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W2 candidates only || Lead Software Engineer (Big Data, Spark, AWS, Full Stack) || In-Person Interview || will consider H1B Transfer***NoC2C**

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W2 candidates only || Lead Software Engineer (Big Data, Spark, AWS, Full Stack) || In-Person Interview || will consider H1B Transfer***NoC2C**
VLS Systems Inc

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Rockville, Maryland, United States
Classification symbol Information Technology
H-1B
Job posted on July 1, 2026
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Job Description:
Job Description:We are seeking a highly experienced Lead Software Engineer to design, develop, and optimize enterprise-scale applications and big data platforms. The ideal candidate will have strong expertise in Apache Spark, AWS Cloud, Full Stack Development, System Design, and Software Engineering best practices. Required Skills:• 7+ years of Software Engineering experience• Strong System Design and Architecture experience• Expertise in Apache Spark, Hadoop, Hive, and Trino• Experience processing large-scale datasets (TB/PB scale)• Advanced SQL (Window Functions, Joins, Aggregations, Query Optimization)• Strong programming skills in Python or Scala• AWS Services: S3, EMR, Glue, Athena, Lambda, EKS• Full Stack Development (Frontend, Backend, APIs, Microservices)• Object-Oriented Design and Design Patterns• Data Storage Technologies (Relational & NoSQL)• Performance Tuning and Optimization• DevOps, CI/CD, and Infrastructure Automation• Test Automation, Unit Testing, and Quality Engineering• Software Security and Secure Coding Practices• Experience with AI tools such as GitHub Copilot, ChatGPT, Claude, Amazon QLeadership Responsibilities:• Lead architecture and technical design initiatives• Mentor and guide engineering teams• Drive engineering excellence and best practices• Collaborate across business and technology teams• Lead modernization, automation, and AI adoption efforts Preferred Skills:• Kubernetes / EKS• Serverless Architectures• Financial Services experience• Agile/Scrum leadership• Cloud Certifications (AWS)• Large-scale distributed systems experience Qualifications:• Bachelor''s degree in Computer Science or related field• Strong communication and stakeholder management skills• Proven experience delivering enterprise-grade solutions
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