You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Nitish KaushalNK

Nitish Kaushal

Solution Architect

€600/day
Brussels, BE
15+ years

Average response time: 1 hour

About Nitish

I am a Solution Architect with 14+ years of experience designing and delivering scalable, secure, and high-performance systems across fintech, payments, and SaaS platforms.

I specialize in building API-first, microservices, and event-driven architectures that support complex business needs, high transaction volumes, and real-time data processing.

Over the years, I have worked on enterprise-scale platforms, including digital wallet systems and payment infrastructures, where reliability, scalability, and security are critical.

💡 What I can help you with

End-to-end solution architecture design
Backend systems using Python (FastAPI), Node.js
API design & integration (REST, microservices)
Cloud architecture (AWS) and scalable deployments
Event-driven systems (Kafka, real-time processing)
Payment systems & fintech platforms
System performance, scalability & reliability improvements
Translating business requirements into technical solutions

🧠 My approach

I focus on:

Designing clean, scalable architectures
Aligning technical decisions with business goals
  • French

    Basic

  • English

    Fluent

  • Hindi

    Native or bilingual

Can work on-site
Brussels (up to 50km)

Experience

  • Ribbit Wallet Platform
    Solution Architect
    October 2025 - Today (8 months)
    Brussels, Belgium
    • ● Defined end-to-end solution architecture for a digital wallet platform, covering application, integration, and data layers
    • ● Designed scalable API-first architecture supporting secure financial transactions and external integrations
    • ● Defined non-functional requirements including scalability, security, and performance for distributed systems
    • ● Designed data pipelines enabling real-time data processing across blockchain, backend services, and client applications
    • ● Applied event-driven architecture patterns to support real-time updates and system integration
    • ● Collaborated with business and product stakeholders to translate requirements into scalable architecture solutions
    • ● Led architectural troubleshooting and resolution across distributed systems
    Python Blockchain UML Design System
  • Verifone
    Solution Architect / Technical Lead
    June 2022 - September 2025 (3 years and 3 months)
    Amsterdam, Netherlands
    • ● Contributed to solution architecture for enterprise-scale payment systems handling high transaction volumes
    • ● Participated in architecture design for cloud-native platforms using microservices and container-based systems
    • ● Designed and supported event-driven data platforms using Kafka and Snowflake
    • ● Defined API contracts and integration patterns across systems and teams
    • ● Collaborated with cross-functional teams to align architecture with business and product requirements
    • ● Improved system reliability, performance, and observability across distributed environments
    • ● Supported architecture alignment and design consistency across multiple services and teams
    Node.js React Agile method Payment
  • iMobileWeb
    Development Team Lead
    September 2016 - June 2022 (5 years and 9 months)
    • ● Developed scalable backend systems and APIs powering digital platforms and dashboards
    • ● Contributed to microservices-oriented and cloud-based architecture
    • ● Led backend development and improved performance for high-traffic applications
    • ● Technologies: Node.js, NestJS, MongoDB, AWS

Recommendations

Be the first to recommend Nitish

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Bachelor in Technology
    GITM
    2011
    Bachelor in Technology
  • Business Analysis
    Business Analysis

Categories