Performance Qa Team Lead in Belgrade

Perplexity is looking for an Infrastructure Engineer to own and improve the backend systems behind our latency-sensitive search stack. You’ll work across high-QPS Rust and Go services, distributed retrieval systems, cloud infrastructure, observability, and deployment tooling. This role combines infrastructure expertise with software engineering. You’ll take systems from design through production operation and use AI-native tools where they meaningfully improve engineering and operational workflows Responsibilities Build and operate scalable, low-latency infrastructure for search serving and retrieval. Design and improve distributed backend systems that handle high request volumes. Debug and optimize Linux systems, containers, networking, and production services. Improve reliability through observability, capacity planning, performance profiling, and incident response. Design, deploy, and operate cloud-native systems, primarily on AWS and Kubernetes. Build internal tools and automation for development, testing, debugging, and infrastructure operations. Improve CI/CD pipelines, release processes, and production rollout safety. Contribute directly to product codebases across Rust, Go, and other systems languages. Own systems end to end, from architecture and implementation to deployment and production operation. Requirements Strong experience with cloud infrastructure, distributed systems, and automation. Deep understanding of Linux internals, performance analysis, and production debugging. Experience building or operating latency-sensitive, high-throughput backend systems. Experience with containers, orchestration, observability, and infrastructure as code. Experience building or maintaining CI/CD systems and release tooling. Fluency in at least one systems language, such as Rust, Go, C++, or Java. Comfort working across infrastructure and application-level code. Strong ownership and the ability to operate effectively in a fast-moving environment. Nice To Have Experie

About Wolt At Wolt, we create technology that brings joy, simplicity and earnings to the neighborhoods of the world. In 2014 we started with delivery of restaurant food. Now we’re building the delivery of (almost) everything and you’ll find us in over 500 cities in 30 countries around the world. In 2022 we joined forces with DoorDash and together we keep on dreaming big and expanding across the globe. Working at Wolt isn’t always easy, but it’s definitely exciting. Here you’ll learn more, build more, and ship more than in most other companies. You’ll be challenged a lot, but also have a lot of fun on the way. So, if you’re a self-starter with drive and entrepreneurial spirit, this could be the ride of your life. About the Team At Wolt, we’re building technology that makes life in local neighborhoods simpler. Wolt Market is our online grocery business, bringing customers a curated range of everyday essentials quickly and reliably. The Category Team shapes the assortment, promotions and supplier collaboration behind that experience. As a Category Specialist, you will be the operational backbone of the team ensuring promotional plans, data, communication and follow-ups move accurately and on time. You'll receive guidance and support from experienced colleagues while taking ownership of your daily responsibilities and contributing to the commercial success of Wolt Market Serbia. What you’ll be doing This is a hands-on coordination role at the centre of the Category Team. You will work closely with Category Managers, suppliers and internal stakeholders to keep commercial activities organised, accurately documented and delivered on schedule. Day-to-day in this role you’ll: Analyse category, product and promotional performance, preparing reports and insights to improve sales, profitability and assortment. Support new product listings and maintain accurate supplier and product information across stores. Support Category Managers in preparing supplier negotiations, following

Job Overview Wargaming is looking for an Economy Game Designer to join the Meta Game Design team working on World of Warships. In this role, you will work on game economy and meta systems that drive player activity, engagement, and long-term retention. Your responsibilities will combine regular live-service work with improvements to existing systems and the development of new meta-game mechanics. You will work closely with LiveOps, Analytics, and Development teams, using player data and economic modeling to support design and balancing decisions. What will you do? Design and balance rewards and progression for LiveOps events focused on player activity and engagement. Design and balance randomized reward mechanics in collaboration with the Monetization team, including reward composition, probabilities, expected value, and impact on the game economy. Design and configure battle economy for new game modes, including earnings, costs, modifiers, and their interaction with the wider game economy. Analyze the impact of new features, events, and economic changes on player behavior and key product metrics. Monitor the health of the game economy and its key systems, identify imbalances and emerging risks, maintain their stability, and propose improvements based on data and player behavior. Work with existing meta-game systems, identify problems and opportunities, and propose improvements aimed at increasing engagement and long-term retention. Participate in the design and balancing of new meta mechanics and progression systems for the core audience of World of Warships. Build economic models, simulations, and calculations to validate design assumptions and balance parameters. Define economic rules and configurations and maintain clear design documentation. Work with analytics and research teams to evaluate feature performance after release and use the results to improve existing designs. Collaborat

