Senior Python Systems Developer - Functional Testing Specialist

Please submit your CV in English and include your English proficiency level. Toloka AI, through the Mindrift platform, seeks a Senior Python Systems Developer for Functional Testing. This freelance, project-based contract supports leading technology firms with AI system testing and evaluation. The position is fully remote for candidates based in Virginia, Un…

Please submit your resume in English and include your English proficiency level. Toloka AI, through the Mindrift platform, offers freelance opportunities for specialists to contribute to leading AI projects. This Senior Python Systems Developer - Functional Testing Specialist role is remote and open to candidates based in Wisconsin or anywhere in the United States. The position is project-based and not a permanent staff role. Role overview This position centers on designing and implementing functional black box tests for large, multi-language codebases. The work involves building and maintaining Docker environments to ensure reproducible builds and test executions across platforms. Monitoring code coverage and configuring automated scoring systems to align with industry standards are also key parts of the job. The role includes using large language models (LLMs) such as Roo Code and Claude Code to automate repetitive tasks, streamline workflows, and improve code quality. What you will do Design and implement functional black box tests for codebases written in various programming languages. Set up and maintain Docker environments for reproducible builds and test runs. Monitor code coverage and configure automated scoring systems to meet benchmarks. Use LLMs (Roo Code, Claude Code) to automate tasks and enhance code quality. Requirements At least 5 years of experience as a Software Engineer, primarily working with Python. Extensive experience with pytest, including fixtures, session-scoped tests, timeouts, and building black-box functional tests for CLI tools. Expertise in Docker: writing reproducible Dockerfiles, managing user contexts, and maintaining secure workspaces. Strong knowledge of Linux and Bash scripting, including debugging within containers. Familiarity with modern Python tools such as uv, pyproject.toml, and packaging. Ability to read and understand code in C, C++, Rust, and Go, with support from LLMs. Experience using LLMs (Claude Code, Roo Code, Cursor) to accelerate development and generate test cases. English proficiency at B2 level or higher. Preferred qualifications Experience with agent evaluation platforms and MCP CLI. Tools and technologies Python (pytest, uv, Pillow), Docker, Bash, Git Submodules, C/C++/Rust/Go (reading), Dagger, GitHub Codespaces, LLMs (Claude Code, Roo Code, Cursor), coverage.py, gcov, kcov. Project details and compensation Freelance, project-based work through the Mindrift platform (Toloka AI). Fully remote and flexible scheduling. Expected commitment is 20-30 hours per week. Compensation is project-based and depends on scope and expertise. AI trainers can earn up to $80 per hour.

Please submit your resume in English and include your English proficiency level. Mindrift, powered by Toloka AI, offers project-based freelance roles for specialists focused on testing, evaluating, and improving AI systems for major technology companies. These positions are not permanent but are structured around specific projects. Role overview This Senior Python Systems Developer role emphasizes functional testing of large codebases. The position requires significant experience with Python, Linux, and Docker, as well as the ability to work with multiple programming languages such as C, Rust, and Go. Using large language models (LLMs) like Roo Code or Claude Code to streamline development is a key part of the work. What you will do Design and implement functional black box tests for codebases in various languages. Set up and maintain Docker environments to ensure reproducible builds and consistent testing across platforms. Monitor code coverage and configure automated scoring metrics to align with industry standards. Use LLMs (such as Roo Code and Claude) to automate repetitive tasks, enhance code quality, and accelerate development cycles. Requirements Minimum 5 years of experience as a Software Engineer, primarily working with Python. Strong background with pytest, including fixtures, session-scoped tests, and timeouts, plus experience designing black-box functional tests for command-line tools. Advanced knowledge of Docker, including reproducible Dockerfiles, managing user contexts, and secure workspace practices. Proficient in Linux and Bash scripting, with the ability to debug within containers. Familiarity with modern Python tooling such as uv, pyproject.toml, and packaging. Ability to read and understand code in C, C++, Rust, or Go, with support from LLMs. Hands-on experience using LLMs (Claude Code, Roo Code, Cursor) to speed up development and generate test cases. English proficiency at B2 level or higher. Preferred qualifications Background with agent evaluation platforms and MCP CLI. Tools and technologies Python (pytest, uv, Pillow), Docker, Bash, Git Submodules, C/C++/Rust/Go (reading), Dagger, GitHub Codespaces, LLMs (Claude Code, Roo Code, Cursor), coverage.py, gcov, kcov. Benefits and work structure Freelance, project-based assignments through Mindrift. Fully remote work with flexible hours, typically 20-30 hours per week. Compensation depends on project scope and expertise. For this project, AI trainers can earn up to $80 per hour.

