Full-Stack Developer (Senior) — Digital Transformation & Industrial IoT

What you’ll build (real projects you’ll touch)

· ERP/HR extensions & dashboards: React front-ends and Django/REST back-ends for modules like Sites Setup, PMV Store, Asset Master, Breakdown Machinery, user & password policy management, and bilingual (EN/AR) UIs integrated with ePROMIS ERP (v16) and QuantumHR.

· Industrial fuel management: Live telemetry, control and audit trails for pumps, solenoid valves and PODs; integrate microcontrollers/mini-PCs; design resilient offline/online data sync, logging, and analytics.

· Identity & security: Hardened authentication flows (policy, history, hashing), and future integrations with biometric devices (e.g., iris scanners) via secure APIs and encrypted storage.

· Data & reporting: MS SQL Server–backed APIs, stored procedures, and reports for operations, compliance, and finance.

What you’ll do

· Own features end-to-end: scope, design, implement, test, ship, and iterate.

· Build clean React front-ends (Material UI / Tailwind) with solid state management and i18n (English/Arabic).

· Develop secure Django/DRF services and occasional Java services where needed.

· Design and optimize MS SQL Server schemas, queries, and stored procedures; review migrations and performance.

· Integrate with third-party/legacy systems (ePROMIS, QuantumHR) and field devices (ESP32/industrial controllers).

· Implement strong security: password policy, salted hashing, key rotation, audit logs, role- based access, and API hardening.

· Ship production-grade CI/CD (Git), code reviews, and automated tests.

· Translate business rules into reliable software and clear documentation for users and devs.

Must-have experience

· 6+ years building production web apps used by real customers or internal teams.

· Front-end: React + modern tooling; component libraries; responsive, accessible UIs; form/state management; i18n.

· Back-end: Django/DRF (primary) and working Java experience (Spring or similar) for services/integration.

· Database: Microsoft SQL Server (schemas, indexes, views, stored procedures, performance tuning).

· APIs & integration: RESTful design, auth flows, secure data exchange, pagination, versioning.

· Security: Password hashing (PBKDF2/bcrypt/Argon2), password history/policies, OWASP awareness, input validation.

· DevOps basics: Git branching, code review, environment configs, logging/monitoring, and CI fundamentals.

· Proven delivery: you can point to shipped systems or modules with measurable impact.

· Experience with industrial/IoT integrations (ESP32, Modbus, serial/TCP bridges, telemetry pipelines).

· Bilingual UI patterns (EN/AR), RTL design competence.

· Azure/AWS deployment, Docker, Nginx/Gunicorn, Windows Server/IIS exposure.

· Reporting stacks (Power BI, Metabase) and scheduler/ETL experience.

· Experience hardening enterprise apps in construction/engineering or logistics.

How to apply

Email your CV/LinkedIn + a short portfolio to raffas@tristarsystem.com

raffas66@icloud.com

Include:

1. 2–3 shipped products/modules with your role, stack, and measurable outcomes.

2. A link to code samples (GitHub/Bitbucket or a redacted snippet).

3. One paragraph on securing passwords end-to-end between React → Django → MS SQL

Server.

4. Subject line: Senior Full-Stack — DESERT FALCON (so we know you read the post).

Job Type: Full-time