Skip to content
Ansagan Islamgaliev
PDF

Ansagan Islamgaliev

Senior Full-Stack .NET & React Engineer

Download PDF CV
Astana, KazakhstanPhone: +77001002400Email: ansaganie@hotmail.comLinkedIn: linkedin.com/in/ansaganieGitHub: github.com/ansaganie

Professional Summary

Senior full-stack engineer with 4+ years building enterprise software in C#, .NET 8, ASP.NET Core, React and Azure, currently for Chevron and Tengizchevroil. I modernize legacy applications: moving .NET Framework services to .NET 8, fixing slow screens, making web apps work offline for 500+ field staff, and speeding up release pipelines. Before software, I spent 6 years in oil & gas field operations.

Technical Competencies

  • Languages & Frameworks: C#, .NET 8, ASP.NET Core Web API, TypeScript, JavaScript (ES6+), React 18
  • Frontend & Visualization: React, Redux Toolkit, TanStack Table, Visx, D3.js, React Flow, Tailwind CSS, Vue.js, Dexie.js (IndexedDB), HTML5/CSS3
  • Backend & Cloud: ASP.NET Core Web API, .NET 8, Entity Framework Core 8, RESTful APIs, Clean Architecture, SQL Server, BFF Pattern, Microsoft Azure, Azure DevOps, Azure Service Bus, Azure Logic Apps, Azure Functions, Docker, CI/CD Pipelines, SonarQube
  • Architecture & Practices: Offline-First PWAs, Microservices & Distributed Systems, Policy-Based Authorization (MSAL), Performance Profiling, Domain-Driven Design

Work Experience

Senior Full-Stack Developer

Tengizchevroil / AtyrauTechInvest LLP (Chevron Central Agile Team) — Atyrau, Kazakhstan

Details & Deliverables

Core engineer in Chevron's Central Agile Team driving Turnaround (TA) Progress and Turnover Notes digitalization across web, mobile PWAs, and BFF microservices.

  • Fixed the slowest operational screens used by turnaround field teams by tuning .NET 8 / EF Core 8 queries and caching data client-side in IndexedDB.
  • Added offline support to the field PWA and moved its browser storage from deprecated WebSQL to IndexedDB (Dexie.js) for 500+ field staff.
  • Modernized backend Web API services from ASP.NET Framework 4.8 / EF6 to .NET 8 / EF Core 8, implementing custom policy authorization via Azure App Registration and MSAL.
  • Rebuilt the Oracle Primavera integration on Azure Service Bus, Logic Apps and WebJobs, replacing the old batch sync with messaging.
.NET 8ASP.NET Core Web APIC#ReactTypeScriptIndexedDBDexie.jsEntity Framework Core 8Azure Service BusAzure Logic AppsAzure WebJobsMSALTailwind CSS

Software Developer

Tengizchevroil / Norsec Delta Projects (Tengizchevroil) — Atyrau, Kazakhstan

Details & Deliverables

Full-stack frontend and data visualization engineer developing enterprise applications TEA-RECS (Wombat), VISI (Visual Inspection of Shut-Ins), and Whitespace Dashboard (WSD).

  • Engineered dynamic financial evaluation tools for Tengizchevroil Economics Acceleration via Rapid Evaluation Cycle Solution (TEA-RECS / Wombat), recognized as a key tool for Integrated Business Planning (IBP).
  • Developed dual-axis virtualized smart data grids combining TanStack Table with React Window and React Context API for massive tabular datasets.
  • Built customized interactive telemetry charts using Airbnb Visx and oil plant topology flowcharts in React Flow editor mode.
  • Sped up .NET web app release pipelines on Azure DevOps and automated PR validation.
  • Refactored oilfield simulation data backup workflows, lowering Azure Blob Storage expenditure.
  • Implemented CI pipelines with SonarQube SAST security and vulnerability scanning on development branches.
ReactTypeScript.NET 6C#VisxTanStack TableReact WindowReact FlowRedux ToolkitMaterial UIAzure DevOpsDockerSonarQube

Frontend Developer

Aviata.kz — Almaty, Kazakhstan

Details & Deliverables

Frontend developer for Kazakhstan's leading travel and ticketing platform (Aviata / Chocotravel).

  • Migrated customer-facing flight and train booking flows of chocotravel.com from a legacy PHP monolith to a Vue.js Single Page Application (SPA).
  • Built responsive mobile web-view components and design-system UI components with Vue 3, Pinia, and Tailwind CSS.
Vue.jsTypeScriptPiniaVue RouterTailwind CSSVue Test UtilsREST APIs

Geologist

Karachaganak Petroleum Operating B.V. (KPO) — Aksay, West Kazakhstan, Kazakhstan

Details & Deliverables

Geological monitoring specialist managing geodynamic field observation networks and industrial telemetry verification.

  • Coordinated geodynamic monitoring across a network of seismological stations and deep monitoring wells for gas and groundwater surveillance.
  • Assessed surface deformation risks and analyzed high-volume seismological data for field safety compliance.
Geodynamic MonitoringTelemetry AnalysisSeismic Data VerificationRisk Assessment

Mud Logging Engineer

Schlumberger (SLB Logelco Inc) — Atyrau, Kazakhstan

Details & Deliverables

Wellsite telemetry engineer monitoring drilling parameters, rock cuttings, and real-time computer data acquisition systems.

  • Operated real-time computerized sensor telemetry systems recording rig operations, mud flow, and drilling mechanics 24/7.
  • Acted as primary wellsite safety monitor detecting pressure anomalies and hazardous gas kicks.
  • Formulated technical data reports for drilling superintendents and operating company engineers.
Real-Time TelemetryIndustrial SensorsWellsite Safety SystemsData Acquisition

Enterprise Honors & Recognitions

  • Chevron Surface Digital Platform (SDP) Challenge Coin (Chevron)

    Invaluable contribution to the upgrade of the TA Pro and TO Notes applications to Progressive Web Apps.

    2024
  • TCO Recognition Certificate for Turnaround Digitalization (Tengizchevroil)

    Excellent Performance in Turnaround Digitalization.

    2024
  • TCO Recognition Certificate for TEA-RECS (Tengizchevroil)

    Development of the TEA-RECS applications as a key tool for Integrated Business Planning (IBP).

    2023

Certifications & Credentials

  • SAFe 6 Practitioner — Scaled AgileID: 49406639-9646
    2024-07Verify
  • Frontend Developer (React) — HackerRank
    2023-11Verify
  • JavaScript (Intermediate) — HackerRankID: dd99e082ab79
    2023-12Verify
  • React. Development of Complex Front-end Applications — HTML AcademyID: 1637434380
    2021-09Verify
  • JavaScript. Architecture of Front-end Applications — HTML AcademyID: 1631417950
    2021-07Verify

Education & Formal Qualifications

Bachelor of Engineering (B.E.) — Petroleum Engineering

Satbayev University (Kazakh National Research Technical University) (Almaty, Kazakhstan)

2016 — 2019

Associate of Science (A.S.) — Geological Methods of Prospecting and Exploration of Useful Minerals

Semey Geological Prospecting College (Semey, Kazakhstan)

2011 — 2015

Languages

Kazakh:Native (Ана тілі)
Russian:Fluent / Bilingual
English:Professional Working Proficiency