Jobs at Djinni

We are looking for a Software Engineer with strong backend expertise to strengthen our engineering team at a successful web project from the USA.

As a Software Engineer, you will contribute to building and enhancing the platform within a collaborative engineering team. While the current stack includes Angular and Node.js, the strategic goal is to expand backend capabilities and strengthen collaboration with engineering and ETL teams.

Depending on project priorities, you may initially focus on Angular/Node.js features, while gradually contributing more to backend services and integrations, where .NET/C# experience will be valuable. You should be comfortable working across the stack when needed.

Our ideal candidate:

• Is comfortable working across both frontend and backend when needed
• Brings strong backend engineering experience
• Can help increase the technical seniority of the team
• Is proactive and capable of contributing to technical direction and system design
• Demonstrates strong ownership and problem-solving skills
• Is collaborative, comfortable working in ambiguous environments, able to mentor others, and raise the overall technical maturity of the team

Requirements

Must have

• 5+ years of professional software development experience.
• Strong experience in backend development.
• Hands-on experience with Node.js and Angular.
• Previous or current experience with .NET / C#.
• Experience designing and implementing backend services or APIs.
• Strong problem-solving skills and the ability to work with complex systems.
• Upper-Intermediate English (B2+) or higher.
• Proactive mindset and ability to take ownership of technical solutions.

Will be a plus

• Experience with AWS or other cloud platforms
• Experience working with healthcare systems or regulated environments
• Experience with SQL and/or NoSQL databases (e.g., MySQL, MongoDB)
• Mentorship or technical leadership experience

Responsibilities

• Develop and maintain features using Angular and Node.js (Express).
• Contribute to backend services and system architecture where applicable.
• Strengthen the team's backend expertise and engineering maturity.
• Collaborate with engineering and ETL teams on integrations and data-related workflows.
• Participate in architecture discussions, code reviews, and technical decision-making.
• Identify opportunities to improve system scalability, reliability, and maintainability.
• Share knowledge and support other engineers when needed.

About Project

Our client is a Software company from the USA.

Product

This platform is dedicated to ensuring payment integrity for health payers. Our project focuses on creating and implementing cutting-edge technology solutions to tackle current and future challenges in the healthcare industry for health plans. By bringing together payers, providers, and business partners on one technology platform, we aim to facilitate transparent communication and support collaboration.

Stage

Active phase of development

Project team

Existing team on the client side. We work with the US team (Eastern and Central time zones) — around 10 people. Our team is 17 people (9 MEAN stack developers, 8 QA, 1 PM)

Project Technologies

MEAN (MongoDB, Express. js, Angular and Node.js)

Work schedule

Full-time working day (flexible hours), possibility to work remotely or visit our offices in Lviv, Kyiv or Krakow.

Interview Stages

1-st stage — Call with Recruiter (30 minutes)
2-nd stage — Interview with our Senior Engineer (1 hour)
3-rd stage — Client interview

We are seeking a talented Frontend Engineer with over 5 years of professional experience to join our dynamic team.

The role is based in the Kyiv, and we expect you to work fulltime in office.

You will be responsible for building sleek, responsive, and user-friendly interfaces to enable real-time control and monitoring of robotic swarms and sensor systems. Your work will directly contribute to the usability and efficiency of our cutting-edge robotics solutions.

What is your Day to Day Mission:

• Design, develop, and optimize frontend applications for controlling and visualizing robotic swarms and sensor data.
• Collaborate with backend engineers to integrate APIs and ensure seamless data flow between frontend and backend systems.
• Build intuitive, performant, and responsive user interfaces using modern frontend frameworks such as React or comparable web component frameworks.
• Work closely with UX/UI designers to translate designs into functional applications.
• Ensure code quality, maintainability, and scalability through clean coding practices and code reviews.
• Troubleshoot and optimize frontend performance for real-time applications.
   

