Summary of Position:
We 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.
The 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.
Key Responsibilities:
• Lead architecture, design, and implementation of scalable, secure, and high-performing enterprise applications and cloud-native solutions.
• Define architecture standards, design principles, and engineering best practices across teams.
• Partner with Development, QA, Automation, Performance, and DevOps teams to drive quality engineering, automation strategy, and production readiness.
• Drive modernization and cloud transformation initiatives ensuring scalability, reliability, and operational excellence.
• Perform architectural assessments and provide scalable, sustainable solutions to complex technical challenges.
• Lead architecture, design, and production readiness reviews to ensure adherence to enterprise standards.
• Own performance engineering by defining workload models, capacity strategies, and executing tests using tools like JMeter and NeoLoad.
• Troubleshoot complex production issues across distributed systems and drive root cause resolution.
• Collaborate with stakeholders to translate business requirements into scalable and robust solutions.
• Drive observability, monitoring, and reliability engineering practices to ensure system stability.
• Mentor engineering teams and influence strategic technology decisions.
• Evaluate and adopt emerging technologies and automation capabilities to improve delivery efficiency.
Key Requirements/Minimum Qualifications:
Bachelor’s or Master’s degree with 15+ years of experience in designing and modernizing enterprise-scale applications
Programming Languages
• C# (.NET Framework, .NET Core / .NET 6/7/8)
• Python
• SQL
• JavaScript
• Experience with Java (JDK 8/11/17/21) for interoperability and legacy system understanding (Good to have)
Frameworks & Technologies
• .NET Core / ASP.NET Core
• Web API / RESTful Services /MVC
• Entity Framework / ORM Tools
• Microservices Architecture using .NET
• RESTful APIs
• OpenAPI / Swagger
• NuGet
• Experience working with Java-based services and APIs
Automation & Quality Engineering
• Hands-on experience in UI and API automation frameworks
• Strong expertise with:
Selenium (Automation)
Ranorex (Automation)
• API Automation using REST-based testing frameworks
• Experience in designing scalable automation frameworks for enterprise applications
• Strong understanding of test strategy, regression automation, and CI-integrated automation
• Ability to integrate automation within CI/CD pipelines for continuous testing
• Proficiency in scripting and automation using Python and/or C#
Architecture & Design
• Enterprise Solution Architecture
• Microservices Architecture
• Domain-Driven Design (DDD)
• Distributed Systems Design
• Event-Driven Architecture
• Enterprise Integration Patterns
• API Design and Governance
• Security Architecture
• High Availability and Resiliency Design
• Scalability and Performance Engineering
• Enterprise Application Modernization
Cloud & DevOps
• AWS Cloud Services
• Kubernetes
• Docker
• CI/CD Pipelines
• Jenkins
• GitHub Actions
• Infrastructure Automation
• DevSecOps Practices
• Containerization and Orchestration
Observability & Reliability Engineering
• Datadog
• Zipkin
• Distributed Tracing
• Application Monitoring
• Log Aggregation and Analysis
• Performance Tuning
• Reliability Engineering
• Production Support
• Operational Excellence
• Bottleneck Analysis and Optimization
• Production Readiness Validation
• Hands-on expertise with performance testing tools such as JMeter and NeoLoad
• Ability to design workload models, execute performance tests, and analyse bottlenecks
• Experience in end-to-end performance engineering including load testing, stress testing, and capacity planning.
Database Expertise
• Strong expertise in Relational Database Management Systems (RDBMS)
• Data Modelling and Database Design
• Query Optimization and Performance Tuning
• Data Migration and Data Integrity Strategies
• Transaction Management
• Database Scalability and Reliability
Artificial Intelligence & Emerging Technologies
• Generative AI
• LangChain
• AI Agents
• Retrieval-Augmented Generation (RAG)
• Vector Databases
• LLM Integration and Orchestration
• Intelligent Automation Solutions
• Enterprise Knowledge Management Systems
Required Competencies
• Exceptional analytical thinking and problem-solving capabilities.
• Strong ability to diagnose, troubleshoot, and resolve complex technical challenges in distributed enterprise environments.
• Proven expertise in architectural decision-making and technology leadership.
• Strong stakeholder management and cross-functional collaboration skills.
• Ability to translate business requirements into scalable, maintainable, and secure technical solutions.
• Strong focus on software quality, automation, performance, maintainability, and operational excellence.
• Strong mentoring, leadership, and technical coaching abilities.
• Ability to balance strategic architecture responsibilities with hands-on technical execution.
• Experience driving engineering excellence, modernization initiatives
Work hours: 1 PM to 10 PM IST
Relocation assistance: Yes
Employment 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.
If 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.
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If you are currently an active employee/contingent worker at Alcon, please click the appropriate link below to apply on the Internal Career site.
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Alcon 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.
Skills Required
- Bachelor’s or Master’s degree
- 15+ years of experience designing and modernizing enterprise-scale applications
- Strong experience with C# and .NET Framework or .NET Core
- Experience with Python, SQL, and JavaScript
- Experience with enterprise architecture, microservices, distributed systems, and cloud-native solutions
- Experience with UI and API automation frameworks, including Selenium and Ranorex
- Experience integrating automation into CI/CD pipelines
- Experience with AWS, Kubernetes, Docker, Jenkins, or GitHub Actions
- Hands-on performance engineering experience using JMeter and NeoLoad
- Experience with observability, distributed tracing, application monitoring, production support, and reliability engineering
- Strong relational database, data modeling, query optimization, and database performance tuning experience
- Experience with Java and Java-based services and APIs
- Experience with Generative AI, LangChain, AI agents, RAG, vector databases, or LLM integration
- Strong architectural decision-making, stakeholder management, mentoring, and technical leadership skills
Alcon Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Alcon and has not been reviewed or approved by Alcon.
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Retirement Support — Retirement benefits are framed as unusually strong, pairing a 401(k) match with an additional employer-funded retirement plan contribution. Stock purchase access and performance bonuses are also positioned as meaningful components of total rewards.
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Healthcare Strength — Health coverage is described as comprehensive across medical, dental, vision, life, disability, and mental health support. Distinctive vision-related perks, including free contact lenses in some cases, reinforce the perceived strength of the health-and-wellness offering.
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Leave & Time Off Breadth — Time-off offerings are characterized as robust, including paid holidays, PTO/vacation, paid sick time, and parental leave. Flexible time off for certain exempt roles and reported year-end shutdown periods further strengthen perceived coverage.
Alcon Insights
What We Do
Alcon helps people see brilliantly. As the global leader in eye care with a heritage spanning more than seven decades, we offer the broadest portfolio of products to enhance sight and improve people’s lives. Our Surgical and Vision Care products touch the lives of more than 260 million people in over 140 countries each year living with conditions like cataracts, glaucoma, retinal diseases and refractive errors. Our more than 20,000 associates are enhancing the quality of life through innovative products, partnerships with eye care professionals and programs that advance access to quality eye care.
