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Experience Level
Senior
Qualifications
Proven experience in Node.js and backend development. Strong understanding of distributed systems and performance optimization. Ability to design and implement scalable APIs. Experience working in a remote environment and collaborating with cross-functional teams.
About the job
Jobgether is hiring a Senior Node.js Backend Developer based in Finland to join a partner company. This role centers on building secure, scalable backend systems that power digital finance services used around the world. The team operates in a remote-first environment and encourages autonomy, ownership, and new ideas.
Key Responsibilities
Design and implement backend architecture for APIs and mission-critical services
Develop distributed systems supporting global financial products
Prioritize performance optimization and system reliability
Collaborate with engineers located in different regions
Work with new technologies and broaden technical skills
What Makes a Good Fit
Strong experience with Node.js and backend development
Interest in backend infrastructure and distributed systems
Comfort with autonomy and taking ownership of projects
Ability to work effectively in a remote, high-performing team
Location
This position is remote-first, with the role based in Finland.
About Jobgether
Jobgether connects job seekers with innovative companies, fostering an environment of growth and collaboration. We prioritize a culture that values autonomy and encourages continuous learning.
Jobgether is hiring a Senior Node.js Backend Developer based in Finland to join a partner company. This role centers on building secure, scalable backend systems that power digital finance services used around the world. The team operates in a remote-first environment and encourages autonomy, ownership, and new ideas. Key Responsibilities Design and implemen…
Role Overview Unity Technologies is looking for a Software Engineer to join the Unity Services Foundation team in Helsinki, Finland. This role focuses on improving Web API development and optimizing core API Gateways that process over a billion calls every day. The Gateway platform supports essential features such as authentication, authorization, and rate limiting, making it easier for service teams to publish and operate APIs at scale while maintaining high standards for quality and consistency across all Unity services. What You Will Do Develop and enhance features that address API management challenges Support the platform strategy that shapes how Unity services are delivered and maintained Work on backend and infrastructure projects critical to Unity’s products Collaborate with senior backend developers and the product team to deliver reliable and secure solutions What Matters Here Code maintainability and long-term reliability Performance and resiliency of backend systems Security across all API interactions Delivering a strong developer experience for internal teams This position offers the chance to influence the way Unity’s customers interact with its products by building the foundation for consistent, scalable, and secure APIs.
Join Our Award-Winning Tech Community as a Lead Software Engineer in Helsinki! Your Role: As a Lead Software Engineer at Reaktor, you will navigate the entire software development lifecycle, empower your team to excel, and drive impactful results. Your Daily Responsibilities Include:Acting as the primary technical contact for clients, addressing inquiries and ensuring delivery quality.Collaborating with the client's technical and business teams to foster effective communication and guarantee high-quality outcomes.Implementing new features involving modifications to front-end applications, back-end servers, and databases, while understanding necessary infrastructural support.Enhancing team workflows by encouraging optimal processes and balancing work-life dynamics among team members.Cultivating strong client relationships to facilitate ongoing collaboration.Guiding your team in adopting agile methodologies seamlessly. Your Profile: You are a seasoned developer who thrives on technical challenges and excels at providing clarity in uncertain situations.To Succeed in This Role, You Should Have:Extensive experience across various domains (back-end, front-end, and operations). Typically, a minimum of eight years of relevant experience is desired.A strong grasp of agile project management principles.Prior experience in both team leadership and consulting roles.Proven ability to engage with multiple client stakeholders to address complex issues.Familiarity with at least one popular server-side programming language. Currently, many of our projects utilize TypeScript/JavaScript and Node.js; however, Java, Scala, Kotlin, Clojure, and Python are also in our technology stack.Strong proficiency in at least one client-side language and framework, with TypeScript/JavaScript and React commonly used for web apps, and Swift, Java, Scala, Kotlin, or React Native for mobile applications.Relevant skills to create new backend services and refine CI/CD pipelines as project needs dictate.Knowledge of databases, such as PostgreSQL.
