Foundrr.lab

About the project

We are developing and maintaining a large ERP system for a jewelry manufacturing and wholesale company.
The project is a long-term, continuously evolving legacy system with active feature development, refactoring, and integrations.

The product covers manufacturing processes, inventory, logistics, finance, and wholesale operations.
Work is fully remote, tasks are clearly defined, and communication is structured through the team — no direct contact with end clients.

Requirements

• 5+ years of experience with PHP
• Strong experience with native PHP (procedural → OOP → DI)
• Hands-on experience with:
  • Yii2
  • Laravel / Lumen
  • Workerman
• Solid understanding of:
  • OOP and design principles
  • WebSockets
  • REST and SOAP APIs
  • GitFlow
  • CI/CD pipelines
  • Linux environments
• Databases:
  • PostgreSQL
  • MySQL
  • Redis
• Frontend basics:
  • Native JavaScript
  • jQuery
  • HTML / CSS
• English level: B2 or higher (written and verbal communication)

Responsibilities

• Develop and maintain backend functionality for the ERP system
• Work with legacy code: improve, refactor, and extend existing modules
• Design and implement new features and integrations
• Develop and maintain APIs (REST / SOAP)
• Work with real-time features using WebSockets
• Optimize performance, stability, and database queries
• Fix bugs and ensure system reliability
• Collaborate with backend, frontend, and product team members
• Take ownership of tasks from analysis to delivery

Soft skills

• Strong self-management and ability to work independently
• Clear and structured communication
• Proactive mindset: identifies issues and proposes solutions
• High level of responsibility and ownership for results
• Ability to work effectively in distributed teams
• Strong time management and prioritization skills

Nice to have

• Experience working in Scrum teams (5+ people)
• Experience building complex ERP or CRM systems
• Knowledge of Python
• Experience with high-load or business-critical systems

We offer

• Full-time, fully remote work
• Long-term, stable project
• Clear task-based workflow
• No micromanagement
• Professional and experienced team
• Opportunity to work on a complex, real-world ERP system

About the Product

We are building an iOS application with real-time on-device audio processing powered by CoreML.

All ML logic runs fully on-device.
No raw audio is stored or sent to the backend.

We are looking for an engineer who has already built real-time audio + ML features in production and can start delivering immediately — no onboarding, no learning curve.

You MUST Have

• Proven commercial experience with CoreML in production
• Experience building real-time audio pipelines
• Hands-on work with AVAudioEngine
• Experience integrating audio streams into ML models
• Experience running audio + ML in background mode
• Performance optimization on real devices

If you do not have production experience with CoreML and real-time audio — this role is not a fit.

Responsibilities

• Build and maintain the pipeline:
  Microphone → Audio processing → Feature extraction → CoreML inference → UI
• Optimize latency and CPU usage
• Ensure stability across devices
• Handle background audio execution
• Maintain strict privacy (no raw audio storage)

Nice to Have (but still relevant)

• Experience with Accelerate / vDSP
• Experience with SoundAnalysis
• Experience with acoustic event detection (laughter, shouting, silence, etc.)

One-Line Summary of Who We’re Looking For

A production-ready Senior iOS engineer who has already shipped real-time CoreML audio features and can work independently from day one.

Format: Remote / Full-time / Long-term
Location: Worldwide
Model: Fixed price per stage / project (no hourly, no salary)

📌 Responsibilities

• Build low-latency systems (<100ms) for crypto announcement monitoring
• Develop high-speed parsers for social media and exchanges
• Bypass Cloudflare / anti-bot protections at protocol level (not browser automation)
• Work with WebSocket, real-time streaming, async pipelines
• Design proxy infrastructure, anti-ban, rate-limit bypass systems
• Participate in development of trading bots and fintech tools

✅ Requirements

• Strong experience with Go (goroutines, channels, net/http, fasthttp)
• Proven experience building low-latency systems
• Real experience bypassing Cloudflare without Selenium/Playwright
• Deep understanding of concurrent / event-driven systems
• Experience with WebSocket / streaming APIs
• Knowledge of TCP/IP, TLS, handshakes, fingerprinting
• Background in crypto / fintech / scraping

⭐ Nice to Have

• Trading bots for announcements / Twitter
• Real cases with measured latency results
• Experience with Binance / OKX / Bybit APIs
• Reverse engineering / network debugging

📂 What We Expect

• CV
• Short description of relevant projects
• Demo / video / GitHub (if available)
• Answers to technical questions

💼 Work Model

• Long-term partnership
• Multiple parallel projects
• High autonomy
• Result-oriented, not hour-based

Format: Remote / Full-time / Long-term
Location: Worldwide
Model: Fixed price per stage / project (no hourly, no salary)

