Jobs at Djinni

Key Responsibilities:

• Manage advertising campaigns;
• Create ad copy and draft design briefs (TAs) for in-house graphic designers;
• Work with Binom tracker and our proprietary ad-tech solution to create and manage large-scale campaigns for internal products;
• Explore and master new services and platforms;
• Maintain a structured approach to tasks: analyze data and derive actionable insights.

Requirements:

• 1+ year of experience in a similar role;
• 1+ year of experience within the Gambling/Betting vertical;
• Proficiency in English sufficient for effective communication with partners and colleagues;
• High level of focus and diligence (perseverance);
• Eagerness to learn: we are constantly evolving our internal ad-tech platform and integrating new traffic sources.

What We Offer:

• Remote work format;
• Salary in EUR;
• Career growth opportunities, both vertical and horizontal;
• Full infrastructure: an in-house team of designers, layout developers, and programmers to bring your ideas to life.

Headway Inc is a global tech company, revolutionizing lifelong learning by creating digital products for over 150 million users worldwide. Our mission is to help people grow. We’re proud to be ranked 4th among the World’s Top EdTech Сompanies by TIME magazine. We believe lifelong learning should be accessible, personalized, and impactful to each individual. That’s how we change the world and why we bring together exceptional minds.
 

The core of our achievements is our team. We believe in people and shared values SELECT. That’s why, together with Oleksandr Kushchynskyi, our Product Manager, we’re looking for a System Engineer to join our team of superstars transforming the EdTech industry.

What team will you be a part of?

Infrastructure Squad ensures smooth operations and scalable growth for the business. The team designs and implements solutions to enhance the daily experience of everyone at Headway Inc.
 

This job is perfect for you if you:

— Want to own and scale corporate IT infrastructure end-to-end, not just “support tickets.”
— Are an A-player who takes initiative, prioritizes well, and thrives in a high-volume, fast-paced environment.
— Enjoy communicating with business stakeholders, translating needs into secure, scalable solutions, and documenting them clearly.
 

What will you do:

— Own and scale on-prem IT infrastructure and network architecture (WiFi, LAN/WAN, VPN, DNS), including backup systems (UPS, hardware backups).
— Administer the corporate SaaS ecosystem end-to-end (Google Workspace, Slack, Notion) and optimize how teams use it.
— Implement and manage security foundations: IAM (Google Workspace, Okta), device management (Jamf), and security policies across all corporate devices.
— Design and build IT process automations to eliminate manual work and improve efficiency.
— Manage IT assets and software licenses lifecycle, maintaining accurate inventory and operational readiness.
— Lead the Jira ITSM environment and maintain a high-standard Internal Knowledge Base.
— Optimize IT operations to a level where they can be smoothly managed by a team (and help shape what that team should look like).
 

What do you need to join us:

— 4+ years of experience in System Administration / IT Operations (or similar roles).
— Strong networking knowledge and hands-on experience managing corporate networks (protocols, VPN, DNS, WiFi).
— Advanced administration of Google Workspace, Slack, and Jira (including ITSM practices).
— Security mindset and experience with MDM (Jamf) and IAM configuration (Google Workspace, Okta).
— Ability to script or use low-code/no-code tools to automate IT workflows and reduce manual operations.
— A strong documentation culture: you enjoy creating clean, structured, and useful docs.
— High ownership, ability to prioritize business needs, and motivation to build/lead a team in the future.
— Alignment with the values of our team (SELECT).
 

What do we offer:

— Work within an ambitious team on a socially impactful education product.
— An office with a reliable shelter, generators, satellite internet, and other amenities.
— Access to our corporate knowledge base and professional communities.
— Personal development plan.
— Compensation for English language learning, external training, and courses.
— Medical insurance and full sick leave compensation.
— Sports activities: running, yoga, boxing, and more.
— Corporate holidays: we go on a week-paid holiday to rest and recharge twice a year. Besides that, we provide 20 paid vacation days per year.
— Supporting initiatives that help Ukraine. Find out more about our projects here.
 

Working schedule:

This is a full-time position. During the 3-month probation period, we ask you to work full-time from our office to get fully onboarded, build strong cross-team collaboration, and dive deep into our IT environment.

