Onicore

As our company continues to grow, we are seeking a highly motivated and detail-oriented B2B Support Manager to join our dynamic team. We offer a vibrant and supportive work environment that fosters collaboration, innovation, and personal growth. At our company, each team member plays a key role in delivering a top-tier product and ensuring our customers have the best experience possible. If you’re passionate about helping people, solving problems, and being part of a high-energy team, we want to hear from you!
 

Languages Required:

English — at least Intermediate (B1)

russian — Upper-Intermediate (B2)

Ukrainian — Native
 

Requirements:

• Experience in customer support, community management, or related fields, ideally in fintech, crypto, or payment systems
• Experience with custodial / non-custodial wallets and platforms
• Strong written communication skills
• The ability to work effectively and professionally in a chat-based environment in English, Ukrainian, and russian.
• Ability to remain calm and composed when handling difficult or frustrated customers
• Excellent self-organizational skills, with the ability to prioritize and manage multiple tasks effectively.
• Demonstrate the ability to seamlessly switch between different systems and tools.
• Experience with Postman.
• Experience with Payments and Transactions (Fiat and Crypto).
• Communicate complex concepts in a clear, simplified manner that’s easily understood by non-technical audiences.
• Ability to Create and Maintain Customer-Facing Documentation.
• Familiarity with Content Management Systems (CMS).

• A customer-centric attitude with a focus on delivering high-quality service

  
   

Key Responsibilities:

• Assistance with customers' incoming requests through ticketing system (messaging via help desk through email and texting channels); 
• Comfortable writing customer-facing documentation (Knowledge Base help articles, FAQs);
• Customers' Technical assistance on the first phase of integration; 
• Support and issue solution from all types of requests (payment assistance, technical questions, overall questions regarding the service); 
• Keeping high level standards in communication with clients;
• Work with CMS (keeping up to date + optimization).

Will be a plus:

• Previous experience in Fintech.
• Experience in the optimization of internal workflows.
• Experience working with B2B clients.
   

What we offer:

• Flexible schedule (4−5 shifts per week);
• Remote work;
• Opportunities for professional development and career growth;
• Apple equipment;
• Competitive salary and benefits package.

We are Onicore — fintech company specializing in developing products for cryptocurrency operations. 

Registered in the USA, our company is powered by a talented Ukrainian team, working across the globe.
 

📊 Now we’re on the hunt for a specialist who will drive the project of algorithmic trading. 

Your skills:

- 3+ years of experience in Data Science;

- excellent command of Python, understanding of the principles of OOP;

- deep knowledge in linear algebra, probability theory and mathematical statistics;

- data collection and preprocessing (numpy, pandas, scikit-learn,ta-lib);

- experience working with all types of classical machine learning (Supervised Learning, Unsupervised Learning, Reinforcement Learning);

- development experience and deep understanding of the principles of the architectures: RNN, LSTM, GRU, CNN, Transformer in the field of analysis and prediction of time sequences (time series predictions);

- confident use of both high-level and low-level APIs for TensorFlow (writing custom training loops, custom metrics & loss_functions). 

Knowledge of PyTorch is welcome;

- the ability to visualize the learning process using TensorBoard;

- boosting neural networks (Distributed XGBoost/LightGBM);

- visualization of results (matplotlib, seaborn).

Would be a plus:

- experience with currency markets;

- PhD degree in the field of data science / machine learning.

Your responsibilities:

● solving algorithmic trading problems: regression/autoregression, classification of timeseries/financial series, working with cryptocurrency quotes.

What’s in it for you? 

🏥 Health first: Comprehensive medical insurance.

🤓 Keep growing: We cover courses, conferences, training sessions, and workshops.

💪 Stay active mentally and physically : Sports / hobby / personal psychologist to fuel yourself.

💼 We've got your back: Access to legal assistance when you need it.

🧗‍♂️ Inspiring vibes: Join a motivated, goal-oriented team that supports each other.

🧑‍💻 Make a difference: Have a direct impact on shaping and growing the product.

💻 Work smarter: Corporate laptops to help you do your best work.

Join our team and help us level up!

Onicore is a FinTech company specializing in developing products for cryptocurrency operations. We strive to make crypto convenient and understandable for everyone.

We are seeking a dynamic and experienced Chief Financial Officer (CFO) to lead our financial operations. The ideal candidate will be responsible for overseeing the entire financial strategy, policies, and processes across our company, ensuring optimal financial performance, risk management, and strategic growth.

