{"id":1189356,"url":"https://alion.io/job/alcon-sr-principal-engineer","title":"Sr. Principal Engineer","company":{"id":5809,"name":"Alcon","domain":"alcon.com","url":"https://alion.io/company/alcon","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":93,"open_postings":34,"ghost_share":0,"stale_share":0.265,"repost_share":0,"time_to_fill_p50_days":25,"computed_at":"2026-09-29T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bengaluru, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":26000,"max_usd":57000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":51},"experience_years_min":15,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C#","optional":false},{"name":"JavaScript","optional":false},{"name":"JMeter","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false},{"name":"AI Agents","optional":true},{"name":"ASP.NET Core","optional":true},{"name":"AWS","optional":true},{"name":"Bottleneck","optional":true},{"name":"CI/CD","optional":true},{"name":"Cython","optional":true},{"name":"Datadog","optional":true},{"name":"Docker","optional":true},{"name":"Entity Framework Core","optional":true},{"name":"GitHub Actions","optional":true},{"name":"Jenkins","optional":true},{"name":"Kubernetes","optional":true},{"name":"LangChain","optional":true},{"name":"LLM","optional":true},{"name":"RAG","optional":true},{"name":"Rest API","optional":true},{"name":"Selenium","optional":true},{"name":"Swagger","optional":true}],"status":"live","first_seen_at":"2026-09-24T15:42:32Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-09-29T19:18:33Z","board_verified":true,"closed_at":null,"days_open":5,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":5},"description":"Summary of Position:\nWe are seeking a Sr. Principal Software Engineer with 15+ years of experience in designing and modernizing enterprise-scale applications. The role requires strong architectural leadership, hands-on expertise in cloud-native and distributed systems, and deep experience in performance engineering, automation, and software quality.\nThe candidate will drive technical strategy, define architecture standards, lead modernization initiatives, and collaborate across engineering, QA, DevOps, and business teams to deliver scalable, secure, and high-performing solutions.\nKey Responsibilities:\nLead architecture, design, and implementation of scalable, secure, and high-performing enterprise applications and cloud-native solutions.\nDefine architecture standards, design principles, and engineering best practices across teams.\nPartner with Development, QA, Automation, Performance, and DevOps teams to drive quality engineering, automation strategy, and production readiness.\nDrive modernization and cloud transformation initiatives ensuring scalability, reliability, and operational excellence.\nPerform architectural assessments and provide scalable, sustainable solutions to complex technical challenges.\nLead architecture, design, and production readiness reviews to ensure adherence to enterprise standards.\nOwn performance engineering by defining workload models, capacity strategies, and executing tests using tools like JMeter and NeoLoad.\nTroubleshoot complex production issues across distributed systems and drive root cause resolution.\nCollaborate with stakeholders to translate business requirements into scalable and robust solutions.\nDrive observability, monitoring, and reliability engineering practices to ensure system stability.\nMentor engineering teams and influence strategic technology decisions.\nEvaluate and adopt emerging technologies and automation capabilities to improve delivery efficiency.\nKey Requirements/Minimum Qualifications:\nBachelor’s or Master’s degree with 15+ years of experience in designing and modernizing enterprise-scale applications\nProgramming Languages\nC# (.NET Framework, .NET Core / .NET 6/7/8)\nPython\nSQL\nJavaScript\nExperience with Java (JDK 8/11/17/21) for interoperability and legacy system understanding (Good to have)\nFrameworks & Technologies\n.NET Core / ASP.NET Core\nWeb API / RESTful Services /MVC\nEntity Framework / ORM Tools\nMicroservices Architecture using .NET\nRESTful APIs\nOpenAPI / Swagger\nNuGet\nExperience working with Java-based services and APIs\nAutomation & Quality Engineering\n\n Hands-on experience in UI and API automation frameworks\nStrong expertise with:\nSelenium (Automation)\nRanorex (Automation)\nAPI Automation using REST-based testing frameworks\nExperience in designing scalable automation frameworks for enterprise applications\nStrong understanding of test strategy, regression automation, and CI-integrated automation\nAbility to integrate automation within CI/CD pipelines for continuous