Principal Software Engineer (.Net) at Deimos

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• • Principal Software Engineer (.Net) at Deimos
  • View Jobs in ICT / Telecommunication / View Jobs at Deimos

  Posted: Jun 22, 2026

  Deadline: Not specified

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  Deimos is a Cloud-native Developer and Security Operations technology services company. We help companies of all sizes adopt the Cloud for improved service delivery to their clients. Were a fully remote African-based team of engineers who are passionate about implementing engineering best practices. We leverage the latest technologies while building globa...
  

  Principal Software Engineer (.Net)

  • Job Type Full Time , Remote
  • Qualification BA/BSc/HND
  • Experience 10 years
  • Location Lagos
  • Job Field ICT / Computer&nbsp

  Role Overview

  • We are looking for an experienced Principal Software Engineer to join our Professional Services team. You will build software solutions across a multitude of domains, ensuring that each project is done with scalability, maintainability, performance, security, and operational excellence in mind.
  • You will be expected to fill the role of a technical lead while providing guidance and mentorship within the team. You will work closely with the Scrum POs, Engineering Managers and Directors to ensure quality across all projects Deimos participates in. You will collaborate with other leads to constantly improve our processes, technologies, and architectures.
  • This role does not entail managing people directly, but it does entail managing the quality of the work output at Deimos. You will report to a Director of Software Engineering who is on a mission to deliver high-value projects built to the best of our ability.
    

  What will this person be doing

  • End-to-End System Ownership
    Own the architecture and lifecycle of critical systems—from design through production—ensuring they are scalable, resilient, observable, and operationally efficient. Drive long-term maintainability and reduce technical debt at a system-wide level.
  • Cloud-Native & Distributed Systems Engineering
    Design and build high-scale, distributed services using modern .NET (6/7/8+), with strong emphasis on containerization (Docker), orchestration (e.g., Kubernetes), and cloud-native patterns (event-driven, asynchronous processing, fault tolerance).
  • Architectural Leadership Across Domains
    Define and evolve system architecture across multiple teams and services. Lead the decomposition of monolithic systems into well-bounded, loosely coupled microservices aligned to business domains.
  • Technical Strategy & Decision Authority
    Act as a technical authority in the organization—evaluating and introducing frameworks, tools, and engineering practices. Make high-impact decisions balancing trade-offs between scalability, cost, performance, and delivery speed.
  • API & Integration Design
    Design robust, versioned, and well-governed APIs (REST/gRPC/event-driven), ensuring consistency, performance, and developer usability across internal and external consumers.
  • Operational Excellence & Observability
    Drive best practices around logging, monitoring, tracing, and alerting. Ensure systems are production-ready with clear SLOs/SLAs and proactive incident management strategies.
  • Engineering Quality & Standards
    Set the benchmark for code quality, testing strategy (unit, integration, contract, performance), and CI/CD practices. Actively review and guide implementation to maintain high engineering standards.
  • Security & Compliance by Design
    Embed security best practices (authentication, authorization, data protection, secrets management) into system architecture and delivery pipelines.
  • Mentorship & Technical Leadership
    Mentor senior and mid-level engineers, elevate team capability, and act as a force multiplier across squads. Lead through influence rather than authority.
  • Cross-Functional & Executive Collaboration
    Partner with product, business, and executive stakeholders to align technical strategy with business outcomes. Translate complex technical concepts into actionable insights

  What key KSAs (Knowledge, Skills, and Abilities) must this person have

  Experience & Seniority Calibration

  • 10+ years in software engineering, with clear evidence of operating at principal level
  • Demonstrated impact across multiple teams/systems (not just a single codebase)
  • Proven track record of architecting and scaling production systems

  Deep .NET Expertise

  • Expert-level proficiency in modern .NET (Core / .NET 6+)
  • Strong understanding of CLR internals, async programming, performance tuning, and memory management
  • Experience designing modular, testable, maintainable systems in C#

  Distributed Systems & Architecture

  • Strong experience with microservices, event-driven architecture, and eventual consistency
  • Hands-on experience with messaging systems (e.g., Kafka, RabbitMQ, SQS/SNS)
  • Proven ability to design for high availability, fault tolerance, and scalability

  Cloud & Platform Engineering

  • Deep experience in at least one primary cloud (AWS, Azure or GCP) and working knowledge of others
  • Strong understanding of containerization (Docker) and orchestration (Kubernetes or equivalent)
  • Experience designing cloud-native architectures (12-factor principles, autoscaling, resilience patterns)

  Data Layer Expertise

  • Strong experience with relational databases (PostgreSQL/MySQL) and NoSQL (e.g., DynamoDB)
  • Ability to design for performance at scale (indexing strategies, query optimization, data modeling)

  System Modernization

  • Proven experience decomposing monoliths into scalable distributed systems
  • Ability to manage transitional architectures (hybrid monolith + microservices)

  Engineering Excellence

  • Strong experience with CI/CD pipelines, automated testing strategies, and DevOps practices
  • Deep understanding of observability (metrics, logs, tracing)

  Leadership Without Authority

  • Demonstrated ability to influence technical direction across teams
  • Strong communication skills—able to align engineers, product, and leadership

  What KSAs would be nice for this person to have:

  • Domain-Driven Design (DDD): Deep experience applying both strategic and tactical DDD in production environments
  • Multi-Cloud Exposure: Experience working across AWS, Azure, and GCP in different contexts
  • High-Scale Systems: Experience operating systems at significant scale (e.g., high throughput, low latency systems)
  • Community & Thought Leadership: Conference speaking, open-source contributions, or technical blogging
  • Business Alignment: Experience shaping technical roadmaps aligned to measurable business outcomes

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  Check how your CV aligns with this job

  Method of Application

  Interested and qualified? Go to Deimos on deimoscloud.bamboohr.com to apply

  Build your CV for free. Download in different templates.

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