Jobs at Djinni

Position: Junior Flutter Developer

Responsibilities:

Develop mobile applications using Flutter according to specified requirements and design.

Participate in meetings and discussions with the team to understand project needs.

Test, debug, and optimize code to ensure high performance.

Apply SOLID principles in software design and development.

Actively learn new technologies and development methods.

Requirements:

Experience or projects using Flutter.

Proficiency in Dart.

Understanding of UI development principles and experience with Flutter widgets.

Basic skills in version control systems, such as Git.

Familiarity with SOLID principles in software design.

Experience working with APIs.

Willingness to learn and a commitment to professional growth in mobile development.

Strong communication skills and ability to work in a team.

Basic knowledge of English for understanding technical documentation.

Nice to have:

Knowledge of Android/iOS platforms and their peculiarities.

Understanding of architectural principles in applications.

Conditions:

Flexible working hours.

Remote work possibilities.

Also we have an internship for 1-2 months (if you need it)

If you are interested in our vacancy, please explain in your response why you want to work specifically with us.

This is a great opportunity for entry-level specialists. We look forward to receiving your responses and resumes.

Space Scutum is a leading company in the field of cybersecurity and antivirus software development. We invite students and graduates to intern with our company to provide them with a unique opportunity to gain practical experience in the innovative field of cybersecurity. This is a social project for newcomers/students aimed at providing them with the opportunity to gain important practical experience, which will serve as a catalyst for their future career in the IT industry. Preference is given to students/trainees from Ukraine.

During the internship, you will work closely with our highly skilled team of specialists, participate in real projects, and learn cutting-edge technologies in the field of cybersecurity. We will provide you with the opportunity to apply your knowledge in practice, develop skills, and gain valuable experience that will be useful for your future career.

Upon completion of the internship, we have the opportunity to offer employment to the most talented interns or we are ready to provide recommendations for finding work in other companies. We believe that an internship at Space Scutum will be an excellent start to your career in the IT industry and help you achieve success in this dynamic and promising field.

We are excited to welcome interns to our dynamic software testing team. As we seek passionate individuals to join us in shaping the quality of our software, we have outlined the following requirements for prospective interns:

Analytical Skills:

Ability to analyze software and identify potential issues.

Strong problem-solving skills to troubleshoot and debug applications.

Attention to Detail:

Thoroughness and attention to detail in executing test cases and documenting results.

Communication Skills:

Clear and concise communication to effectively report bugs and issues.

Collaborative communication with team members and developers.

Curiosity and Learning Agility:

Eagerness to learn new technologies and adapt to evolving testing methodologies.

Proactive approach to staying informed about industry trends and best practices.

Team Collaboration:

Ability to work well in a team environment and contribute positively to team dynamics.

Willingness to seek guidance and ask questions when needed.

Time Management:

Efficient time management skills to prioritize tasks and meet deadlines.

Adaptability:

Flexibility to adapt to changing project requirements and priorities.

Test Planning and Execution:

Understanding of test planning and execution processes.

Capability to design and execute test cases based on project requirements.

Documentation Skills:

Proficient in documenting test cases, test results, and test procedures.

Automation Familiarity (Optional):

Basic understanding of automated testing tools is a plus.

Passion for Quality:

A genuine interest in ensuring software quality and user satisfaction.

Professionalism:

Professional attitude and commitment to delivering high-quality work.

Join us and become a part of our team where you can unleash your potential, gain valuable experience, and contribute to ensuring user security.

If you are interested in this offer, please respond to this vacancy. Write about why you want to work with us. And what knowledge/skills do you have.

Thank you!

https://spacescutum.com/

Responsibilities

• Product Strategy: Define and execute product roadmaps aligned with business objectives, user needs, and company vision.
• Proactive Initiative Management: Proactively explore new opportunities to expand the product offering within the live-streaming ecosystem, driving innovation in a constantly evolving space.
• Feature Ownership: Oversee the full lifecycle of new features - from ideation and prioritization to specification and go-to-market execution.
• Data-Driven Decisions: Use data insights, user feedback, and industry trends to inform product decisions and enhance the user journey.
• Performance Monitoring: Define success metrics, track results, and iterate to continuously optimize product performance.
• Stakeholder Collaboration: Act as the central point of communication between business and technical teams, ensuring alignment and clear communication of priorities and goals.
• Production-Focused Execution: Adopt a "ship-to-production" mindset, prioritizing speed, impact, and quality in every release.

