FastAPI Jobs in Cincinnati.
All active FastAPI roles based in Cincinnati.
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Senior Software Developer
Callibrity is a developer owned and managed custom software development consulting company that is dedicated to creating quality software using modern technologies and adding unquestionable business value to companies across multiple industries and verticals. We are problem solvers...people who like a challenge and enjoy working with modern tech stacks. We offer an incredibly collaborative culture and enjoy solving complex problems with our clients. If you are looking for a company where you can grow in your career and that values people, transparency, and flexibility we would like to talk to you.
As a Senior Software Engineer, you are a leader by example, you are a subject matter expert, and you help lead strategic technical direction. You will get to interact with key client stakeholders on a regular basis and use your experience to prove business ROI through innovative greenfield technology solutions. Software Engineer typically have longer tenures and higher retention rates with Callibrity than other companies because the work is challenging and rewarding, we have a strong engineering culture, and we invest in the best people.
Responsibilities:
- Are trusted advisors to our clients and seen as thought leaders in the tech industry
- Are keenly aware of big picture business problems and goals and capable of a leadership role
- Mentor, train, and upskill your Callibrity peers and clients’ teams
- Can solve a wide variety of problems with the appropriate solution drawn from a large subset
- Communicate complex ideas effectively, both verbally and in writing
- Proactively identify problems, challenges, and issues and recommend the best possible solution
- Demonstrate mastery and cable to teach software development best practices (Agile, DevOps, Test Automation, CI/CD, TDD) to others
- Stay ahead of the curve by exploring new technologies including AI, Machine Learning, Cloud, and IoT
- Thrive in an environment where there is close interaction among different roles and teams
- Are admired by the client as someone they can count on, regardless of title or seniority
Requirements:
- 5+ years of experience with web application development and/or SaaS platforms.
- Extensive senior-level development experience with object-oriented languages in Python, FastAPI/Flask, or Java
- Proven experience leading the technical delivery of complex and innovative business functionality.
- Strong understanding of software engineering principles such as design patterns, algorithms, and data structures, and demonstrable application of each in recent projects.
- Cloud experience with AWS, Azure, and/or Google Cloud Platform preferred
- Experience with Docker, Kubernetes, and/or developing applications for a major public cloud provider is a proactive owner who takes accountability for code from development through production.
- Strong knowledge of performance engineering and performance testing.
- Experience with integration technologies (RESTful APIs, messaging systems, etc.)
- Relevant professional experience in Information Technology and/or Consulting
- Four-year degree or successful completion of respected bootcamp/accelerator, or extensive mentorship program
- Successfully solve Callibrity’s CoderPad and Code Pairing Challenges
- Interpersonal skills: Influencer, professionalism and accountability, passion for learning, us not them mentality, shared responsibility
- Embodies Callibrity’s Core Values
- Must be authorized to work in the United States, without sponsorship
Benefits of Being a Callibrity Consultant:
- Health/Vision/Dental insurance effective first day of employment
- 401k match vested immediately
- Profit Sharing Bonus
- Annual professional development stipend ($1,500)
- Paid parental leave
- Paid bench time
- Paid flex time for training, blogging, speaking engagements, and thought leadership
- Paid time off (3–5 weeks depending on level) + 8 holidays
- Competitive industry salary
- Lunch and learns
- Team building events
- Small company feel with the stability of a proven business model
- High employee retention and satisfaction (One of Cincinnati’s Best Places to Work!)
Ready to apply?
Apply to Callibrity
Director, Software Engineering - Agentic Foundations (P4474)
84.51° Overview:
84.51° is a retail data science, insights and media company. We help The Kroger Co., consumer packaged goods companies, agencies, publishers and affiliates create more personalized and valuable experiences for shoppers across the path to purchase.
Powered by cutting-edge science, we utilize first-party retail data from more than 62 million U.S. households sourced through the Kroger Plus loyalty card program to fuel a more customer-centric journey using 84.51° Insights, 84.51° Loyalty Marketing and our retail media advertising solution, Kroger Precision Marketing.
84.51° follows a 5‑day in‑office work schedule to support collaboration, alignment, and team connection.
Join us at 84.51°!
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Director, Software Engineering – Agentic Foundations (P4474)
PREFERRED LOCATION: Cincinnati / Chicago
SUMMARY:
The AI Enablement team at 84.51° is seeking a Director of Software Engineering for its Agentic Foundations team. This team is responsible for designing, developing, and maintaining the agentic backbone of the Kroger enterprise, including platforms, patterns, and tools to support the best practice development of AI agents.