Please submit your CV in English and indicate your English proficiency level. Mindrift connects skilled professionals with project-based AI work for top technology companies. The focus is on testing, evaluating, and improving AI systems. This is a contract position tied to specific projects, not a permanent full-time role. Role overview This Senior Python Systems Developer position centers on functional testing for large and complex codebases. The work involves designing and running black-box tests, setting up reproducible environments with Docker, and using large language models (LLMs) to enhance and automate development tasks. The ideal candidate is comfortable with Linux, Docker, and can interpret code in languages like C, Rust, or Go. Familiarity with iterative development tools such as Roo Code or Claude Code is valued, as is experience with migration tasks. What you will do Design and implement functional black-box tests for large codebases in various languages. Set up and maintain Docker environments to support reproducible builds and test runs across platforms. Track code coverage and configure automated scoring to match industry standards. Leverage LLMs (including Roo Code and Claude) to automate repetitive steps and improve code quality. Requirements Minimum 5 years as a Software Engineer, primarily working with Python. Strong hands-on experience with pytest (including fixtures, session-scoped tests, and timeouts) and black-box testing for CLI tools. Expert-level knowledge of Docker, including writing reproducible Dockerfiles, managing user contexts, and workspace security. Advanced Linux and Bash scripting skills, with the ability to debug inside containers. Familiarity with modern Python tooling such as uv, pyproject.toml, and packaging. Ability to read and interpret code in C, C++, Rust, or Go, with LLM assistance. Experience using LLMs (Claude Code, Roo Code, Cursor) for iterative development and generating tests. English proficiency at B2 level or higher. Preferred Background with agent evaluation platforms and MCP CLI. Tools and technologies Python (pytest, uv, Pillow), Docker, Bash, Git Submodules, C/C++/Rust/Go (for code reading), Dagger, GitHub Codespaces, LLMs (Claude Code, Roo Code, Cursor), coverage.py, gcov, kcov. Benefits and compensation Freelance, project-based work through the Mindrift platform (powered by Toloka AI). Fully remote and flexible: set your own schedule and contribution level (20-30 hours per week). Project-based pay. AI trainers on this project can earn up to $80 per hour. Location: Remote , San Antonio, Texas, United States

Please submit your CV in English and specify your English proficiency level. Mindrift, powered by Toloka AI, offers freelance, project-based roles supporting leading technology companies. This Senior Python Developer - Code Migration Expert position is remote and based in Virginia, United States. The engagement is not permanent and suits those seeking flexible, project-driven work. Role overview This project focuses on code migration and functional testing for large codebases. The work involves translating migration requirements, building and testing across multiple languages, and using large language models (LLMs) such as Roo Code and Claude Code to support code analysis and automation. Familiarity with C, Rust, Go, or similar languages is important, as is experience with Linux and Docker environments. Main responsibilities Create functional black box tests for codebases in various programming languages. Set up and manage Docker environments for reproducible builds and cross-platform testing. Monitor code coverage and implement automated scoring to meet industry standards. Use LLMs (Roo Code, Claude) to automate repetitive tasks, accelerate development, and improve code quality. Requirements 5+ years as a professional Software Engineer with a focus on Python. Deep experience with pytest, including fixtures, session-scoped tests, and timeouts. Skilled in writing black-box functional tests for CLI tools. Advanced knowledge of Docker (writing reproducible Dockerfiles, managing user contexts, securing workspaces). Strong command of Linux and Bash scripting, with the ability to debug inside containers. Familiarity with modern Python tooling (uv, pyproject.toml, packaging). Ability to read and understand code in languages like C, C++, Rust, or Go, with support from LLMs. Experience using LLMs (Claude Code, Roo Code, Cursor) to speed up development and generate test cases. English proficiency at B2 level or higher. Preferred Experience with agent evaluation platforms and MCP CLI. Technologies and tools Python (pytest, uv, Pillow), Docker, Bash, Git Submodules, C/C++/Rust/Go (reading), Dagger, GitHub Codespaces, LLMs (Claude Code, Roo Code, Cursor), coverage.py, gcov, kcov. Benefits Freelance, project-based work through the Mindrift platform (Toloka AI). Fully remote with flexible hours, typically 20-30 hours per week. Project pay depends on scope and expertise; AI trainers can earn up to $80 per hour.

Join our dynamic team at Artech Information Systems LLC as a Test Automation Developer, where you will leverage your Python expertise to develop innovative automated testing solutions. Collaborate with cross-functional teams to enhance product quality and streamline testing processes. If you are passionate about technology and thrive in a fast-paced environment, we want to hear from you!

