By Light Professional IT ServicesDevOps Engineer By Light Professional IT ServicesDevOps EngineerHanover, MDAbility to perform many duties involving DevOps functions including, but not limited to, authoring and maintaining automation deployment and monitoring scripts, researching, implementing and maintaining Continuous Integration / Continuous Delivery (CI-CD) tools and processes, automating application deployments, managing virtualized and containerized assets, creating virtual and physical network configurations, servers, communications, and test and developer engineering support. Interact with developers to understand software changes that will impact development and testing activities, examine any relevant change implementation, then report the changes to developers and testers welcoming feedback for future improvements.
LeidosNewSenior DevOps Engineer LeidosSenior DevOps EngineerGaithersburg, MD$107,900–$195,050The Leidos Spatial Solutions Division has an exciting opportunity for a senior DevOps Engineer to assist with the development, integration, deployment, and sustainment of mission critical systems that enable NGA's Geospatial Intelligence (GEOINT) mission collecting sciences, technology and tradecraft measuring and modeling the Globe to provide three-dimensional accuracy of every point in, on, or above the Earth. Typically requires a BS in Information Systems, Information Technology, Computer Science or closely related discipline and 8+ years of prior relevant experience or Masters with 6+ years of prior relevant experience.
Global TechPro, LLCNewDevOps/Platform Engineer - Secret Cleared Global TechPro, LLCDevOps/Platform Engineer - Secret ClearedArlington, VAFull timeYou’ll have a designated team home but will routinely participate in cross-team projects, training, and knowledge sharing, gaining hands-on exposure to a diverse set of tooling and environments. We are seeking an Automation Engineer to work together across our DevOps teams, building broad expertise in infrastructure automation, CI/CD, and platform support.
System OneNewSr. Quality Assurance Engineer (Azure DevOps/ JIRA/ GITLAB) System OneSr. Quality Assurance Engineer (Azure DevOps/ JIRA/ GITLAB)Washington, DCQuality Assurance Engineer to the CRAFT team to leverage Agile best practices, test automation, and attention to detail to ensure successful delivery of an exam workflow tool. Experience in designing and implementing in Playwright and/or Selenium automation frameworks (e.g., Page Object Model, BDD, Data Driven etc.).
LeidosNewOperations DevOps Platform Engineer LeidosOperations DevOps Platform EngineerCamp Springs, MD$107,900–$195,050Bachelor's degree in information systems, computer science, information security or related field and 8+ years of prior relevant work experience or a Master's degree and 6+ years of relevant experience, additional years of experience will be accepted in lieu of a degree. Design automated workflows and integrations connecting Power Apps and Power BI to external databases, Azure services, and REST APIs using Power Automate.
LeidosNewDevOps Software Engineer - TS/SCI Cleared LeidosDevOps Software Engineer - TS/SCI ClearedBethesda, MD$107,900–$195,050Leidos is looking for our next TS/SCI‑cleared DevOps Software Engineer to join a high‑energy team building and deploying a cutting‑edge technology stack in support of the DIA‑NMEC (National Media Exploitation Center) DOMEX Technology Platform (DTP). 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.
ADG TECH CONSULTING, LLCNewDevOps Engineer ADG TECH CONSULTING, LLCDevOps EngineerSterling, VAFull timeHands-on experience with AWS managed services (VPC, EC2, EKS, RDS), including monitoring and analytics tools such as AWS CloudWatch, NewRelic. OperationsMaintain, monitor, and help improve the performance and availability of the 24x7 production environment including networks, servers, databases, etc.
LeidosNewDevOps Engineer LeidosDevOps EngineerBethesda, MD$107,900–$195,050If 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. April 17, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
JobotSenior Software Engineer (C++ / Java) JobotSenior Software Engineer (C++ / Java)MONTGOMRY VLG, MD$165,000–$185,000 / yearWith deep expertise in cloud-first architectures, automation, DevSecOps, virtualization, reliability engineering, and large-scale systems integration, we help organizations modernize infrastructure, improve operational efficiency, and support mission-critical environments where performance, security, and resiliency are essential. This role is ideal for a seasoned engineer who enjoys solving complex technical challenges, contributing to system architecture, and partnering closely with Systems Engineering, Development, and Test teams to deliver robust, scalable solutions.
