Architecting Resilient Distributed Systems, Modern .NET & Cloud for High-Growth Scale-ups.
Hi, I'm Bhaskar Shrestha (known as Bazza). A Senior Full Stack Engineer with 12+ years of experience, primarily scaling high-growth tech startups and scale-ups across FinTech, lending, and B2B SaaS. Having spent over a decade building core platforms in agile teams and contracting over the last 2 years, I know how to move fast without accumulating crippling tech debt — bringing pragmatic architecture, domain knowledge, and immediate delivery velocity to contract roles.
Selected Engineering Highlights
Agentic engineering stacks, high-throughput financial pipelines, and modern cloud platforms.
Self-Hosted Agentic SDLC & Multi-Agent Stack
A complete self-hosted agentic development stack connecting Gitea, Plane, and Outline through custom Model Context Protocol (MCP) gateways. Orchestrates autonomous Product Owner, UI/UX, Developer, and Tester agents driven by local llama.cpp / Qwen3.5 9B inference on an old gaming desktop.
High-Throughput Payment & Ingestion Engine
Enterprise ingestion pipeline processing millions of daily taxi and fleet payment transactions. Re-architected batch processing to cut statement runtime from 5 days to 8 hours with zero data loss.
Bank Mortgage Origination UI & Approval Engine
Engineered multi-level configuration workflows and embeddable modular UI plugins for tier-1 bank mortgage applications, adhering to strict compliance standards.
B2B Lending & Partner Commission Architecture
Architected complex event-driven integrations between .NET microservices and Salesforce. Led strategic authentication migration to Auth0, saving $45,000 annually while maintaining strict PCI compliance.
SharpTradie — Cloud SaaS Platform
Suite of specialized automation tools and invoice dispatch engines crafted for Australian trade businesses to streamline field quoting, job management, and invoicing.
Where I Deliver Immediate Impact
Whether you require a senior contractor to lead a critical cloud migration, unblock complex FinTech integrations, or accelerate full-stack delivery with zero ramp-up time.
Agentic AI & Accelerated Engineering Workflows
Design and implement autonomous agent workflows, Model Context Protocol (MCP) gateways, and AI-augmented developer tooling to dramatically accelerate delivery velocity without tech debt.
Enterprise .NET Modernization & Cloud Migration
Transform monolithic or aging .NET Framework and SSIS systems into resilient, containerized .NET 8 microservices engineered for cloud observability and cost efficiency.
FinTech, Lending & High-Throughput Architectures
Architect and scale transaction engines, loan origination workflows, and bank integration APIs built to handle peak volume and satisfy strict regulatory requirements.
Full-Stack Architecture & Modern Web Portals
Bridge robust backend microservices with lightning-fast, modular web frontends using modern React, Angular, TypeScript, and enterprise design systems.
Identity, DevSecOps & Security Governance
Harden application security, streamline automated delivery pipelines, and establish seamless enterprise identity management across mobile and web entry points.
Startups, Scale-ups & Track Record
Over a decade of scaling distributed systems through high-growth phases, financial integrations, and modern cloud transformations.
Senior Software Engineer (Security Champion)
Leading technical initiatives focused on enterprise security governance, modern observability, and cloud migration for Australia's leading specialist life insurer.
- Appointed Security Champion: Implemented SNYK and SonarQube for static analysis, vulnerability detection, and automated security quality gates.
- Spearheaded architectural planning for migrating legacy SSIS data systems to Azure-native microservices, drastically enhancing resilience, telemetry, and real-time reportability.
- Navigated regulatory frameworks and corporate governance requirements to guarantee adherence to rigorous financial compliance mandates.
Senior Software Engineer
Architected high-scale full-stack systems and accelerated feature velocity within an agile, cloud-native Azure environment.
- Architected and delivered high-scale full-stack capabilities utilizing .NET 8, Angular, and Google Firestore within an enterprise Azure environment.
- Integrated AI-assisted engineering workflows (Claude) to accelerate rapid prototyping, unit test generation, and architectural consistency.
- Led API development initiatives, ensuring distributed system fault tolerance and contract reliability across independent microservices.
Software Engineer (Backend Focus)
Served as primary backend technical anchor guiding a 5-engineer frontend team to build unified web and mobile client solutions.
- Acted as lead backend engineer, partnering with 5 frontend developers to construct a unified web and mobile customer experience.
- Spearheaded the migration of mission-critical legacy .NET Framework services to .NET Core 8.0, dramatically increasing system throughput and developer maintainability.
- Evaluated, selected, and implemented enterprise Identity Services to deliver seamless single-sign-on (SSO) and authentication across mobile and web interfaces.
- Collaborated closely with Product, BA, and QA teams to deploy major features with zero regressions across core microservices.
