DevBrother

About the Project 

We are building an AI-native administrative and compliance platform designed to transform complex legal, operational, and documentation workflows into automated, intelligent systems. Instead of dealing with fragmented legal processes, heavy manual paperwork, and outdated administrative portals, our platform leverages modern cloud infrastructure and LLM capabilities to streamline compliance, document analysis, and decision-making for businesses.

We are moving fast with a small, high-velocity team, which means your code directly drives core functionality used in demanding legal-administrative environments.

Role Overview 

We are expanding our core team and looking for a solid Full Stack Engineer (Mid+ or Senior) to step in, own critical features, and help us maintain momentum as the platform scales. You will collaborate directly with our founding engineers, tackling backend services and cloud architecture while handling nuanced, domain-heavy business logic.

Tech Stack

• Frontend: TypeScript, React, Next.js
• Backend: Node.js, NestJS, TypeScript, Prisma ORM
• Data & Queue: PostgreSQL, Redis, BullMQ
• Cloud & Infrastructure: AWS

What You’ll Do

• Develop, test, and maintain end-to-end features across our Next.js frontend and NestJS backend.
• Design resilient asynchronous processing pipelines and job queues using Redis and BullMQ for background tasks and data ingestion.
• Model relational data, optimize queries, and manage migrations with PostgreSQL and Prisma.
• Deploy, configure, and scale services on AWS.
• Translate nuanced legal and compliance business rules into maintainable, rock-solid application logic.

Requirements

• 3+ years of commercial full-stack experience with strong proficiency in TypeScript, React, and Node.js.
• Hands-on production experience with NestJS and Prisma ORM.
• Practical knowledge of relational database design (PostgreSQL) and background job processing (Redis / BullMQ).
• Solid experience deploying and managing cloud services on AWS.
• Strong English proficiency (Upper-Intermediate to Advanced): Essential for understanding complex legal, compliance, and administrative domain terminology directly within the requirements and codebase.

Nice to Have

• Background in mobile development (React Native is a major plus).
• Experience integrating LLM APIs or building AI-assisted features.
• Active use of AI-native engineering tools (Cursor, Copilot) to accelerate development.

Why Join Us?

• Meaningful Work: You are solving a universal human problem that the tech industry has ignored for too long.
• Medical Insurance in Ukraine and the 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 Project: We are building a massive, proprietary Ticketing & Event Management Ecosystem for the US market. This is NOT a standard booking site. We are engineering a custom, high-load platform from scratch. The ecosystem includes:

• Complex Web Platform: Handling Reserved Seating schemes, Camping bookings, and deep Event Management logic.
• On-Site Operations: Gate Scanning functionality and Ticket Printer control. We develop the scanning logic and integrate it with physical hardware for printing.

• Mobile Ecosystem: A feature-rich mobile application for organizers and attendees.

   

We don't use "out-of-the-box" solutions. We build our own logic to handle heavy complexity. If you prefer solving technical puzzles rather than integrating standard plugins, this is your place.

⚠️ THE CULTURE (Read this first): We are a US-based startup in an aggressive growth phase. We are looking for a Founding Engineer mindset.

• Intensity: We work with the US market. Late evening calls (European time) are standard to sync with the founders.
• Ownership: You don't just "close tickets." You own the feature from the database architecture to the UI. If the Gate System goes down on a Saturday night during a festival, you are the one helping to fix it.
• No "Code Monkeys": We discuss business goals. You need to understand why we are building a feature. If a requirement doesn't make sense technically, we expect you to push back and propose a better solution.

Tech Stack: React, Remix, Tailwind UI, Node.js, NestJS, TypeScript, PostgreSQL (TypeORM), GCP infrastructure.

Requirements:

• 5+ years of engineering experience, with deep expertise in the Node.js/React ecosystem.
• Modern Stack Mastery: You are proficient with NestJS on the backend and React/Remix + Tailwind UI on the frontend.
• Architectural Grit: Experience building custom complex systems (booking engines, CRM, logistics). You know how to design database schemas (PostgreSQL/TypeORM) that won't break under load.
• Integrations: Experience with payment processors (Stripe, etc.) and—crucially—an interest in working with hardware integrations (printers, scanners, IoT).
• US Startup Availability: You are comfortable working late hours and staying responsive during critical festival launches.
• Mobile Awareness: Knowledge of mobile development (React Native) is a plus.
• English: Upper-Intermediate or higher. You must be able to explain complex technical trade-offs to the founders.

