Principle Software Engineer

Kalasko

About the Role

We are seeking an experienced Principal Software Engineer to provide technical leadership and guide the long-term architecture of a fast-growing AdTech platform in the Digital Out-of-Home (DOOH) industry. You will drive innovation, mentor engineers, and deliver highly scalable, reliable, and performance-driven solutions.

This role offers the opportunity to lead complex projects, shape technical direction, and contribute to building one of the smartest in-store media networks worldwide.

Vision & Mission

• Vision: Make physical spaces as intelligent and engaging as digital ones.
• Mission: Harness the power of data, AI, and Machine Learning to deliver highly personalized, profitable, and engaging in-store experiences.
• Values: Proactive, Rational, Resilient, Diverse, and Social.

Job Information

• Job Title: Principal Software Engineer
• Department: Technology / Engineering
• Location: Remote / Hybrid / On-Site (El Gouna, Red Sea, Egypt)
• Employment Type: Full-time
• Reports To: Team Lead
• Subordinates: Senior Software Engineers

Purpose of the Role

As a Principal Software Engineer, you will:

• Lead the technical direction of the product and development teams.
• Prototype and validate architectural concepts.
• Maintain high coding standards, best practices, and modern design patterns.
• Collaborate with product, design, and engineering to align solutions with business goals.
• Mentor engineers, foster innovation, and drive continuous improvement across the engineering organization.

Key Responsibilities

• Technical Leadership: Drive architectural design and ensure scalable, fault-tolerant, and high-performance systems.
• Collaboration: Partner with Principal Frontend Engineers and cross-functional teams to validate and deliver solutions.
• Prototyping & Innovation: Explore new technologies and propose solutions that improve efficiency and product quality.
• Mentorship: Provide technical training and guidance for engineers.
• Development: Write clean, efficient, and maintainable code across backend and frontend systems.
• Maintenance & Optimization: Maintain, upgrade, and optimize existing systems while ensuring excellent user experience.
• Agile Execution: Actively contribute to backlog grooming, sprint planning, and Agile rituals.
• Testing & Validation: Implement validation, verification, and performance testing to ensure reliability.
• Continuous Improvement: Automate workflows, refine development practices, and proactively recommend improvements.

Key Performance Indicators (KPIs)

• Code Quality: Low defect density and high maintainability.
• Delivery: Timely delivery of features aligned with sprint goals.
• Satisfaction: Positive stakeholder and team feedback.

Skills & Experience

• Software Development: 8 10+ years of experience delivering scalable, maintainable, and performance-driven systems.
• Technical Leadership: Proven track record of leading architecture and design for complex software solutions.
• Backend Development: Proficiency in Python, Node.js, Go, or C#, with strong knowledge of microservices and event-driven systems.
• Frontend Development: Expertise in JavaScript (ES6+), TypeScript, React, Angular, or Vue.js.
• APIs & Integration: Experience with RESTful APIs and GraphQL.
• Cloud & Infrastructure: Skilled in AWS, Azure, or GCP, with containerization (Docker, Kubernetes) and Infrastructure as Code (Terraform, Ansible, CloudFormation).
• Databases: Proficiency in SQL (PostgreSQL, Timescale) and NoSQL (MongoDB, Redis).
• CI/CD: Hands-on with GitLab CI, Jenkins, GitHub Actions, and advanced Git workflows.
• Testing: Unit, integration, and automated testing.
• System Design: Experienced in designing scalable, fault-tolerant systems with monitoring tools (Prometheus, Grafana, ELK Stack).
• Security: Knowledge of OAuth2, JWT, HTTPS, OWASP practices.
• Agile: Strong background in Agile/Scrum methodologies.
• Communication: Ability to explain complex technical solutions to technical and non-technical stakeholders.

Education

• Bachelor s degree in Computer Science, Information Systems, or related field.

Language Skills

• Excellent English (Writing, Speaking, Reading, Listening).