Back End Developer Jobs

Full Stack Javascript Developer Particle41 is seeking a talented and versatile Full Stack Developer to join our innovative team. As a Full Stack Developer, you will play a key role in designing, developing, and maintaining end-to-end software solutions that meet our clients' needs. You will work on both front-end and back-end technologies, collaborating with cross-functional teams to deliver high-quality products. This is an exciting opportunity to have an impact on projects and grow your skills in a supportive and dynamic environment. In This Role, You Will: Software Development Develop and maintain web applications using front-end technologies Experience or knowledge in backend technology will be an advantage. Design responsive and user-friendly interfaces using modern JavaScript/TypeScript frameworks such as NextJS, React.js or Angular and front-end CSS frameworks like Tailwind and Bootstrap Create RESTful, GraphQL APIs to enable communication between backend and front-end applications. Write clear and concise documentation for APIs, including usage guides and code examples, to facilitate integration by internal and external developers. Basic understanding of Open API specifications. Write clean, efficient, and well-documented code following industry best practices and coding standards. Strong understanding of the Node.js ecosystem and architecture and integrations with popular third-party libraries. Implement API authentication and authorization mechanisms, such as OAuth, JWT, or API keys, to ensure data security and privacy. Requirements Gathering and Analysis Collaborate with designers, product managers, and other stakeholders to gather requirements and translate them into technical solutions. Participate in requirement analysis sessions to understand business needs and user requirements. Provide technical insights and recommendations during the requirements-gathering process. Agile Development Participate in Agile development processes, including sprint

Frontend Developer Particle41 is seeking a talented and versatile Frontend developer to join our innovative team. As a frontend developer, you will play a key role in designing, developing, and maintaining end-to-end software solutions that meet our clients' needs. You will work on both front-end and back-end technologies, collaborating with cross-functional teams to deliver high-quality products. This is an exciting opportunity to have an impact on projects and grow your skills in a supportive and dynamic environment. In This Role, You Will: Software Development Develop and maintain web applications using a combination of front-end and back-end technologies. Design responsive and user-friendly interfaces using modern JavaScript/TypeScript frameworks such as Next.js, React.js or Angular and front-end CSS frameworks like Tailwind and Bootstrap Implementing server-side logic and database integration using languages like Node.js, Python, or PHP and database technologies like ORMs, MySQL, MongoDB, or PostgreSQL will be an added advantage. Write clear and concise documentation for APIs, including usage guides and code examples, to facilitate integration by internal and external developers. Basic understanding of Open API specifications. Write clean, efficient, and well-documented code following industry best practices and coding standards. Strong understanding of the Javascript ecosystem and architecture and integrations with popular third-party libraries. Implement API authentication and authorization mechanisms, such as OAuth, JWT, or API keys, to ensure data security and privacy. Requirements Gathering and Analysis Collaborate with designers, product managers, and other stakeholders to gather requirements and translate them into technical solutions. Participate in requirement analysis sessions to understand business needs and user requirements. Provide technical insights and recommendations during the requirements-gathering process. Agile Development Participate in Ag

About Ubiquiti At Ubiquiti Inc., we create technology platforms for Businesses, Smart Homes, and Internet Service Providers, driven by our goal to connect everyone, everywhere. To date, Ubiquiti has shipped over 100 million devices worldwide, from ISP networking products to next generation of IT solutions. Our growth is made possible by the dedicated team of hundreds behind the scenes. From software developers and product managers to designers and strategists, Team UI is driven to achieve our common goal: Rethinking IT. At Ubiquiti, you’ll heighten your potential and broaden your horizons - all while shaping the future of connectivity. Ubiquiti Prague office is looking for talented Backend developer for the UniFi Team. You’ll be working on the UniFi application back-end to develop efficient, scalable and maintainable features. This role requires working from our Prague office at least two days per week. The project stack: Kotlin; Spring Boot 4.0; PostgreSQL; Github Actions; Go. Responsibilities: REST API development Develop integrations with network device firmware and other UniFi OS applications. Participate in all phases of development, including feature design and testing. Code reviews for other team members. Requirements: Senior-level engineering experience, typically 5+ years shipping production systems. Strong problem-solving and systems thinking - you can break down ambiguous problems and design good solutions. Good understanding of SOLID principles. Experience in web application development. Daily, fluent use of AI coding assistants as a core part of your workflow. Fluent in English and Czech. Nice to have: Kotlin and Spring framework knowledge. Advanced knowledge of networking. Familiarity with networking, virtualization, storage and HW in general. Experience with Bash and Unix. Benefits​: Competitive salary, 5 weeks of vacation per year. Discretionary bonuses based on individual performance

