DevBrother

We believe that no one should have to spend the months following a loss buried in paperwork and legal jargon. Today, end-of-life logistics are a fragmented mess of "manual grunt work" that compounds the pain of grieving.

We are building the first AI-native platform designed to bring order to this transition. By synthesizing software and automation, we provide families with a single source of truth to navigate the legal, financial, and logistical aftermath of a death. We are tackling the last underserved category in the life-event space, building the essential platform that families will rely on to handle the "in-between work" with dignity and speed.

The Role

As a Founding Engineer, you will build the platform from zero to one. You will be the first technical hire, owning the core architecture that powers the post-loss experience.

This is a high-ownership role where you will translate messy, real-world workflows into elegant software. You will work directly with the founder to define how AI is embedded into the product from the start. There are no legacy systems and no handoffs—just real responsibility from day one.

This role is backend-leaning and workflow-heavy. It is ideal for an engineer who enjoys building systems that handle long-running, asynchronous, and complex real-world processes.

What You Will Build

• Orchestration Systems: Design core backend systems that manage complex, long-running legal and financial workflows.
• Real-World Data Models: Build APIs and schemas grounded in the constraints of institutional, financial, and legal systems.
• AI-Powered Tooling: Develop internal tools that use LLMs to manage long-running cases, summarize state, and automate document-heavy workflows.
• Product Surfaces: Create interfaces that provide families with clear visibility into their progress, blockers, and next steps over time.

Who You Are

• Senior Technical Background: You are a backend-leaning or full-stack engineer with a solid AI engineering background who has owned and shipped real production systems.
• Architectural Judgment: You have the experience to make foundational decisions that balance speed with long-term scalability.
• Mission-Driven: You are motivated by building software that meaningfully assists people during their most difficult life moments.
• Ownership Mentality: You don't wait for a ticket; you identify the most important problem and solve it.
• Note: No prior experience with estate or legal systems is required. You will be deeply onboarded into the domain by a team with hands-on experience.

Why Join Us?

• Zero to One: You will have a defining influence on the product, the tech stack, and the engineering culture.
• Meaningful Work: You are solving a universal human problem that has been ignored by the tech industry for too long.
• Compensation & Impact: As the first engineer, you will receive significant compensation, additional bonuses, and work as a true partner to the founder.
• 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.

We are looking for a motivated General QA Engineer to join our security product team. Our mission is to provide users with a secure and private online experience.

Because our product footprint is diverse—spanning Web, Mobile, and Desktop (macOS & Windows)—we utilize a hybrid testing strategy. You will be responsible for building out robust automation using Cypress (JS/TS) while leveraging RainforestQA for comprehensive coverage. If you are a detail-oriented tester who loves tackling the unique challenges of cross-platform security software, we want to hear from you.

Responsibilities

• Automation Development: Build and maintain scalable end-to-end test suites using Cypress with JavaScript/TypeScript.
• Hybrid Testing: Manage and execute testing workflows within RainforestQA, ensuring manual and automated scripts are optimized and up to date.
• Multi-Platform Focus: Perform thorough testing across our entire ecosystem: Web, Mobile, and Desktop applications (macOS & Windows).
• Test Strategy: Create and execute detailed test plans and cases that evaluate security, privacy features, and overall usability.
• Bug Lifecycle: Collaborate closely with developers to identify, document, and track defects, ensuring high-quality resolutions on time.
• Reporting: Monitor and report on quality metrics, including test coverage and results, to keep the team informed on product health.
• Agility: Adapt quickly to changing priorities and deadlines within a fast-paced, Agile environment.

Requirements

• 3+ years of experience in Quality Assurance, software testing, or a related role.
• Cypress Expertise: Proven experience writing and maintaining automation scripts using Cypress and JavaScript/TypeScript.
• Tool Proficiency: Familiarity with RainforestQA (or a strong desire to master it) and other modern QA testing frameworks.
• Platform Experience: Experience testing Desktop applications (macOS and Windows) as well as Web and Mobile SaaS products.
• QA Fundamentals: Strong understanding of testing methodologies, best practices, and the software development lifecycle (SDLC).
• Communication: Upper-Intermediate English or higher; ability to articulate technical issues clearly to both engineers and stakeholders.
• Soft Skills: Excellent analytical skills, keen attention to detail, and the ability to work effectively within a collaborative team.