The Director of Engineering requires a unique mix of software engineering and AI skills necessary to lead the technical design of platforms, patterns, and tools to support the enterprise agentic ecosystem. This role has a focus on providing the technical leadership needed for engineering and data science development teams implementing solutions like agent/MCP/scorer/prompt registries, agent-related tools to aid in the development and monitoring of best practice agents and tools, and managing low-code and no-code agent platforms that integrate with agentic support.
RESPONSIBILITIES:
- Partner with the Director of Product Management for Agentic Foundations to jointly lead the space for the Kroger enterprise
- Lead and manage a team of engineers, guiding them in the design and development of their product/platform areas and in the management of their own reports
- Lead and manage hiring efforts for engineers on the Agentic Foundations team, including finding interview panelists, writing interview guides and questions, and assisting with coding screening questions
- Own and manage offshore reliability engineering teams
- Provide in-depth technical leadership in the scoping and implementation of enterprise-grade solutions to support agents across the Kroger enterprise
- Provide operational leadership across agentic platforms, ensuring enterprise-grade reliability, observability, and incident management
- Maintain an up-to-date expertise on agentic workflows, frameworks, platforms, and best practices to identify and inform new capabilities for implementation
- Foster a collaborative and innovative team environment, encouraging professional growth and development among team members
- Reduce the development time of the team by leveraging agentic SDLC tooling provided by the enterprise
- Lead the abstraction of tooling and services to user-friendly interfaces like APIs, Python packages, or UIs
- Understand business requirements and trade-off scale, risk, and accuracy to maximize value and translate research into consumable products or services
- Guide the development teams to follow software development standards, including version control, documentation, testing, and support
- Make time-sensitive decisions and solve urgent problems without escalation
QUALIFICATIONS, SKILLS, AND EXPERIENCE:
- 7+ years professional experience with cloud-based software architecture focused on scalability, performance, and reliability
- 7+ years professional experience with end-to-end SDLC leveraging CI/CD and AIOps/MLOps, including experience with agentic SDLC tooling
- 7+ years professional experience with large-scale AI/ML systems, including 2+ years with GenAI and deep learning methods
- Professional experience with production-grade agentic systems, including concepts like design and development, evals, deployment, and monitoring
- Professional experience with AI/ML frameworks and tooling (PyTorch, OpenAI SDK, LangChain, autogen)
- Professional experience with AIOps/MLOps tooling and concepts (MLflow, Model Registry, Model Monitoring)
- Professional experience with scaling and deploying AI/ML systems using tooling in Microsoft Azure and Google Cloud, including CI/CD, containerization, orchestration, and API development (in particular FastAPI)
- Professional experience with Kubernetes (AKS) and Helm
- Professional experience with Python
- Professional experience with infrastructure-as-code using Terraform
- Professional experience leading technical teams and consulting with customers, including managing senior engineers, communicating complex technical topics, and driving outcomes in ambiguous environments
- Skilled in partnering with product management peers to jointly define product and team direction and priorities
- Education: Bachelor’s degree or higher in Software Engineering, Computer Science, Machine Learning, or a related field
#LI-SSS
#LI-Remote
Pay Transparency and Benefits
- The stated salary range represents the entire span applicable across all geographic markets from lowest to highest. Actual salary offers will be determined by multiple factors including but not limited to geographic location, relevant experience, knowledge, skills, other job-related qualifications, and alignment with market data and cost of labor. In addition to salary, this position is also eligible for variable compensation.
- Below is a list of some of the benefits we offer our associates:
- Health: Medical: with competitive plan designs and support for self-care, wellness and mental health. Dental: with in-network and out-of-network benefit. Vision: with in-network and out-of-network benefit.
- Wealth: 401(k) with Roth option and matching contribution. Health Savings Account with matching contribution (requires participation in qualifying medical plan). AD&D and supplemental insurance options to help ensure additional protection for you.
- Happiness: Paid time off with flexibility to meet your life needs, including 5 weeks of vacation time, 7 health and wellness days, 3 floating holidays, as well as 6 company-paid holidays per year. Paid leave for maternity, paternity and family care instances.
Ready to apply?
Apply to 84.51°
84.51° Overview:
84.51° is a retail data science, insights and media company. We help The Kroger Co., consumer packaged goods companies, agencies, publishers and affiliates create more personalized and valuable experiences for shoppers across the path to purchase.
Powered by cutting-edge science, we utilize first-party retail data from more than 62 million U.S. households sourced through the Kroger Plus loyalty card program to fuel a more customer-centric journey using 84.51° Insights, 84.51° Loyalty Marketing and our retail media advertising solution, Kroger Precision Marketing.
