Talgat is available for hire
Hire TalgatTalgat Saribayev
Verified Expert in Engineering
Security Developer
Location
Astana, Kazakhstan
Toptal Member Since
May 18, 2020
Talgat has over ten years of experience in the software industry, with a strong background in React, Node.js, and Go. He has contributed to various projects and initiatives that involved web development, data analysis, cloud computing, and automation. Talgat's notable achievements include developing a responsive web interface for Pfizer's drug discovery platform, enhancing GitHub's code review and collaboration features, and optimizing Cisco's network management dashboard.
Portfolio
Google
Good Clinical Practice (GCP), JavaScript, Ruby, Linux, Puppet, Performance...
OneLayer
Cloud Computing, Apache Kafka, Go, React, GraphQL, gRPC, Kubernetes...
Pfizer - PGS Operations Insights
CSS, HTML, React, API Development, Docker, Kubernetes, PostgreSQL, JavaScript...
Experience
Availability
Full-time
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
Senior Software Engineer
2022 - 2024
- Maintained and modernized a legacy codebase to accommodate thousands of daily users.
- Spearheaded the migration of 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%.
Technologies: Good Clinical Practice (GCP), JavaScript, Ruby, Linux, Puppet, Performance, HTML5, Leadership, Architecture, Internet of Things (IoT), REST APIs, Data Architecture, Industrial Internet of Things (IIoT), Back-end, Python, Firebase, Ruby on Rails (RoR), Security Design, Software Architecture, Google Cloud Platform (GCP), GitHub, APIs, Web Development, Apache Kafka, Test-driven Development (TDD), CI/CD Pipelines, Automated Testing, Full-stack Development, Containerization, User Experience (UX), User Interface (UI), Algorithms, Material UI, Analytics, A/B Testing, Web Usability, Mapbox, UX Design, Documentation, Writing & Editing
Full-stack Engineer
2022 - 2023
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.
Technologies: Cloud Computing, Apache Kafka, Go, React, GraphQL, gRPC, Kubernetes, Amazon Web Services (AWS), Documentation, Writing & Editing
Full-stack Developer (via Toptal)
2022 - 2022
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.
Technologies: CSS, HTML, React, API Development, Docker, Kubernetes, PostgreSQL, JavaScript, Node.js, Full-stack, GraphQL, Performance, HTML5, Leadership, Architecture, REST APIs, Data Architecture, Back-end, Supabase, Hasura, Python, Firebase, Ruby, AWS Fargate, Security Design, Software Architecture, Next.js, Google Cloud Platform (GCP), GitHub, APIs, Mobile, Web Development, Amazon Simple Notification Service (Amazon SNS), Amazon Simple Queue Service (SQS), Lambda Functions, Amazon Aurora, Apache Kafka, Test-driven Development (TDD), CI/CD Pipelines, Automated Testing, Full-stack Development, Containerization, User Experience (UX), User Interface (UI), Algorithms, Material UI, Analytics, VWO, A/B Testing, Web Usability, Technical Leadership, UX Design, Mobile First, AWS Amplify, Documentation, Writing & Editing
Full-stack Developer
2021 - 2021
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.
Technologies: CSS, JavaScript, HTML, Node.js, React, Full-stack, GraphQL, Next.js, PostgREST, Docker, Kubernetes, PostgreSQL, Performance, HTML5, Leadership, Architecture, REST APIs, Data Architecture, Back-end, Supabase, Hasura, Python, Ruby on Rails (RoR), Ruby, AWS Fargate, Security Design, Software Architecture, Google Cloud Platform (GCP), GitHub, APIs, Mobile, Web Development, Amazon Simple Notification Service (Amazon SNS), Amazon Simple Queue Service (SQS), Lambda Functions, Amazon Aurora, Apache Kafka, Test-driven Development (TDD), Heroku, CI/CD Pipelines, Automated Testing, Full-stack Development, Containerization, User Experience (UX), User Interface (UI), Algorithms, Material UI, Analytics, VWO, A/B Testing, Web Usability, Technical Leadership, Mobile First, AWS Amplify, Documentation, Writing & Editing
Senior Software Engineer
2021 - 2021
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.
