Job Description

You will refactor and harden the existing MVP application for multi-tenant SaaS deployment: migration from SQLite to PostgreSQL/SQL, containerised Azure deployment, proper auth/RBAC, CI/CD pipelines, frontend migration from Vanilla JS to Angular, API gateway design, observability, and performance at scale. You are scaling an MVP to work deployable, secure, and fast for tens-of-thousands of concurrent users. Rapid pace is a key requisite, using latest AI coding acceleration technology to augment traditional methods.

Required Skills

Must be highly proficient in English language – spoken and written comms.

Angular | Advanced — component architecture, state management, lazy loading, performance tuning

• NET / C# | Advanced — 5+ years. Enterprise services, Azure Functions, API design
  
  
  

Python | Proficient — FastAPI, async patterns (existing backend you'll work with)

JavaScript / TypeScript | Advanced — ES6+, async patterns, build tooling

Node.js / Express | Advanced — BFF layer, middleware, API gateway patterns

SQL | Advanced — PostgreSQL required. Schema migration, query optimisation, multi-tenant data isolation

Docker / Containers | Advanced — Compose, multi-stage builds, container orchestration

Azure Cloud | Proficient — App Service, Functions, Blob Storage, Key Vault, AAD (AWS/GCP transferable)

CI/CD | Advanced — GitHub Actions or Azure DevOps. Automated testing, staged deployments

Git | Advanced — Branching strategies, rebasing, monorepo or multi-repo workflows

Required Experience

• Minimum 6 years professional software development experience
• Demonstrated body of work — public portfolio, GitHub profile, or equivalent
• Experience scaling a web application from MVP/prototype to production SaaS for thousands of concurrent global users (this is the core of the role)
• Experience with multi-tenant architecture — data isolation, tenant-aware middleware, per-tenant config
• Experience with database migration — schema versioning, zero-downtime migrations, data integrity at scale
• Experience with authentication and authorisation at enterprise level — OAuth2/OIDC, RBAC, SSO integration
• Experience with API design — versioning, rate limiting, pagination, caching strategy
  
  
  

Required: Infrastructure & Operations

• Observability — Structured logging, distributed tracing, APM (Application Insights, Datadog, or equivalent)
• Security — OWASP awareness, secret management, CSP headers, input validation, vulnerability scanning
• Performance — Profiling, load testing, caching strategies (Redis), CDN configuration
• Reliability — Health checks, graceful degradation, retry patterns, circuit breakers
  
  
  

Critical Differentiator: AI-Augmented Development

• Must currently use AI coding assistants in daily work (Github Copilot, Claude Code, Codex, or equivalent)
• Must demonstrate significant speed multiplier (5x+ on typical tasks)
• Must be comfortable with agentic workflows — running multiple AI agents concurrently, delegating subtasks, reviewing and integrating AI-generated code
• You will be live-tested: given a mid-level coding task that traditionally takes 3 weeks, you'll have 60 minutes to complete it using whatever tools you choose
  
  
  

Preferred (Not Required)

• Kubernetes / AKS orchestration experience
• GIS / geospatial data experience (PostGIS, tile servers, Cesium)
• Experience migrating legacy/prototype codebases to production architecture
• Experience in engineering consultancy or infrastructure sector
• Machine learning model serving / inference pipeline experience
  
  
  

What We Offer

• Take a genuinely novel product from MVP to global scale — not maintaining legacy code
• Elite small team — high autonomy, high impact
• AI-first development culture — use the best tools available, measured on output not hours
• Global exposure — WSP operates in 40+ countries
• Competitive compensation (market-dependent, discussed at interview)
  
  
  

Don’t quite meet all the criteria? Apply, and we can see how your experience aligns to this

role and other opportunities within the team.

Imagine a better future for you and a better future for us all.

Join our close-knit community of talented individuals who share your passion for making a

positive impact. Our global team includes more than 69,000 employees, working together to

make a difference in communities both close to home and around the world.

With us, you can. Apply today.