84.51° follows a 5‑day in‑office work schedule to support collaboration, alignment, and team connection.
Join us at 84.51°!
__________________________________________________________
Lead Software Engineer – Agentic Foundations (P4475, P4477)
LOCATION: Cincinnati / Chicago
SUMMARY:
The AI Enablement team at 84.51° is seeking a Lead Software Engineer for its Agentic Foundations team. This team is responsible for designing, developing, and maintaining the agentic backbone of the Kroger enterprise, including platforms, patterns, and tools to support the best practice development of AI agents.
The Lead Software Engineer will provide hands-on technical leadership across architecture, implementation, and operations of core agentic capabilities, including agent/MCP/scorer/prompt registries, evaluation and monitoring tooling, and low-code/no-code agent platforms that abstract complexity for developers and business users. You will partner closely with product management, data science, and engineering peers and leaders to deliver enterprise-grade capabilities that accelerate time-to-value, improve quality and reliability, and promote compliant, best-practice use of agentic systems.
RESPONSIBILITIES:
- Lead the design, development, and operation of core agentic platforms, services, and tooling used across the Kroger enterprise
- Own technical outcomes for a more specific product area, such as registries (agent/MCP/scorer/prompt), evaluation frameworks, observability/monitoring, SDKs/APIs/UIs, and low-code/no-code agent platforms
- Provide in-depth technical leadership to scope and implement scalable, secure, and reliable solutions;
- Uphold standards for architecture, code quality, testing, and documentation
- Partner with the Agentic Foundations leadership, as well as engineering and data science leads, to plan quarters/cycles/sprints and ensure efficient, predictable delivery
- Work with offshore reliability engineering teams to ensure SLAs are upheld
- Occasional participation in level 2 on-call support for production systems
- Abstract complex capabilities into developer-friendly interfaces (APIs, Python packages, CLIs, and UIs) to reduce friction and accelerate adoption
- Drive operational excellence across platforms, including incident management, on-call support, capacity planning, and cost optimization
- Mentor and guide engineers through code reviews, architecture discussions, and pairing; contribute to team growth, onboarding, and enablement
QUALIFICATIONS, SKILLS, AND EXPERIENCE:
- Professional experience with cloud-based software architecture focused on scalability, performance, and reliability
- Professional experience with end-to-end SDLC leveraging CI/CD and AIOps/MLOps, including experience with agentic SDLC tooling
- Professional experience with large-scale AI/ML systems, including 1+ years with GenAI and deep learning methods
- Professional experience with AI/ML frameworks and tooling (PyTorch, OpenAI SDK, LangChain, autogen)
- Professional experience with AIOps/MLOps tooling and concepts (MLflow, Model Registry, Model Monitoring)
- Professional experience with scaling and deploying AI/ML systems using tooling in Microsoft Azure and Google Cloud, including CI/CD, containerization, orchestration, and API development (in particular FastAPI)
- Professional experience with Kubernetes (AKS) and Helm
- Professional experience with Python
- Professional experience in ambiguous environments
- Skilled in problem solving, analytic thinking, and creativity
- Skilled in planning, organization, and verbal/written business communication
- Skilled in maintaining a positive leader persona in ambiguous and changing environments
- Demonstrated excellence as a teammate and leader
- 4-6 years relevant experience
- Education: Bachelor’s degree or higher in Software Engineering, Computer Science, Machine Learning, or a related field
#LI-SSS
#LI-Remote
Pay Transparency and Benefits
- The stated salary range represents the entire span applicable across all geographic markets from lowest to highest. Actual salary offers will be determined by multiple factors including but not limited to geographic location, relevant experience, knowledge, skills, other job-related qualifications, and alignment with market data and cost of labor. In addition to salary, this position is also eligible for variable compensation.
- Below is a list of some of the benefits we offer our associates:
- Health: Medical: with competitive plan designs and support for self-care, wellness and mental health. Dental: with in-network and out-of-network benefit. Vision: with in-network and out-of-network benefit.
- Wealth: 401(k) with Roth option and matching contribution. Health Savings Account with matching contribution (requires participation in qualifying medical plan). AD&D and supplemental insurance options to help ensure additional protection for you.
- Happiness: Paid time off with flexibility to meet your life needs, including 5 weeks of vacation time, 7 health and wellness days, 3 floating holidays, as well as 6 company-paid holidays per year. Paid leave for maternity, paternity and family care instances.
Ready to apply?
Apply to 84.51°