Jobs at Djinni

About us:
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:
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 looking for an experienced Senior Data Scientist / NLP Lead to spearhead the development of cutting-edge natural language processing solutions for the Ukrainian LLM project. You will lead the NLP team in designing, implementing, and deploying large-scale language models and NLP algorithms that power the products.

This role is critical to the 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.
 

Requirements:
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.
- An 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 on how to build 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 clearly.

Responsibilities:
- 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 the 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 model development.

The company offers:
- Competitive salary.
- Equity options in a fast-growing AI company.
- Remote-friendly work culture.
- Opportunity to shape a product at the intersection of AI and human productivity.
- Work with a passionate, senior team building cutting-edge tech for real-world business use.

We are seeking a highly skilled PHP Developer for our Fintech client to join team in Valencia, Spain

Specializing in building and maintaining robust, high-performance web applications. If you have a strong background in Symfony, MySQL 8.0, Redis, MongoDB, and experience managing high-load and big data projects

Responsibilities:

• Develop, test, and maintain web applications using PHP and Symfony.
• Design and optimize complex databases, primarily MySQL 8.0, ensuring high performance and scalability.
• Work with MongoDB for managing and optimizing unstructured data storage.
• Integrate and manage message queues using RabbitMQ for asynchronous processes.
• Utilize AWS cloud services (EC2, S3, RDS, etc.) to deploy and manage applications in a scalable, secure environment.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Identify and resolve performance bottlenecks and bugs.
• Ensure the best possible performance, quality, and responsiveness of applications.
• Stay updated with the latest industry trends and technologies to bring innovative solutions to the team.

Requirements:

• Proven experience as a PHP Developer with a deep understanding of the Symfony framework.
• Expertise in MySQL 8.0, including performance optimization, indexing, and query optimization.
• Experience with message queue systems, particularly RabbitMQ.
• Hands-on experience with AWS services and infrastructure.
• Solid understanding of high-load and big data application development.
• Strong analytical and problem-solving skills, with a keen eye for detail.

Preferred Qualifications:

• Experience with containerization and orchestration tools (Docker, Kubernetes).
• Previous experience in a DevOps environment.
• Understanding of front-end technologies (JavaScript, React, Vue.js) is a plus.

About the Project:
We are building an AI-based tool, similar to ChatGPT but with enhanced capabilities, available on web and mobile platforms. This is an exciting opportunity to work on a cutting-edge product from scratch and ensure top-quality user experience across all platforms.

Role Overview:
As an Automation QA Engineer, you will be responsible for creating, maintaining, and executing automated tests for both web and mobile versions of the product. You will cover critical flows starting from smoke tests, ensuring stability and reliability of the platform as it scales.

Required Skills & Experience:

• Minimum 1 year of experience in QA automation.
• Hands-on experience with web automation (Selenium, Playwright, Cypress, or similar).
• Hands-on experience with mobile automation (Appium, Espresso, XCUITest, or similar).
• Intermediate English, both spoken and written.
• Understanding of CI/CD pipelines and integrating automated tests.
• Knowledge of test design, test case writing, and bug reporting.

Responsibilities:

• Develop and maintain automation test suites for web and mobile applications.
• Implement and execute smoke, regression, and functional tests from scratch.
• Collaborate closely with developers and product managers to understand requirements and features.
• Ensure test coverage, reliability, and maintainability of automation frameworks.
• Provide clear reports on test results, defects, and quality metrics.
• Contribute to continuous improvement of testing processes and tools.

Nice-to-Have:

• Experience with cross-platform testing strategies.
• Familiarity with cloud device farms (BrowserStack, SauceLabs).
• Exposure to API testing and automation.

What We Offer:

• Opportunity to work on a high-impact AI project.
• Collaborate with a skilled and supportive team of engineers and QA professionals.
• Professional growth and exposure to cutting-edge technologies.
• Flexible remote work.
• Paid sick leaves 
• Paid vacations 
• Paid english classes 
• Legal support 

Please, note that this position is for a contract-based cooperation, not an inhouse one. That means, the social package, like paid vacations, days off, public holidays, sick leaves, equipment, and accounting, is not covered.

We are looking for a Senior Business Analyst to join two projects from our client and manage them simultaneously.