What you bring to the team:
 

• Completed a technical university or a comparable background with a finished degree
• 5+ years of professional experience in frontend development
• Proficiency in TypeScript and web component frameworks
• Strong understanding of modern web development tools, concepts, and practices.
• Basic knowledge of backend systems and API integration.
• Experience with custom web based rendering engines
• Familiarity with RESTful APIs, WebSockets, and data visualization tools.
• Ability to write clean, efficient, and well-documented code.
• Excellent problem-solving skills and a passion for building user-friendly applications
• Communication in English is a matter of course for you.

Nice-to-Have:

• Experience with robotics, sensor data visualization, or real-time control systems.
• Knowledge of state management libraries (e.g., Redux, MobX) and frontend build tools.
• Familiarity with backend technologies such as Nodejs or similar.
• Understanding of testing frameworks and tools for front-end development.
   
• Why Quantum-Systems:

• We Stand with Ukraine!
• We believe in the power of combined efforts: straightforward tech expertise paired with a customer-centric focus.
• We are industry pioneers who are ambitious, bold, and visionary.
• We push limits, think outside the box, and strive for technological excellence to shape the future of aerial data.
• We promise to be your runway for individual and professional growth.

We are looking for an experienced Backend Engineer to join a well-established development team working on large-scale event-driven systems.

Our client is an integrated shipping services company that has established itself as an independent carrier with a fresh and innovative approach to global logistics. The company operates a smart and efficient worldwide network, delivering reliable shipping services and ensuring stable operations for customers across the globe.

In this role, you will design and build event-driven solutions using Kafka and related technologies, focusing on stream processing applications, data pipelines, and monitoring solutions built with the ELK stack.

Responsibilities:

• Design and develop event-driven architectures using Apache Kafka and Kafka Streams;
• Build and maintain stream processing applications and data pipelines;
• Design and implement ELK pipelines, indexes, dashboards, and alerts;
• Lead architecture discussions and contribute to the design of Kafka-based event streaming systems;
• Configure Kafka connectors and manage Kafka topics;
• Develop scalable event-based processing applications according to architecture and design specifications;
• Support development and QA teams throughout the software development lifecycle;

• Contribute to monitoring, observability, and reliability of streaming platforms.

   

Requirements:

• 4+ years of experience building Kafka-based applications;
  • Strong experience with Kafka ecosystem components:
  • Kafka Streams (including Processor API)
  • Kafka Connect
  • Schema Registry
• 4+ years of experience with Java and Spring, implementing Kafka Streams applications;
• Hands-on experience with the ELK stack (Elasticsearch, Logstash, Kibana) for monitoring and observability;
• Experience with Logstash Configuration Language (LCL) for configuring pipelines (inputs, filters, outputs);
• Solid knowledge of SQL and Oracle PL/SQL, including query optimization;
• Experience working with REST APIs;
• Experience using Kafka CLI tools and REST APIs for managing Kafka resources;
• Experience working in Linux/Unix environments;
• Experience with IntelliJ IDEA;

• Experience contributing to DevOps processes for Kafka and ELK.

   

Nice to Have:

• Experience managing and maintaining ELK servers;
• Experience with Confluent Kafka Cloud;
• Experience with Python;

• Exposure to AI/ML-related projects.

   

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

We are looking for a strategic and hands-on Senior Product Manager who will own the development, optimization, and scalability of our Localization & Translation services portfolio.

This role combines product ownership, operational excellence, and team leadership, including direct leadership of two localization and translation teams.

The ideal candidate understands language services as a product, can build scalable processes, and align delivery, sales, and customer expectations.

Our client is an international product-based IT company specializing in the iGaming industry.

Founded in 2014, the company has been successfully operating on the market for more than 11 years, bringing together a team of 390+ professionals. Starting as a leader in the CIS region, the company is now actively expanding on a global scale.

