Jobs at Djinni

We are looking for a Senior Full-Stack Developer with a strong background in React Native and Node.js, who also has proven Team Lead experience. Although this role does not involve mentoring or managing a team, leadership experience is crucial for maintaining high technical standards and effective communication with clients.

Responsibilities:

• Provide precise task estimations and actively contribute to project planning

• Perform high-quality Code Reviews and ensure best engineering practices

• Join and lead technical discussions with clients (occasionally)

• Develop, maintain, and optimize applications across the full stack using React Native + Node.js

• Ensure the technical direction of the project is aligned with business needs

Requirements:

• 5+ years of commercial development experience with React Native and Node.js

• 2+ years of experience as a Team Lead (tech leadership, code quality ownership, client communication)

• Strong knowledge of software architecture and scalable system design

• Hands-on experience with Git, pull requests, and review processes

Softcery is a small, focused team building AI-driven B2B software solutions. We work closely with clients in the US and UK to launch AI voice agents and develop custom B2B platforms. Most of our work involves advanced R&D and complex problem-solving.
 

We’re looking for a Project Manager / Product Lead who takes ownership of results, leads with clarity, and isn’t afraid to make tough calls. This is a hands-on, full-cycle delivery role where you’ll be responsible for turning ideas into shipped results — working closely with cross-functional teams, clients, and leadership.

We are looking for our future team member in Lviv, as we have meetings at a coworking space. We also regularly organize online and offline meetings with the entire team to keep in touch, even during remote work.

What You’ll Do:

• Manage the full lifecycle of B2B and AI projects — from discovery to delivery — in collaboration with distributed cross-functional teams.
• Build productive, respectful relationships with clients. Set clear expectations, define boundaries, and protect the integrity of the project when needed.
• Own planning and scope — manage risks, budgets, priorities, and stakeholders across the product lifecycle.
• Conduct market and competitor analysis. Shape and validate product hypotheses that lead to real business outcomes.
• Write and maintain documentation. Track metrics, report on progress, and help the team stay focused on value.
• Support and grow your team — through thoughtful communication, coaching, and goal alignment.

What We’re Looking For:

• 1+ years of experience as a Project Manager or Product Lead in software teams.
• Proven track record in managing uncertainty and making difficult prioritization or scoping decisions.
• Comfortable saying “no” to founders or clients when needed, and re-scoping projects under constraints.
• You take ownership and don’t delegate responsibility — you own outcomes, not just tasks.
• Ability to break product vision into actionable tasks, track priorities, and measure impact.
• Excellent communication skills — can clearly explain complex things to both technical and non-technical stakeholders.
• Solid understanding of the software development lifecycle, SaaS products, and agile delivery models.
• Fluent English (C1+) and Ukrainian.

Nice to Have:

• Experience in AI, TravelTech, or E-Commerce domains.
• Successfully launched a product from 0 to release.
• Based in or near Lviv.

What We Offer:

• Structured onboarding & dedicated support — you’ll get a clear onboarding plan, documented workflows, and a team that’s got your back.
• Flexible remote schedule — work from wherever and whenever you’re most productive.
• Learning budget — we cover books, courses, English lessons, and AI tools for your professional growth.
• Full accounting support — so you can focus on the work, not the paperwork.
• Time off — 20 paid vacation days, 12 sick days, 2 paid period leave days/month (for women), and your birthday off.
• IT Cluster membership — access to professional events and networking opportunities in the local tech community.

🔁 Hiring Process: Recruiter Interview → Qualification Interview → Final Interview → Reference Check.

Send us your CV and a few words about your experience managing complex software projects. We look forward to meeting you 👋

What We Value:
— Strong knowledge of QA methodologies, tools, and processes
— Experience testing mobile and web applications
— Understanding of the software development lifecycle
— Attention to detail and problem-solving mindset

Responsibilities:
— Creating and executing test cases for mobile and web projects
— Identifying, documenting, and tracking bugs
— Collaborating with developers and PMs to ensure product quality
— Performing regression, functional, and usability testing
— Providing clear and structured feedback to the team
We Offer:
— Standard 8-hour work schedule

Send us your resume — we look forward to connecting with you!

