Job Description We're looking for driven innovators and optimizers who are excited about cutting-edge technology and making a measurable impact. If you're passionate, obsessed with performance, and excited to work where nanoseconds matter, read on. What You'll Do - Solve What Matters: Break down intricate challenges and deliver clear, elegant solutions that drive real world outcomes - Build and Scale: Design, build and maintain high performance systems that are the backbone of our trading infrastructure - Optimize Everything: Continuously push the limits of latency, reliability, and throughput in a distributed environment - Partner and Deliver: Collaborate directly with traders, researchers, and fellow engineers to deliver ideas into production - Own it in production: Take pride in running your code live - Monitoring, supporting and improving it every day What we are looking for - Deep experience in C++ with a passion for clean, performant code - A strong grasp of multithreading, concurrency, and distributed systems - Curiosity to explore how things work and a drive to improve them - Clear, thoughtful communication and the ability to thrive in a high ownership environment - Bachelor's (or higher) degree in a Computer Science, Engineering or related field - Background in Trading or finance is a plus but not a requirement Opportunities may be available from time to time in any location in which the business is based for suitable candidates. If you are interested in a career with Citadel Securities, please share your details and we will contact you if there is a vacancy available. About Citadel Securities Citadel Securities is a technology-driven, next-generation global market maker. We provide institutional and retail investors with world-class liquidity, competitive pricing and seamless front-to-back execution in a broad array of financial products. 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. Together, we are forging the future of capital markets. For more information, visit citadelsecurities.com .

Job Description Job Description What's it like working for a company where you are treated as more than a number? Empowering. Joining our Enterprise Shared Services team means you are the backbone behind managing all the technology aspects for multiple contracts and programs that help keep nations safe. With the diversity of our offerings and work, you'll get to take on new challenges while your career reaches new heights. BAE Systems is looking for an experienced technical authority (TA) / systems engineering lead to support complex, enterprise system implementations in the value chain (e.g., Contract Lifecycle Management, Source to Pay). The role will report into our Enterprise Shared Services (ESS) IT Organization, with deep engagement with stakeholders across BAE Systems business sectors and major third party suppliers. The candidate will demonstrate proven execution of a technology project through excellent risk assessment, outstanding leadership, and strong decision making with solid analysis skills. The TA provides technical responsibility and leadership to cross-functional teams through the design, development, and support of the system. The TA represents the technical team to project managers, functions, and executive leadership, and provides responsibilities for developing the overall technical solution for a product or system. The TA is the decision authority between the Chief Digital Architect and IT technology team and is responsible for developing the overall technical solution for the system. The TA is expected to influence the design, development, test and verification. In addition, the TA is responsible for identifying and communicating technical risks and opportunities between the design team, the CDA and program management team, and our major suppliers. The TA will perform as the key accountable leader for the solution design, technical performance, and other solution needs, provide technical stewardship of the development effort for the entire program ensuring the solution meets programmatic and technical requirements within the allocated technical cost and schedule. Specific responsibilities include, but are not limited to - Partner with the Program Manager, Chief Digital Architect and functional staff to develop and deliver products that meet business needs. - Partner and collaborate across all the disciplines, functions, business areas, and major suppliers to effectively support IT across the enterprise. - Serve as overall technical point of contact for the project. - Identify and support the development of critical skills and resources. - Ensure requirements traceability, robust designs, test plans, data migration activities are formally addressed. - Facilitate and drive decisions, where needed, on complex technical and business process to enable enterprise solution delivery. - Develop and maintain measures related to technical performance. - Ensure proper application of process based on the size and complexity of the project. - Ensure execution of work goals, performance standards, budgets and staffing plans. - Improve processes and skills that support programs. - Support cost, schedule and technical performance for projects through their life cycle. Take action to ensure program remains on track. - Ensure preparation and approval of IT program proposals that are executable and in line with enterprise business requirements As a leader, the TA must work across organizational boundaries to solve problems and ensure successful delivery. Competencies - Strong leadership skills, along with exceptional soft and interpersonal skills, including teamwork, facilitation and negotiation. - Strong consulting skills, such as targeted communications, engagement management, stakeholder management and business development. - Ability to balance the long-term ("big picture") and short-term implications of individual decisions and organizational goals. - Innovative, consultative approach to driving digital business strategies and transformation. - Business acumen, with the ability to understand and communicate in the language of the business. - Trusted and respected as a thought leader who can influence and persuade business and IT leaders. - Collaborative and supportive, fostering alignment with business strategies and values. - Innovative, with strong foresight, systems thinking and design thinking capabilities. - Vendor- and technology-neutral, focused on achieving targeted business outcomes over personal preferences or those of other business and IT leaders. - Practical in approach to problem solving and decision making. Required Education, Experience, & Skills - Bachelor's degree and Minimum 12 years' work experience including technical leadership experience and capabilities relevant to the business - Ability to form a vision and implement action plans to achieve that vision - Proven ability to share and transfer technology across organizational boundaries to the benefit of our sponsors and the business Pay Information Full-Time Salary Range: $150370 - $255630 Please note: This range is based on our market pay structures. However, individual salaries are determined by a variety of factors including, but not limited to: business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience. Employee Benefits: At BAE Systems, we support our employees in all aspects of their life, including their health and financial well-being. Regular employees scheduled to work 20+ hours per week are offered: health, dental, and vision insurance; health savings accounts; a 401(k) savings plan; disability coverage; and life and accident insurance. We also have an employee assistance program, a legal plan, and other perks including discounts on things like home, auto, and pet insurance. Our leave programs include paid time off, paid holidays, as well as other types of leave, including paid parental, military, bereavement, and any applicable federal and state sick leave. Employees may participate in the company recognition program to receive monetary or non-monetary recognition awards. Other incentives may be available based on position level and/or job specifics. About BAE Systems, Inc. BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. Improving the future and protecting lives is an ambitious mission, but it's what we do at BAE Systems. Working here means using your passion and ingenuity where it counts - defending national security with breakthrough technology, superior products, and intelligence solutions. As you develop the latest technology and defend national security, you will continually hone your skills on a team-making a big impact on a global scale. At BAE Systems, you'll find a rewarding career that truly makes a difference. This position will be posted for at least 5 calendar days. The posting will remain active until the position is filled, or a qualified pool of candidates is identified.

