I'm a software engineer with 6+ years of experience delivering enterprise applications using C#, .NET, Angular, SQL Server, and Azure. I thrive in agile teams and enjoy turning complex requirements into clean, maintainable code. Beyond coding, I bring a strong background in database design, BI, and data solutions, with experience across the full software lifecycle—from refactoring legacy systems to deploying cloud-based solutions. I value collaboration, continuous learning, and delivering high-quality outcomes.

Aleksandra Heliak

I'm a software engineer with 6+ years of experience delivering enterprise applications using C#, .NET, Angular, SQL Server, and Azure. I thrive in agile teams and enjoy turning complex requirements into clean, maintainable code. Beyond coding, I bring a strong background in database design, BI, and data solutions, with experience across the full software lifecycle—from refactoring legacy systems to deploying cloud-based solutions. I value collaboration, continuous learning, and delivering high-quality outcomes.

Available to hire

I’m a software engineer with 6+ years of experience delivering enterprise applications using C#, .NET, Angular, SQL Server, and Azure. I thrive in agile teams and enjoy turning complex requirements into clean, maintainable code.

Beyond coding, I bring a strong background in database design, BI, and data solutions, with experience across the full software lifecycle—from refactoring legacy systems to deploying cloud-based solutions. I value collaboration, continuous learning, and delivering high-quality outcomes.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
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Language

English
Fluent

Work Experience

Software Engineer at Sage Software
March 1, 2020 - November 1, 2021
Designed, developed, and implemented new features for Sage Payroll software; refactored legacy code to improve performance, maintainability, and scalability; optimized SQL queries; produced technical documentation; resolved production issues within tight deadlines; participated in code reviews, testing, and technical design discussions; worked with Azure-hosted environments for development, troubleshooting, and deployment.
Software Engineer at Sage Software
May 1, 2022 - February 1, 2026
Designed, developed, and implemented new business solutions for Sage Payroll software; enhanced and maintained existing applications by implementing new features, improvements, and change requests; analysed, refactored, and optimized legacy code to improve application performance, maintainability, and scalability; produced technical documentation; resolved production issues within strict deadlines; participated in code reviews, testing activities, and technical design discussions; worked with Azure-hosted environments for development, troubleshooting, and deployment.
Application Support Analyst at Flexirent
February 1, 2018 - March 1, 2019
Provided support and incident management for multiple business-critical systems, ensuring service availability and resolution of issues within SLA targets; designed and maintained secure file transfer workflows and integrations using GoAnywhere MFT; enhanced internal applications and automated business processes using C#, Visual Basic, and SQL; developed SQL reporting solutions and data extracts to support operational & business requirements; performed root cause analysis and implemented improvements to enhance system reliability and performance.
C++/SQL Developer at Credit Suisse
July 1, 2016 - September 1, 2017
Designed, developed, and implemented software solutions using C++ and SQL to support critical business and operational requirements; built and optimized database objects (stored procedures, functions, and schemas) in Sybase ASE and Microsoft SQL Server, improving performance and scalability; investigated and resolved production incidents, software defects, and support tickets within strict SLA deadlines in mission-critical environments; code refactoring, peer reviews, technical documentation, and Linux-based application support.
Business Analyst/ BI Developer at Credit Suisse
May 1, 2015 - June 1, 2016
Gathered and analysed business requirements, translating them into technical specifications and solution designs; designed analytical reports, trend analyses, and forecasting solutions to support business reporting and data driven decision-making; developed business intelligence solutions using SAP BusinessObjects and Tableau; created advanced SQL reporting solutions and ETL processes; provided technical documentation including requirements, specifications, UML/BPMN models, data dictionaries, and report mock-ups.
Business Intelligence Specialist/ BI Developer at Credit Suisse
March 1, 2013 - April 1, 2015
Designed, developed, and delivered automated reports using SAP BusinessObjects, transforming complex Excel-based reporting into scalable reporting solutions; developed reporting at various aggregations; created advanced SQL queries, stored procedures for reporting and analytical purposes; performed ETL processes using Informatica to load data into Oracle DB.

Education

Master of Business Information Systems at Wroclaw University of Technology, Poland
January 11, 2030 - June 1, 2013
Master of Managerial Economics at Wroclaw University of Technology, Poland
January 11, 2030 - October 1, 2012
Bachelor of Economics at Wroclaw University of Technology, Poland
January 11, 2030 - September 1, 2009

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Financial Services, Professional Services, Education