Profisea is an Isrraeli DevOps and Cloud boutique company with a full cycle of services. For more than nine years, we have been implementing best practices of GitOps, DevSecOps, and FinOps, and providing Kubernetes-based infrastructure services to help businesses of all sizes —SMB, SME, or large enterprise clients to stay innovative and effective.

We are seeking a highly motivated Junior Project Manager to join our dynamic team. This role is perfect for someone eager to grow their project management skills in a fast-paced, rapidly evolving environment. 

You will have the opportunity to work closely with Senior Project Manager and cross-functional teams, gaining hands-on experience while managing smaller projects and supporting larger initiatives. This role offers excellent growth potential, with a focus on learning and development. 
 

Requirements: 

• Knowledge of English – Upper Intermediate + ;
• Bachelor’s degree in Business, Project Management, or related field will be a plus; 
• Strong organizational and multitasking skills with the ability to manage multiple priorities;
• Eagerness to learn and adapt quickly in a fast-paced environment;
• Excellent communication skills, both written and verbal; 
• Ability to work collaboratively with cross-functional teams;
• Basic understanding of project management principles and tools (e.g., MS Project, JIRA, Trello); 
• Problem-solving mindset with attention to detail;
• Strong analytical, planning, and organizational skills with an ability to manage competing demands; 
• Good negotiation skills, knowledge of business etiquette; 
• Strong team orientation and the ability to build cohesiveness to achieve results. 
   

Responsibilities:

• Assist in the planning, coordination, and execution of multiple projects in parallel;
• Work alongside senior project managers to ensure projects are delivered on time, within scope, and budget;
• Develop project documentation including project plans, timelines, and status reports;
• Coordinate with stakeholders to gather requirements, track progress, and communicate project updates;
• Assist in identifying project risks and developing mitigation strategies;
• Support the team in maintaining and improving project management processes;
• Participate in team meetings, providing input on project status and suggesting improvements;
• Gain knowledge of various project management tools and methodologies. 
   

What We Offer:

• Opportunity to be part of a fast-growing company and to grow with us;
• Being at the peak of DevOps and Cloud services industry;
• Professional working environment, where you’d be an essential member of our company.

Intro

ITSUA is a web development agency that builds a wide range of sites and web applications for clients worldwide. We’re seeking a skilled, self-motivated developer who can adapt quickly to new contexts and work effectively both independently and within a small, cross-functional team.

General

• Commercial experience
• Deep understanding of how Internet and web apps work
• English: B1 level or higher
• Proven self-discipline: plan your day, meet deadlines, and switch context smoothly

Must-have (Backend: Symfony)

• Commercial experience with Symfony framework, REST APIs
• Strong PHP and SQL fundamentals (joins, indexes, transactions)
• Authentication & Authorization (JWT, OAuth2)
• MySQL / PostgreSQL
• Confident Git usage

Nice-to-have (Frontend, DevOps)

• Frontend: React, Tailwind / Material UI
• Ability to design REST APIs from scratch (Open API, pagination, etc.)
• Deep understanding of React and Symfony frameworks internals
• Familiarity with Docker Compose, CI/CD, and Linux administration

Why ITSUA

• We work in small cross-functional squads without micromanagement
• Friendly environment with mentorship, professional growth, and English lessons
• Competitive salary

Join Redwerk as an SMM Specialist and take ownership of our product-focused accounts across Instagram, Threads, and TikTok! Your primary focus will be growing social media presence for our board games and clothing brand, creating engaging content and building communities around our products. You’ll also have the chance to contribute to Redwerk’s IT-related social media presence, making this role both creative and diverse.

