Senior .NET Developer (C#, Oracle, SSIS/SSRS)

TECKpert LLC.; Miami (FL); Hybrid; USD 108,000 - 132,000; Full time

Job summary

TECKpert LLC. is seeking a Senior .NET Developer to support a county government project in Miami, FL. This hybrid on-site role requires strong .NET, SQL, and ETL skills to migrate legacy systems to a modern Oracle-based platform, with emphasis on data integrity and secure integrations.

The candidate will work alongside county analysts, business users, and vendors in a collaborative, fast-paced environment. This is a contract position with potential extensions and competitive compensation.

Qualifications

• Proficient in C# and .NET MVC applications.
• Strong JavaScript and jQuery for dynamic web interactions.
• Oracle SQL/PLSQL experience and data modeling skills.
• Experience with MVC architecture, routing, and security best practices.
• Windows applications and web services (REST/SOAP) development.
• SSIS/SSRS ETL and reporting design, deployment, integration.
• Ability to modernize legacy systems (PEN, MS Access, Mainframe) to .NET/Oracle.
• Strong automation capability for workflows and online processes.
• Experience coordinating with cross-functional teams and external vendors.
• Excellent communication and collaboration across stakeholders.

Responsibilities

• Transition legacy systems to a modern .NET/Oracle permitting platform.
• Design and build C# .NET MVC applications with clean, maintainable code.
• Develop dynamic front-end functionality using JavaScript/jQuery/AJAX.
• Write and optimize Oracle PL/SQL queries and database structures.
• Build, tune, and maintain SSIS ETL packages and SSRS reports.
• Develop RESTful and SOAP web services for system integrations.
• Embed impervious surface reviews into workflows for permits and drainage.
• Implement automated workload assignment and workflow automation features.
• Create customer-facing capabilities for online submission, tracking, invoicing, payments, ECM integration.
• Coordinate with county analysts, business users, and vendors in a hybrid schedule.
• Ensure data integrity and compliance with environmental and historical preservation rules.
• Support the building permit process modernization project.

Skills

C#

JavaScript

SQL/PLSQL

MVC

Web services

SSIS/SSRS

RESTful/SOAP

Legacy migration

Automation workflows

Communication & collaboration

Job description

We are looking for a Senior .NET Developer to support our client based in Miami, FL.

US BASED CANDIDATES ONLY.

Candidates must be located in Miami, FL or the surrounding area. This is a hybrid position with onsite work in the West Miami-Dade area.

*No third parties and no sponsorship*

Who we are

Founded in 2009 and headquartered in beautiful Miami, FL, TECKpert is a tech consulting and staff augmentation firm. At TECKpert, we offer a contingent workforce built for any size digital transformation project. Experts in design, development, IT, analytics and marketing, provide innovative digital solutions to achieve success in our new economy. Our leaders identify the technical talent best suited to bolster our client's capabilities, across all industries, including, healthcare, government, finance, legal, real estate, and startups.

The Opportunity

TECKpert's client, a county government in Miami, FL, is modernizing its permitting and land development systems. The Senior .NET Developer will help transition legacy applications built on PEN, MS Access, and Mainframe into a modern .NET and Oracle based permitting platform, ensuring data integrity and validation throughout the migration.

Beyond the migration, you will embed impervious surface reviews into paving and drainage workflows, streamline the building permit process, and implement automated workload assignment. The work spans customer-facing web applications with online submission, tracking, invoicing, and payments, along with ECM integration. You will work alongside county analysts, business users, and vendors in a hybrid schedule.

Job duties include, but are not limited to:

• Transition legacy systems (PEN, MS Access, Mainframe) into the modern permitting platform, ensuring data integrity and validation throughout the migration process
• Design and build C# .NET MVC applications with clean, maintainable, well-documented code
• Develop dynamic front-end functionality with JavaScript, jQuery, and AJAX
• Write and optimize Oracle PL/SQL queries, stored procedures, and database structures
• Build, tune, and maintain SSIS ETL packages and design, deploy, and integrate SSRS reports
• Develop and secure RESTful and SOAP web services and Windows applications for system integrations
• Embed impervious surface reviews into paving and drainage workflows and optimize the building permit process
• Implement automated workload assignment and workflow automation features
• Build customer-facing capabilities for online submission, tracking, invoicing, payments, and ECM integration
• Support compliance with impervious surface review regulations, environmental and historical preservation requirements, and municipal sewer extension permits
• Coordinate with cross-functional teams, county analysts, and vendors

Compensation and Term

This opportunity is for a full-time, contract position with possible extensions and pay commensurate with experience up to $57.69 per hour or $120,000 per year. Medical, dental, vision and life insurance available after 30 days of hire.

Qualifications you need

A successful candidate has the following experience:

• C#: proficient in object-oriented programming, the .NET framework, debugging, and writing clean, maintainable code
• JavaScript and jQuery: strong grasp of core JavaScript concepts, DOM manipulation, asynchronous programming, and AJAX for dynamic web interactions
• Oracle and SQL: expertise in PL/SQL, query optimization, efficient queries, stored procedures, and database normalization
• MVC framework: ability to implement MVC architecture, routing, and security best practices
• Windows and web services: experience with Windows application development, RESTful and SOAP APIs, and authentication mechanisms for secure system integrations
• SSIS and SSRS: deep understanding of ETL processes, data transformations, performance tuning in SSIS, and designing, deploying, and integrating reports in SSRS
• Large-scale systems: practical knowledge of modernizing and integrating multiple applications and migrating legacy systems (PEN, MS Access, Mainframe) into modern platforms
• Project and process automation: ability to work with automated workflows, develop customer-facing applications, and implement online submission, tracking, invoicing, payments, and ECM integration
• Strong communication and collaboration skills, attention to detail, and the ability to coordinate with cross-functional teams, analysts, and vendors

Preferred (not required)

• Prior work in government agencies or organizations managing large-scale data migrations and system integrations
• Experience with permitting, land development, building, or public works systems
• Experience integrating enterprise content management (ECM) platforms
• Experience with online payment processing and invoicing in web applications

Working with us

Working with TECKpert means more options. As new opportunities arise, you tell us what you think is a good fit for you. What industries interest you most? Do you prefer an on-location, 9-5? Or would you want a flexible schedule and remote work? We proudly offer a wide variety of roles. Many of our TECKperts enjoy coworking and skills training coupled with the stability of full-time employment. We believe TECKpert gives today's digital professionals an agile path to start and advance their career. All of our opportunities require at least 20 hours per week and can be one to twelve months in length. Choose the opportunity that matches your interest and desired cadence.