Lead Senior Software Engineer Api Team jobs in Warsaw – Browse 868 openings on RoboApply Jobs

Lead Senior Software Engineer Api Team jobs in Warsaw

Open roles matching “Lead Senior Software Engineer Api Team” with location signals for Warsaw. 868 active listings on RoboApply Jobs.

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companyNearmap logo
Full-time|On-site|Warsaw

Join our dynamic API team as a Lead Senior Software Engineer at Nearmap, where your expertise will drive innovative software solutions that align with our business goals. You will lead a talented group of developers in designing, implementing, and delivering impactful software that addresses real-world challenges faced by our users. Collaborating closely with the Product team, you will help design software solutions that enhance our development team's capabilities by promoting best practices and mentoring individuals to reach their full potential.Your contributions will impact a sophisticated platform that processes massive volumes of aerial imagery, powers cutting-edge AI models, and provides real-time geospatial insights to clients globally. Our systems stretch the limits of performance and scalability, from data ingestion and processing to intelligent delivery through APIs and customer-facing applications.This is a unique opportunity to influence quality practices across a comprehensive platform that includes high-resolution imagery, AI-driven insights, and scalable data delivery systems, all while establishing API projects at our new engineering hub in Warsaw. You will play a pivotal role in guaranteeing the reliability of systems that are revolutionizing decision-making across various industries at scale.At Nearmap, we seek engineers who are adaptable, exhibit leadership qualities, and are eager to tackle new challenges across the full stack as we continue to advance technology.

May 30, 2025
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companyNearmap logo
Full-time|On-site|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.

Mar 2, 2026
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companyNearmap logo
Full-time|On-site|Warsaw

As a Lead Senior Software Engineer on the API team at Nearmap, you will take charge of guiding developers in the design, implementation, and delivery of innovative software solutions that significantly contribute to Nearmap's business goals and effectively address real-world challenges faced by our users. You will collaborate closely with the Product team to analyze, design, and enhance software solutions while elevating the development team's skills by promoting best practices and providing coaching to help individuals reach their full potential.Your work will directly impact a platform that manages petabytes of aerial imagery, drives sophisticated AI models, and delivers real-time geospatial insights to clients globally. From data ingestion and processing to intelligent API delivery and user-facing applications, our systems redefine performance, scalability, and innovation.This role presents a unique opportunity to influence quality practices across a comprehensive platform that encompasses high-resolution imagery, AI-driven insights, and scalable data delivery systems while helping to establish API projects within our new engineering hub in Warsaw. You will play a vital role in ensuring the dependability of systems that are transforming how industries make pivotal decisions at scale.At Nearmap, we seek engineers who are adaptable, exhibit leadership qualities, and are eager to tackle new challenges across the full stack as we strive to advance technology.

Mar 2, 2026
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companySigma Software Group logo
Full-time|On-site|Warsaw

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!

Mar 12, 2026
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companySigma Software logo
Full-time|Remote|Warsaw

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.

Mar 4, 2026
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companyNordsec logo
Full-time|On-site|Warsaw

Join our dynamic UCP team at Nordsec as a Senior Software Engineer specializing in React. In this role, you will engage in developing innovative software solutions that enhance user experiences and drive our mission forward. Your expertise in React and software development will be pivotal in designing, implementing, and maintaining high-quality applications.As a member of our team, you will collaborate with cross-functional teams, contribute to architectural decisions, and mentor junior developers. We value creativity, problem-solving, and a commitment to excellence.

Apr 13, 2026
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companyRTB House logo
Full-time|On-site|Warsaw, Masovian Voivodeship, Poland

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.