Required Skills:

• 2–3+ years of experience in SMM or digital marketing
• Proven expertise in Instagram, TikTok, and Threads
• Strong understanding of social media trends and audience engagement
• Ability to create content in different formats, including video
• Experience with the target
• Experience in planning and executing content strategies
• Knowledge of analytics, metrics, and growth tactics
• English proficiency (B2+ level or higher)
• Experience with LinkedIn is considered as a plus

Responsibilities:

• Manage and grow social media accounts for our board games and clothing brand
• Develop and execute creative content strategies across Instagram, TikTok, and Threads
• Create engaging posts in various formats (visual, text, video)
• Track performance, analyze results, and optimize strategies for reach and engagement
• Collaborate on campaign ideas and contribute fresh creative concepts
• Occasionally support Redwerk’s IT and founder’s accounts with content

We Offer:

• Competitive salary
• Unlimited remote work
• Flexible schedule, start by 2 PM
• 20 days paid leave
• 14 days of paid sick leave
• Entrepreneur support; tax coverage
• Wellness benefits
• Language classes in English, Spanish, German
• Tech event support; fee reimbursement
   

Values & Culture:

• Supporting Ukraine's Armed Forces
• Engaging in charity initiatives
• Organizing IT-focused events
• Encouraging initiative and idea-sharing
• Fostering transparent, meaningful relationships
• Emphasizing task ownership and follow-through
• Prioritizing work-life balance
   

Management Style:

• Flat structure; minimal bureaucracy
• Ability to influence company processes and decisions
• Tool selection autonomy for goal achievement
• Streamlined, efficient workflows
• Team of creative, inventive mid-senior professionals
   

Joining Redwerk:

As our SMM Specialist, you will take ownership of our product-focused social media accounts. You’ll create engaging content, develop strategies, and grow communities around our board games and clothing brand. If you're passionate about social media, creativity, and building a strong brand presence across platforms, this role is for you!

Team Summary

Our IT Infrastructure & Support team is responsible for managing and resolving complex technical issues, ensuring a stable and efficient technology environment for the entire organization. We are focused on both high-priority issue resolution and continuous process improvement. We also play a key role in coordinating with other departments, including HR and Recruitment, to streamline the  onboarding and offboarding processes.

Job Summary

The IT Infrastructure & Support Lead directs and mentors the support team while actively participating in resolving complex technical issues. This role combines leadership with hands-on technical expertise, responsible for both leading the IT support team and providing direct on-site support for advanced incidents.

Responsibilities and Duties

• Lead and mentor the team members to enhance their skills, foster a collaborative environment, and boost overall performance.
• Serve as the primary point of escalation for complex and high-priority technical issues, providing advanced troubleshooting and expert guidance to the team.
• Provide direct, hands-on technical support for escalated incidents, user requests, and complex hardware/software issues, both remotely and in person.
• Monitor team performance by tracking key metrics (e.g., ticket volume, resolution time, user satisfaction) and generate regular reports for IT management.
• Manage IT support projects, including hardware refreshes, software rollouts, and system upgrades, ensuring they are completed on time and within scope.
• Coordinate with other departments, including HR and Recruitment, to streamline the IT onboarding and offboarding processes for all employees.
• Manage physical IT assets, including inventory, on-site setup, and maintenance of computer systems and network hardware.
• Assist with procurement decisions and ensure all systems and configurations comply with company standards and security policies.

Qualifications and Skills

• Hands-on experience in troubleshooting complex issues across macOS, Windows, and Linux operating systems.
• Advanced knowledge of network architecture, infrastructure management, and security principles, including firewalls, VPNs, and endpoint security.
• Proven experience in administering and optimizing ITSM platforms like Freshservice and Jira to improve support workflows, manage service level agreements (SLAs), and enhance user satisfaction.
• Good knowledge of IT Asset Management and proven ability to manage the lifecycle of IT assets (inventory, procurement) and vendor relations, to ensure all systems comply with company standards and security policies.
• Hands-on experience with MDM, networking, and identity management tools.
• Proven ability to coach, mentor, and develop technical staff, fostering a culture of collaboration, continuous improvement, and high performance.
• Good communication skills to effectively collaborate with stakeholders across all levels of the organization and act as a liaison for the IT team.

• Good spoken and written English.

   

Nice to have

• Advanced scripting and automation skills to streamline team workflows and system management.
• Hands-on experience with Okta, Jamf, Cisco Meraki, Google Workspace, and VMware Workspace ONE.

We offer multiple benefits that include

• The environment of equal opportunities, transparent and value-based corporate culture and an individual approach to each team member
• Competitive compensation and perks. Annual performance review
• Gig-contract
• 21 paid vacation days per year, paid public holidays according to the Ukrainian legislation
• Development opportunities like corporate courses, knowledge hubs, and free English classes as well as educational leaves
• Medical insurance is provided from day one. Sick leaves and medical leaves are available
• Remote working mode is available within Ukraine only
• Free meals, fruits, and snacks when working in the office.

