OneCard

AI Engineer (LLM)

Job · Full-timeIn OfficeMumbai, Maharashtra0–2 years71K/mo2 openingsImmediate / as per notice period

About this role

OneCard is hiring a AI Engineer (LLM) in Mumbai. This is a full-time, permanent role with real ownership from the first quarter — you will be given work that ships, reviewed by people who know the craft, and the context to understand why it matters. About the role As a AI Engineer (LLM) at…

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Skills you'll use

PythonLLM APIsPrompt DesignRetrieval-Augmented GenerationVector DatabasesEvaluation SetsREST APIsCost & Latency ManagementGitError Analysis

What you'll do

Build features on top of language models and ship them
Design retrieval and grounding so answers can be cited
Build evaluation sets and measure changes against them
Manage token cost, latency and failure modes
Work with product on what the feature should refuse to do
Flag risks and blockers early rather than at the deadline
Keep your tracker and status honest, including when something has slipped

Who can apply

B.E./B.Tech (CSE/IT/ECE), BCA/MCA or B.Sc/M.Sc (Computer Science / IT) from a recognised university
0–2 years of relevant experience — internships, academic projects and personal work all count, and 2026 graduates are welcome
Working knowledge of Python, LLM APIs, Prompt Design
Comfort with Python, LLM APIs and a vector store, and the ability to pick up an unfamiliar tool without waiting to be taught it
The judgement to know when a problem is yours to solve and when it needs escalating — and to escalate with the relevant detail attached.
Attention to detail, ownership and the discipline to document your work
Based in Mumbai, Maharashtra or willing to relocate

Perks & benefits

Paid leave, casual leave and public holidaysFlexible working hours around core collaboration timeModern hardware and the tool licences your role needsInternal knowledge sessions and access to senior reviewersClear, written progression criteria rather than an annual surpriseEmployee referral and performance bonus schemesTeam offsites and regular in-person timeSupport for internal mobility across teams

Interview & selection process

4 rounds — typical selection flow for this role:

1Resume screening and profile shortlisting by the talent acquisition team
2Final discussion covering role expectations, compensation and start date
3Application screening (CV and, where relevant, a portfolio or code sample)
4HR discussion — compensation, notice period, joining date and offer roll-out

About OneCard

OneCard operates in the fintech sector and runs an active team in Mumbai. It is a working employer with real customers and real deadlines — the role advertised here exists because there is work that needs doing, not to fill a headcount plan. Industry and what the company does OneCard works in…

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