We are looking for a Full Stack Developer to join our growing engineering team. In this role, you will design, build, and operate scalable software platforms that support analytics and AI solutions — owning the full journey from intuitive user interfaces to robust cloud-native backends. What This Involves: Front-End Development Develop and maintain user interfaces for web applications using React and Next.js. Translate wireframes and design mockups into functional, accessible UI components. Identify and resolve front-end performance bottlenecks to ensure smooth user experiences. Write and maintain unit and integration tests for front-end components (e.g. Jest, React Testing Library). Back-End Development Develop and maintain high-quality back-end services and APIs using Python. Deploy, operate, and monitor applications in cloud environments (AWS, Azure, or GCP). Manage containerized applications using Docker and Kubernetes. Contribute to the design and evolution of scalable, cloud-native software architectures. Contribute to and maintain CI/CD pipelines for web and back-end applications. Collaboration and Quality Work closely with data scientists, engineers and project managers to deliver integrated end-to-end solutions. Support the development and deployment of AI and analytics solutions. Write clean, well-documented, and maintainable code across the full stack. Participate in technical discussions, code reviews, and continuous improvement initiatives. Adhere to internal and client-mandated data protection and compliance policies, ensuring all handling, storage, and sharing of data meets required security and privacy standards. Requirements: Bachelor’s degree in Computer Science or related fields. 5+ years of software development experience, with meaningful time on both front-end and back-end systems. Experience designing systems in cloud-native or distributed environments is a plus. Excellent communication and collaboration skills — comfortable working acros

About Ubiquiti At Ubiquiti Inc., we create technology platforms for Businesses, Smart Homes, and Internet Service Providers, driven by our goal to connect everyone, everywhere. To date, Ubiquiti has shipped over 100 million devices worldwide, from ISP networking products to next generation of IT solutions. Our growth is made possible by the dedicated team of hundreds behind the scenes. From software developers and product managers to designers and strategists, Team UI is driven to achieve our common goal: Rethinking IT. At Ubiquiti, you’ll heighten your potential and broaden your horizons - all while shaping the future of connectivity. Position: Ubiquiti Riga office is looking for talented Java developer for UniFi Network Team. You’ll be working on UniFi Network application back-end to develop efficient, scalable and maintainable features. Your work will have impact on large end-user base and you’ll be able to use products you develop at home. The project stack: Java 17/21; Spring Boot 3.2.; MongoDB; GraalVM; Jenkins. Responsibilities: REST API development to support Web & mobile applications; Develop integrations with network device firmware and other UniFi OS applications; Participate in all phases of development, including feature design. Requirements: 5+ years developing Java applications; Good understanding of SOLID principles; Experience in web application development; Experience with AI tools - Claude, Codex, etc. Fluent in English and Latvian. Nice to have: Spring or other web framework knowledge; Experience with Bash and Unix. Benefits: International work environment and work with global development teams; Ability to deliver software that is used by millions of people across the globe; Opportunity to leverage and integrate modern AI tools into product development; Access to all Ubiquiti products; Medical insurance; Hybrid approach - office in Riga; Flexible work hours; Compensation package matching global standards, including competitive sala

Modernize business-critical Java platforms and help shape the next generation of financial markets technology. The Role Capco is looking for a Java Developer to join a major technology modernization initiative focused on upgrading business-critical legacy applications and their supporting technology. This is a hands-on back-end engineering role for someone with deep Java experience who enjoys solving the challenges that come with modernizing established platforms. You’ll help refactor and migrate legacy Java 6/8, JBoss and Struts applications towards modern Java frameworks and deployment environments, including JDK 17, Spring Boot, OpenShift, Kubernetes and AWS. You’ll work across the full development lifecycle, helping ensure applications remain secure, reliable and fully functional throughout the modernization journey. What You’ll Do Modernize and refactor legacy Java 6/8, JBoss and Struts applications, supporting migration to JDK 17, Spring Boot and newer JBoss EAP environments. Design, develop and enhance Java back-end services while contributing to TypeScript components and modern microservices-based architectures. Containerize and deploy applications using Docker, OpenShift and Kubernetes, with deployment into AWS environments including ECS/EKS. Integrate applications with enterprise authentication and SSO solutions such as Okta, including implementations using Spring SAML. Deliver across the Agile software development lifecycle, from technical design and development through testing, CI/CD, deployment and production release. What We’re Looking For 5-6 years of Java development experience with extensive back-end expertise across Java/J2EE, including Core Java, multi-threading, Collections, JDBC, Maven and Ant. Demonstrated experience upgrading and refactoring legacy Java applications, particularly Java 6/8, JBoss and Struts environments, with experience of Spring Boot and modern Java/JDK versions. Hands-on experience with TypeScript and cont