Aiven is seeking a Staff Software Engineer focused on platform development in Helsinki, Finland. This position centers on designing and building scalable solutions that support Aiven’s cloud services. Role overview This engineer will work closely with cross-functional teams to strengthen the platform’s performance, reliability, and security. The work includes both designing new features and improving existing systems to meet the demands of a growing cloud infrastructure. What you will do Design and implement scalable solutions for Aiven’s platform Collaborate with teams across engineering, product, and operations Focus on maintaining high standards for performance, reliability, and security Requirements Strong background in software engineering Experience working on complex challenges in platform or cloud development Comfort working in a fast-paced setting
Join Mapbox, the premier real-time location platform designed for the next generation of location-aware businesses. We empower organizations with a comprehensive suite of tools to facilitate the navigation of people, packages, and vehicles globally. Over 4 million developers trust Mapbox for its flexibility, security, and commitment to privacy compliance. Our innovative applications, data, SDKs, and APIs allow businesses to craft unique and immersive experiences that captivate their users.What We DoOur team specializes in the Directions and Logistics APIs, managing everything from individual driver route requests to the intricate logistics optimization utilized by major delivery firms. With millions of requests processed daily under stringent latency standards, our work is both challenging and immensely gratifying. Given the vital nature of our services, we uphold a responsible on-call rotation and prioritize system stability while minimizing alarm noise. With an exciting roadmap set for 2026, now is the perfect time to join us on this remarkable journey!As AI becomes integral to modern engineering workflows, we seek engineers who can seamlessly incorporate AI into design, development, and decision-making processes. Our interview process will explore how you leverage AI in your engineering practices.Your RoleAs a Senior Engineer, you will take charge of designing, developing, and maintaining critical components of our routing services. In this role, you will:Design and deploy scalable services for our API and routing engine tiers, adhering to best practices for resilience and observability.Enhance services that manage the consumption and storage of routing data.Lead the design, development, and testing of Mapbox tools.Create internal tools and automations that enhance the engineering experience.Develop quality metrics and analytics for our services.Conduct experiments to assess the quality, reliability, and capacity needs of our navigation products.Engage in end-to-end feature implementation alongside the navigation team; participate in code reviews, design documentation, feature releases, and on-call rotation.Collaborate with product owners, sales engineers, and management to guide future product strategies.
Join our dynamic global team of over 400 professionals dedicated to advancing open-source technology and multi-cloud solutions. At Aiven, we empower developers, builders, and creators to bring their visions to life swiftly and seamlessly through our innovative cloud data platform that offers easy access to open-source databases, search capabilities, streaming, and application infrastructure. The Role: We are seeking a talented Senior Software Engineer to enhance our cloud operations platform by transforming top open-source technologies into seamless cloud services. In this role, you will contribute to the development and optimization of PostgreSQL services, focusing on scalability and reliability. Our ethos revolves around automation to eliminate repetitive tasks across our processes. Our backend systems predominantly utilize Python, with elements of Java, Go, and C. What You'll Do: Develop high-quality, maintainable code, delivering robust features. Engage in technical discussions and conduct pull request reviews. Participate in technical planning and manage the project backlog. Assist in troubleshooting and resolving client issues. Mentor junior engineers and foster their professional development. Automate processes to enhance operational efficiency. Enhance the scalability and reliability of PostgreSQL services. What We're Looking For: We encourage you to apply even if your background does not perfectly match our requirements; we are committed to investing in the professional growth of our team members. Must Have: Proficiency in Python programming. Over 5 years of experience with one or more of the following databases: PostgreSQL, MySQL, MariaDB, SQL Server, OracleDB. Knowledge of backup solutions and strategies. Strong understanding of Linux operating systems. Experience with automated testing frameworks. Familiarity with distributed systems. Proven track record in performance optimization, bug fixing, and addressing security vulnerabilities. Fluent in English, both written and verbal. Nice to Have: Understanding of software and network security. Experience with infrastructure as code practices. Familiarity with cloud DBAAS production environments. Experience in production software environments. Excited to Join Us? If you believe Aiven is the right fit for you, we invite you to apply and become part of our innovative team!