Quantum is a global technology partner delivering high-end software products that address real-world problems.

We advance emerging technologies for outside-the-box solutions. We focus on Machine Learning, Computer Vision, Deep Learning, GIS, MLOps, Blockchain, and more.

Here at Quantum, we are dedicated to creating state-of-art solutions that effectively address the pressing issues faced by businesses and the world. To date, our team of exceptional people has already helped many organizations globally attain technological leadership.

We constantly discover new ways to solve never-ending business challenges by adopting new technologies, even when there isn’t yet a best practice. If you share our passion for problem-solving and making an impact, join us and enjoy getting to know our wealth of experience!

About the position

Quantum is expanding the team and has brilliant opportunities for a Data Science Engineer. The client is a technological research company that utilizes proprietary AI-based analysis and language models to provide comprehensive insights into global stocks in all languages. Our mission is to bridge the knowledge gap in the investment world and empower investors of all types to become “super-investors.”

Through our generative AI technology implemented into brokerage platforms and other financial institutions’ infrastructures, we offer instant fundamental analyses of global stocks alongside bespoke investment strategies, enabling informed investment decisions for millions of investors worldwide.

Must have skills:

• At least 5 years of commercial experience in Data Science
• Strong knowledge of linear algebra, calculus, statistics, and probability theory
• Proficiency in algorithms and data structures
• Experience with Machine Learning libraries (NumPy, SciPy, Pandas, Scikit-learn)
• Experience with at least one Deep Learning framework (TensorFlow, Keras, or PyTorch)
• Knowledge of modern Neural Network architectures
• Experience in developing solutions with LLMs
• Experience with Cloud Computing Platforms (AWS, Google Cloud, or Azure)
• Practical experience with Docker
• Experience with SQL
• Strong understanding of Object-Oriented Programming (OOP) principles
• Hands-on experience in building solutions for financial domain
• At least an Upper-Intermediate level of English (spoken and written)

Would be a plus:

• Experience with MLOps solutions
• Basic understanding of Big Data concepts
• Experience in classical Computer Vision algorithms
• Participation in Kaggle competitions

Your tasks will include:

• Full-cycle data science projects
• Data analysis and data preparation
• Development of NLP/Deep Learning / Machine Learning; Developing models and deploying them to production
• Sometimes, this will require the ability to implement methods from scientific papers and apply them to new domains

We offer:

• Delivering high-end software projects that address real-world problems
• Surrounding experts who are ready to move forward professionally
• Professional growth plan and team leader support
• Taking ownership of R&D and socially significant projects
• Participation in worldwide tech conferences and competitions
• Taking part in regular educational activities
• Being a part of a multicultural company with a fun and lighthearted atmosphere
• Working from anywhere with flexible working hours
• Paid vacation and sick leave days

Join Quantum and take a step toward your data-driven future.

Quantum is a global technology partner delivering high-end software products that address real-world problems.

We advance emerging technologies for outside-the-box solutions. We focus on Machine Learning, Computer Vision, Deep Learning, GIS, MLOps, Blockchain, and more.

Here at Quantum, we are dedicated to creating state-of-art solutions that effectively address the pressing issues faced by businesses and the world. To date, our team of exceptional people has already helped many organizations globally attain technological leadership.

We constantly discover new ways to solve never-ending business challenges by adopting new technologies, even when there isn’t yet a best practice. If you share our passion for problem-solving and making an impact, join us and enjoy getting to know our wealth of experience!

About the position

Quantum is expanding the team and has brilliant opportunities for a Software Developer. The client is a technological research company that utilizes proprietary AI-based analysis and language models to provide comprehensive insights into global stocks in all languages. Our mission is to bridge the knowledge gap in the investment world and empower investors of all types to become “super-investors.”

Through our generative AI technology implemented into brokerage platforms and other financial institutions’ infrastructures, we offer instant fundamental analyses of global stocks alongside bespoke investment strategies, enabling informed investment decisions for millions of investors worldwide.

