Portfolio - My Portfolio

Open Banking Web Application – AIS & PIS

I designed and developed a secure, PSD2-compliant open banking platform enabling businesses to use both Account Information Services (AIS) and Payment Initiation Services (PIS). The solution supports direct API integration as well as a hosted payment interface, giving companies flexibility in adopting open banking without compromising on security or compliance.
The onboarding process begins when the Customer Service team registers a new company via the Projects module. The company’s primary account holder automatically receives a personalized welcome email containing a secure link to set their password and access the Company Interface. All logins are protected by two-factor authentication (2FA), ensuring strong security and regulatory compliance.
Once onboarded, companies can request integration credentials along with a one-time-view integration token for maximum security. They are provided with comprehensive API documentation to guide AIS/PIS integration into their systems.
For businesses without in-house technical resources, the platform offers a hosted PIS solution. This allows companies to create payment links for invoices, send them to clients instantly, and track payment statuses in real time. Supported statuses include: Created, Initiated, Paid, Failed, Canceled, and Expired.
This platform streamlines onboarding, integration, and payment processing, enabling companies to launch open banking capabilities quickly, securely, and in full compliance with PSD2 standards.
Tech Stack:

Backend: Laravel (PHP)
Frontend: ReactJS + TypeScript
Database: PostgreSQL
Security & Authentication: Two-Factor Authentication (2FA), one-time token generation, role-based access control
Email Services: SMTP-based transactional email system
Hosting: AWS (EC2, RDS)
Compliance: PSD2 / Open Banking API Standards

Key Achievements:

Delivered a full-cycle company onboarding flow with automated welcome emails and secure account setup.
Implemented secure integration credential management with one-time-view tokens to protect API access.
Developed a no-code hosted PIS solution, enabling payment link creation and client invoicing in seconds.
Built real-time payment tracking with multiple status updates for better operational visibility.
Ensured strong security measures and regulatory compliance with industry best practices.

My Role & Impact:

Managed DevOps operations on AWS, including EC2, RDS, and deployment pipelines.
Acted as a bridge between management and development teams, translating business requirements into technical specifications and documentation.
Oversaw Jira sprint planning and task management to ensure timely feature delivery.
Designed and developed core backend APIs, while leading and mentoring a mid-level backend developer.
Led the frontend team, ensuring UI/UX quality and consistent implementation of business logic.

Liquidity Automation

I developed a real-time liquidity management system designed to make liquidity available within seconds for client exchange requests on the blockchain. The platform supports crypto-to-crypto swaps, fiat-to-crypto on-ramps, and crypto-to-fiat off-ramps, ensuring instant and secure asset transfers between integrated financial and crypto institutions.
The process begins when a client initiates an exchange request through the blockchain, which triggers a webhook notification from Crassula to our Liquidity Automation service. The system then determines the transaction type and executes the appropriate liquidity operations:

On-Ramp (Fiat → Crypto): The platform manages fiat liquidity by transferring the corresponding currency from ClearJunction to Kraken, then sends the requested cryptocurrency from Kraken to FireBlocks for delivery to the client.
Off-Ramp (Crypto → Fiat): The system moves the provided cryptocurrency from FireBlocks to Kraken, converts it, and transfers the requested fiat currency from Kraken to ClearJunction.
Crypto Swap (Crypto → Crypto): The provided cryptocurrency is moved from FireBlocks to Kraken, exchanged, and the requested cryptocurrency is transferred from Kraken back to FireBlocks and then into the client’s vault.

This automation eliminates manual intervention, reduces transaction times from hours to seconds, and ensures precise liquidity handling for high-volume blockchain exchanges.
Tech Stack

Backend: Laravel (PHP)
Database: PostgreSQL
Integrations: Crassula (webhooks), ClearJunction, Kraken, FireBlocks
Security: API authentication, role-based access control, transaction logging
Hosting: AWS (EC2, RDS, S3)

Key Achievements

Built a fully automated liquidity workflow capable of processing requests in seconds.
Integrated multiple financial and crypto platforms for seamless asset movement.
Implemented secure webhook handling from Crassula with end-to-end transaction traceability.
Reduced operational overhead by removing manual liquidity management for high-volume exchange requests.
Designed a scalable architecture to handle simultaneous on-ramp, off-ramp, and crypto swap transactions.

My Role & Impact

Solely responsible for end-to-end backend development, delivering all core APIs and business logic.
Managed AWS DevOps operations, including deployment pipelines, scaling, and uptime monitoring.
Gathered business requirements from stakeholders and translated them into clear technical documentation.
Planned and executed all development tasks using Jira sprint management.
Ensured the system’s security, reliability, and high performance throughout production.

Proteus – Multi-Tenant Solution for the Oil & Gas Sector

I was acquihired into Proteus to architect and lead the development of a multi-tenant SaaS platform tailored for the oil and gas sector. My role encompassed system architecture, client requirement gathering, technical documentation, and leading a team of 8+ developers to deliver a platform that transformed project management, collaboration, and operational efficiency.
A core part of the platform was an advanced project management module with the ability to create a Work Breakdown Structure (WBS). Each broken-down task could be assigned to the relevant resource, enabling structured project execution. Resources were able to log timelines at the end of each day, and based on these submissions, clients were automatically invoiced against scheduled dates. This automation streamlined both project tracking and billing, significantly improving accuracy and reducing overhead for clients.
The Minimum Viable Product (MVP) was delivered in six months, providing the foundation for milestone tracking, workflow automation, and client invoicing. Over the following five years, the platform underwent significant transformation, evolving through new module development, client-driven enhancements, and long-term scalability improvements.
Tech Stack

Backend: Laravel (PHP)
Frontend: ReactJS + TypeScript
Database: PostgreSQL
Security: API authentication, role-based access control
Hosting & DevOps: AWS (EC2, RDS), Git for version control and CI/CD pipelines
Methodology: Agile (Scrum with Jira for sprint planning and tracking)

Key Achievements

Architected and delivered a scalable multi-tenant SaaS platform for the oil and gas sector.
Launched the MVP in six months, accelerating adoption and client onboarding.
Developed a WBS-based project management tool with resource allocation, daily timeline submissions, and automated client invoicing.
Oversaw the evolution of the platform over five years, driving major transformations and scaling.
Translated client requirements into actionable technical specifications and documentation.
Directed the development of new functional modules, ensuring alignment with industry needs.
Enhanced delivery efficiency through agile milestone management, improving timelines and reducing costs.
Maintained a 95%+ client satisfaction rate, securing repeat business and long-term partnerships.

My Role & Impact

Served as system architect, defining the technical roadmap and ensuring platform scalability.
Engaged directly with clients to gather requirements and authored technical specification documents.
Led a team of 8+ developers, ensuring high-quality and timely delivery across backend and frontend teams.
Managed AWS infrastructure (EC2, RDS) and oversaw Git operations for versioning, branching, and CI/CD deployments.
Oversaw Jira sprint planning, milestone tracking, and bug resolution to maintain delivery cycles.
Ensured all technical execution consistently aligned with client expectations and business strategy.

My Projects

Open Banking Web Application – AIS & PIS

Liquidity Automation

Proteus – Multi-Tenant Solution for the Oil & Gas Sector