L

Langdock

Model-agnostic enterprise AI platform

Senior Security Engineer

Full-TimeUpdated on 10/20/2026
€90k - €140k/yr+ Equity
Senior
Berlin, Germany
In Person
CybersecuritySecurity Engineering & Architecture

About the job

Requirements
  • Hands-on application and infrastructure security experience, including understanding how modern SaaS applications and cloud environments are built, where they can fail, and how to protect them.
  • Ability to investigate vulnerabilities, assess practical impact, discuss remediation with engineers, and prioritize findings by urgency.
  • Experience working with penetration testers or vulnerability disclosure programs and taking findings through to verified fixes.
  • Ability to configure identity providers, multi-factor authentication, access policies, and device management, and automate related processes.
  • Ability to build scripts, workflows, and integrations to reduce recurring work, and use artificial intelligence tooling thoughtfully.
  • Ability to explain technical risks and controls to engineers, colleagues, and customers.
  • German is beneficial but not required.
Responsibilities
  • Coordinate penetration tests end to end by defining scope with engineering and external testing partners, supporting testing, assessing findings, and following remediation through verification.
  • Own vulnerability intake and triage by monitoring the security inbox and responsible disclosure program, assessing reported issues, and working with engineering to prioritize and resolve them.
  • Review security-sensitive designs and changes, identify weaknesses in authentication, authorization, and data isolation, and recommend practical improvements to help engineering build securely.
  • Evaluate production infrastructure and internal system protections, identify gaps, and drive improvements.
  • Review network separation, service exposure, privileged access, and permissions to ensure systems and data are accessible only where needed.
  • Assess how systems could be compromised and whether protections would prevent or detect it.
  • Own identity and device security by ensuring effective multi-factor authentication, appropriate access policies, and properly managed, encrypted, and patched devices.
  • Automate employee lifecycle processes for account provisioning, access changes, offboarding, and access reviews across Entra ID and internal tools.
  • Use scripts, integrations, and artificial intelligence tooling to automate recurring security operations and surface issues requiring attention.
  • Help answer customer security questionnaires and join customer conversations to explain security controls credibly.
  • Support ISO 27001 and SOC 2 Type II compliance work through effective controls, current evidence, and technical input into audits and risk assessments.
Desired Qualifications
  • Experience with ISO 27001, SOC 2, and customer security assessments.

About the company

L

Langdock

View
Website

Langdock is an enterprise AI platform that helps organizations securely deploy generative AI across their workforce. It is model-agnostic, giving access to multiple providers (OpenAI, Anthropic, Google, Meta) to avoid vendor lock-in, and it emphasizes security with GDPR, ISO 27001, SOC 2 Type II, and EU data hosting. The platform includes an employee chat interface, customizable AI assistants, enterprise search, and a unified API, with workflows that integrate with tools like Slack, Google Drive, and Confluence. Its goal is to help knowledge workers use AI tools productively while maintaining data security and regulatory compliance.

Company Size

51-200

Company Stage

Seed

Total Funding

$3.1M

Headquarters

Berlin, Germany

Founded

2023

Get referred to Langdock

See people who can refer or advise you

Simplify Jobs

Simplify's Take

What believers are saying

  • Langdock reached $50 million ARR by August 2026, from $1 million in October 2024.
  • September 2026 changelog added GPT-6 Astra, Gemini 3.8 Flash, and desktop apps.
  • Langdock plans a German data center and three new services before year-end 2026.

What critics are saying

  • ChatGPT Enterprise, Microsoft Copilot, and Mistral Le Chat compress Langdock's pricing power.
  • April 2026 fair-usage limits and separate workflow packages invite churn from power users.
  • OpenAI, Google, and Microsoft can bundle Langdock's features into office suites, crushing demand.

What makes Langdock unique

  • September 2026, Langdock became a German SE, sharpening its sovereignty-first enterprise pitch.
  • Langdock serves 13,000 organizations, with Merck, GetYourGuide, and Personio case studies.
  • Its model-agnostic stack spans chat, agents, workflows, Outlook, and a unified API.

Help us improve and share your feedback! Did you find this helpful?

Benefits

  • Remote Work Options
  • Hybrid Work Options
  • Flexible Work Hours
  • Paid Vacation
  • Paid Holidays
  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Wellness Program
  • Mental Health Support

Growth & Insights and Company News

Headcount

6 month growth

-1%

1 year growth

0%

2 year growth

-7%
EU-Startups
Oct 15th, 2026
Europe lures talent but struggles to keep startups: 85% of relocating scaleups head to the US

Europe attracts people with its quality of life, but it struggles to keep companies building there. About 10% of EU scaleups relocate abroad, around 85% of them to the US, and nearly 30% of unicorns moved their headquarters abroad between 2008 and 2021. The US offers a single market, deep capital and US venture funds that often require a Delaware parent company. US capital totals €930 billion, against €150 billion in the EU. Berlin-based AI startup Langdock bucked the trend by moving its parent company from the US to Germany, after customers flagged data-risk concerns. Lisbon's Unicorn Factory has drawn 82 technology companies and created more than 16,000 jobs. Estonia's e-residency scheme has generated €124.9 million in dividends for the country.