After probation, you’ll switch to a hybrid format — you’ll mainly work from the office, with the option to work from home occasionally when needed.
 

Are you interested?
Send your CV!

YozmaTech isn’t just another tech company – we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.
We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.
Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family – you’ll feel right at home with us.

Our client is an innovative product company developing a smart monitoring device that combines computer vision, machine learning, and advanced camera technologies. The product analyzes sleep patterns and provides data-driven insights, helping families improve daily routines. The company is a fast-growing VC-backed startup with a strong engineering culture and real-world products used globally.

Key Requirements:
🔹 Mandatory experience with Rust in Embedded systems;
🔹 Strong experience with Embedded Linux on ARM (Cortex-A);
🔹 Yocto is a big plus;
🔹 Experience with Video4Linux, PulseAudio, systemd;
🔹 Ability to develop drivers and work with interfaces:;
🔹 I2C, SPI, UART, I2S;
🔹 Experience with Device Tree / OpenFirmware, IIO — advantage;
🔹 Strong debugging, cross-compilation, and toolchain knowledge;
🔹 Ability to read and work with existing codebases;
🔹 Experience with testing (unit, integration, E2E);
🔹 Strong Git skills and GitHub workflow experience;
🔹 English – Upper-Intermediate or higher.

Will be plus:
🔹 Networking: TCP/IP, application protocols, encryption;
🔹 BLE (GATT, Advertising, Bonding);
🔹 Wi-Fi protocols and security;
🔹 Video & audio streaming and transcoding;
🔹 (H264/H265, AAC, OPUS, WebRTC, FFmpeg/GStreamer);
🔹 Microcontrollers experience;
🔹 ESP32, FreeRTOS, lwIP, NimBLE — strong plus;

What you will do:
🔹 Develop firmware components in C and Rust: drivers, BSP, networking and multimedia applications;
🔹 Analyze requirements and provide time/effort estimations;
🔹 Design features end-to-end (from idea to production);
🔹 Collaborate with Product, Mobile, and Backend teams;
🔹 Participate in technical discussions and propose solutions;
🔹 Produce technical documentation and architecture diagrams;
🔹 Plan and own development tasks;
🔹 Lead cross-functional initiatives that impact Firmware, Mobile, and Backend;

Interview stages:
🔹 Initial HR interview;
🔹 Technical interview;
🔹 Assignment & coding session;
🔹 Final interview with VP of Engineering;
🔹 Reference Check;
🔹 Offer;

Why Join Us?

At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products – and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.
From day one, you’ll get:
🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

We’ll keep it respectful, clear, and personal from start to offer.
You’ll always know what project you’re joining – and how you can grow with us.

Everyone’s welcome

Diversity makes us better. We create a space where you can thrive as you are.

Ready to build something meaningful?

Let’s talk. Your next big adventure might just start here.

Team Lead Python Data Engineer (Python)

Our client is an Israeli startup specializing in geodata.

We are looking for a Team Lead Python Data Engineer to lead the design and operation of large-scale data pipelines that generate property attributes from imagery using our internal AI models.

This role focuses on leading the development of distributed processing systems running on Kubernetes clusters and on-prem GPU infrastructure, capable of processing massive geospatial datasets at national scale.

You will work closely with AI engineers and SaaS platform teams to guide the development of robust pipelines that transform imagery into structured property intelligence used by the insurance and financial industries.

Responsibilities

• Design and build large-scale Python processing pipelines for satellite and street-level imagery

• Develop distributed workloads running on Kubernetes clusters

• Build and maintain orchestration workflows using Airflow

• Design and manage data storage and processing workflows using PostgreSQL

• Integrate large-scale AI inference pipelines running on GPU infrastructure

• Optimize processing performance for massive imagery datasets

• Improve observability, monitoring, and reliability of production pipelines

• Collaborate with AI engineers to support large-scale computer vision inference workflows

• Integrate pipelines with AWS-based services

Requirements

• 7+ years of Python engineering experience

• Strong experience designing distributed data pipelines or large-scale data processing systems

• Experience running workloads on Kubernetes

• Hands-on experience with Airflow or similar orchestration frameworks

• Experience processing large datasets (imagery, geospatial, or other high-volume data)

• Strong understanding of ETL architectures and distributed data systems

Nice to Have

• Experience working with satellite imagery, aerial imagery, or remote sensing datasets

• Experience with GPU-based inference pipelines

• Experience working with on-prem compute clusters

• Experience with C#

Our client is an Israeli startup specializing in geodata.

