Senior Developer - Linear Integrated Ordered Network Redesign Compu-Vision Consulting Inc.Senior Developer - Linear Integrated Ordered Network RedesignNew York City, NY$90–$100 / hourDemonstrated proficiency with ESRI product suite, including ArcGIS Pro, ArcGIS Enterprise (Server, Portal, SDE DataStore), ArcGIS Desktop, ArcGIS Online, and ArcMap. Utilize Azure services to build scalable and reliable cloud-based applications, leveraging services such as Azure App Service, Azure SQL Database, and Azure Functions.
Senior Java Developer Tata Consultancy Services LtdSenior Java DeveloperJersey City, NJ$100,000–$125,000 / yearDevelop and implement event-driven, real-time data processing solutions leveraging Kafka, with a strong focus on performance optimization, fault tolerance, and data integrity. Drive integration of backend services with modern UI frameworks (ReactJS - preferred) and ensure seamless interaction with upstream/downstream systems, APIs, and batch processes.
NewSenior Software Engineer MicrosoftSenior Software EngineerNew York, NY$119,800–$234,700 / yearMasters Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR Bachelors Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python. There 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 $160,200 - $261,000 per year.
Senior Full Stack Developer CrossTech Consulting Group, IncSenior Full Stack DeveloperBrooklyn, NY$90–$100 / hourCrossTech is seeking a Senior Full- Stack Developer to join an established product and engineering team supporting mission-critical education technology platforms. This is a long-term staff augmentation role, where the developer will contribute to continuously evolving product features, enhancements, and operational needs.
REMOTE- Sr Full-Stack Developer IT Accel, IncREMOTE- Sr Full-Stack DeveloperMorristown, NJRemoteThe ideal candidate is comfortable working directly with business stakeholders to understand requirements, propose technical solutions, navigate ambiguity, and own projects from design through implementation. You'll have the autonomy to influence technical decisions, collaborate closely with business partners, prototype solutions, and help shape applications from initial concept through production delivery.
Python Developer - Vice President - RUTHERFORD Citigroup IncPython Developer - Vice President - RUTHERFORDRutherford, NJ$142,320–$213,480 / yearAppropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency. Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements to deploy new products and process improvements.
Java Developer Specialist Deloitte Touche Tohmatsu LtdJava Developer SpecialistNew York, NY$120,000–$140,000 / yearThe wage range for this role takes into account the wide range of factors that are considered in making compensation decisions including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs. Our purpose comes through in our work with clients that enables impact and value in their organizations, as well as through our own investments, commitments, and actions across areas that help drive positive outcomes for our communities.
Equities Low Latency Java Algo Developer - Vice President Citigroup IncEquities Low Latency Java Algo Developer - Vice PresidentJersey City, NJ$142,320–$213,480 / yearAppropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency. We are re‑engineering our technology estate to achieve world‑leading performance and resiliency, enabling new capabilities in advanced execution, global market connectivity, and modernised post‑trade, clearing and margin processes.
Java Developer, Assistant Vice President Citigroup Inc.Java Developer, Assistant Vice PresidentNew York, NY$121,200–$181,800 / yearCiti is seeking a highly motivated and curious engineer as a trading tool developer to work embedded within the Systematic & Credit Portfolio Trading business. You will rapidly iterate on revenue-making & risk-reducing tooling, learn the business context, and balance strategic builds versus immediate needs.
Senior Web UI Developer (React), New York ION GroupSenior Web UI Developer (React), New YorkNew York, NY$160,000–$185,000 / yearThe base salary range across different levels are - Mid to Senior level – $160,000 - $185,000 Placement within the range provided above is based on the individual’s relevant experience and skills for the role and level. We respect the varied identities, abilities, cultures, and traditions of the individuals who comprise our organization and recognize the value that different backgrounds and points of view bring to our business.
