Senior Software Developer - AWS & IoT

Finland | Nov. 1, 2026

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Company: Lokki Henkilöstöpalvelut Oy

Country: Finland

Type: Onsite

Employment: Contract

Description: We are looking for an application developer (AWS & IoT) for our client for a public tender. Experience is calculated from the last 10 years. There must be at least 2 projects for each requirement and the minimum duration of each project is 12 months. The experience must be from external customer work. Experience: Application development Experience in at least the following entities in the role of an application developer (or similar): Programming languages, including experience in at least two programming languages (e.g. JavaScript, Python, Java, C#, Ruby, PHP) Principles of software development, including data structures, algorithms and design models Web development, including frontend and backend technologies (e.g. HTML, CSS, React, Angular, Django) Database knowledge, including experience with relational databases (e.g. MySQL, PostgreSQL) and/or non-relational databases (MongoDB, Firebase) Version control, including experience using version control tools (e.g. Git) and code control API integration skills, including experience working with various API integrations (e.g. REST, GraphQL, SOAP and other web-based interfaces) Experience: AWS (Amazon Web Services) Experience in at least the following entities in the role of a senior application developer (or similar): AWS cloud architectures, including experience implementing systems and/or applications in the AWS cloud AWS services, including e.g. EC2, S3, RDS, Lambda, DynamoDB or similar AWS automation and management, including experience using AWS management tools (e.g. CLI, SDK) DevOps development in an AWS environment, including experience implementing Continuous Integration (CI) and Continuous Delivery (CD) in an AWS environment Experience: IoT architectures, MQTT and AWS IoT Core Experience in at least the following entities in the role of a senior application developer (or similar): IoT architectures, including experience in planning and implementing the overall architecture of IoT solutions (devices, connections, data transfer, cloud services, integrations and information security) MQTT protocol, including experience with MQTT-based messaging, broker solutions, planning topic structures, QoS levels, scalability and usage control Solutions implemented with AWS IoT Core Connecting and managing IoT devices, including experience in device provisioning, identification, updates, remote management and lifecycle management Information security in IoT environments, including experience in authentication, encryption, certificates, access rights, information security monitoring and vulnerability management Integrations and data utilization, including experience in integrating IoT data into back-end systems, interfaces, analytics or data warehouses Answer these questions separately with a few sentences and attach them to your application! (Mandatory!) - Does your experience meet the minimum requirements: external customer work from the last 10 years, at least 2 projects from each requirement below, each lasting at least 12 months, and fluent Finnish and English language skills?* - Do you have experience in application development in at least two programming languages (e.g. JavaScript, Python, Java, C#) and software development principles and web development (frontend and backend)?* - Do you have experience with databases (relational and/or non-relational databases), Git and API integrations (REST, GraphQL, SOAP)?* - Do you have experience with systems and applications implemented in the AWS cloud (e.g. EC2, S3, RDS, Lambda, DynamoDB), AWS automation (CLI, SDK) and CI/CD in an AWS environment?* - Do you have experience with IoT architectures, MQTT and AWS IoT Core solutions?* - Do you have experience in managing IoT devices, IoT data security and integrating IoT data into background systems or analytics?* Please apply for the position as soon as possible with an updated CV that clearly shows your relevant skills and experience for the position. Start: December 2026 / January 2027 Contract duration: 12 months Work input: 100% Language: Fluent Finnish and English We offer you: A nice working relationship in a big company. We offer versatile work where every day is different and interesting. We offer a competitive salary that matches your skills. Were you interested? The position will be filled after a suitable person is found even before the end of the application period, so send us your application quickly! However, please also include your salary expectations in the application! For more information about the position, please contact Kimmo Kärsämä, tel. 050 412 7500, kimmo.karsama@lokki.fi Get to know Lokki through our blog and website: Lokki Henkilöstöpalvelut Oy - Your personal personnel consultant at your service We have been operating in the HR sector since 2005 and belong to the Association of HR Companies. Our vision is to offer the best customer experience with our reliable, human-friendly and effortless service all over Finland. Our most important resource is a person, who we know succeeds best in a reliable and encouraging atmosphere. At Lok, you will be supported by our own personnel consultant throughout your employment. At Loki, we believe in partnership, which is achieved as a result of flexible service. Get to know us and our vacancies: . You can also find us on Facebook and Instagram.

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