Intermediate/Senior Informix -  HP-UX -4GL

📍 Job Overview

Job Title: Intermediate/Senior Informix - HP-UX - 4GL Developer

Company: VTekis Consulting LLP

Location: Chicago, Illinois, United States

Job Type: Contract

Category: Legacy Systems Modernization / ERP Development

Date Posted: March 17, 2026

Experience Level: Intermediate/Senior (5+ years)

Remote Status: On-site

🚀 Role Summary

• This contract role focuses on the critical task of supporting and modernizing a mission-critical Legacy ERP platform, requiring deep expertise in Informix 4GL and associated legacy technologies.

• The position involves bridging the gap between legacy systems and modern requirements, specifically through API build-out and integration projects.

• Successful candidates will play a key role in system modernization, technical troubleshooting, and ensuring high-quality deployments within a Unix/Linux environment.

• This opportunity demands strong collaboration with both onsite and offshore teams, emphasizing clear communication and technical leadership.

📝 Enhancement Note: The job title and description strongly indicate a role focused on maintaining and evolving a legacy ERP system rather than a typical Revenue Operations or Sales Operations role. The primary focus is on backend development, database management, and system integration using older, specialized technologies. Therefore, the "Category" has been adjusted to reflect this specialization, and the subsequent sections will be tailored to this specific technical domain, drawing parallels to operations where applicable (e.g., ERP system impact on supply chain operations).

📈 Primary Responsibilities

• Directly manage and execute development and maintenance tasks for the core Informix 4GL legacy ERP platform.

• Lead the design, build-out, and implementation of APIs to facilitate integration with modern platforms like Salesforce and e-commerce solutions.

• Perform complex technical troubleshooting, addressing application issues and optimizing database performance using tools like oncheck and set explain.

• Write and optimize clean, maintainable code in Informix 4GL, Genero BDL, and Unix Shell Scripting (Korn, Awk).

• Collaborate with cross-functional teams to design and implement solutions that migrate legacy logic to modern requirements, such as transitioning from Informix 4GL to Genero BDL.

• Lead and execute integration, User Acceptance Testing (UAT), and performance testing activities to ensure successful, low-disruption deployments.

• Manage and resolve escalated incidents and work orders from the Service Desk, strictly adhering to Service Level Agreements (SLAs).

• Maintain comprehensive technical documentation for the legacy ERP system, its integrations, and modernization efforts.

• Operate and manage applications within a Unix/Linux environment, ensuring system stability and efficiency.

• Daily coordination and technical guidance for three offshore team members to ensure project alignment and successful task completion.

📝 Enhancement Note: The primary responsibilities are heavily weighted towards legacy system maintenance and modernization. While these systems underpin operational processes (like Supply Chain), the role itself is a technical development and support function, not a strategic operations management role. The responsibilities have been detailed to reflect the specific technical demands.

🎓 Skills & Qualifications

Education:

Experience:

• Minimum of 5 years of hands-on experience with the Informix legacy platform, specifically with Informix 4GL.

• Demonstrated experience in system modernization and design, particularly in bridging legacy logic with modern requirements.

• Proven track record in technical troubleshooting and performance tuning of complex applications and databases.

• Experience leading integration, UAT, and performance testing initiatives.

Required Technical Skills:

• Primary Languages: Expert-level proficiency in Informix 4GL, Genero BDL, and SQL.

• Operating Systems: Mastery of Unix-based systems, with specific emphasis on HP-UX. Proficiency in IBM AIX and Linux is also highly valued.

• Database Management: Advanced knowledge of IBM Informix Dynamic Server (IDS), including utilities like oncheck and set explain for diagnostics.

• Scripting: Proficiency in Unix Shell Scripting, including Korn and Awk.

• Integrations: Understanding of EDI standards (e.g., 810, 820), XML, and API integration concepts (RESTful/SOAP).

• Version Control: Hands-on experience with Git, GitHub, or GitLab for code management.

Secondary/Integration Skills:

• Proficiency in Java, Python, or Perl for integration tasks and supporting modern application components.

Preferred Domain Knowledge:

• Strong business understanding of ERP Supply Chain concepts, including Order Creation, Pick-Pack-Ship processes, Invoicing, and Bill of Materials (BOM).

• Familiarity with Warehouse Management Systems (WMS) and manufacturing workflows.

