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Exfold

Sourcing, validating engineers for hire

C++ Software Engineer

ContractUpdated on 10/15/2026
No salary listed
Mid, Senior
Remote in Argentina
RemoteMust work within LATAM time zones (GMT-3 to GMT-5) and attend meetings across U.S. time zones.
Software EngineeringSystems Software Engineering

About the job

Requirements
  • Strong hands-on experience with modern C++, ideally C++17 or newer, including pointers, memory management, RAII, ownership, and object lifetime.
  • Recent hands-on production experience with modern C++.
  • Practical experience with multithreaded programming, synchronisation, concurrency, and safe management of shared state.
  • Strong debugging and diagnostic skills, including the ability to reproduce difficult issues and isolate root causes.
  • Ability to navigate large codebases, read source code and technical documentation, and learn unfamiliar technologies independently.
  • Clear professional English and the ability to communicate progress, risks, and expectations effectively.
  • Ability to work productively in modern C++. Experience with other low-level languages involving explicit memory management is valuable.
  • Work availability of 40 hours per week as a contractor.
Responsibilities
  • Develop and maintain native C++ components and Windows platform APIs.
  • Diagnose, reproduce, profile, and debug complex OS-level issues.
  • Implement features and fixes, validate them across supported Windows versions, and support compatibility and backporting work.
  • Investigate security, reliability, and performance issues, sometimes within time-sensitive release cycles.
  • Take ownership of problems from initial investigation through testing and delivery, collaborating with engineers across different areas.
Desired Qualifications
  • Native Windows development, Win32, Windows internals, C++/WinRT, WinRT APIs, WIL, or COM.
  • Windows concurrency technologies such as SRWLocks or Windows Thread Pools.
  • Windows platform services such as the Registry, Group Policy, or Scheduled Tasks.
  • Visual Studio, WinDbg, multithreaded debugging, profiling, or troubleshooting compilation and linking issues.
  • Experience testing platform-level changes across OS versions or supporting security and compatibility fixes.
  • Effective use of AI tools to accelerate investigation and development while validating the results.
  • Background in systems programming, native development, embedded software, driver development, gaming or engine development, electronics, or hardware-integrated software.

About the company

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Exfold

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Website

Exfold provides hiring services for software engineers, offering sourcing, recruiting, technical validation, and contractor staffing in a modular package. Its product works by combining human evaluation with AI-driven tools to identify and thoroughly vet candidates, focusing on time-zone and language affinity to improve fit. Clients can select the specific services they need, and Exfold manages the early stages of recruitment (sourcing and validation) to speed up hiring while ensuring higher-quality candidates reach final interviews. The company differentiates itself through its AI-assisted candidate validation, emphasis on geographic and linguistic alignment, and a flexible RaaS-like model that supports both permanent and contract engineering hires. Its goal is to help businesses expand their engineering teams efficiently by delivering qualified engineers who fit well with their teams.

Company Size

1-10

Company Stage

N/A

Total Funding

N/A

Headquarters

N/A

Founded

N/A

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Simplify Jobs

Simplify's Take

What believers are saying

  • Exfold posted an Automation Testing Engineer role July 9, 2026, showing active delivery work.
  • Fiorella Pizzi joined as Talent Delivery Lead in February 2026, adding operating capacity.
  • The company targets remote LATAM hiring, a durable niche for North American engineering teams.

What critics are saying

  • Exfold has 14 LinkedIn followers on September 1, 2026; pipeline depth looks thin.
  • The July 2026 Ashby role demands Claude AI, signaling low-volume, tool-heavy delivery labor.
  • If client concentration hits one or two accounts, revenue evaporates before 2027.

What makes Exfold unique

  • Exfold pairs human judgment with AI validation, visible on LinkedIn September 1, 2026.
  • Its modular sourcing, recruiting, validation, and contractor staffing model reduces handoff waste.
  • LATAM time-zone and language matching targets faster interviews and stronger team fit.

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Benefits

Remote Work Options