Job Overview Wargaming is looking for a proactive and hands-on Facility Officer to join our team in Belgrade. In this role, you will help ensure that our office facilities are safe, functional, and well-maintained, supporting smooth day-to-day operations and providing a comfortable working environment for our employees. You will be responsible for carrying out basic maintenance tasks, monitoring the condition of office facilities and equipment, coordinating external contractors and service providers, and assisting with workspace arrangements and office logistics. This role is ideal for someone who enjoys practical work, takes initiative, and can efficiently handle a variety of facility-related tasks. Reports to Head of Workplace & Employee Experience What will you do? Assists with maintaining daily operations of the physical facility. Supports maintenance mechanics and facilities staff by performing “handyman” maintenance duties such as furniture moves, simple electrical projects Works with outside contractors on building and equipment repairs Operates site equipment as needed, using hand and power tools as necessary Coordinates vendors/employees for performance of specialized maintenance, repair, or certification of buildings, infrastructure, tech appliances. Inspects completed work for conformance with contract requirements and safety codes Performs regular checks of buildings, infrastructure, and premises to ensure safety and uninterrupted use Organize storage areas, inventory management Providing support to office team in everyday operations: assist with setting up workspaces for new employees Arrange furniture and office equipment as needed Provide logistical support for meetings, events, and office functions What are we looking for? Previous experience in facility maintenance, handyman services, technical support, or a similar hands-on role. Practical skills in basic

Job Overview As a 2D Art Lead , you will oversee the strategic direction, operational execution, and continuous evolution of our 2D art department. Working closely with Art Directors, Executive Producers, 2D and cross-functional Discipline Leads, you will ensure our art pipelines are robust, innovative, and capable of consistently delivering AAA-quality assets. This role requires an innovative mind capable of driving change management, optimizing processes, and integrating cutting-edge technologies and approaches into our workflows. As a 2D Art Manager, you will be managing and empowering 2D Artists at all levels, aligning diverse stakeholders, and ensuring the seamless execution of the artistic vision. If you have a passion for blending high-level creative direction with modern production methodologies, and can guide a team smoothly through technological shifts while maintaining a healthy, motivated environment, this role is for you. Reports to Art Department Manager What will you do? Lead & Develop: Manage, mentor, and grow a high-performing 2D art team (including Supervisors and Experts), focusing on their long-term career development, performance management, and day-to-day empowerment. Optimize Processes : Define, implement, and constantly optimize 2D art production pipelines. Foresee production bottlenecks, scale workflows, and increase efficiency without compromising AAA quality. Champion Change & Innovation : Act as a change agent by driving the adoption of new technologies , specifically AI tools and automated workflows. Guide the team through transitions smoothly, securing buy-in and mitigating risks . Stakeholder Management : Maintain a close, strategic working relationship with Art Directors, Producers, Art Owners Project Managers , and other cross-functional stakeholders. Effectively manage expectations, align cross-functional teams, and translate project goals into actionable art strategies. Resource & Capaci

We're building the future of Speech Intelligence at Speechmatics, and we need someone who can own the technical engine behind how customers discover, adopt, and grow with our platform. This is a hands-on backend engineering role, where your work directly shapes the journey from a customer's first interaction with our website to their first meaningful moment of value. If you thrive shipping, iterating, and making a measurable commercial difference, then we’d love to hear from you. What you'll do Own the backend development and ongoing health of the Speechmatics website and self-serve portal Build and maintain new custom components from scratch, turning design specifications into reliable, performant, production-ready code Manage Vercel deployments and backend infrastructure, keeping the live site fast, stable, and technically sound Implement UI design changes end-to-end, bridging the gap between what's designed and what goes live Write Python-based queries to surface insights across the self-serve portal and support data-driven decisions across the team Identify and act on opportunities to improve conversion across the self-serve funnel through well-timed, well-designed product experiences Collaborate closely with product, design, and data teams in a cross-functional, async-friendly way, working closely together to remove blockers and unlock opportunities Own the ongoing improvement of site performance, loading speed, and technical reliability What you'll need Proficiency in JavaScript and TypeScript for website backend development, with a track record of shipping and maintaining production code Hands-on Python experience, particularly for data queries Demonstrable experience with LLM and AI-first development workflows, tools like Claude, Cursor, or similar Experience in a product-led growth or self-serve SaaS environment, with a clear understanding of conversion funnels and how engineering choices affect them The ability to operate

