Senior Backend Software Engineer | Java/Kotlin | Remote

About the RoleWe are seeking an experienced and motivated Senior Backend Engineer (generalist) with a robust background in Java and preferably Kotlin to join our dynamic team. In this remote position, you will play a pivotal role in developing our product from the ground up. Your responsibilities will include integrating with enterprise systems, scraping and…

Senior Java Developer About the OpportunityWe are seeking a Senior Java Developer to join an impactful international project. This position is 100% in Spanish, offered as a contractor role and is fully remote from LATAM. Role ObjectiveTo design, develop, and implement robust and scalable backend solutions in Java, ensuring quality, performance, and adherence to best practices in enterprise environments. Main ResponsibilitiesDevelop and maintain backend applications in JavaDesign and implement RESTful APIsParticipate in architecture design and technical decision-makingApply best practices such as clean code and SOLID principlesConduct unit and integration testingEngage in code reviews and mentorshipCollaborate with teams using agile methodologiesResolve incidents in production environments

Kotlin Software Engineering Consultant (SME) Overview We are on the lookout for a seasoned Kotlin Software Engineering Consultant to act as a Subject Matter Expert (SME) for cutting-edge software development and AI benchmarking initiatives. This role is crucial for creating, documenting, and validating Kotlin-based functionalities that assess and enhance the coding capabilities of large language models (LLMs), especially in Android development contexts. In this position, you will establish the technical benchmarks and functional frameworks for real-world coding assessments, ensuring that all tasks maintain the utmost standards of authenticity, accuracy, and reproducibility. Your contributions will involve assembling datasets and functional structures that reflect the intricacies and logical reasoning characteristic of professional Android engineering. Key Responsibilities 1. Functional Design, Documentation & Benchmark Definition Develop, document, and validate Kotlin-based functionalities for AI benchmarking and software simulation projects. Create thorough functional and technical documentation, detailing feature requirements, system behaviors, and anticipated results. Convert open-ended requirements into tangible, well-defined Android tasks that present real engineering challenges. Ensure every benchmark task is complete, verifiable, and aligned with genuine developer workflows. Maintain organized repositories of Kotlin challenges, categorized by complexity, topic, and type of functionality. 2. Technical Standard Setting, QA & Process Improvement Establish Kotlin-specific quality metrics, benchmarking standards, and evaluation rubrics in accordance with Android production criteria. Create standard operating procedures (SOPs) and quality assurance frameworks that ensure stylistic consistency, idiomatic Kotlin usage, and functional clarity. Conduct thorough quality assurance checks on deliverables, verifying code accuracy, documentation completeness, and adherence to benchmarks. Apply quality principles to uphold dataset and code task evaluation standards. Curate exemplary Kotlin implementations that epitomize benchmark-worthy coding practices. 3. Talent Definition, Vetting & Calibration Collaborate with recruitment and project leaders to define the competencies required for Kotlin contributors. Develop technical assessment frameworks for evaluating Kotlin developers, incorporating practical coding challenges and debugging tasks. Lead calibration sessions with contractors to ensure uniformity and quality across the board.

About TrafileaTrafilea is an innovative Consumer Tech Platform dedicated to fostering transformative brand growth. We are developing an advanced AI Growth Engine that will propel the next generation of consumer brands.With over $1 billion in cumulative revenue, more than 12 million satisfied customers, and a talented workforce of over 500 professionals across 19 countries, we leverage technology, growth marketing, and operational excellence to scale purpose-driven, digitally native brands.We own and operate our own digitally native brands—not an agency—boasting a presence in major retailers like Walmart, Nordstrom, and Amazon, along with a robust global D2C footprint.Why Join Trafilea?We are a tech-driven eCommerce group scaling our own globally recognized DTC brands, while empowering ambitious talent to grow swiftly. We create and scale our own brands. We invest in AI and automation like few others in the eCommerce space. We experiment rapidly, grow swiftly, and support you in doing the same. Be part of a dynamic, diverse, and talented global team. 100% Remote, competitive salary in USD, generous paid time off, and more.Key ResponsibilitiesAs a Senior Backend Engineer, you will be responsible for designing and delivering robust, high-performance systems that are the backbone of our globally cherished DTC brands. Your projects will cover a wide range from core backend components to AI-driven features, with a steadfast focus on scalability, reliability, and speed.If you excel at tackling complex challenges, writing clean and efficient code, and thrive in a fast-paced, product-oriented environment, this is your chance to make a significant global impact.Architect, develop, and enhance backend services using Golang and Node.js to support millions of customers worldwide.Design, create, and maintain REST APIs that facilitate smooth integrations across products, platforms, and teams.Work with both relational and non-relational databases, ensuring optimal data modeling, querying, and performance tuning.Collaborate closely with cross-functional teams (Product, UX, Marketing) to convert business requirements into technical solutions.Implement AWS best practices for scalable deployments, security, and cost efficiency.Engage in sprint planning, estimation, and reviews within our Agile/SCRUM framework.Proactively identify and resolve technical debt, ensuring the stability and performance of our systems.

