DevBrother

About the Project

We are a pioneering Web3 gaming platform and competitive environment built for the future of blockchain gaming. 
 

We are looking for an exceptional UX Designer who employs an AI-centric approach to translate complex Web3 mechanics, crypto trading flows, and gamified campaigns into seamless, frictionless experiences.
 

The Role: As our Senior UX Designer, you will own the platform's end-to-end user experience. You will bridge the gap between competitive gaming, decentralized finance, and artificial intelligence. By leveraging an AI-first mindset, you will ensure that intricate processes—like secure crypto trading, wallet management, and token claiming—feel intuitive to both hardcore Web3 users and traditional gamers, while actively utilizing AI tools to optimize your design workflows and user research.

Key Responsibilities

• AI-Centric Design Workflows: Actively utilize generative AI and advanced design automation tools to accelerate prototyping, generate UX copy, analyze user research, and streamline your daily workflows.
• End-to-End UX: Design intuitive, user-centric journeys for quest tracking, NFT lore card collection, and gaming passport management across the platform.
• Crypto & Trading Flows: Leverage your deep understanding of crypto trading to design frictionless interfaces for token transactions, reward claims, and in-app Web3 economics.
• Complex Problem Solving: Simplify complex blockchain interactions (wallet connections, gas fees, signing transactions) into elegant, user-friendly screens.
• Gamification & Engagement: Craft engaging interfaces for special crypto-gaming campaigns (e.g., academy-style onboarding, ecosystem-specific reward tracks) that drive player retention.
• Cross-Functional Collaboration: Work closely with product managers and engineering teams to implement front-end designs that support our robust anti-cheat architecture and seamless Web3 integrations.

Required Qualifications

• Proven UX Expertise: 5+ years of UX/UI design experience with a strong, portfolio-backed focus on web and application design.
• AI Tool Proficiency: Demonstrated experience integrating AI into the design process (e.g., utilizing AI plugins in Figma, prompting LLMs for user journey mapping, or using generative AI for rapid ideation and asset creation).
• Crypto Trading Experience: Extensive experience designing for crypto exchanges, DeFi protocols, or Web3 wallets. You must deeply understand tokenomics, trading UX, and blockchain transaction flows.
• Web3 & Gaming Fluency: A solid understanding of Web3 gaming dynamics, NFTs, and play-and-earn ecosystems.
• User-Centric Mindset: Ability to advocate for the user, utilizing AI-assisted behavioral data analysis and research to inform design decisions in a fast-paced environment.

Nice to Have

• Experience designing UX for AI-driven features, such as smart agents, automated trading bots, or personalized content delivery.
• Previous experience designing anti-cheat interfaces or trust-and-safety dashboards for gaming communities.
• A passion for competitive gaming and an understanding of what drives player motivation and progression.

About the Company

We are an innovative deep-tech product company transforming digital commerce through patented AI-driven media optimization. 

We are seeking an Engineer with hands-on technical fluency across major e-commerce platforms and CMS ecosystems (Shopify, Magento, SFCC, etc.). In this role, you will bridge the gap between our core technology and our clients' varied online stores, spearheading implementations, custom scripting, and technical onboarding.

What You’ll Do

• Platform Integration Lead: Guide brands on integrating our AI media delivery solutions into their existing storefronts and platform architectures (headless, monolithic, or hybrid).
• Client Onboarding & Solutions Architecture: Translate merchant objectives into clear technical deployment plans, audit storefront codebases, and set up optimal integration hooks.
• Troubleshooting & Technical Support: Diagnose integration issues, theme/plugin conflicts, and asset delivery bottlenecks across diverse frontend setups.
• Hands-on Implementation: Assist clients with frontend snippets, custom scripts, APIs, webhooks, and theme adaptations to ensure flawless rendering and peak Core Web Vitals.
• Client Advocacy: Work hand-in-hand with R&D, Customer Success, and Sales to continuously improve platform connectors, integration documentation, and client self-serve toolkits.

