Job Description
We are looking for a
Backend Engineer
with strong Python development experience to build and enhance scalable backend services and
AI-powered applications, including LLM and chatbot solutions
. You will work closely with product, AI/ML and engineering teams to develop APIs, integrate AI models and deliver reliable production-grade applications.
Working Hours: Mon-Fri
Working Location: Central
Job Type: Contract
Salary Package: Up to $10,000 (basic) + AWS
Key Responsibilities
Design, develop and maintain
backend applications and services using Python
.
Build scalable and secure
RESTful APIs / backend services
to support web, mobile and AI applications.
Develop and enhance
LLM-powered applications and conversational chatbot solutions
.
Integrate applications with
Large Language Models (LLMs)
and external AI/model APIs.
Implement
Retrieval-Augmented Generation (RAG)
workflows to retrieve relevant enterprise information and improve LLM responses.
Develop data ingestion, document processing, embedding and retrieval workflows for AI applications.
Work with
vector databases/search technologies
to support semantic search and knowledge retrieval.
Implement
prompt engineering, context management and conversation workflows
for chatbot applications.
Integrate backend services with databases, enterprise systems and third-party APIs.
Develop reusable and maintainable backend components following good software engineering practices.
Perform
unit testing, integration testing, debugging and performance optimisation
.
Monitor and troubleshoot application performance and production issues.
Implement appropriate security, authentication, logging and error-handling mechanisms.
Containerise and deploy applications using
Docker and cloud environments
.
Participate in code reviews and contribute to application architecture and technical design.
Collaborate with Product Managers, AI/ML Engineers, frontend developers and other stakeholders throughout the development lifecycle.
Maintain technical documentation and support continuous improvement of development practices.
Requirements
Degree in
Computer Science, Software Engineering, Information Technology
or a related discipline.
Relevant experience in
backend/software development
, with strong hands-on programming experience in
Python
.
Experience with Python backend frameworks such as
FastAPI, Flask or Django
.
Strong understanding of
REST APIs, microservices and backend application architecture
.
Hands-on experience developing or integrating
LLM, Generative AI or chatbot applications
.
Familiarity with LLM platforms/models such as
OpenAI, Azure OpenAI, Anthropic, Gemini, Llama or equivalent
.
Experience with
RAG, embeddings, semantic search and vector databases
would be highly advantageous.
Familiarity with AI/LLM frameworks such as
LangChain, LlamaIndex or equivalent
would be beneficial.
Experience working with relational and/or NoSQL databases such as
PostgreSQL, MySQL, MongoDB or Redis
.
Good understanding of
Git, CI/CD, Docker and cloud environments
.
Experience with
AWS, Azure or GCP
would be advantageous.
Knowledge of authentication, application security and secure API development.
Strong software engineering fundamentals, including
data structures, testing, debugging and system design
.
Strong analytical and problem-solving skills with the ability to work effectively in cross-functional teams.
Key Technical Skills
Python | FastAPI / Flask / Django | REST API | Backend Development | LLM | Generative AI | Chatbot | RAG | Prompt Engineering | Embeddings | Vector Database | LangChain / LlamaIndex | SQL / NoSQL | Docker | CI/CD | AWS / Azure / GCP
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Elane Yap Theng Yu- R1989397
ScienTec Consulting Pte Ltd - 11C5781