CloudOps Lead Engineer (W2 Only) Raas Info Solutions Pvt LtdCloudOps Lead Engineer (W2 Only)Plano, TXContractorThe ideal candidate has a strong “want-to-learn” mindset, is eager to deeply understand our ecosystem and architecture, and demonstrates ownership, leadership, and the ability to drive initiatives independently. Job Description : We are looking for a motivated and hands-on Cloud Ops Engineer to join our team and play a critical role in deploying, operating, and maintaining our cloud-based products.
Fabrication Quality Engineer JobotFabrication Quality EngineerCarrollton, TX$85,000–$100,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. We are a specialized manufacturer delivering engineered solutions that protect people, industrial operations, and the environment — playing an active role in the energy transition and environmental stewardship on a global scale.
NewSr Commissioning Engineer (Data Centers) – Remote JobotSr Commissioning Engineer (Data Centers) – RemoteDallas, TXRemote$120,000–$165,000 / yearSuccessful candidates will have experience in Electrical Systems & Equipment with a focus in Data Centers and Mission Critical Facilities; experience and an understanding of Building MEP Systems Design, Construction, and Commissioning of Critical Systems ranging in size, rating, and complexity; Commissioning, Testing and Troubleshooting of Electrical Systems and related controls. Knowledgeable with common mechanical, and controls-related building equipment, including: Engine generators / Uninterruptible power supplies & battery systems / Medium and low-voltage electrical switchgear/ PLC controls and sequences of operations / Automatic transfer switches / Static transfer switches / Power distribution units / Busways.
NewIllumio Network Security Engineer Vaco LLCIllumio Network Security EngineerAddison, TXRemote$100–$150Determining compensation for this role (and others) at Vaco by Highspring depends upon a wide array of factors including but not limited to: the individual’s skill sets, experience and training; licensure and certification requirements; office location and other geographic considerations; other business and organizational needs. Determining compensation for this role (and others) at Vaco/Highspring depends upon a wide array of factors including but not limited to the individual’s skill sets, experience and training, licensure and certifications, office location and other geographic considerations, as well as other business and organizational needs.
NewSenior Principal Cybersecurity Engineer (Incident Response) Vaco LLCSenior Principal Cybersecurity Engineer (Incident Response)Arlington, TX$190,000–$230,000The Senior Principal Cybersecurity Engineer will join the Incident Response Team as a technical leader and SME, influencing the achievement of strategic alignment by partnering with business unit leaders to identify high-impact initiatives that advance business strategy. Determining compensation for this role (and others) at Vaco by Highspring depends upon a wide array of factors including but not limited to: the individual’s skill sets, experience and training; licensure and certification requirements; office location and other geographic considerations; other business and organizational needs.
NewPrincipal Cybersecurity Engineer (Incident Response) Vaco LLCPrincipal Cybersecurity Engineer (Incident Response)Arlington, TX$190,000–$215,000Networking / Protocols – TCP/IP Networking / OSI Model / IP Subnetting / Secure Network Architecture / Network Operations / Application Layer Protocols (HTTP / SSH / SSL/TLS / DNS) / Common Network Protocols / Design Patterns (FTP / SFTP / SSH / RDP / CIFS/SMB / NFS). Determining compensation for this role (and others) at Vaco by Highspring depends upon a wide array of factors including but not limited to: the individual’s skill sets, experience and training; licensure and certification requirements; office location and other geographic considerations; other business and organizational needs.
NewSenior .NET Software Engineer / SRE Vaco LLCSenior .NET Software Engineer / SREArlington, TX$60–$95This is not a traditional .NET Developer (no owning user-facing APIs or business logic for financial services), but rather applying .NET skills to SRE tasks, including building custom tools for automation, reliability, and release engineering, creating GITHub Copilot context files to embed SRE practices (security / performance checks) early in development cycles, debugging / refactoring code in production environments, performing root-cause analysis, and iterating post-deployment. DevOps Development – Building / Integrating CI/CD Pipelines (Azure DevOps / Jenkins) for Automated Workflows | Docker Containerization | Kubernetes Orchestration / Deployment (AKS) | IaC / Terraform (ARM / YAML / Terraform / PowerShell / BASH / Python) for Provisioning Cloud Resources | Azure Services (AKS / Azure DevOps / Serverless / Event-Driven Architectures [Service Bus / Event Grid]).
