Ensono

Expert Software Engineer

Ensono$130K — $188K *
US-AnywhereRemote in United States
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • 10+ years of experience in Mainframe Skills including COBOL, CICS, JCL, DB2, and VSM.
  • Expert understanding of dynamic memory allocation and C++ threading model.
  • Experience with advanced memory management practices.
  • Proficiency in CMake for cross-platform build configuration and Docker for containerization.
  • Strong analytical and problem-solving skills, as well as excellent communication.

Responsibilities

  • Architect and develop high-performance C++ applications, focusing on scalability and performance.
  • Design solutions using advanced memory management and multithreading.
  • Lead code reviews, enforce standards, and mentor junior engineers.
  • Define and manage CMake build systems and CI/CD pipelines.
  • Diagnose complex system issues using GDB and Valgrind tools.

Benefits

  • Unlimited Paid Days Off
  • Three health plan options
  • 401k with company match
  • Family Forming Benefit including fertility coverage
  • Education Reimbursement and Student Loan Assistance
Full Job Description
Roles & Responsibilities
  • Architect, develop, and maintain complex, high-performance applications in C++ (C++11/14/17/20 and beyond)
  • Take ownership of critical system components with a focus on reliability, scalability, and performance
  • Design and implement solutions involving advanced memory management and concurrent/multithreaded architecture
  • Lead code reviews and enforce coding standards and best practices across the team
  • Define and maintain CMake-based build systems and manage multi-platform build configurations
  • Design and maintain CI/CD pipelines and Docker-based containerisation workflows
  • Diagnose and resolve complex issues using tools such as GDB and Valgrind; lead performance profiling and tuning initiatives
  • Collaborate with cross-functional teams in a Linux-based development environment
  • Contribute to and maintain automation scripts using Python and shell scripting
  • Interact with relational data sources using SQL where required
  • Manage source code, branching strategies, and release workflows using Git
  • Mentor junior and mid-level engineers; drive technical growth across the team
  • Participate in system design discussions, technical planning, and effort estimation

Required Skills & Experience Technical
  • 10+ years of experience in Mainframe Skills COBOL, CICS, JCL, DB2 and VSM

• Expert understanding of dynamic memory allocation, RAII, smart pointers (unique_ptr, shared_ptr, weak_ptr)
• Experience diagnosing and resolving memory leaks, dangling pointers, and buffer overflows
• Familiarity with custom allocators and memory pool strategies
• Strong command of the C++ threading model (std::thread, std::mutex, std::atomic, std::condition_variable)
• Experience with lock-free and wait-free programming patterns
• Ability to identify and resolve race conditions, deadlocks, and thread-safety issues
• Expert-level experience with CMake for cross-platform build configuration
• Proficiency with Docker for containerised development and deployment environments
• Hands-on experience designing and maintaining CI/CD pipelines (e.g., Jenkins, GitLab CI, GitHub Actions)
• Advanced use of GDB for low-level debugging and post-mortem analysis
• Proficiency with Valgrind (Memcheck, Helgrind, Callgrind) for memory and thread analysis

Qualifications:
  • Bachelor's or master's degree in computer science, Software Engineering, or a related technical discipline
  • Equivalent industry experience will be considered in lieu of formal education
  • Soft Skills: Excellent problem-solving and analytical skills. Strong communication and interpersonal skills. Ability to work independently and as part of a team.


We are a client-facing business, but we do encourage clients to allow us to work remotely most of the time so if you are not required to be on a client site, you can choose to work from home or in our Ensono offices.

Some of our benefits include:
  • Unlimited Paid Days Off
  • Three health plan options
  • 401k with company match
  • Eligibility for dental, vision, short and long-term disability, life and AD&D coverage, and flexible spending accounts
  • Family Forming Benefit including fertility coverage and adoption/surrogacy reimbursement
  • Paid childbearing and paternal leave
  • Education Reimbursement, Student Loan Assistance or 529 College Funding
  • Sabbatical leave
  • Wellness program
  • Flexible work schedule

As of the date of this posting, a good faith estimate of the current pay scale for this role is $130,000 to 188,000 annually based on a full-time schedule. Please note that placement in the range may vary based on numerous factors including but not limited to skills, experience, internal equity, and business needs. In addition to base salary, other compensation programs, depending on eligibility, include an annual bonus plan based on company and individual performance and an equity grant under our Associate Equity Appreciation Program.

About Ensono

Ensono is a hybrid IT services provider that helps clients transform their IT infrastructure, operations and service delivery to improve business agility, accelerate growth and optimize their IT expense management. Ensono delivers technology solutions across all platforms and for all types of IT environments, helping clients to drive innovation and enhance their customer experiences. The company has over 2,000 associates and is headquartered in Chicago, Illinois, with operations in North America, Europe, and Asia.
Learn more about Ensono
Size
2,000 employees
Industry
Net Income
$20 million
Founded
2000
5 Year Trend
+5%
Revenue
$550 million

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