Software Engineer
Engineered mission-critical software solutions for bank mortgage origination, partner integrations, and complex compliance approval workflows.
- Engineered configurable multi-level approval workflows for enterprise banking clients, fulfilling intricate compliance and governance criteria.
- Developed modular UI widgets and embeddable plugins for bank mortgage application processing, enabling rapid white-label rollouts across tier-1 banking partners.
- Standardized local development environments across the engineering organization using Docker, cutting onboarding friction and eliminating environment discrepancies.
- Implemented serverless event-driven architectures utilizing AWS Lambda and SQS to handle asynchronous processing tasks.
Software Engineer / Subject Matter Expert (SME)
Served as technical SME for Partner and Commission (B2B) platforms at Australia's leading small business lender, managing high-stakes financial integrations and frontend modernization.
- Served as the technical SME for B2B Partner and Commission modules, ensuring high accuracy for critical commission calculations and financial disbursements.
- Architected complex event-driven integrations between .NET microservices and Salesforce using Azure Service Bus, Azure Functions, and WebJobs.
- Led the strategic migration of authentication from Salesforce Community to Auth0, reducing licensing costs by $45,000 annually while strictly maintaining PCI compliance.
- Pioneered internal adoption of React and TypeScript, successfully transitioning company systems from legacy Angular architectures.
- Partnered with design teams to architect the company's inaugural Design System, standardizing UI consistency and speeding up feature release velocity by 30%.
- Mentored junior and mid-level engineers in software design patterns, code review standards, and continuous learning.
Software Developer
Engineered high-throughput payment ingestion engines and transaction reporting infrastructure for national transport payments.
- Re-engineered statement generation pipelines, reducing processing duration from 5 days to under 8 hours (15x performance increase), dramatically boosting corporate client satisfaction.
- Constructed high-throughput ingestion microservices capable of processing millions of daily transactions from in-vehicle payment terminals via Azure Service Bus and Cosmos DB.
- Key engineer on 'Cabcharge Plus', the company's flagship enterprise payment and account portal, maintaining 99.99% operational availability.
Software Engineer
- Engineered high-concurrency WCF REST booking APIs that served as the primary reservation gateway for all corporate web properties.
- Developed real-time vehicle geolocation tracking APIs and created a WinForms TCP application for live operational monitoring.
.NET Systems Developer
Engineered automated processing pipelines and led core ticketing platform modernization.
- Process Automation: Optimized Genesys service processing, cutting execution cycle time from 6 hours to 2 hours via SQL Server stored procedure tuning and code refactoring.
- System Upgrades: Managed end-to-end upgrade of core Ticketing System and Intranet from .NET v2.0 to v4.0 with zero disruption.
Sr. Analyst Developer
Led legacy modernization, real-time courier tracking, and corporate web platform re-engineering.
- Legacy Modernization: Spearheaded strategic migration of mission-critical legacy systems from Visual Basic 6 to the .NET framework, ensuring business continuity.
- Product Innovation: Architected and engineered a ground-up real-time geolocation tracking system for live driver and package visibility.
- Full-Stack Web Re-engineering: Led end-to-end transition of corporate web presence from Classic ASP to ASP.NET, implementing SOAP APIs to enable high-performance, AJAX-driven user experiences.
Engineering Capabilities & Stack
Battle-tested technologies and architectural domains honed over 12+ years of production deployments.
Agentic AI & Developer Velocity
Multi-agent orchestration, Model Context Protocol (MCP), and local LLM workflows.
Backend & Distributed Systems
High-throughput, resilient architectures engineered for extreme transaction accuracy and scale.
Cloud Platforms & Infrastructure
Cloud-native deployments on Azure and AWS with modern infrastructure automation.
Frontend & UI Architecture
Clean, component-driven user interfaces designed for rapid workflows and design consistency.
DevSecOps, Testing & Quality
Automated pipelines, static analysis, and rigorous vulnerability detection.
FinTech & Domain Knowledge
Deep domain familiarity with financial services, lending mechanisms, and regulatory rigor.
Education & Credentials
A rigorous analytical foundation combining advanced computing systems with enterprise business management.
Master of Information Technology
Awarded Golden Key International Membership (top 15% of university students globally) for superior academic achievement.
Master of Business Studies (Management Information Systems)
Advanced coursework in enterprise information systems, accounting theory, and managerial finance.
Bachelor of Business Studies
Foundations in commercial finance, statistics, and organizational administration.
Let's Discuss Your Next Engineering Engagement
Whether you need a senior contractor to lead a legacy-to-cloud modernization, unblock a mission-critical FinTech integration, or hit the ground running on .NET and Azure architectures.