Senior Full-stack (Python/Node.js + React)

Bonapolia; Warszawa; On-site; PLN 120,000 - 180,000; Full time

Job summary

Bonapolia is seeking a Senior Engineer to design, develop, and maintain risk and governance platforms. You will work on Python/Node.js backends with React front-ends, implement SaaS solutions, and ensure security, performance, and reliability.

Collaboration across distributed teams and global time zones is expected. The role emphasizes architecture design, cloud deployment (AWS), IaC with Terraform, and modern CI/CD practices.

Qualifications

• Advanced Python or Node.js backend development experience with practical React knowledge.
• Strong PL/SQL skills.
• Docker and Kubernetes.
• AWS (Lambda, SQS, API Gateway, EKS, SNS, Secrets Manager, S3, Athena).
• Snowflake and MongoDB.
• Terraform (IaC).
• Performance, scalability, usability, and reliability principles.
• Application security (OWASP Top 10, SAST, DAST, dependency scanning).
• Software architecture and design.
• Event-driven and microservices architectures.
• pytest and Jest / React Testing Library.
• Test-Driven Development.
• Version control and collaboration tools.
• GenAI-assisted development tools.
• Monitoring and observability tools.
• Experience implementing SaaS platforms.

Responsibilities

• Develop and maintain applications using Python, Node.js, and React.
• Maintain PL/SQL scripts and database logic.
• Implement SaaS platforms and custom scripts.
• Design and document technical architectures.
• Translate business requirements into technical solutions.
• Deploy applications using AWS and serverless technologies.
• Manage Terraform pipelines.
• Integrate systems using event-driven architecture.
• Resolve production issues and support deployments.
• Follow CI/CD best practices.
• Maintain technical documentation.
• Use AI-assisted tools for coding, testing, and security analysis.

Skills

Python

Node.js

React

PL/SQL

Docker

Kubernetes

AWS

Snowflake

MongoDB

Terraform

Security

Software architecture

Event-driven

Microservices

Testing (pytest/Jest)

CI/CD

Git

GenAI

Observability

SaaS platforms

Job description

Customer Description:

Our Client is a leading global consulting company serving enterprise clients across multiple industries.

Project Description:

You will contribute to the Risk & Governance Platforms team, delivering business solutions. Responsibilities include architecture, development, maintenance, and enhancement of custom and SaaS solutions following best practices.

• Excellent communication and stakeholder management skills.
• Ability to collaborate within distributed teams.
• Strong analytical and problem-solving skills.
• Ability to work independently.
• Passion for emerging technologies.
• Advanced Python or Node.js backend development experience with practical React knowledge (Python + React: 6+ years; Python or Node.js: 4+ years).
• Docker and Kubernetes.
• AWS (Lambda, SQS, API Gateway, EKS, SNS, Secrets Manager, S3, Athena).
• Snowflake and MongoDB.
• Terraform (IaC).
• Performance, scalability, usability, and reliability principles.
• Application security (OWASP Top 10, SAST, DAST, dependency scanning).
• Software architecture and design.
• Event-driven and microservices architectures.
• pytest and Jest / React Testing Library.
• Test-Driven Development.
• Version control and collaboration tools.
• GenAI-assisted development tools.
• Monitoring and observability tools.
• Experience implementing SaaS platforms.

Tech Level:

Senior

Language Proficiency:

Upper-Intermediate

Employment type:

Full time

Candidate Location:

Poland

Working Time Zone:

CET

Start:

ASAP

Planned Work Duration:

12 months

Customer Description:

Our Client is a leading global consulting company serving enterprise clients across multiple industries.

Project Description:

You will contribute to the Risk & Governance Platforms team, delivering business solutions. Responsibilities include architecture, development, maintenance, and enhancement of custom and SaaS solutions following best practices.

Project Phase:

Ongoing

Soft Skills:

• Excellent communication and stakeholder management skills.
• Ability to collaborate within distributed teams.
• Strong analytical and problem-solving skills.
• Ability to work independently.
• Comfort working across multiple time zones.
• Passion for emerging technologies.

Hard Skills / Must Have:

• Advanced Python or Node.js backend development experience with practical React knowledge (Python + React: 6+ years; Python or Node.js: 4+ years).
• Strong PL/SQL skills.
• Docker and Kubernetes.
• AWS (Lambda, SQS, API Gateway, EKS, SNS, Secrets Manager, S3, Athena).
• Snowflake and MongoDB.
• Terraform (IaC).
• Performance, scalability, usability, and reliability principles.
• Application security (OWASP Top 10, SAST, DAST, dependency scanning).
• Software architecture and design.
• Event-driven and microservices architectures.
• Agile methodologies.
• pytest and Jest / React Testing Library.
• Test-Driven Development.
• Version control and collaboration tools.
• GenAI-assisted development tools.
• Monitoring and observability tools.

Hard Skills / Nice to Have (Optional):

• Experience implementing SaaS platforms.
• Serverless application development.
• Production support experience.

Responsibilities and Tasks:

• Develop and maintain applications using Python, Node.js, and React.
• Maintain PL/SQL scripts and database logic.
• Implement SaaS platforms and custom scripts.
• Design and document technical architectures.
• Translate business requirements into technical solutions.
• Deploy applications using AWS and serverless technologies.
• Manage Terraform pipelines.
• Integrate systems using event-driven architecture.
• Resolve production issues and support deployments.
• Follow CI/CD best practices.
• Maintain technical documentation.
• Use AI-assisted tools for coding, testing, and security analysis.

Technology Stack:

Python, Node.js (FastAPI), React, PL/SQL, Docker, Kubernetes, AWS, Snowflake, MongoDB, Terraform, pytest, Jest, React Testing Library, OWASP, SAST, DAST

Additional notes:

The candidate must be employed at 0.125 FTE under UoP and additionally under a service contract.

Payment terms — up to 60 days.

Work will be performed using client-provided equipment.

Ready to Join?

We look forward to receiving your application and welcoming you to our team!