">Senior Full-Stack Engineer: Python / Angular

5-8 Years Navi Mumbai

- Angular
- CI/CD
- AWS
- AI
- Python/GO

Skills Required

Backend Core (Python / Go)

Proficiency in Python 3.11+ and Object-Oriented programming

Advanced knowledge of FastAPI

Advanced knowledge of API security, authentication and authorization

Experience developing RESTful web APIs and real-time WebSocket services

Familiarity with background job, queue, and task scheduling frameworks: APScheduler and AWS SQS ( boto3 )

Advanced knowledge of data structures and algorithms with attention to time/space complexity

AI / LLM Integration

Experience integrating LLMs via the OpenAI SDK and prompt orchestration, tools/agents, and token budgeting

Familiarity with the Model Context Protocol (MCP) SDK for tool/agent integration

Awareness of speech/audio tooling (STT/TTS) as used by the assistant services is a plus

Database Caching

Advanced knowledge of SQL and PostgreSQL

Experience with database performance tuning, query optimization, and connection-pool sizing

Proficiency with Redis for caching, session/state storage, and ephemeral coordination

Distributed Systems Architecture

Understanding of fundamental design principles behind scalable, high-performing applications and how they fit into a larger microservices/distributed system

Understanding of multi-tenant architecture tenant isolation, data segregation, and shared-infrastructure patterns

Understanding of asynchronous and event-driven processing, publish/subscribe, at-least-once delivery, dead-letter handling, idempotency, and eventual consistency

Familiarity with resilience patterns circuit breakers, retries with back-off, and graceful degradation across service boundaries

Angular Frontend

Lead the design, development, and maintenance of scalable, high-performance UIs using Angular 21+ and TypeScript 5.9+, leveraging standalone components, the up-to-date control-flow syntax and Signals-based reactivity

Mastery of HTML5, CSS3, JavaScript, and TypeScript (ES6+)

Advanced knowledge of NgRx and Deep command of RxJS

Expert understanding of Angular change detection (OnPush), the modern esbuild-based @angular/build:application builder, lazy loading, and bundle analysis

Strong command of Node.js and npm dependency/build tooling, including authoring and maintaining shared in-house component/utility libraries

Apply Angular architectural best practices LIFT principles, Smart/Dumb (Container/Presentational) components, the Fa ade pattern, route guards, resolvers, and typed HttpClient services with HTTP interceptors (auth token attachment, error handling, retry)

Experience with real-time and media (Agora RTC/RTM SDKs socket.io-client (and HLS playback ( hls.js ) for session replay

Proficiency with the platform UI toolkit Bootstrap 5

Advanced knowledge of frontend authentication as well as custom JWT/cookie session flows (bearer + OTP),



with secure token handling

Proficiency writing unit tests with Karma/Jasmine

Security-first frontend development anticipate and mitigate common vulnerabilities (XSS, CSRF, insecure token storage, dependency CVEs), leveraging Angular sanitization and CSP

Comfortable maintaining and progressively modernizing a legacy Angular 15 codebase (Bootstrap/jQuery, webpack builder) alongside the current Angular 21 apps

Infrastructure DevOps

Experience with CI/CD via Bitbucket Pipelines and artifact management

Familiarity with AWS services: S3, SQS, SES, STS and similar

Familiarity with monitoring/observability tooling (Splunk experience a plus)

Familiarity with security scans, penetration tests, and vulnerability remediation

Collaboration Tooling

Familiarity with the Atlassian suite: Jira, Confluence, Bitbucket

Experience with Git branching strategies, pull-request workflows, and code review practices

Experience working in remote and async-first collaboration environments

Experience Requirements

5+ years of experience in software engineering

3+ years of experience in a SaaS organization

Proven experience building production Angular applications (recent major versions strongly preferred) and Python/FastAPI backend services

Experience with real-time systems (WebSockets and/or WebRTC/Agora) in production

Experience with event-driven architectures using message brokers and/or cloud queues (SQS)

Experience integrating LLM/RAG capabilities into production applications is a strong plus

Experience with SOC 2 or similar compliance frameworks

Experience working remotely with distributed teams across timezones

Exposure to native mobile (Kotlin/Android or Swift/iOS) that consumes these APIs is a nice-to-have

Tasks Responsibilities

Backend Services Ownership

Design, build, and maintain efficient, reusable, reliable, and scalable FastAPI services (udesk-service and the AI assistant services) REST + WebSocket APIs backed by PostgreSQL and Redis

Own and evolve the APIs supporting the Angular web clients and the mobile layer contract design, versioning, and backward compatibility

Build and maintain background jobs, schedulers, batch/cron tasks, and event consumers/publishers across RabbitMQ and SQS

Maintain and extend the Go Agora microservice (token issuance and cloud recording to S3)

Uphold multi-tenant architecture principles and tenant-scoped data access across all backend work

Identify performance bottlenecks and develop solutions in a high-traffic multi-tenant SaaS environment

AI / Assistant Layer





Build and maintain LLM-powered features LangChain/OpenAI orchestration, MCP tool integrations, and RAG pipelines over pgvector/FAISS

Own embedding, retrieval, and prompt strategies; monitor quality, latency, and token cost

Integrate speech and third-party AI services (STT/TTS, transcription) where the product requires

Angular Web Clients Full Ownership

Own the Angular 21 applications (udesk internal platform and the uweb participant/moderator client) frontend architecture, NgRx state design, component development, and maintenance

Build real-time experiences live moderated Agora video sessions, socket.io presence/chat, and HLS session replay

Design and build new features and enhancements as the business requires, including the ongoing NgModule standalone migration

Maintain and progressively modernize the legacy Angular 15 app (curious-io)

Build and maintain shared npm component/utility libraries used across the frontend team

Drive frontend performance through lazy loading, bundle analysis, and change-detection optimization; enforce lint, coverage, and bundle-size gates in CI

Architecture Design

Translate business requirements into full-stack solutions spanning FastAPI/Go backends and Angular frontends

Create design documents from software requirements and maintain architecture documentation

Apply scalability and resilience methodologies (caching, queuing, circuit breaking) in a consistent and robust manner

Define and evolve full-stack engineering standards (API contracts, state boundaries, component patterns) as the team scales

Security Compliance

Own authentication/authorization integration end-to-end Keycloak OIDC and custom JWT/cookie flows across services and clients

Identify and remediate common frontend and API vulnerabilities within defined SLAs

Participate in quarterly SOC 2 compliance activities including static, dynamic, and 3rd-party library scans

Apply security-first development practices and dependency hygiene across the stack

Incident Response

Support incident response and troubleshooting for enterprise clients within defined SLAs

Use structured logs for diagnosis and post-incident review

Identify root causes and implement permanent fixes for production issues across backend and frontend

Team Collaboration

Collaborate closely with the US-based oversight engineer, the technical architect, and peer engineers

Participate in code reviews across backend and frontend codebases and establish code-quality standards

Mentor and guide mid-level engineers as the India team scales

Work effectively in a remote, async-first environment across timezones

Disclaimer : This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.

📌 Senior Full-Stack Engineer: Python / Angular (Maharashtra)
🏢 Quarks Technosoft
📍 Maharashtra