Talhat

Talgat Nesipbaiev Contacts:​
​
[відкрити контакти](див. вище в блоці «контактна інформація»)

Senior Node.js / NestJS Backend [відкрити контакти](див. вище в блоці «контактна інформація»)
tg: @talgatio
Engineer https://github.com/Talgatio
linkedIn

Summary: ​Soft skills:
​Strong problem-solving skills
Senior Node.js Backend Engineer with 9+ years of experience building scalable, ​Effective communication
high-load backend systems. Strong expertise in NestJS, TypeScript,
MySQL/PostgreSQL, Redis, and distributed microservice architectures. ​Collaboration & teamwork
​Adaptability & flexibility
Experienced in designing REST APIs, optimizing database queries, ​Critical thinking
implementing caching strategies, and integrating third-party services
​Attention to detail
(payment systems, KYC, external APIs). Focused on performance, reliability, and
clean architecture in production environments. ​Time management
​Accountability & ownership
Hands-on engineer with strong ownership and delivery mindset. ​Proactive mindset
​Ability to work under pressure
Core Competencies: ​Continuous learning &

●​ Node.js, NestJS, TypeScript​ self-improvement
​Mentorship & knowledge
●​ REST API design & third-party integrations​ sharing
●​ MySQL / PostgreSQL (query optimization, indexing)​

●​ Redis (cache, pub/sub, queues)​
Languages
●​ Distributed systems​
English - intermediate
●​ Apache Kafka (event-driven architecture)​

●​ Performance optimization (100+ RPS services)​

●​ Docker​

●​ Unit & Integration Testing (Jest)​

●​ Microservices architecture​

●​ Kubernetes-based deployments

Experience:

Velitech, Remote - Backend Software Engineer​
​
01.2022 - 03.2026 - Senior Back-end Engineer / Team lead ​
​
Developed scalable backend services using NestJS & TypeScript​
 ●​ Designed and maintained microservice architecture with event-driven
communication (Kafka, GRPC)​

●​ Implemented Redis caching and pub/sub mechanisms to reduce
database load and improve response time​

●​ Optimized SQL queries, indexing strategies, and data models for
performance and consistency​

●​ Migrated large-scale service from Elasticsearch to PostgreSQL,
improving maintainability and data integrity​

●​ Integrated third-party APIs including payment providers, KYC systems,
and webhook-based marketing tools​

●​ Ensured service reliability and observability in Kubernetes-based
infrastructure​

●​ Collaborated closely with frontend, QA, and DevOps teams​

Environment:​
NestJS, Node.js, PostgreSQL, Redis, Kafka, Docker, Kubernetes, AWS,
Prometheus, Sentry.

Aceex, On-site - Backend Software Engineer
09.2019 - 06.2021​
​
Developed and maintained a high-load AdTech project, building an
AdExchange platform based on the OpenRTB protocol.
Researched, debugged, and fixed critical issues, ensuring platform stability
and performance.
Integrated C++ modules into the project using N-API for enhanced
functionality.
Developed and supported cron jobs (PHP, Node.js) for automated workflows.
Built a Telegram bot to extend platform capabilities.
Integrated third-party fraud and malware scanners for security
enhancements.​

Tech stack: Node.js, MySQL, MongoDB, ClickHouse, Aerospike, Memcached,
Redis, CronJobs, Kafka.

Ivia inc., On-site – Full Stack JavaScript Engineer
10. 2018 – 09.2019​
​
Designed and developed a chat microservice using Node.js, Kafka,
Elasticsearch, and Socket.io to ensure real-time communication and
scalability.
Built a microservice for seamless integration with Google Maps API,
optimizing location-based services.
Engineered logistics software solutions, enhancing operational efficiency
and automation.
Developed and maintained a Cryptocurrency Exchange application,
focusing on performance optimization and bug fixing.​

Tech stack: Angular, Node.js (Koa2), gRPC, WebSockets, Redis, PostgreSQL,
Kafka, Event Source.
DarinX, On-site – Full Stack JavaScript Engineer
04. 2018 – 10.2018
Developed a multifunctional training platform to enhance interaction
between teachers and students.
Built a whiteboard using Fabric.js for real-time collaboration.
Implemented a text editor with Firepad and a code editor using Ace Editor.
Integrated Wolfram API for advanced computational capabilities.
Designed and developed a financial expense tracking application tailored
for the gambling industry to optimize financial management.​

CitrusDev, Remote – Backend (Node.js) Engineer
12. 2017 – 04.2018

Development of microservice architecture. Calculation of the direction of
traffic in the three-dimensional coordinate system and the transmission of
a signal about the switching of a traffic light, depending on the traffic
priority

Unilimes, On-site– Full Stack JavaScript Engineer
08. 2017 – 04.2018

Develop an application for working with 3D models. Implementation of the
main functional on the terms of reference. De-tasking and setting up the
instance on Amazon Web Services.

FlyElephant, On-site– Full Stack JavaScript Engineer
02. 2017 – 08.2017

Support and development of a platform for remote work for Data Science
specialists.

Development of a web worker for turn on/off remote servers and accessing
them via ssh. Creating a transaction, debiting

Education:

National University “Lviv Polytechnic”

Computer Science Bachelor
09.2008 – 05.2012