--- title: 'Founding Lead Software Engineer - Backend at Agenta AI' canonical: 'https://feeny.ai/job/founding-lead-software-engineer-backend-agenta-ai-berlin-wj8evz6z7ze3' type: 'job' last_seen: '2026-10-17' --- # Founding Lead Software Engineer - Backend at Agenta AI - **Company:** Agenta AI - **Location:** Berlin, Germany - **Employment:** full-time - **Work type:** hybrid - **Posted:** 2024-05-05 - **Last confirmed live:** 2026-10-17 - **Apply:** https://jobs.gem.com/agenta-ai/am9icG9zdDphjNHDHEklMNbg8BVZJnVO ## Job description About Us: Agenta is an open-source LLM developer platform that builds AI applications powered by Large Language Models (LLMs). We streamline each step of the development lifecycle, enabling teams to develop reliable LLM-powered apps more quickly. Our product equips teams with necessary tools for collaboration and building reliable LLM applications: prompt management, evaluation and testing, and observability and monitoring. Visit our GitHub repository: https://github.com/Agenta-AI/agenta About the Role: As our fourth engineering hire, you will have full ownership over major product features. You will play a significant role in shaping our engineering team's culture and work closely with the founders. Our Stack: Our backend uses Python+FastAPI, with MongoDB (and potentially Clickhouse) for our database. We use NextJS+React for our frontend and manage deployments with Kubernetes and Docker Compose for management. Our stack primarily runs on AWS using Terraform. You can check out our code at https://github.com/Agenta-AI/agenta Why Join Us: - Your work will significantly impact our customers. - You will help build the company and product's foundation. - There are massive growth opportunities, not only technically but also professionally. - Public work exposure through contributions and collaborations on open-source projects. Sample Projects for the First Few Months: - Designing a scalable observability architecture for tracing LLM calls and integrating it with OTel. - Optimizing and enhancing the latency of our observability dashboard for analytics. - Improving the design of our SDK for prompt management. About You: - You have 5+ years of experience in software development and broad knowledge in various technologies (AWS, CI/CD, Kubernetes…). - Python is your second language - You're a 10x Engineer, considered a top engineer in your previous roles. - You possess excellent communication skills, both written and spoken. Bonus Points: - Experience in founding a startup or working in an early-stage startup. - Experience in ML and building LLM applications. - DevOps or infrastructure experience. - Some frontend development knowledge (React, NextJS). Our Company Culture Hard Work Makes a Difference: - While working extensive hours doesn't guarantee success, working too few can lead to failure. We value our work ethic and believe it makes a significant difference. Ownership: - Every engineer at Agenta plays both the role of a project manager and a developer. This encompasses designing features, interacting with customers, overseeing deployment, and managing bug reports. What We Offer: - Opportunity to work on a challenging problem in a highly competitive market. - A smart and talented team. - Ownership and rapid growth opportunities. - Competitive salary and significant equity in the company Interested? Please contact us on careers@agenta.ai ## About Agenta AI ## Company Overview - **One-liner**: Agenta is an open-source platform for building, evaluating, and monitoring production-grade LLM applications and AI agents. - **Entity Type**: Private (Early Stage VC / Seed Stage) - **Headquarters**: Berlin, Germany (Rudi-Dutschke-Straße 23, 10969 Berlin) - **Founded**: 2023 - **Founders**: Mahmoud Mabrouk (Co-Founder), Juan Pablo Vega (CTO) ## Core Business - **Primary industry**: LLMOps (Large Language Model Operations) / Developer Infrastructure / AI - **Target customers**: B2B — developers, AI engineers, product teams, and enterprises building LLM-powered applications - **Mission or purpose**: To provide the open-source workspace for AI agents, enabling teams to build, iterate, evaluate, and deploy LLM applications efficiently and collaboratively. ## Products & Services - **Agenta Platform (Open-Source)**: An all-in-one LLMOps workspace that includes a prompt playground, prompt