VAL
Vellmont Advisory Ltd
Backend Developer (MidāSenior Level) at Vellmont Advisory Ltd
KenyaFull TimeMid-Senior Level
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Vellmont Advisory Ltd
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Company Overview
Job Summary
This is NOT a juniorālevel role that only implements preāwritten API specifications. You independently own endātoāend backend delivery: database modelling ā API design & implementation ā frontend integration ā testing ā deployment & production maintenance. You will build our core realāestate business entity relationships: Property ā Unit ā Listing ā Landlord / Property Manager ā Tenant ā Lead ā Viewing ā Offer ā Transaction
You collaborate closely with frontend, sales & CRM teams to deliver our Rental V1 module on tight iteration timelines.
Key Responsibilities
Endātoāend backend module ownership
Complex realāestate data modelling (High Priority)
Design relational databaseļ¼PostgreSQL / MySQLļ¼for multiāentity property businessļ¼
One landlord owns many properties
One property unit can generate multiple listings & rental transactions with different pricing
Listings generate many leads, viewings and offers
Calculate actual rental income and DaysāonāMarket metrics
You must avoid flat simple tables (Property + Customer only); correctly decompose Listing / LeaseāTransaction / Viewing / Lead entities to prevent heavy future refactoring as data volume grows.
Backend development & infrastructure
Master at least one mainstream stackļ¼Node.js/NestJSļ½Java Spring Bootļ½Python FastAPI/Django
Design & implement secure, standardized RESTāAPIs; implement JWT/OAuth authentication & granular permission control
Git/GitHub workflow: branch management, PR review, version control
Handsāon Linux server operation & troubleshooting; AWS or equivalent cloud platform experience
Practical Redis caching, S3āstyle object storage for image/file upload
API security: input validation, access control, rateālimiting, audit logging
Write unit & integration tests; build lightweight CI/CD autoādeployment pipelines
AIāfirst engineering (Mandatory requirement)
Daily use AI coding assistants for: code generation, SQL & migration scripts, API documentation, testācase writing, debugging, code refactoring & log analysis.
Expect interview questionļ¼āIf you need to launch Rental V1 within 7 days working with one frontend developer, how will you utilise AI tools?ā Ruleļ¼You own all technical decisions; AI accelerates your execution.
Crossāteam collaboration
Clear onāboarding milestone expectations
Phase1 ā Week 1: Deliver NestVest Rental V1 Backend
Property APIļ½Unit APIļ½Listing API
Landlord / Property Manager APIļ½Tenant APIļ½Lead API
Image & file uploadļ½Search & filteringļ½Listing status management
CRM integration
Complete jointāintegration work with frontend developer
Phase2 ā Subsequent iteration Build modules: Viewing, Offer, Rental Transaction, Actual rent calculation, DaysāonāMarket metric; conversion flows: Landlord ā Sales Lead, Tenant ā Buyer Lead, Mortgage Lead.
Required Qualifications & Experience
3+ years handsāon backend development experience (exceptional candidates with strong practical results may be considered even without exact year count).
Proven relationalādatabase modelling experience for complex multiārelation business scenarios; you can decompose business entities instead of building oversimplified flat tables.
Handsāon experience: RESTāAPI design, Git workflow, Linux server administration, AWS or equivalent cloud services.
Must use AI coding tools in daily development workflow for build, debug, refactor & test writing.
Strong plus: past building CRM / Marketplace / SaaS / PropTech / Realāestate platform / Eācommerce / Bookingāstyle systems.
Startupāminded independent engineer: interpret business requirements, break down tasks, make technical tradeāoff decisions, selfādebug and push code to production, without waiting for fullyādetailed PRD documents.
Good written & spoken English for crossāfunctional team communication.
Note: We do not rigidly lock programmingālanguage stack. Outstanding architecture & database engineering capability weighs higher than exact stack match.