• Design, Develop, and Debug: Lead the design, development, and debugging of software for distributed systems, ensuring robust, performant and scalable solutions. • Lead Projects: Manage and lead high-impact initiatives, coordinating with different stakeholders to ensure timely and quality delivery in an iterative development environment. • Mentor and Collaborate: Serve as a leading contributor, both individually and as a team member, offering direction and mentorship to other engineers. • Assure Quality: Maintain high standards for code quality, performance, and reliability, conducting thorough testing and reviews. • Innovate and Improve: Stay up-to-date with emerging technologies and industry trends, advocating for the adoption of new tools and methodologies to improve the development process.

Company Overview: Lean Tech is a rapidly expanding organization situated in Medellín, Colombia. We pride ourselves on possessing one of the most influential networks within software development and IT services for the entertainment, financial, and logistics sectors. Our corporate projections offer a multitude of opportunities for professionals to elevate their careers and experience substantial growth. Joining our team means engaging with expansive engineering teams across Latin America and the United States, contributing to cutting-edge developments in multiple industries. Currently, we are seeking a Full Stack Developer with a great English level to join our team. As a Mid+/Senior Fullstack Developer, you will develop and maintain high-performing applications using C#, .NET, Cosmos DB, Azure, and SQL Server, ensuring seamless functionality across both frontend and backend systems. You’ll build modern, responsive user interfaces with Angular, while optimizing database structures and deploying cloud-based solutions. Collaborating with cross-functional teams, you will contribute to scalable and efficient applications that align with our strategic goals. Join Lean Tech to grow your career in a fast-paced, innovative environment while shaping the future of software development. Position Title: Mid+/Senior Fullstack Developer Location: Remote What you will be doing: ● Programming ability in the .Net platform, the C# language, and SSRS. ● Knowledge of Microsoft programming technologies, such as Sockets, Web Services, Threading, .Net Reporting, and COM. ● Familiarity with Azure App Services, APIs, Web Services and Angular 2/4. ● Identify and/or resolve technical issues (troubleshooting). ● Create and maintain CI/CD pipelines. ● Investigates operational or systematic problems and user queries arising during day to day running and provides solutions to them. ● Performs specialized programming tasks requiring a high degree of technical proficiency in such areas as database, data communications, and the client-server architecture. ● Designs, Codes, tests, and documents with .Net, C#, and MS-SQL according to systems standards. ● Document and communicate technical requirements and issues to product vendors. ● Deploy features and functions into nonproduction environments. ● Effectively communicate store status and support issues. ● Able to operate independently with little guidance. ● Must be a continuous learner and enjoy working in a team environment. ● Prepares reports outlining systems or revisions. ● Other duties as assigned. Requirements & Qualifications: To excel in this role, you should possess: ● At least 3 years of experience in fullstack development using C# and .NET, demonstrating advanced expertise in both frontend and backend development. ● 3+ years of software application development (Asp.Net/C#) ● Intermediate experience with Angular. ● Experience with Microservices, Cosmos, SQL server, and design patterns, azure ● Advanced experience in MVC ● Web Services ● Web API ● Deep understanding of Azure Active Directory (Entra ID), including Enterprise Applications, App Registrations, Managed Identities, and SSO/SAML/OIDC flows. ● Experience with SCIM (System for Cross-domain Identity Management) for automated user provisioning. ● Experience designing and maintaining internal SDKs/NuGet packages for standardized API consumption across microservices. ●Ability to design schema-less data models for high-scale, distributed environments (Cosmos DB/NoSQL) Nice to Haves: ● Familiarity with legacy systems like FoxPro ● Experience in cloud-based application architecture ● Knowledge of containerization technologies such as Docker ● Understanding of microservices architecture and its implementation ● Background in performance optimization and system scalability ● Certifications in cloud technologies, such as Microsoft Azure Fundamentals ● Excellent communication and teamwork abilities ● Exposure to Agile or Scrum development methodologies Why you will love Lean Tech: ● Join a powerful tech workforce and help us change the world through technology ● Professional development opportunities with international customers ● Collaborative work environment ● Career path and mentorship programs that will lead to new levels. Join Lean Tech and contribute to shaping the data landscape within a dynamic and growing organization. Your skills will be honed, and your contributions will play a vital role in our continued success. Lean Tech is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

Anyone AI is recruiting skilled software engineers to work on a project with a leading AI lab. Qualifications: - Advanced professional written proficiency in English - 3–7 years of professional software engineering experience - Strong proficiency in Python and JavaScript/TypeScript; working knowledge of Java, C#, or Go - Backend or full‑stack development experience in production systems - Experience with testing frameworks (e.g., pytest, Jest, JUnit, xUnit, Go testing) - Proven ability to debug and navigate large, multi‑file codebases - Experience with code reviews, refactoring, and production migrations Engagement: Part-time, project-based expert evaluation work Work Type: Remote Contributors will design and evaluate realistic software engineering tasks, including bug resolution, feature implementation, refactoring/migration, and test generation. Work includes both creating complex coding scenarios and reviewing peer submissions for quality and accuracy. This is a project-based consultant role. Consultants will be paid on a per-project basis; hourly rates are estimates based on anticipated completion time. Consultants control their own schedule, provide their own tools, and may simultaneously provide services to other vendors/employers (subject to those vendors’ allowances). Responsibilities: Contributors will: - Design and implement multi-file coding tasks across bug fixing, feature development, refactoring, and testing - Write clear natural-language specifications and reference implementations - Develop and extend unit and integration test suites - Review peer-generated tasks for correctness, clarity, and realism - Identify edge cases, ambiguities, and potential failure modes - Ensure alignment between specifications, code, and expected outputs Expected Outcomes: - High-quality, production-realistic coding tasks - Complete and correct reference implementations - Robust test coverage and validation artifacts - Structured, actionable peer review feedback

Anyone AI is recruiting skilled software engineers to work on a project with a leading AI lab. Qualifications: - Advanced professional written proficiency in English - 3–7 years of professional software engineering experience - Strong proficiency in Python and JavaScript/TypeScript; working knowledge of Java, C#, or Go - Backend or full‑stack development experience in production systems - Experience with testing frameworks (e.g., pytest, Jest, JUnit, xUnit, Go testing) - Proven ability to debug and navigate large, multi‑file codebases - Experience with code reviews, refactoring, and production migrations Engagement: Part-time, project-based expert evaluation work Work Type: Remote Contributors will design and evaluate realistic software engineering tasks, including bug resolution, feature implementation, refactoring/migration, and test generation. Work includes both creating complex coding scenarios and reviewing peer submissions for quality and accuracy. This is a project-based consultant role. Consultants will be paid on a per-project basis; hourly rates are estimates based on anticipated completion time. Consultants control their own schedule, provide their own tools, and may simultaneously provide services to other vendors/employers (subject to those vendors’ allowances). Responsibilities: Contributors will: - Design and implement multi-file coding tasks across bug fixing, feature development, refactoring, and testing - Write clear natural-language specifications and reference implementations - Develop and extend unit and integration test suites - Review peer-generated tasks for correctness, clarity, and realism - Identify edge cases, ambiguities, and potential failure modes - Ensure alignment between specifications, code, and expected outputs Expected Outcomes: - High-quality, production-realistic coding tasks - Complete and correct reference implementations - Robust test coverage and validation artifacts - Structured, actionable peer review feedback