Requirements

• At least 5 years of experience in product management, ideally in fast-paced tech or consumer app environments.
• Proven track record of launching and scaling successful products that drove measurable business results.
• Strong analytical and strategic mindset, with the ability to make clear, data-informed decisions.
• Excellent communication, collaboration, and stakeholder management skills across disciplines.
• Full professional proficiency in English, both written and verbal.
• Hands-on experience with product analytics tools (e.g., Amplitude, Mixpanel, Looker).
• A plus: Experience in the gaming, social, or monetization industries, managing in-app purchases and virtual economies.

What we offer:

• International company with several offices in different locations : Tel-Aviv, Kyiv, Warsaw, Limassol.
• Granting an Option;
• A professional environment with great people to work with;
• Competitive salary, performance review;
• Flexible working hours, no one here tracks your work time because our culture is built on trust and cooperation;
• Social and welfare packages;
• 20 working days paid vacation, official public holidays, and 100% paid sick leave;
• Opportunities to make a difference, to develop and grow;
• Regular corporate celebrations, team buildings and fun activities;
• Comfortable office in Kyiv centre close to the metro station. Our Kyiv office is open 24/7 with all safety and health measures in place.

We are the creators of a new fintech era!
Our mission is to change this world by making blockchain accessible to everyone in everyday life. WhiteBIT is a global team of over 1,200 professionals united by one mission — to shape the new world order in the Web3 era. Each of our employees is fully engaged in this transformative journey.
We work on our blockchain platform, providing maximum transparency and security for more than 8 million users worldwide. Our breakthrough solutions, incredible speed of adaptation to market challenges, and technological superiority are the strengths that take us beyond ordinary companies. Our official partners include the National Football Team of Ukraine, FC Barcelona, Lifecell, FACEIT and VISA.

The future of Web3 starts with you — join us as an Paymaster!

Requirements
Professional skills and experience:
— 1–2 years of experience in finance, accounting, or payment operations.
— Understanding of payment systems, banking operations, and e-commerce principles.
— Knowledge of basic accounting and financial document flow.
— Experience working with payment services and internet acquiring will be an advantage.

Technical skills:
— Proficiency in Google Sheets (formulas, pivot tables, etc.).
— Ability to work with large volumes of data and perform reconciliations.

Responsibilities

— Processing incoming and outgoing payments through banking channels and payment systems.
— Executing cryptocurrency transactions: transfers, conversions, and data accuracy control.
— Daily monitoring of payment operations and reconciliation of financial data.
— Communication with banks and internal teams on payment-related matters.
— Maintaining financial documentation and ensuring compliance with internal requirements.
— Assisting in the preparation of reports for financial and operational control.
— Ensuring adherence to internal procedures and payment processing deadlines.
— Preparing and generating financial reports upon request from internal departments or management.

Work conditions

Immerse yourself in Crypto & Web3:
— Master cutting-edge technologies and become an expert in the most innovative industry.
Work with the Fintech of the Future:
— Develop your skills in digital finance and shape the global market.
Take Your Professionalism to the Next Level:
— Gain unique experience and be part of global transformations.
Drive Innovations:
— Influence the industry and contribute to groundbreaking solutions.
Join a Strong Team:
— Collaborate with top experts worldwide and grow alongside the best.
Work-Life Balance & Well-being:
— Modern equipment.
— Comfortable working conditions, and an inspiring environment to help you thrive.
— 22 business days of paid leave.
— Additional days off for national holidays.
— Health insurance.

Чи захоплює вас перетворення даних на практичні інсайти? Ми шукаємо Senior BI Engineer, який приєднається до нашої команди Data & Analytics і допоможе формувати звітність, створювати дашборди та розвивати підхід до прийняття рішень на основі даних у різноманітних бізнес- та потенційно державних проєктах.

