Jobs CTO

We're looking for an experienced Chief Technology Officer (CTO) to lead the technical strategy and execution of our Web3 products. You'll own the engineering organization, shape the technology roadmap, scale the team, and work closely with founders and product leadership to build secure, high-performance blockchain solutions.

This role is ideal for someone with hands-on engineering expertise, proven leadership experience, and a strong commercial background in Web3. This is a long-term opportunity, specifically open to Ukrainian professionals living abroad.

Responsibilities

• Define and execute the company's technical vision and architecture.
• Lead and grow the engineering team, including hiring, mentoring, and performance management.
• Drive the development and delivery of scalable Web3 products.
• Design secure and reliable blockchain infrastructure and smart contract architecture.
• Collaborate closely with Product, Design, and Business teams to align technical execution with business goals.
• Establish engineering best practices, development processes, and code quality standards.
• Oversee infrastructure, security, DevOps, and system scalability.
• Evaluate emerging blockchain technologies and implement innovations where appropriate.
• Manage technical risks and ensure product reliability and security.

Requirements

• Proven experience as CTO, Head of Engineering, Engineering Director or Technical Lead.
• Commercial experience in Web3, Blockchain, Crypto, or DeFi products is required.
• Strong software engineering background with modern backend technologies.
• Experience designing distributed systems and scalable architectures.
• Hands-on experience with blockchain ecosystems such as Ethereum, Solana, Polygon, Arbitrum, Base, or similar.
• Experience with smart contracts (Solidity or Rust is a strong advantage).
• Deep understanding of blockchain infrastructure, wallets, RPC nodes, consensus mechanisms, and security principles.
• Experience managing engineering teams of 10+ people.
• Strong communication and leadership skills.
• English level: Upper-Intermediate or higher.

What we offer

• Competitive salary.
• Flexible remote work.
• Opportunity to shape the technical direction of a growing Web3 company.
• Work with an experienced international team.
• Freedom to make architectural decisions.
• Professional growth and ownership.
• Paid vacation and sick leave.

🚀 About Workeron.ai

Workeron.ai is an AI product company building AI agents and digital employees for real business operations.

We do not build abstract AI demos or simple wrappers around ChatGPT.

Our goal is to create AI systems that automate real workflows in operations, analytics, support, and management.

We are looking for a hands-on CTO / Head of Engineering who still enjoys:

• coding
• architecture
• rapid product building
• experimenting with new AI tools and models

This is not a pure management role.

🌍 Format

• Fully remote
• International AI-focused environment
• Direct collaboration with founders

• Flexible schedule

   

💰 Compensation

• $8,000–10,000/month

• Equity/options package tied to milestones and contribution

   

💡 About the Role

You will help turn Workeron.ai into a scalable AI agent platform and product factory.

Your responsibilities will combine:

• technical leadership
• architecture
• hands-on engineering
• team building

• rapid product execution

   

You will work closely with:

• CEO
• Product team

• Engineering team

   

🛠 What You’ll Do

Architecture & Platform Development

• Design architecture for AI agent systems and platform infrastructure
• Define standards for code quality, deployment, monitoring, and reliability
• Select and evaluate:
  • LLM providers
  • vector databases
  • orchestration tools
  • observability stack

  • infrastructure components

     

Hands-on Engineering

• Write code together with the engineering team
• Build AI agents and MVP systems
• Rapidly iterate based on testing and customer feedback

• Improve scalability and system reliability

   

Product & AI Systems

• Work with founders to transform product hypotheses into technical solutions
• Contribute to technical product strategy

• Balance experimentation speed with production quality

   

Team & Processes

• Hire and lead a small engineering team
• Build engineering workflows and development processes
• Set up CI/CD and scalable development environments

• Support fast MVP and PoC delivery

   

📈 Expected Outcomes

First Month

• Deep understanding of product vision and hypotheses
• Delivery of multiple AI agent MVPs
• Technical groundwork for future scaling

First 3 Months

• Selection of the strongest product direction
• Scalable product architecture
• Stable deployments, monitoring, and production readiness

• Readiness for onboarding paying customers

   