Timeline of cooperation: till the end of October/November with the possibility of prolongation.
Expected Working Hours: 8 am — 5 pm (one-hour break) Kyiv time.
Team: Project Director, Product Manager, UI and UX Leads, Content team, Development team

Project #1 Description: The UAE’s integrated textile circularity initiative. Acting as a convener — not a service provider — it brings together government, retailers, charities, and recyclers to make reuse, repair, and recycling simple for people and organizations, while driving awareness, enabling policy and innovation, and publishing transparent impact data.
Platform: website, Discovery phase is finished.

Project #2 Description: Unique family hub — not a nursery or school — created to strengthen connections between parents and children through guided, sensory-focused experiences that also include grandparents. Opening soon, our hub will feature around eight age-specific programs for families with children from newborns to 8 years old. Each session is one-on-one and facilitated by a trained guide, emphasizing a human-led approach rather than AI-driven experiences.
Platform: website, landing page.

Skills required

• Proficiency in requirements gathering techniques (interviews, workshops, surveys).
• Proficiency in Jira.
• Strong documentation and specification writing abilities.
• Experience with user story creation and acceptance criteria development.
• Excellent interpersonal and communication skills.
• Experience facilitating workshops and stakeholder meetings.
• Market research and competitive analysis capabilities.
• Experience with backlog management and prioritization techniques.

Responsibilities:

• Conduct stakeholder interviews and requirements-gathering sessions.
• Analyze business needs and translate them into clear, actionable requirements.
• Create detailed product specifications.
• Define and prioritize product and team backlogs.
• Translate product strategy into epics and user stories with acceptance criteria.
• Act as liaison between business stakeholders and development teams.
• Support product strategy development and roadmap planning.
• Support User Acceptance Testing (UAT) and quality assurance activities.

GR8 Tech is a leading B2B provider of iGaming solutions that empowers operators to grow, lead, and win.

We deliver high-impact, full-cycle tech solutions designed to scale. From seamless integration and expert consulting to long-term operational support, our platform powers millions of active players and drives real business growth. It's more than just a product — it's the iGaming Platform for Champions, built for those who play to lead.

We know the game and how to take it to the next level. With 1000+ talented professionals on board, we don't just build tech — we build success stories for iGaming operators all over the world.

Our ambition drives us, our people make it real. Join us and be part of building champion-level success!

What You'll Be Driving: 

 

• Developing a user interface and logic for the GR8 Tech lightweight frontend solution (GR8 Light);
• Participating in the development of software architectural solutions (create ADRs with the team, propose solutions and promote them);
• Supporting full development cycle (from accepting technical requirements from PO, code reviewing to delivering changes to production);
• Closely communicating with product managers, providing the best solutions and influencing the product;
• Learning new things, new technologies, developing as a professional. 
  
   

What Makes You a GR8 Fit:

 

• Working experience with commercial projects over 3 years;
• Strong knowledge of C#; Proficiency with ASP.NET Razor;
• Proven knowledge of JavaScript Core, ES6+, HTML5, CSS3;
• Knowledge of software design patterns, oop/functional programming;
• Experience with microservice architecture;
• Upper-Intermediate English level;
• Knowledge of Git flow and GitLab, JIRA, Confluence;
• Knowledge of CI/CD, Docker;
• Proficiency in working with build tools (Webpack, Rollup);
• Familiarity with REST API; Experience with config management and distribution.
  
   

Why You'll Love Working Here:

Benefits Cafeteria

An annual fixed budget that you can use based on your needs and lifestyle. You decide how to allocate it:

 

• Sports – gym, yoga, or any activity to keep you active;
• Medical – insurance and wellness services;
• Mental health– therapy or coaching support;
• Home office – ergonomic furniture, gadgets, and tools;
• Languages – courses to improve or learn new skills.
  
   

Work-life 

 

• Parental support with paid maternity/paternity leave and monthly childcare allowance;
• 20+ vacation days, unlimited sick leave, and emergency time off;
• Remote-first setup with full tech support and coworking compensation;
• Regular team events – online, offline, and offsite;
• Learning culture with internal courses, career development programs, and real growth opportunities.
  
