Senior Java Developer - Ignition SDK & Control Systems

Job Requirements

Key Responsibilities

• Analyze, reverse-engineer, and document an internally developed Sequential Control System toolkit based on 

  Ignition SDK and

  Java

  .
• Sustain, enhance, and develop the toolkit codebase with minimal documentation and limited KT support from client.
• Identify code architecture, functionality, and integration with database and UI components.
• Work closely with client engineers to validate analysis findings and propose sustainable solutions.
• Provide long-term development, testing, and database management support for the ARTIE toolkit.
• Collaborate with controls engineers and other developers supporting Honeywell SCM and other toolkits.

Required Skills & Experience

Core

• 8+ years of

  Java

  development experience

  with strong understanding of OOP, threading, memory management, and exception handling.

• 3+ years of experience with Ignition SDK or Inductive Automations Ignition platform

  (Designer, Gateway, Tags, Perspective/Vision modules).
• Strong 

  Python scripting

  experience, especially in integrating with Ignition tags, SFCs, and display elements.
• Experience in 

  reverse engineering

  legacy applications

  and documenting architecture and design artifacts.
• Hands-on experience with 

  SQL

  databases

  – writing queries, optimizing data access, and schema understanding.
• Familiarity with 

  Git

  or other

  version control systems

  .

Ignition Platform Specific Skills:

• Ignition Vision HMI development and tag structures (UDTs, SFCs).
• Understanding of Ignition Designer layer and interaction with UI elements.
• Experience with 

  integration of Ignition applications with

  control systems

  (DCS/SCADA/PLC)

  .

Work Experience

Good to Have

• Prior experience with 

  Honeywell SCM

  , UCM, RCM, or similar sequential control systems.
• Experience with 

  Honeywell Experion systems

  , CAB (Custom Algorithm Blocks), control logic, and HMI development.
• Understanding of Purdue Enterprise Reference Architecture and system interactions between L2 and L4.
• Exposure to 

  industrial process automation

  (chemical plants, distillation units, reactors).
• Familiarity with 

  technical

  document management

  and ticket-based sustainment workflows.

Behavioral & Soft Skills

• Highly resourceful and self-motivated with minimal supervision.
• Ownership mindset to proactively drive sustainment and development items.
• Strong written communication skills for documenting technical architecture and sustaining knowledge base.
• Responsive to sustainment ticket resolution with a customer-first approach.