Planera

Design and develop AI agent backend features, implement evaluation and observability for AI assistant. | 4+ years engineering experience with production LLM features, Python, prompt engineering, and agentic systems. | About the Role Join Planera to build Manny, our AI scheduling assistant, and shape how construction schedulers work with AI on a modern Critical Path Method platform. You will own agent features end to end: designing and evolving the LangGraph/LangChain agent, engineering prompts and tools, integrating LLMs across providers, and holding response quality to a high bar with a real evaluation and observability stack. This is a hands-on applied AI role with a strong software engineering foundation and a focus on reliability, behavior quality, and user impact. You will work directly with the CTO and the lead AI engineer. Key Responsibilities Design, build, and own Manny features end to end across the agent backend, tools, and UI Improve agent behavior, reliability, and answer quality through prompt engineering, tool design, and changes to the agent control flow Evolve the agent architecture: ReAct loop, routing and controller logic, multi-node graphs, tool selection, and streaming responses Integrate and tune LLMs across providers (Anthropic, OpenAI, Google), balancing quality, latency, and cost, including prompt caching and model selection Design and extend Manny's tool surface through the MCP server that connects the agent to Planera's scheduling services Build and own the evaluation loop: golden datasets, automated evaluators, snapshot-based replay, and offline and online quality metrics Implement observability for agent runs with tracing, metrics, and structured logging, and use it to debug and improve behavior in production Ensure safe, sandboxed execution of model-generated code and safe handling of tool side effects and mutations Collaborate with product, backend, and frontend to deliver AI features end to end Requirements 4+ years of software engineering experience, including recent hands-on work building production LLM features. Strong proficiency in Python building production services Hands-on experience building agentic systems with LLMs: tool and function calling, ReAct or similar loops, and orchestration frameworks such as LangChain/LangGraph Practical prompt engineering skill: shaping model behavior reliably, debugging failures from traces, and managing large prompts and token cost Experience evaluating LLM systems: building datasets, writing evaluators, catching regressions, and using tracing and observability tooling Experience with the Model Context Protocol (MCP) or building tool and function-calling integrations for LLMs Solid understanding of API design (REST, websockets, SSE and streaming) and interservice communication Product mindset with a focus on user impact and pragmatic tradeoffs Excellent remote communication skills Preferred Experience with MongoDB and Redis Cloud experience (AWS or GCP), containers, and CI/CD Go experience, as most of our backend systems are written in Go, including the MCP tool server Practical experience with retrieval and augmentation (RAG), embeddings, and vector stores Familiarity with LangSmith or comparable LLM evaluation and tracing platforms Frontend or React familiarity for agent UI work Domain knowledge in construction tech, project management, or scheduling Tech Stack Python (Flask), Go, LangGraph/LangChain, LangSmith, MongoDB, Redis, S3, REST/websockets/SSE, Docker, AWS/GCP, Terraform, GitLab CI/CD Why Join Us Impact: Be at the forefront of transforming a $12.1 trillion industry. Build the AI that changes how the world plans and schedules construction. Culture: Join a smart, spirited team dedicated to innovation and excellence. Growth: Opportunity for professional growth and career advancement in a fast-paced start-up environment. Benefits Competitive salary, stock options, benefits package, and a dynamic work environment.

Lead and manage QA teams using Agile methodologies to drive testing processes for cloud, mobile, and web platforms while contributing independently to the codebase. | 5+ years managing QA teams with strong knowledge of QA tools, manual and automated testing, excellent communication, and experience managing remote or hybrid teams. | About Us: Planera is a fast-growing software startup revolutionizing construction planning and scheduling. We are disrupting an industry that has seen little innovation in decades, and the opportunity for change – and upside – is big. Our culture is dynamic, smart, and spirited, and we are committed to solving critical problems for general contractors and project owners. Join us and help to grow a company that will change how the world is built. Position Overview: We are seeking an experienced and driven Head of Quality Assurance to join our team. The ideal candidate will have a strong background in testing cloud, mobile and web development, and will work closely with the engineering team and product management teams to create and execute on the company’s roadmap. This role reports directly to the Head of Engineering. The candidate must have experience leading high-performance distributed teams and a strong aptitude for the Agile process. Key Responsibilities: • Agile Process: Able to work with software development projects using SCRUM techniques with 1-2 week Sprint cycles • Managing Hybrid Remote Teams : Managing and improving teams will be a prime focus Driving Test Processes: Familiarity with modern testing methodologies including mobile, web and cloud automation • Independent Contributor: Able to get started quickly on a young but existing codebase and infrastructure, and contribute to our platform without formal training or mentoring Qualifications: • 5+ years of experience managing QA teams • Strong knowledge of QA test tools and processes • Strong experience with manual and automated testing • Strong problem-solving skills and the ability to work under pressure. • Excellent communication and interpersonal skills. Preferred Skills: • A history of successfully managing remote teams Why Join Us: • Impact: Be at the forefront of transforming a $12.1 trillion industry. Make a meaningful impact on how the world builds. • Culture: Join a smart, spirited team dedicated to innovation and excellence. • Growth: Opportunity for professional growth and career advancement in a fast-paced start-up environment. • Benefits: Competitive salary, stock options, benefits package, and a dynamic work environment.