Technologies: Security, Privacy, Data Privacy, GDPR, Web Security, Regulations, SQL, PostgreSQL, CouchDB, Amazon Web Services (AWS), AWS Lambda, Performance, HTML5, Leadership, Architecture, REST APIs, Back-end, Python, Ruby on Rails (RoR), Ruby, AWS Fargate, Security Design, Next.js, Google Cloud Platform (GCP), GitHub, APIs, Web Development, Amazon Simple Notification Service (Amazon SNS), Amazon Simple Queue Service (SQS), Lambda Functions, Amazon Aurora, Apache Kafka, Test-driven Development (TDD), Heroku, CI/CD Pipelines, Automated Testing, Full-stack Development, Containerization, User Experience (UX), User Interface (UI), Algorithms, Material UI, Analytics, A/B Testing, Web Usability, Mapbox, Technical Leadership, AWS Amplify, Documentation, Writing & Editing
Senior UI Developer
2018 - 2021
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.
Technologies: Git, Jira, InVision, Kubernetes, Docker, Go, Node.js, Redux, React, JavaScript, HTML5, Architecture, REST APIs, Back-end, Security Design, GitHub, APIs, Web Development, Lambda Functions, Apache Kafka, Test-driven Development (TDD), CI/CD Pipelines, Containerization, User Experience (UX), User Interface (UI), Algorithms, Analytics, A/B Testing, Web Usability, Technical Leadership, Documentation, Writing & Editing
Front-end Developer
2018 - 2018
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.
Technologies: Tables, MongoDB, JavaScript, Node.js, Redux, React, HTML5, REST APIs, Ruby on Rails (RoR), GitHub, APIs, Web Development, CI/CD Pipelines, Containerization, User Experience (UX), User Interface (UI), Algorithms, Analytics, A/B Testing, Web Usability, Documentation, Writing & Editing
Software Engineer
2017 - 2018
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.
Technologies: Videos, Node.js, TypeScript, Redux, React, HTML5, REST APIs, Ruby on Rails (RoR), GitHub, APIs, Web Development, CI/CD Pipelines, User Experience (UX), User Interface (UI), Algorithms, Analytics, A/B Testing, Web Usability, Documentation, Writing & Editing
Software Engineer
2016 - 2017
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.
Technologies: HTML, CSS, Bash, Angular, Redux, React, HTML5, REST APIs, GitHub, APIs, Web Development, CI/CD Pipelines, User Experience (UX), User Interface (UI), Algorithms, Analytics, A/B Testing, Web Usability, Documentation, Writing & Editing
Experience
Finance Related App
This was a project for one of the Big 4 accounting firms and had a complicated business logic with a very limited time-frame. It is under NDA.
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.
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
The primary usage of EPM-TIME is to record hours spent on a task for a particular project. EPAM had an older version called PMC. My team implemented a new front end and back end for the app. Initially, I maintained the front-end side alone before being joined by two extra junior developers. I then played the lead front-end developer role on my team.
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.
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)
This app is responsible for tracking expenses, planning budgets, and providing data to accountants. The EPAM-CTC assistant is utilized by thousands of every day. The flexible and key financial options of the app make the assistant a very important internal tool.
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.
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.
Education
2013 - 2016
Bachelor's Degree in Computer Science
Kazakh University of Technology and Business - Nur-Sultan, Kazakhstan
2010 - 2013
Coursework in Robotics
Nazarbayev University - Nur-Sultan, Kazakhstan
Skills
Libraries/APIs
React, Node.js, Context API, REST APIs, Three.js, WebGL, AWS Amplify, Vue, PostgREST, API Development
Tools
Canvas, GitHub, Amazon Simple Notification Service (Amazon SNS), Amazon Simple Queue Service (SQS), GCC, InVision, Jira, Git, SOLIDWORKS, Puppet, AWS Fargate
Frameworks
Redux, Koa, Jest, Svelte, Next.js, Tailwind CSS, Material UI, Ruby on Rails (RoR), Cypress, React Native, Express.js, Angular, gRPC
Languages
JavaScript, CSS, HTML, GraphQL, Go, TypeScript, Ruby, HTML5, Python, SQL, Bash, C, C++
Paradigms
Design Patterns, Test-driven Development (TDD), UX Design, Automated Testing, Automation, Good Clinical Practice (GCP)
Platforms
AWS Lambda, Google Cloud Platform (GCP), Apache Kafka, Docker, Kubernetes, Amazon Web Services (AWS), Firebase, Blockchain, Mobile, Heroku, VWO, Mapbox, Linux
Storage
Hasura, PostgreSQL, MySQL, Databases, Amazon Aurora, MongoDB, CouchDB, ArangoDB, Redis
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, Internet of Things (IoT), Data Architecture, Crypto, CTO, Containerization, Tables, Videos, Security, Privacy, Data Privacy, GDPR, Web Security, Regulations, Robotics, Mechatronics, Signals, Image Recognition, Cloud Computing
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