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.

Schedule SessionView Case Studies

EXPERIENCE

10+ years

backend and platform delivery

PRIMARY STACK

Go, Rust, Kubernetes

production-oriented systems work

ENGAGEMENT STYLE

Hands-on advisory

diagnosis to execution plan

Trusted by

Q20 Inc.Ministry of ProgrammingGeneralProtocolsSwissblock Technologies AGNAGA A.G.HivenetUnifonicRally eCommercebleap.financeSTFXQ20 Inc.Ministry of ProgrammingGeneralProtocolsSwissblock Technologies AGNAGA A.G.HivenetUnifonicRally eCommercebleap.financeSTFX

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 MIN

Architecture Review

Focused assessment of architecture, bottlenecks, failure points, and the structural changes required to scale safely.

MOD_02

FORENSIC

Forensic Backend Audit

Deep technical investigation into backend fragility, legacy debt, security exposure, and scale-limiting constraints.

MOD_03

RETAINER

Engineering 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
Open Advisory Booking

Selected Engagements

Recent Delivery Work

View all

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…

Latest Writing

Notes from production backend work

Open blog

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_forward

32 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_forward

23 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_forward

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.

Contact Form

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.

Schedule Sessionarrow_forward