About Wolt At Wolt, we create technology that brings joy, simplicity and earnings to the neighborhoods of the world. In 2014 we started with delivery of restaurant food. Now we’re building the delivery of (almost) everything and you’ll find us in over 500 cities in 30 countries around the world. In 2022 we joined forces with DoorDash and together we keep on dreaming big and expanding across the globe. Working at Wolt isn’t always easy, but it’s definitely exciting. Here you’ll learn more, build more, and ship more than in most other companies. You’ll be challenged a lot, but also have a lot of fun on the way. So, if you’re a self-starter with drive and entrepreneurial spirit, this could be the ride of your life. What you’ll be doing We are looking for a highly motivated and data driven Senior Account Manager to join our growing team. As an Senior Account Manager you’ll play a key role in maximize our partners performance on the Wolt platform. You’ll focus on building strong relationships, providing top tier client experience, and driving growth through data-driven insights and close collaboration with cross-functional teams. Day-to-day in this role you’ll: Partner growth - drive the commercial growth of existing partners; Portfolio management - oversee a portfolio of partners, ensuring value creation across all stakeholders: partners, customers, couriers and Wolt; Performance optimization - use data insights to identify opportunities for partners, propose tailored campaigns and provide high level consultation to boost results; Relationship building - act as the key contact for appointed accounts, maintaining strong communication and supporting expansion opportunities; Cross-functional collaboration - ensure smooth communication across functions to align goals and optimize partner performance. Our humble expectations 4+ years of experience in account development, retail operations, sales; experience in e-commerce or marketplace is a plus; Analytical think

We're building the future of Speech Intelligence at Speechmatics, and we need someone who can own the technical engine behind how customers discover, adopt, and grow with our platform. This is a hands-on backend engineering role, where your work directly shapes the journey from a customer's first interaction with our website to their first meaningful moment of value. If you thrive shipping, iterating, and making a measurable commercial difference, then we’d love to hear from you. What you'll do Own the backend development and ongoing health of the Speechmatics website and self-serve portal Build and maintain new custom components from scratch, turning design specifications into reliable, performant, production-ready code Manage Vercel deployments and backend infrastructure, keeping the live site fast, stable, and technically sound Implement UI design changes end-to-end, bridging the gap between what's designed and what goes live Write Python-based queries to surface insights across the self-serve portal and support data-driven decisions across the growth team Identify and act on opportunities to improve conversion across the self-serve funnel through well-timed, well-designed product experiences Collaborate closely with product, design, and data teams in a cross-functional, async-friendly way, working closely together to remove blockers and unlock opportunities Own the ongoing improvement of site performance, loading speed, and technical reliability What you'll need Proficiency in JavaScript and TypeScript for website backend development, with a track record of shipping and maintaining production code Hands-on Python experience, particularly for data queries Demonstrable experience with LLM and AI-first development workflows, tools like Claude, Cursor, or similar Experience in a product-led growth or self-serve SaaS environment, with a clear understanding of conversion funnels and how engineering choices affect them The ability to o

Job Overview We are looking for an Analytics Engineer who will own dbt Cloud in our organisation and maintain the analytics pipelines built on top of it. You will administer dbt Cloud across multiple independent projects, keep our business-critical pipelines running (including finance data models), and support analysts in other teams as a mentor and go-to person for dbt. Our stack is Snowflake, dbt and AWS, with Python for tooling and automation. We are also building AI-assisted and agentic workflows into our daily work, and you will take an active part in this. Reports to Director of Mobile and New Games What will you do? Administer dbt Cloud for the whole organisation: project setup, environments, permissions, CI/CD, version upgrades and cost control Set up and support multiple independent dbt projects, define common standards and conventions so teams stay aligned Develop and maintain production dbt pipelines, including complex finance models where accuracy and trust are critical Mentor analysts on dbt, SQL modeling, testing and code review Tune Snowflake performance and cost, improve pipeline reliability and monitoring Build tooling and automation in Python (AWS Lambda, S3, orchestration, metadata workflows) Drive AI adoption in our analytics engineering work: build common AI skills for dbt development (documentation, testing, code generation) and automated agentic workflows that the whole team can reuse Follow current trends in AI tooling and agentic systems, evaluate new approaches and bring the useful ones into the team What are we looking for? 4+ years of experience in analytics engineering, data engineering or a similar role Strong hands-on dbt experience, ideally including dbt Cloud administration (projects, environments, jobs, CI/CD), not only model development Strong SQL and data modeling skills Production experience with Snowflake, including performance tuning and cost awareness Python for data tooling and automation Experience with AWS services used in

