Lead Senior Software Engineer - API Team

Join our innovative team at Aurora Solar as a Senior Software Engineer. In this role, you will help drive our mission to revolutionize solar energy solutions on a global scale. Your expertise will contribute to developing cutting-edge software that empowers solar professionals and enhances efficiency in solar project management.As a key player in our engineering team, you will work collaboratively with cross-functional teams to design, implement, and optimize software solutions that meet the needs of our international clientele. Your contributions will directly impact the future of renewable energy technology.

Join our dynamic team at evooq as a Senior Software Engineer! In this role, you will leverage your extensive experience in software development to design, implement, and maintain high-quality software solutions that meet our client’s needs. You will collaborate closely with cross-functional teams, contributing to all stages of the development lifecycle. If you are passionate about technology and eager to make a significant impact, we want to hear from you!

Role overview SmartRecruiters is seeking a Senior Software Engineer with strong Python skills to join the team in Poland. This role focuses on building and enhancing scalable software that supports the company’s product suite. Senior engineers at SmartRecruiters play a key part in shaping technical decisions and work closely with colleagues from various teams. What you will do Design and implement software solutions using Python Work with product managers, designers, and engineers to deliver new features Promote development best practices and contribute to architectural choices Mentor junior engineers and help them grow technically Requirements Experience building scalable applications with Python Comfort working in a collaborative setting that can move quickly Interest in solving practical problems with technology Ability to share knowledge and support less experienced team members

As a Senior Software Engineer focusing on AI Retrieval at Asana, you will play a pivotal role in designing and implementing cutting-edge solutions that enhance our AI capabilities. You will collaborate with cross-functional teams to build scalable systems that improve information retrieval and user experience. Your expertise in software engineering and artificial intelligence will help drive innovation and set new standards for efficiency and performance.

About Aurora Solar Aurora Solar builds software that helps solar professionals design, sell, and install solar projects for both residential and commercial customers. Our platform supports millions of solar projects worldwide, providing tools and insights that make solar energy more accessible. Aurora Solar has received recognition as one of the "Best Remote Companies To Work for in 2025" by BuiltIn.com and is a Certified Green Business (CGB) by the city of San Francisco for the second year in a row. Team Overview The International team drives Aurora Solar’s expansion into new markets. Engineers on this team create solutions that address local compliance needs and adapt workflows for different regions. Collaboration with stakeholders from various countries helps the team understand local solar sales, design, and installation practices. The group values knowledge sharing, inclusivity, and continuous improvement, celebrating progress whether it’s a new feature launch or a more resilient system. Role Overview The International Software Engineer will help strengthen Aurora Solar’s platform as the company grows globally. This role focuses on building scalable systems that support new initiatives and enhance the experience for both solar professionals and homeowners. The position offers opportunities to take on increasing responsibility and contribute to smarter, simpler solutions for the clean energy transition. This is a hybrid role based in Warsaw, Poland.

Join our dynamic team at Sigma Software Group as a Senior Software Engineer / Team Leader, where you'll play a pivotal role in leading innovative projects and guiding a skilled team of developers. You will be responsible for architecting robust software solutions, ensuring high-quality code, and mentoring junior developers.We are looking for a passionate leader who thrives in a collaborative environment and is eager to take on challenges. If you have a strong background in software engineering and a desire to lead a team towards success, we want to hear from you!

Are you passionate about leading a team while writing high-quality code? Join Sigma Software as a Senior Software Engineer / Team Leader! In this pivotal role, you will guide a talented team of engineers, overseeing code reviews, design critiques, and career development while collaborating with our integration teams.Design and develop scalable solutions, ensuring a balance between production-ready code and rapid proof-of-concept development.Take ownership of sprint planning and execute the quarterly roadmap effectively.Serve as the final escalation point for complex technical challenges.Quickly learn and adopt new technologies while strategically managing technical debt.

