Senior Software Engineer - Python Development

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.

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.

At Samba TV, we are pioneers in tracking streaming and broadcast video globally through our innovative data and technology solutions. Our mission is to revolutionize the viewing experience for everyone. We empower media companies to connect with their audiences for new shows and movies while allowing advertisers to engage viewers and measure their reach across all devices. With a unique cultural perspective shaped by our global data and AI-driven insights, we are committed to transforming the media landscape.We are on the lookout for a skilled Data Engineer to enhance our Internal Data and Performance (IDP) team within the Internal Measurement department. This team serves as the definitive source of truth for internal data health and operational metrics, overseeing systems that monitor the company's television footprint, partner payments, and data quality. You will collaborate with various technical teams to enhance visibility and promote data-driven decision-making throughout the organization.

Waymo is revolutionizing the future of transportation with our cutting-edge autonomous driving technology. As a pioneer in this field, we aspire to be the world's most trusted driver. Originating from the Google Self-Driving Car Project in 2009, we have dedicated ourselves to developing the Waymo Driver—The World’s Most Experienced Driver™—which enhances mobility access while aiming to prevent the tragic loss of lives due to traffic accidents. Having completed over ten million rider-only trips and driven autonomously for more than 100 million miles on public roads, we are ready to take the next step in our journey.Join our dynamic Waymo Commercialization team and play a crucial role in shaping the future of transportation! We are seeking an enthusiastic Staff Software Engineer who is eager to contribute to the evolution of our core ride-hailing and fleet management systems.In this hybrid role, you will engage in cross-disciplinary collaboration, working alongside technical teams (mobile applications, cloud backends, and the Waymo Driver) and functional departments (operations, product, legal, partnerships, policy, and privacy) to develop and implement vital infrastructure for our business.

As a Software Validation Engineer III at Collabera, you will play a critical role in ensuring the quality and reliability of our software solutions. You will be responsible for developing and implementing validation strategies, conducting thorough testing, and collaborating with cross-functional teams to enhance product performance. Your expertise will contribute to continuous improvement initiatives and compliance with industry standards.

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!

About the RoleJoin Logz.io as a Backend Software Engineer and be part of a dynamic team that is reshaping the observability landscape. In this role, you will design and develop robust backend systems that scale effectively, ensuring seamless integration and exceptional performance.Key ResponsibilitiesDevelop and maintain scalable backend services and APIs.Collaborate with cross-functional teams to define, design, and ship new features.Troubleshoot and optimize existing systems for performance and scalability.Participate in code reviews and contribute to team knowledge sharing.

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 the Role nearmap is hiring a Software Engineer in Warsaw. This team focuses on developing solutions for aerial imagery, working together to solve technical challenges and improve products. What to Expect Contribute to projects that advance aerial imagery technology Work closely with colleagues in a collaborative setting Engage with complex problems and help build practical solutions Who We’re Looking For Experience in software engineering Comfort working as part of a team Interest in tackling technical challenges This position is based in Warsaw.

About Us:RTB House stands as a pioneering performance demand-side platform (DSP), harnessing proprietary Deep Learning AI algorithms to empower brands in their growth journeys. As a market leader, we drive performance through Deep Learning across the entire purchase funnel.Established in 2012 and currently operating in over 90 markets, RTB House is firmly private-by-design, advocating for first-party advertising and a relentless commitment to innovation. Our end-to-end Deep Learning-powered AdTech products and solutions are tailored to maximize conversions, facilitate new customer acquisition, enhance engagement, and stimulate long-term demand for our global clientele.We are on the lookout for a talented Software Engineer with substantial backend and microservices development experience to join our dynamic team. In this role, you will design, develop, and maintain web applications, microservices, and internal tools, while also contributing to frontend development as necessary.

Location: PolandAbout Us:RTB House is a leading global technology company that specializes in cutting-edge marketing solutions for renowned brands and agencies across the globe. Our proprietary ad-buying engine, the first of its kind, utilizes Deep Learning algorithms to provide advertisers with exceptional results and to effectively meet their objectives at every stage of the marketing funnel.We invite you to join RTB House as the head of our AI Engineering Lab, a team dedicated to driving innovation through the latest advancements in Agentic AI. This position is designed for a proactive engineer and technical leader committed to architecting, developing, and deploying next-generation AI solutions that enhance engineering productivity.

