Advanced Web Application Developer

Senior Fullstack Engineer PositionThis is a senior full-stack engineer position that involves designing, building, and maintaining web applications and APIs. The role requires expertise in both frontend and backend development, with a focus on creating scalable and efficient systems.The ideal candidate will have experience working with modern backend stacks, such as Node.js/TypeScript or Python/FastAPI/Django. They should also be proficient in React and Next.js using TypeScript or JavaScript, and have a strong understanding of RESTful API design and implementation.In addition to technical skills, the candidate should have excellent communication and collaboration skills, with the ability to work effectively with cross-functional teams.Key ResponsibilitiesDesign and Development: Design and develop user-facing features across backend and frontend, owning requirements from spec to production rollout.APIs and Backend Services: Implement and maintain RESTful services, design clean request/response contracts, handle auth (OAuth2/OIDC/JWT), rate limiting, idempotency, validation, and auditing.Frontend Development and SDKs: Build responsive, accessible UIs using React/Next.js + TypeScript, design and maintain a frontend SDK (hooks, components, and utilities) that product teams can use to integrate with backend APIs and data services.Data-Aware Design: Work with product and data teams to design schemas and models that support both product workflows and analytics, understand how data will be queried and reported on.Integration with Data Pipelines: Collaborate with data engineers to consume and expose curated datasets, design APIs and services that sit on top of warehouses/lakes and operational databases.Infrastructure and DevOps: Use Terraform or similar IaC to provision and manage app infrastructure, automate build/test/deploy with CI/CD, write solid shell scripts for glue/ops tasks.Observability and Reliability: Instrument structured logs, metrics, and traces across services and UIs, define alert policies and on-call runbooks, help track SLOs and drive root-cause prevention.Security Basics: Apply least-privilege access, secrets management, and encryption in transit/at rest, support secure-by-default patterns in API, SDK, and UI design.Quality and Tests: Write unit, integration, and end-to-end tests (for both backend and frontend), contribute to contract tests and data-quality checks where the app touches data pipelines.Collaboration and Documentation: Communicate clearly in writing and in person, produce concise docs (API specs, SDK docs, data contracts, feature runbooks, UI flows), work closely with product/engineering/analytics.Required Skills and QualificationsCore Engineering Experience: 5+ years building and operating web applications or SaaS products as a full-stack or backend engineer.Backend: Strong experience with at least one modern backend stack (e.g., Node.js/TypeScript, Python/FastAPI/Django, or similar).Frontend: Proficiency with React and Next.js using TypeScript or JavaScript, experience building reusable UI components and hooks, handling routing, data fetching, and basic performance tuning.APIs and Auth: Practical experience with REST patterns, pagination, validation, rate limiting, and OAuth2/OIDC/JWT.Databases and SQL: Proficient in SQL (query tuning, indexing, query plans) and good RDBMS fundamentals (e.g., Postgres, SQL Server, MySQL).Data Engineering Exposure: Experience integrating with data pipelines or warehouses (e.g., consuming tables/views, working with ETL/ELT outputs).Cloud: Strong experience with Azure or AWS and comfort navigating core services and IAM in at least one CSP.IaC and CI/CD: IaC fundamentals (Terraform is good, but Serverless Framework / CloudFormation / CDK, etc. are also acceptable) and CI/CD experience (version control workflows, automated tests, environment promotion, release strategies).Testing Mindset: Habit of writing tests for backend and frontend code, comfortable with fixtures/test data and running tests in CI.Communication: Clear, concise writing and verbal communication, comfortable in async chat and live sessions.AI Tooling: Ready to use AI tools like Claude Code and/or GitHub Copilot from day one to accelerate work - while exercising judgment, understanding code deeply, and writing your own tests.BenefitsCompetitive Compensation: Competitive compensation based on experience.Flexible Schedule: Flexible schedule with overlap for key meetings across time zones.Remote Work: Remote work option with available virtual collaboration and on-call windows as agreed.How to ApplyPlease share:Resume/CV highlighting full-stack work (backend + frontend), SDK or library work, and any notable data/analytics or DevOps/IaC experience.Brief note about a recent feature, SDK, or system you shipped: requirements, your role, tech stack (frontend + backend + data), validation/tests, deployment/ops, outcome.Links to code samples or design docs (if available and shareable).