We are currently looking for a Senior Product manager

📋 Key responsibilities and your contribution:

• Act as a product manager on the self-written platform working with a variety of internal services
• Lead the initiative team focused on the multibrand direction, working along with project manager and business owner to ensure alignment with the business goals
• Work on enhancing the current functionality of internal admin panels
• Play a leading role integrating 3rd party solutions to extend the platform offerings
• Embrace accountability for decisions success in your initiative team. Set standards for ownership within the team
• Create new features that would make the platform competitive on the market
• Work closely with stakeholders, design and tech leads to ensure consistent delivery and stable work of team's services
  Integrate effort, risk, and maintenance cost into roadmap planning. Communicate trade-offs
• Interpret product and user data to identify patterns, generate insights, and recommend actionable next steps
• Drive a structured discovery process and translate insights into prioritized product goals that deliver meaningful customer and business value
• Collaborate with Research team to define success metrics for experiments, frame hypotheses, and incorporate insights into planning
• Optimize initiative processes to improve delivery, reduce risk, and increase velocity. Identify bottlenecks and resolve them cross-functionally
   

📚 Your qualifications:

• Experience: 4+ years in iGaming (B2B platform preferably)
• Experience working with JIRA, Tableau (or similar)
• Strong ability to define and communicate product requirements across multiple cross-functional teams
• Proficiency in making decisions based on metrics and/or market insights
• Confidence delivering uncomfortable truth to C-lvl management
• Strong communication skills
• Solid organizational skills being able to work independently aligning with the overall business goals
• Optional: experience working with Figma

Benefits:

⭐ Days of recovery: 20 paid vacation day per year and unlimited sick leave days.
⭐ Health: corporate medical insurance, a company psychologist and a Cafeteria of Benefits for personal wellness choices.
⭐ Education: a variety of foreign languages course for you to choose from. Also we are open for your development and you can choose different courses /training for improving your skills.
⭐ Compensation: additional benefits that can be used according to company policy, e.g. paid business trips, international conference opportunities, lunch perks at our offices etc.
⭐ Work Environment: Our preference is a hybrid format based in our Portugal office, however we remain flexible and are open to discussing other European locations for the right candidate.

Your expertise:

• Experience with financial KPIs, including profit and loss (P&L) statements
• Experience in forecasting, performing what-if analyses, or building statistical models
• At least 3 years of experience in analytics or a related field
• Proficiency with Microsoft Excel or similar analytical tools
• Familiarity with SQL and business intelligence (BI) tools such as Tableau, Power BI, or QlikView
• Strong analytical skills with a proven ability to extract actionable insights from data
• Experience with Python or R for analytics and data collection (preferred, but not required)
• Upper-intermediate English proficiency
   

What’s in it for you? 

• Opportunity to deal with top-notch technologies and approaches in a world-leader product company with millions of customers
• Opportunity to make a difference for online privacy, freedom of speech, and net neutrality
• Decent market rate compensation depending on experience and skills
• Developed corporate culture: no micromanagement, culture based on principles of truth, trust, and transparency
• Support of personal and professional development
  • coverage of costs of external trainings, conferences, professional literature
  • support of experienced colleagues
  • in-house events and trainings
  • regular knowledge sharing in teams
  • English classes and speaking clubs
• Life-balance support
  • 25 working days of vacation
  • 5 days of paid sick leave per year without providing a medical certificate (no limitation on sick leaves with medical confirmation)
  • generous maternity / paternity leave program
• Professionally strong environment, friendly and open atmosphere, ability to influence the product development and recognition for it
   

You will be involved into:

• Identify sales and growth opportunities by analyzing financial data and key product metrics, deliver insights into shifting trends
• Develop and maintain robust financial reports and dashboards using BI tools, ensure accuracy and relevance for stakeholders
• Create accountability within the company by developing appropriate metrics and introducing insights that motivate teams to achieve broader targets
• Collaborate with cross-functional teams to contribute to the budgeting and forecasting processes, provide analytical support, and identify areas for improvement
• Translate complex financial data into actionable insights, make recommendations in order to optimize business processes and achieve financial goals
• Conduct ad-hoc financial analysis as required, address specific business questions, and provide timely, accurate information
   

• Requirements:

  - 3+ years of experience as a PR Manager / PR Specialist
  - Excellent networking and relationship-building abilities
  - Experience with press releases and PR content
  - Proven track record of securing media placements and speaking opportunities
  - Understanding of digital marketing and agency environments
  - English level: Upper-Intermediate or higher
  