Canonical, a trailblazer in open-source software solutions, is looking for a Senior Software Engineer to join our Launchpad team. In this pivotal role, you will drive the evolution of our platform, which is essential for managing open-source projects. Your deep knowledge of Linux, web services, and scalable systems will allow you to refine a mature, Python-based architecture that supports major initiatives like Ubuntu. Collaborating with a global team, you will work on enhancing developer workflows and maintaining critical services, ensuring that Launchpad remains a dynamic environment for open-source contributions. This is an exciting opportunity to make a significant impact in the world of software development.

About the RoleAs the Team Lead for our software development team, you will be instrumental in shaping the architecture, development, and delivery of top-tier software solutions. You will guide a talented group of developers, fostering collaboration, driving technical innovation, and ensuring robust delivery outcomes. Your role will blend hands-on coding with team leadership, empowering the team to excel in a dynamic environment.Our Tech StackLanguage: Java 17Frameworks: Spring Boot (Tomcat, Netty), Spring Data, Spring CloudArchitecture: Microservices, REST API, Message QueuesDatabase: MySQL, MyBatis, MongoDBCaching: Redis (AWS ElastiCache), ElasticSearchMessage Queue: RocketMQCloud: Kubernetes, AWSMonitoring: Grafana, Prometheus, Loki, Tempo, AWS CloudWatch, OpenTracingCI/CD: Jenkins, ArgoCDKey ResponsibilitiesLead and mentor a skilled development team across Europe, cultivating a culture of high-performance collaboration.Provide technical guidance and uphold best practices in software development, code quality, and system architecture.Engage in high-level architectural and design discussions for complex software systems.Oversee the entire development lifecycle from requirements gathering to deployment, guaranteeing timely delivery of high-quality solutions.Conduct regular code reviews, offering constructive feedback to enhance team skills and productivity.Manage team performance and support career development initiatives.Promote continuous improvement within development processes, tools, and techniques.Qualifications8+ years of software development experience, particularly in backend technologies (e.g., Java, Node.js, Python, Go, etc.).2+ years in a leadership capacity, with experience in mentoring, performance evaluations, and task allocation.Strong background in software architecture and designing scalable, reliable systems.Proven hands-on experience in backend development, with an emphasis on APIs and microservices.Exceptional communication skills in English, with the ability to manage and collaborate effectively within a diverse remote team.A passion for technology and innovation, coupled with a desire to tackle complex technical challenges.

About RemoteAt Remote, we are addressing one of the most significant challenges modern organizations face—navigating global employment with compliance and ease. Our platform empowers businesses of all sizes to recruit, compensate, and manage international teams seamlessly. Emphasizing our core values and forward-thinking culture, our team is dedicated to tackling ambitious challenges asynchronously across the globe. Our diverse workforce spans six continents (Antarctica is the last frontier!), and every role is fully remote.Innovation is at the heart of our operations, driving us to integrate Automation and AI capabilities into every position.We invite every member of the Remote team to contribute their unique talents, experiences, and cultural insights to help us create a world-class HR platform. If you are energetic, inquisitive, driven, and ambitious, join us in shaping the future of work! Apply today!The PositionYou will collaborate with a team of engineers across Frontend, Backend, SRE, and QA. Our structure includes cross-functional development teams dedicated to specific verticals.This role is available across various teams, and we will determine the specific team during the interview process based on business needs and your preferences.Regardless of the team assignment, you will focus on developing tools, APIs, and integrations for our product offerings.Our backend technology stack includes Elixir and Phoenix, paired with a Postgres database. For the frontend, we utilize React and Next.js. We rely on GitLab for version control, issue tracking, and CI/CD solutions. Our applications are hosted on AWS, and we practice continuous integration for multiple daily deployments.What This Role Offers YouEngaging and impactful challenges—your solutions will enable individuals and businesses to operate globally.A chance to make a significant impact—being in the early stages of our company means your contributions will resonate as we grow.

Join Checkly as a Senior Backend Engineer and become an integral part of our innovative team. We are looking for an individual who is passionate about crafting scalable and efficient backend systems. This role offers the flexibility of remote work, allowing you to collaborate with talented professionals across different time zones (UTC-3 to UTC+3).As a Senior Backend Engineer, you will design, implement, and maintain robust backend services that power our platforms. You will work closely with other engineers, product managers, and designers to deliver high-quality software solutions.