Requirements

• 5+ years of experience in an e-commerce engineering or Technical Consultant role within the digital commerce ecosystem.
• E-Commerce Platform Expertise: Strong practical experience working with at least one or more of the following platforms:
  • Shopify / Shopify Plus
  • Magento (Adobe Commerce)
  • Salesforce Commerce Cloud (SFCC)
  • WooCommerce / WordPress
  • BigCommerce (or custom/headless commerce architectures).
• Web & Frontend Fundamentals: Solid grasp of frontend technologies (HTML, CSS, JavaScript) and understanding of DOM rendering, network waterfalls, and web performance optimization.
• Debugging Skills: Practical experience inspecting live storefronts using browser developer tools and handling API/webhook integrations.
• Language Proficiency: Strictly C1–C2 English level with excellent verbal articulation and technical writing skills.
• Time Zone: High flexibility and ability to operate within US business hours.
• Soft Skills: High ownership, customer-centric mindset, and the ability to explain complex technical concepts simply to both engineers and merchant business teams.

Nice to Have

• Experience with headless commerce setups, Jamstack, or modern frontend frameworks (React, Next.js, Vue).
• Understanding of CDN routing, caching strategies, and media delivery workflows.

We OFFER:

• ​A fast-paced, highly professional, international team environment with a flat structure and rapid decision-making.
• ​Competitive compensation packages commensurate with your background and product portfolio.
• ​Flexible, remote-first workflow optimized for seamless global alignment.
• Medical Insurance in Ukraine and a Multisport program in Poland.
• Offices in Ukraine (Kyiv, Kharkiv) and Poland (Wroclaw) or Remote.
• Paid vacation, sick leave, and official holidays.
• Legal & Accounting services.
• The company provides all necessary equipment.
• English classes and Education reimbursement.

About the Company

Our client is a financial technology services provider dedicated to expanding global access to digital assets by building innovative solutions in the cryptocurrency ecosystem. Their products provide exchanges, liquidity solutions, prediction markets, and enterprise-grade white-label integrations for institutional clients worldwide.

We are looking for an exceptional, cutting-edge AI-Native Product Manager to own our core Institutional Trading & Derivatives product suite. This is an elite technical product role where deep financial domain mastery meets absolute state-of-the-art AI orchestration.

Key Pillars of Success

To excel in this role, you must bring a battle-tested foundation across three non-negotiable pillars:

1. Cutting-Edge AI-Native Execution: You don't just use ChatGPT or Claude for PRDs and prototyping. You operate with autonomous agents, MCP (Model Context Protocol) integrations, browser/computer use, and human-in-the-loop review loops to dramatically multiply your operational throughput.
2. Deep Trading & Derivatives Mastery: You possess a deep, structural understanding of institutional market mechanics, order lifecycles, margin systems, liquidation engines, funding rates, oracles, exposure, and hedging.
3. End-to-End Ownership & Measurable Impact: Your ownership doesn't end at handing docs to devs or launching on staging. You own the full lifecycle—from discovery, build, and QA to client rollout, adoption, and iteration—backed by self-derived, quantified metrics (e.g., SQL-verified impact).

What You'll Do

• Product Ownership: Take complete end-to-end ownership of our white-label institutional trading, derivatives, and risk management infrastructure.
• Agentic Workflow Integration: Leverage autonomous AI agents and MCP servers to automate complex product research, spec generation, QA verification, and client delivery workflows.
• Institutional Client Rollout: Partner directly with institutional clients and B2B partners to deeply understand their trading workflows, capture complex requirements, and drive product adoption.
• End-to-End Execution: Drive features through the complete lifecycle: discovery, system spec definition, hands-on engineering alignment, QA validation, launch, and post-launch analytics.
• Data & Impact Analytics: Autonomously query databases (SQL) and analytics tools to track, measure, and optimize real client usage and performance metrics post-launch.
• Engineering & Business Alignment: Challenge technical and business assumptions constructively, maintaining direct, transparent communication across cross-functional engineering teams.

AI-Native Expectations

We are looking for candidates who operate at or above the absolute cutting edge of AI tooling:

• Agentic Workflows: Hands-on experience building or utilizing MCP (Model Context Protocol) integrations, autonomous loops, or computer/browser-use agents.
• Execution & Leverage: Using AI as a force multiplier across all product phases—from automated code/spec reviews and workflow automation to deep data processing and client communication.
• Technical Integrity: Using AI to elevate your productivity without substituting AI output for genuine domain expertise or critical engineering judgment.

