Senior Staff Backend Engineer

Description
We're more than just a global e-commerce platform - we're transforming how people shop and sell across the world. Our platform empowers millions of buyers and sellers across 190+ markets. We're committed to pushing boundaries and redefining the future of digital commerce.
Our customers are at the center of everything we do. We foster a culture where authenticity thrives, bold ideas are encouraged, and individuals can bring their full selves to work every day. We're building sustainable solutions for our customers, our business, and the broader global community.
Join a team of passionate engineers, innovators, and problem-solvers working together to build scalable platforms and create meaningful economic opportunities worldwide.
What you'll do and learn:

• Independently lead complex technical initiatives within and beyond your team
• Drive technical direction and roadmap, leading across domain teams and guiding key engineering decisions
• Author Architecture Decision Records (ADRs) to define scalable and maintainable solutions
• Own one or more large functional areas with deep subject matter expertise
• Take a systems-thinking approach, proactively addressing performance, security, and scalability
• Drive projects end-to-end, from conception to successful implementation
• Act as a change agent to elevate engineering culture, processes, and best practices
• Enable teams through collaboration, knowledge sharing, and internal tooling
• Identify platform areas that require flexibility and design for future scalability
• Define and advocate for long-term technical vision and modernization strategies
• Lead production support, release management, and on-call responsibilities for a 24/7 platform

Skills
Java, spring boot, graphql, rest api, microservices
Top Skills Details
Java,spring boot,graphql,rest api,microservices
Additional Skills & Qualifications
* Experience supporting platforms with **millions of users and high transaction volumes
* Experience defining and driving architecture across multiple teams and domains
* Strong leadership in a matrixed environment, influencing engineering, product, and business stakeholders
* Experience navigating ambiguous problem spaces and defining technical direction from scratch
* Expertise in event-driven architecture and highly scalable distributed systems
* Experience with GraphQL (preferred)
* Strong understanding of messaging systems (Kafka, ActiveMQ, RabbitMQ, etc.)
* Experience with both RDBMS and NoSQL databases
* Hands-on experience with containers and cloud infrastructure (Kubernetes, Docker, AWS, Google Cloud Platform, Azure)
* Proven success creating and driving adoption of engineering best practices, standards, and tooling
* Experience authoring and socializing Architecture Decision Records (ADRs)
* Strong track record of mentoring engineers and raising the engineering bar
* Experience modernizing legacy systems and creating a long-term technology vision
* Ownership of release management, production support, and on-call responsibilities for critical systems
* Excellent communication skills with a strong sense of ownership and accountability
* Demonstrated ability to balance short-term delivery needs with long-term scalability and maintainability
* Growth mindset with a passion for continuous learning, knowledge sharing, and organizational impact
* Experience influencing engineering culture, processes, and technical excellence beyond their immediate team
* Ability to identify future platform needs and build flexibility and extensibility into system designs
* Experience working across adjacent disciplines such as product management, project management, and people leadership
* Active participation in internal or external technical knowledge-sharing communities
Experience Level
Expert Level
Job Type & Location
This is a Contract to Hire position based out of Toronto, ON.
Pay and Benefits
The pay range for this position is $110.00 - $125.00/hr.
Workplace Type
This is a hybrid position in Toronto,ON.

propos de TEKsystems et TEKsystems Global Services

Nous sommes un fournisseur de services aux entreprises et de technologies. Nous acclrons la transformation de nos clients. Notre comptence en stratgie, conception, excution et oprations libre la valeur de l'entreprise par un ventail de solutions. Nous sommes une quipe de 80 000 personnes qui collaborent avec plus de 60 000 clients, notamment 80 % du Fortune 500 en Amrique du Nord, Europe et Asie, qui collaborent avec nous dans le cadre de nos capacits full-stack et notre rythme. Nous sommes des penseurs stratgiques, des collaborateurs pratiques qui aident les clients exploiter le changement et matriser le dynamisme de la technologie. Nous btissons le futur en livrant les rsultats et en crant un impact positif dans nos communauts mondiales. TEKsystems et TEKsystems Global Services sont des entreprises d'Allegis Group. Dcouvrez d'autres informations TEKsystems.com.

Ordonnance sur l'galit des chances de San Francisco: Conformment l'Ordonnance sur l'galit des chances de San Francisco, pour tous les postes situs dans la ville et le comt de San Francisco, nous examinerons les candidatures des personnes qualifies ayant un casier judiciaire ou des antcdents criminels.

Utilisation de l'intelligence artificielle (IA): Nous pouvons utiliser l'intelligence artificielle (IA) pour soutenir certaines tapes de notre processus d'embauche, notamment la recherche, la prslection et l'valuation des candidatures. L'IA aide analyser les candidatures et les qualifications, mais les dcisions finales sont prises par notre quipe de recrutement. En soumettant votre candidature, vous reconnaissez et acceptez que celle-ci puisse tre examine l'aide d'outils d'IA.

About TEKsystems and TEKsystems Global Services

We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.econnaissez et acceptez que celle-ci puisse tre examine l'aide d'outils d'IA.