Senior Software Engineer

Atlas; Northern (KY); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Flexible PTO

Birthday off

Parental Leave Program

Growth opportunities

Job summary

Atlas HXM is seeking a Senior Software Engineer (Full Stack) to join our Platform Services team and drive end‑to‑end development of a scalable, cloud native SaaS platform for global HR professionals.

You will design and implement core UI with React and build robust microservices using C#/.NET Core, collaborate with product owners, and ensure security and compliance across the stack. This is a fast‑paced, agile role with a focus on quality and impact.

Qualifications

• Bachelor’s degree in computer engineering, computer science, or related technical field, or equivalent work experience.
• 5+ years of progressive work experience in cloud B2B SaaS solutions development including hands-on coding, modern software architecture, open source, containers, and security.
• Proficient in front-end JS frameworks like React JS (Preferred), Angular, Vue.
• Proficient in object-oriented programming languages, experience with .NET Core and C#.
• Knowledge of REST, API Design, API Security Framework, API Management, OpenAPI, Apigee,
• Experience working in microservices architecture, cloud native applications, SOA.
• Understanding of how to design software to support scalability, responsiveness, security and maintainability, and the ability to reason and articulate the design.
• Strong computer science fundamentals, OOAD, SOLID and Design Patterns.
• Familiar with Relational Database Development, Modelling, and Performance Optimization.
• Proven track record of developing complex multi‑layer client enterprise architecture.
• Prior experience working TDD.
• Passionate about building software of the highest quality. An open mind to learn new things and the curiosity to understand how things work.
• Experience developing software solutions within HRIS, Payroll, Tax or Payment Process companies is desirable.

Responsibilities

• The Senior Software Engineer is part of an agile scrum team that is composed of cross functional team members with the capability to develop a product end-to-end and the expectation is to collaborate with other Engineers towards the development of platform microservices (C#, Asp.Net Core Web API, SQL, NoSQL) and UI (React Micro frontend/Container).
• Participate in building the core UI architecture, based on latest ReactJs framework and Micro Frontend pattern. Contribute technically through hands‑on feature development, code reviews, technical design documents, debugging operational issues and process streamlining.
• Collaborate with product owners and other business partners to understand and refine requirements that drive innovative cloud native B2B SaaS solution architecture, technology, and tools.
• Participate in architecture/design discussions and contribute towards the end-to-end journey from inception of the baseline architecture to a customer approved product.
• Provide technical support for the users of the Atlas platform.
• Perform proof‑of‑concept as needed to determine technology solutions.
• Identify open source and commercial solutions for integration.
• Define solution API's and integration with third party systems.
• Participate in security and compliance architecture and implementation to ensure solutions comply with corporate and regulatory policies.

Skills

React

.NET Core

C#

REST API

Microservices

Cloud Native

TDD

OO Design

OpenAPI

Security

Education

Bachelor’s in CS/CE or equivalent

Tools

SQL

NoSQL

OpenAPI tooling

Cloud platforms (Azure/AWS)

Job description

Atlas HXM is the global workforce platform built on compliance. We help companies determine how to engage each member of their workforce and then execute with accountability built in — direct Employer of Record (EOR), Agent of Record (AOR), payroll, and compliance capabilities backed by a decade of practitioner-led expertise. Recognized as a category Leader by NelsonHall and Everest Group, Atlas HXM builds Human Experience Management into everything we do, guided by our "For People, by People" principle.

The future of work is borderless, and so are we. Our people are located around the globe — in the U.S., the UK, India, Colombia, China, and beyond. Diversity and belonging are not just values; they are who we are.

We are also committed to making a positive impact. Through our Environment, Social, and Governance (ESG) impact initiative, we are addressing our environmental footprint and promoting social responsibility. Our impact program is central to our vision and culture, focusing on employee wellness, diversity, charitable work, and ethical corporate governance.

Position Overview

You’ll be joining our innovative product team in building a game-changer SaaS platform that empowers global business and HR professionals to manage and pay their global workforce with state-of-the‑art technology and a unique, simplified User experience.

A revolution cannot be done alone, and we need the best and brightest talent to continue our growth into the new modern workplace. We are looking to expand our team by hiring a new Senior Software Engineer (Full Stack) for our Platform Services portfolio, a team player who is ready to make the role their own and bring their own ideas and innovations to the table. Reporting to the Director of Engineering, you will be joining our Atlas HXM Development team and shaping new, innovative solution architecture, helping create clean code, and being involved in designing cloud native features and capabilities. You will get the chance to work on all parts of the application with a team of brilliant minded and outcomes driven people

Key Responsibilities

• The Senior Software Engineer is part of an agile scrum team that is composed of cross functional team members with the capability to develop a product end -to-end and the expectation is to collaborate with other Engineers towards the development of platform microservices (C#, Asp.Net Core Web API, SQL, NoSQL) and UI (React Micro frontend/Container).
• Participate in building the core UI architecture, based on latest ReactJs framework and Micro Frontend pattern. Contribute technically through hands‑on feature development, code reviews, technical design documents, debugging operational issues and process streamlining.
• Collaborate with product owners and other business partners to understand and refine requirements that drive innovative cloud native B2B SaaS solution architecture, technology, and tools.
• Participate in architecture/design discussions and contribute towards the end-to-end journey from inception of the baseline architecture to a customer approved product.
• Contribute technically through hands‑on feature development, code reviews, technical design documents, debugging operational issues and process streamlining.
• Provide technical support for the users of the Atlas platform.
• Perform proof‑of‑concept as needed to determine technology solutions.
• Identify open source and commercial solutions for integration.