Feb 13, 2026
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company
Full-time|On-site|Warsaw

Join Nord Security and innovate the future of online safety.At Nord Security, we empower users and businesses to reclaim their online privacy and security. Our diverse range of solutions—from VPNs and password managers to threat intelligence and eSIMs—are designed to address complex security challenges, earning the trust of millions around the globe.As a Senior Software Engineer, you'll play a pivotal role in enhancing our User Control Panel, ensuring users have a seamless and secure experience.Key ResponsibilitiesDesign and enhance a sophisticated User Control Panel to foster user trust and engagement, driving sustainable growth.Implement new features and improve user flows within the account management portal, including subscriptions, billing, and security options.Maintain a high-quality, scalable front-end codebase using modern best practices.Continuously enhance code quality, performance, and user experience.Write and uphold unit and integration tests alongside feature development.Contribute to the component library and design system standards.Engage in code reviews to uphold engineering excellence.Collaborate with backend engineers to define API contracts and handle errors effectively.Work with QA engineers to guarantee feature reliability and document workflows.Debug and resolve issues throughout the frontend stack, including UI rendering and state management.Advocate for best engineering practices and contribute to improving development processes.Conduct research and development activities to support new initiatives and make informed technical decisions.Mentor team members and provide technical guidance on best practices.Shape the team's technical vision and contribute to long-term goals.Essential Qualifications4+ years of experience in JavaScript and TypeScript programming.2+ years of hands-on experience with React framework.In-depth understanding of web development principles, testing methodologies, and performance optimization techniques.Proficiency in modern front-end development practices and tools.Strong problem-solving skills and attention to detail.

Apr 13, 2026
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companyNordsec logo
Full-time|On-site|Warsaw

We are seeking a talented and experienced Senior iOS Engineer to join our dynamic team at Nordsec. In this role, you will have the unique opportunity to lead projects, mentor junior developers, and contribute to the design and implementation of innovative iOS applications. Your expertise will play a vital role in shaping our products and enhancing user experiences. As a Senior iOS Engineer, you will collaborate closely with cross-functional teams to ensure seamless integration of our applications with back-end services. You will also be responsible for maintaining high code quality and implementing best practices in software development.

Mar 25, 2026
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companyaltersolutions logo
Full-time|On-site|Warsaw

Design, develop, and enhance API platforms and application security solutions using Java (JDK 21).Deploy and manage software solutions on the OpenShift platform.Create and maintain documentation to assist the organization in the implementation of developed solutions.Develop tools and procedures for effective monitoring, logging, and deployment optimization.Execute essential operations including patching and certificate management.

Aug 8, 2025
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companySoftwareMind logo
Full-time|On-site|Warsaw

SoftwareMind seeks a WEBCON Consultant / Team Lead in Warsaw. This position centers on digital transformation and process automation for clients aiming to streamline operations and boost collaboration. Role overview As a WEBCON Consultant / Team Lead, the work involves guiding organizations through changes that improve business processes. The focus remains on helping clients adopt automation tools and strategies that support efficiency and teamwork. Location This role is based in Warsaw.

Apr 24, 2026
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companyNearmap logo
Full-time|On-site|Warsaw

Join our dynamic API team as a Software Engineer, where you'll address the exciting challenges of delivering high-resolution aerial imagery and geolocation data at scale. Your responsibilities will encompass designing robust data pipelines and enhancing response times for intricate geospatial queries. In this role, you'll work closely with the Product team to transform ideas into reality, navigating various technology stacks to overcome complex technical obstacles. Whether you're scaling APIs, architecting innovative microservices, or refining developer integrations with our platform, your contributions will significantly influence how businesses leverage location intelligence to drive impactful decisions.

Mar 2, 2026
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companyevooq logo
Full-time|On-site|Warsaw

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!

Apr 8, 2026
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companyGrowe logo
Full-time|On-site|Warsaw

About Growe Growe is a business advisory and services group focused on the iGaming and Entertainment sectors. The company develops strategies and scalable solutions to help businesses adapt, enter new markets, and build long-term success. Role Overview: Support Team Lead Based in Warsaw, the Support Team Lead manages a team of Level 1 support engineers working around the clock in a 24/7 shift system. This position centers on ensuring reliable support operations, meeting Service Level Agreements (SLAs), and strengthening incident management practices. Key Responsibilities Lead and supervise a team of Level 1 support engineers in a 24/7 shift environment. Maintain high standards for support operations and ensure all SLAs are met. Act as the main escalation point for critical incidents. Improve incident management processes and workflows. Encourage operational excellence and drive continuous improvement efforts. Collaborate closely with Level 2/Level 3, Site Reliability Engineering (SRE), and DevOps teams. Build and support a strong, accountable, and high-performing support team.

