
Talgat Saribayev
Verified Expert in Engineering
Software Developer
Astana, Kazakhstan
Toptal member since May 18, 2020
Talgat is a highly skilled software engineer with deep expertise in system design and cloud computing. Formerly a senior software engineer at Google, he has a proven track record of modernizing web applications and optimizing system performance. His experience includes leading successful projects in IoT and application migrations, demonstrating his ability to drive innovation and enhance technological infrastructure.
Portfolio
Experience
- TypeScript - 9 years
- React - 8 years
- JavaScript - 7 years
- PostgreSQL - 7 years
- Node.js - 5 years
- Go - 5 years
- Svelte - 2 years
- Security - 2 years
Availability
Preferred Environment
Kubernetes, Docker, SQL, Svelte, Node.js, GraphQL, TypeScript, Go, React, Amazon Web Services (AWS)
The most amazing...
...app I've developed as the leader of a 4-person team saw performance increase by 300%. It received many notes of gratitude from the company.
Work Experience
Lead Software Engineer | Software Architect
Self-employed
- Directed a cross-functional team in developing a government procurement platform, streamlining procurement workflows and improving process transparency, resulting in a 30% increase in efficiency.
- Led a team of ten engineers in designing and implementing a resource management system for a major construction company, reducing resource allocation time by 40% and enhancing operational productivity.
- Managed a team of five developers in creating a specialized banking application for holiday-related services, delivering an engaging user experience that achieved a 95% satisfaction rate in early testing.
Senior Software Engineer
- Maintained and modernized legacy codebase to accommodate thousands of daily users.
- Spearheaded migrating the web application from Ruby on Rails version 3 to the latest version 7, concurrently updating the MySQL database. This enhanced scalability and achieved a 40% improvement in page load times.
- Orchestrated the migration of the CI/CD process from TeamCity to Jenkins, which resulted in a 30% reduction in deployment time and a 35% increase in the overall build success rate.
- Resolved several security vulnerabilities; for example, detected and prevented ransom data exfiltration in our app, fortifying its resilience and reducing potential security risks by 50%.
Full-stack Engineer
OneLayer
- Led the development of the front-end and web services, accounting for 60% of the application's functionality.
- Established robust communication layers between multiple services, including GraphQL, WebSockets, gRPC, and Kafka, resulting in a 33% reduction in latency.
- Designed an event-driven system that can work on the cloud and private solutions, reducing response time by 40%.
- Collaborated effectively with a diverse, cross-functional team through streamlined communication and coordinated efforts.
Full-stack Developer (via Toptal)
Pfizer - PGS Operations Insights
- Integrated three projects into one successfully, necessitating substantial enhancements in database architecture, record synchronization, logic flow, and API functionality, resulting in a 300% increase in overall system efficiency.
- Implemented a usage tracking system to provide feedback for several departments: marketing, R&D, complaints, etc.
- Revitalized the existing codebase, enhancing CI/CD pipelines and streamlining the overall development process, resulting in a 40% reduction in deployment time and a 30% reduction in post-deployment errors.
Full-stack Developer
Pfizer
- Collaborated with Pfizer on a COVID-19 project. Created an automated CI/CD pipeline. This allowed us to move to a continuous delivery model, shipping to production many times per week.
- Fixed important issues with calculations of research materials that were causing trouble to several departments.
- Updated all dependencies and moved DevOps infrastructure to a new stack, which resolved deployment and security issues.
Senior Software Engineer
GitHub
- Orchestrated the implementation of security and privacy protocols, aligning with GDPR standards.
- Demonstrated initiative by independently resolving a recurrent email notification issue, resulting in a 20% reduction in deployment process time.
- Ensured the integration of microservices through integration and functional testing, reducing system integration issues by 40% and bolstering overall system stability.
Senior UI Developer
Cisco
- Entrusted with enhancing the application's security profile. Conducted vulnerability assessments and implemented supplementary layers of security controls.
- Engineered and fortified 40 new functionalities successfully while addressing over 100 bugs. This effort led to an 11% improvement in performance.
- Strengthened the project's robustness by adding and refining over 100 test cases, effectively covering 20% of the overall functionality.
- Collaborated with the entire cross-functional team actively to ensure the seamless and precise execution of tasks.
- Engaged closely with a diverse, globally dispersed cross-functional team spanning 30 countries to guarantee the smooth and accurate completion of tasks.
Front-end Developer
DecisionMapper
- Assumed the responsibility of delivering security reports and addressing vulnerabilities every two sprints (four weeks).
- Facilitated seamless collaboration among a diverse team of 10 departments encompassing various roles, including accounting, finance analysts, R&D, and managers.
- Provided mentorship and guidance to a junior developer.
Software Engineer
Deluxe Entertainment Services
- Created 17 functionalities on the UI (authentication, modal, static page generator), that represented 40% of the app's functionality in total.
- Introduced two new development tools (Prettier and UglifyJS2), which increased the speed of development and build of the project by 100%.
- Developed cross-browser and cross-environment pages using CSS, HTML, and JavaScript.
Software Engineer
EPAM Systems
- Rewrote two massive applications with the new UI, which gave a jump in performance by 300%. Received many notes of thanks from project managers and the company shareholders.
- Brought code review and test coverage into projects.
- Managed and guided two junior front-end developers.
- Cast the technologies and established the font-end architecture.