NewLead .NET Software Engineer / SRE Vaco LLCLead .NET Software Engineer / SREArlington, TX$60–$95This is not a traditional .NET Developer (no owning user-facing APIs or business logic for financial services), but rather applying .NET skills to SRE tasks, including building custom tools for automation, reliability, and release engineering, creating GITHub Copilot context files to embed SRE practices (security / performance checks) early in development cycles, debugging / refactoring code in production environments, performing root-cause analysis, and iterating post-deployment. JOB REQUIREMETSLead .NET Developer – Technical Team Lead / Leading Teams of 5+ | Writing Clean / Maintainable Enterprise-Grade Code | Designing / Extending Classes / Patterns | OOD / Design Patterns (Singleton / Factory, etc.) | Libraries / Frameworks (ASP.NET Core / REST API / MicroServices) | Development within Cloud-Native / Containerized (Docker / Kubernetes) / Azure-Integrated Setups.
Operations Supervisor - Transportation (Supply Chain/Logistics) PenskeOperations Supervisor - Transportation (Supply Chain/Logistics)Carrollton, TXFull timeProvide operational leadership to individual contributors and hourly workforce to ensure the execution of daily tasks and activities including driver deliveries, loading/unloading of trailers, and customer service operations in a manner consistent with company services and cost objectives. Demonstrated leadership qualities with strong interpersonal skills and have the ability to connect, build rapport and maintain solid relationships with associates, Company leadership, internal and external customers.
NewMLOps Platform Engineer (SageMaker) - Contract TalentBurst, Inc.MLOps Platform Engineer (SageMaker) - ContractPlano, TXWhat you ll be doing Set up SageMaker Unified Studio platform domain configuration, project provisioning, persona-based roles, and multi-environment (Dev, Prod-UAT, Prod) promotion workflows. You will migrate the organization from a fragmented ML toolchain to a unified, governed platform on AWS Landing Zone 2, covering the full ML lifecycle from data discovery through model deployment and monitoring.
NewSystems Engineer – Enterprise Storage & Kubernetes ECLAROSystems Engineer – Enterprise Storage & KubernetesRichardson, TX$60–$62 / hourResponsibilities:Storage Architecture & Administration:Hardware Lifecycle Management: Configure, provision, optimize, and maintain NetApp All-Flash FAS (AFF) systems, including legacy and modern architectures: AFF A300, A800, A900, next-generation A30, A90, and high-end A9K storage arrays. Cloud-Native Storage Integration:Dynamic Orchestration: Serve as a subject matter expert for NetApp Trident, managing CSI (Container Storage Interface) driver installation, upgrades, and complex storage class definitions.
NewSecurity Engineer (Tenable / Purview) Vaco LLCSecurity Engineer (Tenable / Purview)Dallas, TXRemote$75–$100The Security Engineer (Tenable / Purview) must possess strong expertise in Tenable Vulnerability Management to address urgent patching, tooling cleanup, and remediation needs by the end of March, including hands-on work to stabilize and operationalize the vulnerability management process for repeatability and efficiency. The Security Engineer (Tenable / Purview) will also provide more broad information security engineering support across multiple 2025 roadmap projects involving security tooling, including MS Purview initiatives encountering issues that require attention and 2+ Trellix SIEM-related initiatives.
Sr. Integration, Data & AI Engineer (Full Time) Dexter TechnologiesSr. Integration, Data & AI Engineer (Full Time)DFW Airport, TXFull timeIntegration, Data & AI Engineer is the internal technical owner of company's unified operational platform as it scales across an active portfolio of acquired commercial roofing companies. You are the person who knows how every integration works, catches problems before partners do, and progressively reduces our dependency on outside help.
NewData Engineer Sr - Contractor System OneData Engineer Sr - ContractorFarmers Branch, TXAdvanced SQL and performance tuning experience • MySQL • Oracle • Experience with operational best practices: backup/restore validation, patch planning, monitoring/alerting, incident response, and runbooks. MUST HAVE SKILLS: • Strong hands-on experience designing and operating high-volume, enterprise OLTP databases supporting mission-critical transactions.