Apr 14, 2026
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companySmartRecruiters logo
Full-time|On-site|Poland

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

Apr 24, 2026
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companyAsana logo
Full-time|Hybrid|Warsaw

Join Asana, where our rapid growth presents exciting challenges in ensuring that our systems remain fast, reliable, and resilient. As we evolve our product, we are making a significant investment in reliability, and establishing a brand new Site Reliability Engineering (SRE) team in Warsaw is a crucial component of this strategy. This is a unique opportunity for you to help shape our SRE practice from the very beginning. This role transcends traditional operations; we seek skilled software engineers who are passionate about developing reliable, distributed systems. You will collaborate closely with a small SRE team in San Francisco, infrastructure engineers in Reykjavik, and our established infrastructure team here in Warsaw. Warsaw is poised to become a major hub for our future infrastructure engineering and operations. As one of the founding engineers in this office, you will have a substantial influence on how we construct reliable infrastructure, manage incidents, and support our broader company initiatives. This position is based in our Warsaw office with a hybrid schedule - in-office days are Monday, Tuesday, and Thursday. We provide a Contract of Employment (UoP) for our employees in Poland.

Feb 23, 2026
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companyTeltonika Networks logo
Full-time|On-site|Warsaw, Masovian Voivodeship, Poland

Teltonika Networks seeks a Tech Lead or Senior Embedded Linux Software Engineer for its Warsaw office. This position centers on developing and enhancing networking solutions that enable industrial connectivity in fields such as Industry 4.0, Smart Cities, and Green Energy. Role overview This role involves building software for both bare metal and embedded Linux devices. The work addresses complex challenges at the intersection of software and hardware, supporting industrial-grade connectivity equipment like routers, switches, gateways, and modems. These products help power modern infrastructure and automation. What you will do Develop software for bare metal and embedded Linux platforms Tackle challenging problems that involve both software and hardware Research and implement new technologies to keep solutions up to date Integrate with hardware components and embedded systems Coordinate with team members in Warsaw and the headquarters in Lithuania Offer technical guidance and mentorship to colleagues About the products The Networking Solutions division designs and manufactures equipment for industrial connectivity. To see the full product range, visit https://www.teltonika-networks.com/products.

Apr 27, 2026
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companyAsana, Inc. logo
Full-time|On-site|Warsaw

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.

Mar 13, 2026
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companyAsana, Inc. logo
Full-time|Hybrid|Warsaw

Are you tired of the mundane task of reporting? Join Asana and help us revolutionize one of the most disliked managerial responsibilities. While reporting is often viewed as a tedious chore, it is essential for effective decision-making. When approached correctly, reporting evolves from a simple status update into a vital strategic tool. At Asana, the Reporting Connections team is dedicated to transforming reporting into an engaging and impactful experience, empowering leaders with the clarity and confidence they need to steer their organizations toward success. Our mission is to create a seamless connection between the work being done and the decisions that need to be made. Executives and senior leaders require more than just dashboards; they need straightforward access to crucial information. They seek clear, concise updates straight to their inboxes, Slack, or during morning meetings, without the hassle of opening additional tabs. We are developing systems that provide real-time insights across diverse tools, teams, and templates. We are reimagining reporting, and we need your expertise. If you've ever been frustrated by status updates, this role could be the perfect fit for you. This position is based in our Warsaw office with a hybrid work schedule. Standard in-office days are Monday, Tuesday, and Thursday, while Wednesdays offer the option to work from home. Working from home on Fridays is contingent on your specific role, and your recruiter will provide more information regarding in-office requirements. All employees in Poland are employed under a contract of employment.

Feb 23, 2026
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companyPeloton Interactive, Inc. logo
Full-time|On-site|Poland

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.

Mar 19, 2026

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