Staff Software Engineer

HNM Systems

HNM Systems is the leading tech-enabled professional services provider, shaping the workforce across the telecom, energy, and technology sectors. We connect specialized talent with direct hire, contract-to-hire, and consulting opportunities that support fiber expansion, digital infrastructure, wireless networks, and smart grid energy solutions. Our innovative approach delivers high-impact outcomes, with a 94% success rate in talent placement and project execution. Relentlessly people-driven, HNM Systems sets the industry standard through exceptional employee experience and long-term client value.

Why This Opportunity Stands Out

This is an opportunity to play a pivotal technical leadership role supporting large-scale enterprise platforms that impact critical business operations. You will influence architectural strategy, guide distributed engineering teams, and help shape cloud-native solutions built for reliability and scale. The role offers a strong balance of hands-on engineering and technical leadership, making it ideal for experienced engineers who enjoy solving complex technical challenges while mentoring others. You'll work with modern AWS technologies and enterprise-grade systems in a highly collaborative environment.

Overview

Our customer is seeing a Staff Software Engineer to build and evolve core enterprise systems while providing technical leadership across globally distributed teams. This role combines architecture, software development, mentoring, and operational ownership to deliver secure, scalable, and reliable enterprise applications.

Key Responsibilities

• Lead development teams in delivering complex software projects on time and within budget.
• Provide technical guidance, mentorship, and support to engineering teams.
• Design and develop technology solutions that meet business requirements and long-term strategic objectives.
• Take technical responsibility throughout all phases of the software development lifecycle.
• Provide architectural leadership and technical direction to project stakeholders.
• Collaborate across teams to develop scalable and innovative software solutions.
• Drive best practices related to architecture, performance, scalability, and reliability.
• Support engineering excellence through technical reviews, problem-solving, and continuous improvement initiatives.
• Partner with cross-functional teams to define and deliver product features and technical designs.
• All other duties as assigned.

Required Qualifications

• 10+ years of experience in enterprise software development environments.
• Strong experience developing API and middle-tier applications using ASP.NET Core and C#.
• Extensive experience with Microsoft .NET, ASP.NET MVC, APIs, and ASP.NET Core technologies.
• Significant AWS cloud development experience, including:

API Gateway

Lambda

EC2

ECS

SQS

SNS

Fargate

DynamoDB

AuroraDB

• Expert-level knowledge of software architecture, design patterns, data structures, scalability, and reliability principles.
• Strong understanding of object-oriented programming and multithreaded application development.
• Experience with concurrency control and performance optimisation.
• Strong database design and data modelling experience.
• Excellent analytical and problem-solving skills.
• Demonstrated technical leadership experience on software development projects.
• Ability to work across multiple initiatives and technologies simultaneously.
• Strong communication, planning, and collaboration skills.
• Experience working effectively with distributed and cross-functional teams.

Education

• Bachelor's or Master's degree in Computer Science, Engineering, or a related technical field.

EEO / Disclaimer

Benefits may include medical, dental, and vision coverage, and other programs offered in accordance with applicable plan terms and local requirements. The above statements are intended to describe the general nature and level of work being performed by the individual(s) assigned to this position. They are not intended to be an exhaustive list of all duties, responsibilities, and skills required. Job descriptions are subject to revision based on business needs and client requirements.

HNM Systems may utilize legally permissible background checks and other pre-employment screening processes, where relevant to the position and in accordance with applicable Costa Rican law. Any collection and processing of personal information will be handled in line with applicable privacy and data protection requirements. Applicants must be legally authorized to work in Costa Rica and, where applicable, maintain any immigration or work authorization required for employment in the country.

HNM Systems is committed to providing equal employment opportunity and fair treatment in accordance with applicable Costa Rican law. All qualified applicants will be considered based on merit, qualifications, and business needs, without unlawful discrimination.