JobotSr. Software Engineer JobotSr. Software EngineerGaithersburg, MD$140,000–$165,000 / yearWith deep expertise in cloud-first architectures, automation, DevSecOps, virtualization, reliability engineering, and large-scale systems integration, we help organizations modernize infrastructure, improve operational efficiency, and support mission-critical environments where performance, security, and resiliency are essential. Our teams partner closely with customers to deliver innovative solutions across cloud strategy, cybersecurity, systems integration, data engineering, machine learning, AI, disaster recovery, and enterprise infrastructure initiatives.
JobotJunior Software Systems Integration Engineer - RHEL - Secret Clearance Required JobotJunior Software Systems Integration Engineer - RHEL - Secret Clearance RequiredManassas, VA$90,000–$115,000 / 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. Integrating and testing software deliveries, verifying bug fixes, and performing regression testing across multiple hardware and operating system configurations.
JobotJunior Linux Systems Engineer (RHEL/Clearance) JobotJunior Linux Systems Engineer (RHEL/Clearance)Manassas, VA$80,000–$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. Integrating and testing software deliveries, verifying bug fixes, and performing regression testing across multiple hardware and operating system configurations.
JobotSoftware/Systems Integration Engineer (Secret Clearance Required) JobotSoftware/Systems Integration Engineer (Secret Clearance Required)Manassas, VA$95,000–$115,000 / 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 seeking a proactive Junior Systems/Software Integration Engineer to assist with the deployment, configuration, and validation of complex software solutions across multiple computing environments.
JobotSoftware Engineer JobotSoftware EngineerArlington, VA$120,000–$150,000 / 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. If you have a solid grounding in software engineering, continuous delivery, and computer science, and are looking for a career opportunity to grow and leverage those skills to the fullest while working on cutting edge technologies – Here is the place to be!
System OneLead Systems Engineer - AWS Cloud System OneLead Systems Engineer - AWS CloudReston, VA$96.21–$99 / hourMentor junior and senior team members, install, tune, upgrade, troubleshoot, and maintain all relevant computer systems including OS administration, user management, and networking. Implement risk and opportunity management plans, assess risks, develop mitigation and disaster recovery plans, and oversee engineering project planning and execution.
CredenceDevSecOps Engineer CredenceDevSecOps EngineerMcLean, VAThe position focuses on enabling reliable and scalable software delivery by building and optimizing CI/CD pipelines, infrastructure automation, and deployment workflows, while improving developer experience, release velocity, application quality, and system reliability across multi-stack environments. This role supports a variety of modern applications, including backend services, frontend applications, and data pipelines, with a strong emphasis on pipeline engineering, Infrastructure as Code (Terraform), and cloud-native deployments.
PlanIT GroupNewIT- Cyber Security Architect/ Engineer III PlanIT GroupIT- Cyber Security Architect/ Engineer IIIFalls Church, VASecuring AI Workflows: Design security frameworks for the end-to-end AI lifecycle, including securing data ingestion, protecting model weights, and implementing "Guardrail" architectures for Large Language Models (LLMs). • AI-Enhanced Pipeline Security: Architect and maintain automated CI/CD pipelines that utilize AI/ML models for static and dynamic analysis (SAST/DAST) to identify complex vulnerabilities that traditional rule-based tools miss.
RightDirection Technology SolutionsNewAWS Cloud Security Engineer - Cleared RightDirection Technology SolutionsAWS Cloud Security Engineer - ClearedWashington, DCDescription:RDTS is seeking a skilled AWS Security Engineer to design, implement, and maintain secure cloud architectures within AWS. This role is responsible for strengthening cloud security posture, implementing preventative and detective controls, and ensuring compliance with organizational and regulatory requirements.
Vaco LLCNewSenior Python Full Stack Engineer Vaco LLCSenior Python Full Stack EngineerMcLean, VA$130,000–$150,000Determining 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. Vaco by Highspring values a diverse workplace and strongly encourages women, people of color, LGBTQ+ individuals, people with disabilities, members of ethnic minorities, foreign-born residents, and veterans to apply.
Grafana LabsStaff Software Engineer Grafana LabsStaff Software EngineerWashington DC, DCRemoteGrafana Labs also helps more than 3,000 companies -- including Bloomberg, JPMorgan Chase, and eBay -- manage their observability strategies with the Grafana LGTM Stack, which can be run fully managed with Grafana Cloud or self-managed with the Grafana Enterprise Stack, both featuring scalable metrics (Grafana Mimir), logs (Grafana Loki), and traces (Grafana Tempo). Our enterprise and SaaS offerings allow customers to load test their systems by running distributed tests from 15+ regions worldwide, using hundreds of thousands of virtual users sending millions of requests per second.
