Senior Application Support Engineer – Fintech Experience

Portfolio BI

Senior Application Support Engineer working closely with clients to troubleshoot and resolve application issues at Portfolio BI. Involved in supporting enterprise applications in the fintech sector.

Posted 5/28/2026full-timeBelgrade • 🇷🇸 SerbiaSeniorWebsite

Tech Stack

Tools & technologies

ETLSQL

About the role

Key responsibilities & impact

Develop deep expertise in Portfolio BI applications, client workflows, and supporting technologies
Investigate, troubleshoot, and resolve complex application, integration, and database-related issues
Analyze system behavior and perform root cause analysis for recurring production incidents
Develop and maintain integrations between Portfolio BI platforms and third-party applications
Design and deliver custom reports, web grids, and Windows-based solutions to meet client requirements
Optimize SQL queries, ETL processes, and database performance within production environments
Collaborate with Development, Product, and Infrastructure teams to implement scalable long-term solutions
Conduct proactive system audits and preventative maintenance activities
Manage multiple support requests and priorities while ensuring timely client communication and issue resolution
Maintain detailed documentation of issues, resolutions, and technical processes
Provide technical guidance and support to clients regarding application functionality and operational workflows

Requirements

What you’ll need

Bachelor’s degree in computer science, Engineering, Information Systems, or a related field
Strong experience troubleshooting enterprise applications in production environments
Demonstrated ability to read and understand C# code
Advanced SQL skills, including query development, performance tuning, and troubleshooting
Experience with ETL processes, data integrations, and database performance analysis
Understanding of n-tier application architecture and enterprise system design principles
Strong analytical and problem-solving skills with exceptional attention to detail
Ability to prioritize and manage multiple issues in a fast-paced, client-focused environment
Excellent written and verbal communication skills in English
Experience communicating directly with external clients and business stakeholders
**Preferred Qualifications**
Experience supporting financial systems or applications within the investment management industry
Understanding of buy-side operations, order management systems, trade execution, reconciliation, and reporting workflows

Benefits

Comp & perks

Hybrid role with access to a comfortable office in the center of Belgrade
Private medical insurance package, for you and your family
23 vacation days per year, increasing over time with your tenure
Permanent employment contract
Access to training and coaching platforms to support your professional development
Professional certifications sponsored by the company
Company Lunches & Socials

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

SQLC#ETL processesdatabase performance analysisapplication integrationroot cause analysisreport developmentweb gridsWindows-based solutionsn-tier application architecture

Soft Skills

analytical skillsproblem-solving skillsattention to detailprioritizationtime managementclient communicationtechnical guidancecollaborationdocumentationfast-paced environment

Certifications

Bachelor’s degree in computer scienceBachelor’s degree in EngineeringBachelor’s degree in Information Systems