At Mapbox, we lead the way in real-time location solutions, empowering a new generation of location-aware businesses. Our platform provides organizations with a comprehensive suite of tools to facilitate the navigation of individuals, packages, and vehicles worldwide. Over 4 million developers trust Mapbox for its flexibility, security, and adherence to privacy standards. With our applications, data, SDKs, and APIs, businesses create tailored and engaging experiences that resonate with their users.What We DoThe Maps API team focuses on building and sustaining the infrastructure and applications that generate and distribute Mapbox maps. Thousands of clients depend on our services to manage billions of daily requests, scale seamlessly during global events, and enable designers, developers, and analysts to craft and share innovative maps.Delivering maps requires a constantly evolving model of the world, adept at accommodating various edge cases such as writing systems, fonts, local regulations, and global boundary disputes.Our team upholds the highest-traffic read APIs at Mapbox, alongside distributed ETL pipelines utilized by both internal and external clients to transform data into maps. We’re committed to developing novel methods for visualizing location data.As AI becomes increasingly integrated into engineering workflows, we seek engineers who can thoughtfully weave AI into design, development, and decision-making processes. Expect discussions during the interview process about your use of AI in engineering.
Join Reaktor's award-winning technology community as a Senior Full Stack Software Engineer in Helsinki.Do you thrive in a low-hierarchy environment and have a passion for addressing human challenges through innovative software solutions? If so, we want to hear from you!Your Role:As a Senior Full Stack Software Engineer, you will be at the forefront of the software development lifecycle, bringing expertise in both front-end and back-end technologies, as well as infrastructure management.Key Responsibilities:Collaborate with clients' tech and business teams to select optimal technologies tailored to their requirements.Develop and implement new features encompassing changes to frontend applications, backend servers, and databases, including infrastructure modifications.Provide world-class technical guidance to clients and team members.Engage in software development tasks such as debugging, designing, and contributing to architectural decisions.Your Profile:We are seeking a curious and versatile developer who is proficient in both backend and frontend development and appreciates the significance of infrastructure.Required Qualifications:Proven experience across various software development domains (backend, frontend, operations, and consulting).While we do not enforce a strict years-of-experience requirement, the skills we seek typically take time to develop.Experience in at least one popular server-side programming language (TypeScript/JavaScript and Node.js preferred, but Java/Scala/Kotlin, Clojure, and Python are also relevant).Strong proficiency in at least one client-side language and framework, with a preference for TypeScript/JavaScript and React for web applications, and Swift, Java/Scala/Kotlin, or TypeScript/JavaScript React-native for mobile projects.Ability to design new backend services and establish CI/CD pipelines as necessary.Foundational knowledge of DevOps practices, including Continuous Integration, automated deployment, and test automation.Familiarity with databases such as PostgreSQL.
Join Mapbox, the premier real-time location platform empowering a new generation of location-aware businesses. Our unique suite of tools enables organizations to facilitate seamless navigation for people, packages, and vehicles across the globe. With over 4 million registered developers, Mapbox stands out for its flexibility, security, and commitment to privacy compliance. Organizations leverage Mapbox’s innovative applications, data, SDKs, and APIs to create tailor-made and immersive experiences that captivate their customers.What We DoOur team is dedicated to constructing the mission-critical engine that drives real-time navigation for Mapbox's largest global clients. We handle petabytes of geospatial data through a sophisticated combination of high-scale backend services, data pipelines, and AI workflows to detect, validate, and communicate live updates on road conditions—from traffic jams to road closures. The intelligent AI agents we develop enhance our core algorithms, ensuring that Mapbox maps reflect the dynamic nature of the roads and enable millions of drivers to reach their destinations optimally.As part of the Incidents team, engineers play a vital role in managing the complete incident lifecycle:Intelligent Ingestion and Detection: Create automated AI agents to gather data and identify closures using proprietary Mapbox signals.Validation and Conflation: Utilize algorithms to invalidate outdated data and consolidate duplicate reports into a single, high-fidelity source of truth.Strategic Delivery: Develop systems that make this data accessible across the entire Mapbox ecosystem.AI Collaboration: Collaborate with the MapGPT team to enhance our Feedback Agent, allowing us to refine the map using real-time customer insights.As AI becomes increasingly integrated into engineering workflows, we value engineers who can thoughtfully incorporate AI into design, development, and decision-making processes. Our interview process will include discussions on your use of AI in your engineering workflow.What You Will DoAs a Software Development Engineer II on the Incidents team, you can look forward to:Working collaboratively with your team to identify and define well-scoped tasks.Participating in the development, testing, and deployment of incident management software.Engaging in code reviews and contributing to team discussions on best practices.Utilizing cutting-edge technologies to solve complex challenges in real-time data processing.
