Staff Engineer (gn) - Data & AI Focus

Low Noise Factory AB

Introduction Ever dreamed of working for a trailblazing company crafting the coolest high-tech parts on the planet? Imagine being part of an environment that heavily invests in creating a one-of-a-kind workspace for its team. Picture a melting pot of diversity and unmatched expertise that you won't find anywhere else. Intrigued? Keep reading to discover how you can join our extraordinary team! About Low Noise Factory Low Noise Factory (LNF) designs and produces the world’s best low noise microwave amplifiers. These amplifiers are used near absolute zero –cryogenic– temperatures for space exploration, quantum computing, radio astronomy, and for various ground-breaking scientific endeavors where extreme sensitivity is paramount. Our amplifiers help receive signals from the most distant man-made object from Earth, the Voyager 1 space probe, help read quantum states in the fastest quantum computers. Low Noise Factory’s state-of-the-art amplifiers are far ahead of the competition. We invest heavily in research and collaborate closely with academic and scientific communities to keep advancing our technology further and further. Our success is the result of passion for science and precision, advanced by devotion and curiosity. As explorers on the technological frontier, our aim is to keep making the impossible possible. We do everything from basic research to product development, production and testing. In our 1500 sqm facility in Gothenburg we have a state-of-the-art laboratory with electronics assembly all the way to high frequency cryogenic testing. In addition, we have access to advanced cleanrooms where we develop and produce our semiconductor circuits. LNF has 25 employees with a background from 15 different countries. Job description and responsibilities We are currently looking to expand our R&D department with a Staff Engineer. In this role you will be working closely on the different stages of our products with strong cross-department responsibilities. We are looking for individuals with a broader profile and a solid background in microwave engineering. Additional relevant skills are highly regarded assets for the position. We welcome applications from experienced professionals as well as new graduates with the relevant background. Your responsibilities will be varied and tailored to your expertise and product needs. The main activities will revolve around new product development, device characterization, and product support. You are expected to actively contribute to a wide range of aspects of our products and be a bridge between different parts of the organization and other stakeholders. A part of your time will also be dedicated to customer communication, problem identification, and product repair, providing valuable insights into field usage of our products and understanding of how to build and service them. Some of the possible tasks within this role include: Semiconductor devices Device evaluation Reliability testing Transistor modeling Product development Design of new products such as LNAs, MMICs, PCB boards, and RF modules Application engineering Measurement Verification and validation Test system improvement and customization Data extraction and analysis Requirements and qualifications M.Sc. or B.Sc. degree in electrical engineering, microwave and wireless, nanotechnology/semiconductor processing, or a similar field. Proficient in written and spoken English. Solid knowledge of RF and microwave engineering. Broad interest in different aspects of the product lifecycle. Attentive to details, with a problem-solving and team-player attitude. Valuable additional skills Experience with RF design tools such as Microwave Office, HFSS, or others. Experience in assembly, such as soldering and bonding. Hands-on experience with RF measurement equipment, such as VNA. Experience in mechanical CAD design. Interest in end-to-end design, from simulation to productization. Experience in customer relations and communication. Experience with cryogenic equipment and/or cleanroom environments. Benefits and terms Fulltime 40h/week Flexible work hours 30 days’ vacation per year Occupational pension Generous bonus system Health maintenance benefit (Friskvårdsbidrag) Private medical treatment insurance Food benefit Workplace The position is full time and located at the Low Noise Factory main office at Nellickevägen 24, Gothenburg, Sweden. How to apply Send your application to career@lownoisefactory.com. Last day of application: September 30, 2026.

