Senior C++ FinTech Engineer – High-Performance Systems

Swift Transportation

Manassas (VA)

On-site

USD 101,000 - 188,000

Full time

14 days+

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Job summary

Swift is seeking a Senior C++ Software Developer to design, develop, and optimize high‑performance financial applications and distributed systems. You will work across the stack from core algorithms to database integration, messaging, and microservices in a FINTECH environment.

You will contribute to scalable architectures on Linux (RHEL), container ecosystems (Docker/Podman/Kubernetes), and modern IPC protocols (gRPC, REST). A strong focus on low latency, security, and reliability is expected.

Qualifications

Bachelor’s Degree in Computer Science, Computer Engineering, Information Systems or related field.
5–10 years hands-on experience in C++ (C++11/14/17).
Strong object-oriented design, data structures, algorithms and design patterns.
Experience with multithreading, concurrency controls, memory management and high throughput applications.
Proficient in Oracle SQL, PL/SQL, functions, triggers, indexing and performance tuning.
Experience designing scalable relational schemas.
Hands-on experience with gRPC (Protocol Buffers), RESTful APIs, microservices frameworks.
Understanding of message serialization, secure communication, and service orchestrations.
Proficient in Red Hat Enterprise Linux (RHEL) environment.
Knowledge of Linux tools, system services, package management and OS tuning.
Understanding of TCP/IP, DNS, routing, firewalls, SSL/TLS; scripting in Bash.
Optional but valuable: Python for automation, data processing or integration tasks.
Strong analytical thinking, problem-solving, and debugging ability.
Excellent written and verbal communication skills for technical and non-technical audiences.
Ability to work in an Agile development environment.
Self-driven and capable of driving end-to-end solutions.
Ability to mentor junior developers and contribute to team knowledge sharing.
Exposure to FINTECH transaction systems, clearing/settlement platforms or financial messaging.
Experience in performance engineering, low-latency optimization or high-frequency environments.
Knowledge of containerization (Docker, Podman) and CI/CD systems (Jenkins, GitLab, Azure DevOps).

Responsibilities

Architect, design, and develop scalable, performant FINTECH applications using C++
Implement high-quality code adhering to secure coding standards and low-latency design patterns
Develop services and components that integrate via gRPC, REST APIs and internal messaging frameworks
Work on containerized applications in Docker, Podman, Kubernetes or OCP
Optimize application performance, memory usage and latency for real-time transaction processing systems
Design and maintain database schemas, stored procedures, and SQL queries for Oracle or other enterprise databases
Ensure efficient data access patterns, indexing and query optimization
Deploy, configure and troubleshoot applications on RHEL-based systems
Monitor system health and tune OS/network parameters for high-availability environments
Collaborate with infrastructure teams to ensure smooth CI/CD pipelines
Develop and maintain microservices and distributed components using gRPC and RESTful APIs
Ensure secure, compliant communication flows in financial ecosystems
Build automation scripts, deployment tools, log parsers, and monitoring utilities using Bash and Python
Create CI/CD improvements and automate service rollout procedures
Collaborate with Product Owners, QA, DevOps, Security, and Business Analysts to deliver releases
Produce technical documentation, architecture diagrams and runbooks
Participate in technical reviews, mentor junior engineers and share knowledge
Communicate requirements, risks and design considerations to stakeholders
Conduct performance tests to ensure high efficiency and scalability
Expand test automation and ensure quality across test environments