Senior Back End Developer

Medellin
Application Modernization – Back End /
Contract /
Remote
About Crossvale: At Crossvale, we are a catalyst for transformation. Our mission is to push boundaries and deliver top-tier solutions for our global clientele, built on a legacy of technological leadership spanning two decades. Join a result-oriented, diverse team of practice leads, architects, and engineers where collaboration and actionable solutions are key to our success. Our core values are centered around experience, trust, passion, and results.

Position Overview: We are seeking a skilled Senior Back End Developer with expertise in Java and / or .NET Core and solid background in back-end infrastructure, software development, and technical leadership. The ideal candidate will be passionate about building innovative solutions, leading teams, and ensuring client satisfaction while contributing to complex and impactful projects.

Key Responsibilities

    • Collaborate with Solutions Architects to translate design requirements into actionable implementation plans.
    • Develop and deploy technical solutions that integrate seamlessly with enterprise systems and meet production standards.
    • Build and update project maps to align with implementation objectives.
    • Proactively identify risks and opportunities for optimization throughout the project lifecycle.
    • Create and manage internal documentation to facilitate knowledge sharing and ensure compliance.
    • Utilize Git for version control, including branching, merging, and rebasing.
    • Support continuous integration and delivery by creating and maintaining CI/CD pipelines.
    • Participate in client meetings to gather requirements, provide technical insights, and ensure satisfaction.
    • Ensure high-quality deliverables through rigorous testing and quality assurance processes.
    • Provide guidance and mentorship to Associate Consultants and team members, fostering a collaborative and learning-oriented environment.

Qualifications

    • 5–7 years of relevant software development experience in Java 11 or .NET Core.
    • Solid foundation in system architecture and containerization technologies (e.g., Docker, Kubernetes).
    • Proficiency in DevOps practices (CI/CD, infrastructure as code).
    • Excellent verbal and written communication skills.
    • Proficiency in frameworks such as Spring, Spring Boot, and Quarkus.
    • Familiarity with messaging brokers (Apache ActiveMQ, Apache Kafka).
    • Experience designing and implementing RESTful and GraphQL APIs.
    • Experience with Operator-based solutions (e.g., Infinispan, Kafka, Istio).
    • Knowledge of OAuth and microservices application security.
    • Configuration and management of middleware components (e.g., application servers, message brokers, API gateways).

What sets you apart

    • Strong problem-solving skills and attention to detail.
    • Ability to collaborate effectively with cross-functional teams.
    • Excellent English communication skills.
    • Proactive in identifying risks and improvement opportunities.
This is a contractor position (export of services). The ideal candidate must be able to invoice Crossvale monthly. The hourly rate is negotiable based on the candidate's skills and previous experience. The work schedule will align with U.S. Central Time hours.