📝 Enhancement Note: The skills are highly specialized and technical, reflecting a deep requirement for legacy system expertise. The "Operations" context is derived from the impact of these systems on Supply Chain operations, rather than direct operational management. The AI-generated ai_key_skills and ai_keywords have been instrumental in detailing these requirements.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Demonstrate successful projects involving the modernization or significant enhancement of legacy ERP systems.

• Showcase examples of API development and integration, particularly for connecting older systems with modern platforms (e.g., Salesforce, e-commerce).

• Provide evidence of code optimization and performance tuning in Informix 4GL, Genero BDL, or SQL, highlighting measurable improvements.

• Include case studies or project descriptions that illustrate experience with Unix/Linux environments and shell scripting for automation or data manipulation.

Process Documentation:

• Workflow design and optimization for legacy system maintenance and integration projects.

• Implementation methodologies for migrating or enhancing legacy codebases.

• Performance analysis and troubleshooting processes for Informix databases and applications.

• Change management and testing processes for deploying updates to critical ERP systems.

📝 Enhancement Note: Given this is a contract role focused on technical development and maintenance, a traditional "operations portfolio" might not be as relevant as a portfolio showcasing technical project execution, problem-solving, and system integration capabilities. The requirements are framed to align with demonstrating these technical competencies rather than strategic operational planning.

💵 Compensation & Benefits

Salary Range:

Benefits:

• As a contract position through VTekis Consulting LLP, benefits may vary. Typically, contract roles may offer:
  • Competitive hourly rate.
  • Potential for contract extension based on performance and project needs.
  • Access to specific project-based benefits as defined by VTekis Consulting.

Working Hours:

• The standard working hours are expected to be 40 hours per week, aligning with typical full-time contract engagements.

• Flexibility may be required to coordinate with offshore teams, potentially involving early morning or late afternoon calls.

• The role is on-site, requiring consistent presence at the designated Chicago location.

📝 Enhancement Note: Salary is an estimation for a contract role based on the specified skills and location. Benefits are generalized for contract positions, as specific offerings are usually detailed by the contracting agency. The role is explicitly on-site.

🎯 Team & Company Context

🏢 Company Culture

Industry: Staff Augmentation, Recruitment Process Outsourcing, Contract Hiring, Direct Hire, Outsourced Solutions (Technology & Staffing Services)

Company Size: VTekis Consulting LLP is likely a medium-sized firm, typical for specialized staffing and consulting agencies. Their focus on providing "complete solutions" suggests a broad reach within the staffing ecosystem.

Founded: Information not provided, but the company's operational model implies established experience in the staffing industry.

Team Structure:

• The immediate project team is described as small and lean, consisting of one onsite resource (this role) and three offshore members.

• The reporting structure likely involves a project manager or lead from VTekis Consulting, with functional reporting to the client's IT or project leadership.

Methodology:

• The company's core methodology revolves around "Staff Augmentation" and "Recruitment Process Outsourcing," focusing on finding the "perfect fit" for client needs.

• For this specific role, the methodology will involve agile or hybrid approaches for software development and maintenance, emphasizing communication, collaboration, and adherence to SLAs.

• Process optimization is key, particularly in modernizing legacy systems and integrating them with newer technologies.

Company Website: VTekis Consulting LLP (Note: The provided URL was null, but a domain vtekis.com was inferred, suggesting their primary web presence.)

📝 Enhancement Note: The company's focus is on providing staffing solutions. The culture for this specific role will be a blend of the agency's operational standards and the client's project environment. The team structure emphasizes remote collaboration and project management.

📈 Career & Growth Analysis

Operations Career Level: This role is for an Intermediate to Senior Technical Developer specializing in legacy systems. It is not a direct operations management role but supports critical operational functions through system development and maintenance. The scope includes direct responsibility for core platform development and integration leadership.

Reporting Structure:

• The role reports to a Project Manager or Lead within VTekis Consulting LLP and works closely with the client's IT department or business unit managing the ERP system.

Operations Impact:

• While not a direct "operations" role, the successful modernization and stable functioning of the Legacy ERP platform have a profound impact on the company's Supply Chain operations. This includes order processing, inventory management, shipping, and invoicing.

Growth Opportunities:

• Specialization: Deepen expertise in Informix 4GL, Genero BDL, and HP-UX, becoming a sought-after specialist in a niche but critical technology area.

• Modernization Experience: Gain valuable experience in system modernization projects, bridging legacy systems with modern architectures (APIs, cloud integrations), which is a high-demand skill.

• Leadership: Opportunity to lead and mentor offshore development teams, enhancing project management and cross-cultural communication skills.

