Senior Full Stack Software Engineer, GovTech & AI

Lexaru GmbH

. Develop full-stack features and fully fledged internal tools from ideation through architecture, implementation, and testing to rollout .

Posted 10/27/2026full-timeRemote • Germany, AustriaSenior💰 €4,061 per monthWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in full-stack product development, with a strong focus on TypeScript, modern frontend frameworks like Svelte or Vue, and backend technologies such as Node.js or Django. Capable of designing and integrating LLM-based applications while ensuring security, performance, and cost efficiency in production environments.

Highest-signal resume keywords

Full-Stack Product DevelopmentTypeScript ProficiencyLLM-Based Application DevelopmentNode.js or Django ExperienceRelational Database Management

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Full-Stack DevelopmentTypeScriptSvelteVueNode.jsDjangoPostgreSQLRAGTool CallingStructured Model Outputs

Soft Skills

Clear CommunicationStructured Working StyleOwnershipDecision-MakingPrioritization

Tools & Technologies

CI/CDMonitoring ToolsLogging ToolsArchitecture DocumentationError Analysis Tools

Industry Keywords

UI/UX DesignMVP DevelopmentPerformance OptimizationAdministrative ProcessesPublic Authorities

Tech Stack

Tools & technologies

DjangoJavaScriptNode.jsPostgresSvelteTypeScriptVue.js

About the role

Key responsibilities & impact

Develop full-stack features and fully fledged internal tools from ideation through architecture, implementation, and testing to rollout
Design straightforward UI/UX and carry out the necessary backend engineering
Develop rapid MVPs and mature features for production use
Design and develop LLM-based features and agentic workflows, and integrate them into products
Use prompt and context engineering, RAG, tool calling, and structured model outputs
Make architectural and model decisions and develop appropriate evaluation methods
Ensure reliable operations through guardrails, logging, and monitoring
Improve quality, runtime, and costs based on measurable results
Contribute to the platform architecture for services, data models, and security
Share responsibility for deployment, CI/CD, and monitoring
Ensure security, performance, cost efficiency, and stability in production
Work closely with the founders and customers
Translate user needs into technical solutions and clear user stories
Contribute to prioritization and make pragmatic technical decisions

Requirements

What you’ll need

Several years of experience in professional full-stack product development; four or more years is a guideline
Excellent knowledge of TypeScript and modern frontend frameworks, ideally Svelte or Vue
Excellent knowledge of modern backend technologies such as Node.js or Django
Experience with relational databases, ideally PostgreSQL, including schema design and the fundamentals of performance optimization
Hands-on experience developing and operating LLM-based applications, including RAG, tool calling, and structured model outputs
Ability to independently design and integrate AI workflows and improve them through systematic evaluation and error analysis
Structured, reliable working style and clear communication
Willingness to take ownership and contribute your own ideas
Interest in understanding administrative processes and systems used by public authorities
Ability to prioritize independently and make decisions in an early-stage environment with few established processes
Clear documentation, such as architecture notes, ADRs, and onboarding documentation
Excellent German and English language skills

Benefits

Comp & perks

Permanent employment contract
40 hours per week
25 days of annual leave
Remote-first work
Option to use offices in Garching
Professional and personal development through hands-on experience, regular feedback, and ownership of projects
Opportunities for technical specialization, increasing responsibility, or leadership roles
Travel expenses covered for in-person meetups
Bonuses available
Employee equity participation may be available