Responsibilities:

• Engineer the Core: Design and develop the backend and frontend for the Ticketing Platform.
• Solve Hard Problems: Implement logic for Reserved Seating, interactive maps, and complex order flows.
• Hardware & Gate Logic: Write code that interacts with the physical world (scanning tickets, printing).
• Performance: Optimize the app to handle traffic spikes during ticket sales drops.
• Quality & DevOps: Write testable code, manage CI/CD pipelines, and deploy to GCP. You break it, you fix it.

We Offer:

• High Reward for High Performance: Competitive salary + Advanced Bonus System (We reward those who build the business with us).
• Real Engineering Challenge: No CMS wrappers. Pure custom development on an actual stack.
• Direct Impact: Your code runs the show at real festivals in the US.
• Medical Insurance in Ukraine and Multisport program in Poland.
• Offices in Ukraine (Kyiv, Kharkiv) and Poland (Wroclaw) or Remote.
• Paid vacation, sick leaves, and official holidays.
• Legal & Accounting services.
• The company provides all necessary equipment.
• English classes and Education reimbursement (50%).

About the Product & Team

Our client is an innovative tech startup building an AI-powered platform for autonomous browser and web workflow automation. The platform combines advanced LLMs with browser automation engines to execute complex, multi-step web tasks and integrate directly into enterprise business workflows for clients across the US and Europe.

You will step in as the lead design authority and take full ownership of our product UX/UI. Your mandate is to translate intricate engineering logic—autonomous AI agents, execution logs, dynamic DOM interactions, and data mapping pipelines—into clean, predictable, and scalable enterprise-grade user experiences.

Role Overview

We are seeking a Senior UI/UX Product Designer with exceptional English fluency and a forward-thinking approach to AI-native product design.

In this role, you will lead the product interface strategy from concept to execution. You will design data-dense dashboards, visual workflow builders, AI interaction patterns, and complex configuration surfaces. With high autonomy, you will partner directly with the founders, CTO, and engineering teams, articulate strategic design decisions, and engage international enterprise customers to refine the product experience.

Key Responsibilities

• Lead End-to-End Product Design: Own the UX architecture and visual design across all platform modules—from discovery, journey mapping, and wireframes to production-ready Figma components and interactive prototypes.
• Architect Complex Workflows & AI UI: Design intuitive, robust interfaces for highly technical features, such as workflow visualizers, agent execution logs, error-handling states, dynamic selectors, and integration setups.
• Design System Architecture: Establish, scale, and govern a multi-product design system in Figma, utilizing modern tokens, reusable component libraries, and strict design-to-code alignment.
• AI Tooling Integration: Actively leverage next-generation AI design and prototyping tools into your daily workflow to accelerate ideation, automate asset production, and validate design concepts rapidly.
• Cross-Functional Leadership: Partner closely with engineering and product leadership to define specifications, resolve edge cases, ensure technical feasibility, and oversee high-fidelity implementation.
• Stakeholder & Customer Facing: Drive design reviews with leadership, present rationales confidently in English, and participate in customer discovery calls or usability tests with US/EU clients.

Requirements

• 7+ Years of Experience: Proven track record leading UI/UX product design for complex B2B SaaS platforms, developer tools, workflow automation engines, or data-intensive web applications.
• English Mastery (C1/C2): Near-native or fully fluent verbal and written communication. Absolute comfort presenting to executive stakeholders, defending UX choices, and leading user discussions independently.
• Advanced Figma & Design Systems: Expert command of Figma (auto-layout, component architecture, nested variants, design tokens, interactive prototyping, and variables).
• AI-Native Workflow: Demonstrated active daily use of modern AI design and prototyping tools (e.g., Cursor, v0, Claude, Lovable, or AI-driven Figma plugins) to streamline workflows and rapidly build prototypes.
• Systems Thinking & Edge-Case Rigor: Strong ability to deconstruct complex technical systems into coherent user flows, accounting for error recovery, async processing states, and platform scalability.
• Autonomy & Strategic Mindset: Ability to drive product design independently with minimal direction, transforming ambiguous business goals into polished, validated user interfaces.

Nice to Have

• Prior experience designing for AI agents, prompt-based interfaces, or low-code/no-code visual workflow builders.
• Working understanding of front-end web technologies (HTML, CSS/Tailwind, React component models) to ensure seamless engineering handoffs.
• Background in early-stage, fast-paced venture-backed startup environments.

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.