Це роль рівня Senior із можливістю гібридного або віддаленого формату роботи, що забезпечує гнучкість та можливість співпрацювати з талановитими професіоналами з усього світу. Ідеальний кандидат має значний практичний досвід роботи з BI-інструментами, поглиблені знання SQL, моделювання даних та досвід тісної взаємодії з бізнес-стейкхолдерами. Ця роль вимагає не лише технічної експертизи, але й здатності розуміти потреби бізнесу, трансформувати їх у зрозумілі рішення для звітності та забезпечувати точність і надійність даних.

У Sigma Software ми цінуємо інноваційність, точність і командну роботу та створюємо підтримуюче середовище, де ваші знання та досвід можуть мати реальний вплив.

Чому варто приєднатися до нас? Ви працюватимете над важливими проєктами, отримаєте досвід у різних доменах та матимете доступ до переваг, таких як можливості професійного розвитку, міжнародна командна культура та сучасні технології.

Обов’язки:

— Проєктувати, створювати та підтримувати BI-звіти та дашборди
— Аналізувати бізнес-вимоги та перетворювати їх на звітні рішення
— Працювати зі стейкхолдерами для визначення KPI, метрик та логіки даних
— Писати та оптимізувати SQL-запити
— Перевіряти точність даних та досліджувати невідповідності
— Підтримувати покращення моделювання даних та звітного шару
— Співпрацювати з Data Engineers, Business Analysts, PMs та стейкхолдерами з боку замовника
— Готувати документацію для звітів, метрик та джерел даних
— Вносити вклад у розвиток BI best practices у межах юніту

Вимоги:

— 5+ років досвіду у BI, data analytics або data engineering
— Досвід роботи з Power BI, Tableau, Looker чи подібними інструментами буде плюсом
— Просунуті навички роботи з SQL
— Досвід моделювання даних, роботи зі структурами даних та data warehousing
— Розуміння процесів ETL/ELT та data pipelines
— Досвід очищення, валідації та контролю якості даних
— Вміння працювати з великими наборами даних та складною бізнес-логікою
— Добре розуміння бізнес-звітності, KPI та дизайну дашбордів
— Досвід прямої роботи зі стейкхолдерами для збору вимог та уточнення звітних потреб
— Рівень англійської Upper-Intermediate+

Буде плюсом:

— Досвід роботи з урядовими, державними, медичними, фінансовими або іншими регульованими доменами
— Досвід роботи з Azure, AWS, Snowflake, BigQuery, Databricks або Redshift
— Python або R для аналізу даних
— Досвід роботи з dbt, Airflow, Dagster чи подібними інструментами
— Знання data governance, access control та звітності, пов’язаної з комплаєнсом
— Досвід роботи за Agile

Are you passionate about turning data into actionable insights? We are looking for a Senior BI Engineer to join our Data & Analytics team and help shape reporting, dashboarding, and data-driven decision-making across diverse business and potentially government-related projects.

This is a Senior-level role with hybrid or remote work options, offering flexibility and opportunities to collaborate with talented professionals worldwide. The ideal candidate has strong hands-on experience with BI tools, advanced SQL, data modeling, and close collaboration with business stakeholders. This role requires not only technical expertise but also the ability to understand business needs, translate them into clear reporting solutions, and ensure data accuracy and reliability.

At Sigma Software, we value innovation, precision, and teamwork, and we provide a supportive environment where your expertise can make a real impact.

Why join us? You’ll work on meaningful projects, gain exposure to different domains, and enjoy benefits such as professional growth opportunities, a global team culture, and access to cutting-edge technologies.

Responsibilities:

— Design, build, and maintain BI reports and dashboards
— Analyze business requirements and translate them into reporting solutions
— Work with stakeholders to define KPIs, metrics, and data logic
— Write and optimize SQL queries
— Validate data accuracy and investigate inconsistencies
— Support data modeling and reporting layer improvements
— Collaborate with Data Engineers, Business Analysts, PMs, and customer-side stakeholders
— Prepare documentation for reports, metrics, and data sources
— Contribute to BI best practices within the unit

Requirements:

