Principal Software Engineer

Cygnus Professionals Inc.; Argentina; Presencial; ARS 137.157.000 - 198.116.000; Jornada completa

Descripción de la vacante

Cygnus Professionals seeks an experienced software engineer to design and implement AI-enabled agent tooling and scalable web services. You will build agent loops, manage context/memory, and craft multi-step pipelines with robust failure handling. Strong C#/.NET, ASP.NET Core, React/TypeScript skills are expected, plus CI/CD and cloud familiarity.

The role emphasizes infrastructure as code, containerization, and secure, well-tested code in a distributed system environment.

Formación

• Hands-on fluency with AI-assisted development tools.
• Experience building and orchestrating agents: designing agent loops, managing context and memory, composing multi-step pipelines from discrete skills, and handling failure modes gracefully.
• Define reusable, well-scoped skills with clear interfaces and predictable behavior.
• Prompt engineering as a first-class discipline: structured prompting, output validation, iterative refinement.
• Experience evaluating agent behavior to meet standards as hand-authored code.
• Identify automation candidates within development workflows.
• Strong command of containerization and orchestration for scalable services.
• Experience with major cloud platforms and managed services.
• Infrastructure as code practices across environments.
• Building and maintaining CI/CD pipelines with fast feedback and safe deployment.
• Distributed systems fundamentals: service communication, events, observability, fault tolerance.

Conocimientos

AI tooling

Agent orchestration

Agent loops

Context management

Memory handling

Multi-step pipelines

Failure modes

Prompt engineering

Output validation

Automation candidate identification

Containerization

Orchestration

Cloud platforms

Infrastructure as code

CI/CD

Distributed systems

C#

ASP.NET Core

REST APIs

React

TypeScript

Testing

Security

Herramientas

Docker

Kubernetes

Descripción del empleo

• Hands-on fluency with AI-assisted development tools — using them daily and understanding their strengths, failure modes, and appropriate limits.
• Experience building and orchestrating agents: designing agent loops, managing context and memory, composing multi-step pipelines from discrete skills, and handling failure modes gracefully.
• Ability to define reusable, well-scoped skills with clear interfaces and predictable behavior — the building blocks of reliable agentic workflows.
• Prompt engineering as a first-class discipline: structured prompting, output validation, iterative refinement, and the ability to teach these practices to others.
• Practical experience evaluating agent behavior: defining what good looks like, building evals, and holding AI-generated work to the same standards as hand-authored code.
• Ability to identify which parts of a development workflow are good candidates for automation or AI assistance and which are not.
• Strong working command of containerization and orchestration — building and running services that are scalable, reliable, and operationally simple.
• Experience with major cloud platforms and their managed services, with a preference for platform-native solutions over custom infrastructure.
• Infrastructure as code practices applied consistently across environments.
• Building and maintaining CI/CD pipelines with an emphasis on fast feedback, automated quality gates, and safe deployment patterns.
• Distributed systems fundamentals applied in practice: service communication, event-driven patterns, observability, and fault tolerance.

Application Development

• Deep expertise in C# / .NET — platform internals, async programming, and performance optimization.
• API design and implementation using ASP.NET Core, including REST principles, versioning, and middleware patterns.
• Relational database design, ORM usage, and T-SQL query optimization.
• Front-end development with React and TypeScript, including component design and state management patterns.

Tooling & Quality

• Performance profiling and analysis across both server and client layers.
• Comprehensive testing strategies spanning unit, integration, and end-to-end coverage.
• Security fundamentals: secure coding practices, secrets management, and awareness of common vulnerability classes.

We believe in our commitment to diversity & inclusion.

Equal Employment Opportunity Statement

Cygnus is an Equal Opportunity Employer. We ensure that no one should be discriminated against because of their differences, such as age, disability, ethnicity, gender, gender identity and expression, religion, or sexual orientation.

All our employment decisions are taken without looking into age, race, creed, color, religion, sex, nationality, disability status, sexual orientation, gender identity or expression, genetic information, marital status, citizenship status, or any other aspects of employment protected by federal, state, or local law.

Applicants for employment in the US must have work authorization & Cygnus does not offer any sponsorship of a visa for employment authorization in the United States.

Thanks & Regards

Cygnus Professionals

3490 US Highway 1

Princeton, NJ 08540

M: 732 485 0000 Ext 9057 or 609-566-6868 (Direct)

F: [phone]

E: [e-mail]

LinkedIn: https://www.linkedin.com/in/amit-kumar-341290137/