Who You Are

• Autonomous & Proactive: Capable of taking a broad product domain and generating tangible, visible value within your first 90 days without step-by-step guidance.
• Transparent & Honest: Grounded in high integrity, objective self-awareness, and clear communication. You know your strengths, acknowledge knowledge gaps directly, and never bluff technical answers.
• Systems Thinker: Comfortable reasoning about APIs, data flows, state machines, edge cases, and complex risk models alongside senior engineers.

Qualifications

• English: Upper-Intermediate to Advanced (both written and verbal) for high-stakes institutional communication.
• Experience: 4+ years of software product management experience, specifically within fintech, crypto trading platforms, or institutional finance.
• Domain Expertise: Proven hands-on experience with institutional trading infrastructure, derivatives (perpetuals, futures, options), risk mechanics, margin, and liquidity.
• B2B / Client-Facing Delivery: Demonstrated track record of launching white-label or enterprise B2B products directly for external institutional clients.
• AI-Native Mastery: Practical, advanced usage of modern agentic AI tools and environments (MCP, Cursor, Claude Code, autonomous loops).
• Data Competency: Solid experience writing SQL queries independently to measure feature performance, user funnels, and adoption metrics.

Bonus Points:

• Software development or engineering background.
• Direct experience running or supporting a trading desk, market-making operations, or liquidity adapters.
• Deep knowledge of crypto-native derivatives protocols, Web3 infrastructure, or prediction markets.

We Offer

• Flexibility & Hubs: Flexible working hours with physical office access in Ukraine and Poland (Wroclaw).
• Health & Wellness: Medical Insurance in Ukraine and Multisport program in Poland.
• Time Off: Paid vacation, sick leaves, and observance of official holidays.
• Growth & Support: Corporate English classes up to three times a week, plus mentoring and educational budgets.
• Contractor Support: Complete tax and accounting services provided for Ukrainian contractors.
• Equipment: High-end hardware and development equipment provided by the company.
• Culture: Regular corporate activities (team buildings, tech talks, parties) combined with an advanced bonus system.

About the Company

Our client is a developer of scalable fintech and trading platforms, providing enterprise-grade infrastructure to global partners. As part of a major initiative to integrate our platform's trading infrastructure into the applications and internal services of a large bank, we are opening a position for a Senior Full-Stack Engineer (Mobile & Backend focus).

The core challenge of this role is designing and developing fault-tolerant mobile trading modules and ensuring their seamless, high-load integration with both the bank’s and our platform’s server-side architectures.

What You'll Do

• Mobile & Server Integration: Develop and implement cross-platform mobile solutions (React Native) and backend services to embed our trading engine into the banking environment.
• High-Load Mobile Architecture: Ensure minimal interface response times and flawless processing of streaming quotes, charts, and orders via WebSockets on mobile clients.
• Backend Services: Build robust API gateways, data adapters, and integration layers connecting the mobile client with banking services and our core platform.
• Client Collaboration: Participate in technical sessions with the CTO, bank architects, and client engineers to align on security protocols and mobile client requirements.
• Security & Optimization: Ensure the mobile application meets strict banking security standards (encryption, biometrics, secure session management).

AI-Native Approach (Strict Requirement)

Active, practical use of AI is a mandatory baseline requirement. We expect you to treat AI as a fundamental part of your development process:

• Continuous work with cutting-edge tools (Claude, Cursor, Copilot, agentic scripts) to accelerate system design, code generation, refactoring, and automated testing.
• The ability to critically verify AI outputs and leverage them to multiply the delivery speed of complex features.

Who You Are

• Domain Expert: Practical experience in trading, banking products, fintech, or payment solutions (understanding the nuances of transactions, authorization, and financial data).
• High-Load Mobile Experience: Expertise in handling intensive real-time event streams and maintaining strict connection stability on mobile devices.
• Confident Communicator: Comfortable speaking directly at a high technical level with CTOs and enterprise banking leads.
• Fast Learner: Capable of quickly mastering the architectural specifics of our core product with the support of our internal engineering team.

