ScaleTech

Scales digital platforms and AI automation

AI Engineer

AI Application EngineeringConfirmed live in the last 24 hours

Part-timeVilnius, Vilnius City Municipality, Lithuania€30 - €40 /hr

About the Job

Requirements

At least 5 years of overall software engineering experience.
At least 5 successfully delivered AI/LLM projects.
Hands-on experience with multiple LLM providers, including OpenAI, Gemini, and Anthropic, as well as open-source models.
Experience building agentic workflows for process automation.
Experience integrating LLMs into production software products, such as chatbots, copilots, or similar AI-powered features.
Strong engineering fundamentals and the ability to work independently in a fast-moving, sometimes ambiguous environment.

Responsibilities

Design, build, and deploy AI agents that automate real business processes, such as generating proposals for client tenders.
Integrate LLMs, including OpenAI, Gemini, Anthropic, and open-source models, into existing software products to enable features such as AI chatbots that act directly within client systems and data.
Identify automation opportunities and turn them into working solutions.
Choose the appropriate LLM and tooling approach for each use case, considering cost, performance, and reliability.
Own delivery end-to-end, from prototype to production.

Desired Qualifications

Experience with SaaS products, especially in supply chain, logistics, or other B2B software domains.
Familiarity with agent frameworks such as LangChain, LlamaIndex, or CrewAI.
Experience with prompt engineering or fine-tuning at scale.
Prior consulting or contracting experience.

Salary Range: 30 to 40 (Currency: EUR) (Pay period: per-hour-wage)

Scale Tech is a software development agency based in Vilnius, Lithuania. We're expanding our AI capabilities and looking for an experienced AI Engineer to join us on a contract basis. If you love turning LLMs into real, production-ready automation, not just prototypes — this could be your next project.

Contract term (B2B) — 1–4 months, full-time. Part-time can also be arranged if that suits you better.
Working method — Remote, must be based in the EU/EEA
Hourly rate — €30–40/hour, depending on experience (open to discussing higher rates for the right candidate)

What you'll do:

Design, build, and deploy AI agents that automate real business processes (e.g. generating proposals for client tenders).

Integrate LLMs — including OpenAI, Gemini, Anthropic, and open-source models — into existing software products, enabling features like AI chatbots that can act directly within a client's systems and data.

Spot automation opportunities and turn them into working solutions.

Choose the right LLM/tooling approach for each use case, weighing cost, performance, and reliability.

Own delivery end-to-end, from prototype to production.

What makes you a great fit:

5+ years of overall software engineering experience.

At least 5 successfully delivered AI/LLM projects.

Hands-on experience with multiple LLM providers (OpenAI, Gemini, Anthropic) as well as open-source models.

Experience building agentic workflows for process automation.

Experience integrating LLMs into production software products (chatbots, copilots, or similar AI-powered features).

Strong engineering fundamentals and the ability to work independently in a fast-moving, sometimes ambiguous environment.

Bonus points:

Experience with SaaS products, especially in supply chain, logistics, or other B2B software domains.

Familiarity with agent frameworks (LangChain, LlamaIndex, CrewAI, or similar).

Experience with prompt engineering or fine-tuning at scale.

Prior consulting or contracting experience

Ready to build?

Apply directly here, or send us your CV at [email protected] - we'd love to hear about the LLM projects you've shipped.

About the Company

ScaleTech

Scales digital platforms and AI automation

ScaleTech provides digital platform design and development, mobile and web apps, and enterprise solutions, plus WhatsApp AI automation to help businesses grow. Its offerings include scalable, secure digital platforms for e-commerce, content management, and CRM; high-performance mobile and web applications; and enterprise integrations such as ERP and custom software. The WhatsApp AI Solutions automate customer interactions with features like event registration, lead capture and nurturing, feedback collection, real-time order tracking, and booking and payments directly in WhatsApp. The company differentiates itself with a holistic, end-to-end digital-first approach that covers strategy, design, development, and deployment, and by combining platform, app, and integrated enterprise capabilities with AI-powered customer engagement. Its goal is to help clients transform digitally, future-proof their operations, and align technology with business objectives in a competitive market.

Company size: 51-200
Company stage: Not listed
Total funding: Not listed
Headquarters: San Francisco, CA
Founded: 2018

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