Mongodb

We are seeking a Staff engineer to design, build, and operate the internal and external Observability stack for the MongoDB platform. Tens of thousands of customers depend on our Observability stack to monitor their database clusters and to generate actionable alerts to safeguard critical workloads. This is an opportunity to join a team that is responsible for all Observability systems that support metrics, metric visualization, logs, traces, and alerts for MongoDB. We are looking for engineers with high standards, and experience in setting direction and technical leadership for large engineering teams in designing and operating complex distributed systems, with strict SLO on security, durability, availability and performance.   As MongoDB Atlas and its supporting infrastructure continue to experience rapid growth, the demand for high-cardinality observability data for internal and external use cases means we need to continually innovate and scale our systems to the next level. For example, MongoDB Observability systems need to handle 10’s of billions of metrics time series, all whilst processing petabytes of logs, traces, and events. Our stack includes VictoriaMetrics, Splunk, Flink, WarpStream/Kafka, Java, Golang Fluentbit. In addition to owning critical components of our observability infrastructure, as a Staff engineer on the team, you’ll also work closely with other SWE, Product and SRE teams to promote and implement best practices in instrumenting and monitoring their services. This is a highly collaborative role, and you will get to own some of the most relied upon internal infrastructure at Mongo. Our team champions a strong culture of inclusivity, diversity, and collaboration. If you want to be a deeply technical leader on a collaborative team that applies low-level systems expertise to build the foundational infrastructure of a popular database, join us! Let’s build a faster, more reliable, and exceptionally observable database system together. We are looking to speak to candidates who are based in Dublin for our hybrid working model. CANDIDATE PROFILE * Solving complex problems at scale, and to high standards, excites you * Minimum 10 years of experience in designing, programming, debugging, and tuning distributed and/or highly concurrent C/C++/Java/Rust mission critical software systems * Experience running latency sensitive, high throughput systems * Strong systems fundamentals, including multi-threaded programming, performance profiling, and expert-level programming * Familiarity with database internals or building core components for data processing systems * (Nice to have) Indexing or database performance tuning experience  * Familiarity with observability ecosystem and best practices * Excellent verbal and written technical communication skills and a strong desire to collaborate with colleagues and mentor engineers * Excellent time and project management skills including the ability to make realistic assessments of project cost and complexity * Has a good understanding of information security management RESPONSIBILITIES * Help build and architect systems for the mission-critical observability platform, leading the architecture and implementation of components that drive performance, scalability, cost-efficiency, and resiliency * Design and implement observability improvements that enable MongoDB engineers and customers to quickly and accurately diagnose the root cause of production issues * Handle production customer escalations from Technical Support team and coach teammates to do the same * Write production-ready database code, improve the existing code, and mentor their team to write higher quality code * Own areas of code that the Observability Team maintains, ensuring it achieves a high standard for quality (including security, durability, availability, and performance) and maintainability * Diagnose test failures, identify bugs in existing code, fix them, and prevent bugs from being introduced in new code * Investigate the performance impact of code changes that may cause software performance regressions * Interview candidates for advanced software engineering positions * Develop and maintain expertise on cutting edge database, and observability developments from industry and academia * Lead development and project management of some of the larger projects across the company * Collaborate with stakeholders and engineering teams across the company to jointly work on large initiatives * Advise Product Management on technical product direction, engineering complexity and inter-project dependencies * Collaborate with Product Management and Engineering leadership to define product roadmaps * Champion and improve unit and integration tests to demonstrate correctness * Work with customers and support engineers to fix issues and become part of our on-call rotation  SUCCESS MEASURES * In the first month, you will have understood the high level architecture of MongoDB observability, and fixed a few bugs * In three months, you will have contributed to the development of a project slated for the next major release of MongoDB, and diagnosed and fixed a few customer or testing-reported issues * In six months, you will have taken on code review responsibilities and are involved in reviewing the design for new features * In twelve months, you will be leading the development of new features and initiatives, helping to mentor engineers on the team, and using your experience to drive the long-term technical roadmap of the Observability Team ABOUT MONGODB MongoDB is built for change, empowering our customers and our people to innovate at the speed of the market. We have redefined the data platform for the AI era, enabling builders to create, transform, and disrupt industries with software. MongoDB’s unified data platform, the most widely available, globally distributed data platform on the market, helps organizations modernize legacy workloads, embrace innovation, and unleash AI. Our cloud-native platform, MongoDB Atlas, is the only globally distributed, multi-cloud data platform and is available across AWS, Google Cloud, and Microsoft Azure. With offices worldwide and over 67,000 customers, including 75% of the Fortune 100 and AI-native startups, relying on MongoDB for their most important applications, we’re powering the next era of software. Our compass at MongoDB is our Leadership Commitment, guiding how and why we make decisions, show up for each other, and win. It’s what makes us MongoDB.  To drive the personal growth and business impact of our employees, we’re committed to developing a supportive and enriching culture for everyone. From employee affinity groups, to fertility assistance and a generous parental leave policy, we value our employees’ wellbeing and want to support them along every step of their professional and personal journeys. Learn more about what it’s like to work at MongoDB, and help us make an impact on the world! MongoDB is committed to providing any necessary accommodations for individuals with disabilities within our application and interview process. To request an accommodation due to a disability, please inform your recruiter. MongoDB is an equal opportunities employer. Req ID: 1273361935