NewLead DevSecOps Engineer System OneLead DevSecOps EngineerDallas, TX$170–$170 / hourLead the integration of security into CI/CD pipelines, architect secure cloud environments, and guide teams in adopting modern DevSecOps practices to ensure a secure-by-design engineering approach across cloud and application platforms. Manage the security and reliability of Jenkins pipelines used for vulnerability remediation automation, including implementing and maintaining security gates and reusable pipeline components.
NewTech Lead Software Engineer Southwest AirlinesTech Lead Software EngineerDallas, TX$160,550–$178,260 / yearActing as a bridge between Development Teams, business stakeholders, and Leadership, you’ll shape technical direction, mentor Engineers, and bring clarity to complex Customer‑focused initiatives. Create, maintain, review and approve application designs in collaboration with Solution Architects and shared services Teams, ensuring alignment to the appropriate solution architectures and taking tradeoffs into account.
Infrastructure Engineer - Advanced Pinnacle Technical ResourcesInfrastructure Engineer - AdvancedPlano,, Texas$65–$75 / hourContractorThe successful candidate will be responsible for the design, deployment, configuration, and support of IBM Geographically Dispersed Parallel Sysplex (GDPS) solutions, ensuring high availability, disaster recovery, and business continuity for our critical mainframe environments. The specific compensation for this position will be determined by several factors, including the scope, complexity, and location of the role, as well as the cost of labor in the market; the skills, education, training, credentials, and experience of the candidate; and other conditions of employment.
NewApplied Early Career Program - Field Service Engineer APPLIED MATERIALSApplied Early Career Program - Field Service EngineerDallas, TX$27–$37.40 / hourp/>Learn more about the Field Service Engineering Roles at Applied Materials. In addition, Applied endeavors to make our careers site accessible to all users.
NewQuality Assurance Engineer PlanIT GroupQuality Assurance EngineerGrand Prairie, TXAs the Quality Engineer Staff you will be responsible for overseeing quality processes, coordinating cross‐functional teams, and supporting hybrid on‐site/remote operations. -AS9102 first article inspections, hardware source inspections, and performing audit/surveillance on supplier production processes/procedures experience.
Commercial Construction Project Engineer - 2026 HITT ContractingCommercial Construction Project Engineer - 2026Dallas, TXMaster required job-specific and technical skills in order to promote to an assistant superintendent or assistant project manager following the 12-month training program including, but not limited to, the ability to: Set up and maintain jobsite office and all jobsite records, including project directory, construction documents, subcontractor directory, daily reports, submittal logs, RFI logs, subcontractor correspondence, etc. Ability to learn sector- and project-specific software systems, including but not limited to: Microsoft Office 365 (Project, Excel, Word, Outlook, PowerPoint, etc.), ProCore, Adobe Suite, BlueBeam, and JD Edwards software suite .
Cloud Database Engineer Kforce Inc.Cloud Database EngineerWestlake, TX$65–$75Implement and manage database replication and migration solutions using AWS DMS and Oracle GoldenGate, enabling reliable data movement, synchronization, and modernization initiatives. Employee pay is based on factors like relevant education, qualifications, certifications, experience, skills, seniority, location, performance, union contract and business needs.
NewSenior Security Engineer System OneSenior Security EngineerDallas, TX$120,000–$120,000 / hourdevelopers specifically Spring Security misconfigurations, endpoint exposure vulnerabilities, OAuth misconfigurations, and API security gaps providing security perspective before fixes proceed to application team sign-off. Own security-specific vulnerability triage within the assigned execution crew — reviewing access control, privilege escalation, identity, and container security findings in the vulnerability management platform and making accurate risk assessments before routing to remediation.
NewStaff Machine Learning Engineer SamsaraStaff Machine Learning EngineerDallas, TXRemoteYou believe customers are more than a number: Samsara engineers enjoy a rare closeness to the end user and you will have the opportunity to participate in customer interviews, collaborate with customer success and product managers, and use metrics to ensure our work is translating into better customer outcomes. • You want to impact the industries that run our world: The software, firmware, and hardware you build will result in real-world impact—helping to keep the lights on, get food into grocery stores, and most importantly, ensure workers return home safely.
