Junior Engineer

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Job Type: Permanent

Location: Warrington, United Kingdom

Mode of Working: Office-based

Working Hours: 40 hours per week (Full-time)

Are you looking to build your career in industrial automation and control systems engineering?

We have an exciting opportunity for you - Junior Engineer!

Careers at TCS: It Means More

TCS is a purpose-led transformation company, built on belief. We do not just help businesses transform through technology. We support them in making a meaningful difference to the people and communities they serve. Our clients include some of the biggest brands in the UK and worldwide. At TCS, it means more to make an impact that matters through challenging projects which demand ambitious innovation and thought leadership.

• Gain exposure to a variety of engineering projects and one of TCS’s global innovation labs.
• Access a wide range of TCS employee benefits through the Perks at Work programme.
• Build a long-term career with opportunities for growth, learning, and development.

The Role

As a Junior Engineer, you will support the development, testing, and commissioning of PLC, HMI, and SCADA software solutions for water and wastewater treatment plants operated by United Utilities. Working within industrial automation environments, you will contribute to the delivery of control system solutions across treatment works and process plants, while gaining hands‑on experience in software development, testing, commissioning, and customer engagement activities.

Key Responsibilities

• Develop PLC, HMI, and SCADA software solutions using Siemens and Allen Bradley platforms.
• Support the creation of software documentation, including Software Design Specifications and Functional Design Specifications.
• Participate in Factory Acceptance Testing (FAT) activities and support customer demonstrations.
• Commission tested software at water and wastewater treatment plant sites.
• Support customer sign‑off activities and maintain system documentation and backups.
• Assist with service support activities, troubleshooting, and device configuration tasks.
• Work closely with project teams to ensure successful delivery of automation solutions.
• Follow engineering and quality standards throughout the project lifecycle.

Your Profile

Essential skills/knowledge/experience

• Understanding of PLC, HMI, and SCADA development using Siemens and Allen Bradley platforms.
• Understanding of industrial automation documentation and engineering deliverables.
• Basic understanding of Operational Technology (OT) environments.
• Basic understanding of control systems, instrumentation, and electrical circuits.
• Understanding of industrial historians and data collection systems.
• Good analytical and problem‑solving skills.
• Willingness to travel to customer sites for testing and commissioning activities.
• Strong communication and teamwork skills.
• Full UK driving licence or willingness to obtain one, with ability to travel to customer sites as required.
• Good verbal communication skills with the ability to interact effectively with customers and multicultural teams.
• Interest in industrial automation, water industry operations, and control systems engineering.

TCS is consistently voted a Top Employer in the UK and globally. Our competitive salary packages feature pension, health care, life assurance, laptop, phone, access to extensive training resources and discounts within the larger Tata network. We offer health & wellness initiatives and sports events; we are the proud sponsor of the London Marathon.

Diversity, Inclusion and Wellbeing

Tata Consultancy Services UK&I is committed to meeting the accessibility needs of all individuals in accordance with the UK Equality Act 2010 and the UK Human Rights Act 1998.

We welcome and embrace diversity in race, nationality, ethnicity, disability, neurodiversity, gender identity, age, physical ability, gender reassignment, sexual orientation. We are a disability inclusive employer and encourage disabled people to apply for this role. As a Disability Confident Employer, we offer an interview to applicants with disabilities or long‑term conditions who meet the minimum criteria for the role. Please email us at if you would like to opt in.

If you are an applicant who needs any adjustments to the application process or interview, please contact us at with the subject line: "Adjustment Request" or call TCS London Office / to request an adjustment. We welcome requests prior to you completing the application and at any stage of the recruitment process.

Beware of Fraudulent offers

This is to notify you that TCS does not ask for any sort of payment or security deposit from candidates at any stage of the recruitment process. The firm never sends out job offers from free internet email services like Gmail, Yahoo Mail, and so on. TCS has not authorised any third‑party company to collect money on their behalf. As a vigilant job seeker, beware of fraudulent recruitment activity and protect your interests! You can write to to report any fraudulent activity.

Due to the high volume of applications, we will be unable to contact each applicant individually on the status of their application. If you have not received a direct response within 30 days, then it should be deemed unsuccessful on this occasion.