Join Our Engineering TeamAt Cacheflow, we are seeking a talented and driven Senior Backend Engineer to help us build scalable and innovative solutions in the fintech space. As part of our founding team, you will have the unique opportunity to collaborate closely with our CEO and CTO, giving you significant influence over the technology, architecture, and culture of our company.Our Technology StackWe utilize cutting-edge technologies including AWS, Java, React, TypeScript, NodeJS, and Kafka to develop our solutions.

Join Raya as a Senior Backend Engineer, where your passion for backend engineering will be recognized and valued! We are looking for an experienced professional excited to work within a Node.js environment. The ideal candidate will possess over 6 years of progressive experience, showcasing both results and leadership capabilities in their previous roles. This is a pivotal moment for our backend team as we navigate through a phase of significant growth.At Raya, we believe in fostering a culture of learning and collaboration, empowering our team members to lead solutions to challenging problems and evolve into their best selves. You will play a crucial role in supporting our backend initiatives in messaging, connectivity, and location-based mapping projects. A successful candidate will demonstrate diligence in designing scalable software architecture and embrace Raya’s vision of enhancing lives through meaningful, in-person connections.We offer a robust benefits package that includes comprehensive medical and dental coverage, a daily food delivery allowance of $50, equity-based compensation, a vibrant company culture, ample learning opportunities, unlimited vacation, 12 weeks of paid parental leave, and an annual $1,000 travel stipend for personal growth and exploration, reflecting our core values of human connection, empathy, and curiosity.

joinready seeks a Java Backend Developer to join its remote technical team. This position focuses on building backend systems and providing technical support to colleagues. Candidates should be comfortable with hands-on coding and have a solid understanding of backend development principles. What you will do Design and implement backend services using Spring Boot. Handle service discovery and configuration management with Eureka and Config Server. Develop solutions in environments that use OpenShift and Kubernetes (OSE). Apply design patterns like Circuit Breaker and Bulkhead to strengthen system resilience. Write and maintain unit tests with Mockito. Incorporate design patterns and hexagonal architecture into daily work. Assist team members in solving technical challenges. Contribute insights from previous team leadership experience. Requirements Experience with Java backend development and Spring Boot. Familiarity with Eureka, Config Server, OpenShift, and Kubernetes (OSE). Knowledge of design patterns, especially Circuit Breaker and Bulkhead. Ability to write unit tests using Mockito. Understanding of hexagonal architecture. Strong problem-solving skills and a collaborative approach. Background in team leadership is valued.

Twindo is pioneering the transformation of the remodeling, architecture, and interior design sectors through innovative AI and computer vision technologies. Our LiDAR-enabled iPhone and iPad scans generate accurate 3D representations of homes in mere minutes, delivering interactive models with precise measurements. Our proprietary technology converts these scans into detailed, editable as-built files in industry-standard formats. Our groundbreaking technology was showcased during Apple's keynote event when the LiDAR sensor was launched, and we are currently modeling millions of square feet every month.As a globally distributed, virtual-first organization, our team spans across various regions, with significant representation in the US and Europe.We are in search of a Senior Backend Engineer to contribute to the development and maintenance of our internal platform and tools, promoting business scalability and engineering efficiency. Reporting to the Platform Team Lead, this position involves a dynamic blend of foundational backend development and DevOps responsibilities, making it perfect for individuals who thrive on diverse projects. Collaboration with our iOS, Computer Vision, Visualization & Tooling, Web, Infrastructure, and Data engineering teams, as well as other departments, will be crucial.

At Acorns, we are dedicated to supporting the financial well-being of aspiring individuals through innovative micro-investing solutions. Our core values shape our approach to achieving this mission. We lead with heart, making bold decisions, building trust, embracing growth, and finding ways to overcome challenges. We invite you to join us in our commitment to enhancing financial wellness for families everywhere. As a Senior Backend Software Engineer at Acorns, you will play a pivotal role in developing and scaling our essential investment products. This position goes beyond mere execution; you will ensure the technical integrity and evolution of our systems, impacting millions of customers as they build their wealth over time. You will face complex technical challenges, mentor junior engineers, and maintain robust backend infrastructure as we broaden our financial wellness offerings. Our remote-first culture provides you with the flexibility to work from anywhere, with optional access to our office in Irvine, CA.

