Note: The job is a remote job and is open to candidates in USA. Intellisoft Technologies is seeking a Senior Dotnet Developer to design, develop, test, and maintain full-stack applications across front-end, back-end, and database layers. The role also supports POS and IBM i operations, including production troubleshooting, store data retrieval, integrations, and deployments.

Responsibilities

• Design, develop, and maintain full stack web applications and internal tools, encompassing front-end UI, back-end APIs, and database layers, using C#/.NET, Python, JavaScript/TypeScript, and related frameworks
• Build and maintain RESTful APIs and back-end services that integrate with POS systems, IBM i (AS/400) DB2 data sources, and third-party platforms (MoneyGram, Ingenico, Panini, bill pay providers)
• Develop and maintain front-end user interfaces using modern frameworks (React, Angular, or Vue.js); collaborate with stakeholders to translate business requirements into functional, user-friendly screens
• Perform store-level incident investigation and production troubleshooting, including pulling POS transaction logs, reconstructing transaction sequences, comparing store configurations, and isolating root causes
• Execute SQL-based data extractions against IBM i DB2 (ACEDATA tables) and Microsoft SQL Server to support production troubleshooting, reporting, audits, and ad hoc analytical requests
• Analyze and validate store-level deployment configurations; detect missed deployments, configuration discrepancies, and DLL mismatches using WinMerge and configuration file comparison techniques
• Retrieve and deliver store artifacts including check images, receipts, and transaction records from POS store drives (via UNC path) and IBM i IFS, supporting compliance, audit, and evidence collection requests
• Manage and maintain scheduled tasks and applications on the jump server; coordinate application deployments and service account transitions with DevOps
• Participate in code reviews, maintain version control discipline using Git and/or TFS, and contribute to CI/CD pipeline development and deployment processes
• Collaborate with cross-functional IT teams (DevOps, Loans, Cards, Bill Pay, Sales Audit, Banking) for issue escalation, feature delivery, and knowledge sharing
• Maintain and synchronize project files, SQL reference queries, troubleshooting guides, and technical documentation to shared drives for team access

Skills

• Minimum 10+ years of full stack development experience, with demonstrated delivery across front-end, back-end, and database layers in a production environment
• Bachelor's degree in Computer Science, Information Systems, Software Engineering, or a related field; or equivalent combination of education and experience
• Proficient in C# (.NET) and/or Python; experience building server-side application logic, APIs, and utility applications in Visual Studio 2022 or later
• Working proficiency in JavaScript or TypeScript with at least one modern framework (React, Angular, or Vue.js); familiar with HTML5, CSS3, and responsive design
• Strong working knowledge of SQL; experience querying IBM i DB2 and Microsoft SQL Server, including multi-table joins, stored procedures, and transaction-level data extraction
• Demonstrated experience with point-of-sale system architecture, debug log interpretation, configuration file management, and store-level troubleshooting via UNC path access
• Practical familiarity with IBM i IFS navigation, DB2 for i SQL, and store data retrieval workflows
• Proficiency with WinMerge, Agent Ransack, DBeaver, SQL Server Management Studio, Notepad++, and Windows Task Scheduler
• Experience with Git and/or TFS; familiarity with CI/CD pipelines and deployment processes
• Strong written and verbal communication skills; ability to document technical processes, write clear API and system documentation, and share knowledge effectively
• Experience with ACEDATA or equivalent IBM i table structures
• Jump server access and administration experience
• Experience with cloud platforms (Azure, AWS, or GCP), containerization (Docker), or PowerShell scripting
• Background in financial services, retail operations, or multi-store POS environments

Benefits

• Remote

Company Overview

• Intellisoft Technologies is an information technology company offering big data and clouding solutions. It was founded in 1997, and is headquartered in Farmers Branch, Texas, USA, with a workforce of 201-500 employees. Its website is http://intellisofttech.com.

Company H1B Sponsorship

• Intellisoft Technologies has a track record of offering H1B sponsorships, with 17 in 2026, 40 in 2025, 33 in 2024, 22 in 2023, 20 in 2022, 29 in 2021, 37 in 2020. Please note that this does not guarantee sponsorship for this specific role.