   

• Will be plus:

  - Knowledge of iGaming, Fintech, IT, or Web3
  - Experience working with PR teams and media outlets
  - Established relationships with key industry media
  - Experience with influencers
  - Experience with PR monitoring tools

• Soft Skills:

  - Ability to work independently in a remote setup
  - Proactive and result-oriented mindset
  - Strong structural thinking
  - Ability to work closely with speakers
  - Clear communication and strong networking skills
  - Responsibility and time management
  - Openness to feedback and revisions

• Responsibilities:

  - Develop and execute a comprehensive PR & communications strategy aligned with business goals
  - Build and maintain strong relationships with media, conference organizers, partners, and industry communities
  - Pitch and secure speaking slots at conferences, podcasts, webinars, and interviews
  - Initiate and manage media coverage, features, and thought-leadership placements
  - Own external communications and brand messaging consistency across all channels
  - Prepare and plan press releases, expert comments, articles
  - Collaborate closely with marketing, SMM, content, design teams
  - Crisis management: monitor public feedback and provide professional responses to negative comments
  - Manage PR performance tracking and reporting
   

• Technical Stack:

  - Figma, PowerPoint, or Keynote (working with designers)
  - PR monitoring tools (Mention, Medialogia, Brand Watch etc)
  - ChatGPT and other AI tools (for research and drafts)
  - Project management tools (Jira, ClickUp, or similar)
  
  Our benefits to you:

• - An exciting and challenging job in a fast-growing business groups, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and more
  - Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed
  Beautiful offices in Warsaw, Limassol, Kyiv, Almaty, Yerevan — work remotely or on-site with comfort and enjoy the opportunity to build a network of connections with professionals day by day
  - Modern corporate equipment based on macOS or Windows and additional equipment are provided
  - Paid vacations, sick leave, personal events days, days off
  -️ Corporate health insurance program for your well-being
  - Referral program — enjoy cooperation with your colleagues and get the bonus
  - Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences
  Rewards program for mentoring and coaching colleagues
  - Free internal English courses
  - Yoga classes to help you stay active and energized
  - In-house Travel Service
  - Multiple internal activities: online platform for employees with quests, gamification, presents and news, RedCore clubs for movie / book / pets lovers, special office days dedicated to holidays
  - Corporate events, team buildings

About the Company

Binaryx is a Web3 platform for tokenized real-world assets (RWA), enabling fractional ownership of international real estate. 37+ properties tokenized, 2,100+ co-owners, presence across Bali, Montenegro, and Turkey. Blockchain layer built on Polygon, backend hosted on Google Cloud.

What You'll Do

• Develop new platform features end-to-end (frontend + backend)
• Build and ship a secondary market, new product pages, and checkout flow
• Improve and stabilize existing functionality
• Collaborate with product and engineering teams on technical decisions

This is a hands-on development role. Primary focus - writing code and shipping features, not managing people. DevOps is handled separately.

Roadmap (Next 6 Months)

• Stabilization of existing features
• Secondary market (new product line)
• New product page
• Checkout flow rebuild

Tech Stack

Frontend: React, Next.js, TypeScript

Backend: Node.js (Nest.js), PostgreSQL

Blockchain: Polygon, Solidity (smart contracts)

APIs: REST

Infrastructure: Google Cloud

Requirements

Must have:

• Commercial experience with React + Next.js
• Nest.js experience
• Strong JavaScript / TypeScript
• Backend experience with PostgreSQL
• Understanding of Web3 architecture and blockchain ecosystems
• Basic understanding of Solidity and smart contracts
• Experience with REST APIs

Nice to have:

• Prior work on RWA / DeFi / tokenization platforms
• Experience building marketplaces or fintech products

Looking for a Backend Engineer (Python) for an Israeli fintech / regtech company that develops platforms for digital identity management, customer onboarding, and regulatory compliance for financial institutions and enterprises.