— 5+ years of experience in BI, data analytics, or data engineering-related roles
— Strong experience with Power BI, Tableau, Looker, or similar tools
— Advanced SQL skills
— Experience with data modeling, data structures, and data warehousing
— Understanding of ETL/ELT processes and data pipelines
— Experience with data cleaning, validation, and data quality control
— Ability to work with large datasets and complex business logic
— Good understanding of business reporting, KPIs, and dashboard design
— Experience working directly with stakeholders to gather requirements and clarify reporting needs
— Upper-Intermediate+ English level

Will be a plus:

— Experience with government, public sector, healthcare, finance, or other regulated domains
— Experience with Azure, AWS, Snowflake, BigQuery, Databricks, or Redshift
— Python or R for data analysis
— Experience with dbt, Airflow, Dagster, or similar tools
— Knowledge of data governance, access control, and compliance-related reporting
— Experience with Agile delivery

Чи захоплює вас перетворення даних на практичні інсайти? Ми шукаємо Senior BI Engineer, який приєднається до нашої команди Data & Analytics і допоможе формувати звітність, створювати дашборди та розвивати підхід до прийняття рішень на основі даних у різноманітних бізнес- та потенційно державних проєктах.

Looking for a Data Engineer to join the Dataforest team. If you are looking for a friendly team, a healthy working environment, and a flexible schedule ‒ you have found the right place to send your CV.

You'll be a great fit if you have:

- 2+ years of experience with Python;
- 2+ years of experience as a Data Engineer;
- Experience with Pandas;
- Experience with SQL DB / NoSQL (Redis, Mongo, Elasticsearch) / BigQuery;
- Familiarity with Amazon Web Services;
- Experience with Kafka;
- Knowledge of data algorithms and data structures is a MUST;
- Working with high volume tables 10m+.

What you'll do:

- Create ETL pipelines and data management solutions (API, Integration logic);
- Different data processing algorithms;
- Involvement in creation of forecasting, recommendation, and classification models.

Would be a plus:

- Experience with Spark (pyspark);
- Experience with Airflow;
- Experience in statistics;
- Knowledge of DS and Machine learning algorithms.

We ensure your growth with:

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

Moon Active is one of the world's top mobile game companies, our teams leverage cutting-edge technologies to craft fun and interactive games enjoyed by millions worldwide. We produce exciting and engaging entertainment for players across the globe and pride ourselves on developing top-quality casual games that invite and allow players to connect with one another.

We're looking for a talented DevOps engineer to join our team. As a DevOps Engineer, you will architect and operate scalable, resilient cloud environments, using advanced automation and AI-based tools to improve system health, reduce manual intervention, and optimize infrastructure costs.

Responsibilities:

• Own the full lifecycle of the Coin Master platform. Ensure high availability, performance, and cost-efficiency across our multi-region AWS environment
• Design and maintain robust, high-performance infrastructure using IaC. You will focus on building self-healing environments where AI agents continuously monitor and remediate issues in real-time
• Embed security into the infrastructure layer. Leverage AI-assisted tooling to proactively identify and patch vulnerabilities across our Kubernetes clusters and AWS stack
• Build tools and services that empower our engineering team to ship code faster. You are the architect of the platform, ensuring it is intuitive, scalable, and fully automated

Requirements:

• 3+ years of DevOps experience. Proven track record in managing production-ready Kubernetes clusters, AWS or GCP infrastructure, and high-traffic distributed systems
• Experience integrating AI tools into daily workflows, including hands-on use of AI agents (Cursor, Claude Code or similar) for infrastructure automation, planning, and debugging
• Extensive management experience of multiple AWS or GCP accounts spanning various regions, proficient in services like Lambda, CloudFront, SQS, VPC, and IAM
• Strong understanding of cloud cost optimization at scale through architectural design and automated resource management
• Deep proficiency with modern CI/CD platforms (GitHub Actions, Jenkins, ArgoCD)

Advantages:

• Experience with LLM orchestration (LangChain, LangGraph) or building internal tools/agents that interact with cloud APIs to automate operational tasks
• Hands-on experience with Kafka (MSK/Apache Kafka) and high-performance caching layers like Redis/Elasticache
• Experience with CloudFlare management and complex edge-computing configurations

Benefits:

Why join Moon Active? 

