Fullstack Developer at Appiness Interactive Pvt. Ltd. · Bengaluru (Bangalore) · 4 - 10 years · ₹6L - ₹12L / yr · Bootstrapped · Posted 16 Jan 2026

Location : Bengaluru, India
Type : Full-time
Experience :4-7 Years
Mode :Hybrid
The Role
We're looking for a Full Stack Engineer who thrives on building high-performance applications at scale. You'll work across our entire stack—from optimizing PostgreSQL queries on 140M+ records to crafting intuitive React interfaces. This is a high-impact role where your code directly influences how sales teams discover and engage with prospects worldwide.
What You'll Do
- Build and optimize REST APIs using Django REST Framework handling millions of records
- Design and implement complex database queries, indexes, and caching strategies for PostgreSQL
- Develop responsive, high-performance front-end interfaces with Next.js and React
- Implement Redis caching layers and optimize query performance for sub-second response times
- Design and implement smart search/filter systems with complex logic
- Collaborate on data pipeline architecture for processing large datasets
- Write clean, testable code with comprehensive unit and integration tests
- Participate in code reviews, architecture discussions, and technical planning
Required Skills
- 4-7 years of professional experience in full stack development
- Strong proficiency in Python and Django/Django REST Framework
- Expert-level PostgreSQL knowledge: query optimization, indexing, EXPLAIN ANALYZE, partitioning
- Solid experience with Next.js, React, and modern JavaScript/TypeScript
- Experience with state management (Zustand, Redux, or similar)
- Working knowledge of Redis for caching and session management
- Familiarity with AWS services (RDS, EC2, S3, CloudFront)
- Understanding of RESTful API design principles and best practices
- Experience with Git, CI/CD pipelines, and agile development workflows
Nice to Have
- Experience with Elasticsearch for full-text search at scale
- Knowledge of data scraping, ETL pipelines, or data enrichment
- Experience with Celery for async task processing
- Familiarity with Tailwind CSS and modern UI/UX practices
- Previous work on B2B SaaS or data-intensive applications
- Understanding of security best practices and anti-scraping measures
Our Tech Stack
Backend
Python, Django REST Framework
Frontend
Next.js, React, Zustand, Tailwind CSS
Database
PostgreSQL 17, Redis
Infrastructure
AWS (RDS, EC2, S3, CloudFront), Docker
Tools
GitHub, pgBouncer
Why Join Us
- Work on a product processing 140M+ records—real scale, real challenges
- Direct impact on product direction and technical decisions
- Modern tech stack with room to experiment and innovate
- Collaborative team environment with a focus on growth
- Competitive compensation and flexible hybrid work model

About Appiness Interactive Pvt. Ltd.
About
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- Develop and maintain web applications using Python and Django.
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We are looking for a skilled Full Stack Developer with 3+ years of experience in Python and React.js to join our engineering team. The ideal candidate should have strong experience building scalable web applications, developing backend APIs, and creating responsive frontend interfaces.
Key Responsibilities
- Develop and maintain full-stack web applications using Python and React.js.
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Senior Software Engineer I (Full Stack) – OKRs
Team: OKRs, Product Development
About the Role
Join Planview's Product Development team as a Senior Software Engineer I on the OKRs team. You will design, build, and evolve web applications using Python on the backend and React on the frontend, with a primary focus on backend (roughly 70% backend / 30% frontend).
You will own features from concept through deployment, contribute to technical strategy, and help build secure, scalable, and maintainable products. Working closely with Product, Design, and QA, you will also raise engineering quality through thoughtful code reviews, strong development practices, and mentorship.
What You'll Do
- Design and develop modern web applications using Python and React.
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- Lead technical design discussions, create architecture documents, and drive decisions on scalability, security, performance, and maintainability.
- Own features end to end, from discovery and technical design through development, testing, deployment, and ongoing support.
- Collaborate with Product, Design, QA, and other engineering teams to deliver high-quality customer outcomes.
- Conduct code reviews, promote engineering best practices, and mentor mid-level and junior engineers.
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- Build and maintain CI/CD pipelines and contribute to cloud infrastructure, deployment automation, and observability.
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What You'll Bring
Required
- 9–11 years of experience building and maintaining production-grade web applications, with strong expertise in Python (backend) and hands-on experience with React (frontend).
- Strong proficiency in Python and experience with Django, Flask, or FastAPI.
- Solid understanding of async programming, background job processing (e.g., Celery, RQ), API design, database design, and scalable backend architecture.
- Strong system design skills: ability to design scalable, reliable, and maintainable systems, make sound technical trade-offs, and translate business requirements into robust designs.
- Experience with React, including Hooks, Context, and state/data management using Redux, Zustand, or React Query.
- Proficiency in JavaScript (ES6+), TypeScript, HTML5, and CSS3.