NewSoftware Engineer II - Inline Mailflow AbnormalSoftware Engineer II - Inline MailflowDallas, TXDesign and implement core components of the SMTP relay harness, including Mail Transfer Agent (MTA) infrastructure, scalability, IP management, encryption, and DMARC support, working from conception through production operation. • Contribute to technical design discussions on how the relay integrates with existing inline products (outbound DLP, behavioral outbound, misdirected email), helping define the architecture of the broader Mail Flow platform.
NewAI Engineer SamsaraAI EngineerDallas, TXYou will collaborate with architects, engineers, and cross-functional stakeholders across Samsara to brainstorm, design, rapidly prototype, and productionalize AI-driven features and capabilities that integrate deeply into real business workflows. Samsara (NYSE: IOT) is the pioneer of the Connected Operations™ Cloud, which is a platform that enables organizations that depend on physical operations to harness Internet of Things (IoT) data to develop actionable insights and improve their operations.
NewSoftware Engineer (C# .NET Framework/SQL Server) SarnovaSoftware Engineer (C# .NET Framework/SQL Server)Dallas, TXThe position is well suited for an engineer who enjoys working with complex systems, troubleshooting production issues, and contributing to the continued evolution and sustainability of the platform. This role focuses on supporting, enhancing, and progressively modernizing enterprise and legacy applications using C#, NET Framework, and SQL Server.
Design Engineer Butler America AerospaceDesign EngineerGrand Prairie, TX$60–$71 / hourContractorInvestigates pertinent design factors such as ease of manufacture, availability of materials and equipment, interchangeability, replace ability, strength-weight efficiency, and contractual specification requirements and cost. Identifies design errors, omissions, and other deficiencies, and recommends revisions and/or improvements in design layout to responsible engineers or designers.
NewInfrastructure Engineer - Intermediate Pinnacle Technical ResourcesInfrastructure Engineer - IntermediatePlano,, TexasContractorRoles and Responsibilities:As a member of the Infrastructure Engineering team, candidates will play a big part in Planning, Strategizing, and help with designing the platforms, servers, and networks that make it possible for us to provide service to client’s customers, clients, and businesses around the globe each and every day. Maintain Mainframe Network Components: TCP/IP including DVIPA and DDVIPA configurations, IPSEC, IPFILTER, Intrusion Detection Services (IDS), Enterprise Extender (EE), SNA, VTAM, APPN, OSA connectivity interface to the Core.
NewSenior Engineer, Simulation Applications Shield AISenior Engineer, Simulation ApplicationsDallas, TXA successful applicant will bring multifaceted backend and simulation tools expertise to create comprehensive training applications used to train Operators of Shield AI’s UAVs in the field. The Software Integration & Operations (SIO) team builds and sustains the release systems that make safe, rapid, and repeatable deployment of aircraft software possible.
NewGround System Software Engineer Shield AIGround System Software EngineerDallas, TXYoull work at the intersection of all major components of the XBat systems, providing user-facing applications to operate XBat and will be collaborating closely with our Aircraft Software, Hivemind, and Flight Test teams to design this state of the art ground system. This role focuses on building robust ground control stations, mission planning tools, and communication interfaces that enable the XBat mission, supports operational requirements safe and efficient drone operations.
NewCivil/Structural Engineer LeidosCivil/Structural EngineerFort Worth, TX$73,450–$132,775This position involves the development of project plans, project scopes, schedules, costs, and resource requirements and the development of drawings, specifications, and risk management documents in coordination with facility stakeholders from Technical Operations and Air Traffic organizations. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.
NewSenior Software Engineer, Adaptive Classification Team AbnormalSenior Software Engineer, Adaptive Classification TeamDallas, TXCollaborate with Technical Program Managers, Product Managers, and Go-To-Market teams in order to implement, verify, and iterate on the issues & requests coming from our customers. The team’s goal is to automate security analysts workflows by providing them with reliable, intuitive, and delightful agentic products that give them back time in their day.
NewSoftware Engineer II, Messaging Security Products AbnormalSoftware Engineer II, Messaging Security ProductsDallas, TXThe engineer will be responsible for building and maintaining comprehensive products, ensuring seamless integration from the database layer to the user interface, with a primary focus on back-end development and some front-end responsibilities (80% back end, 20% front end). • Design and execute software projects that are crucial to Abnormal’s success, in collaboration with a team of engineers, through conception, design, implementation, launch, and operation.
