b
backenddevelopp

Bunyad A

@backenddevelopp
5,0(2)

Senior backend developer, NET Core and Go, payment integrations and APIs

Turchia
Inglese, Turco, Azero
Alcune informazioni sono riportate in lingua inglese.
Chi sono
I’m a Senior Backend Developer with 8+ years of experience building secure, scalable, and high-performance systems using .NET and Go (Golang). I specialize in REST APIs, microservices, payment integrations, distributed systems, and third-party API integrations. I work with PostgreSQL, Redis, RabbitMQ, Docker, Docker Swarm, Elasticsearch, and CI/CD. I follow Clean Architecture, SOLID, and DDD principles to deliver reliable, maintainable solutions. Need a backend, API integration, or performance improvement? Let’s build it right. ... Continua a leggere

Competenze

b
backenddevelopp
Bunyad A
offline • 
Tempo di risposta medio: 1 ora

Consulta i miei servizi

Applicazioni web full stack
I will build your saas mvp backend with golang, vue js and postgresql
5,0(1)
Sviluppo CRM ed ERP
I will develop dynamics 365 CRM plugins, workflows and API integrations
5,0(1)

Esperienza lavorativa

ITT

Senior Software Developer

ITT • Full time

Mar 2023 - Jul 20263 yrs 4 mos

Led backend development for enterprise-grade CRM, ERP, payment, and business management platforms using Go (Golang), .NET Core, PostgreSQL, and Vue.js. Designed and delivered scalable, secure, and maintainable backend systems, with a strong focus on distributed architectures, payment infrastructure, system integrations, performance, and reliability. ### Key Responsibilities & Achievements • Developed scalable backend services and microservices using **Go (Golang), .NET Core, PostgreSQL, SQL, and Bun ORM**. • Designed and implemented **RESTful APIs**, database schemas, service integrations, and complex business workflows following **Clean Architecture, Domain-Driven Design (DDD), SOLID principles, and common design patterns**. • Designed **microservice and distributed system architectures**, including service-to-service communication, API Gateway / reverse proxy layers, and event-driven workflows. • Developed enterprise **CRM and ERP modules** covering payment processing, recurring/subscription billing, inventory management, approval workflows, accounting, donation management, sponsorship management, and reporting. • Built **event-driven and asynchronous processing systems with RabbitMQ**, including queues, background workers, message consumers, and reliable message processing. • Implemented distributed-system reliability patterns including **Outbox Pattern, Saga Pattern, idempotency, retries with backoff, circuit breakers, and fault-tolerant webhook processing**. • Integrated payment providers including **Craftgate, Stripe, and Kuveyt Türk Virtual POS**, covering payment flows, recurring payments, callbacks/webhooks, transaction status management, and duplicate-payment prevention. • Developed accounting and ERP integrations with **Mikro ERP** and other external systems. • Implemented secure **authentication and authorization** solutions using **Keycloak, OAuth 2.0, SSO, JWT, and role-based access control (RBAC)**. • Optimized **PostgreSQL database models,

2 Recensioni
5,0

(2)
(0)
(0)
(0)
(0)
Valutazione dettagliata
  • Livello di comunicazione del venditore
    5
  • Consiglia a un amico
    5
  • Servizio conforme alla descrizione
    5
1-2 di 2 recensioni
Ordina per
Più rilevante
    T

    testle

    JO

    Giordania

    5

    Very courteous and cooperative behavior

    50 USD

    Prezzo

    1 giorno

    Tempo

    gig

    Sviluppo CRM ed ERP

    Utile?
    No
    N
    image-docs

    nigarumarova

    TR

    Turchia

    5

    Delivery was incredibly fast and it is clear that the person is extremely talented in software development. His exceptional understanding of the project and excellent communication skills made the whole process seamless. I would definitely be excited to work with him again on any future project.

    Utile?
    No