📌 Responsibilities

• Build low-latency systems (<100ms) for crypto announcement monitoring
• Develop high-speed parsers for social media and exchanges
• Bypass Cloudflare / anti-bot protections at protocol level (not browser automation)
• Work with WebSocket, real-time streaming, async pipelines
• Design proxy infrastructure, anti-ban, rate-limit bypass systems
• Participate in development of trading bots and fintech tools

✅ Requirements

• Strong experience with Node.js (async/await, streams, clustering, workers)
• Proven experience building low-latency systems
• Real experience bypassing Cloudflare without Selenium/Playwright
• Deep understanding of event-driven architecture
• Experience with WebSocket / streaming APIs
• Knowledge of TCP/IP, TLS, handshakes, fingerprinting
• Background in crypto / fintech / scraping

⭐ Nice to Have

• Trading bots for announcements / Twitter
• Real cases with measured latency results
• Experience with Binance / OKX / Bybit APIs
• Reverse engineering / network debugging

📂 What We Expect

• CV
• Short description of relevant projects
• Demo / video / GitHub (if available)
• Answers to technical questions

💼 Work Model

• Long-term partnership
• Multiple parallel projects
• High autonomy

Format: Remote / Full-time / Long-term

Location: Worldwide

Model: Fixed price per stage / project (no hourly, no salary)

📌 Responsibilities

• Build low-latency systems (<100ms) for crypto announcement monitoring
• Develop high-speed parsers for social media and exchanges
• Bypass Cloudflare / anti-bot protections at protocol level (not browser automation)
• Work with WebSocket, real-time streaming, async pipelines
• Design proxy infrastructure, anti-ban, rate-limit bypass systems
• Participate in development of trading bots and fintech tools
   

✅ Requirements

• Strong experience with Python (asyncio, aiohttp, FastAPI, multiprocessing)
• Proven experience building low-latency systems
• Real experience bypassing Cloudflare without Selenium/Playwright
• Deep understanding of async / event-driven architecture
• Experience with WebSocket / streaming APIs
• Knowledge of TCP/IP, TLS, handshakes, fingerprinting
• Background in crypto / fintech / scraping

⭐ Nice to Have

• Trading bots for announcements / Twitter
• Real cases with measured latency results
• Experience with Binance / OKX / Bybit APIs
• Reverse engineering / network debugging

📂 What We Expect

• CV
• Short description of relevant projects
• Demo / video / GitHub (if available)
• Answers to technical questions

💼 Work Model

• Long-term partnership
• Multiple parallel projects
• High autonomy
• Result-oriented, not hour-based

About the Project

We are building a high-load digital platform with a strong focus on real-time operations, ticketing, and scalable backend services.

The system must reliably handle traffic spikes, concurrent users, and mission-critical workflows (ticket sales, check-in, live events).

We are looking for an experienced DevOps / Infrastructure Engineer to help us audit, design, and build a robust AWS-based infrastructure.

The engagement will include an initial assessment phase followed by full implementation and optimization.

This is a long-term project with real production impact, high responsibility, and strong technical challenges.

Responsibilities

• Audit and assess existing infrastructure
• Design scalable AWS architecture
• Configure S3 for asset and user-generated content storage
• Deploy and manage backend services using EC2 / ECS (Fargate)
• Set up load balancers, DNS, and caching layers
• Build real-time infrastructure (WebSockets, Redis pub/sub)
• Design and implement CI/CD pipelines
• Ensure safe, tested, and automated deployments
• Set up monitoring and alerting (CloudWatch, Sentry, etc.)
• Optimize infrastructure for high concurrency and traffic spikes
• Plan and execute load testing
• Improve system reliability, performance, and fault tolerance
• Maintain security and best DevOps practices

Requirements

• Strong hands-on experience with AWS
• Experience with EC2, ECS (Fargate), S3, ALB, Route53
• Experience designing scalable backend infrastructure
• Experience with Docker and containerized deployments
• Strong understanding of networking and load balancing
• Experience with Redis (caching / pub-sub / coordination)
• Experience building CI/CD pipelines (GitHub Actions, GitLab CI, etc.)
• Experience with monitoring and logging systems
• Knowledge of high-availability and fault-tolerant architectures
• Ability to work with high-load systems in production
• Experience with security best practices on AWS

Nice to Have

• Experience with Kubernetes (EKS or self-managed)
• Experience with Terraform / IaC
• Experience with load testing tools (k6, Locust, JMeter)
• Experience in ticketing / event / booking systems
• Experience working with WebSocket-based systems
• Knowledge of CDN optimization (CloudFront, similar)
• Experience in cost optimization on AWS

Experience Level

• 3+ years in DevOps / Infrastructure Engineering
• Proven experience with production AWS systems
• Experience handling high-traffic platforms
• Portfolio / case studies of infrastructure projects is a plus

Engagement Format

• Phase 1: Infrastructure audit and architecture design
• Phase 2: Implementation and optimization
• Possible long-term support and scaling

About the Project

We are building internal AI-powered systems that automate business processes, data analysis, and decision-making.