Job Description

As a Product Manager on our AI Assistant team, you’ll define and execute product strategy for our products — the Platform, the Builder and our own AI assistant, Clippy. You’ll work on making AI capabilities accessible to non-technical teams and collaborate across departments to drive innovation and adoption.

In your day-to-day, you will:

• Drive the evolution of our internal AI assistant creation tools, making complex AI capabilities accessible to both non-technical and technical users
• Collaborate across engineering, design, and business teams to identify and prioritize AI assistant use cases
• Lead Clippy AI assistant end‑to‑end: build, test, and monitor in production; run experiments and ship iterative improvements with engineering support
• Define and operationalize best practices for building and evaluating assistants — turning them into productized capabilities (templates, workflows etc.)
• Keep ahead of the latest AI trends and technologies to drive innovation

Requirements

• 3+ years of product management experience
• A fast learner with a strong technical understanding
• Business insight and the ability to align product development with company goals and user value
• Thrives in dynamic, fast-paced environments where priorities shift quickly

Nice to have:

• Experience shipping platform products, internal tools, developer tools, or workflow/builder products
• Experience building products that enable non-technical users to leverage complex technologies
• Familiarity with AI/LLM product patterns (prompting, evaluation, monitoring)
• UX/UI design experience or expertise

About the Team

In the AI Assistant team, we’re building the next generation of Wix AI solutions. Our mission is to democratize AI assistant creation, empowering teams across Wix to develop powerful, tailored AI solutions. We thrive on technical innovation, user-centric design, and the challenge of transforming complex AI capabilities into intuitive, value-driven products that solve real business problems.

About Wix

Wix makes it possible for anyone to succeed online. 

Since 2006, we've grown to around 5,300 employees in 22 countries, launched over 40 products, and serve over 299 million users and their visitors worldwide. 

At Wix, we push you to innovate, evolve in non-traditional ways, and collaborate. We operate in small teams that work closely together at a high level. 

We're proud to be an equal opportunity company. Wix was built around the idea that everyone has the right to be successful, online. This same vision defines us as a company: creating a work environment where everyone is welcome, and anyone has the right to succeed.

Our client is an Israeli startup specializing in geodata.

We are looking for a Senior Python Data Engineer to design and operate large-scale data pipelines that generate property attributes from imagery using our internal AI models.

This role focuses on building distributed processing systems running on Kubernetes clusters and on-prem GPU infrastructure, capable of processing massive geospatial datasets at national scale.

You will work closely with AI engineers and SaaS platform teams to build robust pipelines that transform imagery into structured property intelligence used by the insurance and financial industries.

Responsibilities

• Design and build large-scale Python processing pipelines for satellite and street-level imagery

• Develop distributed workloads running on Kubernetes clusters

• Build and maintain orchestration workflows using Airflow

• Design and manage data storage and processing workflows using PostgreSQL

• Integrate large-scale AI inference pipelines running on GPU infrastructure

• Optimize processing performance for massive imagery datasets

• Improve observability, monitoring, and reliability of production pipelines

• Collaborate with AI engineers to support large-scale computer vision inference workflows

• Integrate pipelines with AWS-based services

Requirements

• 7+ years of Python engineering experience

• Strong experience designing distributed data pipelines or large-scale data processing systems

• Experience running workloads on Kubernetes

• Hands-on experience with Airflow or similar orchestration frameworks

• Experience processing large datasets (imagery, geospatial, or other high-volume data)

• Strong understanding of ETL architectures and distributed data systems

Nice to Have

• Experience working with satellite imagery, aerial imagery, or remote sensing datasets

• Experience with GPU-based inference pipelines

• Experience working with on-prem compute clusters

• Experience with C#

Our client is an Israeli startup specializing in geodata.

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 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 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: 3+ 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.

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
   

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

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

SYTOSS is looking for an experienced Senior 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.