• Be part of a leading global mobile gaming company with a unique product enjoyed by millions
• Thrive in an exceptional, innovative, and dynamic environment
• Enjoy full transparency and open communication with talented colleagues across teams
• Take advantage of tremendous opportunities for professional growth and career advancement within a rapidly expanding company
• Influence and help build personalized product experiences that impact millions of users worldwide

We offer:

• Generous compensation; paid vacation and sick leave
• Extensive medical and life insurance coverage for you and your family
• CrossFit & running classes at the office and MultiSport card;  
• Comfortable and modern office located on Królewska 16 street in Warsaw
• Free daily breakfasts and lunches, and a fully stocked kitchen with snacks and fruits
• Latest tech equipment, including macOS devices
• Training & Development/Tuition reimbursement
• Friend Referral Program with generous bonuses
• Fun and collaborative workplace culture with regular Friday Happy Hours and team gatherings
• Relocation bonus for candidates moving to Warsaw
• Bicycle and Car parking

We Play to Win! We Play it Smart! We Play as a Team!

We are committed to investing in our employees and fostering a workplace that champions innovation, creativity, and collaboration. At Moon Active, we empower our team members to unleash their potential and achieve remarkable results every day. We encourage bold decision-making and believe that every individual has a significant impact on our success. Join us and level up your career in a supportive and high-achieving environment!
 

B2B Contract / Freelance | Remote
 

About the Company
 

Our client is a well-established US company and a recognized leader in the aesthetic skincare technology industry. The company develops innovative, FDA-cleared LED light therapy and connected skincare devices that combine advanced hardware, embedded technology, and mobile applications to deliver premium at-home skincare solutions used by customers worldwide.

 

About the Role
 

We are looking for a highly experienced Senior Mobile & Embedded Software Engineer to lead the end-to-end development of a companion mobile application for a Bluetooth-enabled skincare device.

This is a hands-on role for a senior contractor who can take ownership of the entire development lifecycle—from defining the architecture and technical specifications to building, integrating, testing, and delivering the final solution.

The successful candidate will work independently as the primary engineer on the project, collaborating directly with the client and taking full ownership of the product from concept through launch.

Following the initial product release, there is an opportunity to continue working with the company on a long-term part-time basis, providing ongoing support, maintenance, and feature enhancements for a few hours each week.

 

Responsibilities
 

• Design and develop a mobile application for a Bluetooth-enabled skincare device.
• Define the overall system architecture and application structure.
• Implement reliable Bluetooth Low Energy (BLE) communication between the mobile application and the device.
• Collaborate on firmware integration and hardware communication.
• Write detailed technical specifications and system documentation.
• Lead the development process from concept through production release.
• Troubleshoot hardware/software integration issues.
• Ensure high performance, reliability, and maintainability of the application.
• Deliver a production-ready solution within the project timeline.
  
   

Requirements
 

• 5+ years of experience in mobile application development (iOS, Android, or cross-platform).
• Strong expertise with Bluetooth Low Energy (BLE).
• Solid experience integrating mobile applications with embedded systems and firmware.
• Hands-on experience developing software for connected skincare devices or skincare technology products is required.
• Proven experience delivering products from concept to production.
• Ability to independently define architecture, make technical decisions, and own the full development lifecycle.
• Experience writing technical specifications and system requirements.
• Strong debugging and problem-solving skills.
• Excellent communication skills and ability to work independently.
  
   

Nice to Have
 

• Experience with connected medical, wellness, beauty-tech, or IoT devices.
• Experience with BLE device certification and testing.
• Familiarity with FDA-regulated or consumer healthcare products.
  
   

Engagement Details
 

• Employment Type: Contract / Freelance.
• Location: Remote, with a preference for candidates located within 2–3 hours of the Israel time zone to support effective collaboration.
• Team: You will be the sole engineer responsible for this project.
• Working Hours: Flexible, with occasional evening meetings (around 8:00–9:00 PM Israel time) with the US-based team.
• Long-term Opportunity: After the initial development is complete, the role is expected to continue on a part-time basis (a few hours per week) for ongoing support, maintenance, bug fixes, and future feature development.

Full-Stack Engineer - TypeScript / Next.js / Node.js

We are looking for a Strong Middle / Middle+ Full-Stack Engineer to join an existing AI SaaS product and work directly with the CTO.

