Top Tech Jobs & Startup Jobs in Milwaukee, WI

Develops and manages a portfolio of approximately 100 major donors, cultivating relationships, soliciting gifts of $25,000–$250,000, stewarding supporters, and growing fundraising revenue. Responsibilities include donor research, proposals, presentations, engagement strategies, CRM management, performance analysis, and frequent in-person and virtual donor interactions. The role requires 30%–50% overnight travel and supports Haggai International’s Christian mission.

Develops and manages a portfolio of 300–400 donors through cultivation, solicitation, stewardship, and personalized engagement. Identifies leadership and mid-level gift prospects, prepares proposals, secures financial commitments, and refers high-capacity donors to major gift officers. Collaborates on fundraising campaigns and events, analyzes performance metrics, and maintains accurate donor records in the CRM.

Design intuitive mobile and web interfaces: conduct product discovery and user research, create wireframes, flows, high-fidelity prototypes in Figma, run usability testing, collaborate with PMs and developers, and ensure design consistency and implementation.

Own end-to-end product features for a SaaS platform serving HR, therapists, and employees. Build, scale, and evolve frontend and backend components, lead architecture and standards, collaborate with design and product, and incorporate customer feedback and QA. Work in an early-stage startup environment with product-focused ownership.

Provide remote administrative support including calendar and email management, preparing reports and presentations, conducting research, compiling data, and performing general administrative tasks to ensure efficient office operations.

Own Minoan’s finance operations, including month-end close, GAAP reporting, reconciliations, cash flow, payments, sales tax, expense controls, investor reporting, and outsourced accounting relationships. Build scalable processes and automate finance workflows using tools such as QuickBooks, Sigma, and Snowflake. Partner cross-functionally across Sales, Operations, Marketing, Product, and Brand Partnerships, with increasing responsibility for FP&A and strategic planning as the company grows.

Lead strategy and execution for UNREEL and Auto All Stars social channels across Instagram, TikTok, Facebook and YouTube. Build editorial positioning, licensing workflows, creator partnerships, and an 80/20 content model. Manage a small team and daily operations via Asana, deliver weekly performance reports, adapt to platform algorithm changes, and support client campaigns and content monetization.

Build end-to-end features in a JS/TS stack, designing scalable backend services and responsive real-time frontends. Improve observability, performance, and reliability, collaborate with product/design, and own full-stack implementation from APIs and data models to UI.

Lead Rumi's content and community: set editorial strategy and calendar, produce high-quality written and social content, repurpose and distribute product updates and educator stories, build lightweight distribution and engagement systems, track performance, and collaborate with sales and founders to support launches and campaigns.

Lead district-level sales for K-12 EdTech: build pipeline from prospecting to close, cultivate relationships with superintendents and curriculum/IT leaders, run pilots and procurement, create repeatable district sales playbook, inform product roadmap, and represent the company at conferences and educator communities.

Build and scale customer-facing iOS marketplace experiences using Swift and SwiftUI. Implement feature-flagged functionality, write unit and UI tests, collaborate with Product, Design, Android, backend, QA, and senior iOS engineers, and take increasing ownership of reliability and operational health. Use AI tools for coding, refactoring, testing, debugging, documentation, and reducing repetitive work while critically validating generated outputs.

Build and maintain scalable, cloud-native APIs and high-value core system components using .NET and related technologies. Lead software architecture and testing discussions, enhance core offerings, collaborate cross-functionally, and ensure quality through code reviews, unit testing, functional testing, telemetry, and performance tuning. Mentor teammates and contribute to continuous technical and process improvement.

Build and scale customer-facing iOS applications for OPENLANE’s wholesale vehicle marketplace. Responsibilities include designing Swift and SwiftUI features, leading iOS architecture and UIKit modernization, improving testing and release practices, managing cross-cutting concerns such as authentication and analytics, using AI development tools, mentoring engineers, and collaborating with Product, Android, backend, platform, and QA teams.

Lead Recruiter sources, screens, and hires healthcare professionals using job boards, social media, and ATS. Partners with hiring managers, schedules interviews, negotiates offers, manages onboarding, maintains candidate records, and represents the company at recruitment events to expand the talent pipeline.

Lead local driver recruitment and onboarding by building a 500+ interested-driver list, support day-to-day local operations, and act as OMNI's regional point of contact.

Design, build, and optimize scalable backend services, APIs, and data pipelines. Integrate with third-party billing/commerce systems, maintain serverless/event-driven architectures on AWS, ensure security and performance, implement automated tests and CI/CD, mentor engineers, and drive architectural decisions.

Own and improve the reliability of Kintsugi’s AWS and managed Kubernetes infrastructure. Build automation, internal tools, observability, CI/CD pipelines, and infrastructure-as-code workflows while reducing operational toil. Lead incident response, reliability architecture, developer enablement, cost optimization, security, compliance, and disaster recovery efforts. Work agent-first and partner with Platform Engineering, Product, QA, and software teams to deliver scalable, secure systems.

Plan and execute events, webinars, and speaking opportunities to generate qualified leads; build and manage strategic partner relationships and joint-marketing programs; collaborate with Sales, Product Marketing, and Content to align messaging, track ROI, and expand partner ecosystem in target markets (e-commerce, SaaS, multi-entity businesses).