OneMain FinancialNewLead Software Engineer OneMain FinancialLead Software EngineerBaltimore, MD$96,000–$115,200 / yearThe ideal candidate will have in-depth experience with Workforce Management (WFM), Customer Relationship Management (CRM) systems, call recording solutions, dialers, reporting tools, API integrations, and a strong hands-on working knowledge of NiceCX systems. Data modeling experience to design, develop, and maintain GraphQL APIs and Data Solutions using RDBMS like Aurora, Postgres, and in-memory data stores like Amazon Memory DB and Redis, ensuring optimal performance, data integrity, availability and scalability.
MicrosoftSite Reliability Engineer - CTJ - POLY MicrosoftSite Reliability Engineer - CTJ - POLYReston, VA$119,800–$234,700 / yearMasters Degree in Computer Science, Information Technology, or related field AND 2+ years technical experience in software engineering, network engineering, or systems administration OR Bachelors Degree in Computer Science, Information Technology, or related field AND 4+ years technical experience in software engineering, network engineering, or systems administration OR equivalent experience. Our team works across all facets of isolated system engineering and is deeply involved in defining and improving service health through SLIs/SLOs and error budgets, building automation to reduce toil, strengthening observability (logs, metrics, traces), reducing systemic latency, validating and transforming data, and optimizing throughput and capacity.
MicrosoftSoftware Engineer II - CTJ - Poly MicrosoftSoftware Engineer II - CTJ - PolyReston, VA$100,600–$199,000 / yearThere is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $131,400 - $215,400 per year. As a Software Engineer II in Microsoft’s Sovereign Cloud Security team, you’ll help design, deliver, and secure highly reliable services that underpin both internal security platforms and customer‑facing cloud offerings.
C3 AISenior/Lead Site Reliability Engineer – Federal C3 AISenior/Lead Site Reliability Engineer – FederalTysons, VAC3 AI delivers a family of fully integrated products including the C3 Agentic AI Platform, an end-to-end platform for developing, deploying, and operating enterprise AI applications, C3 AI applications, a portfolio of industry-specific SaaS enterprise AI applications that enable the digital transformation of organizations globally, and C3 Generative AI, a suite of domain-specific generative AI offerings for the enterprise. • Demonstrated experience in deploying, managing, and operating scalable and fault-tolerant Kubernetes-based infrastructure in AWS and Azure clouds; on-premise deployment experience preferred.
OneMain FinancialNewStaff Software Engineer (React, TypeScript, Rails, Node) OneMain FinancialStaff Software Engineer (React, TypeScript, Rails, Node)Baltimore, MD$110,000–$132,000 / yearIn this role, you will work closely with Product, UX, Engineering Managers, and other senior engineers to shape platform architecture, guide technical direction, and deliver scalable, high-quality software that improves the financial wellness of our customers. See OneMain Financial Privacy Policy at https://www.onemainfinancial.com/legal and SonicJobs Privacy Policy at https://www.sonicjobs.com/us/privacy-policy and Terms of Use at https://www.sonicjobs.com/us/terms-conditions.
RightDirection Technology SolutionsNewAWS Cloud ETL Engineer - Cleared RightDirection Technology SolutionsAWS Cloud ETL Engineer - ClearedWashington, DCKey Responsibilities: Design, develop, and maintain ETL/ELT pipelines using AWS services such as AWS Glue, Lambda, Step Functions, and EMR. Description:RDTS is seeking an experienced AWS ETL Engineer to design, build, and maintain scalable data pipelines in a cloud-native environment.
Grafana LabsStaff AI Engineer Grafana LabsStaff AI EngineerWashington DC, DCRemoteGrafana Labs also helps more than 3,000 companies -- including Bloomberg, JPMorgan Chase, and eBay -- manage their observability strategies with the Grafana LGTM Stack, which can be run fully managed with Grafana Cloud or self-managed with the Grafana Enterprise Stack, both featuring scalable metrics (Grafana Mimir), logs (Grafana Loki), and traces (Grafana Tempo). • Rapid experimentation and iteration: Implement a highly iterative process where you quickly prototype, test, and validate with real users, including shipping and evolving LLM- or agent-powered workflows for incident lifecycle management and automated analysis tasks.
EsriNewSr. Product Engineer – Web Services EsriSr. Product Engineer – Web ServicesVienna, VA$93,600–$159,328 / yearExperience working with ArcGIS applications and technologies (such as ArcGIS Hub, ArcGIS Map Viewer, ArcGIS REST APIs, ArcGIS API for Python, ArcGIS Maps SDKs). You will act as a service owner and trusted decision‑maker, shaping priorities, balancing tradeoffs, and ensuring our web services remain reliable, scalable, and valuable to customers over time.