About Inspira Education Inspira Education Group is one of the fastest-growing edtech startups in the US. We started with a simple mission to democratize access to high-quality coaching so that every student in the world has an equal opportunity to access the best opportunities. As the world’s leading network of top admissions coaches in medical, legal, business, and college studies, we’re building software and services in one place—disrupting long-entrenched application processes with products and experiences that strive to provide an equal platform for candidates from diverse backgrounds worldwide. As one of the fastest-growing edtech firms in the world, we are backed by some of the leading venture capital firms and investors in the world, including Zeev Ventures, Quiet Capital, Craft Ventures and Jeff Fluhr (Founder of Stubhub). About the role We’re looking for a strong full-stack engineer who can own the complete product development process: understand a business problem, define the solution, design the user experience, build the software, and improve it after launch. You’ll work closely with leadership and business teams, combining hands-on engineering with product management and design responsibilities. You should be highly effective with AI coding tools and have the technical depth to independently review, debug, secure, and maintain everything you ship. This is an in-person role requiring 5 day/week in our NYC office. What you’ll own Translate business needs and user feedback into product requirements, user flows, prototypes, and prioritized development plans. Design and build polished applications across the front end, back end, database, and integrations. Make architecture decisions and scope releases that balance speed, reliability, and future maintainability. Use AI tools throughout development to accelerate implementation, testing, debugging, and documentation. Own deployment, production monitoring, incident resolution, and ongoing improvemen

Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale — unleashing the potential of businesses and people. The Elastic Search AI Platform, used by more than 50% of the Fortune 500, brings together the precision of search and the intelligence of AI to enable everyone to accelerate the results that matter. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. What is The Role We're looking for a Senior Software Engineer to join our Streams UI team, where you'll have the chance to shape and enhance our user interface, making it more intuitive and engaging for our users. In this role, you'll work on Fleet. Fleet is the central management experience for Elastic Agent in Kibana. You'll also work on Streams. Streams is our new tool for handling log data. This includes ingesting, organizing, parsing, enriching, and setting retention for the data. You will be part of a skilled group of engineers and designers. You will contribute your expertise and learn from others. If you enjoy tackling complex challenges and want to make a meaningful impact on our product, we’d love to hear from you. What You Will Be Doing Design and implement intuitive user interface components that enhance user commitment, using TypeScript, React, and Node.js. Integrate front-end elements seamlessly with back-end services to ensure a smooth user experience. Conduct usability testing and gather user feedback to drive continuous improvements. Own complex, loosely-defined problems end-to-end: shape the approach, split the work if needed, make the key technical decisions, and deliver. Lead discussions on architecture and system design. During these discussions, consider trade-offs. Also, think about backwards compatibility, performance, and

OUR MISSION At Redwood, we empower our customers with lights-out automation for their mission-critical business processes. ABOUT US Redwood Software is the leading orchestration platform for the autonomous enterprise, driving business transformation at the lowest total cost of ownership. Redwood empowers organizations to intelligently automate and orchestrate mission-critical business and IT processes across complex ERP, hybrid cloud, data and emerging agentic AI systems. Through its SaaS-first automation fabric—with AI embedded across the automation lifecycle—Redwood accelerates the path to autonomous operations. Backed by 30 years of experience and trusted by more than 50% of the Fortune 50, Redwood helps organizations unlock human potential to focus on innovation, growth and what’s next. CORE VALUES One Team. One Redwood Make Your Own Weather Obsess over Customer Success Work the Problem Be Curious Own the Outcome Respect Each Other YOUR IMPACT We are seeking a highly skilled and passionate Full Stack Software Developer with a strong focus on Java to join our growing engineering team. In this role, you will be instrumental in designing, developing, and maintaining robust and scalable full-stack applications that power our automation and SaaS platforms. You will work across the entire software development lifecycle, from concept to deployment, collaborating closely with product managers, designers, and other engineers to deliver high-quality, impactful solutions. Design, develop, and implement highly performant and scalable full-stack applications using Java, Javascript, and related technologies. Build and maintain robust back-end services, APIs, and microservices. Develop responsive and intuitive front-end user interfaces. Collaborate with product management to understand requirements and translate them into technical specifications. Participate in all phases of the software development lifecycle, including planning, design, codin