• Contract to Hire Potential: Depending on performance and client needs, there may be opportunities for contract extensions or even conversion to a permanent role within the client organization or VTekis.

📝 Enhancement Note: The "growth" here is focused on technical specialization and project leadership within the legacy systems domain, rather than traditional GTM or RevOps career paths. The impact is significant on the operational backbone of the business.

🌐 Work Environment

Office Type: The role is on-site in Chicago, IL, implying a professional office environment typical for consulting firms or client IT departments.

Office Location(s): Chicago, Illinois, USA. Specific office details (e.g., building name, address beyond "Illinois 43") are not provided but are expected to be a standard business office.

Workspace Context:

• The workspace will likely support collaboration with onsite colleagues and provide the necessary infrastructure for development tasks.

• Access to development tools, Informix IDS instances, HP-UX servers, and version control systems will be crucial.

Work Schedule:

• Standard business hours (likely 9 AM to 5 PM local time) are expected, totaling 40 hours per week.

• Flexibility may be needed for critical deployments, urgent issue resolution, or to accommodate time zone differences with the offshore team.

📝 Enhancement Note: The environment is a standard on-site office setting, with a strong emphasis on remote team coordination.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A call with a VTekis Consulting recruiter to assess basic qualifications, experience with Informix 4GL, and contract expectations.

• Technical Interview: A deep-dive technical interview with a senior technical resource or hiring manager, focusing on Informix 4GL, HP-UX, SQL, API concepts, and troubleshooting scenarios. This may involve coding exercises.

• Project/Client Interview: An interview with the client's IT leadership or project manager to discuss project scope, team dynamics, and assess cultural fit and communication skills, especially regarding offshore team coordination.

• Offer: If successful, an offer for the contract role will be extended.

Portfolio Review Tips:

• Technical Depth: Highlight specific Informix 4GL projects, detailing the complexity, your role, and the outcomes.

• Modernization Examples: Showcase any experience in migrating or integrating legacy systems, particularly with modern technologies like APIs and cloud platforms.

• Problem-Solving: Prepare to discuss challenging technical issues you've resolved, demonstrating your troubleshooting methodology and the tools used (e.g., oncheck, set explain).

• Team Coordination: Be ready to explain how you have managed or collaborated with remote or offshore teams, emphasizing communication strategies and leadership.

• Code Samples: If possible and appropriate, have well-documented code samples or examples of complex scripts/queries ready to discuss.

Challenge Preparation:

• Be prepared for technical challenges that might involve:

  • Debugging a hypothetical Informix 4GL code snippet.
  • Optimizing a slow SQL query for Informix IDS.
  • Designing a basic API endpoint for data retrieval from an Informix database.
  • Writing a simple Unix shell script for a common administrative task.

• Focus on clearly articulating your thought process, the tools you would use, and the potential trade-offs in your solutions.

📝 Enhancement Note: The interview and portfolio review process is tailored to a technical development role. The emphasis is on demonstrating deep technical expertise in legacy systems and integration capabilities.

🛠 Tools & Technology Stack

Primary Tools:

• Core Development: Informix 4GL, Genero BDL

• Database: IBM Informix Dynamic Server (IDS)

• Operating Systems: HP-UX, IBM AIX, Linux (primarily HP-UX expected)

• Scripting: Korn Shell, Awk

• Database Utilities: oncheck, set explain

Integration Technologies:

• API Standards: RESTful, SOAP

• Data Formats: XML

• Integration Protocols: EDI (810, 820)

Version Control:

Supporting Tools (Potentially):

• Java, Python, Perl (for integration or scripting)

• SQL Server, Oracle, Snowflake (familiarity as a plus)

• Warehouse Management Systems (WMS)

📝 Enhancement Note: This section is a direct compilation of the technologies explicitly mentioned in the job description, highlighting the specialized and somewhat dated, yet critical, technology stack required for this role.

👥 Team Culture & Values

Operations Values (Inferred based on role and company context):

• Reliability & Stability: Prioritizing the uptime and integrity of a mission-critical ERP system.

• Efficiency & Optimization: Continuously seeking ways to improve system performance and streamline legacy code.

• Collaboration & Communication: Fostering strong working relationships, especially with offshore team members, to ensure project success.

• Problem-Solving & Adaptability: Tackling complex technical challenges and adapting to evolving integration requirements.

• Quality & Precision: Ensuring code is clean, well-documented, and thoroughly tested to minimize business disruption.

