Backend Developer, Machine Learning

ABOUT PLUSGRADE

Travel is not just about the destination; it's about every memory made along the way. We are dedicated to shaping the future of travel by partnering with 250 airline, hospitality, cruise, passenger rail, and financial services companies to create new, meaningful revenue streams through incredible customer experiences. Rooted in our core values of being ambitious, innovative, and collaborative, we are driven to continuously raise the bar, exceed expectations, and bring out the best in everyone, fostering a culture where we believe we are better together, working towards an extraordinary future in travel.

Come help us transform everyday travel into extraordinary experiences.

ABOUT THE ROLE

As the ML Engineer for the ML Applications team, you will be responsible for designing, developing, and deploying innovative machine learning platform solutions to solve challenging business problems. This role requires a strong foundation in software development, a passion for cutting-edge technology, excellent problem-solving skills, and the ability to work independently and collaboratively within a fast-paced environment.

This role reports to the Director, ML Applications.

WHAT YOU WILL BE DOING:

• Work in a small team passionate about enabling ML applications throughout the organization
• Productionize, scale, and productize cutting-edge machine learning solutions
• Design and develop scalable and robust ML pipelines for predictive data to be consumed by downstream applications to improve the main KPIs, such as member engagement, revenue, and others
• Design and develop robust processes to monitor production ML pipelines
• Support production systems to deliver batch and streaming real-time model predictions to all applications
• Actively participate in solution design and modeling to ensure ML products are developed according to best practices, standards, and ML architectural principles
• Work closely with our Product, Engineering, and Marketing teams to build the data and ML solutions to address business-critical questions
• Deploy models and evaluate their performance; constantly test and improve
• Responsible for model retraining, drift monitoring, pipeline automation, quality control, and governance of production models
• Work closely with the OPS team to provide the necessary production support

YOU ARE SOMEONE WITH

• 4 years work experience with ML pipelines and ML-based Python development
• Strong knowledge of general software engineering principles and practices

Expertise with RESTful APIs

• Experienced building ML- and LLM-based recommendation systems
• Experience designing and developing back-end components for low-latency and highly-scalable solutions
• Working knowledge of ML Ops principles and CI/CD
• Experience managing the machine learning algorithm lifecycle
• Knowledge of ML-based application design principles
• Experience with containers and related infrastructures, such as Docker and Kubernetes
• Familiarity with native AWS tools
• Strong optimization and debugging skills
• Self-disciplined, motivated, eager to help, and most importantly, a thirst for continual learning
• Effective communicator and collaborator, both within the immediate team and across other organizational units
• Team spirit and a problem-solver mindset

NICE TO HAVES

• Knowledge of data science principles
• Experience with prompt engineering, retrieval-augmented generation (RAG), and vector databases

AWS Architect certification

• Experience with web application development and UI/UX optimization
• Experience with the design, implementation, and deployment of machine learning algorithms
• Experience with relational databases and in-memory storage

OUR TECH STACK

• Languages: Python, SQL, Spark, PySpark
• Tools: Snowflake, SnowPark, Splunk
• AWS Services: EKS, SageMaker, Bedrock, DynamoDB, Kinesis, RedShift, Lambda and others
• Containerization: Kubernetes, Docker

Version Control: GitLab

• Data & Analytics: Dataiku, Tableau

WHAT YOU’LL LOVE ABOUT US:

🏦 RRSP Matching

🏥 Comprehensive Health Plans

📅 Flexible Paid Time Off

✈️ Travel Experience Perk

🧘 Annual Wellness Perk

🚆 Commuter Perk

🌅 Tenure-based Work From Anywhere Program

🍼 Parental Leave Top Up

🌍 Adventure Pass

🎓Learning Allowance

OUR PROCESS

Plusgrade is an equal-opportunity employer and is committed to providing an accessible recruitment process. We welcome applications from all qualified individuals and are committed to equal employment opportunities regardless of gender identity or expression, race, ethnic origin, creed, place of origin, age, sex, marital status, physical or mental disability, sexual orientation, and any other category protected by law. Upon request we will provide accommodation for applicants with disabilities.

If you have a preference regarding the language of your interviews, please inform our Talent Team when they reach out to you.

We believe in diversity and inclusivity and that is why our interview process is designed for a positive candidate experience and to ensure every candidate is evaluated equally. We may utilize technology-assisted/ artificial intelligence tools to help us screen, assess, and select applicants for this position. This job posting is for an existing vacancy.

All applications will be reviewed from our Talent Team and the successful candidate(s) will go through the following recruitment process:

Recruiter Phone Interview

Hiring Manager Interview

• Test or case study or take-home assessment (if applicable)

Team Interview

All candidates will be provided with feedback regardless if they pass or didn’t pass any of our interview stages. All your information will be kept confidential.

The base salary range is tailored to the advertised location and determined by several factors, including candidate expertise and internal peer equity. Final placement is based on a candidate’s specific skill set and experience relative to the role's requirements.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.