Levi, Ray & ShoupSenior Software Engineer - Remote Levi, Ray & ShoupSenior Software Engineer - RemoteWashington DC, DCRemote$125,000–$180,000 / yearOur client is seeking a Senior Software Engineer to support the development of modern, cloud‑based SaaS applications for a technology‑focused financial software client. Codeworks, an LRS company, is seeking a Senior Software Engineer for a direct‑hire, fully remote opportunity supporting one of our client partners.
Levi, Ray & ShoupSoftware Engineers - Remote Levi, Ray & ShoupSoftware Engineers - RemoteWashington DC, DCRemote$35–$65 / hourProven experience in developing Applications and Websites using, HTML, CSS, JavaScript libraries, Java/Open JDK v11 and up, C#. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training.
Levi, Ray & ShoupSoftware Engineer II - Remote Levi, Ray & ShoupSoftware Engineer II - RemoteWashington DC, DCRemote$35–$60 / hourProven experience in developing Applications and Websites using, HTML, CSS, JavaScript libraries, Java/Open JDK v11 and up, C#. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training.
LeidosNewNetwork Development Engineer LeidosNetwork Development EngineerArlington, VA$59,150–$106,925Bachelor’s degree in engineering or related field with 2+ years of prior relevant experience or a master’s degree with at least a year experience in one of these areas: computer engineering, software engineering, test engineering or related field. A Network Development Engineer (NDE) designs, builds, and automates large-scale data networks, focusing on scalability, reliability, and performance.
Tenable Network SecurityNewSenior Software Engineer Tenable Network SecuritySenior Software EngineerColumbia, MD$137,500–$183,500 / yearAs a Senior Software Engineer, you will build and optimize highly scalable microservices and user experiences, leveraging modern programming languages, frameworks, and cloud technologies. You will play a pivotal role in designing, developing, and maintaining cloud-native, large-scale cybersecurity products that protect organizations worldwide.
LeidosNewSr Azure Virtual Desktop Engineer LeidosSr Azure Virtual Desktop EngineerAlexandria, VA$131,300–$237,350The Digital Modernization Sector at Leidos is seeking a Sr Azure Virtual Desktop Engineer to support cloud modernization initiatives for the United States Coast Guard (USCG) at Command, Control, Communication, Computer, Cyber, and Intelligence Service Center (C5ISC) in the Alexandria, VA area. 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.
System OneSenior IT DevSecOps Engineer (onsite) System OneSenior IT DevSecOps Engineer (onsite)Washington, DCThey will be responsible for designing, implementing, and maintaining secure, scalable, and efficient cloud infrastructure for multiple environments (e.g., development, testing, staging, production) of the new application. The DevSecOps Engineer will be instrumental in establishing best practices for cloud-native application development, enhancing our security posture, and enabling agile and efficient operations.
LeidosLead Software Engineer LeidosLead Software EngineerGaithersburg, MD$87,100–$157,450The TFDM program is a Federal Aviation Administration’s (FAA) NextGen program based on airport surface management that provides efficiency for both the airport surface and terminal airspace by providing a new and comprehensive integrated surface traffic control and management system. 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.
YugabytePlatform Software Engineer (Control Plane) - Remote YugabytePlatform Software Engineer (Control Plane) - RemoteWashington DC, DCRemoteTogether, our hard-working team of experts and our industry-leading technology are uniquely positioned to meet the demands of modern workloads: geo-distributed, ultra-resilient, and built to scale without limits. The team works on cutting-edge technologies in cloud computing, container orchestration, and distributed systems that make database management more accessible and efficient while ensuring scalability, security, and reliability.
Kastle SystemsPrincipal Software Engineer Kastle SystemsPrincipal Software EngineerFalls Church, VAWe are looking for an experienced Principal Software Engineer who will be responsible for developing and maintaining our flagship product assets. • Secure our software by addressing any vulnerabilities and by writing high-performing, scalable, and secure software to meet customer demands.
LeidosNewLead Software Engineer, Data & DevSecOps LeidosLead Software Engineer, Data & DevSecOpsArlington, VA$131,300–$237,350Implement software release version control, provide release management support throughout a software product's life cycle (initial software development through promotion to Test, QA and Production Environments), ensuring the consistency and reliability of software builds. Minimum of 10 years of hands-on technical experience in at least three of the following areas: Oracle, SQL Server, Java, engineered systems, cloud technologies, data integration, automated testing and deployments, and DevSecOps.
