Full Stack Engineer
First seen by Alion on Oct 7, 2026.
Full-Stack Engineer - AI / SaaS
Experience : 3+ years
Location : Bangalore
Employment : Full-time
About the Role :
We're building the next generation of AI-powered software for accounting and finance professionals.
The goal is simple : take real, complex work off accountants' plates through intelligent AI agents and automation.
As a Full-Stack Engineer, you'll build the core product - from backend APIs and data models to React interfaces and production-grade AI workflows. You'll work closely with the founders and product team, move quickly, and take ownership from problem definition through production.
This is not a role where you simply pick up tickets or stitch together AI APIs.
We're looking for someone who can understand the problem, make sound technical decisions, challenge requirements when needed, and own what they ship.
What You'll Build :
- AI agents and multi-step automation workflows that perform real accounting and finance tasks
- Production-grade backend services using Django, Django REST Framework and PostgreSQL
- React-based product experiences for B2B users
- AI workflows using LangChain, LangGraph, OpenAI / Anthropic APIs and RAG
- Document-processing pipelines involving OCR, extraction, validation and structured outputs
- Asynchronous workflows using Celery and Redis
- Multi-tenant systems with RBAC, audit trails and secure data access
- APIs and integrations that connect AI workflows with the rest of the product
- Reliable systems that handle complex, multi-step workflows and edge cases
What We're Looking For :
Strong Full-Stack Fundamentals :
- 3+ years building and shipping production software
- Strong hands-on experience with: Python, Django / Django REST Framework, ReactJS, PostgreSQL, REST APIs, Celery + Redis
- Strong understanding of API design, database modelling, asynchronous processing and error handling
- Experience writing production-quality tests, particularly around complex business logic and edge cases
AI Engineering Experience :
- You should have hands-on experience building AI-powered features beyond simple API integrations.
- Strong experience with one or more of the following : LangChain / LangGraph, OpenAI / Anthropic APIs, RAG pipelines, Tool-calling and function-calling agents, Structured outputs, Multi-step agent workflows, LLM evaluation and reliability, Document understanding / extraction, AI-powered automation pipelines
- You should be comfortable taking an AI workflow from prototype to production, including handling failures, edge cases, retries, validation and observability.
Product & Architecture :
- Experience building B2B SaaS products is highly valuable, particularly systems involving: Multi-tenant architectures, RBAC and permissions, Audit trails, Complex relational data models, Workflow-driven applications, External API integrations
- Experience with tax, accounting, finance, payments or financial document processing is a strong plus.
Nice to Have :
- Document OCR / intelligent document processing
- AWS or GCP
- Docker
- Unstructured.io
- Temporal / Prefect
- Experience working with financial or accounting documents
- Experience building internal automation or AI-first products
How We Work :
- We're a lean engineering team where engineers are expected to own outcomes, not just tickets.
- You'll work directly with founders and PMs, understand the business problem behind the requirement, and make technical decisions that balance speed, quality and long-term maintainability.
- We move quickly and use modern AI coding tools extensively - but AI-generated code is not a substitute for engineering judgment.
- If you ship something, you should understand: Why it works, Where it can fail, How it behaves at scale, How you would debug it, What trade-offs you made
- We have a strong bias toward shipping fast without compromising engineering ownership.
Why Join :
- Build a product where AI is central to the product, not a bolt-on feature
- Work directly with founders and product leadership
- Own features end-to-end from architecture to production
- Solve challenging problems involving AI agents, automation and financial data
- Ship to real users and see the impact of your work quickly
- Join a small, high-ownership engineering team with significant scope to shape the product
The Ideal Candidate :
- You're a strong full-stack engineer who has already shipped production software and now wants to work much closer to AI, agents and intelligent automation.
- You don't need to know every tool in the stack.
- What matters is that you can build, reason, debug and own production systems - and that you're excited about using AI to fundamentally change how complex professional work gets done.
- If you enjoy solving hard problems, moving quickly and building things that people actually use, we'd like to hear from you.
Skills
Full Stack, AI Integration, PostgreSQL, Django, Python, Redis, React.js, AWS, SaaS