Job Overview Wargaming is looking for an Armored Vehicle (Historical) Consultant for World of Tanks. If you are a huge fan of technology and military history, you are welcome to join the Military Design and Research team. Our ideal candidate has the skills to read drawings, knowledge of the layout of combat vehicles, their appearance, and internal structure, and an understanding of the technology of operation of units and equipment assemblies, primarily armored vehicles of the period 1940 - 1990s. Reports to Head of Military Design and Research What will you do? Work in a team of historians with a group of contractors for the production of 3D models and drawings of military equipment (selection of source materials, execution and issuance of assignments, support during work progress, acceptance of work deliverables, and transfer to production) Search for and systematize historical materials on military equipment (Internet, printed publications, archives, museums, exhibitions, private collections, company partners, etc.) Consult on equipment, uniforms, and historical events for other divisions of the company Check 3D models of military equipment for historical and technical compliance Development of vehicle concept sketches, scale schemes, estimation and calculation of principal technical and performance specifications, and preparation of vehicle design descriptions, including the use of open-source publications and archival materials What are we looking for? Technical or engineering education Knowledge of the military history of auto and armored vehicles of the world of the XX-XXI centuries (structure, layout) Understanding of the fundamentals of design and materials of vehicles and armored vehicles (calculations of tactical and technical data, layout data, armor protection, etc.) PC skills, knowledge of text and graphic editors (Photoshop, E-Drawings, standard office programs, Blender) A combination of creative and technical thinking English language skills on

GAQ427R208 We're looking for a Recruiter with experience driving recruitment in the EMEA region for our Field Engineering & Forward Deployed Engineering teams, to help us identify and hire great people for Databricks as we continue our expansion. You will conceive practical and creative ways to identify leading talent and invest considerable time activating and engaging passive candidates. You will use data to set benchmarks and metrics to create targeted recruiting strategies while partnering with leadership to build inspired teams. You will report directly to the Manager, EMEA Talent Acquisition. This is a fixed-term position for a period of 12 months, with the possibility of extension. The impact you will have Own full-cycle hiring for entry to mid-level Field Engineering roles across EMEA — Associate and mid-level Solutions Architects, Solutions Engineers, Delivery Solutions Architects, and similar. Run creative, high-quality outbound sourcing: build target lists, write outreach that people actually reply to, and keep a healthy pipeline of engaged passive candidates. Build market maps and talent pools by market, skill and competitor, and keep them warm so we can move quickly when headcount opens. Partner with hiring managers and senior recruiters on intake, calibration and candidate feedback, and keep them informed with clear, regular updates. Give every candidate a great experience — fast, honest communication and a well-run process from first message to offer. Keep our data clean and useful: accurate ATS hygiene, reliable reporting on funnel and sourcing performance, and insight on what channels are actually working. Contribute to how we source: test new tools, channels and outreach approaches, and share what you learn with the wider team. What we look for Experience sourcing and recruiting in-house or in agency, ideally within software, SaaS, or the Data and AI space. Demonstrable outbound sourcing ability — you can talk us through how you find and

Job Overview Wargaming Belgrade is hiring a CRM Marketing Manager for World of Warships PC. You'll own CRM campaigns end-to-end : from audience and channel strategy through text and asset preparation, coordinating the teams that ship them , and analyzing what worked. We are considering only candidates who are already located in Belgrade or nearby; the company is not able to support relocation for this role. This role is offered as a one-year fixed-term contract to cover maternity leave. Reports to Global Communications Team Lead What will you do? Identify target audiences and grow product communication reach across CRM channels (email, in-game channels, push notifications ). Design, build, and launch CRM campaigns end-to-end. Prepare campaign texts yourself, then proofread and validate them for clarity, grammar, and tone. Work with the localization team to adapt campaign copy for all supported markets. Keep templates channel-appropriate and mobile-friendly. Build segmentation, personalization, and testable campaign hypotheses. Scope and assign tasks to design, dev, localization, and BI, then manage several concurrent campaigns through to delivery , tracking dependencies and flagging risks early. Analyze campaign performance and turn the results into concrete recommendations. Report campaign impact and engagement metrics to stakeholders in a clear, decision-ready format. Ensure compliance with communication policies and best practices. What are we looking for? 2–4 years of experience as a CRM Manager, CRM Marketing Manager, or similar. Experience with Emarsys, SendPulse, Braze, Iterable or a similar CRM/marketing-automation platform. Proven experience managing cross-functional projects : creating tasks for design, dev, localization, and BI, and following them through to delivery. Strong analytical skills: comfortable working with campaign and customer data t