Senior Principal Developer Novartis AGSenior Principal DeveloperNY$63,490–$117,910 / yearMinimum requirement:MSc in a quantitative / computational science or eqivalentExperience as an R developerDeep knowledge of data manipulation (tidyverse) and data visualization (ggplot2, plotly).Demonstrated ability to develop production-grade R packages, including comprehensive documentation and rigorous testing frameworks. Read our brochure to learn more about our global total rewards offering: https://www.novartis.com/sites/novartis_com/files/novartis-life-handbook.pdfNote : Benefits and compensation may vary by country and are subject to local legal requirements, including provisions of collective bargaining agreements where applicable.
Sr Java Webservices Developer - Whippany NJ Georgia Tek SystemsSr Java Webservices Developer - Whippany NJWhippany, NJExperience or high-level knowledge with tools like Junit, Sonar, Jenkins, SVN, Chef, Puppet, Nolio, Selenium, QTP, Assana, Jira or Rally (3 or more). Strong Proven experience in commercial Development of Web Facing applications using Java as the core language to perform highly concurrent functions.
Cobol Developer-Berkeley Heights, NJ Georgia Tek SystemsCobol Developer-Berkeley Heights, NJBerkeley Heights, NJRequired: 8 years of mainframe experience in IBM JCL, CA7, JCL, and utilities, COBOL, REXX, EasyTrieve, VSAM, IDMS, Endevor, File Master, Dispatch, View, UniTech and Remedy utilities. Education: Bachelor's degree with 8 years of experience in applicable field OR Advanced Degree in applicable field with 6 years of relevant experience.
PHP Developer - Whippany, NJ (Hybrid) Georgia Tek SystemsPHP Developer - Whippany, NJ (Hybrid)Whippany, NJNote: Please allow me to reiterate that I chose to contact you either because your resume had been posted to one of the internet job sites to which we subscribe, or you had previously submitted your resume to Gerogia IT Inc I assumed that you are either looking for a new employment opportunity, or you are interested in investigating the current job market. Participate and contribute in the full project life cycle, including gathering requirements, system design, implementation, testing, deployment, and support of applications using PHP, JavaScript.
NewSenior Curriculum Developer & Instructor ClickHouse, Inc.Senior Curriculum Developer & InstructorNYRemote$132,000–$166,000 / yearWe deliver training in many formats, including on-demand at ClickHouse Academy; live training delivered online via Zoom; in-person training for customers; and training at community events and conferences. With more than 3,000 customers and ARR that has grown over 250 percent year over year, ClickHouse leads the market in real-time analytics, data warehousing, observability, and AI workloads.
COBOL Developer - Berkeley Heights, NJ Georgia Tek SystemsCOBOL Developer - Berkeley Heights, NJBerkeley Heights, NJ8 years of mainframe experience in IBM JCL, CA7, JCL, and utilities, COBOL, REXX, EasyTrieve, VSAM, IDMS, Endevor, File Master, Dispatch, View, UniTech and Remedy utilities. Key Technology: IBM JCL, CA7, JCL, COBOL, REXX, EasyTrieve, VSAM, IDMS, Endevor, File Master, Dispatch, View, UniTech .
ServiceNow Developer Artech LLCServiceNow DeveloperStamford, CT$55–$60 / hourTechnical: Experience with key technologies relevant to ServiceNow integration solutions including: SSO, SAML, SSL, Web Services, LDAP, JDBC, ODBC, REST, knowledge of the ServiceNow ITAM, ITOM & CMDB Products. Build high-quality, clean, scalable, and reusable code by enforcing best practices around software engineering architecture and processes (Code Reviews, Unit testing, etc.).
ArcGIS Enterprise Developer - Application Developer Levels 1-5 Metropolitan Transportation AuthorityArcGIS Enterprise Developer - Application Developer Levels 1-5Jamaica, NY$57,100–$81,572 / yearOpening: The Metropolitan Transportation Authority is North America's largest transportation network, serving a population of 15.3 million people across a 5,000-square-mile travel area surrounding New York City, Long Island, southeastern New York State, and Connecticut. Pursuant to the New York State Public Officers Law & the MTA Code of Ethics, all employees who hold a policymaking position must file an Annual Statement of Financial Disclosure (FDS) with the NYS Commission on Ethics and Lobbying in Government (the "Commission").