Qualifications

• English: Upper-Intermediate or Fluent (strong verbal and written skills for daily client communication).
• Experience: 5+ years of commercial development experience, balancing mobile and backend responsibilities.
• Mobile Stack: Excellent command of React Native and TypeScript, with a deep understanding of iOS/Android platform specifics, native modules, and mobile rendering optimization.
• Backend Stack: Solid backend development experience (Node.js/TypeScript or similar enterprise stacks), with proven ability to build REST/GraphQL APIs and handle WebSocket communication.
• Infrastructure & Security: Understanding of mobile data protection principles, caching strategies, background task management, and push notifications.

Bonus Points:

• Experience embedding modules (SDKs/white-label solutions) into existing large-scale mobile banking applications.
• Practical familiarity with OAuth2/mTLS authorization protocols within the banking sector.

We Offer

• Flexibility & Hubs: Flexible schedule with hubs in Ukraine and Poland (Wroclaw).
• Health & Wellness: Medical Insurance (Ukraine) and Multisport program (Poland).
• Time Off: Paid vacations, sick leave, and all public holidays.
• Growth: Mentorship programs, access to educational platforms, and English classes (up to 3 times a week).
• Equipment: Modern development hardware provided by the company.
• Support: Tax and accounting support for specialists in Ukraine.
• Culture & Perks: Regular team-building activities, meetups, and a transparent bonus system.

About the Company

Our client is a financial technology services provider that expands global access to digital assets by building innovative solutions for the trading ecosystem. Their products provide exchanges, liquidity solutions, and enterprise-grade integrations for clients worldwide. We are currently undertaking a massive project to integrate our core trading infrastructure into the ecosystem of a major bank, and we are looking for a highly capable Senior Full-Stack Engineer (Web & Backend) to drive this initiative.

In this role, you will be responsible for the end-to-end development and integration of high-load trading components, working directly with our CTO and the bank’s technical leadership team.

What You'll Do

• Infrastructure Integration: Design and implement secure, scalable integrations bridging our trading engine with the existing architecture of a large institutional bank.
• Full-Stack Development: Build and maintain high-performance server-side services and responsive web interfaces for complex financial operations.
• High-Load Engineering: Optimize services for low latency, multi-threaded data processing, and real-time streaming protocols (WebSockets).
• Technical Communication: Collaborate directly with the bank’s tech leads, architects, and our CTO to align on architectural decisions, APIs, and strict security protocols.
• Engineering Standards: Write clean, reliable, and testable code, conduct rigorous code reviews, and help define architectural best practices.

AI-Native Approach (Strict Requirement)

Fluency in and active application of AI tools is a strict filter for this role. We are looking for an engineer whose daily development cycle is organically intertwined with AI assistants and agentic workflows:

• Regular, hands-on use of modern tools (e.g., Claude Code, Cursor, MCP servers, GitHub Copilot) for code generation, architectural analysis, debugging, and routine automation.
• Proven ability to significantly increase delivery speed and quality using AI tools without sacrificing code reliability or security.

Who You Are

• You have deep domain knowledge in fintech, trading, banking, payment gateways, or exchange platforms.
• You possess a proven track record of building distributed, high-load systems with stringent fault-tolerance and security requirements.
• Strong Communicator: You can confidently defend architectural decisions on a technical level in front of C-level executives and enterprise banking teams.
• Fast Learner: You are ready to dive deep into the architecture and business logic of our existing products, supported by our team's mentorship and onboarding.

Qualifications

• English: Upper-Intermediate or Fluent (confident in leading technical negotiations and writing documentation).
• Experience: 5+ years of commercial development experience as a Full-Stack or Senior Backend Engineer.
• Backend Stack: Deep knowledge of server-side technologies: Node.js/TypeScript, RESTful API design, WebSockets, and message queues.
• Frontend Stack: Strong command of the modern web stack (React.js, TypeScript, state management) for building data-heavy interfaces.
• Data & Infrastructure: Experience with relational databases, complex SQL optimization, CI/CD pipelines, and containerization.

Bonus Points:

• Experience integrating with core banking systems, FIX protocols, or financial institution Open APIs.
• Understanding of market mechanics, liquidity, and order books.