Must have skills:

• 7 years of Python development experience
• Strong hands-on experience with Kubernetes and containerization
• Strong SQL and NoSQL database knowledge
• Experience with Docker, CI/CD, and Git
• Expertise in AWS services
• Familiarity with Airflow or other workflow orchestration tools
• At least an Upper-Intermediate level of English (spoken and written)

Would be a plus:

• Experience with LLMs (Large Language Models)

Your tasks will include:

• Develop and maintain services with LLM-based solutions
• Optimize ETL processes and integrate models into production
• Deploy and manage pipelines on AWS
• Work with Kubernetes for container orchestration
• Collaborate with Data Scientists to ensure pipeline efficiency

We offer:

• Delivering high-end software projects that address real-world problems
• Surrounding experts who are ready to move forward professionally
• Professional growth plan and team leader support
• Taking ownership of R&D and socially significant projects
• Participation in worldwide tech conferences and competitions
• Taking part in regular educational activities
• Being a part of a multicultural company with a fun and lighthearted atmosphere
• Working from anywhere with flexible working hours
• Paid vacation and sick leave days

Join Quantum and take a step toward your data-driven future.

Quantum is a global technology partner delivering high-end software products that address real-world problems.

We advance emerging technologies for outside-the-box solutions. We focus on Machine Learning, Computer Vision, Deep Learning, GIS, MLOps, Blockchain, and more.

Here at Quantum, we are dedicated to creating state-of-art solutions that effectively address the pressing issues faced by businesses and the world. To date, our team of exceptional people has already helped many organizations globally attain technological leadership.

We constantly discover new ways to solve never-ending business challenges by adopting new technologies, even when there isn’t yet a best practice. If you share our passion for problem-solving and making an impact, join us and enjoy getting to know our wealth of experience!

About the position

Quantum is expanding the team and has brilliant opportunities for an Automation QA Engineer. The client is a technological research company that utilizes proprietary AI-based analysis and language models to provide comprehensive insights into global stocks in all languages. Our mission is to bridge the knowledge gap in the investment world and empower investors of all types to become “super-investors.”

Through our generative AI technology implemented into brokerage platforms and other financial institutions’ infrastructures, we offer instant fundamental analyses of global stocks alongside bespoke investment strategies, enabling informed investment decisions for millions of investors worldwide.

Must have skills:

• 2–3 years in automation testing for backend systems and APIs
• Python skills for writing test scripts and frameworks
• Hands-on experience with Jenkins or similar CI/CD tools
• Proficient with cloud platforms (AWS, GCP, or Azure)
• Skilled in testing REST APIs and asynchronous services
• Solid knowledge of QA methodologies, test design, and SDLC
• Experience testing data projects and data science pipelines
• At least an Upper-Intermediate level of English (spoken and written)

Would be a plus:

• Background in financial systems, investment platforms, or fintech is a plus
• Experience in automation testing of chatbot based applications
• Experience with Docker and Kubernetes

Your tasks will include:

• Develop and maintain automated test scripts and frameworks for backend systems and APIs, using Python
• Design and execute automated tests for REST APIs and asynchronous services to ensure system reliability and accuracy
• Perform performance and load testing to validate system behavior under high-load conditions
• Collaborate with DevOps teams to integrate automated tests within CI/CD pipelines using Jenkins or similar tools
• Test and validate cloud-based solutions across platforms such as AWS, GCP, or Azure
• Conduct end-to-end testing of data projects and data science pipelines, including verification of data quality, data transformations, and ML model outputs

We offer:

• Delivering high-end software projects that address real-world problems
• Surrounding experts who are ready to move forward professionally
• Professional growth plan and team leader support
• Taking ownership of R&D and socially significant projects
• Participation in worldwide tech conferences and competitions
• Taking part in regular educational activities
• Being a part of a multicultural company with a fun and lighthearted atmosphere
• Working from anywhere with flexible working hours
• Paid vacation and sick leave days

Join Quantum and take a step toward your data-driven future.

We’re hiring a Symfony Developer who’s more than just a coder—you’re a product thinker who understands how features should work from a business and user perspective.
 

This is a full-time, fully focused role. If you're looking for a side gig or part-time work, this isn't the right fit.