Senior Software Engineer, Data Foundations ABOUT THE ROLE At Peloton, we view Data as a Product—a vital asset that drives every member interaction and influences business decisions. Our Datastores team is committed to offering a dependable, secure, and high-performing data persistence layer for application services throughout the organization. Our core principles include: 1. Safeguard the data, 2. Optimize for scalability, speed, and reliability, and 3. Minimize manual effort. We are seeking a Senior Software Engineer with extensive experience in constructing and managing data-intensive systems to join our Datastores team. This position is perfect for a backend engineer who has developed and maintained production systems heavily reliant on databases, caching layers, and data pipelines, and who is eager to advance their knowledge in scalable, cloud-native data infrastructures. You will collaborate at the intersection of application engineering and data platform reliability, working alongside service teams to enhance the storage, access, scalability, and observability of data across Peloton’s ecosystem. YOUR DAILY IMPACT AT PELOTON Your responsibilities will include: Designing, building, and maintaining backend systems that depend on scalable and highly available data persistence layers. Collaborating with service teams to refine database design, enhance query performance, and optimize data modeling. Contributing to automation efforts surrounding infrastructure provisioning using tools like Terraform and Backstage, while improving developer experience by creating self-service tools for databases and caching systems. Focusing on observability, performance insights, and autoscaling strategies for production datastores. Participating in architectural discussions regarding multi-regional data persistence and global scalability. This role merges hands-on backend engineering with significant exposure to cloud data systems and platform reliability challenges. WHAT YOU BRING We are looking for proficient backend engineers who are data-centric—those who have built systems where data performance, reliability, and modeling are crucial. 5+ years of software engineering experience in developing production backend systems. Strong familiarity with relational databases such as PostgreSQL or MySQL, including schema design, indexing, and query optimization. Experience with NoSQL datastores like DynamoDB, Redis, Elasticsearch, or Memcache. Exposure to data pipelines, event-driven architectures, and cloud technologies.

Join a Transformative CompanyAt Palantir, we are dedicated to developing innovative software that tackles some of the world's most pressing challenges. We collaborate with major institutions globally to revolutionize their data and technology utilization. Our solutions have been instrumental in preventing terrorist activities, advancing medical research, enhancing financial market strategies, and much more. If you're passionate about impactful projects, we invite you to become part of our team.Your RoleAs a Forward Deployed Software Engineer (FDSE), you will engage directly with clients to swiftly assess their most critical issues and devise data-driven solutions. Our clients depend on Palantir’s platforms for essential operations, often beginning with probing questions like “What causes our flight delays?” or “How can we improve money laundering detection?” In this role, you will leverage your analytical prowess, creativity, and technical expertise to empower organizations to harness their data for significant global impact. You will gain unparalleled insights and contribute to vital industries and institutions.Your responsibilities will parallel those of a startup CTO, working in agile teams with minimal oversight while taking full ownership of high-stakes projects. Your daily tasks may include architectural discussions with engineers, managing vast datasets, developing custom web applications, liaising with client executives, or strategizing with your team.Whether your aspirations lie in entrepreneurship or engineering leadership, Palantir offers an unparalleled environment — with exceptional colleagues — to cultivate your skills. You will learn to dissect complex problems, evaluate the implications of solutions, explore new technologies and programming languages, and even contribute to their development. You will operate independently while being supported by a community that encourages your growth and challenges you to excel.Our Core Values• Impact: Engage in significant and challenging projects that drive positive change.• Ownership: See projects through from conception to completion, overcoming any challenges along the way.• Collaboration: Work closely with diverse teams, including fellow FDSEs, product teams, and Deployment Strategists, as well as with clients on-site to address their needs.• Trust: We empower each other to manage our time and priorities effectively, allowing for independent thought and decision-making.• Growth: We motivate ourselves and colleagues to pursue new challenges and opportunities for personal and professional development.

Join the forefront of digital privacy with Nordsec!Are you a passionate and innovative software engineer ready to tackle complex challenges? Become a pivotal part of our dynamic team responsible for developing cutting-edge technologies such as Threat Protection Pro, the NordLynx protocol, and the world’s fastest VPN. Your contributions will empower millions of users to reclaim control over their online security, privacy, and data.

Join our dynamic team at Inetum2 as a Senior Fullstack Software Engineer, where you'll be at the forefront of developing innovative software solutions. In this role, you will leverage your expertise in both frontend and backend technologies to build scalable applications that enhance user experience. Collaborate with cross-functional teams to design, develop, and maintain high-quality software products.

Join our dynamic team at inetum2 as a Senior Software Quality Assurance Engineer, where you will play a crucial role in ensuring the quality and performance of our software solutions. You will be responsible for developing and executing test plans, identifying bugs, and working collaboratively with developers to enhance product quality.

Join our dynamic team at Box, Inc. as a Senior Software Engineer specializing in Home Web applications. In this role, you will leverage your extensive experience in software development to design and implement innovative solutions that enhance user experiences. Collaborate closely with cross-functional teams to deliver high-quality software solutions that align with our strategic goals.

Join Complexio, where our innovative AI platform revolutionizes business processes by efficiently managing and comprehending extensive enterprise data—both structured and unstructured. Utilizing proprietary models, knowledge graphs, and orchestration layers, we streamline human-computer interactions and autonomously execute intricate workflows on a large scale.As a joint venture between Hafnia and Símbolo, alongside partners such as Marfin Management, C Transport Maritime, BW Epic Kosan, and Trans Sea Transport, Complexio is at the forefront of redefining enterprise productivity through context-aware, privacy-first automation.This project is dedicated to enhancing business operations through cutting-edge artificial intelligence and advanced technologies, enabling intelligent data handling and automated decision-making. Our solutions are built with modern, high-performance architectures to guarantee efficiency, security, and scalability.