Arcgis Enterprise Developer - Application Developer Levels 1-5 Metropolitan Transportation AuthorityArcgis Enterprise Developer - Application Developer Levels 1-5Jamaica, NY$57,100–$81,572 / yearOpening: The Metropolitan Transportation Authority is North America's largest transportation network, serving a population of 15.3 million people across a 5,000-square-mile travel area surrounding New York City, Long Island, southeastern New York State, and Connecticut. Pursuant to the New York State Public Officers Law & the MTA Code of Ethics, all employees who hold a policymaking position must file an Annual Statement of Financial Disclosure (FDS) with the NYS Commission on Ethics and Lobbying in Government (the "Commission").
Powerapps Developer - Application Developer Analyst Levels 1-5 Metropolitan Transportation AuthorityPowerapps Developer - Application Developer Analyst Levels 1-5New York, NY$57,100–$81,572 / yearThe Metropolitan Transportation Authority is North America's largest transportation network, serving a population of 15.3 million people across a 5,000-square-mile travel area surrounding New York City, Long Island, southeastern New York State, and Connecticut. Pursuant to the New York State Public Officers Law & the MTA Code of Ethics, all employees who hold a policymaking position must file an Annual Statement of Financial Disclosure (FDS) with the NYS Commission on Ethics and Lobbying in Government (the "Commission").
Full Stack Developer - P&C Insurance SaamaFull Stack Developer - P&C InsuranceJersey City, NJWe are seeking a hands-on Full Stack AI Consultant to accelerate our AI-in-SDLC strategy, establish agentic workflow orchestration capabilities, and embed modern engineering best practices across the organization. Design and implement agentic workflow orchestration using LangGraph, including multi-agent collaboration, tool integration, memory management, and human-in-the-loop patterns.
NewSenior Net Developer InfoPeopleSenior Net DeveloperLong Island City, NYNET Developer to join our core team focused on the "eOrder " initiativea critical project designed to modernize and streamline the electronic transmission and processing of laboratory and radiology orders between our Electronic Health Record (EHR) system and various external providers and internal services. Job Duties: Design, develop, and maintain robust integration engines and middleware using C#/.NET Core to process, parse, transform, and validate HL7 messages (v2 and potentially v3/CDA) for orders (ORM) and results (ORU).
NewVP, Senior Developer - Liquidity Risk Jefferies Financial Group IncVP, Senior Developer - Liquidity RiskNew York, NY$175,000–$225,000 / yearWhat You'll Deliver: You will lead and implement technology initiatives that support Liquidity Risk Management capabilities such as cash positioning, funding and maturity profiles, collateral/margin impacts, liquidity metrics, stress testing/scenario outputs, limits/threshold monitoring, and internal/regulatory-oriented reporting, with strong data lineage, controls, and auditability. Define and implement mappings and controls from upstream sources (e.g., Treasury platforms, GL/subledger, payments, collateral/margin systems, market/security master where needed) to downstream consumers (liquidity risk engines, stress pipelines, dashboards, internal reporting).
SharePoint Architect / Senior Developer Amalgamated BankSharePoint Architect / Senior DeveloperNew York, NY$130,000–$150,000 / yearPurpose of Position: The SharePoint Architect / Senior Developer is a hybrid leadership and hands-on role responsible for designing, developing, supporting, and maintaining the enterprise SharePoint and Microsoft 365 collaboration ecosystem. This role combines strategic architecture ownership with deep technical execution, ensuring that SharePoint solutions are well-architected, scalable, secure, and continuously supported for business operations.
Informatica Developer StratAcuity Staffing Partners IncInformatica DeveloperJersey City, NJ$65–$68 / hourIn terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. The ideal candidate will have expertise in designing, developing, and optimizing complex ETL solutions using Informatica PowerCenter and supporting enterprise-scale data warehouse environments.
