#вакансия #vacancy #remote #fulltime #lookfor

Vacancy: Middle+ Prompt Engineer, remote
Company: MAD DEVS
Salary: 4000-4500$ gross

We're seeking a Prompt Engineer to join our team. This is your chance to apply your skills to a project with real-world impact.

Responsibilities:
- System Prompt Architecture: Design complex, structured system prompts. Use Chain-of-Thought and Few-Shot techniques to solve complex logic tasks (e.g., "Diagnose this car issue based on the user's description")
- Structured Generation (JSON): Engineer prompts that reliably output valid JSON for API integrations. You must ensure the model follows schema constraints 100% of the time
- Voice Persona Design: Control the agent's tone and pacing. Use instructions to influence output, making the agent sound empathetic, professional, or urgent as needed
- Jinja2 Integration: Embed dynamic data into prompts. You must write prompts that are robust enough to handle empty variables or unexpected data formats ({{ user_history }})
- Optimization: Continuously A/B test prompts to reduce hallucinations and improve conversion rates (e.g., "Did the agent successfully book the meeting?")

Requirements:
- Deep LLM Expertise: You know the difference between GPT-4 and Claude 3 Opus. You understand token limits, temperature, and context windows
- Technical Proficiency: You are comfortable working with JSON and Markdown. You can write basic Jinja2 templates
- Analytical Mindset: You don't just "guess" improvements; you analyze conversation logs to find the root cause of errors
- Linguistic Precision: Excellent command of English to catch subtle nuances in interaction
- Language: Russian (Native/Fluent) and English (B2+)

Contact us: @recruiter_maddevs

#вакансия #fulltime #remote #python #reactnative

Vacancy: Full-Stack Engineer (React Native+Python (FastAPI)), Remote
Company: Mad Devs
Salary: 4000 - 4500$ gross
Work format: Full-time

We are looking for a Full-Stack Engineer to lead the development of a health tech platform for biomarker tracking.

Responsibilities
- Design, develop, and maintain the mobile application using React Native
- Build and optimize the FastAPI backend to handle health data processing
- Implement automated data extraction from lab reports using Vision APIs and OCR
- Architect and manage PostgreSQL databases for secure health record storage
- Integrate external services including Stripe, ShipStation, and SendGrid
- Own the full deployment pipeline and ship an MVP quickly

Requirements
- 5+ years of experience in full-stack development with a focus on mobile applications and backend systems
- React Native: Strong experience building and maintaining cross-platform applications
- Python (FastAPI): Solid experience developing REST APIs and backend services with a focus on performance and scalability
- PostgreSQL: Proficiency in database schema design, complex queries, and migrations
- AI-Assisted Development: Hands-on experience using AI coding tools (e.g., Cursor, Claude Dev, or similar) to improve development speed, code quality, and refactoring processes
- Figma to Code: Experience translating design mockups into responsive, high-quality user interfaces
- Third-Party Integrations: Practical experience integrating external services such as Stripe, ShipStation, SendGrid, Firebase, or similar platforms
- Languages: English - Intermediate/Upper-Intermediate (B1-B2); Russian- Upper-Intermediate (B2)
- Work Format: Full-time
- Location: any, except Russia and Belarus

Will be a plus
- Experience with OCR, Google Cloud Vision API, or Vision-Language Models (VLMs)
- Experience with HTML-to-PDF or similar report generation libraries
- Experience managing releases on the App Store and Google Play
- Domain Expertise: Background in Health Tech, Biotech, or subscription-based mobile products

Contact: @recruiter_maddevs

#вакансия #vacancy #python #senior #lookfor #remote #pd

Vacancy: Senior Python Developer
Company: Mad Devs
Salary: 5000-6000$ gross
We are looking for a Python developer for a b2b project that is an actively developing product

Responsibilities:
- Developing microservices using Python, FastAPI, Gunicorn, and other relevant technologies
- Deploying services on the Google Cloud platform, utilizing the Google Cloud CLI
- Collaborating with cross-functional teams to understand business requirements and translate them into technical solutions
- Writing clean, maintainable, and efficient code that follows best practices
- Organizing Cl/CD processes to enable smooth and automated deployments
- Collaborating with DevOps and infrastructure teams to optimize the deployment pipeline
- Conducting code reviews and providing constructive feedback to team members.