Join our dynamic team at Sonsoft Inc. as a Unified Functional Testing (UFT) Specialist. In this role, you will be responsible for designing, implementing, and maintaining automation scripts to enhance our testing capabilities. Your expertise in UFT will be pivotal in ensuring the quality and performance of our software applications. We are looking for a proactive individual who is passionate about automation and quality assurance.

Please submit your CV in English and specify your English proficiency level. This freelance, project-based role connects experienced Python developers with AI-focused projects at toloka-ai, delivered through the Mindrift platform. Assignments involve evaluating, testing, and improving AI systems for leading tech companies. This is not a permanent position, but offers flexible, remote work from Wisconsin or elsewhere in the United States. Role overview The Senior Python Developer - Code Migration Expert will focus on migrating codebases, designing functional tests, and collaborating across multiple programming languages. The work involves reading and understanding code in C, Rust, and Go (with LLM support), translating requirements, and streamlining development cycles using tools like Roo Code and Claude Code. Deep experience with Linux and Docker is essential. What you will do Design and implement black box functional tests for large, multi-language codebases. Set up and manage Docker environments to ensure reproducible builds and consistent test execution. Monitor code coverage and establish automated scoring criteria to align with industry standards. Use LLMs (such as Roo Code and Claude) to automate repetitive development tasks and enhance code quality. Requirements 5+ years as a Software Engineer with a strong focus on Python. Expertise in pytest, including fixtures, session-scoped tests, and timeouts, plus experience designing black-box functional tests for CLI tools. Advanced skills with Docker: writing reproducible Dockerfiles, managing user contexts, and securing workspaces. Strong Linux and Bash scripting abilities, including debugging inside containers. Experience with modern Python tools (uv, pyproject.toml, packaging). Ability to read and understand code in C, C++, Rust, and Go, with LLM assistance. Hands-on experience using LLMs (Claude Code, Roo Code, Cursor) to accelerate development and generate test cases. English proficiency at B2 level or higher. Preferred qualifications Experience with agent evaluation platforms and MCP CLI. Key tools & technologies Python (pytest, uv, Pillow), Docker, Bash, Git Submodules, C/C++/Rust/Go (for reading), Dagger, GitHub Codespaces, LLMs (Claude Code, Roo Code, Cursor), coverage.py, gcov, kcov. Benefits & collaboration details Freelance, project-based assignments through Mindrift (powered by Toloka AI). Fully remote with a flexible schedule. Typical commitment is 20-30 hours per week. Compensation varies by project and expertise. AI trainers can earn up to $80 per hour.

Join our dynamic team at Sonsoft Inc., where we are looking for a dedicated NCino Product Functional Testing Specialist. In this exciting full-time role, you will play a critical part in ensuring the quality and functionality of our innovative financial technology solutions. Your expertise in product testing will be essential in delivering high-quality software that enhances user experience and meets client expectations.

Join our dynamic team at Sonsoft Inc. as a Functional / User Acceptance Testing (UAT) Specialist. In this pivotal role, you will be responsible for ensuring the quality and functionality of our software solutions through rigorous testing and validation processes. Your expertise will help us deliver high-quality products that meet the needs of our clients.As a UAT Specialist, you will collaborate with cross-functional teams to design test cases, execute testing processes, and report on results. You will play a crucial role in identifying potential issues and ensuring that all software functionalities align with business requirements.

Title: Senior SAP Functional Support SpecialistBe at the forefront of technological advancement. Join our team and elevate your expertise in an international setting with a company renowned for its innovation and excellence.Key Responsibilities:Architect, configure, and enhance SAP Project Systems (SAP PS & PPM) solutions across diverse legal entities in multiple countries.Consult and devise effective solutions for business processes, ensuring sustainability and upgradability with minimal operational disruption.Facilitate the integration of Project Systems with various SAP ERP components, including Finance, MRP, and Production Orders.Deliver scalable, robust, and cost-efficient technical solutions that align with approved business requirements.Oversee global Change Request developments, including the assessment and approval of Impact Analyses.Identify and implement initiatives that foster continuous improvement and enhancements from a functional standpoint.Authorize transport requests for Quality Assurance and production systems.Champion process standardization from a technical viewpoint, taking responsibility for solution design.Analyze and generate reports on projects, service requests, and resource allocation issues for management review.Review and validate technical change documentation prepared by external consultants and in-house teams.Endorse the Blueprint Solution Document (BSD) for solutions.Ensure the completeness of system documentation.Coordinate implementation projects in collaboration with external consultants.Promote a culture of safety and compliance within your area of responsibility, adhering to the Rolls-Royce Code of Conduct.Engage in special projects as necessary.

