Middle Strong C++ developer
First seen by Alion on Oct 28, 2026.
We are looking for a talented Middle strong C++ Developer with 3.5+ years of programming background to make consistent, high-quality code contributions to a mature, high-performance C++ product in the energy commodities trading domain.
This is not a from-scratch build — you'll be joining a live, production trading system where every millisecond counts, with real opportunity to influence the technical direction of a core part of the platform.
JOB REQUIREMENTS:
Must have:
3.5+ years of professional experience in software development
Deep expertise in Modern C++ (17/20/23): move semantics, constexpr, templates, etc.
Strong experience with Linux / POSIX environments
Profi/ciency with build systems and tools: CMake / vcpkg, Git
Hands-on experience with concurrency and shared memory tools
Networking skills: ZeroMQ (or similar), low-level socket programming (TCP/UDP)
Proficiency in using AI coding tools (Cursor, Claude, Codex, etc.) to enhance the development workflow
English: Upper-Intermediate or Advanced
Nice to have:
Experience with Svelte
Familiarity with kdb+, TypeScript, and code generation tools
Experience in Financial or Trading domains (FIX Protocol, OMS, market data feeds like ITCH/OUCH)
Knowledge of Redis or other in-memory data stores
Familiarity with the Qt framework
Team lead experience (optional, not required)
WHAT WE ARE LOOKING FOR:
Autonomy: You excel at working independently, learning on your own, and figuring out large, unfamiliar codebases without external support.
Ownership: You are ready to take full responsibility for the core part of the system.
Assertiveness: You can clearly communicate your technical vision and demonstrate your project understanding effectively.
PROJECT
Customer: Global company based in the US, serving large international clients.
Type: Fintech / trading platform
Product: A live, high-performance market order and trading system designed as an exchange for energy commodities. The platform connects global buyers and sellers of specialized commodities, providing trading, data insights, and market infrastructure used by large enterprises, financial institutions, and government agencies.
Market: Global — primarily US and European markets, serving corporations, financial institutions, and governments across multiple regions.
Stage: Existing, established platform. The Markets Engineering team is expanding internationally.
Project team: C++ and UI developers (team of 4-6), reporting to a Lead C++ Engineer. [confirm exact composition with HM]
Technical stack: Modern C++ (17/20/23), Linux/POSIX, CMake, vcpkg, Git, ZeroMQ, shared memory, TCP/UDP sockets; Svelte, TypeScript, kdb+, Redis, Qt (adjacent/nice to have)
Work schedule: Full-time working day, fully remote.
Key achievements:
Large international customer with a portfolio of large international clients
Real opportunity to set the direction for a mature product
INTERVIEW STAGES:
Intro call with recruiter
Technical interview (TechMagic)
Interview with Hiring manager
Client interview