Our expectations:
- Proficiency in Python programming language (7+ years)
- Language Proficiency: English at B2-C1 level, Russian at B2 level.
- Experience in designing and developing APIs, preferably using FastAPl
- Strong knowledge of microservice architecture and design patterns
- Proficiency in working with databases such as Postgres, Redis, and MySQL
- Experience with containerization using Docker and Docker Compose
- Familiarity with Google Cloud Platform. including deployment and management of services
- Knowledge of Lex-Yacc Parser and Linux will be advantageous.
- Familiarity with Google Kubernetes Engine (GKE) is a plus
- Strong understanding of CI/CD processes and tools
- Excellent problem-solving and debugging skills.
- Strong communication and collaboration skills to work effectively in a team environment
- Location: any, except Russia and Belarus

Contact: @recruiter_maddevs

#вакансия #vacancy #remote #fulltime #lookfor #junior #ML #NLP

Vacancy: Junior+ ML Engineer, remote
Company: MAD DEVS
Salary: 1500$ gross

We are currently engaged in a B2B project in which we are actively developing a product with a broad user base. We have the privilege of working closely with a team of highly skilled professionals, including designers, sales managers, and business analysts.

Required Skills:
- Minimum 1+ year of commercial experience with NLP and LLMs
- Familiar with technologies: Python, SQL, Pandas, Django, Pydantic, SQLAlchemy, Sklearn, PyTorch, Transformers, Git, BitBucket, CI / CD, Docker, OpenAI API, LangChain, LangGraph, LangSmith, Airflow, BigQuery
- Knowledge of basic machine learning algorithms and metrics
- Experience implementing machine learning models in a production environment
- Familiarity with software development and delivery processes. Understand the key steps involved
- Can generate clear and achievable goals for machine learning tasks/projects
- Experience working with big data and systems to process it
- Know how to use data analysis to identify insights and patterns that can help solve business problems
- Knowledge of basic machine learning algorithms and metrics
- Experience implementing machine learning models in a production environment
- Experience developing agent systems based on popular frameworks
- B2 English level, fluent Russian

Responsibilities:
- Develop and implement machine learning algorithms
- Transfer machine learning models from development to real-world application
- Compare different approaches to solve complex business problems
- Collaborate with customers to identify their problems and opportunities for solving them using machine learning tools
- Develop algorithms for recommendation and ranking systems
- Develop intelligent assistants
- Keep models and instructions for language models up to date

It will be a plus:
- Experience in applying hyperparametric optimization techniques to improve model performance
- Ability to monitor models in production
- Experience in the full ML model delivery cycle: from data collection to delivery to production and continuing support; understanding of the technical background of deliveries

Contact us: @recruiter_maddevs

#вакансия #fulltime #remote #devops

Vacancy: Senior DevOps Engineer
Company: Mad Devs
Salary: 3500-5000$ gross
Work format: remote/full-time

About Us: Mad Devs is a full-stack team specializing in developing and administering large-scale IT products across diverse industries. Many of our products operate in Europe, the USA, and countries across Southeast Asia. We are passionate about tackling complex challenges and delivering innovative solutions that make a meaningful impact globally.

Required Skills:
- AWS Experience: 2+ years of hands-on experience in commercial AWS projects.
- Cloud Mastery: Deep understanding of cloud concepts and experience developing secure, highly available cloud solutions.
- Cost Optimization: Proven track record in optimizing infrastructure costs.
- Terraform Expertise: 2+ years of extensive experience with Terraform, including developing custom modules and implementing multi-account structures.
- EKS Proficiency: Practical experience with EKS in commercial projects, understanding its nuances.
- Monitoring and Incident Management: Proficiency in setting up and managing monitoring, logging, alerting systems, and incident response.
- Infrastructure Deployment: Experience deploying test environments and infrastructure for backend, frontend, and mobile applications.
- Language: English B2 level or higher, Russian B2 level or higher
**
Desired Experience:**
- AWS Certification: AWS SysOps Administrator, Developer, or Architect certifications are a plus.
- Compliance Experience: Experience building infrastructure compliant with HIPAA, GDPR, PCI DSS, ISO 27001, CIS.
- Ansible Experience: Hands-on experience with Ansible.
- AWS Tools: Experience with AWS CodeCommit, AWS CodeBuild, AWS CodeDeploy.