LeidosNewSenior Software Engineer LeidosSenior Software EngineerBethesda, MD$107,900–$195,050This role supports our client’s efforts to design and implement a cutting-edge data-centric architecture leveraging cloud-based computing, artificial intelligence (AI), machine learning (ML), and cross-domain transfer systems. 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.
MicrosoftSoftware Engineer II - CTJ - Top Secret MicrosoftSoftware Engineer II - CTJ - Top SecretReston, VA$100,600–$199,000 / yearCollaboration skills will be required to work closely with other engineering teams to ensure services and systems are highly stable, meet performance Service level agreements (SLA), and meet the expectations of internal and external customers and users. The Microsoft Security organization accelerates Microsoft’s mission and bold ambitions to ensure that our company and industry is securing digital technology platforms, devices, and clouds in our customers’ heterogeneous environments, as well as ensuring the security of our own internal estate.
eSolutionsFirst, LLCSDET/ Automation Engineer eSolutionsFirst, LLCSDET/ Automation EngineerVienna, VAFull timeWe are looking for an Application Automation Tester with experience in automation testing using Java, NET, or Python. We are looking for strong Automation Engineers with hands-on experience in Selenium or Playwright.
LeidosNewChief Software Engineer LeidosChief Software EngineerReston, VARemote$154,050–$278,475In this role, you will be responsible for enterprise software architecture across multiple contracts/task orders, lead architecture governance, lead and oversee the planning and development of overall systems architectures, drive/perform analysis of alternatives to ensure mission solutions are secure, scalable, operable, and cost-effective. Expert knowledge of modern software architecture (distributed systems, microservices, UI/UX design, APIs, event-driven patterns) and cloud platforms (AWS, Azure, GPC, Oracle) including designing for scale, reliability, and maintainability.
LeidosNewSenior Systems Engineer LeidosSenior Systems EngineerBethesda, MD$131,300–$237,350Leidos is seeking a mission-driven Senior Systems Engineer (Data Engineering) to join our high-impact team supporting the National Media Exploitation Center (NMEC) DOMEX Technology Platform (DTP). Provide specific input to the software components of system design to include hardware/software trade-offs, software reuse, use of COTS/GOTS in place of new development, and requirements analysis and synthesis from system level to individual software components.
LeidosNewSystems Engineer LeidosSystems EngineerBethesda, MD$131,300–$237,350This may include decomposing features into workable stories, prioritizing or reprioritizing items in the backlog for upcoming sprints, refining acceptance criteria and complexity estimates or removing tickets that are no longer relevant. Leidos has an exciting opening for you, as our next TS/SCI cleared Systems Engineer, to play a critical role with design, engineering, development and deployment of software supporting the DIA-NMEC (National Media Exploitation Center) DOMEX Technology Platform (DTP).
LeidosNewPrincipal Software Engineer (SWE-4) LeidosPrincipal Software Engineer (SWE-4)Annapolis Junction, MD$131,300–$237,350Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. Seeking an experienced and talented software developer to join an existing team that develops and manages software products and tools integral to discovering new mobile data related to the mission.
LeidosNewSr. Software Engineer TS/SCI Polygraph LeidosSr. Software Engineer TS/SCI PolygraphAlexandria, VA$131,300–$237,350You will provide software process management and control throughout the coding portion of the software development process and will promote code reuse and cross-program collaboration while reducing maintenance costs by creating common functions and shared actions for developers and testers. Must have experience or familiarity with multiple Java frameworks: Spring to include Boot and Data, Java Enterprise Edition (JEE) (i.e., JPA, EJB, JTA, Servlet), Jackson, Jersey, Swing, JavaFX.
LeidosNewPrincipal Software Engineer / Tech Lead LeidosPrincipal Software Engineer / Tech LeadArlington, VA$131,300–$237,350Implement software release version control, provide release management support throughout a software product's life cycle (initial software development through promotion to Test, QA and Production Environments), ensuring the consistency and reliability of software builds. 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.
Company ConfidentialSenior Drupal Architect Company ConfidentialSenior Drupal ArchitectWashington DC, DCFull timeWeb Development Skills: Proficiency in PHP, MySQL, HTML, CSS, and JavaScript; working knowledge of additional languages and frameworks (.NET, Python, Ruby, Swift, SQL Server). Modern API Frameworks: Strong experience building scalable APIs using Node.js, FastAPI (Python), Bun, or similar modern backend technologies.