Senior Software Engineer - Fluent OMS

As a Senior Software Engineer – Fluent OMS, you’ll play a pivotal role in the design, delivery, and optimization of Fluent-based Order Management Systems and Point of Sale integrations for enterprise retail clients across the Americas and Europe. You’ll operate within a cloud-native, serverless architecture, working with modern composable commerce platforms and scalable integrations
You’ll act as a technical authority and trusted partner, contributing to the architecture and delivery of composable commerce OMS and POS, while mentoring team members and collaborating with senior stakeholders to deliver value at scale.

• Lead the design, implementation, integration, debugging, and support of Fluent OMS solutions, incorporating robust workflows and real-time event-driven processing.
• Plan and coordinate the development and integration of Fluent OMS solutions into enterprise retail environments, including web and mobile commerce applications.
• Author clean, maintainable, well-documented code following industry best practices and coding standards.
• Develop logical and physical specifications for OMS and POS integrations, ensuring scalability, reliability, and maintainability.
• Apply expertise in event-driven architectures, microservices, API development (REST/GraphQL), and message brokers (Kafka, SQS) to ensure reliability and performance.
• Create scalable data, process, and integration models for OMS and POS systems.

• Assess, test, and troubleshoot OMS implementations, including root cause analysis and tracing complex fulfillment flows.
• Address and resolve production issues using incident management systems, performing trend analysis to propose proactive enhancements.
• Upgrade systems and develop maintenance procedures for OMS, related applications software, and communications environments to improve long-term stability.
• Advocate for and implement continuous improvement through regression testing, CI/CD, automation, and performance optimization.

• Develop and maintain comprehensive OMS documentation, including architecture diagrams, API specs, manuals, and user-facing materials.
• Deliver training sessions and workshops for internal and client teams on Fluent OMS usage, workflows, and debugging best practices.

• Collaborate cross-functionally with designers, product managers, and stakeholders to align requirements, prioritize features, and oversee installation and operational readiness.
• Perform code reviews, mentor peers, and promote a collaborative, high-performing team culture.
• Evaluate emerging technologies, including AI-enhanced development workflows, and apply them to retail commerce challenges.

• Bachelor’s degree in computer science, software engineering, or related discipline (or equivalent experience).
• Fluent OMS Certification is required.

• Experience implementing Fluent OMS is mandatory — demonstrated track record of taking Fluent OMS from development through to production in real-world enterprise retail environments with customers $500M and up. 
• Minimum 5+ years of backend software engineering experience as a computer programmer, with proven expertise in enterprise-grade composable commerce and retail systems.
• Prior experience with training and enablement programs within OMS projects.
• Domain experience in furniture retail and franchisees is a nice to have.

• Proficiency in Java 7, including hands-on experience with core Java functionality.
• Solid experience designing and managing workflows, with exposure to workflow orchestration tools or engines.
• Strong background in OMS documentation and ability to translate complex systems into clear, actionable materials.
• Proven ability in OMS debugging — root cause analysis, tracing complex fulfillment flows, and resolving production incidents.
• Expertise in event-driven architectures, microservices, API development (REST/GraphQL), and message brokers (e.g., Kafka, SQS).
• Familiarity with serverless/cloud-native environments such as AWS Lambda, DynamoDB, and Step Functions.
• Comfortable in Agile/Scrum environments with knowledge of CI/CD pipelines and DevOps practices.
• Familiarity with commerce platforms (e.g., Commercetools, Shopify Plus, Elastic Path, Adyen) is a plus.
• Experience with AI-enhanced development techniques specifically for Fluent OMS workflows and rules.*

• Excellent communication skills — capable of delivering both technical training and stakeholder-facing presentations.
• A mindset of continuous learning, with a demonstrated ability to adapt to new technologies and trends.*
• Ability to perform code reviews, mentor peers, and promote a collaborative, high-performing team culture.

*AI expectations will vary by role — some positions will focus on AI exploration and experimentation, while leadership roles may drive AI adoption and strategy.

You’ll thrive in this role if you:

• You enjoy solving complex, high-impact challenges in modern retail operations, especially those involving OMS and workflow orchestration.
• You value both high-quality craftsmanship and pragmatic delivery.
• You’re energized by teaching and elevating teams, grounding your influence in both domain knowledge and hands-on execution.
• You adapt well to evolving technologies in cloud-native, serverless, composable commerce environments.
• You proactively seek continuous learning and improvement—for yourself, your craft, and your team.

We care a lot about our culture and the people who are part of the team, so there are certain characteristics we look for in each person. 🦸🏻

• Ability to express ideas
• Work under pressure
• Results oriented
• Leadership
• Effective communication skills
• Problem solver
• Proactivity
• Responsibility
• Commitment
• Honesty
• Kindness
• Organizational skills
• Teamwork
• Taste for learning new technologies
• Ability to work independently and in a team
• Self-study and research

If you would love to work in a company that is constantly looking for growth and development, this is the opportunity you've been waiting for. 🚀 We are a company that makes digital experiences a reality and as such we have to always be at the forefront of technology. We care a lot about people, their welfare, happiness and development in every aspect. 

Why work with us?

• Remote work - work from home 💻
• You will have fun and have good times together with extraordinary colleagues.
• You will work towards goals and objectives.
• You set the development and professional growth, and we do what we can to support you. 
• You decide where you want your career to go and we grow together.
• Benefits of law.
• Benefits ABOVE the law.
• Cool work environment, with happy people. 😊 

Orium is the leading composable commerce consultancy and systems integrator in the Americas. We have over a decade of experience in digital programs, working closely with best-in-class technology partners to bring modern commerce experiences to life as a member of the MACH Alliance.

We’re a remote-first company of over 200 awesome employees. A certified BCorp for over a decade, we’re headquartered in Toronto, Canada with a global studio presence, drawing from a range of talents and perspectives to bring together data, systems thinking, and curiosity to build next-generation experiences. We’re building deep capabilities in data-driven design, AI implementation, and personalization while forming strong partnerships with leaders in machine learning, hardware development, and IoT platforms.

In June 2024, we acquired Mexico-based e-commerce agency, Gluo.

We are committed to fostering an inclusive and accessible environment as we build a workforce that reflects the diversity of the community in which we live, including those with disabilities. We are dedicated to providing accommodations in all parts of the hiring process in accordance with the Accessibility for Ontarians with Disabilities Act and the Ontario Human Rights Code. If you require any accommodation, we will work with you to meet your needs.

We look forward to hearing from you!

#LI-Remote