Middle/Senior Python Developer - Career Sigma Software

Sigma • Europe (remote)

No Relocation

Posted: January 21, 2026

Required skills
Python (Flask/Django/FastAPI) / strong Microservices/Serverless architecture / strong Cloud (AWS/public cloud deployment) / strong REST APIs/Frontend-backend integration / strong Databases (SQL/NoSQL) / strong
Are you a skilled Full Stack Developer ready to work with modern cloud technologies and impactful integration projects? We at Sigma Software are looking for a Mid-to-Senior specialist to join our distributed team, working remotely from Europe.
In this role, you will contribute to a long-term international project, developing scalable web applications and services that connect enterprise systems and enhance partner experiences. You’ll be part of a collaborative, Agile environment where your ideas and expertise will directly influence the product’s evolution.
Why join us? At Sigma Software, you’ll work with cutting-edge technologies, have opportunities for professional growth, and be part of a team that values innovation, flexibility, and work-life balance.

Customer
Our customer is ConnectWise, a US-based company specializing in software solutions for IT service providers. ConnectWise offers a suite of products for remote monitoring, business automation, cybersecurity, and cloud services. With a strong global presence, they are recognized for enabling Managed Service Providers (MSPs) to deliver exceptional IT services efficiently.

Project
You will be part of a dynamic international team building a modern, cloud-powered platform that serves thousands of partners worldwide. The solution is a React-based web application backed by scalable AWS services, enabling secure user management, authentication, public APIs, billing operations, and seamless integration with other enterprise systems, including Salesforce.
The roadmap includes several high-impact initiatives:
Unified Access & SSO: Delivering a frictionless partner experience through streamlined provisioning, authentication, and permissions. Salesforce Transformation: Migrating to a consolidated Salesforce environment to boost autonomy and reduce dependencies. Next-Gen UI: Exploring migration to a cutting-edge MUI-based design system for a unified, modern interface.
You’ll be working alongside experienced Python and Full Stack engineers in a collaborative, agile environment, contributing to solutions that directly influence business efficiency and partner satisfaction.

3+ years of experience in Python web development with backend frameworks (Flask, Django, FastAPI) or Node.js (Express, NestJS)
Proven experience deploying applications on public cloud platforms
Familiarity with serverless architecture and microservices design patterns
Strong understanding of RESTful APIs and frontend-backend integration
Experience with SQL and/or NoSQL databases
Knowledge of web application security best practices
Experience with testing frameworks (Jest, Cypress, PyTest, Mocha)
Proficiency in Git and familiarity with CI/CD pipelines
Excellent problem-solving skills and attention to detail
Strong communication and collaboration abilities
Bachelor’s degree in Computer Science or related field, or equivalent experience

Design, develop, and maintain scalable web applications and services across the full stack
Build backend services and APIs using Python or Node.js, integrating with SQL/NoSQL databases and AWS services
Implement AWS Lambda functions for serverless workflows
Optimize application performance, ensuring high availability and scalability
Collaborate with product managers, designers, and engineers to deliver high-quality solutions
Write clean, maintainable, and testable code following best practices
Troubleshoot and resolve technical issues across the stack
Participate in code reviews and uphold coding standards
Document APIs using OpenAPI (Swagger) for consistency and clear communication
Develop unit tests to ensure code quality and reliability
Stay current with emerging technologies and industry trends