Full Stack Javascript & Database Developer Particle41 is seeking a talented and versatile Full Stack Developer to join our innovative team. As a Full Stack Developer, you will play a key role in designing, developing, and maintaining end-to-end software solutions that meet our clients' needs. You will work on both front-end and back-end technologies, collaborating with cross-functional teams to deliver high-quality products. This is an exciting opportunity to have an impact on projects and grow your skills in a supportive and dynamic environment. In This Role, You Will: Software Development Develop and maintain web applications using front-end technologies. Experience or knowledge in backend technology will be an advantage. Design responsive and user-friendly interfaces using modern JavaScript/TypeScript frameworks such as NextJS, React.js or Angular and front-end CSS frameworks like Tailwind and Bootstrap Create RESTful, GraphQL APIs to enable communication between backend and front-end applications. Write clear and concise documentation for APIs, including usage guides and code examples, to facilitate integration by internal and external developers. Basic understanding of Open API specifications. Write clean, efficient, and well-documented code following industry best practices and coding standards. Strong understanding of the Node.js ecosystem and architecture and integrations with popular third-party libraries. Implement API authentication and authorization mechanisms, such as OAuth, JWT, or API keys, to ensure data security and privacy. Requirements Gathering and Analysis Collaborate with designers, product managers, and other stakeholders to gather requirements and translate them into technical solutions. Participate in requirement analysis sessions to understand business needs and user requirements. Provide technical insights and recommendations during the requirements-gathering process. Agile Development Participate in Agile development processes,

About Ubiquiti At Ubiquiti Inc., we create technology platforms for Businesses, Smart Homes, and Internet Service Providers, driven by our goal to connect everyone, everywhere. To date, Ubiquiti has shipped over 100 million devices worldwide, from ISP networking products to next generation of IT solutions. Our growth is made possible by the dedicated team of hundreds behind the scenes. From software developers and product managers to designers and strategists, Team UI is driven to achieve our common goal: Rethinking IT. At Ubiquiti, you’ll heighten your potential and broaden your horizons - all while shaping the future of connectivity. Responsibilities: Participate in the development of superior applications for iOS/iPad OS platforms; Ensure the performance, quality, and responsiveness of applications; Collaborate with the team to define, design, and ship new features to a high standard; Work closely with designers and other teams to ensure feature parity and high-quality experience across all platforms. Requirements: Passion for a great UI/UX, understanding of Apple’s design principles and interface guidelines; Proficient knowledge of Swift, SwiftUI and app life cycle; Knowledge of iOS frameworks (e.g. UIKit, SwiftUI, Combine); Familiarity with RESTful APIs/WebSocket to connect to back-end services; Familiarity with Swift code style guidelines; Experience with AI tools - Claude, Codex, etc. Fluent in English and Latvian. Benefits: International work environment and work with global development teams; Ability to deliver software that is used by millions of people across the globe; Opportunity to leverage and integrate modern AI tools into product development; Access to all Ubiquiti products; Medical insurance; Hybrid approach - office in Riga; Flexible work hours; Compensation package matching global standards, including competitive salary depending on your qualification and background (starting from 2500 up to 6000 Euro gross monthly); A-class office with all

Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale — unleashing the potential of businesses and people. The Elastic Search AI Platform, used by more than 50% of the Fortune 500, brings together the precision of search and the intelligence of AI to enable everyone to accelerate the results that matter. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. What is The Role We're looking for a Senior Software Engineer to join our Streams UI team, where you'll have the chance to shape and enhance our user interface, making it more intuitive and engaging for our users. In this role, you'll work on Fleet. Fleet is the central management experience for Elastic Agent in Kibana. You'll also work on Streams. Streams is our new tool for handling log data. This includes ingesting, organizing, parsing, enriching, and setting retention for the data. You will be part of a skilled group of engineers and designers. You will contribute your expertise and learn from others. If you enjoy tackling complex challenges and want to make a meaningful impact on our product, we’d love to hear from you. What You Will Be Doing Design and implement intuitive user interface components that enhance user commitment, using TypeScript, React, and Node.js. Integrate front-end elements seamlessly with back-end services to ensure a smooth user experience. Conduct usability testing and gather user feedback to drive continuous improvements. Own complex, loosely-defined problems end-to-end: shape the approach, split the work if needed, make the key technical decisions, and deliver. Lead discussions on architecture and system design. During these discussions, consider trade-offs. Also, think about backwards compatibility, performance, and

Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale — unleashing the potential of businesses and people. The Elastic Search AI Platform, used by more than 50% of the Fortune 500, brings together the precision of search and the intelligence of AI to enable everyone to accelerate the results that matter. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. What is The Role We're looking for a Senior Software Engineer to join our Streams UI team, where you'll have the chance to shape and enhance our user interface, making it more intuitive and engaging for our users. In this role, you'll work on Fleet. Fleet is the central management experience for Elastic Agent in Kibana. You'll also work on Streams. Streams is our new tool for handling log data. This includes ingesting, organizing, parsing, enriching, and setting retention for the data. You will be part of a skilled group of engineers and designers. You will contribute your expertise and learn from others. If you enjoy tackling complex challenges and want to make a meaningful impact on our product, we’d love to hear from you. What You Will Be Doing Design and implement intuitive user interface components that enhance user commitment, using TypeScript, React, and Node.js. Integrate front-end elements seamlessly with back-end services to ensure a smooth user experience. Conduct usability testing and gather user feedback to drive continuous improvements. Own complex, loosely-defined problems end-to-end: shape the approach, split the work if needed, make the key technical decisions, and deliver. Lead discussions on architecture and system design. During these discussions, consider trade-offs. Also, think about backwards compatibility, performance, and

Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale — unleashing the potential of businesses and people. The Elastic Search AI Platform, used by more than 50% of the Fortune 500, brings together the precision of search and the intelligence of AI to enable everyone to accelerate the results that matter. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. What is The Role We're looking for a Senior Software Engineer to join our Streams UI team, where you'll have the chance to shape and enhance our user interface, making it more intuitive and engaging for our users. In this role, you'll work on Fleet. Fleet is the central management experience for Elastic Agent in Kibana. You'll also work on Streams. Streams is our new tool for handling log data. This includes ingesting, organizing, parsing, enriching, and setting retention for the data. You will be part of a skilled group of engineers and designers. You will contribute your expertise and learn from others. If you enjoy tackling complex challenges and want to make a meaningful impact on our product, we’d love to hear from you. What You Will Be Doing Design and implement intuitive user interface components that enhance user commitment, using TypeScript, React, and Node.js. Integrate front-end elements seamlessly with back-end services to ensure a smooth user experience. Conduct usability testing and gather user feedback to drive continuous improvements. Own complex, loosely-defined problems end-to-end: shape the approach, split the work if needed, make the key technical decisions, and deliver. Lead discussions on architecture and system design. During these discussions, consider trade-offs. Also, think about backwards compatibility, performance, and

Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale — unleashing the potential of businesses and people. The Elastic Search AI Platform, used by more than 50% of the Fortune 500, brings together the precision of search and the intelligence of AI to enable everyone to accelerate the results that matter. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. What is The Role We're looking for a Senior Software Engineer to join our Streams UI team, where you'll have the chance to shape and enhance our user interface, making it more intuitive and engaging for our users. In this role, you'll work on Fleet. Fleet is the central management experience for Elastic Agent in Kibana. You'll also work on Streams. Streams is our new tool for handling log data. This includes ingesting, organizing, parsing, enriching, and setting retention for the data. You will be part of a skilled group of engineers and designers. You will contribute your expertise and learn from others. If you enjoy tackling complex challenges and want to make a meaningful impact on our product, we’d love to hear from you. What You Will Be Doing Design and implement intuitive user interface components that enhance user commitment, using TypeScript, React, and Node.js. Integrate front-end elements seamlessly with back-end services to ensure a smooth user experience. Conduct usability testing and gather user feedback to drive continuous improvements. Own complex, loosely-defined problems end-to-end: shape the approach, split the work if needed, make the key technical decisions, and deliver. Lead discussions on architecture and system design. During these discussions, consider trade-offs. Also, think about backwards compatibility, performance, and