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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full-Stack Software Engineer - **Company:** Decisiv, Inc. - **Location:** United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Query Performance, Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Business Analytics Applications, Data Analysis, Automated Storage and Retrieval Systems, Software as a Service, Cloud Computing, Code Review, Continuous Integration, Information Engineering, Relational Databases, Software Debugging, Github, JSON, Python (Programming Language), PostgreSQL, Scrum Methodology, Ruby on Rails, Software Engineering, Web Applications, Openapi, Capybara, ReactJS, Rspec, Large Language Models, Multi-Agent Systems, Indexer, Vue.js, AngularJS, Information Technology, Atlassian Tools, Free and Open-Source Software, Graphql, Front End Software Development, Industrial Software, Data Pipelines, Docker - **Published:** October 15, 2026 - **Apply:** https://www.builtincolorado.com/job/senior-full-stack-software-engineer-ruby-rails-1148/11673569?handler=ApplyRedirect ## About the Role BS/BA or equivalent experience; 6+ years building production web applications, including 3+ years with Ruby on Rails in production. Technical foundation (required) * Deep, current experience with Ruby on Rails in production environments. * Strong proficiency with relational databases, PostgreSQL preferred, including schema design, indexing, and query performance. * Experience integrating modern front-end frameworks (React, Vue, Angular, or similar) with Rails back ends. * Strong API design and implementation skills (REST, JSON:API, OpenAPI; GraphQL a plus). * Working knowledge of AWS, Docker, GitHub, and CI/CD pipelines. * Practical experience with testing (RSpec, Capybara), performance tooling, observability, and production debugging. How you work (required) * Modern tooling fluency. You have already evolved your workflow to take advantage of the latest generation of developer tooling, and you have well-formed opinions about where it earns its keep and where it does not. * Systems thinking. You instinctively reason about end-to-end behavior, integration points, failure modes, and the second-order effects of design choices. * High agency and ownership. You take loosely-defined problems and drive them to shipped, operating outcomes, and you stay accountable when things break. * Quality judgment under leverage. You can move quickly without lowering the bar. You review your own work and the work of your tools with the same rigor. * Clear written communication. You can explain technical decisions and tradeoffs in writing, precisely enough that teammates, stakeholders, and your toolchain can act on them. Bonus points for * Hands-on experience building on top of large language models: evaluations, agent orchestration, or retrieval systems in production. * Experience with Python and Java. * Knowledge of data engineering, ELT pipelines, or analytics platforms. * Background in API analytics, anomaly detection, or trend-based error analysis. * Open-source contributions or a strong public engineering portfolio. * Domain experience in commercial vehicle, fleet, logistics, or industrial software. Required * Travel - 5% * Due to travel requirements, you must reside in the United States ## Description * Own outcomes end-to-end. Take features from problem definition through design, implementation, rollout, and operation across database, API, and front-end layers. * Build with leverage. Use the modern toolchain, including the latest generation of coding tools, to materially compound your output. Frame problems so they can be attacked efficiently; supervise, review, and steer the work end-to-end. * Reason about systems, not just code. Understand data flow, failure modes, performance characteristics, and operational behavior of the systems you touch, including the parts you did not personally write. * Drive platform reliability and developer productivity. Improve the runtime systems and the tooling, observability, and feedback loops that the rest of engineering depends on. * Modernize and extend. Evolve legacy services for stability, performance, and scalability while delivering new capability into the broader ecosystem. * Design durable APIs and integrations. Shape REST/JSON:API/OpenAPI contracts and front-end integrations that other teams and partners can build on for years. * Collaborate cross-functionally. Work closely with product, design, and other engineers to translate ambiguity into shipped product. Participate in sprint planning, code reviews, and architecture discussions. * Write things down. Produce clear specs, ADRs, PR descriptions, and runbooks. Precise written thought is a force multiplier that scales decisions across the team and across the toolchain. * Raise the bar. Mentor other engineers, model strong high-leverage workflows, and contribute to how we build software here. * Share the pager. Participate in the on-call rotation for systems your team owns., Manage healthcare revenue cycle activities including billing, collections, claims, accounts receivable, denials, payer follow-up, reconciliations, and reimbursement analysis. Support outsourced client engagements, improve operational workflows, communicate with clients, and provide guidance on revenue cycle best practices. Use EHR systems, payer portals, clearinghouses, and Microsoft tools while coordinating domestic and offshore teams and managing multiple client engagements. Top Skills: Billing SoftwareCernerClearinghousesEclinicalworksEhr SystemsEpicMeditechMicrosoft ToolsPayer Portals Atlassian Solution Sales Center of Excellence, Teamwork Collection 50 Minutes Ago In-Office or Remote USA Entry level Entry level Cloud * Information Technology * Productivity * Security * Software * App development * Automation Lead global mid-market sales performance and revenue growth for Atlassian's Teamwork Collection. Develop operating plans, strategic sales plays, inspection rhythms, and scalable go-to-market execution. Partner across sales, SDR, channel, demand generation, product, and marketing teams to increase pipeline, accelerate deal velocity, and expand market presence. Enable account executives and sales managers through field readiness, onboarding, and clear positioning of collaboration and AI solutions. Top Skills: AIEnterprise Saas Atlassian Principal Analyst, Sales Strategy & Operations 50 Minutes Ago In-Office or Remote Expert/Leader Expert/Leader Cloud * Information Technology * Productivity * Security * Software * App development * Automation Partners with Sales leadership to analyze business performance, identify risks and opportunities, and improve go-to-market execution. Leads forecasting, pipeline and business reviews, strategic initiatives, annual planning, and operational improvements. Collaborates with Finance, Analytics, Compensation, Enablement, Systems, and Operations teams on capacity, territories, quotas, coverage, and investment decisions. Builds scalable, automated processes and drives cross-functional alignment and accountability. What you need to know about the Colorado Tech Scene With a business-friendly climate and research universities like CU Boulder and Colorado State, Colorado has made a name for itself as a startup ecosystem. The state boasts a skilled workforce and high quality of life thanks to its affordable housing, vibrant cultural scene and unparalleled opportunities for outdoor recreation. Colorado is also home to the National Renewable Energy Laboratory, helping cement its status as a hub for renewable energy innovation. Key Facts About Colorado Tech * Number of Tech Workers: 260,000; 8.5% of overall workforce (2024 CompTIA survey) * Major Tech Employers: Lockheed Martin, Century Link, Comcast, BAE Systems, Level 3 * Key Industries: Software, artificial intelligence, aerospace, e-commerce, fintech, healthtech * Funding Landscape: $4.9 billion in VC funding in 2024 (Pitchbook) * Notable Investors: Access Venture Partners, Ridgeline Ventures, Techstars, Blackhorn Ventures * Research Centers and Universities: Colorado School of Mines, University of Colorado Boulder, University of Denver, Colorado State University, Mesa Laboratory, Space Science Institute, National Center for Atmospheric Research, National Renewable Energy Laboratory, Gottlieb Institute