MuleSoft Senior Developer- Enterprise Slalom IncMuleSoft Senior Developer- EnterpriseNY$98,000–$125,000 / yearFrom strategy through delivery, our agile teams across 52 offices in 12 countries collaborate with clients to bring powerful customer experiences, innovative ways of working, and new products and services to life. We are trusted by leaders across the Global 1000, many successful enterprise and mid-market companies, and 500+ public sector organizations to improve operations, drive growth, and create value.
Senior Python Developer – Quartz Platform Pyramid, IncSenior Python Developer – Quartz PlatformJersey City, NJ$65–$67 / hourFull timeImmediate need for a talented Senior Python Developer – Quartz Platform. This is a 12+months contract opportunity with long-term potential and is located in Jersey City, NJ or Charlotte, NC(Hybrid). Please review the job description below and contact me ASAP if you are interested. Job ID:26-22565 Pay Range: $65 - $67/hour. Em...
AML Surveillance Tools Engineer/Developer TD BankAML Surveillance Tools Engineer/DeveloperNew York, New YorkTotal Rewards at TD includes base salary and variable compensation/incentive awards (e.g., eligibility for cash and/or equity incentive awards, generally through participation in an incentive plan) and several other key plans such as health and well-being benefits, savings and retirement programs, paid time off (including Vacation PTO, Flex PTO, and Holiday PTO), banking benefits and discounts, career development, and reward and recognition. Our services include underwriting and distributing new issues, providing trusted advice and industry-leading insight, extending access to global markets, and delivering integrated transaction banking solutions.
Lead Front-End Developer Syntricate Technologies IncLead Front-End DeveloperRutherford, NJJob Qualifications and Skill SetsThe role requires an individual who is results-focused, proactive, highly collaborative, confident under pressure, and has demonstrated skill in both solution evangelism and expectation management. Strong leadership skills, excellent communication, time-management; planning, negotiation skills and presentation skills are highly desirable.
Full stack java developer Expert In Recruitment SolutionsFull stack java developerSummit, NJEnd of the data to the repository, for resources good experience in java, spring boot, j2ee technologies, kafka, distribution databases, containers. Must have: java, kafka, spring boot, microservices, container experience and distributed databases.
Java Developer FIX Expert In Recruitment SolutionsJava Developer FIXStamford, CTOur client is seeking a Java Developer with strong experience in Equities trading systems and FIX connectivity to support front-office applications, system enhancements, and trading platform integrations. Improve workflows to enhance efficiency, scalability, and automation (TOIL reduction).
FIX Java Developer Expert In Recruitment SolutionsFIX Java DeveloperJersey City, NJOur client is seeking a FIX Java Developer with strong experience in Equities trading systems and FIX connectivity to support front-office applications, system enhancements, and trading platform integrations. Improve workflows to enhance efficiency, scalability, and automation (TOIL reduction) .
NewFidessa developer Expert In Recruitment SolutionsFidessa developerSummit, NJA successful candidate must have prior hands-on Fidessa implementation experience, in-depth knowledge of the Fidessa architecture, frameworks, and products, and proven track record performing product upgrades with complex onsite customizations. The group supports institutional and retail equities trading desks and is responsible for developing, enhancing, and supporting multiple production trading applications built on the Fidessa trading platform.
Java/Spark Developer SGA Inc.Java/Spark DeveloperJersey City, NJRequiredSkills:10+ years of professional experience, with prior roles in the Capital Markets and Risk domains demonstrating deep expertise in risk aggregations and analytics while working directly with senior Markets and Risk quants. Software Guidance & Assistance, Inc., (SGA), is searching for a Market Risk Developer for a right to hire assignment with one of our premier financial services clients in Jersey City, NJ.
PTC Windchill Developer Bright Vision TechnologiesPTC Windchill DeveloperSecaucus, NJRemote$100,000–$150,000 / yearIn this role you will work closely with cross-functional partners — product, design, engineering, operations, and business stakeholders — to translate ambiguous requirements into well-engineered solutions, and will be expected to raise the bar through code review, design review, and mentorship of more junior engineers. Job Title: PTC Windchill Developer Location: 100% Remote (U.S.) Position Type: Full-time, Direct W2 Salary Range: $100,000–$150,000 Annually Experience Required: 6+ years Sponsorship: U.S. Citizens, Green Card Holders, EAD Holders, and H-1B transfer candidates are encouraged to apply.