Why Clipboard Exists:At Clipboard, our mission is to empower individuals to ascend the socioeconomic ladder by transforming their extra time and ambition into meaningful career growth and financial opportunities. Our innovative app-based marketplace connects professionals with workplaces, enabling on-demand shift bookings that benefit both parties.About Clipboard:Clipboard is a rapidly expanding Series C company recognized as a leader in the Long Term Care sector, with plans to diversify into additional areas such as Dental Offices and Schools. As a YC Top Company, our global team of over 700 professionals operates remotely, having achieved profitability since 2022. We facilitate millions of shifts annually across the U.S., serving tens of thousands of professionals. Join us in our mission to further expand our impact. Learn more about our vision on our website here.Your Mission: Innovate, Execute, and Deliver ImpactAs a Backend Software Engineer at Clipboard, you will go beyond writing code—you will design solutions that redefine the connection between healthcare professionals and facilities. Collaborating with product managers, designers, and fellow engineers, you will develop impactful features that address real-world challenges. This is a dynamic and ongoing recruitment effort, as we consistently seek talented software engineers to join our growing team.What You’ll Do: Own the Code, Shape the FutureDeliver High-Quality, Scalable CodeCraft performant backend services utilizing Node/NestJS alongside responsive frontend features using React and TypeScript.Utilize MongoDB, Postgres, and Redis to maintain data integrity and optimize performance at scale.Develop Reusable Components and UtilitiesContribute clean, modular code for our web and mobile applications (Ionic/React, Dart/Flutter).Collaborate with the Developer Experience (DevX) team to enhance tools and libraries that increase productivity and streamline workflows.

About Us: At RelayProtocol, we are a pioneering Series A startup in the crypto space, dedicated to crafting innovative developer tools that facilitate token trading. Our vision is to empower developers in creating next-generation crypto applications by simplifying token integration and enhancing crypto commerce. We proudly support a myriad of crypto enterprises, including industry leaders like Magic Eden and Coinbase, across diverse sectors such as gaming, social interaction, and payments. Our team comprises deeply technical experts proficient in blockchain indexing, protocol design, and cross-chain interoperability. We are on the lookout for a driven Senior Backend Engineer to join our close-knit yet expanding team.Role Overview: We invite a highly skilled and seasoned Senior Backend Engineer with a robust foundation in crypto and/or financial technologies to elevate our team. In this pivotal role, you will be responsible for the design, development, and maintenance of the backend infrastructure for our cross-chain relayer product, ensuring its reliability and performance.Key Responsibilities:Backend Development: Architect, implement, and sustain highly scalable and resilient backend systems tailored for our cross-chain relayer. Optimize performance and responsiveness for large-scale data processing.Crypto Integrations: Engineer and uphold seamless integrations with various blockchain networks and crypto protocols, enhancing our platform's interoperability.

Senior Java Backend Developer (DB2 / Oracle) | Remote LATAM | USD About the OpportunityWe are seeking a Senior Java Backend Developer with a strong focus on database systems (DB2 and Oracle) for a high-demand international project.This position is 100% in Spanish, contractor-based, and fully remote from LATAM. Role ObjectiveTo develop and optimize backend solutions in Java, emphasizing enterprise databases while ensuring performance, data integrity, and scalability. Main ResponsibilitiesDevelop backend applications in Java integrated with DB2 and Oracle.Design and optimize complex SQL queries.Implement database logic (procedures, functions, triggers).Analyze and enhance query performance.Participate in data-oriented architecture design.Ensure data integrity and efficiency.Collaborate with multidisciplinary technical teams.

About RemoteRemote is addressing the most pressing challenge for modern organizations—managing global employment compliantly and effortlessly. We empower businesses of all sizes to hire, compensate, and oversee international teams seamlessly. With a focus on innovation and a forward-thinking culture, our dedicated team tackles ambitious problems asynchronously, spanning six continents (we're just missing Antarctica!). All of our roles are fully remote.Innovation is one of our core values, and we have integrated automation and AI capabilities into every role.We invite every member of the Remote team to contribute their skills, experiences, and cultures to help us develop a world-class HR platform. If you are enthusiastic, inquisitive, driven, and ambitious, we encourage you to apply and help shape the future of work!The PositionYou will join a collaborative team of engineers specializing in Frontend, Backend, SRE, and QA, organized into cross-functional development teams dedicated to specific verticals.This position is open across various teams, and we will determine the specific team you will join during the interview process based on business needs and your preferences.Regardless of the specific team, you will focus on developing tools, APIs, and integrations for one of our products.Our backend utilizes Elixir and Phoenix, with a Postgres database. We employ React and Next.js for our frontend development. GitLab serves as our version control and CI/CD solution. Our applications are hosted on AWS, and we rely entirely on CI for deployments, deploying multiple times daily. Check out our Engineering Rulebook for more details.What This Role Offers YouEngaging and meaningful challenges—solving these will enable individuals and businesses to operate in any country worldwide.The chance to create a significant impact within the company—as we are still early in our journey, every change you implement today will have a multiplier effect as the company grows.Numerous opportunities for personal and professional growth.