We are building a revolutionary AI-based image and video processing platform and are looking for an Integrations Engineer to help expand our customer base through your technical expertise. We are open to candidates who can contribute significantly to developing our solutions and improving the customer experience.

​

Role Overview
​The responsibilities of a Solutions Engineer include sharing expertise on the product and its integration—specifically focusing on front-end understanding and a strong overall grasp of web technologies. You will use your analytical and interpersonal skills to guide our clients and maximize the value they gain from using our technology.
 

​The ideal candidate should have excellent communication and interpersonal skills, as well as the ability to meet KPIs and deadlines, demonstrating strong analytical abilities.

​Key Responsibilities

• Be the Product Expert: Act as the product expert and trusted advisor that clients can turn to for guidance on maximizing value from our technology.
• Expand Technical Expertise: Gain experience in front-end and back-end development, web optimization, performance best practices, AI/ML, cloud computing, media compression, and CDN.
• Support & Troubleshoot: Support customers’ technical queries, solve integration issues, and demonstrate the possibilities of the technology.
• Onboard Customers: Manage the technical onboarding of new customers and translate their desired outcomes into an implementation plan that will provide value.
• Define Requirements: Define new technical requirements for integration and prioritize project timelines.
• Cross-functional Collaboration: Ensure all customer requests and issues are handled promptly, working in collaboration with relevant teams including Customer Success, R&D, Sales, and Marketing.
• Quality Assurance: Utilize QA practices to ensure high-quality integrations

Requirements

• Language Proficiency: Strictly C1-C2 English level required.

  Candidates at an Upper-Intermediate (B1-B2) level will not be considered. Exceptional written and verbal presentation skills are a must.

• Working Hours: High flexibility and ability to operate within the US time zone.
   

​Technical Skills:

• 5+ years of experience as a Solutions Engineer, Front-End professional, or in QA within a global, fast-paced environment.
• Experience with Full-Stack technologies (e.g.,Node.js, React, Angular) or QA skills (e.g., automated testing, performance testing).
• ​Hands-on experience with web and cloud technologies.
• Experience with basic debugging/QA tools (e.g., Chrome Dev Tools).
• Problem Solving: Ability to effectively assess and quickly resolve technical issues while working with both technical and non-technical teams. High-level technical, project, and problem-solving skills.

• Mindset: Strong critical thinking and analytical skills with an entrepreneurial, proactive, and result-oriented mindset. Highly motivated, a fast learner, and open-minded.

   

Nice to Have​

• BS, BA, BEng degree or equivalent in Computer Science or a related field.
• ​Experience with Full-Stack technologies (e.g., Node.js, React, Angular) or automated/performance QA testing skills.
• ​Relevant certifications, courses, or experience in adjacent technologies.

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.

We are a fast-growing, deep-tech product company that is transforming the digital commerce landscape by leveraging advanced AI to optimize visual media delivery. We work with premium enterprise brands globally, solving critical performance infrastructure challenges.

We are looking for a strategic RevOps specialist to take complete ownership of our Revenue Operations engine. Your main goal will be to eliminate operational friction and connect sales, marketing, partnerships, and finance into a single, automated, data-driven ecosystem.

Profile We Are Looking For

• The Systems Thinker: You don't just build workflows; you build compounding revenue engines. You intuitively understand how a marketing handoff impacts sales execution and long-term customer success.
• AI-Native Mindset: You keep up with technological trends and design data structures with an autonomous, agentic future in mind.
• High-Agency Owner: You operate effectively with high autonomy, working directly with executive leadership (SVP of Sales, CEO, CTO) in a fast-paced environment where execution is key.

Qualifications & Requirements

• GTM Expertise: Strong track record of building and managing complex revenue operations stacks across sales and marketing teams.
• HubSpot Expert: Advanced, hands-on mastery of HubSpot as a primary system of record.
• Stack Integration: Practical experience deploying Partner Relationship Management (PRM) software and integrating specialized RevOps tools.
• Technical Foundation: Practical experience with API integrations, complex data modeling, and automated data-quality governance.
• Analytics: Strong background in pipeline analytics and data-driven revenue forecasting.
• Communication: Exceptional presentation skills; fluent English (C1-C2 level) is strictly required.
• Flexibility: Ability to align working hours with an overlap in US time zones.

Nice to Have

• Practical exposure to agentic AI, Model Context Protocol (MCP), or context graph systems (such as Sybill).
• Proficiency with Google Workspace and Slack productivity environments.
• ​Relevant certifications, courses, or experience in adjacent technologies.

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.