What you’ll do

• Develop and maintain frontend and backend features
• Work with TypeScript, Next.js, PostgreSQL, and Prisma
• Implement Stripe billing, subscriptions, plans, and usage limits
• Improve performance, security, monitoring, and platform stability
• Work with background jobs and asynchronous workflows

• Review the existing implementation and suggest practical improvements

   

Requirements

• 5-7 years of commercial experience
• Strong TypeScript and Next.js/React
• Solid backend and API development experience
• Strong knowledge of PostgreSQL
• Experience with ORM, ideally Prisma
• Experience with production SaaS products
• Ability to work independently with an existing codebase
• Professional English and good CET working-hours overlap

• Availability to start within 1.5–2 weeks

   

Nice to have

Experience with Stripe, tRPC, rate limiting, background jobs, Sentry, Vercel, Tailwind, shadcn/ui, security practices, or AI/LLM integrations.

We’re looking for a practical product engineer who can balance clean engineering with the speed of an early-stage startup.

As a product setup manager, you will play a key role in ensuring our products are professionally prepared and fully optimized to meet the requirements. This position is responsible for the accurate and efficient setup of product information, including visual assets, content, translations, and feature configurations, to guarantee a seamless and high-quality customer experience from the moment of launch.

As a Product Setup Manager, you will maintain consistency and attention to detail across our product portfolio, working closely with Product, Marketing, and Development teams to deliver polished, market-ready products.

Key Responsibilities

• Manage content localization and adaptation for international markets, including translation oversight and cultural relevance.
• Coordinate with product, retention, tech, design, and marketing teams to facilitate smooth product launches and feature rollouts.
• Oversee multimedia content production, including texts, images, videos, and infographics, coordinating with UI/UX and web designers where necessary.
• Manage product operations tools and tech stack (e.g., Jira, Asana, Confluence) to enhance collaboration and productivity across teams.

Requirements

• 2+ years of experience working on the GR8 Tech platform, with hands-on involvement in product operations, integrations, or workflow optimizations.
• Strong attentiveness to detail and a high sense of responsibility, ensuring accurate execution of processes and timely delivery of operational goals.
• Hands-on experience in creating marketing banners, social media visuals, and promotional graphics using AI generators.
• Excellent critical thinking skills, demonstrated through the ability to analyze complex problems, anticipate risks, and develop innovative solutions in fast-paced environments.
• B2 level English; additional languages (e.g. Spanish) is a plus.

Preferred Qualifications

• Familiarity with content analytics platforms and A/B testing methodologies.
• Advanced knowledge of HTML/CSS for content formatting.
• Would be a plus: experience with Motion marketing automation tool 

About the Role

We are a fast-growing, internationally-focused fintech company delivering cutting-edge crypto processing and payment solutions. As we expand our global footprint, we are looking for a driven, results-oriented B2B Sales Manager to join our team.

In this role, you will drive the entire sales cycle—from sourcing high-value outbound leads to closing deals with international B2B clients. You will act as the face of our product, helping businesses seamlessly integrate modern payment infrastructure.

Your Key Responsibilities

• Pipeline Management: Source and qualify inbound (warm/hot) leads, while aggressively driving outbound lead generation via LinkedIn, email, and direct outreach.
• Product Demonstrations: Conduct high-impact product presentations and live demos for prospective B2B clients.
• Deal Closing: Prepare tailored commercial proposals, handle objections, and navigate deals through to closing and client onboarding.
• Cross-Functional Collaboration: Partner closely with internal Legal, Compliance, and Tech teams to ensure smooth onboarding and compliance with industry standards.
• CRM & Reporting: Maintain flawless data hygiene in our CRM, tracking sales metrics and forecasting pipeline growth.

What We Are Looking For

• Experience: 2–3 years or more of proven success in B2B sales, specifically in the FinTech sector—MANDATORY—as well as in cryptocurrencies, payment processing, SaaS, or high-risk sectors.
• Sales Acumen: A deep understanding of sales funnels, modern closing techniques, and a proven track record of handling complex objections.
• Communication: Exceptional verbal and written communication skills with the ability to build rapport quickly.
• Language Skills: English proficiency at an Upper-Intermediate (B2) level or higher (comfortable conducting business correspondence and basic negotiations).
• Soft Skills: High self-organization, accountability, resilience, and a sharp focus on hitting KPIs.

