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AWS Backend Developer Cloud Engineer - Software DevOps

Senior Software Developer; TypeScript​/AWS​/C#

Job in Johannesburg, 2000, South Africa
Listing for: Golden Rule
Full Time position
Listed on 2026-07-20
Job specializations:
  • Software Development
    AWS, Backend Developer, Cloud Engineer - Software, DevOps
Job Description & How to Apply Below
Position: Senior Software Developer (Type Script / AWS / C#)
The Role

Job Description:

We’re modernizing into a vendor-independent platform covering the end-to-end customer journey.

You’ll build secure, observable, scalable services and clean front ends, contribute to architecture, and raise the engineering bar (standards, patterns, CI/CD, code quality). You’ll work across C#/.NET, Type Script (Node + React/Next.js), and AWS—with emphasis on event-driven microservices, APIfirst design, and sales/dialer integration via Amazon Connect.

Engineering and Architecture

  • Design and implement .NET 8 and js microservices with clean architecture, CQRS/MediatR
    , EF Core (MSSQL/Postgres), and Open API-first contracts.
  • Build React/Next.js apps (Customer portal, Ops Console, Pricing Console) with strong state management (Zustand/Redux), Tan Stack Query, and component libraries with design tokens
    .
  • Implement event-driven patterns (Outbox, Saga) using AWS Event Bridge
    , SNS/SQS
    , and idempotent consumers.
  • Create robust APIs (REST; GraphQL a plus), secure with OAuth2/OIDC and JWT
    , integrate with identity (Cognito/Entra /Keycloak).
  • Integrate Amazon Connect (IVR, CTI, call recording, agent states, dispositions) with CRM/Sales workflows and near-real-time analytics
    .
  • Deliver infra-as-code (AWS CDK/Terraform), Git Hub Actions pipelines, and trunk-based development with feature flags and blue/green or canary deployments.
  • Apply observability by design
    : structured logs (Serilog), metrics (Prometheus/Cloud Watch), tracing (Open Telemetry), dashboards, and actionable alerts (SLIs/SLOs).
  • Optimize cost, reliability, and performance (caching, connection pooling, async messaging, retries/backoff, circuit breakers).
  • Contribute to and lead Architecture Decision Records (ADRs); evolve the domain model and ERD across Lead, Product, Pricing, Billing, Compliance, Support.

    • Quality, Security and Governance

  • Uphold SOLID
    , 12-factor
    , and OWASP ASVS
    ; threat-model new features.
  • Maintain code quality (Sonar Qube),
    unit/integration/contract/e2e tests (xUnit/MS Test, NUnit, Jest/Vitest, Playwright), and test data management
    .
  • Ensure data protection (PII encryption, KMS),
    least privilege IAM
    , parameterized queries
    , and secrets management (AWS Secrets Manager).
  • Champion code reviews
    , pairing, and continuous improvement; mentor engineers; propose and drive engineering OKRs
    .

    • Skills and Experience

    Qualifications:

  • Bachelor’s degree in computer science, software development, or related field.
  • Experience with CI/CD pipelines and Dev Ops practices.
  • Exposure to Agile/Scrum methodologies.
  • 10+ Years of Software Development Experience.

    • Must-Have Skills

    Backend (.NET & Node)

  • C# / .NET 7/8; ASP.NET Core Web API, MediatR (CQRS), Fluent Validation, EF Core (code-first & migrations), Automapper.
  • Messaging & Events:
    Event Bridge, SNS/SQS, Outbox (Postgres preferred), idempotency keys, eventual consistency patterns.
  • Data: MSSQL & Postgres, schema design, indexing, transactions, isolation levels; basic Redis caching.
  • API-first:
    OpenAPI/Swagger, API versioning, problem+json, pagination/filters, rate limiting.

    • Frontend (Type Script & React)

  • Type Script (advanced types, generics), React/Next.js (App Router), Tan Stack Query, Zustand/Redux, Form libs (React Hook Form), component libraries (MUI/Chakra/shadcn).
  • UI engineering: performance profiling, accessibility (WCAG), responsiveness, error boundaries, Suspense.

    • AWS and Dev Ops

  • Core AWS: IAM, VPC, API Gateway/ALB, Lambda, ECS/Fargate, Cloud Watch, S3, Cloud Front, RDS/Aurora, DynamoDB (nice), Elasti Cache.
  • Pipelines:
    Git Hub Actions, semantic versioning, conventional commits, Sonar Qube gates, SBOMs (CycloneDX), artifact promotion.
  • IaC: CDK or Terraform; multi-account/multi-env; secrets and parameter stores.
  • AWS Cloud knowledge - lamdas, EC2 intances, API gateway, DynamoDB, s3, route 53, SES, parameter store, cloud formation etc.
  • PostgreSQL (brain Timescale DB) - Database design, loadbalancers, connection pooling, read/write replicas.

    • Security and Observability

  • OAuth2/OIDC/JWT, Cognito, secure cookie strategy, CSRF mitigation for web flows.
  • Serilog, Open Telemetry, dashboards/alerts; runbooks and readiness probes.
    • Position Requirements
    10+ Years work experience
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