WHAT IS BOX? Box (NYSE:BOX) stands at the forefront of Intelligent Content Management. Our innovative platform empowers organizations to enhance collaboration, manage comprehensive content lifecycles, safeguard essential data, and revolutionize business workflows with enterprise AI. In this new AI-first business landscape, we enable companies to flourish. Established in 2005, Box simplifies operations for some of the world's leading organizations, including JLL, Morgan Stanley, and Nationwide, with our headquarters located in Redwood City, CA, and offices in the U.S., Europe, and Asia.Joining Box means you will play a pivotal role in advancing our platform. Content is the backbone of daily operations, encompassing billions of files and information shared across teams and departments—ranging from contracts, invoices, employee records, to marketing assets. Our mission is to infuse intelligence into content management, enabling our customers to entirely transform their workflows. With the integration of AI and enterprise content, the potential to reshape how the world collaborates has never been more significant, and at Box, you will be at the forefront of this transformative journey.WHY BOX NEEDS YOUBox Apps is transforming how enterprises utilize content by delivering an intelligent no-code builder that facilitates automation, orchestration, and faster decision-making. We are investing in our Warsaw hub to scale this innovative product globally. As a Senior Software Engineer, you will spearhead projects from conception to production, elevate engineering standards, and influence our technical strategy for a rapidly expanding product utilized by thousands of customers.WHAT YOU’LL DOTake the lead in designing and delivering complex, user-facing features and platform capabilities for the Box Apps frontend.Collaborate closely with product, design, and backend teams to define APIs, data contracts, and seamless end-to-end experiences.Drive the creation of technical specifications, architectural reviews, and design documentation that prioritize speed, quality, and maintainability.Advocate for reliability through rigorous testing (unit/integration/e2e), performance profiling, and observability.Mentor fellow engineers through pairing sessions, design reviews, and constructive feedback, enhancing team practices.Break down complex problems, develop roadmaps, and deliver iteratively in line with quarterly objectives.

Waymo is at the forefront of autonomous driving technology, committed to becoming the most trusted driver globally. Originating from the Google Self-Driving Car Project in 2009, Waymo is dedicated to creating the Waymo Driver—The World’s Most Experienced Driver™—to enhance mobility access and save lives lost in traffic accidents. This innovative driver is the backbone of Waymo’s fully autonomous ride-hail service and is adaptable to various vehicle platforms and applications. With over ten million rider-only trips and extensive experience driving autonomously over 100 million miles on public roads, Waymo is changing the landscape of transportation.Are you ready to contribute to the next generation of infrastructure for driverless vehicles?Join our Fleet Orchestration and Optimization team at Waymo and play a pivotal role in shaping the future of transportation! We seek a dedicated Senior Software Engineer eager to enhance our core ride-hailing and fleet management systems.As a product-minded individual, you will tackle cross-functional challenges that require collaboration across teams (mobile applications, cloud backends, and the Waymo Driver) and various functions (operations, product, legal, partnerships, policy & privacy) to design and deliver essential infrastructure for our business.In this hybrid role, you will report directly to an Engineering Manager.

Join our innovative team as a Senior Software Engineer focused on transforming business processes through cutting-edge artificial intelligence and advanced technologies. This project is dedicated to optimizing intelligent data handling and facilitating automated decision-making, utilizing modern, high-performance solutions that guarantee efficiency, security, and scalability.

Join Complexio, a pioneering joint venture at the forefront of AI innovation, dedicated to streamlining business processes through advanced automation. Our Foundational AI platform leverages comprehensive enterprise data—both structured and unstructured—to enhance productivity and drive intelligent decision-making.With a collaborative team of experts from diverse fields, we utilize proprietary models and knowledge graphs to optimize human-computer interactions and execute complex workflows autonomously at scale. Our mission is to redefine enterprise efficiency through context-aware, privacy-first automation.If you are passionate about harnessing AI and advanced technologies to transform business processes and are eager to contribute to a dynamic project, we invite you to apply!

Join Complexio, a pioneering company at the forefront of AI-driven business automation. Our Foundational AI platform revolutionizes enterprise productivity by efficiently managing both structured and unstructured data. Leveraging proprietary models, knowledge graphs, and orchestration layers, we empower organizations to enhance human-computer interactions and automate complex workflows seamlessly.As a joint venture established between Hafnia and Símbolo, and supported by esteemed partners including Marfin Management, C Transport Maritime, BW Epic Kosan, and Trans Sea Transport, Complexio is on a mission to redefine the landscape of business operations through privacy-first automation.Your role will focus on optimizing business processes using advanced AI technologies, facilitating intelligent data management, and enabling automated decision-making. Our solutions are designed for high performance, ensuring security and scalability in modern enterprises.