   

Our Culture & Core Values

GR8 Tech culture is how we win. Behind every bold idea and breakthrough is a foundation of trust, ownership, and a growth mindset. We move fast, stay curious, and always keep it real, with open feedback, room to experiment, and a team that's got your back.

 

• FUELLED BY TRUST: we're open, honest, and have each other's backs;
• OWN YOUR GAME: we take initiative and own what we do;
• ACCELER8: we move fast, focus smart, and keep it simple;
• CHALLENGE ACCEPTED: we grow through challenges and stay curious;
• BULLETPROOF: we're resilient, ready, and always have a plan.

We are elai.io, an innovative AI-driven startup specializing in video generation. Recently acquired by Panopto — a leader in interactive video solutions — we’re now part of a growing team of around 200 professionals focused on advancing learning through powerful, interactive video technology.

We are looking for a Visual & UX Designer to strengthen our design system and ensure all digital experiences meet the highest standards of visual quality, consistency, and accessibility. In this role, you will refine and expand our design system, build reusable and scalable components, and establish clear guidelines that empower both designers and engineers. Your work will directly support our goal of delivering cohesive, user-friendly, and WCAG 2.1 AA—compliant experiences while improving efficiency across product teams.

Must-have skills

• Expert-level visual design expertise (UI, typography, color, layout)
• Proven experience creating and maintaining design systems
• Strong knowledge of accessibility standards (WCAG 2.1 AA)
• Excellent documentation and communication skills

Key responsibilities

• Refine, expand, and maintain the design system in Figma, ensuring reusable and scalable components
• Document design guidelines, accessibility checklists, and usage standards to drive consistency across teams
• Create and deliver visual assets such as icons, illustrations, patterns, and motion guidelines when needed
• Collaborate closely with developers to ensure pixel-perfect implementation of designs
• Support product teams by ensuring alignment with brand, usability, and accessibility standards

Project details

• Project end date: 9 months from start
• Estimated weekly hours: 30-40 hours/week

We offer

• Competitive salary based on qualifications and contributions
• Paid vacation and sick leaves
• Flexible working hours
• Opportunity to work with a highly qualified international, friendly team
• Fully remote work

While applying, please be ready to present a portfolio showcasing relevant design skills and projects!

Freelance / Contract

To accelerate our internal developments, we are looking for a Full-Stack Developer (freelancer or contractor) with solid expertise in Python and React. You will work closely with our in-house team to build and improve web applications that integrate with our existing platforms.

📍 Location: Remote, collaborating with our in-house team in Milan
📅 Start: Ideally October (flexible)
📆 Duration: 3 months probation period and long term if the probation is successful
💼 Engagement Type: B2B Contract / Freelance

If the collaboration is successful, this temporary position may evolve into a longer-term partnership.

Responsibilities

Data Management Web App (React / MUI)

• Rebrand and refactor the existing application.
• Add new pages and components to expose API functionalities to users.
• Package core functionalities (e.g., login, page templates) for reuse across other web apps.

Customer Operations Web App (React / MUI / Python)

• Develop a base web app framework, leveraging work done on the Data Management app.
• Integrate existing API functionalities for device configuration editing.
• Extend APIs to support customer platform configuration.
• Build UI components for platform configuration management.
• Support deployment of configuration changes to the platform.

Required Skills

• React: Proven experience building user interfaces with React.
• Material UI (MUI): Skilled in designing responsive, modern web applications.
• Python / FastAPI: Strong backend development expertise.
• Test-Driven Development (TDD): Hands-on experience with testing best practices.
• High attention to detail and code quality.

Preferred Skills

• Experience designing and building web applications from scratch.
• Structured and organized approach to project work.
• Strong communication and collaboration skills.
• Experience creating and maintaining APIs for seamless integration

⭐️ Nice to Have

• Basic understanding of power systems
• Experience with Jupyter Notebooks
• Knowledge of Italian (helpful for collaboration with the Milan team)

If this sounds like something you could help with — we’d love to hear from you!

About Rentberry
Rentberry is the first global AI-powered home rental platform that streamlines the long-term rental process, offering a fully digital, all-in-one rental ecosystem. We are a fast-growing startup with a remote-first, startup-style work environment — minimal bureaucracy and high autonomy for team members.

