EXPERIENCE
10+ years
backend and platform delivery
BACKEND ADVISORY
Irfan Saric
I help teams fix and scale backend systems without slowing product delivery.
I usually get brought in when systems are overloaded, integrations are brittle, or critical releases keep slipping because platform constraints are shaping product decisions.
The goal is practical: stabilize what matters, simplify architecture, and move the team back to predictable execution.
architecture under strainbackend incidents and instabilityslow delivery and missed releasesscaling pressurelegacy debtplatform redesign decisions
Availability
Currently accepting new engagements
Current intake is open for architecture reviews and advisory retainers.
PRIMARY STACK
Go, Rust, Kubernetes
production-oriented systems work
ENGAGEMENT STYLE
Hands-on advisory
diagnosis to execution plan
Engagement Blueprint
Three modules, same intent: isolate the highest-cost technical risk and leave with a clear sequence the team can execute.
MOD_01
90 MINArchitecture Review
Focused assessment of architecture, bottlenecks, failure points, and the structural changes required to scale safely.
MOD_02
FORENSICForensic Backend Audit
Deep technical investigation into backend fragility, legacy debt, security exposure, and scale-limiting constraints.
MOD_03
RETAINEREngineering Advisory
Retained senior technical advisory across architecture, delivery discipline, technical direction, and engineering execution.
Session Scope
Bring the real operating context: architecture shape, production pain, and delivery constraints. The output is a focused action path, not a generic recommendation deck.
- architecture under strain
- backend incidents and instability
- slow delivery and missed releases
- scaling pressure
- legacy debt
- platform redesign decisions
Selected Engagements
Recent Delivery Work
Unifonic · Lead Software Engineer · June 2025-present
Unifonic Exposure Layer & SMSC Optimization
Problem
The platform needed to sustain rapidly increasing traffic across SMS, WhatsApp, and voice channels while reducing latency and improving…
Delivery
Led a team of 6 engineers to implement targeted performance optimizations (including custom in-memory lookups), strengthen webhook delivery reliabi…
Protolabs · Senior Software Engineer · November 2025-present
Protolabs Logistics Platform Modernization
Problem
Legacy logistics and pricing workflows limited visibility across shipping operations and slowed execution for ocean, road, and partner-…
Delivery
Built and maintained modern logistics and pricing workflows, integrated partner shipping paths, and contributed to migration into unified Protolabs…
Bleap.finance · Backend Lead Engineer · April 2023-April 2024
Bleap Hybrid Payments Platform
Problem
The product needed a secure and scalable backend to support KYC, AML, fraud checks, 3DS transaction flows, and multi-provider banking i…
Delivery
Led backend and infrastructure design with modular services for compliance and transaction orchestration, onboarded key providers, and aligned tech…
Co-founder of Q20 Engineering — building autonomous systems infrastructure for defense and industrial applications. q2o.ai
Latest Writing
Notes from production backend work
38 min read
Designing a Fintech Backend: Crypto + Open Banking Under One Roof
Over the better part of this year, I’ve been building a platform designed to serve both banks and blockchains through one request pipeline, one ledger, and…
BlockchainCoinbaseCrypto
Read articlearrow_forward32 min read
Coinbase and EVM Payment Integration
If you've ever tried to accept crypto payments in a real web application - not a hackathon demo, not a Medium tutorial copy-paste, an actual production sys…
BlockchainCoinbaseCrypto
Read articlearrow_forward23 min read
PSD2 and Open Banking Integration: A Developer's Field Guide
Over the better part of the last year and a half, I’ve worked extensively on PSD2 integrations - connecting to bank APIs across Europe, troubleshooting cer…
ApiEidasFapi
Read articlearrow_forwardNewsletter
Not ready for a call yet?
I write about backend architecture, distributed systems, and production engineering. No spam, no schedule - just new posts when they are ready.
Direct Contact
Need to discuss something before scheduling?
Send a direct message with context on your system, constraints, or project scope. I review submissions personally and reply by email.
Use this for architecture questions, delivery blockers, platform audits, or general collaboration requests.
If your platform is slowing down delivery, let’s fix it.
We can start with a focused session and leave with a concrete action plan.