Electrical Engineer

Saraca Solutions; Navi Mumbai; On-site; INR 400,000 - 650,000; Full time

Job summary

Saraca Solutions in Navi Mumbai is seeking an Electrical Architect to own and develop the drone-level electrical architecture for UAV/aerospace systems, and to define interfaces with avionics, propulsion, battery, and payloads.

You will manage the EWIS, wiring diagrams, ICDs, and power budgets, evaluate redundancy, participate in system reviews, and ensure compliance with safety, weight, and reliability requirements.

Responsibilities

• Own and develop the drone-level electrical architecture for UAV/aerospace systems.
• Develop and maintain the electrical power budget covering operating and flight phases.
• Own the Electrical Wiring Interconnection System (EWIS) and harness architecture.
• Define and review connector/interface management including ICDs, wiring diagrams, and pinouts.
• Incorporate EMI/EMC considerations from the early design stage and support testing/qualification.

Job description

1. Electrical Architecture & System Integration

Own and develop the drone-level electrical architecture for UAV/aerospace systems.

Develop and maintain the overall electrical power tree, including power sources, power distribution, conversion, protection, and loads.

Define electrical interfaces between:

• Avionics
• Flight control systems
• Propulsion systems
• Battery/BMS
• Payloads
• Communication systems
• Navigation systems
• Ground-support equipment
• Other aircraft subsystems

Develop and maintain Interface Control Documents (ICDs), electrical interface specifications, wiring diagrams, and system architecture documents.

Define and review grounding, bonding, shielding, and return-current strategies.

Evaluate electrical architecture for redundancy, fault tolerance, fail-safe operation, and single-point failures.

Participate in system-level design reviews and provide technical recommendations on electrical architecture and integration.

Ensure electrical design decisions are aligned with aircraft-level requirements, safety requirements, performance, weight, reliability, and maintainability.

2. Electrical Power Systems

Develop and maintain the aircraft electrical power budget covering different operating and flight phases.

Define power requirements for avionics, propulsion, payloads, communication systems, sensors, actuators, and other electrical loads.

Analyse steady-state and transient power requirements, including startup current, inrush current, brownout, over-voltage, under-voltage, and load-shedding conditions.

Ensure adequate electrical power supply margins are maintained throughout the aircraft operating envelope.

3. Wiring Harness & EWIS

Own the electrical harness architecture and overall Electrical Wiring Interconnection System (EWIS).

Define wire and cable selection based on:

• Current carrying capacity
• Voltage rating
• Temperature
• Weight
• Environmental conditions
• Voltage drop
• EMI/EMC requirements
• Mechanical requirements

Review harness routing for weight optimisation, bend radius, chafe protection, maintainability, accessibility, and EMI segregation.

Define separation requirements between:

• High-voltage and low-voltage wiring
• Power and signal wiring
• High-current and sensitive signal circuits
• 5RF and electrical systems

Review harness drawings, wiring diagrams, connector pinouts, wire lists, BOMs, and manufacturing documentation.

Support harness build, installation, inspection, continuity testing, and aircraft integration.

Establish and enforce harness workmanship standards based on IPC/WHMA-A-620 and applicable aerospace/military practices.

Support development of standard practices for crimping, soldering, shielding, splicing, lacing, termination, connector assembly, and inspection.

Wire harness design for the following systems:

• Avionics systems
• Electrical systems such as motor and ESC.
• Battery and Battery management systems
• Communication systems

4. Connector & Interface Management

Select appropriate connectors, contacts, backshells, terminals, and accessories based on electrical, mechanical, environmental, and reliability requirements.

Define connector specifications considering:

• Current and voltage rating
• Contact resistance
• Retention force
• Environmental sealing
• Mating cycles
• Vibration
• Temperature
• EMI/EMC requirements

Establish connector standardisation across the aircraft platform wherever practical.

Review connector derating, contact loading, pin allocation, keying, and mating requirements.

Maintain connector pinout and interface documentation and ensure configuration consistency between design, manufacturing, and aircraft installation.

5. EMI/EMC Engineering

Incorporate EMI/EMC considerations from the early design stage.

Define appropriate practices for:

• Cable segregation
• Shielding
• Grounding
• Bonding
• Filtering
• Termination
• Cable routing
• RF isolation

Identify potential EMI/EMC coupling paths between propulsion, power electronics, avionics, communication, and sensor systems.

Support troubleshooting of EMI/EMC issues during laboratory, ground, and flight testing.

Support EMI/EMC qualification activities in accordance with applicable standards such as MIL-STD-461 and MIL-STD-464.

Support environmental qualification activities in accordance with applicable requirements such as MIL-STD-810.

6. Electrical Testing & Verification

Develop electrical integration and verification plans based on system requirements.

Lead and participate in:

• Continuity testing
• Insulation resistance testing
• Dielectric withstand/Hi-Pot testing where applicable
• Ground bonding/continuity testing
• Power-on testing
• Load testing
• Communication interface testing

Develop test procedures, test checklists, test reports, and verification records.

Review test results and ensure requirements are objectively verified.

7. Documentation & Configuration Management

Prepare and maintain:

• Electrical architecture documents
• Electrical schematics
• Wiring diagrams
• Harness drawings
• ICDs
• Electrical BOMs
• Wire lists
• Connector pinout documents
• Power budgets
• Electrical interface specifications
• Test procedures
• Test reports
• Troubleshooting reports

Ensure engineering documentation is properly controlled and updated through the product lifecycle.

Work closely with configuration management/PLM teams to maintain design baselines and engineering changes.