Who We Are At MAS Global Consulting, we are a premium digital engineering partner trusted by innovative startups and Fortune 100 companies, delivering high-impact solutions through agile delivery, deep technical expertise, and a strong people-first culture across the Americas. We build long-term partnerships, not just software. MAS means *“more”
* in Spanish, and that mindset drives our commitment to greater opportunity, inclusion, and impact. Founded by a Latina engineer from Medellín and headquartered in Tampa, Florida, MAS Integral Consulting is a 100% Hispanic and woman-owned company, recognized as a Great Place to Work and one of the Fastest-Growing Companies in the US. Who You Are You are a Senior Python Engineer who knows how Python works under the hood: packaging, dependency resolution, and how behavior changes between runtime versions. You enjoy large-scale upgrade and modernization work, and you approach it carefully, testing thoroughly and documenting the evidence for each change. You work independently on well-defined tasks, write clear pull requests, respond well to code review, and keep stakeholders informed of progress and blockers in a distributed team. You’ll join a platform engineering team leading a Python 3.12 migration across a large codebase. What You’ll Do
- Prepare Python 3.12 migration and runtime-upgrade pull requests for assigned packages and services, following the team’s migration plan.
- Resolve dependency and build compatibility issues by updating version constraints and replacing deprecated or unmaintained libraries.
- Validate upgrades with unit, integration, and runtime compatibility tests,



investigating failures and documenting evidence for a safe rollout.
- Improve migration scripts, build configuration, linting, and static checks to make repeated upgrade work safer and easier to review.
- Work with package and service owners on code review feedback, track progress and blockers, and escalate issues that need broader platform changes. What You Bring
- 5+ years of professional Python experience, including maintaining production services or shared libraries in a large codebase.
- Advanced English (B2/C1) is mandatory, with strong verbal and written communication skills.
- Strong knowledge of Python packaging and build tooling: dependency resolution, version constraints, virtual environments, and package compatibility.
- Hands-on experience upgrading Python runtimes and libraries, including diagnosing behavior changes across versions and managing transitive dependencies.
- Practical experience with linting, formatting, and static analysis in CI/CD pipelines.
- Strong testing and debugging skills, including telling migration regressions apart from unrelated failures. Nice to Have
- Experience with large-scale refactors, staged runtime rollouts, or dependency upgrades coordinated across many packages and services.
- Familiarity with native Python extensions, compiled dependencies, or compatibility issues across Linux and Apple Silicon environments.
- Experience building reusable migration scripts or automation that reduces repeated upgrade work.
- Background in developer productivity, build and test infrastructure, or platform engineering teams

📌 Senior Python Engineer (Colombia)
🏢 Mas Global Consulting
📍 Colombia