Senior Developer

Is this you?  Are you an experienced Senior Developer with a passion for troubleshooting and debugging complex issues across the stack?

Do you want to be a part of an innovative team in the cloud space?

If so, then this is the job for you!

Who are we?

Glad you asked!

Opti9 is a trusted cloud solutions provider committed to delivering industry-leading, tailored solutions that meet the unique needs of businesses across a wide range of industries.

We are a premier Veeam partner, as well as an AWS Premier Consulting Partner and Certified Solution Provider.

Our expertise includes managed cloud, backup and replication, disaster recovery, security, and Microsoft 365 solutions.

In the public cloud space, we specialize in migration, optimization, transformation, and cloud-first application consulting.

What sets us apart?

A fun, casual, and collaborative culture that embraces fresh ideas, innovation, and a strong customer-first mindset.

At Opti9, we work hard, support each other, and never shy away from a challenge.

We believe in balancing results with a positive team spirit—and we’re always on the lookout for authentic, accountable individuals who are ready to grow with us and make an impact.

What would you do?

Our Senior Developer will be responsible for developing and maintaining Python based API services and PHP-based applications.

Additionally, this role will be responsible for maintaining scalable web applications, enhancing system performance and ensuring security and performance across distributed systems.

The ideal candidate will have 5+ years' experience as a full stack developer with a deep understanding of designing and implementing microservices architectures.

Primary Responsibilities : Develop, maintain, and optimize Python based API services and PHP-based applications Architect and implement microservices using Docker and containerized environments Work with Vanilla PHP and MVC frameworks like Zend / Laravel to build and maintain scalable web applications Enhance system performance using caching mechanisms (REDIS / ElastiCache) for optimized data access Utilize ElasticSearch for time-series data processing, fast search capabilities, and writing queries and aggregations Implement message queues for efficient asynchronous processing Develop interactive user interfaces using JavaScript, jQuery, and Bootstrap Ensure security, scalability, and performance of applications across distributed systems Troubleshoot and debug complex issues across the stack Knowledge and Experience : 5+ years of professional experience as a Full stack Developer Strong expertise in Python (FastAPI / FlaskApi) and PHP (Vanilla PHP & MVC frameworks like Zend, Laravel,or CodeIgniter) Experience in designing and implementing microservices architectures Proficiency in Docker and container orchestration Knowledge of caching strategies (e.g., Redis, Memcached, ElastiCache) Hands-on experience with ElasticSearch for search and analytics Experience working with message queues (e.g., RabbitMQ, Kafka) Strong frontend skills with Vanilla JavaScript, jQuery, and Bootstrap Expertise in Python Celery for distributed task processing Expertise in WebSockets for real-time communication Experience with implementing SAML IDP integration with JIT Understanding of RESTful API design, authentication, and security best practices Familiarity with CI / CD pipelines and cloud-based deployments Experience with SQL and NoSQL databases Work onsite a minimum of 2x per week in our Ottawa office What do you get from us?   At Opti9, we believe work should be more than just a job—it should be a place where you feel valued, supported, and excited to grow.

When you join our team, here’s what you can expect : Flexible Work Options – Enjoy the flexibility of a hybrid schedule with a mix of remote and in-office work Paid Time Off – Generous PTO and paid holidays so you can recharge, take care of what matters, and bring your best self to work Health & Dental Coverage – Comprehensive insurance plans to keep you and your family healthy including EAP benefits Wellness Reimbursement – An annual benefit to support your physical and mental well-being, covering a wide range of health-related expenses Retirement Plan with Company Match – Invest in your future with our matched retirement savings program Casual, Supportive Culture – We keep things laid-back but focused, with a strong emphasis on teamwork and accountability Recognition & Rewards – We celebrate wins and recognize contributions with regular programs that highlight your impact Professional Development – Access learning opportunities, training programs and support for certifications to help you grow your career  Give Back Together – Participate in group volunteer opportunities and community initiatives that align with our values A Place You’ll Want to Be – We’re building a team of great people doing meaningful work—and we have fun doing it Opti9 provides equal employment opportunities to all employees and applicants for employment without regard to race, color, ancestry, national origin, gender, sexual orientation, marital status, religion, age, disability, gender identity, results of genetic testing, service in the military, or any other legally protected characteristic.

Our hiring process includes AI screening for keywords and minimum qualifications.

Recruiters review all results.

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