🎁 We Offer

• Growth: Daily support for your technical and personal growth through mentoring and educational programs.
• Team Culture: A professional and friendly environment where help is always available.
• 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.

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. We are looking for a skilled Python/Data Analyst to help us translate complex financial and blockchain data into actionable insights and high-performance solutions.

In this role, you will be a core member of our engineering team, solving complex technical puzzles and building robust data models in a fast-paced environment.

What You'll Do

You will be a key builder in our data lifecycle, applying your technical expertise to optimize our core products. Your main responsibilities will include:

• Data Analysis & Modeling: Develop and maintain data pipelines and analytical models for our exchange and liquidity platforms using Python.
• Insight Generation: Translate complex financial concepts and large datasets into intuitive reports and actionable business insights.
• Collaboration: Work closely with product owners, backend engineers, and stakeholders to translate requirements into fully functional, enterprise-grade data solutions.
• Performance & Optimization: Optimize data queries and processing scripts for maximum performance and scalability, paying close attention to real-time crypto interfaces.
• Quality Standards: Write clean, testable, and efficient Python code, actively participating in code reviews and sprint planning.

Your AI & Automation Advantage

We believe AI is a powerful co-pilot for modern development. We’re looking for someone eager to use AI to supercharge their data analysis, automate repetitive tasks, and stay ahead of the curve.

Who You Are

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

• A Clear Communicator: You can effectively articulate complex technical decisions and data findings to both technical teammates and non-technical stakeholders.
• A Problem-Solver: You are self-motivated, resilient, and have strong critical thinking skills to tackle complex technical puzzles.
• A Tech Enthusiast: You have a curious mindset with a strong interest in (or passion for) blockchain, cryptocurrency, and financial technology.
• A Team Player: You value collaboration and feedback, contributing positively to the team's shared goals and engineering culture.

Qualifications

• English: Upper-Intermediate level or higher (both written and spoken).
• Experience: 3+ years of professional experience in data analysis or software development, with a strong focus on Python.
• Core Technical Skills:
  • Proficiency in Python and its data libraries (e.g., Pandas, NumPy).
  • Strong experience with SQL and managing complex databases.
  • Familiarity with RESTful APIs and real-time data communication (e.g., WebSockets).
  • Proficient with Git version control and collaborative workflows.
• Education: Bachelor’s degree in Computer Science, Data Science, Mathematics, or a related field (or equivalent practical experience).

We Offer

• Flexibility & Location: Offices in Ukraine and Poland (Wroclaw) with flexible working hours.
• Health & Wellness: Medical Insurance in Ukraine and Multisport program in Poland.
• Time Off: Paid vacation, sick leaves, and all official holidays.
• Professional Development: English classes up to three times a week, plus mentoring and educational programs.
• Support: Tax and accounting services for Ukrainian contractors.
• Equipment: The company provides all necessary high-end equipment.
• Culture: Regular corporate activities, including corporate parties, tech events, and an advanced bonus system.

We are building the next generation of AI Agentic Marketing Solutions specifically for the Game Development industry. We don’t just build simple chatbots; we build autonomous agents that plan, execute, and optimize User Acquisition (UA) and marketing campaigns for gaming studios.

We already have our technical leadership in place. Now, we are looking for a highly autonomous Senior Engineer who loves "getting their hands dirty" with complex agentic logic and scaling our AI platform.

The Role: Builder First

This position is for those who are passionate about coding and want to remain in a technical, individual contributor role. We need a "crafter" who enjoys diving into agent architectures, optimizing RAG pipelines, and writing high-performance code without the distraction of people management or "ivory tower" meetings.

Our Stack: Python (FastAPI, AsyncIO), LangChain / LangGraph, Redis, PostgreSQL, AWS.

Key Responsibilities

• Develop AI Agents: Design and implement complex, stateful workflows using LangGraph.
• Hands-on Engineering: Serve as a primary contributor to the core Python codebase. We expect daily commits and rapid iteration.
• Production-Grade AI: Work on agent reliability, mitigate hallucinations, manage agent memory systems, and build robust evaluation loops.
• Integrations: Connect AI agents with gaming metrics, store APIs (App Store/Google Play), and ad platform dashboards.
• Performance Tuning: Optimize LLM usage for latency and cost-efficiency.