✅ Requirements

• 6+ years of software engineering experience
• 2+ years as Tech Lead, Engineering Lead, or CTO
• Strong backend or fullstack engineering background
• Experience building SaaS or AI products
• Hands-on experience with:
  • LLMs
  • AI agents
  • RAG systems
  • vector databases
  • orchestration systems
• Strong system architecture skills
• Ability to move fast and ship MVPs quickly
• Experience hiring or leading engineering teams
• Ability to translate business needs into technical solutions

• English — B1+ or higher

  Ukrainian - C2

   

➕ Nice to Have

• Startup experience
• Experience building internal platforms or SDKs
• Experience with cloud infrastructure and DevOps

• Product-oriented mindset

   

🧰 Tech Stack

Python · Docker · REST API · PostgreSQL · RAG · GCP · AI/LLM APIs · Vector DBs · Microservices · DevOps · Cloud Architecture

💎 What We Offer

• Near co-founder level impact
• Real influence on product and technology decisions
• Freedom to build architecture and engineering culture
• Direct communication with founders
• Fast execution environment

• Opportunity to build AI systems from MVP to scale

   

📩 How to Apply

Please send:

• Full and updated CV
• AI engineering leadership or CTO experience
• AI/LLM product experience
• Telegram link

Data Science UA is a service company with deep expertise in AI and Data Science. Our story started in 2016 with the first Data Science UA Conference in Kyiv, and since then, we’ve built one of the largest AI communities in Europe.

About the Role:

We are looking for a Chief Technology Officer (CTO) for delivering AI, software, embedded, and hardware solutions for defense projects.

This role combines technical leadership, system architecture, project evaluation, and presales activities. The CTO will act as the primary technical authority, helping assess new opportunities, define solution concepts, evaluate project feasibility, and guide engineering teams from idea conception to field deployment.

We are particularly interested in candidates with a Defense Tech background spanning areas such as AI/ML, Computer Vision, autonomous systems, UAVs, embedded software, robotics, communications, sensing, electronic warfare, or other military-related technologies.

This role is ideal for a systems thinker and technical leader who can connect technology, operational requirements, and business needs while working closely with clients, engineering teams, and defense stakeholders.

Key Responsibilities:

• Define the company's technical strategy and R&D roadmap.
• Evaluate new business opportunities, lead technical discovery, and participate in go/no-go decisions.
• Design end-to-end defense technology solutions (sensor → compute → communications → operator/effect).
• Define system architectures and provide technical leadership across AI/ML, Computer Vision, software, embedded, and hardware domains.
• Assess technical feasibility, risks, and implementation approaches for prospective projects.
• Participate in presales activities, technical workshops, and client discussions.
• Evaluate emerging technologies and identify opportunities for their application in defense products.
• Collaborate with field teams to analyze testing results and operational feedback.
• Drive the transition from prototype to production-ready solutions.
• Build, mentor, and develop engineering teams.
• Establish engineering standards, processes, and technology selection practices.

Requirements:

• 5+ years of experience in Defense Tech, AI/ML, Computer Vision, Embedded Systems, Robotics, UAVs, Communications, Electronic Warfare, RF, Avionics, or related technical domains.
• Technical background and hands-on experience designing and integrating complex systems across software, AI/ML, embedded, hardware, and related engineering domains.
• Systems-level thinking and ability to evaluate technical architectures, implementation approaches, and project feasibility.
• Understanding of operational constraints such as latency, reliability, maintainability, and real-world deployment conditions.
• Experience taking products from concept or prototype through deployment.
• Experience managing engineering teams or leading cross-functional technical initiatives.
• Experience in client-facing technical roles, presales, consulting, or solution architecture.
• English: Advanced

Preferred Qualifications:

• Previous military service or hands-on experience working closely with military units.
• Experience building engineering or R&D organizations from scratch.
• The existing network within the Ukrainian defense ecosystem would be a plus.

Ideal Candidate:

• Think in systems, not just components.
• Combines strong technical expertise with understanding of real military needs and operational environments.
• Can confidently challenge assumptions and propose practical alternatives.
• Focused on technologies that work in the field, not only in presentations.
• Comfortable communicating with customers, military stakeholders, and engineering teams.
• Has broad technical curiosity and can quickly evaluate new technologies and domains.
• Understands how AI, software, hardware, and operational requirements come together in Defense Tech products.
• Motivated to build products from scratch and shape the company’s technical direction.