NewSenior Software Engineer - Route Execution SamsaraSenior Software Engineer - Route ExecutionDallas, TXRemoteYou believe customers are more than a number: Samsara engineers enjoy a rare closeness to the end user and you will have the opportunity to participate in customer interviews, collaborate with customer success and product managers, and use metrics to ensure our work is translating into better customer outcomes. • You want to impact the industries that run our world: The software, firmware, and hardware you build will result in real-world impact—helping to keep the lights on, get food into grocery stores, and most importantly, ensure workers return home safely.
NewSystems Engineer II – Infrastructure 2 (Onsite) RaytheonSystems Engineer II – Infrastructure 2 (Onsite)Richardson, TXYou will gain invaluable experience collaborating with our systems engineering experts, security and crypto certification specialists, customer base, and SAOC engineering team, learning exactly what it takes to deliver a security hardenedproductwhile employing next-generation systems engineering tools andprocesses. YOU willparticipatein the systems development lifecycle,developing typical systems artifacts that includetradestudies, system design, requirements definition, requirements allocation, requirement traceability,ICD creation,systems integration, verificationtestingand qualification.
NewProduct Engineer II – Utility Solutions EsriProduct Engineer II – Utility SolutionsDallas, TXRemote$79,664–$133,120 / yearAs the Product Engineer II – Utilities, you will collaborate with customers, industry teams, and other product development team members to design, develop, and support the right geospatial solutions for electric, gas, water, sewer, stormwater and telecommunications agencies. Design and author test cases for functionality, performance, scalability, and durability; execute both manual and automated tests, analyze test results, and report results.
Linux Engineer BC ForwardLinux EngineerAddison, TX$68–$68.25 / hourFull timeThe ideal candidate will have strong experience in Linux engineering, scripting, automation, and infrastructure operations and a proven ability to design, implement, and support secure, reliable Linux environments with effective monitoring and automation. With delivery centers and offices across North America and India, we take pride in building long-term relationships and delivering excellence through innovation, collaboration, and integrity.
NewFire Protection Engineer Allied Fire ProtectionFire Protection EngineerCarrollton, TXThe ideal candidate is capable of working independently on specialty occupancies and can contribute meaningfully to both internal coordination and external interface with AHJs, architects, and clients. This is a mid-level role intended for an individual with strong technical proficiency in code interpretation, narrative development, and fire protection system design.
UAT Application Support Engineer BC ForwardUAT Application Support EngineerPlano, TX$68–$68.25 / hourFull timeThe ideal candidate will have strong experience in UAT and production support, test environment coordination, and application/infrastructure operations and a proven ability to prepare and maintain UAT environments, coordinate multi-team releases, and ensure reliable deployments. With delivery centers and offices across North America and India, we take pride in building long-term relationships and delivering excellence through innovation, collaboration, and integrity.
Core Network Engineer 5G EclaroCore Network Engineer 5GRichardson, TX$120,000–$125,000 / yearFull timeIn-depth knowledge of mobile voice and data core network architecture (including MNO and MVNO / MVNE infrastructure architecture) as well as network topology, including ability to describe the key elements of a mobile network and understand how the components function and interact as well as how mobile calls are made and received and how mobile data sessions work both in VoLTE and VoNR environments. Responsibilities:Core Network Design, Deployment and Management:Design, deploy, operate, and maintain 5G Core Network (5GC) components including AMF, SMF, UPF, NRF, PCF, AUSF, and UDM across both SA and NSA deployments.
NewSr Data Engineer Lennar HomesSr Data EngineerIrving, TXFull timeLennar is one of the nation's leading homebuilders, dedicated to making an impact and creating an extraordinary experience for their Homeowners, Communities, and Associates by building quality homes and providing exceptional customer service, giving back to the communities in which we work and live in, and fostering a culture of opportunity and growth for our Associates throughout their career. This role sits at the center of a major infrastructure transformation—migrating our core data platform to AWS and Snowflake—and will be critical to ensuring that work is delivered with engineering rigor, operational resilience, and clear knowledge transfer back to the internal team.