Euronews
Sep 16th, 2026
Why this fast-growing German AI start-up is moving its parent company from the US.

Why this fast-growing German AI start-up is moving its parent company from the US. Published on 16/09/2026 - 16:37 GMT+2 This audio is read by an AI voice, it may have pronunciation or prosody defects Voice by Audioboost Full accessible In a highly unusual move, fast-growing German AI start-up Langdock has moved its legal headquarters from the US to Germany as it seeks to become a "European hyperscaler". Berlin-based Langdock has reversed the usual path taken by European start-ups by moving its parent company from the US to Germany. The decision comes amid growing debate over how Europe can build its own AI infrastructure, retain promising technology companies and reduce its dependence on US cloud and AI providers. Many European start-ups establish US holding companies in an effort to make it easier to secure funding. Langdock has now defied this trend and dismantled its US holding structure and brought its parent company under European law. "Langdock has reorganised its corporate structure into a Societas Europaea (SE), registered in Germany, replacing the previous US holding-company structure," a company representative told Euronews Business. The company said the process began in early 2026 and cost several million euros. It is now complete. Founded in Berlin in 2023, Langdock is an enterprise AI platform serving about 13,000 organisations. It gives employees access to several AI models and allows companies to connect them to workplace data and applications, create AI agents and automate tasks. Langdock said creating a US-registered parent company was initially a "vital step" that helped it attract investors and benefit from the support and network of US start-up accelerator Y Combinator. However, its operations and customer data remained in Germany. Langdock has now replaced its US parent company with a European SE. The previous structure meant customers' lawyers had to check whether the US parent created any legal or data-protection risks, even though Langdock said the US company had no employees, infrastructure or access to its production systems. US laws, including the Cloud Act, have created concerns across the market that American authorities could seek access to customer data. Removing the US parent makes Langdock's European structure clearer to customers, the company said, particularly "in geopolitically uncertain times". It added that it was now large enough to meet the stricter governance requirements of an SE. "We believe Europe is a strong place to build a global technology company, and we want to contribute to its sovereignty and competitiveness," the company told Euronews Business. About 80% of Langdock is owned by founders and employees who live in the EU. The company said the new structure would not change its plans to serve customers worldwide or raise money from international investors. Langdock says its annual subscription revenue reached a rate of $50 million (€42 million) in August, up from $1 million (€870,000) in October 2024. The figure estimates how much subscription income the company would receive over a full year if its current sales continued. Langdock said its long-term ambition was to build "a sovereign, full-stack AI platform that can compete with US hyperscalers over time". It plans to launch three new services by the end of the year and use its own data centre in Germany to run open-source AI models and provide computing power. The company said it would start small and expand as customer demand grew. Despite its rapid growth, Langdock has a long way to go before it can compete with US tech giants. Its $50 million annual revenue run rate compares with the $128.7 billion (€108 billion) in revenue generated by Amazon Web Services in 2025. Langdock's decision to relocate its parent company offers a test of whether European regulation and concerns about digital sovereignty can become a competitive advantage, rather than simply a burden, for the region's AI companies.

WirtschaftsWoche
Sep 16th, 2026
Start-up moves headquarters to Germany.

Start-up moves headquarters to Germany. * home * companies * IT * Langdock: AI start-up moves headquarters to Germany. Langdock is moving its headquarters from the USA back to Germany and plans to invest in its own data center for greater digital sovereignty. 16.09.2026 - 11:50 a.m.

Handelsblatt
Sep 16th, 2026
Start-up Langdock moves its headquarters from the US to Germany.

Start-up Langdock moves its headquarters from the US to Germany. * home * technology * artificial intelligence * AI: start-up Langdock moves headquarters from the US to Germany. While other companies relocate, Langdock is converting its US parent company into a European SE - also because US law is becoming a risk. Experts see a new German unicorn. September 16, 2026 - 03:57 a.m.

Starte.ai
Aug 7th, 2026
Langdock breakdown: the wedge, the numbers, and the lesson for you.

