Middleware Engineer ( Only Consulting working with NYC DSS/HRA)

Innovee Consulting LLC; New York (NY); On-site; USD 90,000 - 130,000; Full time

Job summary

Innovee Consulting LLC is seeking a Middleware Engineer in Brooklyn, NY for a long‑term consulting engagement with NYC DSS/HRA. The role focuses on system design, integrations, and API development across enterprise platforms.

You will develop, test, and maintain APIs and backend components, build middleware integrations, and ensure secure, reliable data exchange between agency systems and external platforms.

Qualifications

• 4+ years in middleware and integration tooling.
• Experience with multiple platforms and databases.
• Hands-on with IBM Integration Bus and web services.

Responsibilities

• Develop system design specifications and design documentation.
• Create APIs and backend database components.
• Build and maintain middleware integrations for data exchange.
• Perform testing/evaluation and support QA cycles.
• Monitor health checks and ensure secure access across environments.

Skills

Middleware Expertise

API Development

SOA & Integration

Database: Oracle/SQL Server

Web Services

Data Analysis

Tools

IBM Integration Bus

REST/SOAP/Web Services

XML/JSON

Job description

Duration: Long Term

Only Consulting working with NYC DSS/HRA

• Develop System Design Specifications
• Prepare design documentation for solutions that meet system and security requirements, including evaluation of alternative approaches.
• Develop detailed specifications covering integrations, databases, network architecture, security, and software configurations.
• Create structured diagrams to represent database designs, communication systems, and network paths.
• Develop, compile, maintain, and document configurations for databases, servers, monitoring systems, packaged applications, utilities, and ecosystem components.
• Implement enhancements to existing integrations to accommodate security updates or mapping changes.
• Develop System Documentation
• Develop operational and installation procedures for communication systems, hardware, network, security, storage and software.
• Develop guidelines and upgrade techniques of new operational procedures for the support of databases, hardware systems, operating systems software, network systems software, security and client server systems.
• Develop detailed systems operations designs and architecture diagrams.
• Prepare the details for all new integrations and the corresponding data transmissions between the ecosystems.
• Perform System Design/Development
• Create, test, and maintain APIs and backend database components.
• Build integrations to enable data exchange between agency systems and external platforms, as well as across internal ecosystem applications.
• Develop and enhance middleware integrations to support new and evolving business requirements.
• Provide general programming support and assistance to other technical staff and related projects as needed.
• Perform daily health checks and proactive monitoring of middleware integrations to ensure uninterrupted application performance.
• Monitor scheduled jobs and system traffic to confirm successful processing of all requests.
• Manage environment credentials and configurations to maintain secure access across development, QA, and production environments.
• Investigate and resolve integration issues by rerunning processes or coordinating with vendors and partner teams to process pending requests.
• Review database logs for exceptions and take proactive measures to resolve integration issues, preventing service disruptions during business hours.
• Check queues and reprocess transactions as needed to ensure timely and reliable data delivery across integrated systems.
• Monitor server health and system activity to ensure agency applications operate smoothly, enabling timely case transmission and processing.
• Build a new training environment to support staff onboarding and training activities.
• Perform Testing/Evaluation
• Conduct unit testing newly developed and modified integrations to verify individual components function as designed.
• Support QA test cycles by executing integration test scenarios and ensuring all functional requirements are met prior to production deployment, and assisting with performance testing as needed.
• Test APIs and integrations across different data formats used by integrated system modules.
• Provide support for middleware components, including message flows, queues, and web services used for data exchange.
• Develop guaranteed delivery message flows to ensure no loss of client data after submission.
• Build and automate log monitoring processes, including notifications and alerts for failures or exceptions.
• Develop, implement, and monitor information technology quality assurance standards.

Role: Middleware Engineer

Location: Brooklyn, NY

Duration: Long Term

Only Consulting working with NYC DSS/HRA

Responsibilities

• Develop System Design Specifications
• Prepare design documentation for solutions that meet system and security requirements, including evaluation of alternative approaches.
• Develop detailed specifications covering integrations, databases, network architecture, security, and software configurations.
• Create structured diagrams to represent database designs, communication systems, and network paths.
• Develop, compile, maintain, and document configurations for databases, servers, monitoring systems, packaged applications, utilities, and ecosystem components.
• Implement enhancements to existing integrations to accommodate security updates or mapping changes.
• Develop System Documentation
• Develop operational and installation procedures for communication systems, hardware, network, security, storage and software.
• Develop guidelines and upgrade techniques of new operational procedures for the support of databases, hardware systems, operating systems software, network systems software, security and client server systems.
• Develop detailed systems operations designs and architecture diagrams.
• Prepare the details for all new integrations and the corresponding data transmissions between the ecosystems.
• Perform System Design/Development
• Create, test, and maintain APIs and backend database components.
• Build integrations to enable data exchange between agency systems and external platforms, as well as across internal ecosystem applications.
• Develop and enhance middleware integrations to support new and evolving business requirements.
• Provide general programming support and assistance to other technical staff and related projects as needed.
• Perform daily health checks and proactive monitoring of middleware integrations to ensure uninterrupted application performance.
• Monitor scheduled jobs and system traffic to confirm successful processing of all requests.
• Manage environment credentials and configurations to maintain secure access across development, QA, and production environments.
• Investigate and resolve integration issues by rerunning processes or coordinating with vendors and partner teams to process pending requests.
• Review database logs for exceptions and take proactive measures to resolve integration issues, preventing service disruptions during business hours.
• Check queues and reprocess transactions as needed to ensure timely and reliable data delivery across integrated systems.
• Monitor server health and system activity to ensure agency applications operate smoothly, enabling timely case transmission and processing.
• Build a new training environment to support staff onboarding and training activities.
• Perform Testing/Evaluation
• Conduct unit testing newly developed and modified integrations to verify individual components function as designed.
• Support QA test cycles by executing integration test scenarios and ensuring all functional requirements are met prior to production deployment, and assisting with performance testing as needed.
• Test APIs and integrations across different data formats used by integrated system modules.
• Provide support for middleware components, including message flows, queues, and web services used for data exchange.
• Develop guaranteed delivery message flows to ensure no loss of client data after submission.
• Build and automate log monitoring processes, including notifications and alerts for failures or exceptions.
• Develop, implement, and monitor information technology quality assurance standards.

Required Skills

A minimum of 4 years of experience with the following skill sets:

• Application Development & Middleware Expertise - Experience in application software development using middleware platforms and integration tools, along with strong skills in data analysis, data access, data structures, data manipulation, databases, design, programming, testing, and implementation
• Documentation & Software Conversion - Preparing technical and user documentation, as well as performing software conversions.
• Multi-Platform Environment Exposure - Exposure to diverse environments including mainframe, mid-range systems, personal computers, and laptops
• Database Expertise - Working with Relational databases including but not limited to Oracle and SQL Server
• IBM Integration Bus & Web Services - Hands-on experience in enterprise middleware platform flow development and administration, along with web service development and consumption
• SOA & Integration Technologies - Strong knowledge of Service-Oriented Architecture (SOA) trends and standards, including XML, JSON, REST APIs, SOAP APIs, XML schemas, and WSDL usage