176 to 200 of 321 Permanent Principal Software Engineer Jobs

Job Title: Principal Software Engineer Location: San Francisco Bay Area Job Type: Open to remote for highly experienced candidates (6+ years minimum) Summary: My client is a biotech startup leveraging AI/ML technologies to develop precision cancer therapeutics. We are seeking a seasoned and talented engineer … overall solution. Work independently and demonstrate a proactive problem-solving mindset, taking initiative and owning your work. Must Have: 5+ years of experience in software engineering (or 3-4 years with strong qualifications). Strong experience with AWS (SageMaker experience is a plus). Proficiency in Python . Experience … managing large-scale data pipelines in the cloud (AWS). Strong experience in data ingestion and processing . Experience designing and building production-grade software . Ability to work across multiple teams in a highly collaborative environment, with excellent communication and interpersonal skills. A problem-solving mindset and ability More ❯

Job Title: Principal Software Engineer Location: San Francisco Bay Area Job Type: Open to remote for highly experienced candidates (6+ years minimum) Summary: My client is a biotech startup leveraging AI/ML technologies to develop precision cancer therapeutics. We are seeking a seasoned and talented engineer … overall solution. Work independently and demonstrate a proactive problem-solving mindset, taking initiative and owning your work. Must Have: 5+ years of experience in software engineering (or 3-4 years with strong qualifications). Strong experience with AWS (SageMaker experience is a plus). Proficiency in Python . Experience … managing large-scale data pipelines in the cloud (AWS). Strong experience in data ingestion and processing . Experience designing and building production-grade software . Ability to work across multiple teams in a highly collaborative environment, with excellent communication and interpersonal skills. A problem-solving mindset and ability More ❯

Job Title: Principal Software Engineer Location: San Francisco Bay Area Job Type: Open to remote for highly experienced candidates (6+ years minimum) Summary: My client is a biotech startup leveraging AI/ML technologies to develop precision cancer therapeutics. We are seeking a seasoned and talented engineer … overall solution. Work independently and demonstrate a proactive problem-solving mindset, taking initiative and owning your work. Must Have: 5+ years of experience in software engineering (or 3-4 years with strong qualifications). Strong experience with AWS (SageMaker experience is a plus). Proficiency in Python . Experience … managing large-scale data pipelines in the cloud (AWS). Strong experience in data ingestion and processing . Experience designing and building production-grade software . Ability to work across multiple teams in a highly collaborative environment, with excellent communication and interpersonal skills. A problem-solving mindset and ability More ❯

Job Title: Principal Software Engineer Location: San Francisco Bay Area Job Type: Open to remote for highly experienced candidates (6+ years minimum) Summary: My client is a biotech startup leveraging AI/ML technologies to develop precision cancer therapeutics. We are seeking a seasoned and talented engineer … overall solution. Work independently and demonstrate a proactive problem-solving mindset, taking initiative and owning your work. Must Have: 5+ years of experience in software engineering (or 3-4 years with strong qualifications). Strong experience with AWS (SageMaker experience is a plus). Proficiency in Python . Experience … managing large-scale data pipelines in the cloud (AWS). Strong experience in data ingestion and processing . Experience designing and building production-grade software . Ability to work across multiple teams in a highly collaborative environment, with excellent communication and interpersonal skills. A problem-solving mindset and ability More ❯

Job Title: Principal Software Engineer Location: San Francisco Bay Area Job Type: Open to remote for highly experienced candidates (6+ years minimum) Summary: My client is a biotech startup leveraging AI/ML technologies to develop precision cancer therapeutics. We are seeking a seasoned and talented engineer … overall solution. Work independently and demonstrate a proactive problem-solving mindset, taking initiative and owning your work. Must Have: 5+ years of experience in software engineering (or 3-4 years with strong qualifications). Strong experience with AWS (SageMaker experience is a plus). Proficiency in Python . Experience … managing large-scale data pipelines in the cloud (AWS). Strong experience in data ingestion and processing . Experience designing and building production-grade software . Ability to work across multiple teams in a highly collaborative environment, with excellent communication and interpersonal skills. A problem-solving mindset and ability More ❯

