Job Description
Are you an aspiring systems engineer looking for a highly impactful software development summer internship that truly challenges you to innovate? Arrcus, a global leader in AI-native networking software, is actively searching for brilliant minds to join our elite team for the upcoming Software Engineering Internship 2026 Bangalore program. In this role, you will dive deep into C programming, intricate data structures, and advanced network protocols to build the internet architecture of tomorrow. This Arrcus Software Engineering Internship offers an unparalleled opportunity to work alongside world-class technologists who are fundamentally reshaping distributed AI networking. Bring your passion for deep systems engineering and help us build scalable, high-performance routing and switching platforms from the ground up.
Role Overview
-
Be a core participant in the Arrcus Software Engineering Internship, contributing directly to the next-generation ArcOS™ network operating system.
-
Collaborate closely with seasoned industry experts during this intensive 10-12 week software development summer internship.
-
Focus heavily on low-level systems programming, developing features that power massively scalable IP Clos networks and multi-cloud architectures.
-
Work within a fast-paced, highly dynamic Agile environment in a vibrant tech hub during your Software Engineering Internship 2026 Bangalore.
-
Gain exclusive, hands-on exposure to distributed AI networking, cloud-native routing security, and internet-scale infrastructure.
Key Responsibilities
-
Write, test, and relentlessly optimize highly efficient C code for advanced networking protocols and switching platforms.
-
Debug complex, system-level software issues to ensure the uncompromised reliability and extreme performance of Arrcus’s core routing technologies.
-
Design and implement robust data structures and algorithms that scale seamlessly across highly distributed multi-cloud environments.
-
Participate in rigorous technical code reviews and actively contribute to overarching architecture discussions during your software development summer internship.
-
Develop comprehensive unit and integration tests to maintain strict quality and operational standards for all newly deployed features.
Qualifications
-
Currently pursuing a B.E., B.Tech, M.S., or M.Tech degree in Computer Science, Software Engineering, Electronics, or closely related technical fields.
-
An expected graduation timeline in the year 2027, making you a perfect candidate for the Software Engineering Internship 2026 Bangalore cohort.
-
A consistently strong academic record demonstrating a profound, theoretical understanding of core computer science fundamentals.
-
Full availability to commit to a standard 40-hour work week schedule for 10-12 weeks during the summer of 2026.
Requirements
-
Core Programming: Exceptional proficiency and hands-on coding experience in C programming is strictly required for this Arrcus Software Engineering Internship.
-
Computer Science Fundamentals: Deep conceptual understanding of advanced data structures, algorithmic complexities, and logical problem-solving.
-
Networking Knowledge: Strong foundational knowledge of fundamental networking concepts, the OSI model, TCP/IP stacks, and routing/switching protocols is highly desirable.
-
Operating Systems Concepts: Solid grasp of OS principles, particularly Linux internals, memory management, process scheduling, and multi-threading.
-
Behavioral Traits: A proactive, self-starter mindset with the innate ability to thrive in a fast-paced, highly collaborative, and technically demanding startup environment.
Job Benefits
-
A highly competitive intern stipend tailored specifically to attract top-tier engineering talent in the Bangalore tech market.
-
Direct, personalized mentorship from veteran industry leaders who have engineered some of the world’s largest and most successful networking products.
-
Real-world, tangible, and hands-on experience working directly on cutting-edge AI-native networking and distributed computing systems.
-
A highly collaborative, inclusive, and highly flexible work culture that inherently rewards creativity, independent thinking, and risk-taking.
-
A direct pathway and strong potential for conversion to a full-time Software Development Engineer role upon successful graduation.
FAQs
Q: What programming language is primarily used and evaluated in this internship? A: The primary focus of the Arrcus Software Engineering Internship is on low-level systems C programming. Candidates must have an exceptionally strong command of C and complex data structures to succeed in the interview process.
Q: Who is eligible for the Software Engineering Internship 2026 Bangalore? A: Pre-final year students currently enrolled in a B.E., B.Tech, M.S., or M.Tech program in Computer Science (or a related engineering field) who will be fully available for a software development summer internship in 2026 are highly encouraged to apply.
Q: Is this a remote or in-office internship program? A: This internship is officially based out of the Arrcus engineering development center in Bangalore. It operates in an environment that heavily favors in-person collaboration, whiteboard architecture sessions, and direct mentorship.
Q: What makes Arrcus unique in the broader networking industry? A: Arrcus is revolutionizing the enterprise networking sector with ArcOS™, an independent, Linux-based 64-bit network operating system, and ACE-AI, a globally distributed AI networking platform. You will be working at the absolute cutting edge of software-defined network infrastructure.
About Arrcus
Arrcus: Scaling the Network Fabric for the AI and Hyperscale Era Headquartered in San Jose, California, Arrcus, Inc. is a pioneering, high-growth technology leader specializing in hyperscale networking software. Founded by industry veterans Keyur Patel and Derek Yeung, and led by CEO Shekar Ayyar, the company's core mission is to democratize networking. By replacing rigid, monolithic, and proprietary hardware-locked systems...
View Company Profile →Top Interview Questions
Prepare with commonly asked questions for this role
Memory leaks occur when dynamically allocated memory (via malloc or calloc) is not properly released using free(). To rigorously prevent this, every memory allocation must have a guaranteed corresponding deallocation path, particularly within error-handling and exception routines. In professional systems programming, I would rely heavily on diagnostic tools like Valgrind or AddressSanitizer (ASan) during the testing and CI/CD phases. These tools accurately track memory allocations and report unfreed blocks, invalid memory accesses, and buffer overflows, which are absolutely critical to avoid in an always-on network operating system.
A mutex (mutual exclusion object) is a strict locking mechanism used to ensure that only one thread can access a critical section of code or shared resource at a given time; crucially, the specific thread that locks the mutex is the only one permitted to unlock it. A semaphore, however, is a signaling mechanism that fundamentally maintains a counter. It allows multiple threads (up to a mathematically specified limit) to concurrently access a pool of identical resources. Unlike a mutex, a semaphore can be legitimately signaled (incremented) by a thread completely different from the one that initially waited on (decremented) it.
A Hash Table seamlessly maps keys to values by utilizing a hash function, which computes a mathematical index into an underlying array of buckets. When two entirely distinct keys generate the exact same hash index, a collision inevitably occurs. In C, collisions are most commonly managed using either Separate Chaining (where each array bucket contains a linked list of entries) or Open Addressing (where the algorithm dynamically probes for the next available empty slot in the array). For high-performance networking software, the optimal choice depends heavily on the expected load factor and cache locality; Open Addressing often yields vastly superior CPU cache performance.
The OSI model is a standardized conceptual framework consisting of seven distinct layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application. Switching primarily occurs at Layer 2 (the Data Link Layer), utilizing physical MAC addresses to rapidly forward frames within the exact same local area network segment. Conversely, Routing occurs at Layer 3 (the Network Layer), utilizing logical IP addresses to intelligently forward data packets across completely different network boundaries, determining the single most optimal path based on advanced routing protocols such as BGP, OSPF, or IS-IS.
A function pointer uniquely stores the exact memory address of executable code rather than storing standard data variables. In high-performance networking software architectures, function pointers are heavily utilized to implement highly efficient callback mechanisms, complex finite state machines, and asynchronous event-driven architectures. For example, when a specific type of network data packet dynamically arrives, the system can quickly utilize an array of function pointers (indexed by the packet header type) to instantaneously dispatch the packet to the correct handler function, completely avoiding lengthy, CPU-intensive switch or if-else conditional chains.