Software OT Developer

Merck Life Science; Bengaluru; On-site; INR 2,500,000 - 4,200,000; Full time

Job summary

Merck Life Science in Bengaluru seeks an experienced Industrial Control Systems engineer to design, implement, and optimize automation solutions across R&D and production environments. You will work with PLC programming, SCADA/HMI development, and integration of DCS workflows to support advanced manufacturing.

The role requires strong Siemens TIA Portal/WinCC experience, familiarity with modern industrial protocols, RESTful APIs, and a hands-on mindset for testing, debugging, and delivering

Qualifications

• 8+ years hands-on experience developing Industrial Control Systems and OT technologies in production or R&D environments.
• Proven track record in PLC programming and SCADA/HMI development specifically within R&D or laboratory automation contexts.
• Demonstrated expertise in commissioning and troubleshooting physical automation systems.
• Strong hands-on experience with Siemens TIA Portal and Siemens WinCC.
• Experience implementing Module Type Package (MTP) standards and RESTful API/WebSocket solutions for industrial applications.
• Familiarity with CI/CD pipelines, GitHub, and Infrastructure as Code tools (Terraform/Ansible).
• Experience with virtualization (Docker) and monitoring/logging tools (Prometheus).
• Knowledge of ISA-88/ISA-95/ISA-99 standards and GAMP 5/FDA regulated software lifecycle practices.
• Proven ability to work in Agile/Nexus environments and to explore AI/ML in SDLC workflows.

Skills

PLC programming

SCADA/HMI development

Agile methodologies

RESTful APIs

WebSocket

Software architecture

Education

Bachelor's degree in Engineering, Instrumentation & Control, Electronics, Electrical, Automation

Tools

Siemens TIA Portal

Siemens WinCC

Rockwell Studio

CODESYS

OPC DA/UA

MODBUS

Ethernet/IP

Profinet

Delta-V

Siemens PCS

MS SQL Server

.NET framework

Docker

GitHub

Terraform

Ansible

Prometheus

RabbitMQ

Java

Job description

Work Your Magic with us! Ready to explore, break barriers, and discover more? We know you've got big plans - so do we! Our colleagues across the globe love innovating with science and technology to enrich people's lives with our solutions in Healthcare, Life Science, and Electronics. Together, we dream big and are passionate about caring for our rich mix of people, customers, patients, and planet. That's why we are always looking for curious minds that see themselves imagining the unimageable with us.

Your Role

Technical Skills

• Expert proficiency in structured programming (STL/FBD/Ladder) and object-oriented programming principles
• Advanced expertise with at least two industrial PLC development platform: Siemens TIA Portal, Rockwell Studio or CODESYS
• Strong experience with SCADA/HMI platforms: Siemens WinCC, FactoryTalk View, Ignition, or iFix
• Hands-on knowledge of industrial communication protocols: OPC DA/UA, MODBUS, Ethernet/IP, and Profinet
• Practical experience with Distributed Control Systems (DCS) solutions such as Delta-V or Siemens PCS
• Working knowledge of MS SQL Server and .NET framework
• Demonstrated ability to design intuitive user interfaces and create rapid prototypes
• Strong understanding of electrical drawings, P&ID (Piping & Instrumentation Diagrams), and I/O lists for system design and integration
• Ability to interpret and work with engineering documentation including electrical schematics, instrumentation diagrams, and control logic specifications

Who You Are

Education

• Bachelor's degree in Engineering, Instrumentation & Control, Electronics, Electrical ,Automation, or a related technical field

Experience

• 8+ years of hands-on experience developing Industrial Control Systems and OT technologies in production or R&D environments
• Proven track record in PLC programming and SCADA/HMI development specifically within R&D or laboratory automation contexts. Demonstrated expertise in commissioning and troubleshooting physical automation systems

Having

• Strong hands-on experience with Siemens TIA Portal and Siemens WinCC
• Practical experience implementing Module Type Package (MTP) standards. Experience developing RESTful APIs and WebSocket solutions for industrial applications
• Familiarity with automated testing frameworks and version control systems (GitHub). Knowledge of Infrastructure as Code tools: Terraform or Ansible. Experience with CI/CD pipelines optimized for industrial automation systems
• Hands-on experience with virtualization technologies: Docker and containerization. Experience with enterprise monitoring and logging tools such as Prometheus
• Familiarity with RabbitMQ, Java, or other modern backend technologies. Knowledge of ISA-88, ISA-95, or ISA-99 standards. Understanding of GAMP 5, FDA guidelines, and regulated software development lifecycle practices
• Proven experience working in Agile methodologies and Nexus framework environments. Exposure to AI/ML solutions and ability to incorporate them into SDLC workflows

What we offer:

We are curious minds that come from a broad range of backgrounds, perspectives, and life experiences. We celebrate all dimensions of diversity and believe that it drives excellence and innovation, strengthening our ability to lead in science and technology. We are committed to creating access and opportunities for all to develop and grow at your own pace. Join us in building a culture of inclusion and belonging that impacts millions and empowers everyone to work their magic and champion human progress!