Data Engineer

Company Description OBSS is Turkey’s largest technology consultancy, pioneering product development and technology consulting for an AI-native future. With more than 20 years of experience and offices in Istanbul, Ankara, London we empower leading companies in banking and finance, insurance, e-commerce, retail, and the start-up ecosystem. Our team of over 1000 talented professionals thrives on collaboration, innovation, and continuous learning.

Position Overview

We are seeking a highly skilled Data Engineer to drive data-driven transformation across our international organization. In this greenfield environment, you will play a key role in fully automating the reporting ecosystem, onboarding new data sources, and solving exciting technological challenges. The position requires a deep understanding of the banking domain, core banking system data, and financial products to effectively develop and maintain the enterprise SQL data warehouse. You will also bridge legacy infrastructure with modern workflows by reverse-engineering complex setups involving MS Access, text files, and Excel reports into robust automated pipelines. Collaboration is central to this role, as you will consult directly with cross-functional business stakeholders to ensure high-quality data delivery from staging to data marts.

Main Responsibilities

• Onboard new data sources into the Data Warehouse from staging through to data marts while maintaining strict data quality standards.
• Maintain, optimize, and continuously develop the core SQL Server data warehouse.
• Execute user stories focused on source onboarding, adding new fields, and delivering custom reporting requests.
• Reverse-engineer complex legacy setups relying on MS Access, Excel reports, and text files to convert them into scalable data solutions.
• Collaborate and consult with cross-functional business teams across the bank to automate reporting environments and align technical solutions with business needs.

Qualifications & Technical Skills

• At least 5+ years of proven experience in Data Modeling, Database Administration, and Database Management.
• 5+ years of deep T-SQL development expertise, including writing complex stored procedures, functions, views, triggers, and query optimization.
• At least 3+ years of experience in the banking sector with in-depth knowledge of financial products, core banking systems, and their underlying data structures
• Expertise in data engineering tools such as Python and Apache Airflow for pipeline development and workflow orchestration.
• Strong knowledge of Git and collaborative version control workflows.
• Practical experience in reverse-engineering complex legacy setups (MS Access, Excel, text files) and migrating them into modern data pipelines.
• Exceptional problem-solving and analytical skills focused on automation, paired with effective communication skills to convey technical concepts to non-technical stakeholders.

Professional Growth & Learning

As a tech company, we focus on reskilling and upskilling to support career growth. We offer a personalized Individual Growth Program (IGP), where employees set clear goals for each half of the year. These goals may include trainings, certifications, and personal development milestones, creating a structured roadmap for continuous improvement. The IGP helps employees strengthen both technical and soft skills, ensuring steady professional advancement.

Company Culture and Values

We celebrate diversity, inclusion, and equal opportunity, fostering a collaborative environment where innovation can flourish. Our culture emphasizes mentorship, knowledge sharing, and active participation in tech communities, workshops, and team events. This vibrant atmosphere empowers employees to contribute their best while feeling supported and valued.

Benefits and Perks

We provide competitive salaries, flexible and hybrid working arrangements, and a wide range of opportunities for growth through training programs, certifications, and workshops. In addition, we offer initiatives designed to build a supportive and engaging workplace where curiosity and collaboration are encouraged. These benefits ensure that employees feel motivated, empowered, and equipped to reach their full potential.