Great-to-Haves (Bonus Points)

• Direct experience selling in crypto/payment processing or working with high-risk verticals (iGaming, Forex, Web3).
• Experience managing international clients across various jurisdictions.
• Strong negotiation skills at the C-level (negotiating with CEOs, COOs, and Heads of Payments).

What We Offer

• Uncapped Earning Potential: A solid base salary coupled with a transparent, performance-driven bonus structure with no ceiling.
• Flexibility: hybrid or in-office work arrangement at the office in Kyiv or Warsaw.
• Global Impact: The opportunity to work with international markets and cutting-edge Web3/FinTech products.
• Career Growth: A clear pathway to advance into a Senior Sales or Head of Sales role as the company scales.

bill_line is an international fintech company with Ukrainian roots.

We have built and continue to develop a payment platform for businesses of all sizes operating online.

Our clients include e-commerce stores, marketplaces, banks, insurance companies, charitable organizations, and many other businesses processing online payments. One of our key advantages as a payment service provider is our ability to deliver custom solutions while following a client care approach throughout every stage of cooperation—from the initial integration request to implementation and transaction support.

We’re not stopping here—we’re continuing our journey to the moon, and we’re looking for another talented professional to join our team.

Requirements

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, Information Systems, or a related field.
• At least 1 year of experience in ERP system development or support.
• Strong knowledge of BAS/BAF architecture and core principles.
• Experience with development and customization of modules and reports in BAS/BAF.
• Understanding of ERP system architecture, API integration principles, and Agile/DevOps methodologies.
• Experience in software development, testing, and maintenance.
• Hands-on experience with SQL/NoSQL databases.
• Strong SQL query writing skills.

Responsibilities

• Customize and enhance documents, reports, and software modules.
• Provide technical support for onboarding new businesses into the accounting information environment.
• Develop SQL queries for data extraction and reporting.
• Prepare data for management and analytical reporting.
• Develop new functionality on the BAS/BAF platform.
• Integrate BAS/BAF with external services and APIs.
• Analyze, troubleshoot, and resolve system issues.
• Handle user requests and technical tasks.
• Maintain and improve customized configurations.
• Participate in designing and implementing new automation solutions.

What We Offer

• Flexible working hours: start between 8:00 AM and 10:00 AM, finish between 5:00 PM and 7:00 PM.
• Office-based or hybrid work format (office days: Monday, Wednesday, and Friday).
• All the equipment and resources you need to work efficiently, including hardware and professional software subscriptions.
• Fully covered corporate lunches with GudFooD (UAH 200/day).
• A comfortable and modern workplace.
• Comprehensive health insurance.
• Mental health support, including access to corporate psychologists whenever needed.
• 24 calendar days of paid annual leave.
• Fully paid sick leave.

Our Team

Our team is one of the things we’re most proud of. Your future colleagues enjoy spending time together, supporting the Armed Forces of Ukraine through fundraising initiatives, sharing movie recommendations, discovering new music, and creating a friendly, collaborative atmosphere.

Team Life

We often wrap up the week with our traditional Friday mini parties. Before the full-scale war, we regularly organized team-building events, and once Ukraine wins, we’re looking forward to bringing those traditions back.

We are Cacao Mobile.
For more than 10 years, we've been building apps in the Health & Wellness, AI Chats & Tools, and Utilities categories, reaching millions of users worldwide.

We're currently scaling the team behind our VPN Application and looking for an Infrastructure Engineer (project-based, part-time).