What the Company Offers:

• Participation in cutting-edge defense technology projects.
• Exposure to AI, software, embedded, and hardware products.
• Active involvement in presales, project evaluation, and technical strategy.
• Opportunity to work directly with Defense Tech innovations and emerging technologies.
• Health insurance.
• 24 days of vacation.
• Office/lab in Kyiv.
• Significant influence on technical strategy and the future development of the engineering organization.

Data Science UA is a service company with deep expertise in AI and Data Science. Our story started in 2016 with the first Data Science UA Conference in Kyiv, and since then, we’ve built one of the largest AI communities in Europe. 

About the role and the client:
We are looking for a Chief Technology Officer (CTO) for a consulting company delivering hardware and software solutions for defense projects.
The CTO will be the primary technical authority, responsible for system architecture, product viability, and engineering leadership — from idea conception to field deployment.

This role is ideal for a systems engineer and technical leader capable of designing complex end-to-end solutions and managing multi-disciplinary teams (hardware, embedded, software, AI/DSP).

In defence technology, mistakes in architecture are costly.
This role is about responsibility, systems thinking, and creating technologies that work in real operational conditions, not just look good in presentations.
Kyiv-based vacancy
 

Key Responsibilities:
- Define the company’s technical strategy and R&D directions.
- Design end-to-end systems (sensor → compute → comms → operator / effect).
- Provide architectural oversight for hardware, embedded, AI/DSP, and software teams.
- Participate in presales and technical client discussions.
- Evaluate and select new projects or solutions (go/no-go decisions).
- Collaborate with field teams to analyze real-world testing results.
- Manage the transition from prototype to working product and scalable solution.
- Build, mentor, and develop engineering teams.
- Select technologies, define architecture, and establish engineering processes.

Requirements:
- 5+ years of experience in systems engineering / embedded / robotics / avionics / radar / RF / EW / UAV / defense technology.
- Proven experience integrating hardware + embedded + software.
- Strong systems-level thinking and experience designing complex technical solutions.
- Understanding of field constraints: latency, reliability, maintainability, and real-world operational conditions.
- Track record of taking products from prototype → MVP → deployment/production.
- Experience managing engineering teams.
- Experience in client-facing technical roles / presales / solution architecture.
- English: Advanced.

Preferred Qualifications:
- Experience in one or more areas: UAV / RF / EW / radar / sensing / avionics / robotics.
- Ex-military engineer or experience working closely with operational military units.
- Experience with serial production or scaling complex systems.
- Proven ability to build R&D or engineering departments from scratch.
- Background in miltech / defence / robotics / telecom hardware companies.

Ideal Candidate:
- Thinks in systems, not just components.
- Can confidently say “this won’t work” and propose alternatives.
- Focused on results in the field, not presentations.
- Capable of making technical decisions under uncertainty.
- Strong leadership in client and engineering team interactions.
- Motivated to build products from scratch and shape the company’s technical direction.

What the Company Offers:
- Participation in defence technology projects.
- Exposure to hardware + embedded + software products.
- Active involvement in presales and technical strategy.
- Health insurance.
- 24 days of vacation.
- Office/lab in Kyiv.
- Opportunity to influence technical strategy and build the engineering organization.

Ми — українська SEO-агенція (IGaming) з 5-річним досвідом роботи, яка спеціалізується на висококонкурентних нішах і працює з різними ГЕО. Наша команда є основою успіху компанії, адже ми віримо в силу якісної команди та створення умов для самореалізації. 

Шукаємо сильного технічного керівника, який зможе взяти відповідальність за відділ розробки, технічну архітектуру, процеси, якість, релізи та стабільність продуктів.

Нам потрібна не просто людина, яка добре пише код. Ми шукаємо технічного лідера, який вміє будувати систему: команда, процеси, delivery, архітектура, контроль ризиків, комунікація з бізнесом.

Основні задачі:

Управління командою розробки: постановка задач, розподіл навантаження, контроль виконання та розвиток команди.

• Побудова та оптимізація процесів Software Development Lifecycle (SDLC).
• Аналіз поточної архітектури, виявлення технічних ризиків і управління технічним боргом.
• Формування технічної стратегії та roadmap розвитку продуктів.
• Контроль якості коду, процесів Code Review, тестування та релізів.
• Організація стабільного процесу delivery та впровадження технічних стандартів.
• Контроль DevOps-напряму, інфраструктури та критичних сервісів.
• Забезпечення базових процесів інформаційної безпеки та управління доступами.
• Взаємодія з бізнесом: оцінка технічних рішень, строків, ризиків і пріоритетів.
• Участь у наймі, адаптації та розвитку технічної команди.