Job Title: Principal Software Engineer Location: San Francisco Bay Area Job Type: Open to remote for highly experienced candidates (6+ years minimum) Summary: My client is a biotech startup leveraging AI/ML technologies to develop precision cancer therapeutics. We are seeking a seasoned and talented engineer … overall solution. Work independently and demonstrate a proactive problem-solving mindset, taking initiative and owning your work. Must Have: 5+ years of experience in software engineering (or 3-4 years with strong qualifications). Strong experience with AWS (SageMaker experience is a plus). Proficiency in Python . Experience … managing large-scale data pipelines in the cloud (AWS). Strong experience in data ingestion and processing . Experience designing and building production-grade software . Ability to work across multiple teams in a highly collaborative environment, with excellent communication and interpersonal skills. A problem-solving mindset and ability More ❯

Job Title: Principal Software Engineer Location: San Francisco Bay Area Job Type: Open to remote for highly experienced candidates (6+ years minimum) Summary: My client is a biotech startup leveraging AI/ML technologies to develop precision cancer therapeutics. We are seeking a seasoned and talented engineer … overall solution. Work independently and demonstrate a proactive problem-solving mindset, taking initiative and owning your work. Must Have: 5+ years of experience in software engineering (or 3-4 years with strong qualifications). Strong experience with AWS (SageMaker experience is a plus). Proficiency in Python . Experience … managing large-scale data pipelines in the cloud (AWS). Strong experience in data ingestion and processing . Experience designing and building production-grade software . Ability to work across multiple teams in a highly collaborative environment, with excellent communication and interpersonal skills. A problem-solving mindset and ability More ❯

C# Software Engineer (Senior/Principal) Apply Locations: GB - Basildon Time Type: Full time Posted on: Posted Yesterday Job Requisition ID: R Job Description: The Opportunity Are you a Software Engineer with C# experience looking for your next challenge? Here at Leonardo, we are on … the hunt for talented software engineers to support our Integrated Sensors & Protection line of business, working on a range of defence projects. Direct industry experience is not required; we are happy to explore all backgrounds and help develop all our software engineers. What you will do: You will … be a key part in a community of world-class software engineers who will continuously improve, collaborate and innovate with other engineers to create market-leading products within the defence industry. What we are looking for: Essential: C# software development Machine-to-machine networking, working to third-party More ❯

smart, intuitive app that removes the stress from travel and enhances every step of the journey. To support this mission, theyre looking for a Principal Software Engineer who can lead from the front, shape architectural decisions, and mentor across teams. This is a high-impact, high-autonomy … looking for someone who brings deep technical insight, but also pragmatism someone who builds for impact, not complexity. What youll bring: Experience operating at Principal or Staff Engineer level within modern product-led teams Expertise in scalable systems design and cloud architecture (ideally AWS) A track record of More ❯

Job Description: C# Software Engineer (Senior/Principal) The Opportunity Are you a Software Engineer with C# experience looking for your next challenge? Here at Leonardo, we are on the hunt for talented software engineers to support our Integrated Sensors & Protection line of business … working on a range of defence projects. Direct industry experience is not required; we are happy to explore all backgrounds and help develop our software engineers. What you will do: We want to develop a new generation of features and capabilities using innovative software solutions. You will be … a key part of a community of world-class software engineers who will continuously improve, collaborate, and innovate to create market-leading products within the defence industry. What we are looking for: Essential C# software development Machine-to-machine networking, working to third-party interface definitions Test frameworks More ❯

Principal Engineer - Healthtech Scaleup What if your next role wasn’t just about code but about legacy? You’ve probably been the go-to person for solving technical chaos more than once. You’ve steadied shaky architectures. Made sense of complex systems. Calmed down product teams with confident … seat at the table , working alongside engineering and product leaders ✅ Guide multiple squads through architectural decisions and technical challenges ✅ Leave your mark on how software is built — and on who builds it The mission? To make healthcare simpler and more accessible through beautifully designed SaaS products. You’ll help … Design systems with scale, reliability, and security in mind Champion engineering excellence - from architecture to AI experimentation Who you are: You’re already a Principal, Staff, or Lead Engineer working on complex SaaS platforms. You don’t just understand architecture — you roll up your sleeves and build . More ❯

Principal Engineer - Healthtech Scaleup What if your next role wasn’t just about code but about legacy? You’ve probably been the go-to person for solving technical chaos more than once. You’ve steadied shaky architectures. Made sense of complex systems. Calmed down product teams with confident … seat at the table , working alongside engineering and product leaders ✅ Guide multiple squads through architectural decisions and technical challenges ✅ Leave your mark on how software is built — and on who builds it The mission? To make healthcare simpler and more accessible through beautifully designed SaaS products. You’ll help … Design systems with scale, reliability, and security in mind Champion engineering excellence - from architecture to AI experimentation Who you are: You’re already a Principal, Staff, or Lead Engineer working on complex SaaS platforms. You don’t just understand architecture — you roll up your sleeves and build . More ❯