Remote, full-time

Working Schedule: 10.30-19.00 Kyiv time

Requirements:

• 3+ years of experience in backend development using Python.
• Strong experience with FastAPI or similar Python frameworks.
• Experience designing and implementing RESTful APIs.
• Solid knowledge of MySQL and MongoDB.
• Familiarity with authentication and authorisation standards (OAuth, JWT).
• Experience writing unit and integration tests.
• English: spoken

Responsibilities:

• Design, develop, and maintain scalable backend services using Python and modern frameworks such as FastAPI.
• Build reliable and high-performance components that support core business functionality.
• Develop and maintain RESTful APIs.
• Implement secure authentication and authorization mechanisms (e.g., OAuth, JWT).
• Ensure API performance, scalability, and security.
• Design and manage database schemas and data models.
• Work with relational databases (MySQL) and NoSQL databases (MongoDB) to support application requirements.
• Write unit and integration tests to ensure application stability and reliability.
• Maintain clean, scalable, and well-documented code following development best practices

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 hands-on Sr. Machine Learning / Computer Vision Engineer with strong practical experience in designing, training, evaluating, and improving vision systems for real-world applications. The ideal candidate combines solid theoretical ML/CV fundamentals with an engineering mindset and is comfortable taking ownership of the full pipeline, from data preparation and experimentation to model optimization and deployment.

Responsibilities:
- Design, train, evaluate, and improve machine learning and computer vision models for real-world production use cases
- Build and maintain end-to-end ML pipelines, including data collection support, preprocessing, feature engineering, training, validation, and inference
- Develop solutions across both computer vision and machine learning tasks depending on business needs
- Perform error analysis, diagnose model weaknesses, and drive improvements in accuracy, robustness, and reliability
- Select and justify appropriate methods and model architectures based on dataset characteristics, product constraints, and deployment requirements
- Work with challenging real-world data, including noisy, limited, imbalanced, or weakly labeled datasets
- Collaborate with engineering and product teams to translate business problems into practical ML solutions
- Contribute to production-ready development with a focus on maintainability, reproducibility, and performance

Requirements:
- 3–5+ years of professional experience in Machine Learning / Computer Vision
- Strong senior-level practical expertise in computer vision, machine learning, and applied model development
- Hands-on experience with tasks such as object detection, image classification, anomaly detection, feature-based approaches, or similar
- Solid understanding of classical ML methods, including tree-based models, linear models, feature engineering, model selection, and evaluation
- Strong Python skills and practical experience with PyTorch, OpenCV, and common ML tooling
- Experience building full ML workflows including data preparation, augmentation, preprocessing, training, validation, testing, and deployment handoff
- Strong understanding of model evaluation, debugging, overfitting, generalization, optimization, and experiment-driven improvement
- Ability to write clean, modular, maintainable code and independently own technical solutions
- Strong analytical thinking, engineering maturity, and problem-solving skills

Nice to Have:
- Experience in adjacent ML domains such as time-series, audio, or NLP
- Experience with embedding-based methods, metric learning, retrieval systems, or memory-bank approaches
- Practical experience with model optimization techniques such as quantization, pruning, distillation, or related efficiency-focused approaches
- Experience working with real-world industrial datasets and ambiguous problem formulations
- Knowledge of software engineering best practices, reproducible experimentation, and pipeline design

We offer:
- Free English classes with a native speaker and external courses compensation;
- PE support by professional accountants;
- Medical insurance;
- Team-building events, conferences, meetups, and other activities;
- There are many other benefits you’ll find out at the interview.

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 client:
Our client is an IT company that develops technological solutions and products to help companies reach their full potential and meet the needs of their users. The team comprises over 600 specialists in IT and Digital, with solid expertise in various technology stacks necessary for creating complex solutions.

About the role:
We are seeking an experienced Data Scientist with a passion for large language models (LLMs) and cutting-edge AI research. In this role, you will design and prototype data preparation pipelines, collaborating closely with data engineers to transform your prototypes into scalable production pipelines, design and implement a state-of-the-art evaluation and benchmarking framework to measure and guide model quality, and do end-to-end LLMs training. You will work alongside top AI researchers and engineers, ensuring our models are not only powerful but also aligned with user needs, cultural context, and ethical standards.