Responsibilities:
- Configure and maintain the network data plane: WireGuard, kernel routing, nftables/tproxy, ipset, CoreDNS
- Set up egress through SOCKS5 proxies (ISP/residential)
- Develop the control plane: IP manager, VPN config management, IP allocation, state machine, prober service
- Integrate with Postgres, Slack, and CLI tools
- Handle deployment, monitoring, alerting, and 24/7 node operations

Requirements:
- Solid command of Linux networking: routing, netfilter/nftables, WireGuard, tunnels
- Understanding of operations: deployment, monitoring, system reliability
- Hands-on experience with egress/routing and policy routing/tproxy
- Background in VPN, ISP, or residential proxy environments

We Offer:
- Experience working in a product team focused on scaling
- The chance to work on a great VPN product
- An opportunity to grow your professional skills alongside like-minded colleagues
- An open, creative atmosphere with transparent processes
- Access to all the tools and services you need
- Fully remote work (EU, UA)

Job Description

• Possessing 0-1 years of professional experience in a relevant technical field, demonstrating a foundational understanding of software development or quality assurance principles.
• This role requires a full-time commitment to working on-site at our Lviv office, fostering direct collaboration and team integration within the physical workspace.

Required Skills:

• Demonstrating a foundational understanding of the Claude AI platform, including its core functionalities and application in various scenarios.
• Possessing basic knowledge of Claude code, with an eagerness to learn and apply its principles in practical development or testing contexts.
• Having a foundational understanding of Quality Assurance methodologies and processes, with a willingness to contribute to testing activities.

Preferred Skills:

• Familiarity with basic Python programming concepts and syntax, indicating a capacity to learn and apply scripting for automation tasks.
• Academic exposure to or basic knowledge of Javascript and HTML5, useful for understanding web-based application structures and interactions.

Job Responsibilities

• Assist in testing mobile applications and systems to ensure their configuration, operation, and capabilities function efficiently.
• Contribute under guidance to the production of clear and concise test reports and release notes for internal team communication.
• Support in providing constructive feedback to development teams regarding technical, troubleshooting, or operational challenges encountered during testing.
• Assist with the setup, configuration, and ongoing maintenance of various test environments as directed by senior engineers.
• Participate in team discussions and observe senior colleagues to suggest potential improvements for development and quality assurance processes.
• Collaborate with experienced engineers to check and verify consistency across different devices, browsers, and operating systems.
• Learn to accurately log, document, and track identified bugs and issues within the designated defect tracking system.
• Observe and participate in peer reviews of solution designs and related code to understand quality standards and best practices.
• Help in executing predefined test cases and scenarios to validate software functionality and performance.
• Support the team in gathering and analyzing test data to identify trends and potential areas for improvement.

Department/Project Description

This organization operates within the dynamic media and entertainment sector, delivering innovative solutions that enhance content distribution and consumption. It specializes in providing advanced platforms and services for digital media, catering to a broad spectrum of content creators, publishers, and advertisers. The focus is on leveraging cutting-edge technology to optimize user engagement and monetize digital assets effectively. Through robust infrastructure and strategic partnerships, it supports the evolving landscape of online video and interactive entertainment. The company plays a crucial role in connecting content providers with global audiences, ensuring seamless delivery and high-quality user experiences.

Please note that this is a temporary role by end of 2026

How you’ll be impactful:

We are looking for an experienced QA engineer with a passion for quality and perfection in mind with can do attitude to join our team and take part in delivering products that will impact the lives of millions of people.

What you’ll be doing:

• Responsibility for quality aspects of the company’s products. 
• Ensure proper test coverage based on requirements, user stories, and design specifications.
• Effectively collaborate with the Dev team and Product Team.
• Deliver progress of all test activities against the plan.
• Follow testing entrance and exit criteria. Identify and manage the critical path of testing.
• Perform manual QA tests.
   

What you’ll need to be successful:

• 2+ years of hands-on Manual QA experience
• Solid understanding of QA methodologies, testing processes, and the software development lifecycle
• Experience testing web, server-side, and database-driven applications
• Familiarity with backend infrastructure and cloud platforms (AWS, Heroku)
• Comfortable managing workload across multiple concurrent projects
• At least Intermediate English (written and verbal)

Nice to Have

• QA certification (ISTQB or equivalent)
• Experience with test automation frameworks (Selenium, Appium, Cucumber)

What We Offer:

• Friendly, talented, collaborative, and entrepreneurial team 
• Work in the international company
• Competitive compensation in USD
• Fun and inclusive digital, and in-person events
• Office (hybrid working model, two days from the office), we have offices in Uzhhorod, Kosice, and Budapest