Stanislav Krasnoyarov
Verified Expert in Engineering
JavaScript Developer
Lisbon, Portugal
Toptal member since December 30, 2014
Stanislav is a seasoned software expert with 25+ years in tech and 12 years leading his own development agency. He’s built and shipped SaaS products end-to-end, designed blockchain systems that scaled valuations from $5 million to $12 million, and crafted core tech for a startup later valued at $2 million. Fluent in business goals and founder needs, Stanislav leverages AI tools daily to cut costs and accelerate delivery across back end, front end, and infrastructure.
Portfolio
Experience
- JavaScript - 10 years
- Node.js - 10 years
- Python - 10 years
- CTO - 10 years
- Amazon Web Services (AWS) - 10 years
- Code Architecture - 10 years
- Domain-driven Design (DDD) - 7 years
- Large Language Models (LLMs) - 2 years
Preferred Environment
MacOS, Claude, Cursor AI, Python, Node.js, React
The most amazing...
...project I've worked on was reverse engineering Microsoft Outlook to bring unique features to the product that no competition had.
Work Experience
Founder
Redsteep
- Built and led a boutique software development company delivering 30+ projects across blockchain, AI, and fintech.
- Designed and developed the core technology for a bootstrap startup that reached a $2.1 million valuation.
- Increased a client’s pre-deal valuation from $5 million to $12 million by delivering a ZKP-based KYC feature.
- Designed a Faster-RCNN model for invoice recognition, improving automation and accuracy in financial workflows.
- Managed the whole lifecycle—business development, client relations, team hiring, project management, and technical oversight.
Team Lead
Katachi Media
- Implemented project management processes for the company's core product.
- Managed a team of developers to release a new major product update.
- Developed configuration management and deployment procedures.
iOS Developer/Back-end Developer
Kocomojo LLC (via Toptal)
- Implemented an iOS SDK which tracks user location and presents customizable mini-apps.
- Implemented part of the back-end for the SDK.
Back-end/System Developer
Turn Partners
- Ran a feasibility check and implemented core product features by patching the Linux and Android kernel.
- Refactored existing back-end code, improved code quality, and added unit tests.
- Reduced churn rate by improving service stability.
- Implemented automatic deployment procedures with Ansible.
- Implemented centralized logging and monitoring facilities.
Mobile Developer
Freelance
- Developed iOS apps for a variety of clients. Projects include a GPS tracker app, a client for a MOOC site (Coursera-like) with video lectures and simple quizzes, and a video communication app where users send each other short video clips.
Consultant
OpenWay Services
- Implemented and supported OpenWay WAY4-based solutions for commercial banks.
- Led an online payment solution integration project for a major Russian bank.
PM/Team Lead
Business Computer Center
- Implemented an application for commercial banks to interoperate with the Central Bank of Russia, currently deployed in 40+ banks.
- Designed and prototyped WebSphere Portal-based solutions.
System Architect
Quest Software
- Conducted competition analysis, created proof-of-concept builds, and designed architecture for a number of MS SharePoint-related products.
Developer and Team Lead
Aelita Software
- Developed an Outlook profile switching utility for the Exchange 5.5 to Exchange 2000/2003 migration software ("Exchange Migration Wizard").
- Reverse-engineered MS Outlook 2007 to implement unique features.
- Pioneered test-driven development and Agile practices.
Experience
AI Lead Generation Platform
• Built an autonomous leadgen agent that finds and validates hundreds of relevant leads in hours.
• Designed and implemented a data acquisition, enrichment, and scoring pipeline.
• Helped set up personalized outbound email flows via lead context injection.
• Pilot tests currently show early test sales.
TOOLS
Python, FastAPI, OpenAI API, PostgreSQL, AWS
Blockchain KYC Platform
ACCOMPLISHMENTS
• Designed and led the implementation of the Zero‑Knowledge Proof KYC system.
• Analyzed multiple Zero‑Knowledge Proof research whitepapers to select the optimal approach.
• Oversaw development of core logic, smart contracts, and infrastructure.
HopperHQ
ACCOMPLISHMENTS
• Built the MVP back end and automation layer for social media scheduling.
• Enabled early launch, user growth, and revenue traction.
• Improved platform stability.
Education
Specialist Degree in Software Development
ITMO University - Saint Petersburg, Russia
Certifications
Project Management Professional (PMP)
Project Management Institute (PMI)
Skills
Libraries/APIs
Node.js, REST APIs, Pandas, SQLAlchemy, OpenCV, React, OpenGL ES, Parse SDK, OpenAI API, Vue
Tools
Ansible, Android NDK, Xcode, Claude, GNU Debugger (GDB), Git, Sublime Text, Jira, IntelliJ IDEA, GCC, Subversion (SVN), GitHub, Terminal, Android Studio, VirtualBox, Celery
Languages
Python, JavaScript, C++, Objective-C, GraphQL, Elixir, Java, TypeScript, Go, CSS, C++11, PHP, C#, Haskell, SQL, Solidity
Frameworks
React Native, iOS SDK, Redux, Ruby on Rails (RoR), AngularJS, Android SDK, RestKit, .NET, Symfony, Symfony 4, Next.js
Paradigms
UX Design, Unit Testing, Web Architecture, Test-driven Development (TDD), Object-oriented Design (OOD), API Architecture, DevOps
Platforms
iOS, Amazon Web Services (AWS), Google Cloud Platform (GCP), Android, Docker, Java EE (Jakarta EE), MacOS, OS X, Windows, Linux, LAMP
Storage
PostgreSQL, MongoDB, MySQL, SQLite, Microsoft SQL Server
Other
Reverse Engineering, Full-stack, CTO, Large Language Models (LLMs), Code Architecture, Domain-driven Design (DDD), Artificial Intelligence (AI), Back-end, Supabase, Software Architecture, API Design, APIs, Full-stack Development, Startups, Data Structures, Algorithms, ElevenLabs Solutions, Retrieval-augmented Generation (RAG), Linux Kernel, Way4, TCP/IP, Cursor AI, Computer Science, Software, IT Project Management, FastAPI, Zero-knowledge Proofs, Android-x86, API Integration, OpenAI, Architecture, Technical Leadership, Cloud, Back-end Development, Minimum Viable Product (MVP), Web App Development
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