Secondary Engineering

Hitachi; Chennai District; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

Hitachi Energy Technology Services Private Limited in Chennai seeks an experienced engineer to lead electrical design for GIS/AIS substations. You will develop protection SLDs, schematics, BOMs, and RFQs, while coordinating with vendors, tendering, and project teams.

The role requires ensuring design quality, safety compliance, and timely delivery throughout project lifecycles. The candidate will manage multiple substation projects, perform technical risk assessments, and support site activities

Qualifications

• Bachelors in Electrical & Electronics Engineering or equivalent.
• Experience with GIS/AIS substations and protection systems is required.
• Ability to review tender specifications and prepare BOMs and SLDs.

Responsibilities

• Act as design authority for a discipline on GIS/AIS substation projects.
• Prepare protection SLD, Schematics, BOMs, and RFQs from customer specifications.
• Coordinate with multiple teams including vendors, project managers, and site teams.
• Ensure on-time delivery of design deliverables and risk assessments against project schedules.

Skills

CAD tools

E3 (optional)

AIS/GIS substations

PQ solutions (STATCOM/SVC)

Tender engineering

Project engineering

Substation interface engineering

IEEE/IEC standards

Protection SLD & relays

LVAC & LVDC concepts

Education

Bachelors in Electrical & Electronics Engineering

Tools

AutoCAD

E3

Job description

Location:

Chennai, Tamil Nadu, India

Job ID:

R0139124

Date Posted:

2026-10-06

Company Name:

HITACHI ENERGY TECHNOLOGY SERVICES PRIVATE LIMITED

Profession (Job Category):

Engineering & Science

Job Schedule:

Full time

Remote:

No

Job Description:

Main Accountabilities:

Design authority for an engineering discipline with low to medium complexity. Complete assignments on small projects or portions of larger projects, cost-effectively and in accordance with contract specifications, quality standards and safety requirements. Based on technical specification from end customers and inputs from OU Engineering team, prepare protection principle SLD, Schematics, Bill of materials, RFQs, vetting of vendor offers, Engineering hours estimation, visit to project sites, technical risk assessment and opportunity evaluation etc.,

Coordinate with Engineering Leads, Vendors, Tendering team, Project managers, Site execution team, SCM, Secondary and civil / steel design functions, consultants, end customers etc. and provide required support in each Project / Tender.

The candidate should have experience managing at least two (2) GIS or AIS substation projects across the full project lifecycle.

Specific Knowledge & Skillsets

• Proficiency in CAD design tools and E3 (optional).
• AIS/GIS substation equipment, selection criteria, ratings, and their operational purpose (66kV & above).
• Understanding PQ solutions (STATCOM/SVC) and special substations (Mobile SS/Prefab) – desirable
• Tender Engineering - Tender Spec review, analyzing Client requirements, clarifications, RFQ preparations, Tender deliverables including finalization of layout and SLD interpreting tender inputs.
• Project Engineering – Understand, interpret the project scope & customer specifications, Clarifications, deviations, identify risks, Quality process, etc.,
• Substation Interface Engineering - Cross‑functional interfaces during design and execution phases.
• Standards - IEC, IEEE standards related to secondary engineering, clauses and applications, reflects where necessary, negotiate client or vendor constructively.
• Protection SLD of various bus configurations, Key protection functions, protection zones, blind spots, etc.,
• Functional Design Standards/Descriptions
• Signal list (SCMS, FMS, etc.,), Protection Trip matrix, Logics & Interlocks.
• Selection of Relay ordering information from different IED vendors, identify protection requirements from ordering code, study and change wherever necessary.
• Engineering CRP and secondary cubicle layouts.
• LVAC & DC system distribution philosophy.
• LVAC & LVDC power cable sizing and selection.
• Selection of CT / VT parameters.
• undefined Activities Involved Key activities include:Protection SLD showing IEDs with protection and metering functions, key power system parameters, protection zones understanding Client requirements.Understand, relate, review Vendor document / drawings technical requirements, co‑ordinate, offer solutions (Control & Relay panels, LCC, Tx MB, RTCC, SCMS, Metering, FMS & LV Auxiliary System).Read, prepare / review schematic diagrams and interface Control & Relay panel schemes with SCADA/SAS, Telecom, Metering, FMS, PQMS, WAMS & LV Auxiliary System.Prepare / Review SAS System architecture in correlation with station communication requirements of CRP, metering, FMS, etc.,Prepare Cable Schedule/Termination schedule, cable drum length estimation, detailed BOM & Wiring/Termination diagrams.Design Auxiliary Power System - LVAC & DC load requirements, LV board SLD and panel requirements, Aux. Transformer, Battery & Charger Sizing & CB selectivity study.CT/VT Sizing/adequacy check calculation, interpret and edit / customize parameters suitable for the system & Relay configuration support.Technical data sheets verification of equipment’s. Knowledge of equipment, such as circuit breakers, disconnectors, earthing switches, instrument transformers, power transformers, etc.,Ensure Ontime delivery of design deliverables & to be vigilant on project schedule impacts.Responsible for obtaining customer approvalsTechnical risk and opportunity assessment and validation.Take part in customer meetings / site visits for tender/project clarifications.Support and act as interface engineer during erection & commissioning.Estimation of engineering effort for each project for costing at tender stage.Value Engineering - Innovative ideas to reduce Engineering effort.Plan, implement, review and continuously improve quality system.Ensure the Safety through design principles which meant for complete project lifecycle. Soft skills: An individual contributor leverages extensive practical experience in a specialized field to undertake complex projects or address challenging issues, frequently applying independent thought to question conventional approaches.Sharing prior project experience with team members to enhance the quality of deliverables.Proactive cross functional approach to ensure in line with project timelines.Works independently, applying established standardsConversational Fluency in English, good communication skillsDynamic and Proactive, willing to grow in the organizationTeam player, ready to play the role across the different countries. High level of ownership.
• Qualifications & Experience Bachelors Engineering in (Electrical & Electronics)6-10 years exp

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Background Screening and Security Checks

As part of the hiring process, Hitachi Energy conducts pre-employment background checks that may include verification of employment history, education, criminal records, and other relevant information, in accordance with applicable laws.

For certain roles—particularly those involving access to sensitive information, financial responsibilities, client data, regulated environments, or security-sensitive functions—additional or more comprehensive background or security screenings may be required. These may include, but are not limited to, enhanced criminal history checks, credit history reviews (where legally permissible), sanctions screening, or other due diligence measures aligned with the responsibilities of the position.

The scope and depth of any background or security review will be determined based on the nature of the role and business necessity, and will always be conducted in compliance with applicable federal, state, and local laws. Candidates will be notified and, where required, asked to provide consent prior to the initiation of any such checks.