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

Build responsive, accessible web applications using JavaScript/TypeScript and a modern framework. Translate designs into reusable UI components, integrate with APIs, improve performance and cross-browser compatibility, write tests, participate in code reviews, diagnose production issues, and collaborate with design, QA, backend and product teams.

Lead full-cycle recruitment for tech and non-tech roles: own sourcing, interviewing, offer negotiation, ATS data management, hiring-manager partnerships, candidate experience, and process optimization across a fast-growing AI-driven company.

Greet customers, qualify needs, direct them to sales staff, manage front-desk and phone inquiries, schedule test drives, collect and log lead information in the CRM, assist with initial paperwork, maintain showroom presentation, perform light administrative tasks, and complete required company and manufacturer trainings.

Manage and execute SEO-driven content strategy for a US-focused website: keyword research, content briefs, on-page optimization, CMS editing, internal linking, monetization, quality control, and coordinate freelancers and stakeholders to improve traffic and conversions.

Lead one or more affiliate websites with full product and commercial responsibility. Execute US-focused SEO and content strategies, manage in-house staff and freelancers, optimize UX/CRO, monitor performance, run competitor analysis, manage budgets/timelines, and identify new growth and monetization opportunities.

Handle inbound service calls to upsell extended warranty insurance products, assess customer needs, ensure FCA regulatory compliance, meet sales targets, and deliver excellent customer service while working fully remote with occasional on-site induction in Warrington.

Provide hands-on regulatory and commercial legal advice for crypto, web3, fintech and payments products. Advise product teams on design, licensing, compliance (AML/KYC, sanctions), marketing/promotions, and cross-jurisdiction regulatory risks. Lead licensing/submission processes, coordinate local counsel, draft and negotiate commercial contracts, respond to regulators and stakeholders, and build scalable playbooks to enable compliant product launches.

Develop and maintain enterprise-class Java backend software for centralized management of hyperconverged data center products. Collaborate with cross-functional teams in an Agile/Scrum environment, integrate core product components, work with VMware and cloud automation tooling, and drive software design, quality, and supportability.

Design, develop, test and maintain enterprise Java/J2EE web applications using Spring, Hibernate and related frameworks. Work across SDLC in Agile/Waterfall, implement front-end components (Angular/Bootstrap), integrate messaging (JMS/MQ) and databases (Oracle/SQL Server/MySQL), use build and CI tools, and participate in estimation, code reviews and deployment.

Senior Java Developer responsible for designing, implementing, and testing Java/J2EE web applications using Spring, Hibernate, JMS/MQ, and SQL. Work includes front-end integration (Angular/Bootstrap), application server deployment, database development, unit and integration testing, and participating in Agile ceremonies and design sessions.

Lead mobile QA for iOS, Android, and responsive web: design and execute manual and automated tests, run exploratory/regression/smoke testing, validate performance and cross-device compatibility, perform API/integration testing, document defects, improve QA processes, mentor junior QAs, and communicate release readiness.

Own end-to-end quality validation for new features and releases on a genomics platform. Design, build, and maintain scalable automated regression suites (Playwright/Cypress/Selenium), run API/integration tests (Postman/Swagger), integrate tests into CI/CD, lead exploratory testing and release readiness, track defects to resolution, improve QA processes, and mentor junior QA engineers while communicating quality risks across teams.

Build and maintain high-performance TypeScript backend services and event-driven infrastructure. Design scalable APIs, integrate PostgreSQL/MySQL, AWS SQS, and Centrifugo, ensure reliability, security, and observability, optimize production systems, modernize legacy code, and own end-to-end feature delivery with strong testing, debugging, and performance tuning.

Support mission planning and real-time spacecraft operations for lunar missions. Perform trajectory and orbit analyses, Monte Carlo simulations, and orbit determination. Develop and maintain production-quality Python flight-dynamics software and automation tools, create operations procedures and flight rules, and collaborate with international teams and ground/flight subsystems to ensure mission readiness and execution.

Design, build, and operate governed multi-account AWS platform capabilities: account vending, federated identity, SCP guardrails, reusable IaC modules (Terraform/CloudFormation/CDK), Git-based CI/CD promotion pipelines, centralized logging, cost controls, and automated lifecycle management for accounts and environments.