Our product (BookingAgentInfo.com) connects businesses with celebrities and influencers for endorsements, brand partnerships, and event bookings. We’re growing fast and the main focus for whoever we hire will be to rebuild our current application. We h We’re also integrating AI features that enhance our internal workflows and user experience.

What You’ll Do

• Refactor and improve our Symfony codebase for performance and maintainability
• Build features with a strong understanding of business logic and user needs
• Translate product requirements into smart data relationships and clean architecture
• Test your work like a real user—there’s no dedicated QA team
• Collaborate closely with the CEO and team to shape the product
   

What We’re Looking For

• Expert Symfony skills (Symfony 4.4+ and Doctrine)
• Product mindset—you care about how things work and why
• Strong database design skills (MySQL or similar)
• Able to work independently, move fast, and take ownership
• Comfortable with basic frontend (HTML, CSS, JS framework like Vue or React)
• Fluent in English, with at least 4 hours overlap with 9 AM–6 PM EST

Biosphere Corporation is one of the largest producers and distributors of household, hygiene, and professional products in Eastern Europe and Central Asia (TM Freken BOK, Smile, Selpak, Vortex, Novita, PRO service, and many others). We are inviting an IT Infrastructure Administrator to join our team.

Key responsibilities:

• Administration of Active Directory
• Managing group policies
• Managing services via PowerShell
• Administration of VMWare platform
• Administration of Azure Active Directory
• Administration of Exchange 2016/2019 mail servers
• Administration of Exchange Online
• Administration of VMWare Horizon View

Required professional knowledge and skills:

• Experience in writing automation scripts (PowerShell, Python, etc.)
• Skills in working with Azure Active Directory (user and group creation, report generation, configuring synchronization between on-premise and cloud AD)
• Skills in Exchange PowerShell (mailbox creation, search and removal of emails based on criteria, DAG creation and management)
• Experience with Veeam Backup & Replication, VMWare vSphere (vCenter, DRS, vMotion, HA), VMWare Horizon View
• Windows Server 2019/2025 (installation, configuration, and adaptation)
• Diagnostics and troubleshooting
• Working with anti-spam systems
• Managing mail transport systems (exim) and monitoring systems (Zabbix)

We offer:

• Interesting projects and tasks
• Competitive salary (discussed during the interview)
• Convenient work schedule: Mon–Fri, 9:00–18:00; partial remote work possible
• Official employment, paid vacation, and sick leave
• Probation period — 2 months
• Professional growth and training (internal training, reimbursement for external training programs)
• Discounts on Biosphere Corporation products
• Financial assistance (in cases of childbirth, medical treatment, force majeure, or circumstances caused by wartime events, etc.)

Office address: Dnipro, Zaporizke Highway 37 (Right Bank, Topol-1 district).

Learn more about Biosphere Corporation, our strategy, mission, and values at:
http://biosphere-corp.com/
https://www.facebook.com/biosphere.corporation/

Join our team of professionals!

By submitting your CV for this vacancy, you consent to the use of your personal data in accordance with the current legislation of Ukraine.
If your application is successful, we will contact you within 1–2 business days.

Kyivstar.Tech is seeking an experienced Senior Data Scientist / NLP Lead to spearhead the development of cutting-edge natural language processing solutions for our Ukrainian LLM project. You will lead our NLP team in designing, implementing, and deploying large-scale language models and NLP algorithms that power our products. This role is critical to our mission of advancing AI in the Ukrainian language context, and offers the opportunity to drive technical decisions, mentor a team of data scientists, and shape the future of AI capabilities in Ukraine.

About us

Kyivstar.Tech is a Ukrainian hybrid IT company and a resident of Diia.City.

We are a subsidiary of Kyivstar, one of Ukraine's largest telecom operators.

Our mission is to change lives in Ukraine and around the world by creating technological solutions and products that unleash the potential of businesses and meet users' needs.

Over 500+ KS.Tech specialists work daily in various areas: mobile and web solutions, as well as design, development, support, and technical maintenance of high-performance systems and services.

We believe in innovations that truly bring quality changes and constantly challenge conventional approaches and solutions. Each of us is an adherent of entrepreneurial culture, which allows us never to stop, to evolve, and to create something new.