Wayfair, and many more. Collectively, they have awarded us an industry-leading 4.7 G2 rating. To learn more, visit . We are hiring a Principal Software Engineer to help us deliver solutions that harness data & the latest AI advancements to generate measurable business impacts, ensuring our leadership … in quality software testing services. To accomplish this, we seek a distinguished engineer who can showcase their significant experience in enterprise architecture & full-stack solution engineering. If you can confidently tick one or more of these boxes, we'd love to hear from you: I hold a Solutions … for impact. Provide quality control for Architectural Decision documents. Build and implement performant, scalable, and quality products in an iterative approach. Advance AI-augmented software engineering practices by incorporating productivity-boosting GenAI automation across the software development lifecycle. Define & advocate quality standards for code, coaching your fellow engineers More ❯

Social network you want to login/join with: Lead Principal Software Engineer, slough col-narrow-left Client: Harrington Starr Location: slough, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 10.06.2025 Expiry Date: 25.07.2025 col-wide Job Description … Principal Front Office Developer - Trade Capture, Pricing, Risk, and STP You will be: Accountable for the successful software delivery from inception to deployment for the complete Front Office Derivatives Technology Stack Deliver key strategic business goals by identifying systems changes that support revenue generation and regulatory reporting for … and ensure that the Front Office desks are fully supported with a global system architecture. Responsibilities: Design, develop, and maintain high-quality Java-based software components for trade capture, pricing, risk calculation, payments, settlements, and regulatory reporting Develop scalable and accurate solutions to meet the evolving needs of our More ❯

community. Our Mission, Vision, and Values guide the way we do business. Your greatest work is ahead! Leidos Defense Systems is seeking a talented Principal Software Engineer to join a diverse team to create unique solutions for complex sensor and radar orientated problems. We have offices across … you ready to make an impact? Share your resume with us today! Primary Responsibilities Candidate will support advanced technology radar programs including development of software for high-speed data acquisition, distribution, and real-time processing; integration of COTS and custom technologies into sensor systems; field testing of RF sensors … and systems; and deployment of advanced sensor systems. In this role you will mentor other software engineers in embedded Linux C++ development, plan or evaluate software architecture updates, develop continuous integration pipelines and maintain secure development operations. Basic Qualifications Must possess a bachelor's degree in Computer Science More ❯

lives of our patients and customers. We foster an inclusive culture and are looking for diverse, talented people to join Alcon. As a Sr Principal Software Engineer supporting Digital Engineering Team , you will be trusted to lead our team of developers in the design, development, and maintenance … of software applications. The ideal candidate will have a strong technical background in multiple programming languages, web development frameworks, databases, and cloud platforms at Fort Worth, TX . In this role, a typical day will include: Technical Leadership: Collaborate with the Product team and Solution Architects to release new … features. Provide technical guidance and mentorship to engineers, fostering a collaborative and innovative work culture. Lead the development team in designing, developing, and maintaining software applications. Participate in design and sprint reviews to remove technical barriers, shape our products' direction, and improve patient outcomes. Stay updated with the latest More ❯

Come join the Intuit as a Principal Software Engineer and help us power prosperity around the world. We are looking for engineers that love to take on new challenges, solve tough problems, and have deep empathy for our customers. You’ll work with a small group of … and partners with cross-functional partners to influence and drive end-to-end solutions for customer problems . Drives design and implementation of durable software solutions that will solve critical customer problems in a fast-paced environment . Executes with a boundaryless mindset and contributes to solutions outside of … term and long-term objectives, ensuring high availability and optimal performance of applications. Passionate for continuous learning, experimenting, and applying cutting-edge technology and software paradigms to solve customer problems. Team/Collaboration Partners with other groups both inside and outside of Intuit for cross-functional design, development, and More ❯

have built and scaled the world's first 3D AI analytics & insights platform for the largest industry on earth, construction . Our cutting-edge software automates quality verification, manufacturing-style quantity tracking, progress, and predictive risks in hours, generating an intelligent digital twin previously missing from construction. This enables … of the world's CO2 originates from the $15Tn Construction industry! To fulfill this vision, we are adding a smart, ambitious, and technically exceptional Principal Software Engineer to our team. In this role, you will lead software development and cloud deployment activities to build the next … footprint. Preference for candidates with UK work authorization , though we are able to sponsor exceptional candidates. What you will be doing: Lead and implement software development projects, including: System architecture design Implement and test backend, analytics engine, database, and integrations Cloud deployment and performance optimization Establish, implement, and track More ❯