We Offer

• Flexibility & Hubs: Flexible working hours with physical office access in Poland (Wroclaw) and Ukraine.
• Health & Wellness: Medical Insurance in Ukraine and a Multisport program in Poland.
• Time Off: Paid vacation, sick leaves, and all official holidays.
• Growth: Access to educational programs and corporate English classes up to three times a week.
• Equipment: Top-tier hardware and development gear provided.
• Contractor Support: Complete tax and accounting services handled for Ukrainian contractors.
• Culture: Regular team-building, tech events, and an advanced bonus system.

About the Company

Our client is a financial technology services provider dedicated to expanding global access to digital assets by building innovative solutions in the cryptocurrency ecosystem. Their products provide exchanges, liquidity solutions, and enterprise-grade integrations for clients worldwide. Specialized in building trading solutions, we are looking for a proactive, structured Middle Project Manager to join our engineering and delivery team.

In this role, you will coordinate across cross-functional engineering teams, facilitating end-to-end delivery of complex technical initiatives in a fast-paced, rapidly evolving environment.

What You'll Do

You will drive delivery discipline, alignment, and execution across engineering, product, and client-facing streams:

• End-to-End Delivery: Manage the full delivery lifecycle for software features, infrastructure upgrades, and system integrations from initial planning to release.
• Sprint & Agile Facilitation: Organize and lead Scrum/Kanban rituals—sprint planning, daily stand-ups, backlog grooming, and retrospectives.
• Cross-Team Alignment: Coordinate dependencies and maintain close communication between backend, frontend, DevOps, QA, and product stakeholders.
• Scope & Risk Management: Track project milestones, identify delivery risks early, resolve blockers, and communicate project status transparently to leadership.
• Requirements & Task Breakdown: Work with engineering leads and product owners to translate broad technical tasks and functional requests into clear user stories, acceptance criteria, and actionable work items.
• Process Optimization: Continuously refine team workflows and documentation to enhance development velocity and visibility.

Your AI & Automation Advantage

We believe AI is a powerful co-pilot for modern project management and development. We are looking for someone eager to use AI tools (such as Claude, ChatGPT, Cursor, and automated workflows) to supercharge daily productivity, streamline documentation, automate status tracking, and eliminate administrative friction.

Who You Are

You are a proactive, detail-oriented, and highly adaptable delivery professional who thrives in a fast-paced technical environment. You are:

• A Clear Communicator: Able to articulate complex technical dependencies, timelines, and risks clearly to both engineers and business stakeholders.
• A Problem-Solver: Self-motivated, resilient, and focused on unblocking bottlenecks quickly and pragmatically.
• A Tech-Savvy Organizer: Possess a sound understanding of modern software development life cycles (SDLC) and feel comfortable speaking the same language as developers and DevOps engineers.
• A Team Player: Foster high engagement, transparency, and a positive, collaborative engineering culture across distributed teams.

Qualifications

• English: Upper-Intermediate level or higher (both written and verbal communication).
• Experience: 2–4 years of commercial experience as a Project Manager, Delivery Manager, or Scrum Master in an IT/software development environment.
• AI: Hands-on experience implementing AI-driven automations or task-generation workflows in project tracking tools.
• Agile Proficiency: Deep practical knowledge of Agile frameworks (Scrum, Kanban) and modern project tracking software (Jira, Asana, Linear, or similar).
• Technical Literacy: Solid conceptual understanding of the software development lifecycle, APIs, deployment pipelines, CI/CD, and web technologies.
• Documentation Skills: Proven track record of creating well-structured project plans, technical task breakdowns, and tracking dashboards.

Bonus Points:

• Experience working in Fintech, Web3, Cryptocurrency, or High-Load SaaS platforms.
• Technical background (former developer, QA, or computer science degree).

We Offer

• Flexibility & Hubs: Flexible working hours with physical office access in Ukraine and Poland (Wroclaw).
• Health & Wellness: Medical Insurance in Ukraine and Multisport program in Poland.
• Time Off: Paid vacation, sick leave, and all official holidays.
• Growth & Support: Corporate English classes up to three times a week, alongside mentoring and educational programs.
• Contractor Support: Complete tax and accounting services provided for Ukrainian contractors.
• Equipment: The company provides all necessary high-end hardware and gear.
• Culture: Regular corporate activities (incredible parties, team-building, sports, and tech events) combined with an advanced bonus system.