What you will do 

• Lead end-to-end development of NLP and LLM models - from data exploration and model prototyping to validation and production deployment. This includes designing novel model architectures or fine-tuning state-of-the-art transformer models (e.g. BERT, GPT) to solve project-specific language tasks.

• Analyze large text datasets (Ukrainian and multilingual corpora) to extract insights and build robust training datasets. Guide data collection and annotation efforts to ensure high-quality data for model training.

• Develop and implement NLP algorithms for a range of tasks such as text classification, named entity recognition, semantic search, and conversational AI. Stay up-to-date with the latest research to apply transformer-based models, embeddings, and other modern NLP techniques in our solutions.

• Establish evaluation metrics and validation frameworks for model performance, including accuracy, factuality, and bias. Design A/B tests and statistical experiments to compare model variants and validate improvements.

• Deploy and integrate NLP models into production systems in collaboration with engineers - ensuring models are scalable, efficient, and well-monitored in a real-world setting. Optimize model inference and troubleshoot issues such as model drift or data pipeline bottlenecks.

• Provide technical leadership and mentorship to the NLP/ML team. Review code and research, uphold best practices in ML (version control, reproducibility, documentation), and foster a culture of continuous learning and innovation.

• Collaborate cross-functionally with product managers, software engineers, and MLOps engineers to align NLP solutions with product goals and infrastructure capabilities. Communicate complex data science concepts to stakeholders and incorporate their feedback into the model development process.

Qualifications and experience needed 

Education & Experience:

• 5+ years of experience in data science or machine learning, with a strong focus on NLP.

• Proven track record of developing and deploying NLP or ML models at scale in production environments.

• Advanced degree (Master’s or PhD) in Computer Science, Computational Linguistics, Machine Learning, or a related field is highly preferred.

NLP Expertise:

• Deep understanding of natural language processing techniques and algorithms.

• Hands-on experience with modern NLP approaches, including embedding models, text classification, sequence tagging (NER), and transformers/LLMs.

• Deep understanding of transformer architectures and knowledge of LLM training and fine-tuning techniques, hands-on experience developing solutions on LLM, and knowledge of linguistic nuances in Ukrainian or other languages.

Advanced NLP/ML Techniques:

•Experience with evaluation metrics for language models (perplexity, BLEU, ROUGE, etc.) and with techniques for model optimization (quantization, knowledge distillation) to improve efficiency.

•Background in information retrieval or RAG (Retrieval-Augmented Generation) is a plus for building systems that augment LLMs with external knowledge.

ML & Programming Skills:

•Proficiency in Python and common data science libraries (pandas, NumPy, scikit-learn).

•Strong experience with deep learning frameworks such as PyTorch or TensorFlow for building NLP models.

•Ability to write efficient, clean code and debug complex model issues.

Data & Analytics:

• Solid understanding of data analytics and statistics.

• Experience in experimental design, A/B testing, and statistical hypothesis testing to evaluate model performance.

• Experience in building a representative benchmarking framework given business requirements for LLM.

• Comfortable working with large datasets, writing complex SQL queries, and using data visualization to inform decisions.

Deployment & Tools:

• Experience deploying machine learning models in production (e.g., using REST APIs or batch pipelines) and integrating with real-world applications.

• Familiarity with MLOps concepts and tools (version control for models/data, CI/CD for ML).

• Experience with cloud platforms (AWS, GCP, or Azure) and big data technologies (Spark, Hadoop) for scaling data processing or model training is a plus.

• Hands-on experience with containerization (Docker) and orchestration (Kubernetes) for ML, as well as ML workflow tools (MLflow, Airflow).

Leadership & Communication:

• Demonstrated ability to lead technical projects and mentor junior team members.

• Strong communication skills to convey complex ML results to non-technical stakeholders and to document methodologies.

A plus would be 

LLM training & evaluation experience:

• Experience with tokenizer development, SFT, and RLHF techniques.

• Knowledge of model safety: toxicity, hallucinations, ethical considerations, and LLM guardrails.

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) indicating a passion for staying at the forefront of the field.

Domain & Language Knowledge:

• Familiarity with the Ukrainian language and cultural context for model training and evaluation.