Responsibilities:
- Curation of datasets for pre-training, supervised fine-tuning, and alignment
- Research and develop best practices and novel techniques in LLM training and evaluation pipelines.
- Collaborate closely with data engineers, annotators, linguists, and domain experts to scale data processes, define evaluation tasks and collect high-quality feedback.

Requirements:
Education & Experience:
- 3+ years of experience in Data Science or Machine Learning, preferably with a focus on NLP.
- An advanced degree (Master’s or PhD) in Computer Science, Computational Linguistics, Machine Learning, or a related field is highly preferred.
GenAI & NLP Expertise:
- Practical experience with fine-tuning LLMs / VLMs models
- Hands-on experience with modern NLP approaches, including embedding models, semantic search, text classification, sequence tagging (NER), transformers/LLMs, RAGs.
ML & Programming Skills:
- Strong experience with deep learning frameworks such as PyTorch or JAX for building models.
- Ability to write efficient, clean code and debug complex model issues.

Nice-to-have:
Advanced NLP/ML Techniques:
- Applied experience using Reinforcement Learning in NLP / LLM settings
- Prior work on LLM safety, fairness, and bias mitigation.
- Experience generating and curating synthetic datasets for Supervised Fine-Tuning (SFT), including quality control and scaling considerations.
Research & Community:
- Publications in NLP/ML conferences or contributions to open-source NLP projects.
- Active participation in the AI community or demonstrated continuous learning (e.g., Kaggle competitions, research collaborations) indicates a passion for staying at the forefront of the field.
MLOps & Infrastructure:
- Hands-on experience with containerization (Docker) and orchestration (Kubernetes) for ML, as well as ML workflow tools (MLflow, Airflow).
- Experience in working alongside MLOps engineers to streamline the deployment and monitoring of NLP models.
- Experience with cloud platforms (AWS, GCP, or Azure) and big data technologies (Spark, Hadoop, Ray, Dask) for scaling data processing or model training is a plus.
Problem-Solving:
- Innovative mindset with the ability to approach open-ended AI problems creatively.
- Comfort in a fast-paced R&D environment where you can adapt to new challenges, propose solutions, and drive them to implementation

The company offers:
- Office or remote — it’s up to you. You can work from anywhere, and we will arrange your workplace
- Remote onboarding
- We train employees with the opportunity to learn through the company’s library, internal resources, and programs from partners
- Health and life insurance
- Wellbeing program and corporate psychologist
- Reimbursement of expenses for Kyivstar mobile communication

Inviting Lead Embedded Software Engineer to join a growing account in the medical devices industry domain.
Our client is the global leader company of dental solutions.

Our team is focusing on designing, developing, and testing embedded software for medical devices, where the software has strong restrictions for safety and quality, power management, and memory usage.
 

Requirements

• 6+ years of experience in embedded development
• Advanced C programming language
• Ability to read electrical schematics
• Experience working with the MCU peripherals: SPI, UART, I2C, GPIO, Timers, PWM, etc
• Experience in event-driven programming will be a plus
• Good knowledge of USB
• Upper-Intermediate English (be able to communicate with the client)
• Good communication skills
   

Job responsibilities

• Design and development of embedded software in C for the medical device
• Design and implementation of new features
• Update/maintenance of existing embedded software
• Unit and Integration testing
• Test framework support
• Communicate with client

SYTOSS is looking for an experienced Full-Stack Python Developer with a strong security background to perform a structured code review of our SecOps platform built with FastAPI, React, and MongoDB.