Requirements: 

• Bachelor’s degree in Finance, Accounting, Economics, or a related field (Master’s or MBA preferred).
• CPA, CFA, or other relevant professional certifications would be a strong plus.
• 7+ years in financial management, including senior roles (CFO or equivalent).
• Expertise in managing international payments, treasury, and cash flow optimization.
• In-depth knowledge of cryptocurrency markets, blockchain, and crypto-related regulations.
• Strong understanding of global financial processes, tax, accounting, and compliance.
• Proficient in ERP, accounting software, and business intelligence tools.
  Exceptional leadership, communication, and collaboration skills.
  Ability to think strategically while managing day-to-day operations with attention to detail.
• Advanced problem-solving and analytical skills.
• Deep knowledge of payment platforms and fintech.

Responsibilities:

• Lead the finance department, setting strategic direction. 
• Develop and implement financial strategies, policies, and procedures aligned with company goals. 
• Ensure accurate preparation of consolidated financial statements, reports, and budgets. 
• Oversee forecasting, budgeting, and long-term financial planning. 
• Provide regular financial analysis and insights to senior management.
• Conduct variance analysis and recommend corrective actions. 
• Manage financial operations. 
• Optimize cash flow, working capital, and overall financial performance.
• Ensure compliance with tax regulations and financial reporting standards.
• Oversee audits, internal controls, and external reporting to ensure transparency and compliance with laws. 
• Optimize financial processes. 
• Oversee crypto adoption in operations, focusing on payment processing, portfolio management, and compliance. 
• Advise the executive team on financial matters to drive strategic decision-making.

We offer:
 

• 🏥 Medical insurance
• 🤓 Paid courses, conferences, training sessions, workshops etc.
• 💪 Sport compensation
• 💼 Legal assistance

• 🧗‍♂️ Motivated and goal-oriented team

   

Ready to make a difference? Apply now and become a part of our journey!

Onicore is a FinTech company specializing in developing products for cryptocurrency operations. We strive to make crypto convenient and understandable for everyone.
 

And now we are looking for a talented and experienced Java developer to join our team. If you’re passionate about working with the latest technologies, contributing to exciting product developments, and collaborating with an awesome team, we want to hear from you!
 

Your Key Duties:

• Design, develop, and maintain high-performance, scalable Java-based applications in the FinTech domain.
• Implement and optimize multithreaded and concurrent solutions, ensuring thread safety and system reliability.
• Build and maintain microservices using the Spring ecosystem.
• Ensure database efficiency, including query optimization, proper indexing, and transaction handling.
• Evaluate and improve application performance, conduct profiling sessions, and resolve bottlenecks.
• Design and implement synchronous and asynchronous integrations with internal and external systems.
• Participate in architectural discussions, propose improvements, and drive technical initiatives.
• Collaborate closely with product managers, architects, and QA engineers to deliver business-critical solutions.
• Write clean, maintainable, and well-tested code following best practices.
   

Your Skills:

• 5+ years of professional experience in Java development.
• Strong expertise in Java 17+ (knowledge of modern language features, streams, lambdas, functional programming concepts).
• Deep understanding of core Java:
• Collections Framework, Generics, Streams, Functional Interfaces
• Concurrency utilities (Executors, CompletableFuture, Fork/Join, Locks, Atomics, etc.)
• Proven experience with the Spring ecosystem: Spring Boot, Spring Data (JPA/Hibernate), Spring Security, Spring Cloud (microservices).
• Solid understanding of databases (SQL and/or NoSQL), including:
• Transactions, isolation levels, and locking mechanisms
• Query optimization and indexing strategies
• Hands-on experience with multithreading and concurrency, including race conditions, deadlocks, synchronization, and strategies to avoid them.
• Proficiency in synchronous and asynchronous communication: REST, messaging systems (Kafka, RabbitMQ, etc.), event-driven architectures.
• Experience working on FinTech or financial services projects.
• Strong focus on performance evaluation, scalability, and reliability.
• Strong problem-solving skills, ability to work independently, take initiative, and drive solutions proactively.
• Self-driven and responsible, capable of working with minimal supervision.
• Proactive, solution-oriented mindset.
• Team player with a collaborative attitude.
   

Nice to have:

• Experience with Kubernetes, Docker, and cloud-native environments.
• Experience with application profiling and performance tuning:
• Tools such as VisualVM, JFR (Java Flight Recorder), JMC (Java Mission Control)
• Identifying and resolving performance bottlenecks
• Analyzing complexity of SQL queries and optimizing execution plans
• Familiarity with CI/CD pipelines and DevOps practices.
• Knowledge of distributed systems, event sourcing, or CQRS.
   

We offer:

🏥 Medical insurance

🤓 Paid courses, conferences, training sessions, workshops etc.

💪 Sport compensation

💼 Legal assistance

🧗‍♂️ Motivated and goal-oriented team

Ready to make a difference? Apply now and become a part of our journey!