Top Tech Jobs & Startup Jobs in Denver & Boulder, CO

Lead and architect scalable web systems, mentor frontend and backend developers, define coding standards and roadmaps, drive implementations using React/Next/Node/NestJS, produce technical documentation, conduct code reviews, and collaborate with product and DevOps to deliver secure, maintainable solutions.

Design modern, user-centric landing pages, dashboards, and web interfaces using Figma. Create wireframes, mockups, and prototypes, conduct UX research, implement user feedback, and ensure visual consistency. Collaborate with marketing and front-end developers to align designs with branding and functionality, prioritize multiple projects, and optimize usability and accessibility across Ultahost platforms.

Oversee website content creation, optimization, and publishing. Lead a small team of writers and translators, maintain brand voice and CMS structure, run SEO and UX improvements, coordinate with product/design/dev teams, conduct content audits, develop content calendars, and monitor analytics to improve traffic and conversions.

Serve as the primary customer success contact for hotel clients, helping them adopt, optimize, and expand use of the company’s SaaS platform. Responsibilities include strategic business reviews, data-driven coaching, renewal and expansion support, issue resolution, onboarding transitions, product feedback, and customer journey improvements. The role is remote, requires West Coast residence, executive-level communication, and travel up to 35% for client meetings and industry events.

Provide timely, professional customer support via live chat, resolve inquiries, recommend products using product knowledge, collaborate cross-functionally, and continuously improve service skills.

Design and productionize ML models and agentic systems for intraday financial alpha generation. Build data pipelines, experiment frameworks, and portfolio optimization methods. Collaborate with quants and engineers to move models from research to live trading environments.

Leads end-to-end QA for web and mobile applications, including test planning, execution, reporting, performance testing, security testing, defect management, and release quality assurance. Implements test automation and CI/CD integration while collaborating with product managers, developers, and international teams. The role also drives QA initiatives, investigates vulnerabilities and bottlenecks, and improves quality processes in a fast-paced startup environment.

Owns full-cycle recruiting for sales roles, including intake, sourcing, screening, interviewing, offers, and hiring. Partners with sales and HR leaders to define hiring needs, build talent pipelines, manage multiple requisitions, track recruiting metrics, and improve recruiting processes. The role is remote and focuses initially on hiring across Central and Eastern time zones.

Drive new client acquisition in zero-base accounts, consistently generate and qualify pipeline, close high-value B2B enterprise SaaS deals, prospect and cold-call, run demos, collaborate cross-functionally, and act as a trusted advisor to grow and retain accounts.

Design, develop, and execute manual and automated tests for front-end, back-end, APIs, and large-scale services. Build and maintain automated test suites and frameworks (Java, JUnit, Selenium, TestNG), analyze logs, report results, and collaborate with stakeholders; ensure test coverage across devices and drive test strategy and sign-off.

Design and build scalable native iOS and Android features using Swift and Kotlin. Integrate with backend services, optimize performance, write unit tests, maintain code quality, and lead end-to-end delivery of mobile product modules.

Design and deliver user-centric web and mobile experiences: wireframes, flows, high-fidelity mockups, and interactive prototypes. Build and maintain design systems, run UX research and usability testing, optimize for accessibility, responsiveness, and performance, and collaborate with product, engineering, and marketing on fintech investor flows.

Open application inviting AI engineers, full-stack developers, data scientists, finance experts and others to apply. Candidates should submit a resume/LinkedIn, links to work (GitHub, Kaggle, portfolio) and a brief note explaining motivation, value they bring, and desired roles or projects.

Fine-tune and align LLMs for specialized financial tasks; build agentic solutions with LangChain/Autogen; engineer ML pipelines for large financial datasets; deploy, monitor and scale production models; track AI research and integrate emerging tooling.

Support CEO and leadership on market intelligence, financial modelling, go-to-market strategy, partnerships and PMO. Run competitor analysis, size segments, build investor-ready business plans, craft value propositions and support partner negotiations while tracking cross-functional OKRs and dashboards.

SynX Therapeutics, a biotech start-up, invites speculative applications for future roles related to drug discovery and engineered biology.