N #2490
Applications open
Full-Time Job
Flight management system
Larsen & Toubro (L&T)
About the role
Avionics Software Developer FMS / Display
Job Summary
We are looking for an Avionics Software Developer with hands-on experience in developing embedded software for safety-critical avionics systems. The candidate should have strong expertise in Embedded C/C++ , DO-178B/C , software development lifecycle activities, and avionics applications such as FMS, Display Systems, Flight Control Systems, or Data Link . Exp- 3+ years Location; Bangalore /
Hyderabad
Key Responsibilities
- Design, develop, integrate, and test avionics embedded software .
- Develop software using Embedded C and/or C++ .
- Work on avionics applications including: FMS Flight Management System Display / Cockpit Display Systems FCS Flight Control System DL Data Link / Datalink
- Perform software lifecycle activities in accordance with DO-178B / DO-178C .
- Support software requirements, design, coding, unit testing, integration, verification, and certification activities.
- Prepare/review software documentation and certification artifacts.
- Follow configuration management and version-control processes.
- Work with DevOps / CI-CD practices where applicable.
- Support avionics software certification and compliance activities.
- Mandatory Skills Avionics Software Development DO-178B and/or DO-178C Embedded C and/or C++ Experience in at least one avionics domain: FMS / Display / FCS / Data Link Embedded software development, integration, or verification experience
Preferred Skills
Avionics software certification experience DevOps / CI-CD exposure Git / GitLab / Jenkins Configuration Management Software verification and validation Safety-critical embedded systems experience Interested candidates can directly share the CV @anushia.g1@ltts.com
Eligibility & process
Who can apply
Experience: 4-9 Yrs. Open to matching qualifications.
Skills & stack
Selection process
- Online Assessment / Technical Interview Rounds / HR Review
Prep kit
20 resourcesStudy material 4
Aptitude Practice Questions & Mock Tests
Curated logical, quantitative, and verbal reasoning problems for the initial online screening round.
Company-Specific Interview Preparation Corner
Detailed interview experiences, exam formats, and previous test questions for Larsen & Toubro (L&T) and tech roles.
Technical Placement Question Bank
High-yield coding cheat sheets, core CS fundamentals (OOP, DBMS, OS, Networks), and rapid revision guides.
Algorithm, DSA & Live Code Debugger Practice
Hands-on problem sets to improve coding speed and step-by-step memory debugging.
Company-specific guides 4
APTITUDE & LOGIC
Aptitude Practice Questions & Online Mock Tests
Curated logical, quantitative, and verbal reasoning problems to sharpen reasoning skills required for the initial screening test.
COMPANY GUIDE
Larsen & Toubro (L&T) Interview Preparation Corner
Comprehensive guide covering typical interview formats, common questions, and preparation tips for Larsen & Toubro (L&T) and off-campus tech roles.
MOCK TESTS & PAPERS
Comprehensive Interview Prep Resources & Syllabus
Collection of previous year questions, company-specific test patterns, and interview experiences for technical and HR rounds.
CODING PRACTICE
Algorithm and Data Structure Problem Set
Practice problems to improve coding proficiency and algorithm problem-solving speed for technical rounds.
Likely coding questions 4
Round-wise strategy 4
Round 1: Online Assessment (OA)
Aptitude, Quantitative Logic & 2 Coding Problems
Focus on accuracy and speed. Practice arrays, strings, and standard arithmetic puzzles.
Round 2: Technical Interview 1
Core Tech Stack (FMS, Flight, Avionics, Fm, Flight Control Systems, Control System, Git) & Live Code Tracing
Explain your thought process aloud. Analyze time & space complexities before coding.
Round 3: System Design & Problem Solving
Database Schemas, APIs & Architecture Basics
Clarify edge cases, diagram schemas cleanly, and discuss scalability trade-offs.
Round 4: HR & Cultural Fit Discussion
Larsen & Toubro (L&T) Core Values, Learning Agility & Offer Terms
Demonstrate passion, strong communication, and readiness for full-time collaboration.
Technical questions 5
Explain OOP (Object-Oriented Programming) principles with real-world examples in FMS. Answer
Model answer: 1. Encapsulation (data hiding via private fields/getters). 2. Abstraction (hiding implementation complexity). 3. Inheritance (code reusability). 4. Polymorphism (method overriding/overloading).
What is the time and space complexity of QuickSort vs MergeSort? Answer
Model answer: QuickSort: Average O(N log N) time, O(log N) space. Worst O(N^2). MergeSort: Guaranteed O(N log N) time, but requires O(N) auxiliary space.
Explain the difference between SQL Indexing (B-Tree vs Hash) and when not to use an index. Answer
Model answer: Indexes speed up SELECT queries via B-Trees. However, they slow down INSERT, UPDATE, and DELETE operations because indexes must be updated on disk. Avoid on low-cardinality columns (e.g., boolean flags).
What happens under the hood when you enter a URL in a browser? Answer
Model answer: 1. DNS lookup (resolves IP). 2. TCP 3-way handshake (SYN, SYN-ACK, ACK). 3. TLS negotiation for HTTPS. 4. HTTP GET request sent. 5. Server responds with HTML/CSS/JS. 6. Browser renders DOM & CSSOM tree.
What is the difference between REST and GraphQL APIs? Answer
Model answer: REST uses multiple fixed endpoints with possible over/under-fetching. GraphQL uses a single endpoint allowing clients to query exact fields in a single request.
Behavioural & HR questions 3
Why do you want to join Larsen & Toubro (L&T) as a Flight management system?
Highlight Larsen & Toubro (L&T)'s market reputation, recent tech innovations, and how your skills in FMS directly solve their team's objectives.
Highlight Larsen & Toubro (L&T)'s market reputation, recent tech innovations, and how your skills in FMS directly solve their team's objectives.
Describe a challenging bug or academic project roadblock and how you resolved it.
Use the STAR method: Situation (project context), Task (what needed solving), Action (specific tools/logic applied), Result (quantifiable positive outcome).
Use the STAR method: Situation (project context), Task (what needed solving), Action (specific tools/logic applied), Result (quantifiable positive outcome).
How do you handle strict deadlines or sudden scope changes?
Explain your prioritization strategy, proactive communication with mentors/peers, and agile mindset.
Explain your prioritization strategy, proactive communication with mentors/peers, and agile mindset.
Competitive Package (Best in Industry)
Bengaluru, India
Experience: 4-9 Yrs. Open to matching qua…