jobgether is seeking a Senior Software Engineer to focus on AI SaaS solutions. This role centers on designing, building, and maintaining software applications that use artificial intelligence to improve SaaS products. Role overview The Senior Software Engineer will work closely with colleagues from different disciplines to develop and refine software solutions. The position involves hands-on development as well as ensuring that established software development practices are upheld throughout the project lifecycle. What you will do Design and implement software applications that integrate AI features for SaaS products Maintain and improve existing applications to enhance performance and reliability Collaborate with cross-functional teams to deliver high-quality solutions Promote and follow best practices in software development Requirements Extensive experience in software engineering, with a focus on AI and SaaS Strong skills in designing, developing, and maintaining software applications Ability to work effectively with teams from multiple disciplines This position is based in Finland.
Role overview Mozilla seeks a Senior Software Engineer to help strengthen engineering workflow and continuous integration systems. This remote position is based in Finland and centers on enhancing the tools and processes that underpin software development throughout the company. What you will do Work closely with a talented team to design, build, and improve systems that make engineering workflows more efficient. Take part in developing and maintaining solutions for continuous integration. Contribute to Mozilla’s mission by supporting the delivery of reliable, high-quality software.
At Mapbox, we are revolutionizing the real-time location platform for the next generation of location-aware businesses. Our unique suite of tools empowers organizations to enhance the navigation of people, packages, and vehicles globally. With over 4 million developers choosing Mapbox, our platform stands out for its flexibility, robust security, and compliance with privacy standards. Companies leverage our applications, data, SDKs, and APIs to craft bespoke and immersive customer experiences.Our MissionData is the cornerstone of all that we do at Mapbox. It underpins every product we deliver, including maps, navigation, and search, providing direct benefits to our clients. The Roads Team is vital in developing comprehensive global road networks, enhancing both visual representations and navigational accuracy.Your RoleAs a Senior Software Data Engineer, you will be instrumental in advancing software technologies for top-tier road features, navigation systems, and high-definition mapping. You will collaborate with a talented, cross-functional team of dedicated professionals who are passionate about their work.In this position, your responsibilities will include:Taking charge of enhancing, scaling, and refining existing data processing pipelines.Designing and developing new data processing pipelines.Collecting and monitoring system performance metrics.Contributing to the conversation and implementation of security best practices.Key QualificationsStrong proficiency in at least one programming language (C++, Python, Scala, or Java).Experience with AWS services (S3, EC2, IAM, EMR, Glue, Athena, Kinesis) or other cloud platforms.Proficient in SQL with a solid understanding of SQL engine fundamentals.In-depth knowledge of distributed computing principles.Familiarity with at least one workflow management tool, such as Airflow, Oozie, or Luigi.Strong analytical skills and the ability to substantiate technical decisions.Creative, resourceful, and an innovative problem solver.Excellent verbal and written communication skills in English.