Requirements

• Python Mastery: 5+ years of professional experience in Python. Deep expertise in AsyncIO, Pydantic, and FastAPI.
• AI/LLM Expertise: Proven experience with LangChain or LangGraph (essential). You understand the transition from simple prompts to complex, autonomous agentic reasoning.
• Solid Engineering Foundation: Strong knowledge of architectural patterns, event-driven systems (NATS/Kafka), and Vector Databases (Pinecone, Weaviate, etc.).
• Startup DNA: You prefer "shipping today" over "perfecting tomorrow." You thrive in a fast-paced environment where speed is a core feature.
• GameDev Interest: A genuine interest in the gaming industry and its KPIs (LTV, ROAS, Retention).

What We Offer

• Focus on Code: Minimal bureaucracy. Your time is spent solving hard technical problems, not in management meetings.
• High Impact: Your code directly defines the "intelligence" of our marketing agents.
• Elite Team: Work alongside a Technical Lead and other senior experts who value excellence and relentless improvement.
• High Reward for High Performance: Competitive salary + Advanced Bonus System (We reward those who build the business with us).
• A professional team that has your back. We work hard, but we support each other 100%.
• Medical Insurance in Ukraine and Multisport program in Poland.
• Offices in Ukraine (Kyiv, Kharkiv) and Poland (Wroclaw) or Remote.
• All necessary equipment and workstation space.
• Legal & Accounting services.
• English classes and Education reimbursement.
• Incredible corporate parties and other activities (when we aren't saving the world).

Are you ready to join the AI revolution? We are looking for an ambitious Sales Manager to join a fast-growing Canadian startup based in Toronto. Our company is disrupting the content creation industry by using Large Language Models (LLMs) and proprietary AI workflows to create high-quality video content.

We are currently a team of 10, but our goals are big: we plan to hire one new sales expert every month to build a powerhouse team of 10 sales professionals within the next year. This is your chance to be at the forefront of a remote sales department in Ukraine.

What You Will Do

• Drive Outreach: Use Upwork as your primary tool to identify and connect with potential clients.
• Target the Right Audience: Engage with Marketing and SMM agencies to show them how our AI-driven video services can scale their business.
• Close Deals: Manage the sales cycle from the first message to the closing call.
• Handle Inbound: Process a steady stream of incoming leads.
• Consultative Selling: Educate clients on the benefits of AI-powered video production.

Who You Are

• Fluent in English: You’ll be working with international clients and a Canadian team, so strong verbal and written communication is a must.
• Sales Hunter: You have experience in B2B sales (experience with Upwork is a significant plus).
• Tech-Savvy: You are curious about AI, LLMs, and new technologies.
• Ambitious: You aren’t just looking for a job; you want to grow into a top-tier earner in a global company.

What’s in it for You?

• Competitive Compensation: Base Salary and On-Target Earnings (OTE).
• Flexibility & Stability: Work for a Canadian company, gain independence from the local environment, and work in a stable, future-proof niche.
• Flexible Start: We have the option to start part-time (evening shifts) if you are currently employed, intending to transition to full-time as you see the results.
• Growth: Be part of a team that is scaling 10x over the next 12 months.

Work Format

• Location: 100% Remote (Ukraine).
• Shift: Flexible (standard or evening shifts to align with North American time zones).
• Medical Insurance in Ukraine and Multisport program in Poland.
• Offices in Ukraine (Kyiv, Kharkiv) and Poland (Wroclaw) or Remote.
• 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, and enterprise-grade integrations for clients worldwide. Specialized in building Сrypto, Web3, and various White-Label Solutions, the company is now looking for a skilled DevOps Engineer to support and automate their general infrastructure.

In this role, you will be a core member of the engineering team, applying your technical foundation to a rapidly growing organization. You will thrive on solving complex technical challenges, writing clean automation, and collaborating in a fast-paced environment.