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.

Problem-Solving:

• Creative mindset for tackling open-ended AI challenges.

• Comfort in fast-paced R&D environments with evolving priorities.

What we offer

• Office or remote — it’s up to you. You can work from anywhere, and we will arrange your workplace.

• Remote onboarding.

• Performance bonuses.

• 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.

Skylum allows millions of photographers to make incredible images faster. Our award-winning software automates photo editing with the power of AI yet leaves all the creative control in the hands of the artist.
Join us on our mission to make photo editing enjoyable, easy, and accessible to anyone. You’ll be developing products with innovative technologies, providing value and inspiration for customers, and getting inspired in return.

Thanks to our incredible team of experts, we’ve built a collaborative space where you can constantly develop and grow in a supportive way. At the same time, we believe in the freedom to be creative. Our work schedule is flexible, and we trust you to give your best while we provide you with everything you need to make work hassle-free. Skylum is proud to be a Ukrainian company, and we stand with Ukraine not only with words but with actions. We regularly donate to various organizations to help speed up the Ukrainian victory.

Requirements:

• Design and develop scalable backend services using PHP 7 / 8.
• Strong understanding of OOP concepts, design patterns, clean code principles,
• Extensive experience in MySQL, with expertise in database design, query optimization, and indexing.
• Experience of work with NoSQL databases (e.g., Redis).
• Proven experience working on high-load projects
• Understanding of ETL processes and data integration
• Experience of work with ClickHouse
• Strong experience with API development
• Strong knowledge of Symfony 6+, yii2
• Experience with RabbitMQ

Nice to Have:

• AWS services
• Payment API (Stripe, SolidGate etc.)
• Docker, GitLab CI
• Python

Responsibilities:

• Data Integration & ETL: Developed and maintained robust ETL pipelines using PHP to process and integrate data from diverse sources.
• API Development: Built and managed secure RESTful APIs to facilitate seamless data exchange between internal and external systems.
• Database Management: Optimized databases and data lakes, including schema design, complex query writing, and performance tuning.
• Data Quality: Implemented data validation and error-handling mechanisms to ensure data integrity and accuracy.
• Cross-Functional Collaboration: Partnered with data analysts and business teams to gather requirements and support data-driven initiatives.

What we offer:

For personal growth:

• A chance to work with a strong team and a unique opportunity to make substantial contributions to our award-winning photo editing tools;
• An educational allowance to ensure that your skills stay sharp;
• English and German classes to strengthen your capabilities and widen your knowledge.

For comfort:

• A great environment where you’ll work with true professionals and amazing colleagues whom you’ll call friends quickly;
• The choice of working remotely or in our office space located on Podil, equipped with everything you might need for productive and comfortable work.

For health:

• Medical insurance;
• Twenty-one days of paid sick leave per year;
• Healthy fruit snacks full of vitamins to keep you energized

For leisure:

• Twenty-one days of paid vacation per year;
• Fun times at our frequent team-building activities.

Seeking a React Native developer to join our mission of creating mobile apps that don't suck - someone who writes clean code, loves mobile UX, and wants to build products that users actually enjoy.

Required skills:

• Proficient in TypeScript, JavaScript
• Experience with REST APIs and WebSocket.
• Familiarity with Redux or other state management solutions.
• Experience with Redux Toolkit or Redux Saga.
• Knowledge of Realm or other database systems.
• Experience with Git for version control.

Would be a plus:

• Experience in publishing mobile applications in Google Play and AppStore
• Experience with event-driven systems
• Basic knowledge of CI/CD (Fastlane/CircleCI)
• Experience with managing cloud-based (AWS, Google Cloud, Azure etc.) 

• Experience with debugging tools (Flipper, Reactotron)

   

Responsibilities:

• Design & implement a cross-platform mobile application;
• Writing clean and solid code;
• Sharing experience with a team members
• Promote good design principles such as code reuse, modularity, and extensibility.

We offer:

•  Young and friendly team
•  Fully remote work
•  Flexible schedule
•  4 calendar weeks of paid vacation
•  10 days of paid sick leave
•  Corporate events and team buildings
•  English classes

Good luck! See you in our team!

Octy