We’re looking for a passionate Email Marketing & Deliverability Specialist to join our team. In this hybrid role, you’ll set up and maintain our email infrastructure to ensure top deliverability while also creating and executing effective marketing campaigns.

What You’ll Do

Email Deliverability & Infrastructure

• Review and audit the current email infrastructure setup.
• Set up and maintain email sending infrastructure from scratch (SMTP servers, Mailgun, SendGrid, Amazon SES, Postmark, etc.).
• Configure and monitor SPF/DKIM/DMARC records, manage IP/domain reputation, and handle warm-ups.
• Troubleshoot deliverability issues (blacklists, spam traps, bounce handling).
• Track inbox placement, spam complaints, and other key deliverability metrics.
  
   

Email Marketing

• Develop and execute campaigns (newsletters, triggers, automated flows).
• Segment audiences, personalize communication, and run A/B tests.
• Ensure compliance with GDPR, CAN-SPAM, and other global email regulations.
• Analyze performance (open rate, CTR, conversions) and optimize campaigns.
  
   

What We’re Looking For

• 2+ years of experience in email deliverability and/or marketing.
• Strong technical expertise with sending platforms (HubSpot, Mailchimp/Mandrill, Mailgun, SendGrid, Amazon SES, Postmark).
• Solid knowledge of email authentication protocols (SPF, DKIM, DMARC), feedback loops, and sender reputation management.
• Experience with DNS zone providers (GoDaddy, Cloudflare, Amazon Route 53).
• Basic HTML/CSS skills for troubleshooting email templates.
• Understanding of multi-channel marketing (SMS, push, WhatsApp).
• Hands-on experience running and optimizing large-scale email campaigns (10k–1M+ sends).
• Upper-Intermediate English with strong written and verbal communication skills.
• Proactive, independent, and detail-oriented mindset.
  
   

What We Offer

• Fully remote work with a flexible schedule.
• Startup culture: fast decisions, minimal bureaucracy.
• Competitive salary with growth opportunities.
• Paid vacation & sick leave.
• Bonuses for achieving company milestones.
• Opportunity to build and optimize Rentberry’s email program end-to-end and see your work impact a global audience.

Responsibilities:

- Search for potential clients in all relevant channels (conferences, cold marketing, etc.)

- Independent initial brand assessment

- Identification and assessment of potential and expressed customer needs

- Conducting pre-sale presentations

- Organizing meetings between potential customers and specialists from the relevant team

- Reporting

- Budgeting (need to decide if necessary)

Requirements:

- Experience in selling SEO services (must be in a digital/SEO/marketing agency).

- Deep understanding of what SEO is, what tasks it solves, and how results are measured.

- Understanding of the digital advertising market and basic metrics and advertising formats.

- Understanding of digital marketing metrics, numbers, and their connections.

- Experience working in the iGaming/Fintech/Crypto niche for 2+ years.

- Not on the operator (product) side.

- Understanding of how organic demand for a brand is formed.

- English C1+.

Will be a plus

- Developed networking in the field of digital marketing.

- Background as a buyer, SEO specialist

- Proficiency in languages other than RU/EN

- Ability to teach colleagues, delegate

Tech Stack:

CRM

Email / Linkedin / etc Automation

AI Tools

Analytics / Research tools (Ahrefs/Similarweb)

Spy Services

OSINT

Google Spreadsheets / Docs

About Us:

Relevant Software is a dynamic and innovative software development company committed to delivering cutting-edge solutions in Ukraine. We thrive on a culture of collaboration and innovation, encouraging our team to bring their creativity and expertise to the table. As we expand our operations, we are looking for a talented and experienced Business Development Manager to play a key role in our growth.