What You'll Do

You will be a key builder in the development lifecycle, focusing on automating established systems and delivering robust infrastructure. Your main responsibilities include:

• Infrastructure Delivery: Work closely with development teams to deliver infrastructure using Terraform CDKTF. Cross-team communication is a key part of the job!
• Pipeline Maintenance: Maintain and extend the build pipeline, including CI architecture in GitHub Actions, building container images with Puppet and Packer, and resolving service issues in collaboration with developers.
• Tooling & Automation: Develop TypeScript CLI tooling to automate all facets of your job responsibilities.
• Optimization: Ensure the stability and reliability of the platform's general infrastructure.

Your AI & Automation Advantage

We believe AI is a powerful co-pilot for modern development. We're looking for someone eager to use AI to supercharge their work and enhance infrastructure automation.

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 have strong verbal and written English skills and can effectively articulate complex technical decisions to both technical teammates and stakeholders.
• A Problem-Solver: You are self-motivated, resilient, and enjoy tackling complex technical puzzles to build robust solutions.
• A Quick Learner: You have a curious, tech-savvy mindset and are either already in the crypto space or eager to enter it.
• A Team Player: You value collaboration and feedback, contributing positively to the team's shared engineering culture.

Qualifications

• Experience: 4+ years of professional experience in Platform Engineering, DevOps, or a related field.
• AWS Expertise: 3+ years of hands-on experience working with AWS.
• Core Technical Skills:
  • Proficiency with Linux and TypeScript.
  • Strong experience with Terraform CDKTF.
• English: Strong verbal and written communication skills (Upper-Intermediate level or higher).

Nice to Have:

• Experience or knowledge in the Web3/Blockchain area.
• Familiarity with Puppet, Packer, Travis, or Serverless/ECS architectures.

We Offer

• Flexible working hours and all official holidays.
• Time Off: Paid vacation and sick leaves.
• Support & Growth: English classes (up to 3x weekly), mentoring, and educational programs.
• Perks: Advanced bonus system.
• Community: Regular corporate activities, including team buildings, tech events, and sports.

About project

The product is redefining post-acute care by replacing fragmented, manual workflows with intelligent AI-driven automation. We help healthcare providers manage patients, not paperwork, by delivering robust throughput and intelligence across clinical, financial, and compliance operations. 

The Role: 

We are looking for a product-focused Full-Stack Engineer to join our team. You will be a key player in building our system, which involves developing sophisticated APIs that interface with Electronic Medical Records (EMR) and building advanced web-scraping tools for healthcare referral platforms.

This isn't just a coding role; we are looking for an engineer who understands the "Why" behind the "What." You will work in a high-efficiency environment where AI tools (Cursor, Gemini, Claude Code) are part of the daily workflow to maximize output and quality.

Technical Stack

• Frontend: React (Proficient)
• Backend: Go (Primary/Preferred) or Node.js
• Languages: TypeScript (Strongly Preferred)
• Workflows & Scraping: Playwright, Temporal (Airflow experience is a plus)
• Data: EMR website scraping, PDF parsing, and data point extraction
• Architecture: System Design focus; Cloud-native development

What You’ll Do

• Automate Workflows: Design systems that remove data access bottlenecks and automate clinical data entry.
• Build the "Injection Track": Develop and maintain APIs that reliably scrape and sync data from EMRs and referral platforms in real-time.
• Collaborate via Design: Participate in "1s design discussions" to align on architecture before implementation.
• Leverage AI: Use modern AI-assisted development tools (Cursor, Claude Code, LLM wrappers) to build faster and smarter.
• Take Ownership: Move beyond task execution to ownership—meaning you don't just follow instructions; you understand the business context and ensure the solution fits the need.

What We’re Looking For

• 4+ Years Experience: You have a solid foundation in full-stack development and have worked on product-level code.
• Communication & Alignment: You understand that "going away and building the wrong thing" is a failure. You prioritize constant "connect" and alignment with the team.
• Problem Solvers: You are comfortable with the "messy" side of data—parsing PDFs, scraping complex websites, and ensuring data reliability.
• AI-Forward: You are already using (or eager to master) AI coding tools to 2x your productivity.

Our Culture & Philosophy

• Context is King: We provide clear business requirements and motivation. We expect you to understand the "Why" to build better "Whats."
• Execution Levels: We expect our engineers to operate at an "I do" level—taking a problem and owning the solution from design to deployment.
• Efficient Growth: We value unique perspectives and a proactive approach to work.

We Offer:

• 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.

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:

• 4+ 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%).