- Company Name
- Baselayer
- Job Title
- Junior Backend Engineer
- Job Description
-
Job Title: Junior Backend Engineer
Role Summary:
Associate a rapidly growing fintech company as a backend engineer responsible for designing, building, and maintaining Python-based APIs and data pipelines that support KYC/KYB processes. Leverage expertise in large‑scale data handling, performance tuning, security compliance, and emerging AI/ML technologies, particularly large language models (LLMs). Work closely with cross‑functional teams, demonstrating ownership, rigorous testing, and a learning‑oriented mindset.
Expectations:
* 1–3 years of backend development experience, primarily with Python.
* Proven ability to craft clean, maintainable code and rigorously test it.
* Strong focus on performance, scalability, and data integrity.
* Sound understanding of security, privacy, and regulatory requirements (KYC/KYB).
* Interest and experience in AI/ML integration, especially LLM fine‑tuning (RLHF, LoRA).
* Proactive, detail‑oriented self‑starter who thrives in fast‑changing environments.
* Good communication skills and willingness to engage in radical candor and feedback loops.
Key Responsibilities:
1. Design, build, and maintain RESTful APIs in Python, ensuring scalability and high performance.
2. Architect core backend services for KYC/KYB workflows, integrating knowledge‑graph and LLM components.
3. Develop and monitor robust data pipelines for identity data ingestion, transformation, and analytics at scale.
4. Collaborate with AI/ML teams to deploy and fine‑tune models (RLHF, LoRA) within the backend stack.
5. Build platform infrastructure that supports future AI/ML initiatives, emphasizing modularity and scalability.
6. Implement and enforce security and compliance controls aligned with industry standards and regulatory mandates.
7. Optimize system performance via caching, query tuning, and architectural patterns.
8. Write unit and integration tests, debug issues, and continuously improve architecture for resilience and maintainability.
Required Skills:
* Proficient in Python and modern web frameworks (e.g., FastAPI, Flask, Django).
* Experience designing RESTful APIs and microservice architectures.
* Strong grasp of relational and NoSQL databases, data modeling, and query optimization.
* Familiarity with large‑scale data processing (e.g., Kafka, Spark, or similar).
* Knowledge of security best practices, authentication/authorization, and compliance for regulated data.
* Basic understanding of AI/ML workflows, LLMs, reinforcement learning from human feedback, and parameter‑efficient fine‑tuning.
* Competence in unit testing, CI/CD pipelines, and automated monitoring.
* Excellent problem‑solving, communication, and collaboration skills.
Required Education & Certifications:
* Bachelor’s degree in Computer Science, Software Engineering, or a related technical field.
* Relevant certifications (e.g., AWS Certified Developer, GCP Professional Data Engineer, or security certifications such as CISSP/ CISM) are a plus but not mandatory.
San francisco, United states
On site
Junior
09-12-2025