Join Reaktor’s award-winning technology community as a Full Stack Software Engineer in Helsinki!If you thrive in an environment where you can navigate the entire software development cycle, enjoy tackling complex human-centered challenges, and seek a collaborative, low-hierarchy workplace, you may be the perfect fit for our team.As a Full Stack Software Engineer at Reaktor, you will take on a diverse range of software development responsibilities, covering everything from frontend design to backend production.Your key responsibilities include:Collaborating closely with clients’ technical and business teams to identify and implement the most suitable technologies for their needs.Developing new features that may involve modifications to frontend applications, backend servers, and databases, as well as infrastructure enhancements.Providing exceptional technical expertise to both the client and the team.Engaging in other software development activities, including debugging, design, and architecture creation.The ideal candidate is a curious developer comfortable with both backend and frontend technologies and understands the significance of infrastructure in daily operations.To excel in this role, you’ll need:Experience across various software development modalities, including backend, frontend, ops, and consulting capabilities.No strict requirement for years of experience, but in-depth knowledge typically comes with years of dedication.Proficiency in at least one popular server-side programming language. Many of our current projects utilize TypeScript/JavaScript and Node.js, alongside Java, Scala, Kotlin, Clojure, and Python.Strong familiarity with at least one client-side language and framework, with frequent use of TypeScript/JavaScript and React for web applications, and Swift, Java/Scala/Kotlin, or React Native for mobile applications.Relevant skills to develop new backend services and create CI/CD pipelines as needed.A foundational understanding of DevOps practices, including Continuous Integration (CI), automated deployments, and test automation.Knowledge of databases, such as PostgreSQL.
Role overview Konecranes seeks a Software Engineer - Automation Specialist for its Hyvinkää location. The position centers on creating and improving software that enables automation throughout company operations. Work in this role has a direct effect on the quality and efficiency of Konecranes products and services. What you will do Design and enhance software solutions that drive automation processes Collaborate with colleagues from various departments to deliver dependable software projects Contribute to ongoing automation improvements to support Konecranes' standing in the industry Collaboration and environment This role involves working with cross-functional teams in an organization committed to high standards and sustainability. Konecranes values new ideas and open communication to move projects forward.
About Speechify Speechify builds tools that make information accessible through audio. Users can listen to articles, documents, and books on the go or at their desks. The team focuses on making learning faster and more enjoyable. As a leader in audio information, Speechify continues to grow quickly. Role Overview The Senior Software Engineer, Core Experiences, joins a team responsible for the core services and SDKs that power Speechify’s products across multiple platforms. This position suits engineers who enjoy working where product and infrastructure meet. The work centers on designing reliable APIs and efficient systems that improve how users interact with Speechify. What You Will Do Work with Product Teams to define project scopes, streamline processes for faster customer feedback, and solve integration or UX challenges using Speechify’s cross-platform SDK. Improve existing features by designing efficient abstractions and enhancing algorithms, aiming for faster load times and smarter parsing. Write cloud functions, lightweight backend services, and job tasks, primarily using Kotlin. Location This position is based in Helsinki, Finland.
Why Choose Mozilla?At Mozilla Corporation, a non-profit-backed technology leader, we have been transforming the internet for over 25 years. Our flagship product, Firefox, is a web browser designed with privacy in mind, and we proudly serve over 225 million users worldwide each month. Our commitment to innovation spans various fields including AI, social media, security, and more. Central to our mission is the belief that the internet should be built for people, not corporations.Mozilla Corporation, fully owned by the Mozilla Foundation (a 501(c) non-profit), operates without the constraints of shareholder demands. We work alongside thousands of volunteers globally, crafting and distributing open-source software that empowers users to navigate the internet on their own terms.About the Localization Team and Your Role:The Localization Team is responsible for the essential infrastructure supporting localization across all Mozilla products and services while engaging with our global community of volunteer localizers. As a Senior Software Engineer, you will play a pivotal role in diverse localization projects and technologies—ranging from Pontoon, our Django-based Translation Management System, to open-source libraries like moz-l10n. You will also collaborate on standard developments such as Unicode MessageFormat and internationalization features that enhance user experiences in Firefox and other Mozilla products.In this role, you will participate in architectural discussions and drive feature development within the team. At Mozilla, Senior Engineers are expected to work autonomously on clearly defined projects, collaborate effectively with team members, and significantly contribute to delivering high-quality software that aligns with the team’s objectives and Mozilla’s mission.Your Responsibilities:Enhance and develop Python and JavaScript libraries (such as moz-l10n) and tools that bolster Mozilla’s localization infrastructure.Collaborate with engineers and project managers to ensure seamless localization processes across our platforms.