Define solution API's and integration with third party systems.

• Participate in security and compliance architecture and implementation to ensure solutions comply with corporate and regulatory policies.

About You

• Bachelor’s in computer engineering, computer science, or related technical field, or equivalent work experience.
• 5+ years of relevant progressive work experience in cloud B2B SaaS solutions development including hands‑on coding, modern software architecture, open source, containers, and security.
• Proficient in front‑end JS frameworks like React JS (Preferred), Angular, Vue.
• Proficient in object‑oriented programming languages, experience with .NET Core and C#.
• Knowledge of REST, API Design, API Security Framework, API Management, OpenAPI, Apigee,
• Experience working in microservices architecture, cloud native applications, SOA.
• Understanding of how to design software to support scalability, responsiveness, security and maintainability, and the ability to reason and articulate the design.
• Strong computer science fundamentals, OOAD, SOLID and Design Patterns.
• Familiar with Relational Database Development, Modelling, and Performance Optimization.
• Proven track record of developing complex multi‑layer client enterprise architecture.
• Prior experience working TDD.
• Passionate about building software of the highest quality. An open mind to learn new things and the curiosity to understand how things work.
• Experience developing software solutions within HRIS, Payroll, Tax or Payment Process companies is desirable.

What We Value

• You are a self‑starter, and self‑motivated team player.
• You are curious by nature and persistent to find the solutions.
• You can thrive in a fast‑paced, agile environment.
• You have excellent verbal and written communication skills.
• You have strong fluency in English.

This position description may not describe all duties, responsibilities, and skills associated with this position. It is intended to portray the major aspects of the job. Other duties or skills may be required.

What We Offer

• The opportunity to work with a purpose — simplifying global expansion across borders and cultures
• A diverse and inclusive environment
• Country‑specific benefits
• Flexible PTO
• Your birthday off and a day for you to volunteer and give back to the organization of your choice
• Generous Parental Leave Program
• Growth and development opportunities with access to a top learning content provider
  
• The opportunity to challenge yourself in a high‑performing organization and leave each day knowing you have made an impact.

Atlas Technology Solutions, Inc. (Atlas HXM) is an Equal Opportunity Employer and Prohibits Discrimination and Harassment of Any Kind: Atlas HXM is committed to the principle of equal employment opportunity for all employees and to providing employees with a work environment free of discrimination and harassment. All employment decisions at Atlas HXM are based on business needs, job requirements and individual qualifications, without regard to race, color, religion or belief, national, social or ethnic origin, sex (including pregnancy), age, physical, mental or sensory disability, HIV status, sexual orientation, gender identity and/or expression, marital, civil union or domestic partnership status, past or present military service, family medical history or genetic information, family or parental status, or any other status protected by the laws or regulations in the locations where we operate. Atlas HXM will not tolerate discrimination or harassment based on any of these characteristics. Atlas HXM encourages applicants of all ages.

Atlas HXM will provide accommodation on request throughout the recruitment, selection and assessment process for applicants with disabilities.

Hiring decisions are based upon Atlas HXM’s operating needs, and applicant merit including, but not limited to, qualifications, experience, ability, availability, and location.

This role will be subject to a background check under local law after an employment offer has been made. Employment may be subject to results. In addition, references may be requested at the final stage of the process.

Atlas HXM will only email candidates from an “@atlashxm.com ” email address. Candidates should ignore communications purporting to be from Atlas HXM that originate from any other email address. Atlas HXM will never ask candidates or employees to purchase gift cards or otherwise make payments in connection with applying for a job with Atlas HXM.

Atlas HXM uses AI‑assisted tools to help our recruiters screen applications and match candidate qualifications to role requirements. However, all hiring decisions are made by humans.

As a candidate, you have the right to: (a) request that your application be reviewed without AI‑assisted screening, (b) receive an explanation of how AI was used in evaluating your application, (c) contest a decision you believe was influenced by an automated process, (d) request an alternative assessment format if a disability affects your engagement with any part of our process, or (e) withdraw your application at any time. To exercise any of these rights or ask questions, contact us at [e-mail] and we will respond within seven (7) business days.

We are committed to fair, non‑discriminatory use of AI and comply with all applicable laws. By submitting your application, you acknowledge that you have been informed of and consent to our use of AI‑assisted tools as described above.