Khalid AhmadSenior Software Engineer

Portfolio

Projects

A concise map of products I have contributed to — with emphasis on scale, ownership, and stack.

NBS Source preview
NBS Source
International enterprise user base
Enterprise construction product specification platform used internationally.

Role

Full Stack Engineer

Tech

.NET 8
Angular
PostgreSQL
Elasticsearch
GraphQL
  • Developed scalable APIs and integrations
  • Improved search performance across large catalogs
  • Built enterprise frontend modules with performance budgets
Archify preview
Archify
SaaS for built-environment professionals
Digital workflows for architecture and construction documentation.

Role

Full Stack Engineer

Tech

.NET
Angular
TypeScript
PostgreSQL
REST
  • Implemented domain-heavy features with strong typing
  • Partnered on API contracts with frontend and QA
  • Hardened edge cases around permissions and auditing
LeadManager preview
LeadManager
Operational pipeline for revenue teams
Lead capture and pipeline tooling integrated with marketing and sales operations.

Role

Full Stack Engineer

Tech

Node.js
React
PostgreSQL
REST
AWS
  • Built ingestion paths for high-volume lead events
  • Tuned queries and indexes for reporting views
  • Owned features from UI through persistence
NBS LCA preview
NBS LCA
Specialist SaaS for sustainability workflows
Lifecycle assessment tooling for sustainability insights in construction.

Role

Software Engineer

Tech

.NET
Angular
TypeScript
Cloud services
  • Contributed to calculation and presentation layers
  • Worked with domain experts on data accuracy
  • Improved reliability of long-running workflows
RIBA CPD preview
RIBA CPD
UK professional development ecosystem
CPD providers and architects use the platform to manage accredited learning.

Role

Full Stack Engineer

Tech

.NET
Angular
SQL Server
REST
  • Delivered provider-facing administration features
  • Integrated third-party accreditation flows where required
  • Supported compliance-oriented release cycles
Silancar preview
Silancar
Enterprise integrations
Industry platform work spanning integrations and customer-facing capabilities.

Role

Software Engineer

Tech

.NET
JavaScript
SQL Server
REST
  • Maintained and extended legacy and modern stacks
  • Collaborated across business and engineering stakeholders