- Strong database fundamentals, including schema design, indexing, and query optimization with PostgreSQL and/or MySQL; experience with NoSQL technologies such as MongoDB and Redis.
- Hands-on experience with CI/CD, Git workflows, and automated testing (Jest and React Testing Library on the frontend, PyTest on the backend).
- Practical knowledge of application security, including OAuth, JWT, and OWASP principles.
- Strong debugging, performance optimization, and code quality skills, with the ability to independently own technical problems.
- Clear communication skills, with the ability to influence design decisions and work effectively across teams.
Nice to Have
- Experience with AWS.
- Experience with Next.js, server-side rendering, or micro-frontend architectures.
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- Knowledge of GraphQL.
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- Knowledge of AI/ML integration or Python data pipelines.
- Experience in SaaS, fintech, or enterprise product environments.
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What Success Looks Like
- You deliver secure, reliable, and maintainable features that create measurable value for the OKRs product.
- You own both the frontend and backend of the OKRs product and make sound technical decisions, documenting the architecture and trade-offs behind them.
- You improve application performance, developer productivity, and operational reliability over time.
- You contribute to a culture of quality, collaboration, mentoring, and continuous improvement.
- You help the team respond effectively to production issues and prevent recurring problems through strong root-cause analysis.
Why Join Us
- Freedom to modernize and innovate
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Join Planview
If you are a hands-on full-stack engineer who enjoys solving complex problems, shaping technical direction, and helping teams build better software, we encourage you to apply.
Full-Stack Engineer (Backend Heavy)
Experience: 4–6 Years | Function: Engineering — Product | Location: On-site
About Us
We’re building the next generation of AI-powered business software, and we’re looking for people who want to shape that future with us. With Lumen, we’re reimagining how users interact with CRM — moving beyond screens, menus and dashboards to an intelligent interface where users can simply ask AI to take actions, retrieve knowledge, generate insights and get work done. With Agent Studio, we’re enabling businesses to build, test and deploy their own AI agents for real-world workflows. And with Invorto, we’re bringing AI to voice, allowing businesses to create intelligent voice agents tailored to their customer and operational use cases.
What makes this especially exciting is the stage and scale of the opportunity. You’ll get to work on genuinely hard problems across LLMs, agents, reasoning, orchestration, voice AI, evaluation, reliability and enterprise security — not as isolated experiments, but as products used in real business workflows. You’ll have the opportunity to build zero-to-one, own meaningful parts of the product end-to-end, work closely with customers, experiment rapidly, and see your work reach production at scale.
Why join now? Because the playbook for enterprise AI is still being written. You won’t just be implementing someone else’s roadmap — you’ll help define the product, architecture and experiences that become that playbook. Expect high ownership, fast iteration, hard technical and product problems, direct customer impact, and the chance to build AI systems that have to work reliably in the real world — not just in a demo.
About the Role
We are looking for a Full-Stack Engineer with a strong backend bias to help build end-to-end product experiences across Lumen and Agent Studio. You will own features from database and API design through to the front-end experience, working closely with product and design to ship AI-powered experiences that real business users depend on every day.
What You’ll Do
Design and build backend services and APIs in Python that power core product and AI-agent features.
Build front-end interfaces and experiences that let users interact naturally with AI agents, insights and CRM workflows.
Own features end-to-end — from data modeling and backend logic to UI implementation, testing and release.
Work with product managers and designers to translate requirements into well-architected, scalable systems.
Integrate with LLM-based and agentic backend systems built by the AI/ML engineering team.
Optimize application performance, reliability and code quality across the stack.
Engage directly with customers and customer success teams to understand workflows, triage issues and inform roadmap decisions.
What We’re Looking For
4–6 years of professional full-stack engineering experience, with a clear backend-heavy skill set in Python.
Strong experience designing and building REST/GraphQL APIs, data models and scalable backend services.
Working proficiency with modern front-end frameworks (e.g., React) to build and integrate user-facing features.
Experience with relational/NoSQL databases, caching and cloud infrastructure.
Ability to move fast in a zero-to-one environment while maintaining code quality and system reliability.
Strong communication skills — this is a customer-facing role, and you will be expected to clearly articulate technical concepts, decisions and trade-offs to both technical and non-technical stakeholders, including customers.
Good to Have
Experience building features on top of LLM or AI-agent backends.
Prior experience in CRM, SaaS or enterprise business applications.
Exposure to real-time or voice-based product interfaces.
Role : Senior Full Stack Engineer (Frontend Focus)
Location : Hyderabad/Bangalore/Gurgaon/Mumbai
Role Summary
We're looking for a **Senior Full Stack Engineer (Frontend Focus)** to build modern, AI-powered enterprise applications. You'll primarily focus on creating scalable, high-performance frontend experiences using React and Next.js, while contributing to backend services, APIs, and AI integrations where needed. You'll work closely with Product, Design, and AI teams to build intuitive, performant, and production-ready applications.
