Nurullah Gundogdu

Professional Summary

Backend Developer with over 3 years of professional experience in designing and building scalable microservices, distributed systems, and robust RESTful/gRPC APIs. Specialized in the Golang ecosystem with strong engineering practices in FinTech, modular monoliths, and data isolation architectures. Proven track record in optimizing database performance, leveraging modern observability tools, and executing test-driven cloud deployments.

Key Achievements

FinTech Architecture: Designed high-throughput transaction and ledger processing mechanisms for UK-based financial systems using reliable architectural patterns.
Observability & Monitoring: Enhanced system reliability and tracking accuracy by implementing production-grade metrics, distributed tracing, and dashboards using Prometheus, Grafana, and OpenTelemetry.
Advanced Patterns: Successfully enforced event-driven reliability and domain segregation utilizing Outbox Pattern, Domain-Driven Design (DDD), and Test-Driven Development (TDD).
Cloud & DevOps Mastery: Streamlined deployment lifecycles and enhanced system reliability through consistent containerization (Docker) and orchestration practices (Kubernetes).

Skills

Hard Skills (Languages & Frameworks): Golang, SQL, JavaScript, C#, React.js, React Native, Redux, Fiber (Go)

Hard Skills (Database & DevOps): PostgreSQL, MongoDB, Redis, Prometheus, Grafana, OpenTelemetry (OTel), Docker, Kubernetes, Git, gRPC, REST API

Soft Skills & Methodologies: Domain-Driven Design (DDD), Test-Driven Development (TDD), Outbox Pattern, Modular Monoliths, Agile Development, System Architecture Design

Professional Experience

Backend Developer Istanbul, Turkey (UK-Based Fintech)

Architecting and scaling backend services for a UK-based FinTech and digital asset exchange ecosystem using Golang.
Designing a highly structured modular monolithic application architecture adhering to Domain-Driven Design (DDD) principles.
Implementing the Transactional Outbox Pattern to guarantee reliable event-driven data propagation and atomicity between domain modules.
Enforcing strict system stability by implementing comprehensive testing pipelines using Test-Driven Development (TDD) methodologies.
Integrating modern system observability by setting up distributed tracing and telemetry using Prometheus, Grafana, and OpenTelemetry (OTel) for zero-downtime diagnostic capabilities.
Developing secure, isolated data environments leveraging single-tenant PostgreSQL database schemas to maximize client data security.
Designing and maintaining backend workflows in strict compliance with PCI DSS standards to ensure bulletproof security for financial transactions and sensitive user data.

Full Stack Developer Istanbul, Turkey

Spearheaded full-stack development lifecycle, designing responsive user interfaces with React and Redux and integrating them with robust Golang backend architectures.
Designed, developed, and launched critical internal management modules, notably the Planning Panel and Warehouse Panel, which accelerated daily operations by 40% for cross-functional teams.
Optimized backend search algorithms and restructured MongoDB queries, reducing API response times by 60% (from 800ms to 320ms) and improving overall platform scalability.
Integrated AI APIs into the core business logic to automate data handling, decreasing manual content processing times by 35% and saving approximately 15 hours per week.
Contributed heavily to DevOps and infrastructure stability by configuring containerized workflows with Docker and assisting in Kubernetes deployments, maintaining continuous delivery pipelines.

Software Developer Intern Istanbul, Turkey

Contributed to microservice-based projects using .NET Core and PostgreSQL within an Agile team environment.
Assisted in designing backend components and refactoring legacy codebases, resulting in improved code readability and maintainability.
Gained hands-on experience with REST API development and collaborative Git version control systems.

Professional Summary

Key Achievements

Skills

Professional Experience

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