Remote builds a platform that helps organizations manage global employment, making it easier for businesses to recruit, pay, and oversee international teams. The company’s fully remote structure brings together team members from six continents, each contributing unique perspectives to the ongoing development of Remote’s HR platform. Automation and AI are woven into daily work, supporting efficient and compliant operations. Role overview The Senior Backend Engineer joins a cross-functional group that includes Frontend, Backend, SRE, and QA specialists. Teams are organized by product vertical, and the specific assignment will be determined during the interview process based on both business needs and personal interests. The main focus of this role is building tools, APIs, and integrations for one of Remote’s core products. Key technologies Elixir and Phoenix for backend development Postgres as the primary database React and Next.js on the frontend GitLab for version control and CI/CD AWS for hosting Continuous integration enables frequent deployments throughout the day. For more detail on engineering practices, see the Engineering Rulebook. What this job can offer Challenging projects that support global collaboration between businesses and individuals Opportunities to make a direct impact as the company grows A supportive and flexible environment that values both personal and professional growth Location This is a fully remote position open to candidates anywhere in the world.

About RemoteRemote is tackling one of the most pressing challenges for modern organizations – navigating global employment compliance effortlessly. We empower businesses of all sizes to hire, compensate, and manage global teams seamlessly. Guided by our core values and a forward-thinking work culture, our team is dedicated to solving ambitious problems asynchronously from around the globe. You can find Remoters working from six continents (Antarctica is the final frontier!), and all of our job openings are fully remote.Innovation is at the heart of our values, and we have integrated Automation and AI capabilities into the requirements for every role.We invite every member of the Remote team to contribute their unique talents, experiences, and cultures to help us create a best-in-class HR platform. If you are dynamic, inquisitive, driven, and ambitious, we encourage you to join us and shape the future of work! Apply today!The RoleYou will be part of a diverse team of engineers specializing in Frontend, Backend, SRE, and QA, organized into cross-functional development teams focused on specific verticals.This position is available for multiple teams, and we will determine the exact team you will join during the interview process based on business requirements and your preferences.Regardless of the specific team, you will be responsible for developing tools, APIs, and integrations for one of our products.Our backend technology stack includes Elixir and Phoenix, supported by a Postgres database. We utilize React and Next.js for our frontend development. GitLab serves as our version control and CI/CD tool, while our applications are hosted on AWS. We rely on continuous integration for our deployments, allowing multiple deployments each day. You can explore our Engineering Rulebook for further insights.What You Can Expect from This RoleEngaging and meaningful challenges that empower individuals and businesses to operate globally.An opportunity to significantly influence our business as we are still early in our journey, meaning your contributions will have a lasting impact as the company grows.A great deal of flexibility in your work environment.

About RemoteAt Remote, we are addressing one of the most significant challenges faced by modern organizations: navigating global employment compliantly and effortlessly. Our platform empowers businesses of all sizes to hire, compensate, and manage international teams seamlessly. Guided by our core values and a forward-thinking work culture, our devoted team tackles ambitious challenges asynchronously across the globe. We proudly have team members working from all corners of the world, with positions that are fully remote.Innovation is at the heart of what we do, and we integrate Automation and AI capabilities into every role.We invite every member of the Remote team to share their unique talents, experiences, and cultural backgrounds to help us build a world-class HR platform. If you are driven, inquisitive, and ambitious, join us in shaping the future of work! Apply now!The PositionAs a Senior Backend Engineer, you will collaborate with a team of talented engineers across Frontend, Backend, SRE, and QA. We operate in cross-functional development teams dedicated to specific verticals.This role is open to several teams, and we will determine your specific team during the interview process based on business needs and your interests.No matter the team, you will be instrumental in developing tools, APIs, and integrations for our products.Our backend stack is powered by Elixir and Phoenix, with a Postgres database. For our frontend, we utilize React and Next.js. GitLab serves as our version control, issue tracking, and CI/CD tool, and we deploy our applications on AWS, relying on CI for multiple daily deployments.What This Job Offers YouEngaging and impactful challenges that enhance the ability for individuals and businesses to thrive globally.A chance to make a substantial impact within the organization—being in the early stages of our journey means that your contributions will resonate significantly as our company expands.