Staff Engineer - Prishtina

Staff Engineer

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

Staff Engineer

9fin

About 9fin 9fin is the AI platform powering global debt markets — the world’s largest asset class at over $145 trillion. Debt markets are vast, global, and mission-critical, yet still run on fragmented data, PDFs, and manual workflows. 9fin replaces this broken infrastructure with a single platform that centralises proprietary credit data, deep analysis, and high-value workflows across global markets. Today, 9fin powers teams at 300+ blue-chip institutions worldwide, including global banks, asset managers, private equity firms, law firms, and advisors. The business is scaling at exceptional speed, with rapid expansion in the US and best-in-class retention driven by deep workflow adoption. We’re at a defining inflection point. With proven product-market fit and strong, global market pull, 9fin is accelerating toward becoming the category-defining platform for debt markets worldwide. We’re looking for a Staff Engineer to lead the technical vision and architecture for 9fin’s New Markets engineering organisation. In this role, you’ll define and evolve the system design that underpins our future expansion—owning the end-to-end architecture, setting technical direction, and ensuring our platforms scale effectively as we enter new markets. You’ll create clear technical documentation, align multiple engineering teams around a shared vision, and guide execution by helping teams make thoughtful trade-offs. This is a high-impact, hands-on leadership role on the IC track. You’ll operate across strategy and execution—partnering with 6+ teams, contributing directly to critical code paths when needed, and raising the engineering bar across the organisation. WHAT YOU’LL DO * Partner with other staff engineers to propose high impact engineering proposals . * You will influence technical strategy, participate in technical governance and decision making . You align the technical vision with various stakeholders (primarily the engineering leadership layer) . * Design and scale backend services, APIs, and data platforms powering 9fin’s new market products * Work on complex entity mapping and data modelling challenges across new market’s data sources * Drive database decoupling and system modularisation to improve scalability, flexibility, and long-term maintainability * You will review and guide architecture across teams, helping avoid unnecessary coupling and complexity while keeping teams focused on pragmatic, high-impact solutions. * Dive into complex legacy systems, identify root causes of friction, and define a clear path to modernisation * Deliver high-quality, reliable production code through testing, logging, and alerting * Move between deep debugging and high-level system design to shape our platform evolution * Set a high bar for engineering through hands-on coding and strong technical leadership. * Leverage AI-assisted engineering to accelerate system understanding and delivery * Establish best practices, guardrails, and tooling to improve engineering velocity and safety * Ensure systems are scalable, reliable, and adaptable as we grow * Partner closely with Engineering and Platform * You will raise our technical bar by mentoring senior engineers, improving IC hiring and levelling practices, and helping shape how we develop technical talent across 9fin WHAT WE’RE LOOKING FOR * Proven track record of building and delivering backend systems from development to production, especially in data intensive environments * Deep expertise in distributed systems, APIs, and data pipelines * Strong experience with data modelling, entity resolution/mapping, and complex relational domains * Familiarity with event-driven architectures, Kubernetes, and cloud-based infrastructure like AWS * Experience in database decoupling, service-oriented architectures, or platform modularisation * Proficiency in Python (or similar backend languages) * Experience modernising legacy systems and improving platform architecture * Proven ability to lead complex technical initiatives end-to-end * Strong product and customer mindset * Comfortable operating in ambiguity and driving clarity * Skilled at balancing hands-on technical work with guiding and aligning others * Communicate clearly and effectively with technical and non-technical audiences. Nice to have: * Experience as a founding engineer or CTO at a startup, or building systems from scratch in early-stage environments Benefits We’re a scaling start up and we enjoy sharing our success, when the company succeeds, we always reinvest that in our people. We also offer huge amounts of responsibility, an abundance of opportunity for growth and a platform to truly excel. Financial & Insurance * Competitive Salary (our salary bands are benchmarked at the top end of the market) * Equity options * Pension (your minimum contributions are 4% with 9fin matching up to 7%) * Private Medical Insurance * Paid sick leave with Income Protection for long periods of illness * Group Life Assurance * Season Ticket Loan & Cycle to Work schemes Time off * 25 holiday days per year * Local public holidays (with the ability to exchange them for alternative days) * Hybrid working model, to allow you the flexibility to decide how, where and when you do your best work * Work abroad for up to 3 months a year * 1 month paid sabbatical after 5 years of service * Enhanced parental leave & flexible working arrangements available Training & Culture * Professional learning and development budget * Quarterly team socials * Summer and Winter company social events 9fin is an equal opportunities employer At 9fin we are dedicated to building and promoting a fair and inclusive workplace where everyone can reach their full potential and truly belong. We recognize that building diverse teams enables a more creative and productive environment. If you’re excited about this role but your experience doesn’t perfectly align with the job description, we encourage you to apply anyway. You might just be who we’re looking for — either for this role, or perhaps another.

Staff Engineer

Almedia

This isn’t your regular job. Almedia is a place where those who want to push harder can accelerate their careers faster than anywhere else. We’re aiming to become Germany’s second bootstrapped unicorn. Almedia is already Europe’s #3 fastest-growing company in 2025 (FT1000). We are building the future of marketing by rewarding our community of over 70 million users for engaging with our advertisers’ products. We are offering a new way to acquire users for the biggest companies in the world. We’re looking for a Staff Engineer to work directly with leadership on high-impact, zero-to-one projects. If you love taking full ownership, moving fast, and building real products end-to-end, we want to hear from you.   STAFF ENGINEER (€135K – €190K • Offers Equity)   WHAT YOU’LL DO: * Build core product features end-to-end (backend and/or frontend/mobile/web), from idea to production. * Define technical architecture and make system-level decisions that other engineers build on. * Take full ownership of projects: scope, architecture, implementation, and rollout. * Jump onto critical initiatives (SDK, network, new product bets) and unblock them fast. * Ship high-quality, testable code at high speed. * Work closely with whoever is needed to shape what we build next. * Using AI tools (Claude, Cursor, Copilot, etc.) as part of your everyday toolkit — we actively encourage AI-assisted development.   WHAT YOU NEED: * Strong experience as a senior / staff-level engineer in product teams. * Strong backend foundation (e.g. TypeScript/Node); full-stack, mobile, or frontend experience a strong plus. * Proven zero-to-one experience (early-stage startup, founding engineer, or similar). * Track record of owning complex projects and delivering them to production.   YOU ARE: * A builder with a strong ownership mindset and high output. * Comfortable with ambiguity, fast decisions, and a high bar for quality. * Product-minded: you care about impact, not just code. * A clear, direct communicator in English who can align stakeholders and elevate the engineers around you.   WHY ALMEDIA? * Own Our Growth: Competitive package with meaningful equity. * High Impact: Work on company-defining projects, not tickets in a queue. * Scale With Almedia: Join a profitable, high-growth startup early. * Great Environment: Central Berlin office, transport subsidy, breakfasts and lunches, language learning, Urban Sports Club, and more.   We believe in fostering talent, evaluating all skill levels during the hiring process, and providing a clear path for growth. Almedia is an equal opportunity employer. We embrace and celebrate diversity, and encourage individuals from all backgrounds to apply.