Mid / senior-level full stack developer
UpworkSGNot specifiedexpertScore: 71
LangChainPythonAI DevelopmentNext.jsTypeScriptDjangoAmazon S3langsmithUmbracoR
Responsibilities
You will be working closely with our senior quantitative analyst to optimise the existing code for our internal and client-facing dashboards.
You will:
Develop our internal and client-facing dashboards (backend and frontend)
Ensure production reliability and data integrity
Document logic clearly and maintain version discipline
Contribute to architecture decisions and system scalability
Clean and optimise code, debugging
Research and evaluate LLM models most suitable for our purposes (Claude, GPT 5, Gemini etc)
Integrate a persistent GPT chat thread with long-term memory for receiving and learning from human feedback. This feedback will be used to fine-tune output consistently.
Integration of backend dashboard with frontend Umbraco dashboard
What We’re Looking For
Must-have:
At least 5 years of Python programming experience (mid-level at least)
Experience with AWS services and Git
Programmatic AI skills including Langchain, LangSmith
Good software design skills for building with scalability in mind
Proven track record of Umbraco projects
Nice to have:
Advanced AI Engineering skills for building even more customised AI workflows
Nextjs + React + Typescript OR Django for frontend dashboard development
Strong quantitative and programming skills (Python, R, C++, or similar), with experience in building trading models and systematic strategies.
Contract
This job demands full-time attention from the successful developer. The project is expected to last 2 months. Developer must be available for questions and meetings during Singapore work hours.
How to apply
Send us your CV and portfolio that illustrates at least all ‘must-have’ skills required for this role. Also state your expected monthly compensation range in EUR
Please share a sample from a LangChain project you’ve built. Ideally something that shows:
– Chain/agent structure
– Prompt design and organisation
– State or memory handling
– Error handling and retries
– Overall project architecture
A GitHub repository or extracted core files are fine. If the original work is confidential, please share a simplified or anonymised version.
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