Langdock breakdown: the wedge, the numbers, and the lesson for you. Langdock closes the gap between "we want AI" and "IT needs control" with a model-agnostic AI platform for enterprises - here's the breakdown. Langdock solves a problem almost every company is dealing with right now: employees have long since started using ChatGPT on their own, but IT has zero visibility into what data is leaking out in the process. Langdock's answer is a centralized, model-agnostic AI environment for the whole company, complete with chat, agents, workflows, and all the enterprise checkboxes procurement teams demand. That gap is exactly where the wedge lives. Somewhere between "we want to use AI" and "we can't allow just anything" sits what's reportedly turned into an estimated six-figure monthly traffic number and a solid MRR in the low-to-mid five figures. What exactly is Langdock? Langdock is a B2B platform that gives companies a centralized AI workspace that isn't locked to a single model. Instead of committing to GPT or Claude or Gemini, you get one interface where you can switch between models depending on the task, without having to manage five separate tools. The product itself is built from a handful of clear pieces: a chat interface that can run multiple AI models, custom agents for recurring tasks, a workflow builder for automation, and integrations into existing company systems. On top of that comes what actually gets enterprise deals signed: SSO, SCIM, and SAML - the standards IT departments rely on to manage access centrally. Without those three acronyms, you simply don't sell into bigger companies. What stands out to me: this isn't "just another ChatGPT wrapper." The real value sits in the governance layer on top, not in the AI itself. How did Langdock probably get started? A product like Langdock rarely comes from someone wanting to "build something with AI." It's far more likely that a team saw firsthand - inside a company or as consultants - just how chaotic AI adoption actually looks in practice: one person using ChatGPT Plus on their personal account, another pasting customer data into a tool nobody ever vetted, and IT only finding out once it's already too late. The chaos was already there. Langdock just made it visible. That fits the "boring niche" pattern pretty well: compliance and internal tool management aren't exactly what most founders dream of building. Which is exactly why there's less competition there - if you're willing to get into the weeds of SSO configs and data privacy questions instead of shipping the tenth AI photo filter. Being based in German-speaking Europe also suggests GDPR and the general wariness German companies have toward US cloud services were baked in from day one. A European provider offering EU-based data centers and processing has a trust advantage with DACH enterprises that a US tool has to work hard to earn. The wedge: where Langdock really gets in the door. Langdock's wedge is control, not creativity. Companies don't want their employees to stop using AI. They want to know who's doing what with which data. ChatGPT Enterprise solves part of that, but only for one model, and only if the whole company commits to OpenAI. The moment one team prefers working with Claude, or IT wants a European model for security reasons, things get messy. That's exactly where Langdock steps in: a layer on top that mediates between models and logs everything in one place. Positioning itself as an "independent layer" rather than "its own model" is a smart strategic move. Models constantly get better, worse, more expensive, or get shut down entirely. Anyone who locks themselves into a single model is basically building their business on someone else's roadmap. Langdock, instead, sells control over whichever model you want - which stays relevant no matter which model happens to be best at any given moment. Similar shifts from "feature" to "control layer" show up in other breakdowns on this blog too, like Getfluently, where it's also not the individual AI feature but the surrounding system that delivers the real value. The business model: how Langdock makes money. Langdock earns through tiered per-seat subscriptions - classic SaaS pricing with a clear upsell path for bigger companies. The trial tier sits at an estimated 5 euros a month, essentially a low-friction entry point so individual teams can get started without a lengthy approval process. The business tier runs around 25 euros per user per month, and enterprise customers get custom contracts tailored to seat count, integrations, and security requirements. | Tier | Target audience | Estimated price | Typical feature | | Trial | Individual employees, small teams | ~€5/month | Fast onboarding, minimal approval needed | | Business | Departments, mid-sized companies | ~€25/user/month | Workflows, agents, team management | | Enterprise | Large corporations, regulated industries | custom | SSO/SCIM/SAML, API, dedicated support | You've probably seen this pattern before in other B2B tools: a bottom-tier price that's basically no barrier at all, and a top-tier price that's entirely negotiated. The real revenue doesn't come from a flood of small trial customers - it comes from the handful of enterprise deals hammered out behind the scenes. Frequently asked. What exactly does Langdock do?+ Langdock is a B2B platform that gives companies a centralized, model-agnostic AI workspace. You get chat, custom agents, a workflow builder, and integrations, plus enterprise features like SSO, SCIM, and SAML that let IT keep control. The real value lies less in the AI itself and more in the governance layer on top. How much does Langdock cost?+ What sets Langdock apart from ChatGPT Enterprise?+ Who is Langdock built for?+ Founder, Starte.ai Founder of Starte.ai. Built a business to 125,000+ organic leads and seven-figure revenue - and now works with founders personally, deriving a strategy for their own brand from data across thousands of real projects and producing the creatives for it.