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United Tech

Designs global mobile and web apps

Head of AI

Natural Language Processing & LLMsConfirmed live in the last 24 hours
Full-timeKyiv, UkraineNo salary listed

About the Job

Requirements

  • At least 5 years of software development experience; candidates with less experience may be considered if they have strong relevant expertise.
  • At least 2 years of hands-on experience building and deploying large language model-based solutions in production, including AI agents, integrations, and generative features.
  • Experience developing internal tools and AI solutions actively used by other teams.
  • Ability to evaluate the economics of AI initiatives before development, including expected business impact, development costs, and inference costs.
  • Experience measuring the impact of implemented solutions, defining baselines, choosing measurement methods, and separating results from external factors.
  • Solid understanding of the software development lifecycle, including estimation, code reviews, and release management.
  • Understanding of product metrics such as conversion, retention, average revenue per user, and unit economics.
  • Upper-Intermediate (B2) English or higher.
  • Experience designing and operating multi-agent systems in production, including orchestration, autonomy boundaries, failure handling, and human-in-the-loop workflows.
  • Hands-on experience building custom Model Context Protocol servers, not just integrating existing ones.
  • Advanced Claude Code expertise, including custom skills, commands, subagents, and hooks.
  • Strong context engineering skills, including determining what belongs in the context window, what should be handled through retrieval-augmented generation, and what should be exposed as a tool.
  • Experience with evaluation frameworks, including offline evaluation datasets, large language model-as-a-judge, and detecting model performance degradation after updates.
  • Understanding of inference economics and optimization techniques, including caching, batching, model selection, and cost per unit.
  • Knowledge of AI security policies and practices, including prompt injection protection, data and secret leakage prevention, and agent permission management.
  • Familiarity with DORA and SPACE engineering metrics.

Responsibilities

  • Define and drive the company's AI strategy, turning business opportunities into a structured roadmap of AI initiatives.
  • Identify, evaluate, and prioritize AI use cases across product development and internal business processes.
  • Lead the design and implementation of production-ready large language model solutions, including AI agents, multi-agent systems, and generative features.
  • Build and scale internal AI tools that improve engineering productivity and are actively adopted by other teams.
  • Evaluate the business case for AI initiatives before development, estimating expected impact, development costs, and inference expenses.
  • Establish measurement frameworks to assess the actual impact of AI solutions, define baselines, and distinguish real improvements from external factors.
  • Introduce engineering standards and best practices for AI development, including architecture, evaluation, security, and reliability.
  • Work closely with engineering and product teams to integrate AI into existing workflows, development processes, and products.

Desired Qualifications

  • At least 2 years of experience in a Tech Lead or Staff Engineer role.
  • Experience implementing retrieval-augmented generation solutions for codebases or technical documentation.
  • Claude Certified Architect – Professional (CCAR-P) or Claude Certified Developer – Foundations (CCDV-F) certification.

About the Company

United Tech

Designs global mobile and web apps

United Tech builds and maintains multiple mobile and web apps for a social networking audience. The company designs and ships six products that connect people, with features that lead to millions of users and tens of millions of matches each month, across the USA, Canada, Latin America, Europe, and the Middle East. Its apps work by letting users sign in, interact, and discover and connect with others through messaging, profiles, and matching mechanisms, all delivered through mobile and web interfaces. What sets United Tech apart is its large, globally distributed team (250+ specialists across 13 countries and 3 continents) and its remote-first operations, enabling fast growth and consistent product improvement. The company aims to shape the future of the social networking industry by expanding its user base, improving the user experience, and reaching top market positions with scalable, user-centered mobile and web apps.

Company size
201-500
Company stage
Not listed
Total funding
Not listed
Headquarters
Kyiv, Ukraine
Founded
2016

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