Job Description

About Us:

Target is an iconic brand, a Fortune 50 company and one of America’s leading retailers.

Target as a tech company? Absolutely. We’re the behind-the-scenes powerhouse that fuels Target’s passion and commitment to cutting-edge innovation. We anchor every facet of one of the world’s best-loved retailers with a strong technology framework that relies on the latest tools and technologies—and the brightest people—to deliver incredible value to guests online and in stores. Target Tech is on a mission to offer the systems, tools and support that guests and team members need and deserve. Our high-performing teams balance independence with collaboration, and we pride ourselves on being versatile, agile, and creative. We drive industry-leading technologies in support of every angle of the business, and help ensure that Target operates smoothly, securely, and reliably from the inside out.

We are looking for highly motivated engineering professionals who can help connect the dots of end-to-end performance, enabling our product teams the insight and recommendations to maximize cross environmental performance. You’ll put your skills, experience, and passion to work in an entrepreneurial environment where success is rewarded. Individuals in this role will have opportunities to gain a large breadth of knowledge by working with experts in core infrastructure services and product development and share their knowledge with a tech hungry team.

About This Opportunity:

As a Lead Engineer in Performance Engineering (NoSQL), you serve as the technical anchor for the engineering team that supports a product. You create, own and are responsible for the application architecture that best serves the product in its functional and non-functional needs. You identify and drive architectural changes to accelerate feature development or improve the quality of service (or both). You have deep and broad engineering skills and are capable of standing up an architecture in its whole on your own, but you choose to influence a wider team by acting as a “force multiplier”.  You have excellent problem-solving skills. You love keeping abreast of the latest industry trends and use them to help you innovate. You have leadership qualities, good judgment, and clear communication skills. If you’re excited to work on a fast-moving, tightly knit team and build solutions to unsolved problems, we want to meet you.

Use your skills, experience, and talents to be a part of groundbreaking thinking and visionary goals.

As a Lead Engineer in Performance Engineering, you’ll have the opportunity to:

Design, implement and support tools aimed at defining key performance criteria in the NoSQL space (Cassandra, Mongo, Redis, JanusGraph and Neo4J) and dependent infrastructure components
Develop APIs enabling the ability to obtain "self-service" recommendations on things like:
Improving query performance
Optimizing data models
Evaluating and tuning JVMs
Instituting architectural best practices
Develop and implement observability of common key NoSQL performance metrics while leveraging capabilities like profiling and tracing
Engage directly as needed to support product teams performance goals in their use of NoSQL technologies
Collaborate with the core team to promote, re-use and develop consistent technical build, implementation and support processes following the agile design and documentation methodology
Develop software and systems on test driven development and continuous integration practices
Unit test code and create automated test scripts
Consult with key development partners to refine data models ensuring optimal performance
Monitor and maintain existing environments
Research related products and make necessary software recommendations
Innovate constantly and maintain the technical edge

About You:

5+ years of software and database development experience with at least one full implementation from requirement to production
Familiarity with appropriate NoSQL use cases (Wide Column, Doc Store, Cache, Key Value, Graph, etc.) and extensive experience with at least one of the technologies (Cassandra, MongoDB, Redis, Neo4J, JanusGraph) which fill those cases
Strong problem solving
Strong sense of ownership and the ability to work with a limited set of requirements
Team attitude, partnership skills
Good verbal and written communication skills

Preferred Qualifications:

BS or MS in computer science or equivalent
Solid understanding of the CAP Theorem and distributed computing
Experience in monitoring, performance tuning and managing NoSQL clusters

Exposure to either Cassandra clusters or MongoDB clusters preferred

Strong understanding of complex query tuning
In-depth knowledge of architecting, developing on, and optimizing NoSQL database systems
Experience in data structure design, data modelling for NoSQL use cases
JVM tuning a definite “plus”
Experience with identifying hardware and software related issues
Experience assisting with the design, implementation, and on-going support of NoSQL environments
Experience with one or more scripting languages (Golang, Bash, Python, Ruby, Java, etc)
CI/CD chain familiarity
Experience with Full Stack Development
Proven experience in managing NoSQL data base environments supporting critical 24/7 applications
Experience with designing and support for data migration activities.
Demonstrated ability to learn new technology and lead the adoption of successful patterns
Experience working in an agile environment (i.e. user stories, iterative development, etc.)
Working with test-driven development and software test automation

Some technologies which are critical to the work we do:

Golang
Docker
Kafka
GitHub
Artifactorÿ
Telegraf
InfluxDB
Postgres
Oracle
Cassandra
Mongo
Elastic
Redis
Grafana
Kubernetes