Join Sonsoft Inc. as a Functional Testing Specialist within the dynamic Insurance domain. This full-time position offers the opportunity to play a key role in ensuring the quality and functionality of software solutions tailored for the insurance industry. You will collaborate with cross-functional teams to design, develop, and execute test strategies that meet rigorous industry standards.

Join our dynamic team at Sonsoft Inc. as a FileNet Functional Testing Specialist. In this full-time role, you will play a pivotal part in ensuring the quality and performance of our FileNet applications through rigorous functional testing. Your expertise will contribute significantly to our project success and client satisfaction.

Please submit your CV in English and include your English proficiency level. Toloka AI, working through the Mindrift platform, brings together skilled professionals for project-based roles supporting technology companies. Mindrift’s projects focus on testing, evaluating, and improving AI systems, giving contributors a chance to work on practical AI challenges. Role overview This Senior Python Developer - Code Migration Specialist position centers on migrating and testing large, multi-language codebases. The role calls for strong Python development skills, deep experience with Linux and Docker, and the ability to interpret code in C, Rust, and Go. Familiarity with LLM tools such as Roo Code or Claude Code is important for streamlining migration and development tasks. What you will do Create functional black box tests for complex codebases in multiple languages. Design and maintain Docker environments to ensure reproducible builds and tests across platforms. Track code coverage and set up automated scoring to meet industry standards. Apply LLMs (like Roo Code and Claude) to automate repetitive work, speed up development, and improve code quality. Requirements 5+ years as a Software Engineer, with a primary focus on Python. Advanced knowledge of pytest, including fixtures, session-scoped tests, and timeouts, plus experience designing black-box functional tests for CLI tools. Expertise in Docker, including reproducible Dockerfiles, user contexts, and secure workspace setup. Strong Linux and Bash scripting skills, with the ability to debug inside containers. Familiarity with modern Python tooling (uv, pyproject.toml, packaging). Ability to read and understand code in C, C++, Rust, and Go, with LLM support. Hands-on experience using LLMs (Claude Code, Roo Code, Cursor) to improve development cycles and create test cases. English proficiency at B2 level or above. Preferred Background in agent evaluation platforms or experience with MCP CLI. Tools and technologies Key tools include Python (pytest, uv, Pillow), Docker, Bash, Git Submodules, and Dagger. The role involves reading code in C, C++, Rust, and Go, and working with LLMs such as Claude Code, Roo Code, and Cursor. Additional tools: GitHub Codespaces, coverage.py, gcov, and kcov. Compensation and benefits Freelance, project-based work through Mindrift (powered by Toloka AI). Fully remote with a flexible schedule; set your own contributions (20-30 hours per week). Compensation varies by project. For this project, AI trainers can earn up to $80 per hour. Location: Remote , San Antonio, Texas, United States

Join our dynamic team at Sonsoft Inc. as a FileNet Case Manager - Functional Testing Specialist. In this role, you will be instrumental in ensuring the seamless functionality of FileNet applications through rigorous testing and analysis. Your expertise will contribute directly to optimizing our case management processes and enhancing user experience.

Syscogb seeks a System Testing Specialist based in Jasper. This role plays a key part in ensuring the quality and reliability of software products by developing and executing comprehensive test plans. Role overview The System Testing Specialist designs, runs, and maintains test plans for both new and existing software features. The focus is on identifying issues early and supporting the delivery of reliable solutions. What you will do Develop detailed test plans covering all relevant software features Perform both manual and automated tests to uncover issues and confirm fixes Document test results and track defects through to resolution Collaborate with colleagues across different teams to share findings and help drive product improvements Requirements Keen attention to detail Ability to work well with team members from various functions Dedication to supporting high-quality user experiences

Role Overview Callibrity is looking for a Senior Python Developer to help build and maintain applications that support client operations. This role involves both independent work and collaboration with other developers and teams across the company. What You Will Do Design and develop Python-based applications and systems Work with other developers to solve technical challenges Collaborate with cross-functional teams to deliver solutions that meet client needs Work Location This is a hybrid position based in Cincinnati. Team members split time between remote work and the Cincinnati office.

Join our innovative team at Sonssoft Inc. as a NCino Product Functional Testing Specialist. In this full-time role, you will be responsible for ensuring the functionality and effectiveness of NCino products through thorough testing and quality assurance processes. Your expertise will contribute to enhancing our product offerings and ensuring client satisfaction.

We are seeking a dynamic Project Manager with a strong focus on Functional Testing to join our team at Sonsoft Inc. In this role, you will be responsible for leading projects from inception to completion, ensuring that all functional testing requirements are met. You will collaborate with cross-functional teams to define project scope, goals, and deliverables, effectively managing resources and timelines to drive project success.