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Daulet Bulegenov

@dauletbulegenov

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Senior Java developer and team lead delivering scalable backend and full-stack systems across FinTech and logistics.

Kazakhstan

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What I'm looking for

I’m looking for a role where I can lead Java/Kotlin teams, own architecture and performance, and build full-stack features with Angular—collaborating with US/EU stakeholders in high-throughput FinTech or logistics products.

I’m a Senior Java developer with 13+ years of experience across FinTech, Consulting, WMS, Logistics and Healthcare. I bring a strong backend focus with Java/Kotlin and Spring Boot, while also delivering full-stack solutions with Angular and TypeScript.

In recent work, I designed and implemented large-scale integrations for availability checks for 100k+ orders, built shipment creation flows with external carrier integrations, and optimized the end-to-end order processing pipeline (synchronization, inventory validation, packaging workflow orchestration, and batching/processing). I also contributed to scalability and performance under high order volume and participated in architectural decisions and backend optimization initiatives.

As a hands-on team lead, I’ve owned microservices and delivery risk reduction through planning, decomposition, code reviews, refactoring, and performance optimization. Across banking and SaaS domains, I’ve handled high-load systems, migrated 10mlns+ records with minimal downtime, improved API performance by 10× through query optimization and tuning, and automated workflows that reduced manual workload dramatically.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Developer

Current

Scentbird

Aug 2024 - Present (1 year 11 months)

Designed and implemented large-scale integrations for inventory availability checks and real-time stock validation for order fulfillment. Built shipment creation flows with carrier integrations and improved the end-to-end order processing pipeline for scalability under high order volume.

Java Kotlin Spring Boot Hibernate JOOQ Gradle TypeScript GraphQL REST APIs PostgreSQL Elasticsearch AWS S3 Docker Kubernetes Junit

Java Developer | Team Lead

Andersen Lab

Jan 2023 - Oct 2024 (1 year 9 months)

Led a middle-sized team owning 10+ healthcare microservices, including task decomposition, technical investigations, refactoring initiatives, and architecture discussions. Performed regular 1:1s and code reviews and collaborated with architects, PMs, DevOps, and stakeholders to align technical and business goals.

Java Spring Boot Hibernate Maven Junit PostgreSQL SQL AWS RDS S3 SQS Grafana Kibana Docker Kubernetes Gitlab REST APIs

Full Stack Developer

BTSDigital

Feb 2022 - Dec 2022 (10 months)

Contributed to development of SSO for a B2B2C platform handling high request throughput, including authentication, identity verification, and personal data submission. Extended OAuth scopes, maintained an admin web application for partner configuration, and added logging/monitoring and anti-bot protections.

Java Kotlin Spring Boot Gradle TypeScript OAuth JWT PostgreSQL SQL Grafana Docker Amplitude Sentry Jaeger

Full Stack Developer

First Heartland Jusan Bank

Oct 2019 - Feb 2022 (2 years 4 months)

Developed and maintained high-load banking systems for cards, accounts, deposits, transfers, and payments, including integration with private providers and state services. Improved API performance by 10x, migrated 10M+ records to a new database architecture with minimal downtime, and implemented BPM orchestration for complex financial workflows.

Java Kotlin Spring Boot Maven TypeScript JavaScript PostgreSQL Hibernate SQL REST APIs SOAP SFTP Docker Corezoid (BPM)

Full Stack Developer | Team Lead

Alfa Bank Kazakhstan

Sep 2018 - Oct 2019 (1 year 1 month)

Developed and maintained internal banking systems for debt management and credit decision support. Built an intranet platform to streamline overdue payment processing (reducing manual workload by 20x), automated interbank payment request processing, and implemented mass generation and printing of payment documents (~90% manual automation).

C .NET Framework ASP.NET MVC Entity Framework WCF Oracle Pl SQL PostgreSQL SQL SOAP REST APIs HTML CSS JavaScript jQuery

Full Stack Developer

Kaspi Bank

May 2017 - Sep 2018 (1 year 4 months)

Developed and maintained an internal web platform for business partner onboarding, automating contract approval workflows and lifecycle management. Implemented SWIFT MT9xx message generation for B2B integration with Microsoft Dynamics ERP.

C .NET Framework ASP.NET MVC IIS WCF Entity Framework SQL AngularJS JavaScript HTML CSS REST APIs Selenium

Full Stack Developer | Team Lead

KazContract LLP

Jan 2015 - Apr 2017 (2 years 3 months)

Led development of a monetized tender aggregation SaaS platform and managed a team of 3 developers. Built large-scale parsing infrastructure and a subscription-based alert system for high-volume tender data and user notifications, including monetization logic and email infrastructure.

C .NET Framework ASP.NET MVC Entity Framework T SQL SQL HTML CSS JavaScript jQuery Windows Server

Full Stack / Mobile Developer

Wake Up Technology LLP

Jan 2014 - Jan 2015 (1 year)

Delivered multiple commercial web projects for industries including car dealerships, cargo transportation, taxis, and beauty salons. Built an advertising validation platform for Instagram content verification and designed/deployed multiple iOS apps, working from requirements gathering through deployment.