Experience
Finance Related App
My responsibilities:
-Provided security reports every two sprints (four weeks) and successfully fixed security vulnerabilities that increased the security level of the project.
-Leveraged one-way data binding through the scope in the applications built on React.js.
-Developed a financial web application using React and Node.js for MVW/MVC.
-Created a cloud-based solution for the application using Node.js, PDF.js, MongoDB, MS SQL Server, and integrated it into a proprietary framework.
EPM-TIME
I created the view from scratch, including styles (not design) using HTML, CSS, and logic. I contributed to the behavior of the app, the selection of tools, and ideas to increase performance. I shared tasks between the front-end team and guided junior developers.
Within a short period, our app performance increased by 300%. It proved to be bug-free and was loaded with new features compared to the previous one. The app is currently in production. EPAM shareholders were very impressed by the progress made. I received several thankful notes.
EPM-CTC Assistant (July 2016 - January 2017)
I was part of the front-end developers and implemented new features, adjusted existing parts, and fixing bugs. App performance was enormously boosted. The application loaded and rendered pages much more quickly with no necessary Ajax calls. The easy-to-navigate interface was bug-free. Users were very satisfied with a new look and performance.
Cisco SecureX Orchestrator
https://www.cisco.com/site/us/en/products/security/xdr/index.htmlPGS Operations Insights
Onelayer SaaS Solution
https://onelayer.com/Efficient Resource Management System for Construction Company
• Served as the architecture and engineering lead for a major local construction and development company, streamlining business processes across various construction stages.
• Designed and implemented a robust system to manage critical functions, including permission assignment, material provisioning, and the purchasing or rental of equipment.
• Led the development team leveraging a modern tech stack: Node.js (Express.js, NestJS), MongoDB, React, Docker, and Airflow.
The system significantly enhanced operational efficiency and resource utilization, achieving key organizational objectives. I'm proud of the impactful results and would be delighted to showcase our work.
Education
Bachelor's Degree in Computer Science
Kazakh University of Technology and Business - Nur-Sultan, Kazakhstan
Coursework in Robotics
Nazarbayev University - Nur-Sultan, Kazakhstan
Certifications
AWS Certified Solutions Architect – Professional
Amazon Web Services
AWS Certified DevOps Engineer – Professional
Amazon Web Services
Skills
Libraries/APIs
React, Node.js, Context API, REST APIs, Three.js, WebGL, AWS Amplify, Puppeteer, Playwright, Google Maps API, Vue, PostgREST, API Development
Tools
Canvas, GitHub, Amazon Simple Notification Service (SNS), Amazon Simple Queue Service (SQS), Amazon ElastiCache, GCC, Terraform, InVision, Jira, Git, SOLIDWORKS, Puppet, AWS Fargate, AWS CloudFormation, AWS CodeBuild, AWS IAM, Apache Airflow
Languages
JavaScript, CSS, HTML, GraphQL, Go, TypeScript, Ruby, HTML5, Python, ECMAScript (ES6), SQL, Java, Bash, C, C++
Frameworks
Redux, Koa, Jest, Svelte, Next.js, Tailwind CSS, Material UI, Ruby on Rails (RoR), Cypress, React Native, Selenium, Angular, gRPC, NestJS
Paradigms
Design Patterns, Automation, Test-driven Development (TDD), UX Design, Web Performance Optimization (WPO), Search Engine Optimization (SEO), Continuous Integration (CI), Automated Testing, DevOps, Good Clinical Practice (GCP), CQRS, Event Sourcing, REST, Microservices Architecture, Event-driven Architecture
Platforms
Amazon Web Services (AWS), AWS Lambda, Google Cloud Platform (GCP), Apache Kafka, Docker, Kubernetes, Firebase, Blockchain, Mobile, Heroku, VWO, Mapbox, Linux, AWS IoT
Storage
PostgreSQL, Hasura, MySQL, Databases, Amazon Aurora, MongoDB, CouchDB, ArangoDB, Redis, InfluxDB, Neo4j
Other
SVG, Apollo, Full-stack, Performance, Leadership, Architecture, Industrial Internet of Things (IIoT), Back-end, Supabase, Web Scraping, Data Scraping, Security Design, Software Architecture, APIs, Web Development, Lambda Functions, CI/CD Pipelines, Full-stack Development, User Experience (UX), User Interface (UI), Algorithms, Analytics, A/B Testing, Web Usability, Technical Leadership, Mobile First, Documentation, Writing & Editing, Team Leadership, Code Review, Software Development, Application State Management, Caching, Core Web Vitals, Front-end Architecture, Web Scalability, Lazy Loading, SSG, Static Site Generators, Server-side Rendering (SSR), Scalability, Zustand, Google Cloud Functions, System Architecture, RESTFul APIs, Gin Tonic, Identity & Access Management (IAM), Startups, SvelteKit, Internet of Things (IoT), Data Architecture, Crypto, CTO, Containerization, Web3, Advertising Technology (Adtech), Artificial Intelligence (AI), Data Engineering, Tables, Videos, Security, Privacy, Data Privacy, General Data Protection Regulation (GDPR), Web Security, Regulations, Robotics, Mechatronics, Signals, Image Recognition, Cloud Computing, System Design, System Architecture Design, AWS CodePipeline, Domain-driven Design (DDD), Reverse Engineering, Geolocation
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