The application window is expected to close on 12/31/25 Job posting may be removed earlier if the position is filled or if a sufficient number of applications are received. This role can be performed from any location within the United States. Meet the Team Join our team at Acacia, where we design advanced optical transceivers for high-speed fiber optic transmission in data centers and telecommunication networks. We're seeking enthusiastic, experienced individuals to work on the forefront of fiber optic technology. You'll be part of the team developing Digital Signal Processing (DSP) and Forward Error Correction (FEC) algorithms for our optical transceivers' Application-Specific Integrated Circuits (ASICs). Collaboration with colleagues from the DSP and ASIC teams is key to optimizing performance and power efficiency. You'll contribute to system design, develop architectures, and support ASIC design and verification. Work closely with colleagues across various fields and gain diverse knowledge in optical system testing, analog components, modeling, and more. Your Impact With your expertise in DSP for coherent optical transceivers, FEC, and modeling, you help the team to develop the next generation of low-power and high-performance coherent transceivers. Here are some examples of possible topics: * Invent, simulate and validate new DSP or FEC algorithms (both in floating-point and fixed-point precision) to improve performance and functionality or lower power consumption * Test and optimize these algorithms on actual hardware and correlate performance with previous simulations * Develop models of analog RF and optical components and evaluate system performance with these models * Analyze performance of developed transceiver modules and update models and simulation environments to accurately match the measured results Minimum Qualifications: Typically: Bachelors + 15 years of related experience, or Masters + 12 years of related experience, or PhD + 8 years of related experience * + 10 years of industry experience in related fields. * Experience with Digital Signal Processing (DSP) and/or Forward Error Correction (FEC) for coherent optical communications. * Experience in modeling communication systems. * Programming experience in C/C++, Python, Matlab, or similar languages. * A master's or Ph.D. degree in mathematics, physics, or electrical engineering is highly recommended, although not strictly required. Preferred Qualifications: A master's or Ph.D. degree in mathematics, physics, or electrical engineering is highly recommended, although not strictly required. * Experience with C++, Linux, and version control systems, specifically SVN and Perforce. * Experience with Verilog or VHDL, and/or collaboration with ASIC designers. * Experience presenting technical information to colleagues. Why Cisco? At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint. Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere. We are Cisco, and our power starts with you. Message to applicants applying to work in the U.S. and/or Canada: The starting salary range posted for this position is $225,000.00 to $325,300.00 and reflects the projected salary range for new hires in this position in U.S. and/or Canada locations, not including incentive compensation*, equity, or benefits. Individual pay is determined by the candidate's hiring location, market conditions, job-related skillset, experience, qualifications, education, certifications, and/or training. The full salary range for certain locations is listed below. For locations not listed below, the recruiter can share more details about compensation for the role in your location during the hiring process. U.S. employees are offered benefits, subject to Cisco’s plan eligibility rules, which include medical, dental and vision insurance, a 401(k) plan with a Cisco matching contribution, paid parental leave, short and long-term disability coverage, and basic life insurance. Please see the Cisco careers site to discover more benefits and perks. Employees may be eligible to receive grants of Cisco restricted stock units, which vest following continued employment with Cisco for defined periods of time. U.S. employees are eligible for paid time away as described below, subject to Cisco’s policies: - 10 paid holidays per full calendar year, plus 1 floating holiday for non-exempt employees - 1 paid day off for employee’s birthday, paid year-end holiday shutdown, and 4 paid days off for personal wellness determined by Cisco - Non-exempt employees** receive 16 days of paid vacation time per full calendar year, accrued at rate of 4.92 hours per pay period for full-time employees - Exempt employees participate in Cisco’s flexible vacation time off program, which has no defined limit on how much vacation time eligible employees may use (subject to availability and some business limitations) - 80 hours of sick time off provided on hire date and each January 1st thereafter, and up to 80 hours of unused sick time carried forward from one calendar year to the next - Additional paid time away may be requested to deal with critical or emergency issues for family members - Optional 10 paid days per full calendar year to volunteer For non-sales roles, employees are also eligible to earn annual bonuses subject to Cisco’s policies. Employees on sales plans earn performance-based incentive pay on top of their base salary, which is split between quota and non-quota components, subject to the applicable Cisco plan. For quota-based incentive pay, Cisco typically pays as follows: - .75% of incentive target for each 1% of revenue attainment up to 50% of quota; - 1.5% of incentive target for each 1% of attainment between 50% and 75%; - 1% of incentive target for each 1% of attainment between 75% and 100%; and - Once performance exceeds 100% attainment, incentive rates are at or above 1% for each 1% of attainment with no cap on incentive compensation. For non-quota-based sales performance elements such as strategic sales objectives, Cisco may pay 0% up to 125% of target. Cisco sales plans do not have a minimum threshold of performance for sales incentive compensation to be paid. The applicable full salary ranges for this position, by specific state, are listed below: New York City Metro Area: $225,000.00 - $374,100.00 Non-Metro New York state & Washington state: $208,600.00 - $330,000.00 * For quota-based sales roles on Cisco’s sales plan, the ranges provided in this posting include base pay and sales target incentive compensation combined. ** Employees in Illinois, whether exempt or non-exempt, will participate in a unique time off program to meet local requirements.