Main Responsibilities:

• Engage with inbound and outbound leads, conducting introductory calls and performing initial client qualification.
• Identify the client’s primary needs and goals, present the company’s offerings, and coordinate the entire sales process from the initial contact to deal closure, ensuring a seamless client experience.
• Collaborate with the pre-sales team to develop tailored proposals, selecting the best solutions based on the client’s goals, requirements, timeline, and budget.
• Effectively manage sales negotiations by utilizing strategies such as creating urgency, establishing deadlines, and offering limited-time deals to secure agreements and close deals efficiently.
• Build and maintain relationships with leads throughout the sales cycle, providing valuable insights, addressing concerns, and keeping them engaged until they are ready to convert into customers.
• Regularly update and maintain accurate client information in CRM systems, ensuring proper tracking of leads, opportunities, and communications.
• Work closely with other teams to ensure effective lead generation, smooth project execution, and a seamless client onboarding experience, fostering long-term relationships with clients.

Requirements:

• Proven experience as a Business Development Manager, Engagement Manager, Sales Manager, or a related field in the IT outsourcing services company – 3 years.
• Demonstrated success in consistently achieving and exceeding sales targets, with a history of delivering results.
• In-depth knowledge of the sales process from lead generation, nurturing leads, to securing successful software development deals.
• Ability to identify and address client needs with tailored presentations and solutions. 
• Strong understanding of the SMB sales process, including its complexities and challenges. 
• Proven proficiency in negotiating and closing high-value, complex deals.
• Strategic thinker with an in-depth understanding of the software development landscape and the ability to spot new business opportunities.
• Proficient in using CRM software and other relevant tools to manage sales activities and monitor progress.
• Ability to work independently, demonstrating self-motivation, confidence, and a results-oriented approach to negotiations.
• Previous experience in FinTech or HealthTech sectors would be a significant advantage.
• Advanced English proficiency 
• Flexibility to travel internationally for client meetings, as needed.

We offer:

• Competitive compensation based on your skills, experience, and performance.
• 20 working days of annual paid vacation and 5 days of sick leave.
•  3 additional days off for special occasions.
•  Experienced colleagues with 85% of middle and senior engineers.
•  Possibility to work from anywhere in the world.
•  Exciting projects involving the newest technologies.
•  Accounting as a service.
•  Flexible working approach.

Requirements:

• Flutter — 4+ years of commercial experience in real-world projects.
• Dart — deep knowledge, including async/await and isolates.
• State Management: Cubit (Bloc).
• REST API: Dio, OAuth 2.0 (refresh token via interceptor).
• Firebase: Push Notifications, App Distribution.
• CI/CD: Bitrise → App Distribution → TestFlight + Google Play.
• UI: Advanced customization, adaptability (flutter_screenutil), animations.
• GIT: Pull requests, branching strategy.
• Dependency Injection (DI): get_it.
• Navigation: AutoRoute.
• Local Storage: SQL/NoSQL, preferably Realm, image caching.
• Analytics: Datadog.
• Localization: easy_localization.
• Environment Configuration: flutter_dotenv.
• Social Authentication: Google, Facebook, Apple.
• Release: iOS/Android signing + store submission.
• Deep Links: app_links.
• Password Autofill: iOS/Android.
• Platform Channels: MethodChannel / EventChannel.
  Knowledge of English — Upper Intermediate
   

💡 Nice to Have:

• Layered Architecture with clear implementation.
• Basic knowledge of native development (Android/iOS).
• Experience with Bluetooth, Camera, Geo, Background Services.
• Live streaming via WebSockets.
• React Native.
   

📋 Responsibilities:

• Developing Flutter applications from scratch or maintaining/scaling existing ones.
• Collaborating with designers, backend/frontend developers, QA, and occasionally with clients (in English).
• Participating in estimations, planning, and technical discussions.
• Scrum processes: daily stand-ups, refinement, retrospectives.
• Releasing apps in App Store Connect / Google Play Console with CI/CD automation (Bitrise).

🧩 Projects:

• Domains: Healthcare, Entertainment, Education/Support.
• Scale: Small to medium applications.
  
  What We Offer:
  🕒 Full-time role with flexible hours after probation.
  📚 Ongoing training and educational opportunities.
  📈 Performance reviews every 6 months.
  💵 Competitive salary in USD.
  🌴 21 paid vacation days.
  🤒 7 paid sick days (+15 for serious cases like COVID or surgery).
  🗓️ 10 floating public holidays.
  🎉 Online Team-building events & fun corporate activities.
  🚀 Projects across diverse domains (e-commerce, healthcare, fintech, etc.).
  🌍 Clients from the USA, Canada, and Europe.

