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investing in growth

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Company Overview

Strategic Technical Services, LLC, dba Strategic Tech Solutions (STS) is a small business specializing in Digital PLM Solutions, Model Based Systems Engineering, Custom Software Development expertise, Cloud Services, Data Engineering and Cybersecurity advisory services for a variety of federal and commercial customers. As our customer base evolved over the past decade, our support has become increasingly solutions-oriented, as opposed to isolated services. We are experts in PTC Windchill (WC) implementation and support, including Windchill Quality Solutions (WQS) to support Product Lifecycle Management solutions.

From our offices in Carmel, Indiana and Maryland, we manage a network of team members throughout the US that are positioned to provide either on-site or remote support. Our current customers extend from the Washington DC area to a selection of international customers and include some of the nation’s leading Aerospace and Defense entities.


Trusted partner to the clients of any size & any category and trusted workplace that brings the best out of the associates


• To become one of the leading digital transformation solutions providers.
• Be the first choice for offering world class solutions.
• Be the first choice to work with to reach career goals.

Core Values

• Client value creation
• Best people, technology, and practices
• Integrity
• Operational excellence

Engagement Methodology


Our Team

Swamy Senthil


Swamy Senthil is a successful serial entrepreneur and investor in tech-businesses. Through his Swasen Ventures, he has successfully incubated several emerging technologies to solve complex digital transformation challenges, spearheading Product Lifecycle Management and Model Based Systems Engineering solutions.

A Ph.D. from prestigious Indian Institute of Technology, (IIT) Madras, Swamy is a thought leader in Enterprise Software Applications and Data Science / Architecture. His track record of building high-performing teams and delivering outstanding results makes him a highly sought-after mentor and business leader.

Swamy has provided consulting advice to several corporate C-suites on strategic direction and technology roadmap. He believes in building strong collaborative environments where each member contributes to the betterment of others and the community.

As the CEO of Strategic Technology Solutions (STS), Swamy is dedicated to fostering his latest acquisition to become synonymous with digital-innovation empowerment in design and manufacturing, both within the public and private sectors.

Rich Castellano


Richard J. Castellano is the Sr. Vice President of Strategy at STS, responsible for Operations and Corporate Strategy.

Richard has had a distinguished career spanning over three decades at Lockheed Martin, showcasing exceptional financial acumen and strategic vision. He held various pivotal roles, including Finance Director of Lockheed’s Space division, Deputy CFO of a joint venture, and CFO of Lockheed Martin Transportation & Security Solutions, where he tripled its revenue across three sectors. Later, as CFO of Lockheed Martin Global Solutions, he led the company’s expansion into international markets.
After retiring from Lockheed, Richard pursued a successful consulting career, aiding companies like TCS during its acquisition by Com Tech. He then became COO/CFO, and later, CEO of Strategic Technical Services, eventually overseeing its successful sale in November 2022.

Castellano’s academic background includes an undergraduate degree from The Ohio State University and an MBA in International Business from the University of Maryland University College, highlighting his commitment to lifelong learning and excellence.

Nilothpaul (Nil) Dutta

VP of Business Development

Nilothpaul (Nil) Dutta is the head of Business Development at STS. He is responsible for revenue growth, new initiatives, and alliance management, driving the company’s go-to-market strategies.

Nil brings more than two decades of technology-sales experience of a cross-functional growth leader with extensive knowledge of Product Lifecycle Management (PLM), Internet of Things (IoT) platforms, and Modeling & Simulation of ‘Design-through-Manufacturing’ processes.

Most recently, Nil served as a VP of Business Development at Parsons Corporation, driving innovation in critical infrastructure and Federal/State/Local government. Prior to that, he has held leadership roles at Tridium (Honeywell), PTC and Dassault Systèmes, leading multi-million dollars of revenue-growth across North and South Americas.

Nil earned dual Master of Engineering degrees in Design and Manufacturing from the University of Michigan, Ann Arbor and is a graduate of the Tauber Institute, Ross Business School.



STS is a strong believer that AFTER-SALES Service talks louder than PRE-SALES campaign. Following is a list of select number of our customers.

How can we help you?

Contact us for Digital Transformation of your manufacturing focused businesses. We specialize in US Government and Commercial projects.