Manas Kumar Nayak
Director @ Ernst & Young · Enterprise Architect · Developer & Open-Source Enthusiast
Singapore, APAC
Director at Ernst & Young and Enterprise Architect with 15+ years designing and delivering large-scale cloud, digital experience, and eCommerce platforms across government and commercial sectors in APAC. Outside of EY, I run TechWayFit — my personal platform for writing technical blogs, sharing best practices, tackling real-world engineering challenges, and contributing to open-source initiatives.
Key Highlights
15+ years of building things that matter — from enterprise architecture at EY to open-source projects and technical blogging through TechWayFit.
Cloud-Native Architecture
Led AWS cloud-native and hybrid solution architecture for enterprise and government clients across APAC — EC2, S3, Lambda, CloudFront, RDS, DynamoDB, and CloudFormation — with strong focus on security, observability, and cost optimisation.
eCommerce Expert
15+ years architecting enterprise eCommerce across Sitecore Commerce, Magento, Shopify, Bespoke Commerce & Microsoft Commerce Server — serving millions of customers in APAC. Deep expertise across the full commerce domain:
Digital Experience Platforms
Designed and delivered headless and hybrid DXP solutions using Sitecore XP/XM, AEM, and Sitefinity — enabling personalised, omnichannel customer journeys at scale for enterprise and government programmes across APAC.
Enterprise Architecture & Governance
Defined architecture standards, reference patterns, and governance frameworks at EY and Capgemini — spanning solution blueprints, architecture review boards, and enterprise guardrails across multi-million-dollar delivery programmes.
Low-Code & Rapid Delivery
Championed OutSystems (Expert-certified) adoption across EY engagements to accelerate digital delivery — reducing time-to-market while maintaining enterprise-grade quality, security, and integration standards.
Open-Source & Personal Projects
Through TechWayFit I contribute to open-source initiatives including TechWayFit BMS — a multi-tenant CMS on ASP.NET Core 8 with plugin architecture, Lucene.NET search, CI/CD pipelines, and multi-database support (SQL Server, PostgreSQL, SQLite).
Technical Blogger & Educator
On TechWayFit I write about real-world engineering challenges and best practices — 45+ articles and 200+ interactive questions covering secure-by-design (OWASP Top 10), SOLID principles, clean code, and design patterns.
Pre-Sales & Client Advisory
Trusted advisor on multi-million-dollar presales pursuits for Fortune 500 and public sector clients — owning RFP responses, solution blueprints, effort estimates, and C-level presentations across EY's APAC technology consulting practice.
Professional Experience
From software engineer to director — a 15-year journey across some of the world's most respected organisations.
Ernst & Young (EY) — Singapore
- Lead architecture for enterprise-wide technology transformation across Fortune 500 and public sector clients in APAC, focusing on AWS, integration, and modern application platforms.
- Design cloud-native solutions on AWS (EC2, S3, Lambda, CloudFront, RDS, DynamoDB, CloudFormation) with emphasis on security, observability, and cost optimisation.
- Champion OutSystems (low-code) adoption to accelerate digital delivery and reduce time-to-market for targeted initiatives.
- Own multi-million-dollar presales pursuits — RFP responses, solution blueprints, estimates, and C-level executive presentations.
- Define architecture standards, reference patterns, and governance models across consulting teams.
- Mentor architects and senior engineers, building a high-performing architecture community of practice.
TechWayFit Personal Platform
TechWayFit is my personal platform — separate from my work at EY — where I write, build, and give back to the developer community.
- Write technical blogs on real-world engineering challenges, best practices, clean code, and architecture — aimed at helping developers grow their craft.
- Publish deep-dive content on secure-by-design (OWASP Top 10), SOLID principles, design patterns, and software design principles with interactive quizzes and code examples.
- Contribute to open-source initiatives including TechWayFit BMS — a multi-tenant CMS on ASP.NET Core 8 with plugin architecture, Lucene.NET search, and multi-database support.
- Build and operate the cloud infrastructure and CI/CD pipelines that power the TechWayFit platform.
Capgemini — Singapore
- Architected digital experience and eCommerce platforms for APAC clients including government agencies and large commercial enterprises.
- Designed end-to-end Sitecore CMS and Commerce implementations delivering personalised experiences to millions of users.
- Defined AWS cloud infrastructure for regulated government environments, ensuring security and compliance standards while enabling scalability.
- Led B2C commerce transformation engagements contributing to revenue uplift and improved customer engagement metrics.
SapientRazorfish — Bengaluru, India
- Led Sitecore delivery teams building complex content and commerce solutions for global brands.
- Drove solution design, coding standards, and performance tuning for high-traffic implementations.
Mindtree — Bengaluru, India
- Architected and delivered B2C eCommerce solutions on Sitecore, improving conversion and content agility.
- Guided cross-functional teams through full SDLC, ensuring on-time, high-quality releases.
McKinsey & Company — Bengaluru, India
- Built enterprise-grade .NET and Sitecore solutions supporting global consulting operations.
- Contributed to digital transformation initiatives across multiple sectors.
TESCO HSC — Bengaluru, India
- Developed and supported B2C eCommerce applications for international grocery platforms serving millions of customers.
Technical Skills
The technologies and platforms I work with every day.
Core Competencies
The skills that connect engineering craft to business outcomes.
Certifications
Validated expertise across architecture, agile, and platform technologies.
What Drives Me
Beyond titles and technologies — the values and thinking behind the work.
Strategic, business-focused technologist skilled at aligning architecture decisions with executive priorities and measurable outcomes — bridging the gap between the boardroom and the codebase.
I write on TechWayFit about the real engineering challenges I encounter and the best practices I've developed over 15+ years — making hard-won knowledge accessible to every developer.
Confident communicator with experience presenting complex solution roadmaps to C-level stakeholders across Fortune 500 companies and government agencies throughout APAC.
Passionate mentor and developer advocate who invests in team growth through coaching, communities of practice, and structured career progression frameworks.
About TechWayFit
TechWayFit is my personal platform where I write about real-world engineering challenges, technical best practices, and developer wisdom. It's also where I contribute to open-source initiatives — including an open-source CMS — and give back to the developer community through articles, quizzes, and code examples.