• Project Description:

  A reference data technology team focusing on building a strategic data quality platform is looking for an individual to fulfill an senior developer/team lead working in a fast-paced environment. The person will be responsible for tuning and optimizing the Oracle database to increase the efficiency and performance of the web based application, as well as aiding in the development of the java and Angular web based applications. The individual will be working with other development teams and senior business analysts in order to develop the requirements and implement into the application.

• Responsibilities:

  - Leading the team of 5+ developers
  - Front-end and back-end development with focus on Angular based UI
  - Work well within a global team, spanning numerous time zones, with good communication skills both verbally and written. This includes the ability to provide suggestions and alternative solutions to other team members so that the most efficient and optimized solution can be implemented

• Mandatory Skills Description:

  - Team lead experience 3+ years
  - Good Angular skills
  - Good Core Java skills
  - Database Technologies (SQL, JDBC connections, Hibernate)
  - Spring framework
  - Building tools (e.g. Maven)
  - Performed Code review /peer review
  - Continuous integration systems
  - Knowledge of various design and architectural patterns
  - Upper intermediate English
  - Good communication
  - Good written skills

• Nice-to-Have Skills Description:

  - Java Performance tuning will be a plus
  - Advanced Oracle, PL/SQL, performance tuning
  - Linux / Unix Background
  - Experience in mentoring and guiding small teams/modules
  - Microservices

• Languages:
  • English: B2 Upper Intermediate

Uitop is a design & development team that helps B2B SaaS products feel simple, modern, and easy to use. We are now seeking a driven and creative Sales Development Representative on Upwork to join our team.

You’ll be the first to spot new opportunities by searching for potential clients on Upwork, validating job and writing tailored proposals, updating profiles, and crafting engaging messages that spark client interest and drive responses.

What you have:

• Knowledge of Upwork, search tools, bidding, boosting, and communication.
• Previous experience in pre-sales, sales, lead generation, SDR or outreach specialist positions on Upwork or similar tools.
• Ability to analyze a job post and independently validate a potential lead based on the company's ICP (stack, rate, etc.).
• Experience with Google Sheets.
• Intermediate English.
• Proactive, analytical thinker with the ability to work independently.
   

Responsibilities:

• Search for potential clients on the Upwork platform.
• Preliminary validation of the job post according to the company's criteria.
• Write proposals, update profiles; Writing a relevant letter to interest the client and get a response from him.
• Handling inbound leads and creating personalized proposals for potential clients
• Written communication with leads. Bidding on Upwork.
• Guiding leads to the call stage with our team.
   

Great to have, but not 100% necessary:

• Experience with Upwork boost profile feature.
• Experience with automation in which to configure job searches, bidding, proposal prompts.
• Experience in the B2B segment.
   

We provide:

• Vacation - 18 working days per year, 10 Sick Days.
• 50% coverage of English language courses/any kind of courses.
• Constant feedback, working with a mentor, support and assistance from other experienced employees.
• Long-term employment with a competitive salary.
• Performance & Salary review constantly.
• Financial compensation of coworking 100% (during blackouts).
• Flexible work schedule, remote.
   

If you’re curious, proactive, and ready to grow together with an ambitious team, we’d love to meet you.

We’re looking for a Senior PHP Developer from Ukraine to join our in-house software development team. As part of a cross-functional team, you’ll participate in developing scalable backend solutions and implementing new features that directly impact performance, security, and user experience.

If you`re interested in it, read more!

About the project: CentroBill is an information technology company that empowers global merchants to accept payments through debit cards, credit cards, and alternative payment methods. We offer a seamless integration with a variety of Credit Card Acquirers, Payment Service Providers, and Alternative Payment Methods through a unified API. At CentroBill, we are committed to providing seamless payment solutions to businesses worldwide. Our innovative technology and dedicated team help us stay at the forefront of the payment industry.

What you’ll be working on

• Collaborate with cross-functional teams, to define and implement innovative solutions that meet business requirements.
• Write clean, efficient, and maintainable code, following best practices for performance, security, and scalability.
• Participate in code reviews to ensure code quality and adherence to coding standards.
• Troubleshoot, diagnose, and resolve complex technical issues in a timely manner.
• Optimize existing systems and services for performance, stability, and maintainability.
• Keep up-to-date with the latest industry trends, technologies, and best practices in backend development.
• Work independently, managing your own tasks and priorities, while effectively communicating progress and any blockers to the team.

