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I'm a software engineer who loves building robust backend systems and scalable platforms. I enjoy owning products end-to-end, from early design discussions through implementation, deployment, and ongoing support. I bring a holistic view to software engineering, balancing engineering excellence with pragmatic, delivery-focused pragmatism.…

Yigitalp Ertem

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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I'm a software engineer who loves building robust backend systems and scalable platforms. I enjoy owning products end-to-end, from early design discussions through implementation, deployment, and ongoing support. I bring a holistic view to software engineering, balancing engineering excellence with pragmatic, delivery-focused pragmatism.…

Available to hire

I’m a software engineer who loves building robust backend systems and scalable platforms. I enjoy owning products end-to-end, from early design discussions through implementation, deployment, and ongoing support. I bring a holistic view to software engineering, balancing engineering excellence with pragmatic, delivery-focused pragmatism.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Turkish

Fluent

German

Beginner

Work Experience

Senior Software Engineer at Labforward GmbH

June 1, 2022 - February 1, 2025

Own end-to-end development of core product features, building RESTful APIs and backend services with Java, Spring, MySQL, S3/MinIO, and RabbitMQ to support scientists managing lab data. Led technical design and implementation for signature workflow redesign, contributing across product analysis, database schema, and feature development. Collaborated with enterprise customers to resolve cross-cloud and on-premises deployment challenges. Resolved data bottlenecks by full-stack optimization, reducing response times for key customers by up to 90%.

Engineering Lead at Labforward GmbH

June 1, 2021 - June 1, 2022

Built and led a platform team of 4 engineers to launch the company’s first Platform service, an IAM solution using Keycloak (OpenID & OAuth 2). Balanced 50% hands-on development with team management, building core IAM features in Java. Initiated the Kubernetes migration, established Helm-based infrastructure, and collaborated with the DevOps team to build initial Terraform modules for AWS automation (EKS, load balancers).

Back End Engineer at Labforward GmbH

September 1, 2020 - May 1, 2021

Replaced blocking file export workflows with queue-based asynchronous processing using Java, Spring and RabbitMQ, improving system reliability. Optimized document versioning logic and validation algorithms, achieving 60% faster document processing and improved user experience.

Chief Technology Officer at Turna.com

January 1, 2019 - April 1, 2020

Transformed technical operations from ad-hoc to systematic by building engineering team processes including sprint planning, architecture decision records, and mentoring. Enabled enterprise distribution partnerships by designing and delivering public REST APIs for major travel aggregators, leading to a 20% increase in ticket sales. Built core transactional infrastructure including payment gateway integrations, real-time flight provider APIs, and RabbitMQ-based accounting for financial reconciliation.

Senior Software Engineer at Turna.com

March 1, 2015 - December 1, 2018

Architected full-stack flight search platform from scratch to handle high-volume traffic, designing data models and backend APIs using .NET MVC, .NET Core, SQL Server, Couchbase, and RabbitMQ. Developed key modules such as search and payment engines, external integrations, back-office apps, and performance/monitoring enhancements. Drove organic search visibility to top-3 ranking among Turkish B2C flight providers by implementing an SEO strategy with content, metadata, and performance optimizations.

Software Engineer at Anadolu Hayat Emeklilik

September 1, 2013 - March 1, 2015

Developed a real-time government integration covering life-insurance related data with Java. Built an admin web app for managing integration data with JavaServer Faces. Replaced legacy systems with modern solutions, reducing error rate by 70% and delay rate by 85%.

Research Assistant at Atilim University, Computer Engineering

September 1, 2010 - February 1, 2013

Assisted courses, prepared and evaluated homework and quizzes: Data Structures and Algorithms, Computer Architecture, Database Design and Management, Java Programming, Web Programming.