Oura Health Ltd. seeks a Senior Software Engineer to support the development and enhancement of its health technology platform. This position is hybrid, with work based in Helsinki, Uusimaa. Role overview The Senior Software Engineer will collaborate with colleagues from various disciplines to design and implement software systems. The role involves maintaining and refining features that impact user experience and engagement, while contributing to the evolution of Oura’s health technology products. What you will do Partner with cross-functional teams to design and build software systems Maintain and enhance features that improve user experience and engagement Support the ongoing development of Oura’s health-focused technology
AlphaSense helps many leading companies make informed decisions by providing advanced market intelligence. The platform uses AI to gather insights from a wide range of sources, such as equity research, company filings, event transcripts, expert calls, news articles, trade journals, and proprietary client research. In 2024, AlphaSense acquired Tegus, strengthening its ability to deliver AI-powered market intelligence and deepening its insights for professionals. Today, more than 6,000 enterprise clients, including most S&P 500 companies, rely on AlphaSense. Founded in 2011 and based in New York City, AlphaSense employs over 2,000 people across offices in the U.S., U.K., Finland, India, Singapore, Canada, and Ireland. Role overview The Core Developer Experience (Core DX) team at AlphaSense seeks a Staff Software Engineer in Helsinki, Uusimaa, Finland. This team builds and maintains the internal software development environment for the company’s engineers, aiming to improve productivity by removing obstacles and accelerating feedback during local development. This position focuses on designing and enhancing tools, environments, and workflows that enable a fast, reliable feedback loop for approximately 400 engineers worldwide. What you will do Develop and refine the inner development loop, including daily workflows for writing, building, and testing code. Manage and improve the internal developer platform, self-service tools, and productivity metrics. Collaborate with the Cloud DX team, which handles CI/CD and production infrastructure, to support a seamless software development life cycle. Integrate AI into the software development process, enhancing workflows from code creation to debugging and testing. Ensure new AI-driven enhancements are high quality and can scale safely across the engineering organization. Team focus The Core DX team is responsible for the inner development loop and daily experience of AlphaSense engineers. This includes writing and testing code, managing internal tools, and tracking productivity. While the Core DX team’s work is distinct from the Cloud Platform DX team (which focuses on CI/CD and production infrastructure), close collaboration helps deliver a unified experience for all engineers at AlphaSense.
Join TietoEVRY as a Software Engineer specializing in Microsoft and Azure technologies. In this role, you will be responsible for designing, developing, and deploying innovative software solutions that leverage the full potential of the Azure cloud platform. Collaborate with cross-functional teams to enhance existing applications and contribute to the development of new ones, ensuring they meet high standards of quality and performance.Your expertise will help drive our mission to deliver top-notch IT consulting services to our clients, enabling them to thrive in a digital world.
Jobgether is looking for a Senior Software Engineer with strong DevOps skills and deep experience in Azure. This position is based in Finland and centers on improving cloud infrastructure and deployment workflows. Role overview This role focuses on maintaining and enhancing Azure-based systems. You will work to streamline deployment processes and support the reliability of cloud services. The position calls for a hands-on engineer who can help shape and stabilize the platform. Key responsibilities Enhance and maintain cloud infrastructure using Azure tools and services Streamline and automate deployment pipelines Support high availability and reliability of core systems Requirements Extensive experience with Azure cloud services Strong background in DevOps practices Ability to improve and automate infrastructure and deployments
