Senior developer – Python Full stack

Job Description The Software Developer is responsible for designing, developing, testing, and maintaining software applications that support business and digital solutions. The role involves working closely with business analysts, architects, QA testers, and product owners to deliver enterprise grade, scalable, and secure applications following defined standards and best practices.

Responsibilities Application Development

• The role would be required to refactor and harden 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.
• Scale and deploy an MVP securely for tens-of-thousands of concurrent users. Rapid pace is a key requisite, using latest AI coding acceleration technology to augment traditional methods.
• Delivering scalable, secure cloud solutions using App Service, Functions, Blob Storage, and Key Vault
• Design, develop, and enhance software applications based on business and technical requirements.
• Write clean, maintainable, and efficient code following coding standards and best practices.
• Develop new features and enhance existing functionality across applications.
• Perform unit testing and support system, integration, and UAT testing activities.

Required Technical Skills Programming & Development

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

Python | Proficient — FastAPI, async patterns (extend

existing async-based backend systems , ensuring scalability and responsiveness)

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, Azure Active Directory.

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/Code Optimisation, 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

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

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, Engineering, or related field.
• 6+ years of hands‑on software development experience. BGV:
• Employment with WSP India is subject to the successful completion of a background verification (“BGV”) check conducted by a third-party agency appointed by WSP India.
• Candidates are advised to ensure that all information provided during the recruitment process — including documents uploaded — is accurate and complete, both to WSP India and its BGV partner”.

About Us WSP is one of the world's leading professional services consulting firms. We are dedicated to our local communities and propelled by international brainpower. We are technical experts and strategic advisors including engineers, technicians, scientists, architects, planners, surveyors and environmental specialists, as well as other design, program and construction management professionals. We design lasting solutions in the Transportation & Infrastructure, Property & Buildings, Earth & Environment, Power & Energy, Resources and Industry sectors, as well as offering strategic advisory services. Our talented people around the globe engineer projects that will help societies grow for lifetimes to come. With approximately

4,000 talented people across 3 locations (Noida, Bengaluru & Mumbai offices) in India and more than

73,000 globally , in 550

offices across 40 countries , we engineer projects that will help societies grow for lifetimes to come. At “WSP” we draw on the diverse skills and capabilities of our employees globally to compete for the most exciting and complex projects across the world and bring the same level of expertise to our local communities. We are proud to be an international collective of innovative thinkers who work on the most complex problems. Unified under one strong brand, we use our local expertise, international reach and global scale to prepare our cities and environments for the future, connect communities and help societies thrive in built and natural ecosystems. True to our guiding principles, our business is built on four cornerstones:

Our People, Our Clients, Our Operational Excellence and Our Expertise. www.wsp.com

We are

• Passionate people doing purposeful and sustainable work that helps shape our communities and the future.
• A collaborative team that thrives on challenges and unconventional thinking.
• A network of experts channeling our curiosity into creating solutions for complex issues. Inspired by diversity, driven by inclusion, we work with passion and purpose.

Working with Us At WSP, you can access our global scale, contribute to landmark projects and connect with the brightest minds in your field to do the best work of your life. You can embrace your curiosity in a culture that celebrates new ideas and diverse perspectives. You can experience a world of opportunity and the chance to shape a career as unique as you.

Our Hybrid Working Module With us, you can operate in a flexible, agile, yet structured work environment and follow a Hybrid Work Model.

• Maximize collaboration.
• Maintain product quality and cultural integrity.
• Balance community, collaboration, opportunity, productivity, and efficiency.

Health, Safety and Wellbeing Our people are our greatest asset, and we prioritize a safe work environment. Health, safety, and wellbeing are integral to our culture, with each of us accountable for fostering a safe workplace through our “Making Health and Safety Personal” initiative. Our Zero Harm Vision drives us to reduce risks through innovative solutions, earning recognition for our global health and safety practices with the prestigious RoSPA Health and Safety Awards for six consecutive years.

Inclusivity and Diversity WSP India is dedicated to fostering a sustainable and inclusive work environment where our greatest strength - Our People -feel valued, respected, and supported. We ensure an unbiased approach in hiring, promotion, and performance evaluation, regardless of age, gender identity, race, religion, sexual orientation, marital status, physical ability, education, social status, or cultural background.

Imagine a better future for you and a better future for us all. Join our close-knit community of over 73,300 talented global professionals dedicated to making a positive impact. Together, we can make a difference in communities both near and far.

With us, you can. Apply today. NOTICE TO THIRD PARTY AGENCIES: WSP does not accept unsolicited resumes from recruiters, employment agencies, or other staffing services. Unsolicited resumes include any resume or hiring document sent to WSP in the absence of a signed Service Agreement where WSP has expressly requested recruitment/staffing services specific to the position at hand. Any unsolicited resumes, including those submitted to hiring managers or other business leaders, will become the property of WSP and WSP will have the right to hire that candidate without reservation – no fee or other compensation will be owed or paid to the recruiter, employment agency, or other staffing service.