Diagnostics Engineer

Aftermarket Diagnostics Engineer At Tata Technologies, we make product development dreams a reality by designing, engineering, and validating the products of tomorrow for the world’s leading manufacturers. Role OverviewWe are seeking an experienced Aftermarket Diagnostics Engineer to develop and verify workshop-ready diagnostic fault-tracing methods for vehicle repair and service operations. The role involves analysis, development, documentation, and verification of aftermarket diagnostic content in collaboration with cross-functional engineering, digital, and service teams. Key ResponsibilitiesMap vehicle functions to relevant aftermarket customer functions.Develop FMEA-based diagnostic content for aftermarket service applications.Create and maintain signal information for diagnostic systems.Prepare Diagnostic Trouble Code (DTC) information for Electronic Control Units (ECUs).Develop component tests and manage component variants.Create parameter and activation descriptions for ECUs.Develop diagnostic sequences, service functions, and pre-delivery service procedures.Prepare component specifications and technical inspection documentation.Define customer symptom codes and supporting diagnostic content.Analyze engineering inputs including:System and software specificationsWiring diagramsNetwork topologyConfiguration and calibration dataFunction descriptionsComponent informationTechnical specificationsPlan and manage assigned features, objectives, deliverables, dependencies, and backlog activities.Support regular synchronization, planning, and refinement meetings.Coordinate verification activities and ensure availability of required test objects.Escalate missing, incomplete, or unclear technical information when required.Perform end-to-end validation of diagnostic methods for workshop and service environments. Project DeliverablesTechnical specification reviews.Prototype verification support and test equipment validation.Vehicle function mapping and diagnostic content creation.DTC definitions, parameters, and activation information.FMEA content, component tests, and diagnostic sequences.Signal information and default diagnostic definitions.Service-function and pre-delivery service scripts.Customer symptom code definitions.End-to-end testing, validation, and verification reports. Required QualificationsBachelor's degree in Engineering or equivalent experience.Proven experience within the automotive industry, preferably in vehicle diagnostics, fault tracing, or aftermarket services.Ability to analyze: DTCs, Signals, Customer symptoms, Vehicle functions, Components, Wiring diagrams, Network topologiesStrong understanding of automotive diagnostic standards.Good knowledge of UDS (ISO 14229), including: Diagnostic sessions, DTCs, DIDs, Routines, I/O controls, Parameters and activationsExperience working with in-vehicle digital systems and ECUs.Understanding of CAN, LIN, and automotive communication networks.Basic understanding of vehicle configuration management, ECU variants, and applicability handling.Experience developing: Diagnostic sequences, Component tests, Fault-tracing methodsService diagnosticsExperience with vehicle, bench, prototype, or diagnostic-system verification.Knowledge of scripting tools, logic-based development methods, or high-level programming languages.Ability to transform engineering data into structured service and diagnostic content.Fluent English communication skills.Strong teamwork and stakeholder management capabilities. Technical SkillsExperience with automotive diagnostic development environments, service-authoring platforms, fault analysis tools, and diagnostic verification tools is highly desirable.Preferred knowledge includes:Automotive diagnostic authoring toolsService and repair information systemsECU diagnostics and communication protocolsFault-tracing and root-cause analysis toolsDiagnostic content management systemsUDS diagnostics and related standards Work Practices Work within a feature-based development and delivery model.Break down assigned scope into deliverable-driven development plans.Maintain backlog activities and proactively manage dependencies.Collaborate with engineering, service, digital, and external stakeholders.Operate effectively in environments where technical inputs may evolve during development.Support verification activities and occasional travel as required. Desired ProfileThe successful candidate will demonstrate:End-to-end ownership from analysis through verification.Strong technical accuracy and attention to detail.Ability to translate engineering requirements into practical workshop diagnostic solutions.Effective stakeholder communication and dependency management.Proactive problem-solving and escalation skills.Comfort working across multiple teams and geographically distributed organizations. If you are passionate about mechatronics, automotive electronics, and leading high-impact engineering projects, we would love to hear from you. Tata Technologies: Engineering a better world.