testing\nProficiency in scripting and automation using Python and/or C#\nArchitecture & Design\nEnterprise Solution Architecture\nMicroservices Architecture\nDomain-Driven Design (DDD)\nDistributed Systems Design\nEvent-Driven Architecture\nEnterprise Integration Patterns\nAPI Design and Governance\nSecurity Architecture\nHigh Availability and Resiliency Design\nScalability and Performance Engineering\nEnterprise Application Modernization\nCloud & DevOps\nAWS Cloud Services\nKubernetes\nDocker\nCI/CD Pipelines\nJenkins\nGitHub Actions\nInfrastructure Automation\nDevSecOps Practices\nContainerization and Orchestration\nObservability & Reliability Engineering\nDatadog\nZipkin\nDistributed Tracing\nApplication Monitoring\nLog Aggregation and Analysis\nPerformance Tuning\nReliability Engineering\nProduction Support\nOperational Excellence\nBottleneck Analysis and Optimization\nProduction Readiness Validation\nHands-on expertise with performance testing tools such as JMeter and NeoLoad\nAbility to design workload models, execute performance tests, and analyse bottlenecks\nExperience in end-to-end performance engineering including load testing, stress testing, and capacity planning.\nDatabase Expertise\nStrong expertise in Relational Database Management Systems (RDBMS)\nData Modelling and Database Design\nQuery Optimization and Performance Tuning\nData Migration and Data Integrity Strategies\nTransaction Management\nDatabase Scalability and Reliability\nArtificial Intelligence & Emerging Technologies\nGenerative AI\nLangChain\nAI Agents\nRetrieval-Augmented Generation (RAG)\nVector Databases\nLLM Integration and Orchestration\nIntelligent Automation Solutions\nEnterprise Knowledge Management Systems\nRequired Competencies\nExceptional analytical thinking and problem-solving capabilities.\nStrong ability to diagnose, troubleshoot, and resolve complex technical challenges in distributed enterprise environments.\nProven expertise in architectural decision-making and technology leadership.\nStrong stakeholder management and cross-functional collaboration skills.\nAbility to translate business requirements into scalable, maintainable, and secure technical solutions.\nStrong focus on software quality, automation, performance, maintainability, and operational excellence.\nStrong mentoring, leadership, and technical coaching abilities.\nAbility to balance strategic architecture responsibilities with hands-on technical execution.\nExperience driving engineering excellence, modernization initiatives\nWork hours: 1 PM to 10 PM IST\nRelocation assistance: Yes\nEmployment Scams: Alcon is aware of employment scams which make false use of our company name or leader’s names to defraud job seekers. Alcon does not offer any positions without interview and never asks candidates for money. All our current job openings are displayed here on the Careers section of our website, where you can search for open positions and apply directly.\nIf you have encountered a job posting or been approached with a job offer that you suspect may be fraudulent, we strongly recommend you do not respond, send money or personal information, and check our website for current job openings.\nATTENTION: Current Alcon Employee/Contingent Worker\nIf you are currently an active employee/contingent worker at Alcon, please click the appropriate link below to apply on the Internal Career site.\nFind Jobs for Employees\nFind Jobs for Contingent Worker\nAlcon is an Equal Opportunity Employer and takes pride in maintaining a diverse environment. We do not discriminate in recruitment, hiring, training, promotion or other employment practices for reasons of race, color, religion, gender, national origin, age, sexual orientation, gender identity, marital status, disability, or any other reason.","description_format":"text","description_chars":6707,"description_truncated":false,"requirements":{"experience_years_min":15,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Relocation assistance"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":true,"industries":["Surgical Instruments & Devices","Eyewear"],"lifecycle":[{"event":"open","at":"2026-09-24T15:42:32Z"}],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.899,"p_room":1,"age_days":4,"expected_fill_days":25,"reasons":["conf:2","velocity","win:early","comp:brand"],"computed_at":"2026-09-29T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/alcon-sr-principal-engineer","json_url":"https://alion.io/job/alcon-sr-principal-engineer.json","meta":{"generated_at":"2026-09-30T00:02:30Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":19,"day_limit":5000,"remaining_today":4981,"minute_limit":60,"resets_at":"2026-10-01T00:00:00Z"}}}