About the Company

Our client is a financial technology services provider dedicated to expanding global access to digital assets by building innovative solutions in the cryptocurrency ecosystem. Their products provide exchanges, liquidity solutions, and enterprise-grade integrations for clients worldwide. Specialized in building Crypto, Web3, and various White-Label Solutions, we are looking for a skilled QA Automation Engineer to help scale our automation infrastructure and elevate our quality assurance strategy.

In this role, you will be a core member of our engineering team, helping establish testing standards to ensure our cutting-edge crypto solutions meet enterprise-grade performance and reliability metrics. You will have an excellent opportunity to help transform our QA processes by introducing automation to a rapidly growing organization.

What You'll Do

You will act as a key driver for automation on your team, applying your technical expertise to expand robust automation frameworks while collaborating with our existing QA members. Your main responsibilities will include:

• Automation Implementation: Take hands-on responsibility for implementing, maintaining, and scaling automation practices across our core financial and crypto products.
• Framework Development: Build and extend end-to-end automation test suites using Playwright and TypeScript.
• Test Reporting & Alerts: Configure and connect external test reporters (e.g., Allure, ReportPortal, TestDino) to pipe real-time test results and alerts directly into Slack.
• Team Collaboration & Guidance: Work closely alongside a dedicated team of QA Engineers, helping them align with automation goals, share technical knowledge, and adopt automated workflows.
• Pipeline Integration: Partner with developers and DevOps engineers to integrate automated tests directly into our build pipelines (such as GitHub Actions).
• Real-Time & Data Testing: Work on stability, responsiveness, and accuracy of data-heavy and real-time interfaces (such as WebSockets) across various browsers.
• API Validation: Test and validate backend endpoints, ensuring the stability and accuracy of our financial data feeds.

Your AI & Automation Advantage

We believe AI is a powerful co-pilot for modern testing. We're looking for an engineer who actively keeps up with the evolving AI testing landscape and latest Playwright updates. Practical experience using MCP (Model Context Protocol) servers to connect AI agents with local development or browser environments is a massive advantage!

Who You Are

You are a proactive, detail-oriented, and adaptable engineer who thrives in a fast-paced environment. You are:

• A Clear Communicator: You can effectively articulate quality risks and technical testing strategies to your QA peers, developers, and stakeholders.
• A Problem-Solver: You are self-motivated, resilient, and possess strong critical thinking skills to debug complex, distributed systems.
• A Peer Mentor: You enjoy collaborating, pairing with manual testers, and contributing positively to a team culture built on continuous improvement.
• A Tech Enthusiast: You have a curious mindset with a keen interest in (or passion for) blockchain, cryptocurrency, and financial technology.

Qualifications

• English: Upper-Intermediate level of English or higher (both written and verbal).
• Experience: 2-3 years of hands-on experience building and maintaining E2E test suites.
• Core Technical Skills:
  • Strong hands-on experience developing automation scripts using Playwright.
  • Proficiency in TypeScript or JavaScript.
  • Experience with API testing (RESTful APIs) and real-time data streaming technologies (WebSockets).
  • Good understanding of CI/CD concepts and automated test execution in development pipelines.
  • Proficient with Git version control and collaborative workflows.
• Education: A Bachelor's degree in Computer Science or a related field (or equivalent practical experience).

Bonus Points:

• At least a solid theoretical understanding (or practical experience) of how to test and validate GraphQL endpoints.
• Experience testing fintech applications, blockchain networks, smart contracts, or cryptocurrency exchanges.

We Offer

• Health & Wellness: Medical Insurance in Ukraine and a Multisport program in Poland.
• Flexibility & Infrastructure: Flexible working hours with access to modern offices in Ukraine and Poland (Wroclaw).
• Equipment: The company provides all necessary high-end hardware.
• Growth & Support: English classes up to three times a week, alongside corporate Mentoring and Educational Programs.
• Contractor Support: Complete tax and accounting services handled for Ukrainian contractors.
• Time Off: All official holidays alongside paid vacation and sick days.
• Culture: Regular corporate activities (incredible parties, team buildings, sports, and tech events) combined with an advanced bonus system.