Benjamin Arand

P R O F I L E

Ten years as a full-stack developer, three of them building production AI systems. The work spans a conversational multi-agent assistant on Telegram — 300,000+ LLM calls per year, 1.5 billion tokens, with image generation, Web3 on-chain research, RAG over unstructured knowledge and full conversation history, autonomous reminders, and a personality layer giving each agent a consistent, configurable identity — and a complete agentic framework designed and shipped for Ehrenkind, a composable runtime where any team can assemble tools, knowledge, and instructions into a deployable agent via API, with deterministic call logging so every inference can be replayed against its exact seed. The framework runs on a hybrid of locally hosted models and frontier APIs; sensitive data reaches frontier models only after passing through a custom anonymisation pipeline built from scratch with Presidio and a local LLM verification pass, achieving 99.99%+ PII removal accuracy.

Thinks in products and teams — currently managing a small team working on AI. Handles the full picture from architecture to stakeholder communication. Works across German and English without switching gears.

S K I L L S

AI & LLMLangChain · LangGraph · custom tool-calling & multi-agent orchestration · multiprovider LLM routing · RAG pipelines · prompt engineering · LLM evals (LLM-as-judge, RAGAS, custom benchmarks) · LLM cost optimization · MCP, A2A, and other agent protocols · open-source model deployment (Ollama, vLLM) · FLUX / LoRA fine-tuning · PII anonymisation

BackendNode.js / TypeScript · Python · async & concurrent systems · REST & GraphQL API design · WebSockets · gRPC · NATS · Redis Streams · Temporal · event-driven & microservice architecture · job queues & async pipelines

FrontendReact · Next.js · Remix · Vue.js · Tailwind CSS · authentication & session management (OAuth2, JWT, SSO) · web security (CSP, XSS, CSRF) · SSR & SSG · state management (Zustand, Redux) · performance optimization · accessible & responsive UI

DataPostgreSQL · MongoDB · Redis · Convex · vector databases (pgvector, Pinecone) · schema design & migrations · query optimization · data pipelines & ETL · real-time data streams

InfrastructureDocker · Linux server administration · CI/CD (GitHub Actions) · cloud hosting (AWS, Azure, Render, Vercel, Railway) · observability & monitoring (Sentry, logging, alerting) · cost management & scaling strategies

Blockchain & Web3Solidity · web3.py · Solana SDK · EVM / Solana on-chain integration · wallet management

Dev toolingClaude Code with local multi-agent setup · custom MCP server integrations (GitHub, Linear, Sentry, Playwright, Convex, Render, Context7 and more) · specialized agent roles for research, planning, implementation and deployment · CLAUDE.md rule files with automated verification gates · prompt caching & context engineering · reproducible AI workflows across all projects

E X P E R I E N C E

Lead AI & Backend Engineer — Ehrenkind GmbH

Mar 2023 – Present · Remote, Germany · E-commerce, 260,000+ orders/year · sole architect of all AI tooling and backend infrastructure

Orbit — Ground-up agentic framework where any team member can compose an agent via API: attach tools, inject knowledge with multi-hop retrieval, and route tasks across frontier models (on anonymised data) and locally hosted open-source models. Every LLM call is stored with its exact seed and context for precise replay and debugging. Used daily by technology and customer care to classify requests, research order and customer data, generate summaries, and automate response workflows.
central-api — Central backend integrating 15+ services (Shopify, Amazon, ERPNext, Billbee, Zoho) at 10,000+ calls/day and 99.99% uptime. Single source of truth for all applications.
Serviceportal — Customer self-service portal (Remix / React / TypeScript) serving 500–1,000 users/month with order tracking, returns, and warranty claims — reduced support tickets by ~20%.
Designed Temporal-based job queue infrastructure (Beeq, ERPNext-Queue) processing thousands of daily jobs across rate-limited APIs with priority queuing and schema validation.

Full Stack Developer → Senior Engineer — Megatech communications GmbH

Jul 2016 – Feb 2023 · Munich, Germany · C# / .NET · Vue.js · Avaya SDK · real-time call center software for enterprise clients

Led development of a real-time web call center client (Vue.js) deployed to 200+ agents across customer organizations — integrated live with Avaya telephony.
Built internal integration services connecting Avaya infrastructure, customer databases, and business logic — core plumbing the company's products ran on.
Handled customer-facing sales and requirements gathering, bridging technical delivery and client needs. Certified vocational instructor (AEVO); designed onboarding programs and mentored apprentice developers.

P R O J E C T S

Co-Founder — Craft

Python · TypeScript · NATS · Redis Streams · Convex · PostgreSQL · 300,000+ LLM calls/year · 1.5B tokens · 250,000+ messages · two-person founding team

Full microservices architecture: NATS message bus, Redis Streams for real-time processing — built for >100 req/s throughput.
5 independent AI engines with multi-provider orchestration across all major frontier and open-source models — tool calling, streaming, and provider fallback.
Image generation pipeline: FLUX, Nano Banana, and other top-tier models with AI prompt enhancement, OCR, NSFW detection, and credit metering.
Deep on-chain integration across EVM and Solana: Solidity smart contracts, automated Python-based Solana transaction execution, real-time wallet and token analytics, automatic market analysis.
Also shipped: LoRA Tool (custom image fine-tuning UI) · AgentPay (x402 MCP giving agents a native payment layer) · TubeMCP (YouTube research MCP for agents) · multiple Telegram bots for on-chain data, alerts, and community automation

C O N S U L T I N G

Founder & Managing Director — AIService UG

2024 – Present · Frauenau, Bavaria

Founded to bring AI and digitalisation consulting to smaller companies. Clients range from local businesses taking their first steps in AI to early-stage startups. Built a full management suite for a Munich-based social startup helping people in need access housing — covering case management, document workflows, and operational tooling.

P R O F I L E

S K I L L S

E X P E R I E N C E

Lead AI & Backend Engineer — Ehrenkind GmbH

Full Stack Developer → Senior Engineer — Megatech communications GmbH

P R O J E C T S

Co-Founder — Craft

C O N S U L T I N G

Founder & Managing Director — AIService UG

S P E A K I N G

Balkans Crypto Conference 2025

E D U C A T I O N

IT Specialist in Application Development

A V A I L A B I L I T Y