Write to us: @recruiter_maddevs

#вакансия #vacancy #frontend #senior #lookfor #remote #react

Vacancy: Lead Frontend Developer
Company: Mad Devs
Salary: 4000 - 6500$ gross
We are looking for a Frontend developer for a b2b project that is an actively developing product

Our expectations:
- React Expertise: At least 7+ years of experience with React (experience with the latest version will be a plus)
- Lead Expertise: At least 3+ years of experience
- TypeScript Knowledge: Extensive experience with TypeScript
- JavaScript Knowledge: Extensive experience with JavaScript
API Interaction: Familiarity with APIs, particularly in Python
- Version Control: Solid understanding of Git (including sub-modules) and Bitbucket
- Language Proficiency: English proficiency at B2-C1 level and Russian at B2 level
- Location: any, except Russia and Belarus

Responsibilities:
- Collaborative Development: Work closely with a team of developers of varying skill levels
- Innovative Contribution: Enjoy influencing product direction, proposing improvements, and thriving in an ever-changing roadmap
- Customer Interaction: Confidently work with complex clients, providing well-argued solutions
- Ownership and Accountability: Take full responsibility for delivering your work efficiently, asking questions to ensure the right outcomes
- Team Communication: Understand the bigger picture and collaborate with teammates to deliver features to users effectively

Contact: @recruiter_maddevs

#vacancy #remote #fulltime #job #designer #marketing

Web and graphic designer in marketing
Company: Mad Devs
Salary: to 800$
Remote and full-time

About us
Mad Devs is a full-stack team specializing in developing and administering large-scale IT products across various industries. Many of our products are used in Europe, the USA, and Southeast Asia. We are passionate about tackling complex challenges and delivering innovative solutions that make a significant global impact.

Who and where are we looking for:Who and where are we looking for:
🔸Web Design Experience: At least one year of experience as a web designer, preferably in the IT industry
🔸 Portfolio: A strong portfolio demonstrating your work (required)
🔸 Language Proficiency: English proficiency at B2-C1 level and Russian at B2 level
🔸 Core tools proficiency: Expertise in Figma, Photoshop, and Illustrator
🔸 AI Integration: Experience incorporating AI tools into your workflow (Midjourney, Stable Diffusion, Unbounce, etc.)
🔸 Motion and 3D graphics (bonus): Knowledge of After Effects and/or Blender is a plus
🔸 Attention to Detail & User-Centricity: Meticulous attention to detail with deep product immersion and focus on user experience research (analyzing click maps, scroll behavior, interactions, etc.)
🔸 Layout and design skills: Ability to design layouts for books, magazines, and e-books, plus experience developing design systems, illustrations, and presentation materials
🔸 Problem-solving: Creative and effective approach to solving design challenges
🔸 Industry knowledge: Understanding of current design trends, methods, and technologies with enthusiasm for emerging developments
🔸 Receptiveness to feedback: Professional approach to critique and collaboration
🔸 Growth mindset: Eagerness to learn and develop professionally

Responsibilities:
🔸 Design Development: Create design concepts, layouts, and components for company websites and products while following brand guidelines
🔸 UI Maintenance: Support and enhance the usability of existing design components
🔸 Structure and Hierarchy: Develop visual structure, hierarchy, and rhythm to effectively guide user attention
🔸 Prototyping: Prepare clickable prototypes for user interface interactions
🔸 Content Design: Design and format content for websites, social media, and other channels; create illustrations, infographics, flowcharts, etc.
🔸 Marketing & Promotional Materials: Develop design concepts for merchandise, promotional campaigns, presentations, handouts, and other marketing collateral
🔸 Digital and Print Layout: Design e-books, checklists, and brochures
🔸 Design System Management: Support and expand the design system
🔸 Pre-press preparation: Basic skills in preparing pre-press files for printing

CV to @recruiter_maddevs

#вакансия #vacancy #python #senior #lookfor #remote #pd

Vacancy: Senior Python Developer
Company: Mad Devs
Salary: 5000-6000$ gross
We are looking for a Python developer for a b2b project that is an actively developing product

Responsibilities:
- Developing microservices using Python, FastAPI, Gunicorn, and other relevant technologies
- Deploying services on the Google Cloud platform, utilizing the Google Cloud CLI
- Collaborating with cross-functional teams to understand business requirements and translate them into technical solutions
- Writing clean, maintainable, and efficient code that follows best practices
- Organizing Cl/CD processes to enable smooth and automated deployments
- Collaborating with DevOps and infrastructure teams to optimize the deployment pipeline
- Conducting code reviews and providing constructive feedback to team members.