Dynamics Tech Lead/Sr Developer Expert In Recruitment SolutionsDynamics Tech Lead/Sr DeveloperNew York, NYOur client is seeking an experienced Dynamics Tech Lead/Sr Developer to design, develop, and deploy enterprise-scale Dynamics 365 and Power Platform solutions, leading technical initiatives and driving innovation through AI and Copilot capabilities. Design, develop, and configure Dynamics 365 CE and Power Platform solutions using Agile methodologies; implement plugins, workflows, and business process flows.
Content Developer IPolarityContent DeveloperWhippany, New JerseyTitle: Content Developer- CA / TX Location: Sunnyvale, CA OR Austin, TX( 3 days work from office) Rate: $50/hr W2 Experience- 8+ Years Job Summary: We are looking for a Detail-oriented Content Developer to handle data within CMS and catalog management tools. IPolarity LLC integrates expert industry knowledge, process and technology frameworks, strong partnerships, and a reliable work force to provide strategic solutions that generate sustainable results.
Looker BI Developer Publicis Groupe SALooker BI DeveloperNY$73,150–$112,554 / yearCompany description A division of Publicis Groupe, Publicis Digital Experience is a network of top-tier agencies designed to develop capabilities and solutions to enable growth and provide scaled access to the digital capabilities of Publicis Groupe in service of our clients. Technical Skills (must-have) Expert-level proficiency in Looker and LookML: Deep understanding of LookML concepts, Views, Models, Explores, Refinements, Liquid Templating, Caching Policies, Persistent Derived Tables (PDTs), Data Groups, and performance tuning strategies within Looker.
AML Surveillance Tools Engineer/Developer The Toronto-Dominion BankAML Surveillance Tools Engineer/DeveloperNY$105,000–$155,000 / yearTotal Rewards at TD includes base salary and variable compensation/incentive awards (e.g., eligibility for cash and/or equity incentive awards, generally through participation in an incentive plan) and several other key plans such as health and well-being benefits, savings and retirement programs, paid time off (including Vacation PTO, Flex PTO, and Holiday PTO), banking benefits and discounts, career development, and reward and recognition. Our services include underwriting and distributing new issues, providing trusted advice and industry-leading insight, extending access to global markets, and delivering integrated transaction banking solutions.
Workfront Fusion developer Capgemini SEWorkfront Fusion developerNY$67,733–$108,811 / yearIt delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data, combined with its deep industry expertise and partner ecosystem. Important Notice: Compensation (including bonuses, commissions, or other forms of incentive pay) is not considered earned, vested, or payable until it becomes due under the terms of applicable plans or agreements and is subject to Capgemini's discretion, consistent with applicable laws.
Quant Python Developer Rose InternationalQuant Python DeveloperJersey City, New Jersey$84–$90 / hourTemporaryRequired Qualifications/Skills/Experience •10+ years of professional experience designing, building, and operating massive-scale compute grid applications.•Expert-level hands-on experience with at least one major public cloud provider (AWS or GCP), including batch processing, container, and serverless services.•Deep expertise in containerization and orchestration technologies, including Docker and Kubernetes.•Strong programming skills in C++ and Python.•Strong background in distributed systems, performance tuning, and Infrastructure-as-Code (IaC) principles.•Exceptional problem-solving skills with the ability to diagnose and resolve complex issues in high-pressure, large-scale environments.•Excellent communication skills with the ability to collaborate effectively with quantitative research, trading, and risk management teams. Preferred Qualifications/Skills/Experience •Prior experience in a similar role within the financial industry.•Experience supporting large-scale Monte Carlo simulations, VaR calculations, or XVA pricing grids.•Join a team responsible for building and operating one of the largest high-performance computing (HPC) pricing grids in the financial industry.