Minimum Qualifications
* 3–7 years of software engineering experience.
* Strong experience with React, Next.js, TypeScript, JavaScript, HTML, and CSS.
* Experience building and shipping production-grade frontend applications, including enterprise dashboards and data-intensive applications.
* Strong understanding of frontend architecture, state management (Redux, Zustand, Context API, or similar), rendering lifecycle, and performance optimization, including code splitting, lazy loading, bundle optimization, caching strategies, and Core Web Vitals.
* Experience building complex UI experiences using modern frontend technologies, including data visualization, Canvas, WebGL, Service Workers, and Web Workers.
* Experience building and integrating REST APIs and backend services using Node.js.
Preferred Qualifications
* Experience building AI-powered applications or AI agents using LangChain, LlamaIndex, CrewAI, or similar AI frameworks.
* Experience with vector databases and Retrieval-Augmented Generation (RAG) applications.
* Experience with DevOps practices and cloud platforms such as AWS, Azure, or GCP.
* Experience with Docker and Kubernetes.
* Experience building reusable component libraries, design systems, or micro-frontend architectures.

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* Build reusable frontend components using React.js.
* Develop scalable backend APIs and services using Node.js.
* Integrate third-party services and payment gateways such as Stripe.
* Build RESTful APIs and integrate with modern databases.
* Optimize applications for maximum speed, scalability, and SEO.
* Collaborate with designers to translate Figma/UI designs into pixel-perfect interfaces.
* Implement authentication, authorization, and security best practices.
* Debug production issues and improve application performance.
* Participate in code reviews and mentor junior developers.
* Work within Agile/Scrum development processes.
Full-Stack Engineer (AI-Native) | 2-4 Years Experience
About the Role
We're hiring a Full-Stack Engineer who is equally comfortable building a polished Next.js interface and a reliable NestJS API behind it. You'll build customer-facing products, including AI-powered features like chat interfaces, streaming responses, and agent-driven workflows. You'll own features end to end, from database schema to UI, and use AI tools daily to ship faster without lowering the quality bar.
What You'll Do
Frontend
- Build responsive, accessible, high-performance UIs with React, Next.js (App Router, RSC) and TypeScript
- Build AI-facing interfaces: streaming chat UIs, tool-call/agent-status displays, and loading, error, and retry states for non-deterministic outputs
- Monitor web vitals and fix performance regressions
Backend
- Design and build scalable REST/GraphQL APIs and services with Node.js and NestJS
- Model, query, and optimize data in PostgreSQL (schema design, indexing, migrations) using an ORM like Prisma or Drizzle
- Implement auth, authorization, validation, background jobs, queues, and caching (Redis)
- Integrate LLM APIs (OpenAI, Anthropic, Gemini), including streaming (SSE/WebSockets), tool calling, retries, rate limits, and cost/latency control
AI-Assisted Engineering
- Use AI coding tools (Cursor, Claude Code, Copilot, etc.) for scaffolding, refactoring, debugging, and test writing
- Write and maintain project context for AI tools (rules files, AGENTS.md/CLAUDE.md, reusable prompts) so the whole team gets better output
- Review AI-generated code critically for correctness, security, performance, and maintainability
Team and Delivery
- Write unit, integration, and E2E tests, using AI to speed them up rather than skip them
- Take part in code reviews, sprint planning, architecture discussions, and on-call/incident follow-ups
- Document APIs, decisions, and runbooks clearly
Must-Have (Non-Negotiable)
Frontend
- Strong JavaScript (ES6+) and TypeScript
- React (hooks, state management, rendering behavior) and Next.js (App Router, SSR/SSG/RSC)
- HTML/CSS fundamentals, Tailwind or similar, responsive design, and accessibility basics
Backend
- Production experience with Node.js and a structured framework (NestJS preferred; Express/Fastify with good architecture is fine)
- Solid PostgreSQL skills: relational modeling, joins, indexes, transactions, query optimization
- API design: REST principles, pagination, versioning, error handling, input validation
- Authentication and authorization (JWT, OAuth2, sessions, RBAC)
Engineering Fundamentals
- Git, PR workflows, and code review habits
- Testing across layers (Jest/Vitest, React Testing Library, API/integration tests; Playwright/Cypress is a plus)
- Basic security awareness (OWASP top 10, secrets management, input sanitization)
AI-Assisted Development
- Daily, hands-on use of at least one AI coding tool (Cursor, Claude Code, Copilot, Windsurf, or similar)
- Ability to write clear prompts, give useful context, and break big tasks into steps an AI can handle
- Habit of reviewing, testing, and understanding AI output before committing it
- Basic understanding of how LLMs work: context windows, hallucinations, token cost, and why outputs vary
Nice to Have
- Redis, message queues (BullMQ, SQS, Kafka), or event-driven architecture
- Monorepo tooling (Turborepo, pnpm workspaces, Nx)
- Design system or component library work (shadcn/ui, Radix, Storybook)
