights into production-ready features through careful planning, prototype development, quality assurance, and seamless integration of AI functionalities. * Problem Solving & Innovation: With a curious and analytical mindset, you’ll ask the deeper “why” questions to uncover root problems, explore creative solutions, and bring them to life. * Take a product-focused approach and care about building solutions that are robust, scalable, and easy to use. While you’ll take on significant responsibility, you’re never alone. You can rely on a supportive team where knowledge-sharing and mutual growth are core values. NACH WEM WIR SUCHEN * Minimum of 5 years of professional experience in: Data-Sience, Machine learning, Deeplearning, Generative AI & AI-Agents. With a proven track record of developing and deploying AI-driven solutions in production environments. Focus is especially on bridge from prototype to bring it into production. * Strong Software-Engineering OR Data-Science background. Have a Bachelor’s degree in Computer Science, Software Engineering or comparable experience. * Strong analytical, logical reasoning, skills with a creative approach to problem-solving. * Willingness to learn new technologies, work within uncertainties and adapt to changing requirements. * Communication skills, collaborative attitude and ability to work effectively within a diverse team. WARUM WIR? So, why choose traide AI? On the product side * Meetings and processes kept to a minimum and focus on getting things done (Kanban Style). * We value clean and well-tested code and ship features only once they are up to standard * Modern tech stack with the opportunity to shape future decisions: React + Chakra-UI, Node.js + GraphQL, Python + Pytorch, LLM/Generative AI and more In the organization ✔️ traide AI is a place where you can be your authentic self! ✔️ We are creators, not rule followers. In our open culture, ideas take precedence over hierarchies, truth finding is essential ✔️ Our work culture is flexible and grounded entirely in trust and integrity, where everyone strives to grow & learn ✔️ And the cherry on top? Our offices are the coolest around – our cozy Berlin office is conveniently located at Rosenthaler Platz and offers fantastic lunch spots. We look forward to receiving your application and getting to know you better If you have any questions, just email us.

Deadline: Aug 16Posted: Jul 17