Role Description Seeking an engineer with experience in package layout and electrical analysis, focusing on power distribution and high-frequency signal integrity. - Develop and optimize package layouts - Perform PDN and signal integrity analysis - Run simulations and improve design performance - Collaborate with cross-functional engineering teams Qualifications - Degree in Electrical Engineering or related field - 10+ years of experience in package design and electrical analysis - Strong knowledge of power integrity and high-speed signal integrity - Hands-on experience with tools like Cadence APD, Cadence Clarity, Ansys HFSS, or similar (Siemens, Altium, etc.) - Experience with advanced packaging (2.5D/3D, flip-chip) Requirements - Work Status: US Citizen or Lawful Permanent Resident Benefits - 15 days of PTO per calendar year - 10 paid Holidays per calendar year - Comprehensive Medical Benefits: Company covers 80% of premiums for Employee and Dependents - Dental & Vision: Company covers 50% of premiums for Employee and Dependents - Voluntary Benefits: Life Insurance, FSA (Health and Dependent, Limited Purpose), HAS, and Gap Insurance - Employee Assistant Program (EAP) - 401k - Traditional & Roth - Life/AD&D and Long-Term Disability - Tuition reimbursement

What you will do Johnson Controls is hiring a Senior Variable Frequency Drive Engineer to provide technical support to the Field Sales & Service organizations for designated specialty focusing on troubleshooting escalated cases. This is a remote position for candidates based in the US. How you will do it - Serve as technical expert within Product Technical Support Department that is responsible to troubleshoot power electronics products and systems for Johnson Controls’ chiller applications. - Act as the technical lead for troubleshooting field and factory issues on the range of power electronics products and systems on Johnson Controls’ chillers. - Provide day-to-day technical support for Field Sales & Service organization on a global basis via site visit, phone, fax, or email. - Monitor PTS cases to support all Tier levels within PTS and proactively identify cases for escalation for VFD / power electronics products. - Accountable to create and maintain technical service bulletins, service letters, and updates to the Solutions Database that meets and or exceeds internal and external customer expectations. - Drive product reliability through the Continuous Improvement Process for both existing products and new products being introduced. SME provides technical support and interacts with quality management and engineering to improve overall life cycle cost. - Maintains effectiveness when experiencing major changes in work responsibilities or environment (e.g., people, processes, structure, or culture); adjusts effectively to change by exploring the benefits, tries new approaches, and collaborates with others to make the change successful. - Interacts with all Tier levels within PTS globally to solve work problems and seize opportunities that result in unique and differentiated solutions; promotes the involvement of co-workers in solving problems which directly impact what people do; leveraging technology to effectively address problems and capitalize on opportunities. - Places a high priority on the internal or external customer’s perspective when making decisions and acting; implementing service practices that meet the customers’ and own organization’s needs. - Ensures others contribute to organization strategies and driving operational discipline, role clarity and performance transparency by focusing them on the most critical priorities, measures progress, and ensures accountability against those metrics to allow us to act like One Team; sets, documents, and communicates clear work standards to improve performance – “the fundamentals”; making our results widely available and easily accessible. - Identifies and understands problems and opportunities by gathering, analyzing, and interpreting quantitative and qualitative information; chooses the best course of action by establishing clear decision criteria, generates and evaluates alternatives, and making timely decisions; taking action that is consistent with available facts and constraints and optimizes probable consequences. What we look for Required - Able to travel up to 15% - Bachelor’s degree in Engineering - 5+ years of experience troubleshooting and/or designing VFD's/VSD's. - Experience with low voltage, or medium voltage. - Able to analyze and solve complex product system problems. - Chiller industry knowledge/experience and subject matter expert with VFD's and/or VSD's. - Must be proficient in troubleshooting the refrigeration cycle as applied to air-conditioning duty on Applied Equipment. HIRING SALARY RANGE: $100,000 - 150,000 (Salary to be determined by the education, experience, knowledge, skills, and abilities of the applicant, internal equity, and alignment with market data.) This position includes a competitive benefits package. The posted salary range reflects the target compensation for this role. However, we recognize that exceptional candidates may bring unique skills and experiences that exceed the typical profile. If you believe your background warrants consideration beyond the stated range, we encourage you to apply. To support an efficient and fair hiring process, we may use technology assisted tools, including artificial intelligence (AI), to help identify and evaluate candidates. All hiring decisions are ultimately made by human reviewers. For details, please visit the About Us tab on the Johnson Controls Careers site at https://jobs.johnsoncontrols.com/about-us Â

• Define the technical roadmap for server hardware platforms and advanced package technologies (e.g., 2.5D/3D IC, chiplets, system-in-package). • Oversee end-to-end system design, including high-speed board-level hardware, ASIC packaging, SI/PI simulations, and PCB layout. • Lead and mentor a multidisciplinary team of electrical, mechanical, and package engineers. • Partner with silicon design, firmware, software, and manufacturing teams to ensure integration and manufacturability (DFM/DFT). • Interface with OSAT and ODM partners to drive packaging technologies, prototype builds, and manufacturing quality. • Guide system bring-up, validation, and debug, including thermal and power management. • Own the full hardware lifecycle from concept through volume production, including schedules and budgets.