Наші очікування:

• Від 6 років комерційного досвіду у Software Development.
• Від 3 років досвіду на позиції CTO, Head of Engineering, Technical Director.
• Практичний досвід управління командою розробки від 10+ спеціалістів.
• Досвід побудови або масштабування процесів розробки.
• Глибоке розуміння веб-архітектури, API, баз даних та інтеграцій.
• Досвід роботи з Git, Code Review та branching strategy.
• Практичний досвід роботи з Linux, Docker, CI/CD, staging, production, monitoring, logging та backup-процесами.
• Досвід прийняття архітектурних рішень, управління технічним боргом та оцінки технічних ризиків.
• Базове розуміння інформаційної безпеки та security best practices.
• Досвід планування ресурсів, оцінки задач, строків і контролю delivery.
• Вміння будувати ефективну взаємодію між бізнесом і технічною командою.

Буде перевагою:

• Досвід роботи з high-load або traffic-heavy продуктами.
• Досвід у сферах Affiliate Marketing, iGaming, SEO або інших digital-продуктах.
• Практичний досвід роботи з Cloudflare, CDN, WAF та Anti-Bot-рішеннями.
• Досвід роботи з WordPress, custom CMS, CRM або внутрішніми корпоративними системами.
• Досвід побудови Engineering-команди після масштабування або реструктуризації.
• Досвід впровадження QA-процесів і технічної документації.
• Досвід роботи з розподіленими командами.

Ми пропонуємо:

• Формат - гібрид офіс Київ, м.Васильківська.
• Можливість побудувати сильний Engineering-напрям.
• Роботу в команді, де технічні рішення мають реальний вплив на бізнес.
• Можливість формувати команду та технічну культуру компанії.
• Оплачувану відпустку та лікарняні.
• Професійний розвиток, конференції, тренінги.

Надсилай резюме і ми обов'язково з тобою сконтактуємо! 

Dataforest is looking for a CTO for an outsourcing company, who can own the technical direction across multiple client projects.

This role is about architecture, technical decision-making, and leadership — working closely with delivery, presales, and clients to design scalable, reliable solutions.

You’ll influence technology choices, shape engineering standards, support presale activities, and help teams deliver high-quality backend and data-driven systems, with optional involvement in AI / GenAI initiatives.

Technical stack (in company):
Backend: Python, Django, Django REST Framework, Fast API, Celery
Frontend: React, React Native, Next.js
Databases: PostgreSQL, MySQL; understanding of NoSQL
Data Engineering: SQL, ETL/ELT pipelines, data modeling, DWH concepts
Data Tools: Airflow / Prefect / similar orchestration tools
Cloud & DevOps: AWS, Docker, CI/CD, Azure/GCP -optional
APIs & Integration: REST, async processing, message queues (Kafka / RabbitMQ — plus)
Payment system: Stripe, Shopify, Recurly, Paypal or Braintree
AI & GenAI: LLMs (GPT, OpenAI API or similar), LangChain, RAG - optional

Requirements:
4+ years of experience as a Head of engineering/ VP of Engineering/ CTO;
8+ years of experience with Python (Backend or Data);
Strong understanding of software development processes in outsourcing companies ;
Strong understanding of how to run and manage a large number of projects;
Experience with AI-DLC process;
Ability to understand and translate business goals into technical solutions;
Experience with pre-sales activities;
Experience working in an outsourcing company;
Experience managing a team with 100 + employees- optional;
English level: Advanced or higher

Responsibilities:
Own and drive the technical vision and architecture
Lead and scale the engineering team (up to 50 FTE)
Drive technical innovation, tool selection, and best practices
Take full ownership of the technical direction and execution of the entire project, ensuring alignment with business goals and successful delivery
Participate in high-level client and partner meetings as a technology representative

We Offer:
Great networking opportunities with international clients, challenging tasks;
Building interesting projects from scratch using new technologies;
Personal and professional development opportunities;
Competitive salary nominated in USD;
Paid vacation and sick leaves;
Flexible work schedule;
Friendly working environment with minimal hierarchy;
Team building activities, corporate events.