Senior Developer (Python) Axelon Services CorporationSenior Developer (Python)Iselin, NJ$76.75 / hourWe are seeking an experienced Senior Developer with expertise in Python, ETL and AWS to architect, develop, and optimize scalable applications. Deploy and manage cloud solutions on AWS (Lambda, EC2, RDS, API Gateway, S3, CloudFront, Airflow).
SAP BTP & ABAP Developer Mitchell MartinSAP BTP & ABAP DeveloperNew York, NY$170,000–$190,000 / yearBy applying for this job, you agree to receive AI-generated calls, text messages, and/or emails from Mitchell Martin Inc and its affiliates and contracted partners at various frequency through traditional and automated methods. You will work with cross-functional teams to deliver solutions and optimize existing applications, utilizing modern programming models and technologies.
Senior Java Trading Systems Developer (400k total comp) Phaxis LLCSenior Java Trading Systems Developer (400k total comp)New York, NY$200,000–$225,000 / yearSalary is 200k to 250k + bonus (total comp to 400k) We are seeking a Senior Java Trading Systems Developer with strong experience in real-time pricing and electronic trading platforms within capital markets environments. The ideal candidate will have expertise building low-latency trading applications for equities, FX, fixed income, or derivatives products.
Principal Full-Stack Developer, New York ION GroupPrincipal Full-Stack Developer, New YorkNew York, NY$180,000–$230,000 / yearSince then, we have worked on successive waves of technological change, including distributed computing, high-speed automation, enterprise UX and digital distribution (for which Lab49 was among the first significant practices established on Wall Street), DevOps, cloud and data science. Today, we are an established partner in financial markets, having delivered hundreds of projects for clients including all the world's tier-one investment banks and many of the largest buy-side firms globally.
AI & Automation Developer - 1975 BhiredAI & Automation Developer - 1975Brooklyn, New YorkThis role focuses on designing end-to-end automation systems that intelligently capture, analyze, and process customer application data—dramatically improving speed, accuracy, and efficiency across underwriting operations. A fast-paced MCA company is seeking an innovative and highly technical AI & Automation Developer to build tools that streamline and modernize the underwriting process.
NewOnly W2 || Python Developer/ Python Data Engineer| Noblesoft TechnologiesOnly W2 || Python Developer/ Python Data Engineer|Rahway, NJAWS Cloud Depth: Hands-on experience with core AWS services: EC2, S3, Lambda, and RDS, including IAM and secure VPC networking. Architecture & Design: Proven track record of architecting distributed data processing systems, schema design, and microservices.
Quantitative Developer (USA) Trexquant Investment LPQuantitative Developer (USA)CTWorking closely with quantitative researchers, traders, and technology teams, you will own core analytics and market data infrastructure, productionize research models, and develop the backtesting, risk, and tooling capabilities that support the full investment lifecycle. This role will be instrumental in building and scaling the analytics platform that underpins research, portfolio construction, risk management, and trading across multiple asset classes, including equities, futures, options, ETFs, and other listed and derivative instruments.
Crypto Quantitative Developer Citadel Securities, LLCCrypto Quantitative DeveloperNew York, NY$175,000–$350,000 / yearResponsibilities: • Design, develop, and maintain low-latency, high-performance C++ trading systems for crypto markets • Partner closely with quantitative researchers and traders to translate trading ideas into production code • Optimize system performance across latency, throughput, and reliability, including exchange connectivity and market data handling • Build and enhance pricing, risk, and execution logic for crypto products • Analyze and improve system behavior using large-scale market and trade data • Ensure systems are resilient, well-tested, and scalable across global crypto venues. Our teams of engineers, traders and researchers harness leading-edge quantitative research and the accelerating power of compute, machine learning and AI to power our analytics and tackle the market's and our clients' most critical challenges.
Full Stack Developer Mitchell MartinFull Stack DeveloperNew york, NY$130,000–$200,000 / yearBy applying for this job, you agree to receive AI-generated calls, text messages, and/or emails from Mitchell Martin Inc and its affiliates and contracted partners at various frequency through traditional and automated methods. You'll collaborate with cross-functional teams and be responsible for designing, building, and maintaining systems using a variety of technologies.