Senior Fullstack Engineer, Python, React

Bonapolia

Senior Fullstack Engineer building Python and React GenAI applications for Bonapolia’s enterprise clients. Developing AWS agents, scalable APIs, and retrieval-augmented systems.

Posted 9/7/2026full-timeRemote • 🇵🇱 PolandSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in developing and optimizing Python-based applications and services, with a strong focus on GenAI and cloud technologies. Proficient in managing infrastructure as code and collaborating effectively across global teams.

Highest-signal resume keywords

Python Application DevelopmentGenAI Application DevelopmentAWS BedrockPostgreSQL Database DevelopmentFastAPI Framework

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

PythonFastAPIPostgreSQLGenAILangGraphLangChainNext.jsReactPandasExcel

Soft Skills

Critical ThinkingEffective CommunicationProactive Requirement ClarificationTask ManagementCollaboration

Tools & Technologies

AWSOpenSearchElasticsearchCursorClaude CodeCodexDockerTerraformAutoGenMCP

Industry Keywords

Infrastructure as CodeCloud-native ArchitecturesServerless TechnologiesData ProcessingWeb Scraping

Tech Stack

Tools & technologies

AWSCloudDockerElasticSearchJavaScriptNext.jsPandasPostgresPythonReactTerraform

About the role

Key responsibilities & impact

Develop, test, debug, maintain, and continuously improve Python-based applications and services
Deploy and configure applications and services in AWS environments
Provision and manage infrastructure using Infrastructure as Code while considering system performance and cloud costs
Work with PostgreSQL using pg_vector or search technologies such as OpenSearch or Elasticsearch for vectorized custom data and Retrieval-Augmented Generation use cases
Design and implement GenAI agents using AWS Bedrock and related cloud-based AI capabilities
Evaluate open-source GenAI frameworks against direct API integrations and select appropriate approaches for specific use cases
Explore and implement multi-agent solutions using frameworks such as AutoGen where appropriate
Investigate and resolve application, infrastructure, and integration issues
Optimize system performance and reliability
Collaborate with stakeholders and technical teams across multiple global regions
Contribute to innovation within the broader engineering organization

Requirements

What you’ll need

Senior-level experience
Upper-Intermediate English proficiency
Candidate must be located in Poland
Availability to work in the CET time zone
Experience with Python and FastAPI in production environments
Practical experience with GenAI and agentic application development
Hands-on knowledge of LangGraph and LangChain
Experience with managed cloud-based GenAI services such as AWS Bedrock / AgentCore or comparable solutions
Strong experience with PostgreSQL and relational database development
Hands-on experience with Pandas and Excel-based data processing
Frontend development experience with Next.js and React
Experience using AI-assisted development tools such as Cursor, Claude Code, or Codex
Experience designing and developing scalable APIs and backend services
Ability to manage multiple tasks and priorities effectively in parallel
Strong critical thinking skills
Proactive approach to clarifying requirements
Comfortable working in a proof-of-concept-oriented delivery environment
Excellent communication skills
Nice to have: Experience with MCP and FastMCP
Nice to have: Experience with web scraping and external data ingestion
Nice to have: Experience with Docker, cloud-native architectures, and serverless technologies
Nice to have: Experience with Terraform and cloud infrastructure troubleshooting

Benefits

Comp & perks

Full-time employment contract (UoP) at 0.125 FTE
Client-provided equipment
Fully remote work
English check and interview process
Payment terms up to 60 days