Requirements:

— 5+ years of software development experience
— Strong experience with Python 3.10+ and FastAPI
— Experience with MongoDB (aggregation pipelines, indexing, multi-tenant isolation)
— Experience with Redis, especially Redis Streams with consumer groups
— Experience with async Python (asyncio, httpx, motor)
— Experience with APScheduler or similar schedulers
— Experience with React 18/19 (hooks, context, React Router v6)
— Experience with Tailwind CSS
— Understanding of JWT authentication, RBAC, and multi-tenant SaaS security
— Basic knowledge of Linux, Nginx, TLS, Docker
— Experience with Git
— English: Upper-Intermediate+

Nice to have:

— Experience with WebSockets / real-time architectures
— Experience performing security-focused code reviews

Responsibilities:

— Conduct a structured code review of the platform (FastAPI + React + MongoDB)
— Evaluate system architecture and code quality
— Review authentication, RBAC, and tenant isolation logic
— Analyze event bus (Redis Streams) and scheduler implementation
— Identify potential security risks or logic flaws
— Prepare a written report with findings and recommendations

What we offer:

🌍 Work from Anywhere: The flexibility to work remotely or from our office, depending on what suits you best.

🌱 Work-Life Balance: We support your well-being with paid vacation and sick leave to ensure you have the time you need to recharge. Enjoy a flexible schedule that fits your lifestyle.

📊 Full Accounting Support: We handle all administrative details, including tax coverage and comprehensive accounting support.

💰 Competitive Compensation: Competitive compensation that reflects your experience and skills.

👥 Friendly Team & Cozy Environment: Join a supportive, collaborative team. We also offer thoughtful gifts and organize engaging corporate events.

🚀 No Bureaucracy, No Micromanagement: A workplace with minimal bureaucracy and no micromanagement. Embrace the freedom to innovate and excel in an environment where everyone feels valued and heard. 

Data Science UA is a service company with strong data science and AI expertise. Our journey began in 2016 with uniting top AI talents and organizing the first Data Science tech conference in Kyiv. Over the past 9 years, we have diligently fostered one of the largest Data Science & AI communities in Europe.

About the client:
The company is a trailblazer in the world of data-driven advertising, known for its innovative approach to optimizing ad placements and campaign effectiveness through advanced analytics and machine learning techniques. Our mission is to revolutionize the advertising sector by enabling brands to reach their audiences more effectively.

About the role:
We are seeking an experienced and motivated Senior Data Scientist to join our dynamic team. The ideal candidate will have deep expertise in supervised learning, reinforcement learning, and optimization techniques. You will play a pivotal role in developing and implementing advanced machine learning models, driving actionable insights, and optimizing our advertising solutions.
This position is based in Ukraine. The team primarily works remotely, with occasional in-person meetings in the Kyiv or Lviv office.

Responsibilities:
- Develop and implement advanced supervised and reinforcement learning models to improve ad targeting and campaign performance.
- Collaborate with cross-functional teams to identify opportunities for leveraging machine learning and optimization techniques to solve business problems.
- Conduct extensive data analysis and feature engineering to prepare datasets for machine learning tasks.
- Apply optimization algorithms to enhance the effectiveness and efficiency of advertising campaigns.
- Evaluate and refine existing models to enhance their accuracy, efficiency, and scalability.
- Utilize statistical techniques and machine learning algorithms to analyze large and complex datasets.
- Communicate findings and recommendations effectively to both technical and non-technical stakeholders.
- Stay updated with the latest advancements in machine learning, reinforcement learning, and optimization techniques.
- Work with engineering teams to integrate models into production systems.
- Monitor, troubleshoot, and improve the performance of deployed models.
- Mentor junior data scientists and contribute to the continuous improvement of the data science practice within the company.

Requirements:
- 5+ years of experience in data science or machine learning roles, with a strong focus on supervised learning, reinforcement learning, and optimization techniques.
- Technical Skills:
- Proficiency in Python.
- Strong understanding of working with relational databases and SQL.
- Experience with machine learning libraries such as scikit-learn, TensorFlow, PyTorch, or similar.
- Deep understanding of statistical modeling and supervised learning algorithms (e.g., linear regression, logistic regression, decision trees, random forests, SVMs, gradient boosting, neural networks).
- Hands-on experience with reinforcement learning algorithms and frameworks like OpenAI Gym.
- Practical experience with optimization algorithms (linear, non-linear, combinatorial, etc.).
- Hands-on experience with data manipulation tools and libraries (e.g., pandas, NumPy).
- Familiarity with cloud services, specifically AWS, is a plus.
- Practical experience building and managing cloud-based ML pipelines using AWS services (e.g. SageMaker, Bedrock) is a plus.
- Education:
- Bachelor's or Master's degree in Computer Science, Statistics, Mathematics, Engineering, or a related field. A PhD is a plus.

