Senior Full Stack Developer

7 days ago

Cape Town, Western Cape, South Africa Ada Meher Full time R900 000 - R1 080 000 per year

Intermediate Full Stack Developer – Stellenbosch, Remote – R90,000 CTC

Ada Meher are partnered with a conversational voice intelligence company, who were founded in 2019 and are now very well established in the market. They are backed by a large technology group and have targets to continue to expand. They are utilising AI to produce transcripts from clients phone call recordings and perform analysis on the transcripts. Automation is a key focus for this business and they are utilising LLMs to automate processes.

The team is currently made up of two developers and five Data/AI engineers. My client are seeking a competent full stack developer to support the growth of their product. This company is ISO/IEC 27001:2022 certified, so candidates must have an understanding of security best practices aligned with OWASP top 10.

This company are based in Stellenbosch, but they operate on a mostly remote basis with monthly or bi-monthly meet ups face-to-face. Candidates must be based in Cape Town or willing to relocate to allow for adhoc f2f engagement in the office.

Responsibilities

  • Build high-quality ASP.NET Core REST APIs with OpenAPI/Swagger.
  • Design and optimise SQL databases for transactional and analytical use.
  • Deliver full-stack features across TypeScript + Aurelia (React/Angular also suitable) and .NET services.
  • Contribute to Docker/Kubernetes workflows with a focus on reliability and observability.
  • Implement secure auth (OIDC/OAuth2) and promote secure coding.
  • Monitor performance using OpenTelemetry, Grafana, and CloudWatch.
  • Automate CI/CD, IaC (AWS CDK in C#), testing, and quality checks.
  • Work closely with product/design, participate in code reviews, and drive features from concept to production.
  • Explore and apply LLM/ML capabilities for real product value.

Tech Stack

  • Backend:
    C#, .NET 8+, ASP.NET Core, EF Core, OpenAPI
  • Data:
    SQL, OLTP/OLAP design, caching, queues
  • Cloud/Infra:
    AWS (Fargate, Lambda, SQS/SNS/EventBridge, S3, RDS/Aurora, API Gateway), IaC (AWS CDK in C#), Docker, Kubernetes (EKS bonus)
  • Frontend:
    TypeScript, Aurelia (or React/Angular), modern tooling/testing
  • Security & Observability:
    OIDC/OAuth2, OWASP Top 10, OpenTelemetry, Grafana, CloudWatch
  • AI/LLMs:
    OpenAI, Bedrock, Anthropic, embeddings/vector search, prompt engineering

Requirements

  • 5+ years building production software with ownership across backend + customer-facing features.
  • Strong .NET Core experience with excellent API design.
  • Advanced SQL skills (tuning, indexing, schema design).
  • Proven AWS deployment and operations experience at scale.
  • Practical Kubernetes experience (deploying, debugging, operating).
  • Frontend experience with TypeScript and a modern framework (Aurelia/React/Angular).
  • Strong security grounding, including OWASP Top 10.
  • Excellent communication, product awareness, and proactive attitude.

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