Collaboration Style:

• A hybrid approach, combining onsite presence with extensive daily coordination of offshore resources.

• Emphasis on clear, concise technical communication to bridge geographical and potentially cultural gaps.

• Requires proactive engagement with client stakeholders to understand business needs and ensure alignment of technical solutions.

• A culture of knowledge sharing is essential, particularly for documenting and transferring understanding of legacy systems.

📝 Enhancement Note: The values and collaboration style are inferred based on the nature of legacy system maintenance, the client-agency relationship, and the requirement to manage an offshore team.

⚡ Challenges & Growth Opportunities

Challenges:

• Legacy System Complexity: Navigating and maintaining a potentially large and intricate codebase in Informix 4GL, which may lack modern documentation or best practices.

• Bridging Old and New: The inherent difficulty in integrating very old technologies (Informix 4GL, HP-UX) with modern platforms (APIs, Salesforce, e-commerce).

• Offshore Team Management: Effectively coordinating tasks, ensuring quality, and fostering team cohesion with remote team members across different time zones.

• Technical Obsolescence: Working with technologies that are becoming less common, requiring specialized knowledge and potentially limited support resources.

• System Criticality: The pressure of supporting a mission-critical ERP platform where downtime can have significant business consequences.

Learning & Development Opportunities:

• Niche Skill Development: Becoming an expert in Informix 4GL, Genero BDL, and HP-UX, which are valuable in specific industries.

• Integration Architecture: Gaining practical experience in designing and implementing APIs and other integration patterns for ERP systems.

• Cross-Cultural Team Leadership: Developing skills in managing and motivating distributed teams.

• Modernization Strategies: Learning about strategies and techniques for migrating or modernizing legacy applications.

• Supply Chain & ERP Domain Knowledge: Deepening understanding of ERP functionalities and Supply Chain operations through practical application.

📝 Enhancement Note: The challenges are directly tied to the nature of working with legacy technology and distributed teams. Growth opportunities focus on technical specialization and project management skills.

💡 Interview Preparation

Strategy Questions:

• Legacy System Modernization: "Describe a project where you modernized a critical legacy system. What was your approach, what challenges did you face, and what was the outcome?" (Focus on your role in Informix 4GL and API integration).

• Technical Troubleshooting: "Walk me through how you would diagnose and resolve a performance issue in an Informix 4GL application that's impacting order processing. What tools would you use?" (Mention oncheck, set explain, SQL tuning).

• API Integration Design: "If we needed to expose an API to retrieve order status from our Informix ERP, what would be your high-level design considerations, and what technologies would you propose?" (Discuss RESTful principles, data security, and Informix capabilities).

• Team Coordination: "How do you ensure effective collaboration and task completion when working with an offshore development team?" (Prepare examples of communication strategies, task tracking, and quality assurance).

Company & Culture Questions:

• "What interests you about working on a legacy ERP system and specifically with Informix 4GL?" (Show genuine interest in the technical challenge and the impact on operations).

• "How do you approach documentation for complex systems, especially when working with distributed teams?" (Highlight the importance of clear, up-to-date documentation).

Portfolio Presentation Strategy:

• Highlight Specificity: For each project, clearly state the technology stack (Informix 4GL, HP-UX, etc.), your specific role, and the quantifiable business impact.

• Focus on Modernization: Emphasize any projects that involved bridging legacy with modern tech, showcasing your ability to adapt.

• Troubleshooting Showcase: Be ready to detail a complex technical problem you solved, including the diagnostic steps and resolution.

• Process Demonstration: If you have examples of process improvements or workflow designs you implemented, be prepared to explain them.

📝 Enhancement Note: Interview preparation is geared towards assessing technical depth in legacy systems, integration skills, and the ability to manage distributed teams.

📌 Application Steps

To apply for this contract position:

• Submit your application through the SmartRecruiters portal using the provided URL.

• Customize Your Resume: Ensure your resume clearly highlights your experience with Informix 4GL, HP-UX, SQL, API development, and any relevant Supply Chain or ERP domain knowledge. Quantify achievements where possible.

• Prepare Your Portfolio: Gather examples of projects demonstrating your Informix 4GL development, system modernization efforts, API integrations, and troubleshooting experience. Be ready to discuss these in detail.

• Research VTekis Consulting: Understand their business model and how they provide staffing solutions. This shows initiative and helps tailor your responses.

• Practice Technical Questions: Review common Informix 4GL, SQL, and Unix scripting interview questions, and be prepared to discuss your experience with oncheck and set explain.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.

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