Fullstack Java Developer Job Description: Job#: 3027874 Fullstack Java Developer Location: Jersey City, NJ, Boston, MA, or Tampa, FL (Hybrid onsite 3x a week) Employment Type: Contract Duration: 6-12 month contract potential to hire Rate: $60-70/hr. on w2 Authorization: Candidates must be able to work on w2 without requiring sponsorship now or in the future Role Overview We are seeking a senior-level Fullstack Java Developer to join a team focused on migrating applications from on-premises environments to AWS. This role involves new builds, implementations, and supporting a complex, 20-year-old legacy Java system. The ideal candidate will be a versatile, senior individual contributor who can quickly analyze and adapt to various technical challenges, from improving scripting processes to connecting with modern data and messaging platforms. Key Responsibilities - Analyze, design, develop, and enhance enterprise Java applications to deliver scalable solutions. - Perform in-depth analysis and reverse engineering of existing systems to identify defects, performance bottlenecks, and opportunities for modernization. - Contribute to the migration of applications from on-premises infrastructure to AWS, utilizing the Red Hat OpenShift container platform. - Provide production support and troubleshooting, performing root-cause analysis and ensuring timely resolution of issues. - Collaborate with engineers, architects, and operations teams, promoting established engineering standards and coding best practices. - Work within containerized environments (Docker, Kubernetes, OpenShift) to support application deployment and stability. - Participate in Agile ceremonies and deliver work independently to meet sprint commitments. Required Qualifications - 10+ years of hands-on software engineering experience designing and building large-scale, distributed enterprise systems using Java (including Java 17). - Extensive experience in the analysis, troubleshooting, and production support of legacy systems. - Strong expertise in client/server and object-oriented development utilizing Core Java, JSON, and related integration technologies. - Proficiency with relational database systems, including Oracle and PostgreSQL. - Experience with messaging technologies such as MQ and Kafka. - Proven experience with containerization and orchestration technologies, including Docker and Kubernetes (Red Hat OpenShift or similar). - Solid experience working with AWS cloud services for application deployment, configuration, and monitoring. - Expert-level proficiency in Linux/Unix environments, including shell scripting. - Experience with Maven-based builds and CI/CD pipelines for automated builds, testing, and deployments. Preferred Qualifications - Experience migrating applications and services from on-premises environments to the AWS cloud. - DevOps experience, including infrastructure-as-code and automation. - Experience in the financial services industry. This employer is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability. Apex uses a virtual recruiter as part of the application process. Click here for more details. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Benefits Department at [email protected]. Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click here for more details. Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, 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. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Apex team member can provide. Employee Type: Contract Location: Jersey City, NJ, US Pay Range: $70 - $72 per hour

• Own the technical direction for HubSpot’s public APIs • Design and ship new APIs while refactoring legacy APIs • Lead large, cross-cutting improvements prioritizing usability and reliability • Build and operate high-volume, scalable data APIs • Architect systems for synchronization of multiple distributed systems • Reduce technical complexity and modernize legacy patterns • Mentor engineers and influence cross-team technical decisions • Partner with Product and Engineering leadership to shape API strategy • Leverage AI-assisted development tools to enhance productivity