Other Skills:
- Strong analytical and problem-solving skills.
- Excellent communication skills, with the ability to clearly articulate complex concepts to diverse audiences.
- Ability to work in a fast-paced environment and manage multiple priorities.
- Strong organizational skills and attention to detail.
- Ability to mentor and guide junior data scientists.
- Must be able to communicate with U.S.-based teams

The company offers:
- An opportunity to be at the forefront of advertising technology, impacting major marketing decisions.
- A collaborative, innovative environment where your contributions make a difference.
- The chance to work with a passionate team of data scientists, engineers, product managers, and designers.
- A culture that values learning, growth, and the pursuit of excellence.

Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries.

About the Product:

proteanTecs provides an in-system self-monitoring solution for electronic chips and advanced test equipment. With on-chip agents and deep data analytics, the product captures sensor data throughout design, production and field operation, enabling real-time visibility into performance, quality and reliability. It addresses the challenges of nanometer-scale devices and complex multi-environment deployments, processing large volumes of test data across Windows, Linux and embedded platforms. Strong engineers drive the core C++ engine, machine learning integration and cross-platform interfaces that underpin predictive capabilities and continuous product delivery.

About the Role:

As a Senior C++ Software Engineer on proteanTecs’ core product team, you will own the full software development lifecycle for multi-architecture, cross-platform C++ modules that power on-chip monitoring and data analytics in advanced test systems. You will work in a small, self-sufficient team responsible end-to-end for a customer-facing product, collaborating with software, hardware and science stakeholders. The role combines feature design and implementation with infrastructure ownership, CI/CD automation and direct customer integration. You will tackle performance-critical algorithms and complex system design, influence product direction and ensure high code quality standards in a fast-evolving environment.

Key Responsibilities:

• Design and implement cross-platform C++ software for Linux and Windows environments.
• Develop and maintain language bindings and interfaces using Python, Java and C#.
• Contribute to the full software development life cycle, including design, implementation, integration, testing, and deployment of software solutions for advanced test equipment.
• Build systems and CI/CD pipelines with CMake, Bash, Docker and GitHub Actions.
• Optimize performance, memory usage and responsiveness of edge and host-based systems.
• Conduct peer code reviews and uphold coding standards, conventions and documentation.
• Collaborate with multidisciplinary teams and engage with customers to clarify requirements and troubleshoot in lab or production.
• Create and maintain technical documentation, including design specifications and test plans.
• Implement and validate complex algorithms provided by in-house algorithm developers.

Required Competence and Skills:

• 7+ years of hands-on experience in production-grade C++ development (C++11/14/17) on both embedded and host systems.
• Proven experience designing and maintaining build systems, automation scripts and CI/CD pipelines (CMake, Bash, Docker, GitHub Actions).
• Deep understanding of data structures, algorithms, version control, performance optimization and test methodologies.
• Experience developing cross-platform software for Windows and Linux environments.
• Commitment to code quality: consistent formatting, clear conventions and thorough documentation.
• Strong interpersonal skills and ability to collaborate with distributed teams and customers.
• Proficiency in English communication, both written and verbal.
• Bachelor’s degree in Electrical, Computer or Software Engineering, Mathematics or Computer Science.

Nice to Have:

• Experience with Python, Java and C# in application integration.
• Familiarity with SQLite3 for embedded or application-level database use.
• Experience using SWIG to generate C++ bindings for high-level languages.
• Hands-on experience with post-silicon testing using Advantest or Teradyne automated test equipment.

Why Us:

We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

We provide full accounting and legal support in all countries we operate.

We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

We offer a highly competitive package with yearly performance and compensation reviews.