Our expectations:
- Proficiency in Python programming language (7+ years)
- Language Proficiency: English at B2-C1 level, Russian at B2 level.
- Experience in designing and developing APIs, preferably using FastAPl
- Strong knowledge of microservice architecture and design patterns
- Proficiency in working with databases such as Postgres, Redis, and MySQL
- Experience with containerization using Docker and Docker Compose
- Familiarity with Google Cloud Platform. including deployment and management of services
- Knowledge of Lex-Yacc Parser and Linux will be advantageous.
- Familiarity with Google Kubernetes Engine (GKE) is a plus
- Strong understanding of CI/CD processes and tools
- Excellent problem-solving and debugging skills.
- Strong communication and collaboration skills to work effectively in a team environment
- Location: any, except Russia and Belarus

Contact: @recruiter_maddevs

#vacancy #remote #fulltime #lookfor #sales #strategy #bizdev

Vacancy: Business development (BizDev)
Work format: Remote
Company: Mad Devs
Salary: 2000$ gross

This isn’t just another sales role — it’s a call for a partner who can turn complex tech into stories people want to hear (and buy).
Experimentation Product is a Cloudflare Workers–based server-side experimentation and personalization platform. It lets teams run A/B tests, split experiments, and SEO-safe personalization without slowing pages or risking security.
Our niche is clear, the value is real — but setup takes thought.
That’s why we’re seeking a Growth Lead who can shape the story, drive adoption, and build scalable growth from the ground up.

Requirements:
- 2+ years in B2B or startups, with proven success driving user acquisition and activation.
- Comfortable with direct outreach, cold messaging, and public speaking (podcasts, demos, communities).
- Strong ability to craft narratives that convert complex tech into business value.
- Independent, structured, and proactive. No micromanagement - just ownership.
- Basic understanding of web infrastructure (bonus if familiar with Cloudflare).
- Experienced in using LLMs and other tools to scale workflows.
- Fluent in English (C1) and Russian (B2+).

Responsibility:
- Drive growth through targeted outreach, partnerships, and community engagement.
- Translate complex technical concepts into clear, compelling narratives across content formats.
- Build awareness through podcasts, social media, and simple, high-converting landing pages.
- Re-engage inactive users and run data-driven campaigns to boost activation and adoption.
- Collaborate with product and engineering to align messaging and showcase business value.
- Continuously test, measure, and refine scalable growth processes using AI-powered tools.

Your ideas, your strategy, your impact. This is not a support role — it’s a leadership opportunity.

Contact us: @recruiter_maddevs

#vacancy #remote #fulltime #lookfor #product #sales #strategy

Vacancy: Product Growth Manager
Work format: Remote
Company: Mad Devs
Salary: 2000$ gross

This isn’t just another sales role — it’s a call for a partner who can turn complex tech into stories people want to hear (and buy).
Experimentation Product is a Cloudflare Workers–based server-side experimentation and personalization platform. It lets teams run A/B tests, split experiments, and SEO-safe personalization without slowing pages or risking security.
Our niche is clear, the value is real — but setup takes thought.
That’s why we’re seeking a Growth Lead who can shape the story, drive adoption, and build scalable growth from the ground up.

Requirements:
- 2+ years in B2B or startups, with proven success driving user acquisition and activation.
- Comfortable with direct outreach, cold messaging, and public speaking (podcasts, demos, communities).
- Strong ability to craft narratives that convert complex tech into business value.
- Independent, structured, and proactive. No micromanagement - just ownership.
- Basic understanding of web infrastructure (bonus if familiar with Cloudflare).
- Experienced in using LLMs and other tools to scale workflows.
- Fluent in English (C1) and Russian (B2+).

Responsibility:
- Drive growth through targeted outreach, partnerships, and community engagement.
- Translate complex technical concepts into clear, compelling narratives across content formats.
- Build awareness through podcasts, social media, and simple, high-converting landing pages.
- Re-engage inactive users and run data-driven campaigns to boost activation and adoption.
- Collaborate with product and engineering to align messaging and showcase business value.
- Continuously test, measure, and refine scalable growth processes using AI-powered tools.

Your ideas, your strategy, your impact. This is not a support role — it’s a leadership opportunity.

Contact us: @recruiter_maddevs