Mongodb

We are seeking a Staff engineer to design, build, and operate the internal and external Observability stack for the MongoDB platform. Tens of thousands of customers depend on our Observability stack to monitor their database clusters and to generate actionable alerts to safeguard critical workloads. This is an opportunity to join a team that is responsible for all Observability systems that support metrics, metric visualization, logs, traces, and alerts for MongoDB. We are looking for engineers with high standards, and experience in setting direction and technical leadership for large engineering teams in designing and operating complex distributed systems, with strict SLO on security, durability, availability and performance.   As MongoDB Atlas and its supporting infrastructure continue to experience rapid growth, the demand for high-cardinality observability data for internal and external use cases means we need to continually innovate and scale our systems to the next level. For example, MongoDB Observability systems need to handle 10’s of billions of metrics time series, all whilst processing petabytes of logs, traces, and events. Our stack includes VictoriaMetrics, Splunk, Flink, WarpStream/Kafka, Java, Golang Fluentbit. In addition to owning critical components of our observability infrastructure, as a Staff engineer on the team, you’ll also work closely with other SWE, Product and SRE teams to promote and implement best practices in instrumenting and monitoring their services. This is a highly collaborative role, and you will get to own some of the most relied upon internal infrastructure at Mongo. Our team champions a strong culture of inclusivity, diversity, and collaboration. If you want to be a deeply technical leader on a collaborative team that applies low-level systems expertise to build the foundational infrastructure of a popular database, join us! Let’s build a faster, more reliable, and exceptionally observable database system together. We are looking to speak to candidates who are based in Cork for our hybrid working model. CANDIDATE PROFILE * Solving complex problems at scale, and to high standards, excites you * Minimum 10 years of experience in designing, programming, debugging, and tuning distributed and/or highly concurrent C/C++/Java/Rust mission critical software systems * Experience running latency sensitive, high throughput systems * Strong systems fundamentals, including multi-threaded programming, performance profiling, and expert-level programming * Familiarity with database internals or building core components for data processing systems * (Nice to have) Indexing or database performance tuning experience  * Familiarity with observability ecosystem and best practices * Excellent verbal and written technical communication skills and a strong desire to collaborate with colleagues and mentor engineers * Excellent time and project management skills including the ability to make realistic assessments of project cost and complexity * Has a good understanding of information security management RESPONSIBILITIES * Help build and architect systems for the mission-critical observability platform, leading the architecture and implementation of components that drive performance, scalability, cost-efficiency, and resiliency * Design and implement observability improvements that enable MongoDB engineers and customers to quickly and accurately diagnose the root cause of production issues * Handle production customer escalations from Technical Support team and coach teammates to do the same * Write production-ready database code, improve the existing code, and mentor their team to write higher quality code * Own areas of code that the Observability Team maintains, ensuring it achieves a high standard for quality (including security, durability, availability, and performance) and maintainability * Diagnose test failures, identify bugs in existing code, fix them, and prevent bugs from being introduced in new code * Investigate the performance impact of code changes that may cause software performance regressions * Interview candidates for advanced software engineering positions * Develop and maintain expertise on cutting edge database, and observability developments from industry and academia * Lead development and project management of some of the larger projects across the company * Collaborate with stakeholders and engineering teams across the company to jointly work on large initiatives * Advise Product Management on technical product direction, engineering complexity and inter-project dependencies * Collaborate with Product Management and Engineering leadership to define product roadmaps * Champion and improve unit and integration tests to demonstrate correctness * Work with customers and support engineers to fix issues and become part of our on-call rotation  SUCCESS MEASURES * In the first month, you will have understood the high level architecture of MongoDB observability, and fixed a few bugs * In three months, you will have contributed to the development of a project slated for the next major release of MongoDB, and diagnosed and fixed a few customer or testing-reported issues * In six months, you will have taken on code review responsibilities and are involved in reviewing the design for new features * In twelve months, you will be leading the development of new features and initiatives, helping to mentor engineers on the team, and using your experience to drive the long-term technical roadmap of the Observability Team ABOUT MONGODB MongoDB is built for change, empowering our customers and our people to innovate at the speed of the market. We have redefined the data platform for the AI era, enabling builders to create, transform, and disrupt industries with software. MongoDB’s unified data platform, the most widely available, globally distributed data platform on the market, helps organizations modernize legacy workloads, embrace innovation, and unleash AI. Our cloud-native platform, MongoDB Atlas, is the only globally distributed, multi-cloud data platform and is available across AWS, Google Cloud, and Microsoft Azure. With offices worldwide and over 67,000 customers, including 75% of the Fortune 100 and AI-native startups, relying on MongoDB for their most important applications, we’re powering the next era of software. Our compass at MongoDB is our Leadership Commitment, guiding how and why we make decisions, show up for each other, and win. It’s what makes us MongoDB.  To drive the personal growth and business impact of our employees, we’re committed to developing a supportive and enriching culture for everyone. From employee affinity groups, to fertility assistance and a generous parental leave policy, we value our employees’ wellbeing and want to support them along every step of their professional and personal journeys. Learn more about what it’s like to work at MongoDB, and help us make an impact on the world! MongoDB is committed to providing any necessary accommodations for individuals with disabilities within our application and interview process. To request an accommodation due to a disability, please inform your recruiter. MongoDB is an equal opportunities employer. Req ID: 1273361935