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 our dynamic team at Sigma Software Group as a Principal Software Engineer specializing in Ruby. In this role, you will lead innovative projects, drive technical excellence, and mentor junior developers. Your expertise will be pivotal in shaping our software solutions and enhancing our development practices.

Waymo is pioneering the future of mobility with its cutting-edge autonomous driving technology. Established in 2009 as the Google Self-Driving Car Project, our mission is to become the world’s most trusted driver. Our flagship product, the Waymo Driver—The World’s Most Experienced Driver™—aims to revolutionize access to transportation while drastically reducing road traffic fatalities. The Waymo Driver powers our fully autonomous ride-hailing service and is compatible with various vehicle platforms and applications. With over ten million rider-only trips completed and vast experience from driving over 100 million miles on public roads and extensive simulations across more than 15 U.S. states, we are leading the way in safety and efficiency.The RO Performance team plays a pivotal role in enhancing Waymo's self-driving technology. We are responsible for developing and maintaining the crucial infrastructure needed to process and analyze vast amounts of data from real-world driving logs and simulations.Our systems create essential metrics and dashboards that are vital for monitoring product performance, pinpointing areas for enhancement, and facilitating data-driven decision-making. The insights generated by our team directly impact Waymo's operational strategies, weekly performance evaluations, and, ultimately, the safety and reliability of our autonomous vehicles.In this hybrid role, you will report directly to a Staff Software Engineer.

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!

Join Hostinger as a Backend Software Engineer specializing in Node.js in a fully remote position! In this role, you will be responsible for developing high-performance backend solutions that support our web applications and services. Collaborate with a dynamic team of developers and contribute to exciting projects that empower our users around the globe.

About Saily Saily, part of nordsec, helps travelers stay connected without roaming fees or physical SIM cards. Our platform delivers fast, secure mobile data in more than 200 destinations. With millions of paying users and hundreds of thousands online at any moment, we focus on making travel easier and more enjoyable. Our Product Engineering Culture Engineers own the entire product lifecycle, from initial concept through deployment. AI tools support coding and automate repetitive work, so engineers can focus on meaningful problems. Team members regularly suggest, discuss, and implement improvements together. We value curiosity, ongoing learning, and sharing knowledge across the team. Our main goal is to keep the travel experience smooth and stress-free for our users. We put growth ahead of comfort, impact above process, and contribution before hierarchy. Saily provides context, autonomy, and AI-driven tools to help people do their best work. About the Internship This is a 3-month, full-time paid internship based in Warsaw. Trainee Engineers work with experienced team members from day one, tackling real product challenges and building practical skills. Guidance is available, but interns are encouraged to take ownership and grow into their responsibilities. We use AI as a standard part of our workflow and emphasize strong engineering habits from the start. Outstanding interns may receive an offer for a full-time position at the end of the program. Who We’re Looking For Clear thinkers who learn quickly and take responsibility for their work Curious, self-disciplined individuals ready to contribute in a collaborative setting People eager for hands-on experience with real products, not just theoretical tasks If this sounds like the right fit, apply now to join the Saily team in Warsaw.

Join Nearmap as a Lead Senior Software Engineer on our dynamic API team, where you will spearhead the design, implementation, and delivery of innovative software solutions that align with our business goals. Your expertise will empower our developers to tackle real-world challenges faced by our users.In this pivotal role, you will collaborate closely with the Product team to analyze requirements, design robust software solutions, and elevate the capabilities of the development team through best practices and mentorship. You will have the unique opportunity to contribute to a powerful platform that manages petabytes of aerial imagery, fuels sophisticated AI models, and provides real-time geospatial insights to clients worldwide. Our systems are designed for high performance, scalability, and cutting-edge innovation, managing everything from data ingestion to API delivery and customer applications.This is a rare chance to influence quality practices across an extensive platform integrating high-resolution imagery, AI-driven insights, and scalable data delivery systems while establishing API initiatives in our new Warsaw engineering hub. Your contributions will be instrumental in ensuring the reliability of systems that are transforming decision-making processes across various industries.At Nearmap, we value versatile engineers who possess leadership skills and enthusiasm for overcoming new challenges across the full technology stack as we continue to advance our capabilities.