management and versioning, LLM evaluation and testing, human annotation queues, LLM observability and tracing, and agent-building capabilities. Supports integration with Langchain, LlamaIndex, and all major LLM providers (OpenAI, Gemini, Claude, etc.). - **Agenta Cloud**: Managed cloud version of the platform with enterprise features including SSO (OIDC providers like Okta, Azure AD, Auth0, Google Workspace), domain verification, and self-hosting options. - **Agent Templates**: Pre-built agent templates for engineering, support, sales, knowledge, and operations use cases. - **Enterprise Features**: SSO, domain verification, role-based access control, projects for organizing multiple AI products, and self-hosting on customer infrastructure. ## Market Standing - **Valuation/Market Cap**: Not publicly disclosed - **Key Metric**: Total funding of ~$1.2M USD - **Funding History**: - Pre-Seed Round (June 2023): $109,555 — led by Antler - Seed Round (June 2024): $1.1M — led by InReach Ventures - Additional support from Antler Germany, Antler Nigeria, BEYOND (Copenhagen), and AI NATION. - **Notable Investors/Partners**: InReach Ventures (lead), Antler, BEYOND, AI NATION - **Growth Signals**: - GitHub repository (Agenta-AI/agenta) has 4,216 stars and 122 followers, indicating strong open-source community traction. - 100+ open-source contributors contributing to the project. - Distributed team across 5 countries (Germany, France, Malta, Bangladesh, Pakistan). - Consistent monthly product shipping: annotation queues, webhooks/GitHub automations, 150+ tool integrations, PDF support, chat sessions, projects, and provider built-in tools all launched in the past year. - Headcount grew ~11% YoY to approximately 5-9 employees. ## Competitive Advantages - **Open-source with enterprise features**: MIT-licensed codebase that can be self-hosted, providing no lock-in while still offering a managed cloud tier. - **Full lifecycle coverage**: Unlike point solutions, Agenta covers the entire LLM app lifecycle — prompt engineering, evaluation, observability, and agent building — in one platform. - **Multi-provider support**: Works seamlessly with OpenAI, Gemini, Claude, and all major LLM providers, as well as frameworks like Langchain and LlamaIndex. - **Versioning and traceability**: Prompts, test sets, and agent configurations are versioned like code, with full run tracing and cost tracking. - **Human-in-the-loop**: Consequential actions require human approval, making the platform suitable for production enterprise use cases. ## Strategic Focus - **Building the open-source standard for AI agents**: Agenta is positioning itself as the "workspace for agents," moving beyond simple prompt management into full agent-building, deployment, and monitoring. - **Enterprise adoption**: Recent addition of SSO, domain verification, and projects indicates a push to serve larger organizations. - **Community growth**: Active recruitment of open-source contributors across docs, tutorials, design, and code. - **Integration ecosystem**: Rapidly expanding tool integrations (150+ tools including Gmail, Slack, Notion, Google Sheets) to make agents more useful out of the box. ## Why Work Here - **Remote-first culture**: Team is distributed across 5 countries (Germany, France, Malta, Bangladesh, Pakistan), suggesting a flexible, async-first work environment. - **High-impact, small team**: With only 5-9 employees, you'll have outsized ownership and influence over product direction. - **Cutting-edge domain**: Work at the forefront of LLMs, agents, and AI infrastructure — one of the fastest-moving areas in tech. - **Open-source community**: Opportunity to engage with and grow a community of 100+ contributors and thousands of users. - **Berlin headquarters**: Based in Berlin's Betahaus coworking space, a hub for European tech startups. - **Technical team**: 30% of the team is in technical roles; the CTO (Juan Pablo Vega) is actively building. - **Recent product velocity**: The team ships frequently and visibly — a strong signal of engineering culture and execution focus. ## Sources 1. [agenta.ai](https://agenta.ai) 2. [LinkedIn](https://linkedin.com/company/agenta-ai) 3. [GitHub](https://github.com/agenta-ai) 4. [CB Insights](https://www.cbinsights.com/company/agenta) 5. [PitchBook](https://pitchbook.com/profiles/company/530008-57)