We're looking for an experienced Principal Software Engineer to lead and manage a team of engineers, overseeing the design, development, and implementation of complex engineering projects. You will be supported by an experienced Head of Product as well as a Director of Engineering to ensure we … are building the right experiences to delight our customers with the right tech choices. You will be responsible for overseeing the entire software development lifecycle, from project initiation to delivery, and ensuring that our software solutions are robust, scalable, and meet the highest quality standards. We have big … support to a team of developers. Set coding standards and best practices, and ensure adherence to them. Project Management: Lead and manage the full software development lifecycle, including project planning, task assignment, and coordination among team members. Coding and Development: Write clean, efficient, and well-documented code. Participate in More ❯

Equity options: 0.30% - 0.5% Hybrid working policy: Minimum three days a week in our Holborn office Experience level: At least seven years in commercial software engineering If you're looking to join an exceptional, fast-paced, and growing team building innovative products in FinTech, check out the full job … product that may not be suitable for every investor. The role As we approach the launch of our product, we are looking for a Principal Software Engineer to strengthen our engineering team. You will have extensive commercial experience designing, building and maintaining systems used in critical services … Ensure best practice through example and continual team feedback Root causing real-time production issues in a timely manner Taking a pragmatic approach to software development Your background Extensive experience in software engineering, with a focus on designing, building, and maintaining large-scale systems Proven track record of More ❯

Principal Software Engineer SME Job Descriptions: The USCC J9 DCO effort key activities will modernize the DCO mission space to Defend the Nation against malicious cyber actors. The DCO effort will span multiple disciplines (e.g. Data Science, Systems Engineering, Analytics, Development) with a focus on building capabilities More ❯

product that may not be suitable for every investor. The role As we approach the launch of our product, we are looking for a Principal Software Engineer to strengthen our engineering team. You will have extensive commercial experience designing, building and maintaining systems used in critical services … Ensure best practice through example and continual team feedback Root causing real-time production issues in a timely manner Taking a pragmatic approach to software development Your background Extensive experience in software engineering, with a focus on designing, building, and maintaining large-scale systems Proven track record of More ❯

NextGen Federal Systems is seeking a Principal Software Engineer with experience supporting Defense (DoD) and Intelligence Community (IC) C4ISR programs delivering capabilities to the warfighter. Selected candidates will support the design, development, integration, and maintenance of cloud native data services for the National Geospatial-Intelligence Agency (NGA … work location will be hybrid-remote with a combination of remote and part-time on-site support at NGA Campus East (NCE). NextGen software engineers will be developing and modernizing NGA systems using industry best practices, standards and agile development processes; utilizing open source software solutions, cutting … geospatial databases and/or geospatial (GIS) technologies About NextGen: NextGen Federal Systems is an innovative technology and professional services provider specializing in advanced software solutions and comprehensive mission and business support services. We work in close collaboration with our customers to truly understand their business and mission goals. More ❯

you do – do what you love. Become part of Tradebyte, an independent company within the Zalando Group! THE ROLE AND THE TEAM As a Principal Software Engineer, you will drive the technical strategy and execution of scalable, reliable, and maintainable software systems in our Marketplace area … culture of innovation. WHAT WE’D LOVE YOU TO DO (AND LOVE DOING) Excellent engineering skills and fundamental knowledge of engineering principles across the software development life cycle. Display ownership for our services from problem formulation, inception to solution design, as well as delivery and operations. Drive the transition … and drive solutions that simplify the technical architecture of individual services or pay down technical debt. Extensive experience as a Senior Systems or Senior Software Engineer. Production-grade knowledge in Python and also some PHP, coupled with excellent general software engineering skills. You are familiar with a diverse More ❯

Job Description: Are you a Real Time Embedded Software Engineer ready to take the next step in your career? If you are looking for opportunities for progression, to learn and grow within a supportive environment, Leonardo has multiple roles available. Do you want to deliver solutions within multidisciplinary … value job security and flexible working with great benefits and an emphasis on work-life balance? Then you should apply for one of our PRINCIPAL SOFTWARE ENGINEER roles, as we are looking for engineers to join our team working on a variety of exciting projects. Below is … code (e.g., RTCA-DO178C) using object-oriented C++ Hands-on integration working within a lab environment on target hardware Implementation of real-time embedded software applications built upon Linux or VXWorks RTOS (Desirable) An understanding of the Software Engineering lifecycle from requirements elicitation to delivery and release The More ❯