- tRPC, GraphQL, or OpenAPI-driven type-safe clients
- Multi-tenant SaaS, payments (Stripe/Razorpay), or real-time features
- Open-source contributions, a side project, or shipped AI features you can demo
What We Expect From You
- Ownership: take a feature from schema to UI to production, and flag risks early
- Judgment over speed: AI makes you faster, and you're still accountable for every line you ship
- Security awareness: no secrets in prompts, no blind copy-paste of AI code, and sensitive data stays out of third-party tools
- Systems thinking: consider scale, failure modes, and cost, not just the happy path
- Learning speed: the AI tooling landscape changes every few months, and you keep up and share what works
- Clear communication: PRs, docs, and async updates that others can follow
If interested for this job pls contact us on this WhatsApp number, nine three one six one two zero one three two
We are seeking a highly skilled Full-stack Developer to join our dynamic
team as a Delivery Module Lead. The ideal candidate will possess strong expertise in Python
and front-end technologies, enabling them to design, develop, and maintain robust web
applications. This role requires a proactive individual who can collaborate effectively with
cross-functional teams to deliver high-quality software solutions that meet business needs.
Responsibilities:
∙Design, develop, and maintain scalable web applications using Python and front-end
technologies.
∙Collaborate with product managers, designers, and other developers to define project
requirements and deliver solutions that meet user needs.
∙Implement responsive user interfaces and ensure optimal performance across various
devices and browsers.
∙Write clean, maintainable, and efficient code while adhering to best practices and
coding standards.
∙Conduct code reviews and provide constructive feedback to team members to enhance
code quality.
∙Debug and troubleshoot issues in existing applications, providing timely resolutions.
∙Stay updated with emerging technologies and industry trends to continuously improve
development processes.
∙Participate in Agile development processes, including sprint planning, daily stand-
ups, and retrospectives.
Mandatory Skills:
∙Proficient in Python programming language.
∙Strong knowledge of front-end technologies such as HTML, CSS, and JavaScript.
∙Experience with front-end frameworks like React, Angular, or Vue.js.
∙Familiarity with back-end frameworks such as Django or Flask.
∙Understanding of RESTful APIs and web services.
∙Experience with version control systems, preferably Git.
∙Strong problem-solving skills and attention to detail.
We are seeking talented software developers who are passionate about coding and building & scaling
products. If you love taking on new challenges and have a problem solving mindset to solve problems through
code, you will be a perfect fit for our rockstar engineering team.
Roles and Responsibilities:
● Design and develop backend architectures to support robust, scalable, and secure web applications and
systems with a focus on backend development using Django.
● Design, implement and maintain high quality RESTful APIs to support seamless communication between
frontend, backend and other services.
● Design, implement, and maintain database schemas. Ensure the integrity, performance, and security of
data.
● Ensure the scalability and reliability of our backend infrastructure on AWS. Ensure reliable management of
infrastructure on cloud aiming for 0 downtime of systems.
● Write clean, maintainable, and efficient code, while adhering to best practices and industry standards.
Develop and maintain documentation for our backend systems, APIs, and data models.
● Conduct high quality code reviews and provide feedback to other team members to ensure best practices
are adhered to.
● Take ownership of the development, testing, and deployment of web applications. Break down high-level
business problems into smaller chunks and build systems.
● Work closely with the frontend development team, product managers, and designers to plan new features
and optimize existing ones.
● Constantly aim to improve performance and optimize systems by identifying bottlenecks and resolving
them for increased efficiency.
● Stay up-to-date with the latest technologies such as LLMs, and implement them as and when required
Skills and Qualifications:
● Bachelor's degree in Computer Science, Computer Engineering or a related field.
● 4+ years of experience in full-stack web development, with a focus on backend development.
● Strong proficiency in Python and Django, including experience with Django Rest Framework.
● Experience working with SQL/PostgreSQL databases, including schema design, querying, and
optimization.
● Proficiency in AWS services such as EC2, RDS, S3, and Lambda.
● Familiarity of integrations with third party services and open source frameworks
● Strong understanding of data structures, algorithms, and software design patterns.
● Experience with containerization and orchestration technologies such as Docker and Kubernetes is a plus.
● Familiarity with LLM frameworks such as Langchain, OpenAI, Anthropic, LLaMa is a plus.
● Strong problem-solving skills and ability to work in a fast-paced environment.
● Excellent communication and collaboration skills.










