Senior Backend Engineer (PHP)

Senior Backend Engineer (PHP – Core / Custom Frameworks)

Senior PHP Engineer (Backend / Systems)

Backend Engineer – PHP (High Performance Systems)

Remote (UK / Europe) | Occasional travel to Germany/U

S💰 Highly competitive (top-tier talent focus

)
Custom framework

s”“Core PHP (no heavy framework reliance

)”“Build and maintain internal librarie

s”“High-performance / low-latency system

s”“Scalability and concurren

cyBackend infrastructu

reDistributed syste

msHigh concurren

cyAsync processing (ReactPHP, Swoole, Framework

X)System desi

gn
This is NOT a typical Laravel/Symfony role. We are looking for engineers who have experience building or working with custom frameworks, core backend systems, and high-performance PHP applications. If your experience is primarily CMS or standard web development (WordPress, Drupal, basic Laravel apps), this role will not be the right f

it.
You must have at least one of the following: - Experience building or maintaining a custom framework - Contributions to open-source backend libraries/frameworks - Experience working on high-load, scalable backend sys

tems
You’ll be working directly with a highly technical CTO who is deeply experienced in PHP and backend system de

sign.
We are looking for engineers who think beyond frameworks — those who understand how systems work under the hood and can build them from sc

ratch.
About Ma

kersHubMakersHub is an award-winning fintech startup transforming Accounts Payable automation using AI. Backed by top investors, the company is scaling rapidly and building highly complex, high-performance backend s

ystems._________________________________

_______T

he RoleWe’re looking for a top-tier Senior PHP Backend Engineer to help build and scale a custom, high-performance backend infrastr

ucture.🚨 This is NOT a standard PHP/Larav

el roleYou will be working on custom-built frameworks, libraries, and infrastructure, designed for performance, scalability, and low l

atency._________________________________

_______What Yo

u’ll Do• Architect and build backend systems using c

ore PHP• Develop and maintain custom frameworks, libraries, and core

classes• Design scalable, high-performance APIs and s

ervices• Optimize for high concurrency, low latency, and reli

ability• Work closely with the CTO (PHP expert) on system design and archi

tecture• Drive best practices in security, testing, and perf

ormance_________________________________

_______Tec

h Stack• PHP (custom architecture – not relying on Laravel/S

ymfony)• FrameworkX (async proc

essing)• React (fr

ontend)• MySQL, Redis,

queues_________________________________

_______What We’re Looking For (Mus

t-Have)✅ Strong PHP engineering background (7+

years)✅ ✅ Proven experience building or working with custom frameworks (ESS

ENTIAL)✅ Experience building applications / platforms (not just we

b apps)✅ Ability to work without heavy framework r

eliance_________________________________

_______Strong Technical Experi

ence In• Designing scalable systems with high conc

urrency• Building custom libraries / reusable com

ponents• API architecture and third-party integ

rations• Performance optimization & database tuning

(MySQL)• Async processing, queues, and caching

(Redis)• Secure systems (payments, financial data pre

ferred)_________________________________

_______Ideal Candidate

Profile• Has contributed to meaningful open-source proj

ects OR• Built/maintained custom frameworks or internal platf

orms OR• Worked on high-load, low-latency, or financial

systems_________________________________

_______Cult

ure Fit• Experience in startups or smal

l teams• Comfortable with ambiguity & fast-paced envir

onments• High ownership

mindset• Genuinely excited about the product &

company_________________________________

_______Interview

Process1. Intro / beha

vioural2. Technical de

ep dive3. Final (CEO, if re

quired)⚠️ Process may move slightly slower due to sele

ctivity_________________________________

_______Lo

gistics• Fully remote (UK / Europe pre

ferred)• CTO based in

Germany• Travel 1–2x/y

ear max_________________________________

_______Screening Qu

estions• What experience do you have building custom frameworks or libraries from scratch (without relying on Laravel/Sy

mfony)?• Can you share open-source contributions or code s

amples?• Have you worked in a startup or small team envir

onment?• Are you comfortable working in a fast-paced, ambiguous envir