About you:

• 4 years work experience as a PHP developer; 
• Strong knowledge of PHP 8.1+ and modern language features (typed properties, attributes, enums, etc.);
• Experience with one or more PHP frameworks: Laravel (preferred) or Symfony;
• Solid understanding of OOP principles, SOLID, DRY, KISS;
• Ability to design and build RESTful;
• Proficient with relational databases (MySQL/PostgreSQL), including indexing and query optimization;
• Proficient with NoSQL databases (ElasticSearch, etc);
• Experience with queue systems (e.g., RabbitMQ, SQS);
• Confident use of Git, Composer, and Docker in daily workflow;
• Familiarity with automated testing tools (PHPUnit, etc.);
• Experience working with version control and CI/CD pipelines;
• Comfortable working in Agile/Scrum teams.

Nice to have:

• Experience with microservices architecture;
• Background in building or maintaining high-load systems;
• Skills in profiling and performance optimization of PHP code;
• Understanding of DevOps workflows: Docker Compose, Kubernetes, CI/CD (GitHub Actions, GitLab CI, etc.);
• Experience integrating external APIs, payment gateways, etc.

What We Value (Beyond Tech Skills):

• Ability to work independently and take ownership of features or components;
• Strong communication skills and willingness to participate in architectural discussions;
• Commitment to clean code and participation in code reviews;
• Attention to detail and a proactive attitude toward identifying and mitigating technical risks.

Why work with us? 

• Stable work with flexible working hours and hybrid work options;
• Work on a cool project that provides an opportunity for self-realization, and learning;
• Paid vacation days, sick days  and personal days;
• 50% paid English lessons courses;
• Medical insurance program;
• Friendly team, minimum bureaucracy and pleasant working atmosphere;
• Opportunities for career growth and development;
• Collaborative and inclusive work environment.

We look forward to receiving your application!

Job description

Infineon’s Power System IC (PSI) Software Development team is seeking a Principal Firmware Engineer to contribute to the design and development of embedded firmware for our advanced DC/DC power conversion ICs. If you have a strong foundation in embedded systems programming and are eager to learn and grow your skills, we’d love to hear from you. Apply now and join us in Lviv!

In this role, you will create control firmware for a family of MCU-based digital power controllers for various DC/DC power supply topologies. This will enable real-time control, configuration, and communication with external systems through serial protocols such as I2C, PMBus and UART.

In your new role, you will:
 

• Write and test embedded firmware for power IC applications using C
• Implement real-time control and configuration firmware for embedded systems
• Interface with serial communication protocols such as I2C, PMBus, and UART
• Conduct firmware development for peripherals such as ADC, DAC and communication interfaces
• Assist in debugging and validating embedded firmware with mixed-signal hardware in a lab environment
• Collaborate with hardware and software engineers to ensure seamless functionality
• Create and maintain documentation, including feature descriptions, user guides, and firmware design specifications
• Contribute to new ideas for firmware improvements and participate in code reviews to maintain quality standards

Your profile
You are a hands-on engineer with a strong interest in embedded firmware development. You coordinate effectively with colleagues, share insights proactively, and take initiative to overcome technical challenges. You have high standards and a commitment to continuous improvement.

You are best equipped for this task if you have:
 

• A bachelor’s or master’s degree in electrical engineering, Computer Science or similar
• At least 3 years of experience in embedded firmware development
• Experience in DC-DC power conversion systems, with basic understanding of mixed-signal systems (good to have)
• Proficiency in C programming for embedded systems, and familiarity with Python is a plus
• Familiarity with serial communication protocols such as I2C, UART, or PMBus and experience debugging firmware with hardware circuits
• Familiarity with version control systems (e.g., GIT) and debugging tools (e.g., JTAG) and bug tracking systems like JIRA is a plus
• Knowledge of bare-metal, RTOS environments, and device drivers is a plus
• Strong problem-solving and collaboration skills, as well as good communication skills in English

Please send us your CV in English