Our focus is on integrating Large Language Models (LLMs) into real production workflows: APIs, automation pipelines, and analytics platforms.

The project involves building scalable AI services, RAG systems, and workflow automation using modern Python stacks.

This is a long-term project with real business impact, stable workload, and strong technical challenges.

Responsibilities

• Build AI-driven APIs using FastAPI and Flask
• Design and implement LLM pipelines and agents
• Integrate OpenAI API and optimize usage costs
• Develop RAG systems using vector databases
• Automate workflows with n8n
• Build ETL / data processing pipelines
• Ensure data quality and output reliability
• Maintain and optimize PostgreSQL databases
• Deploy and scale microservices
• Improve system performance and stability

Requirements

• Strong Python backend experience
• Experience building REST APIs (FastAPI / Flask)
• Experience with LLM integration and pipelines
• Deep understanding of prompt engineering
• Experience with OpenAI API / Assistants / Function Calling
• Strong SQL skills (PostgreSQL)
• Experience with vector databases (pgvector / embeddings)
• Experience building RAG systems
• Experience with workflow automation (n8n)
• Understanding of microservice architecture
• Experience with ETL / data pipelines

Nice to Have

• Experience with Docker / containerization
• Git / version control proficiency
• Experience with Redis caching
• Basic frontend knowledge (Streamlit / React)
• Experience deploying ML/AI services
• Cloud experience (AWS / GCP / Vercel / similar)

Experience Level

• 3+ years in Backend / Data / AI Engineering
• Proven experience with production LLM systems
• GitHub / portfolio with AI projects
• Experience working with scalable systems

About the project

We are building and scaling a web platform focused on organic traffic and long-term growth.

Currently, we have a small SPA that needs to be transformed into a full-featured SSR solution using Nuxt.js to improve SEO performance and search engine indexing.

The main focus is technical SEO, SSR architecture, and performance optimization.

This is a long-term project with real business goals and stable workload.

Responsibilities

• Migrate SPA to SSR (Nuxt.js)
• Develop frontend using Nuxt / Vue 3
• Develop backend using Nest.js
• Work with MySQL and Prisma
• Implement SEO team requirements
• Optimize performance and indexing
• Maintain and scale the product

Requirements

• 3+ years of commercial experience
• 1+ year with Nuxt.js
• Strong JavaScript / TypeScript skills
• Experience with:
  • Nuxt.js
  • Vue 3 (Composition API)
  • Pinia
  • Nest.js
  • MySQL
  • Prisma
• Experience with SSR
• Understanding of Technical SEO
• Experience with database migrations

About the project

We are building and scaling a web platform focused on organic traffic and long-term growth.

Currently, we have a small SPA that needs to be transformed into a full-featured SSR solution using Nuxt.js to improve SEO performance and search engine indexing.

The main focus is technical SEO, SSR architecture, and performance optimization.

This is a long-term project with real business goals and stable workload.

Responsibilities

• Migrate SPA to SSR (Nuxt.js)
• Develop frontend using Nuxt / Vue 3
• Develop backend using Nest.js
• Work with MySQL and Prisma
• Implement SEO team requirements
• Optimize performance and indexing
• Maintain and scale the product

Requirements

• 3+ years of commercial experience
• 1+ year with Nuxt.js
• Strong JavaScript / TypeScript skills
• Experience with:
  • Nuxt.js
  • Vue 3 (Composition API)
  • Pinia
  • Nest.js
  • MySQL
  • Prisma
• Experience with SSR
• Understanding of Technical SEO
• Experience with database migrations

About the Role

We are looking for an experienced Ruby engineer to join our team as a Tier 3 technical escalation specialist in a payments infrastructure environment.

This is not a feature-development role.
You will focus on investigating complex production issues, debugging integrations, and providing clear technical explanations to internal teams and customers.

This role is ideal for engineers who enjoy deep problem-solving and working with real-world SaaS systems.

Responsibilities

• Investigate and troubleshoot complex production issues in Ruby-based systems
• Analyze and clearly distinguish between:
  • Product bugs
  • Expected system behavior
  • Customer configuration or integration issues
• Debug API integrations and payment gateway workflows
• Reproduce issues using Postman, logs, and monitoring tools
• Act as Tier 3 technical escalation for support teams
• Provide clear, structured written explanations
• Document cases and contribute to internal knowledge base
• Collaborate with Core Engineering on fixes and improvements
• Participate in technical reviews and RFC discussions
• Work primarily through written communication
• Use AI tools to improve clarity and efficiency

Requirements

• Strong commercial experience with Ruby
• Solid experience debugging production systems
• Deep understanding of REST APIs
• Experience with payment gateway integrations
• Advanced Postman skills
• Fullstack troubleshooting skills (basic to medium across multiple languages)
• Ability to emulate customer-side implementations (iFrame, HTML, JavaScript)
• Experience tracing interactions across distributed services
• Strong analytical mindset
• Comfortable working in ambiguous environments
• Excellent written English
• Comfortable with text-based communication
• Willingness to use AI tools in daily work

Nice to Have

• Experience in fintech or payments
• SaaS platform background
• Experience in support engineering or escalation roles
• Knowledge of monitoring and observability tools

Why This Role Is Valuable

You will gain deep insight into how real SaaS and payment systems work in production, including customer integrations, edge cases, and system behavior at scale.

