{"id":2439037,"url":"https://alion.io/job/pubmatic-principal-software-engineer-cc-linuxunix-cloud","title":"Principal Software Engineer - C/C++ Linux/Unix, Cloud","company":{"id":5112,"name":"PubMatic","domain":"pubmatic.com","url":"https://alion.io/company/pubmatic","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Pune, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":24000,"max_usd":49000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":51},"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Linux","optional":false},{"name":"Unix","optional":false},{"name":"ChatGPT","optional":true},{"name":"Claude","optional":true},{"name":"Copilot","optional":true},{"name":"Cursor","optional":true},{"name":"LLM","optional":true},{"name":"MySQL","optional":true},{"name":"Perl","optional":true},{"name":"Prompt Engineering","optional":true},{"name":"Python","optional":true},{"name":"Windsurf","optional":true}],"status":"live","first_seen_at":"2026-02-18T12:05:21Z","employer_posted_date":"2026-09-17","last_verified_at":"2026-10-13T19:33:21Z","board_verified":true,"closed_at":null,"days_open":237,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":237},"description":"About the Role\nPubMatic is looking for engineers who can design and implement next-generation, highly scalable and low-latency ad server features at scale of 1 trillion+ requests per day in our AD Server. If you get excited building applications and architecture to handle 100's of billions of requests per day, managing millions of requests per second with a creative and fast-paced work environment, competitive pay, great incentives, culture of teamwork, smart and friendly colleagues and plenty of opportunity to grow in your career then you should consider applying for this position.\nWhat You'll Do\nResearch, learn, design and build highly reliable, available and scalable platforms.\nUse best practices for software development and documentation, assure designs meet requirements, and deliver high-quality work.\nDemonstrated ability to self-direct and work independently.\nDemonstrate work ownership and focus to do deliver on time.\nBe the owner of one or more functionality module and point of contact for it.\nPerform code and design reviews for code implemented by peers or as per the code review process.\nWork with teams to achieve desired goals.\nDemonstrate timely and excellent verbal and written communication skills.\nWilling to go the extra-mile to achieve greater results.\nWe'd Love for You to Have\nSeven plus years of development experience in C/C++, Linux/UNIX environment. Good to have experience with GO language.\nProficiency in the implementation of algorithms and the use of advanced data structures to solve problems in computing. A solid knowledge in the principles of computer science is desired.\nGood experience on software design and architecture.\nGood experience in building complex and scalable solutions.\nAbility to find optimal solutions and innovative ideas.\nExcellent problem-solving skills.\nBeing able to use generative AI-based tools and IDE for getting work done.\nUnderstanding of different models at the basic level.\nPrompt engineering basics.\nKnowledge of OS and working experience on system programming (multi-threading, multi-processing, memory management).\nTroubleshoot any issues with existing features, live on production.\nAbility to write clean, modular and loosely coupled code.\nAbility to understand end-to-end product functionality.\nWorking knowledge of scripting Perl/Python/Shell.\nWorking experience in databases, preferably MySQL.\nExcellent interpersonal, written, and verbal communication skills.\nProficiency in AI-assisted coding, automation, prompt engineering, and an understanding of the strengths and limitations of LLM-generated code is a strong plus\nAI-Enabled Engineering Mindset:\nWe value engineers who actively leverage Generative AI tools and IDEs (e.g. GitHub Copilot, ChatGPT, Claude, Cursor, Windsurf etc.) to accelerate development, improve code quality, automate repetitive tasks, and enhance documentation and debugging workflows. Engineers who demonstrate AI-first thinking using these tools to drive faster experimentation, ideation, and technical execution will thrive in our high-scale, performance-critical environment.\nQualifications: \nShould have a bachelor’s degree in engineering (CS / IT) or equivalent degree from well-known Institutes / Universities.\nAdditional Information:\nReturn to Office: PubMatic employees throughout the global have returned to our offices via a hybrid work schedule (3 days “in office” and 2 days “working remotely”) that is intended to maximize collaboration, innovation, and productivity among teams and across functions.\nBenefits: Our benefits package includes the best of what leading organizations provide, such as paternity/maternity leave, healthcare insurance, broadband reimbursement. As well, when we’re back in the office, we all benefit from a kitchen loaded with healthy snacks and drinks and catered lunches and much more!\nDiversity and Inclusion: PubMatic is proud to be an equal opportunity employer; we don’t just value diversity, we promote and celebrate it. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.\nAbout PubMatic\nPubMatic is one of the world’s leading scaled digital advertising platforms, offering more transparent advertising solutions to publishers, media buyers, commerce companies and data owners, allowing them to harness the power and potential of the open internet to drive better business outcomes.\nFounded in 2006 with the vision that data-driven decisioning would be the future of digital advertising, we enable content creators to run a more profitable advertising business, which in turn allows them to invest back into the multi-screen and multi-format content that consumers demand.","description_format":"text","description_chars":4743,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Hybrid work"],"hiring_locations":[{"name":"India","iso":"IN","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Advertising"],"lifecycle":[{"event":"open","at":"2026-10-13T11:34:44Z"}],"visa":[],"liveness":{"score":6,"band":"cold","label":"Long shot","p_open":1,"p_active":0.207,"p_room":0.28,"age_days":237,"expected_fill_days":23,"reasons":["conf:3","win:tail","crowd:"],"computed_at":"2026-10-13T23:07:54Z"},"pay":null,"html_url":"https://alion.io/job/pubmatic-principal-software-engineer-cc-linuxunix-cloud","json_url":"https://alion.io/job/pubmatic-principal-software-engineer-cc-linuxunix-cloud.json","meta":{"generated_at":"2026-10-13T23:07:54Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":35250,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-14T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":5112},"rest":"https://alion.io/mcp/rest/get_company?id=5112"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fpubmatic-principal-software-engineer-cc-linuxunix-cloud"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fpubmatic-principal-software-engineer-cc-linuxunix-cloud"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fpubmatic-principal-software-engineer-cc-linuxunix-cloud"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/pubmatic-principal-software-engineer-cc-linuxunix-cloud\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fpubmatic-principal-software-engineer-cc-linuxunix-cloud"}]}