About Wolt At Wolt, we create technology that brings joy, simplicity and earnings to the neighborhoods of the world. In 2014 we started with delivery of restaurant food. Now we’re building the delivery of (almost) everything and you’ll find us in over 500 cities in 30 countries around the world. In 2022 we joined forces with DoorDash and together we keep on dreaming big and expanding across the globe. Working at Wolt isn’t always easy, but it’s definitely exciting. Here you’ll learn more, build more, and ship more than in most other companies. You’ll be challenged a lot, but also have a lot of fun on the way. So, if you’re a self-starter with drive and entrepreneurial spirit, this could be the ride of your life. What you’ll be doing We are looking for a highly motivated and data driven Partner Success Specialist to join our growing team. As an Partner Success Specialist , you’ll play a key role in maximize our partners performance on the Wolt platform. You’ll focus on building strong relationships, providing top tier client experience, and driving growth through data-driven insights and close collaboration with cross-functional teams. Day-to-day in this role you’ll: Partner growth - drive the commercial growth of existing partners; Portfolio management - oversee a portfolio of restaurants partners, ensuring value creation across all stakeholders: partners, customers, couriers and Wolt; Performance optimization - use data insights to identify opportunities for partners, propose tailored campaigns and provide high level consultation to boost results; Relationship building - act as the key contact for appointed accounts, maintaining strong communication and supporting expansion opportunities; Cross-functional collaboration - ensure smooth communication across functions to align goals and optimize partner performance. Our humble expectations 2-3 years of experience in account development, sales; experience in e-commerce or marketplace is a

Job Overview We are looking for a Art Manager/Lead Art Owner to manage a team of 14 Art Owners supporting World of Tanks game production. This role combines people management, resource planning, production coordination, and process improvement to ensure the Art Owner's team operates effectively and the art pipeline runs smoothly. Art Manager/Lead Art Owner will work closely with cross-functional stakeholders - Art Direction, Art Management, Production, Project Management, and Design. Art Manager/Lead Art Owner will oversee workload, balance scope against capacity, support delivery planning, grow team capability, and drive cross-functional alignment. This role requires a strong understanding of art production, excellent communication skills, and an openness to innovation, including AI-driven workflow improvements. Reports to Art Department Manager What will you do? Partner with production and art leadership on resource planning and proactively address bandwidth or staffing risks Ensure clear priorities, ownership, and escalation paths for the Art Owner's team Improve task handoff, delivery flow, and coordination across the Art Owner's function Help Art Owner's team to identify and remove bottlenecks, mitigate risks, and ensure smooth art production delivery Act as a key point of contact for cross-functional stakeholders - Producers, Art Directors, Art Managers, Project Managers, and Design Strengthen stakeholder alignment, team collaboration, and communication transparency Review and improve Art Owner's-related processes, workflows, and best practices Drive innovation through smarter ways of working, including AI-enabled tools and automation where relevant Lead a team of Art Owners Conduct regular 1:1s, provide feedback, and manage performance through quarterly/annual goals and regular reviews Monitor Art Owner's workload and utilization , balancing scope and capacity across the team Coach and mentor the team in terms of their long-term skills development What

About Wolt At Wolt, we create technology that brings joy, simplicity and earnings to the neighborhoods of the world. In 2014 we started with delivery of restaurant food. Now we’re building the delivery of (almost) everything and you’ll find us in over 500 cities in 30 countries around the world. In 2022 we joined forces with DoorDash and together we keep on dreaming big and expanding across the globe. Working at Wolt isn’t always easy, but it’s definitely exciting. Here you’ll learn more, build more, and ship more than in most other companies. You’ll be challenged a lot, but also have a lot of fun on the way. So, if you’re a self-starter with drive and entrepreneurial spirit, this could be the ride of your life. Are you an experienced Grocery Associate, or do you have valuable experience in another grocery store? Do you have the ability to lead a team and inspire a high-quality standard of service? If this sounds like you, then we’d love to chat! Our Wolt Market team has been growing rapidly in Serbia and around the world. As such, we are looking for new Shift Leads to lead our Grocery team in Belgrade. The role requires you to take responsibility for high quality service, and monitoring the performance and wellbeing during the shift. Therefore, you’ll need to be comfortable with leading by example and raising the bar of the service we provide. You will be working together with the Store Manager to develop strategies to improve customer experience and satisfaction. In addition, you will work to resolve problems on a daily basis, and most importantly create high team spirit! Our stores are open 7 days a week, so this role also requires you to be able to work on weekends and in different shifts according to the Wolt Market's opening times and Wolt's delivery times. You’ll be part of a fun team that is redefining how we shop and while your colleagues will like to share a joke, they also take real pride in their work - as a company, we do common things uncommonly we Wha