This experience is especially valuable for engineers interested in building their own products in the future.

About the project

We are building and scaling a web platform focused on organic traffic and long-term growth.

Currently, we have a small SPA that needs to be transformed into a full-featured SSR solution using Nuxt.js to improve SEO performance and search engine indexing.

The main focus is technical SEO, SSR architecture, and performance optimization.

This is a long-term project with real business goals and stable workload.

Responsibilities

• Migrate SPA to SSR (Nuxt.js)
• Develop frontend using Nuxt / Vue 3
• Develop backend using Nest.js
• Work with MySQL and Prisma
• Implement SEO team requirements
• Optimize performance and indexing
• Maintain and scale the product

Requirements

• 3+ years of commercial experience
• 1+ year with Nuxt.js
• Strong JavaScript / TypeScript skills
• Experience with:
  • Nuxt.js
  • Vue 3 (Composition API)
  • Pinia
  • Nest.js
  • MySQL
  • Prisma
• Experience with SSR
• Understanding of Technical SEO
• Experience with database migrations

Language

• English: B1+

About the Role

We are looking for an experienced Ruby engineer to join our team as a Tier 3 technical escalation specialist in a payments infrastructure environment.

This is not a feature-development role.
You will focus on investigating complex production issues, debugging integrations, and providing clear technical explanations to internal teams and customers.

This role is ideal for engineers who enjoy deep problem-solving and working with real-world SaaS systems.

Responsibilities

• Investigate and troubleshoot complex production issues in Ruby-based systems
• Analyze and clearly distinguish between:
  • Product bugs
  • Expected system behavior
  • Customer configuration or integration issues
• Debug API integrations and payment gateway workflows
• Reproduce issues using Postman, logs, and monitoring tools
• Act as Tier 3 technical escalation for support teams
• Provide clear, structured written explanations
• Document cases and contribute to internal knowledge base
• Collaborate with Core Engineering on fixes and improvements
• Participate in technical reviews and RFC discussions
• Work primarily through written communication
• Use AI tools to improve clarity and efficiency

Requirements

• Strong commercial experience with Ruby
• Solid experience debugging production systems
• Deep understanding of REST APIs
• Experience with payment gateway integrations
• Advanced Postman skills
• Fullstack troubleshooting skills (basic to medium across multiple languages)
• Ability to emulate customer-side implementations (iFrame, HTML, JavaScript)
• Experience tracing interactions across distributed services
• Strong analytical mindset
• Comfortable working in ambiguous environments
• Excellent written English
• Comfortable with text-based communication
• Willingness to use AI tools in daily work

Nice to Have

• Experience in fintech or payments
• SaaS platform background
• Experience in support engineering or escalation roles
• Knowledge of monitoring and observability tools

Why This Role Is Valuable

You will gain deep insight into how real SaaS and payment systems work in production, including customer integrations, edge cases, and system behavior at scale.

This experience is especially valuable for engineers interested in building their own products in the future.

Про продукт

Розробляємо iOS-додаток із локальною обробкою аудіо в реальному часі.
Уся логіка працює на пристрої — без відправки сирого аудіо на сервер.

Потрібен інженер, який розуміє, як працює звук, сигнали та ML on-device, і вміє будувати AI-логіку прямо у фронтовому застосунку.

Що потрібно робити

• Захоплення аудіо через AVAudioEngine
• Real-time обробка сигналу (pitch, amplitude, FFT)
• Робота з Accelerate (vDSP)
• Інтеграція SoundAnalysis / Core ML
• Детекція акустичних подій (laughter, shouting, silence)
• Побудова real-time visualizations
• Зберігання лише числових метрик (SwiftData / Core Data)
• Оптимізація продуктивності на пристрої

Вимоги

• 4+ років комерційного iOS (Swift)
• Досвід зі SwiftUI
• Практичний досвід роботи з AVAudioEngine
• Досвід real-time data processing
• Досвід роботи з Core ML або SoundAnalysis
• Розуміння on-device ML

Принципово важливо

• ❌ Без Speech-to-Text
• ❌ Без збереження сирого аудіо
• ✅ Вся обробка локально
• ✅ Зберігаються лише числові метрики