Sr. Network Engineer EclaroSr. Network EngineerArlington, TX$80–$85 / hourFull timeEffectively communicate with management and non-technical personnel on any technology issue to ensure they understand the nature of the issue and current statue easily understood on any outage conference calls. Advanced understanding of network services and networks protocols (to include but not limited to): BGP, OSPF, EIGRP, HSRP, VRRP, VRF, VTP, DHCP, DNS.
Sr. Integration, Data & AI Engineer Dexter TechnologiesSr. Integration, Data & AI EngineerDallas, TX$140,000–$180,000 / yearFull timePartner Oversight & Governance Own the technical relationship across all implementation partners for Sage Intacct, BuildOps, Miter, and Ramp — attending configuration sessions, reviewing API and data model decisions, and ensuring every buildout aligns to the multi-tenant architecture. · Debugging & Pipeline Health Be the first line of diagnosis when pipelines break or data is wrong — isolate whether the failure is in the source API, Workato recipe logic, watermark drift, or Snowflake schema before engaging partner support.
Security Engineer II Lennar HomesSecurity Engineer IIIrving, TXFull timeSystems Security: Support enterprise IAM solutions that collectively deliver single sign-on (SSO), multifactor authentication (MFA), identity governance and administration, and privileged access management for all types of identities, including on-premises, hybrid, cloud-only, non-human (service accounts), and application-based credentials (API keys, tokens). Design and implement identity and access controls for AI agents and non-human identities (service accounts, bots, APIs, workloads), including lifecycle management, secrets management, least-privilege roles, and monitoring of machine-to-machine access in alignment with Zero Trust principles.
Core Network Engineer (IMS) EclaroCore Network Engineer (IMS)Richardson, TXFull timeSupport Roaming and Wholesale teams in the implementation of new roaming agreements, with particular focus on VoLTE and VoNR roaming, including configuration support, IREG testing, and fault resolution during commercial launch of service. Projects:Work with Solution Architects to turn solutions designed for wholesale customers into High Level Design (HLD) documentation. The role focuses on the day-to-day operation, troubleshooting and optimization of the IMS platforms and interconnections . Operational ownership of IMS infrastructure components, including lifecycle management, configuration, software upgrades, vendor coordination, capacity planning, and fault resolution.
Sr. Manager - Infrastructure Operations Engineer Imprimis GroupSr. Manager - Infrastructure Operations EngineerDallas, TXRemote$120,000–$150,000 / yearThis is a highly visible, hands-on role supporting a global infrastructure environment across cloud, systems, networking, identity management, and endpoint technologies. #IMPRIMISGROUP #APPLYTODAY #INFRASTRUCTUREENGINEER #AZURE #INTUNE #PLATFORMENGINEER #DIRECTHIRE #TECHCAREERS.
Lead Systems Operations Engineer Wells Fargo & CoLead Systems Operations EngineerIrving, TXThey are accountable for execution of all applicable risk programs (Credit, Market, Financial Crimes, Operational, Regulatory Compliance), which includes effectively following and adhering to applicable Wells Fargo policies and procedures, appropriately fulfilling risk and compliance obligations, timely and effective escalation and remediation of issues, and making sound risk decisions. Operational Automation: Develop or enhance automation (Python, Bash, GitOps workflows, or AI‑assisted tools), build AI Agents, MCP server and tools, add skill in MCP that eliminates manual effort and streamlines run processes.
ConvergeHEALTH - Data Operations Engineer, Expert Services-Innovation_Delivery_Transformation Deloitte Touche Tohmatsu LtdConvergeHEALTH - Data Operations Engineer, Expert Services-Innovation_Delivery_TransformationTX$82,600–$162,800 / yearp>Data Operations Engineers operate at the intersection of data engineering, product, and delivery - primarily collaborating with internal engineering, data, and product teams, and occasionally engaging with client teams and Deloitte Consulting practitioners to ensure data flows are reliable, performant, and continuously improving based on real-world delivery experience. Forward-thinking engineering mindset, including fluency with modern code collaboration workflows (Git, pull requests, code review), practical use of AI-assisted development tools (e.g., Claude Code, GitHub Copilot), and curiosity about emerging AI/ML techniques such as agentic patterns, RAG, and vector databases.