Staff Data Scientist

🏢 Summary: Senior Data Scientist role focused on building and operating real-time, AI-driven decisioning systems that directly impact user experience and conversion rates. The position involves developing and deploying production-grade machine learning models with strict low-latency requirements and contributing to personalization, experimentation, and recommendation systems. It combines hands-on ML engineering with experimentation, causal analysis, and large-scale data processing in a business-facing environment. 🗂️ Requirements: 7+ years commercial experience in Data Science with production ML focus, Strong experience deploying and maintaining production ML models, Experience with real-time systems and low-latency constraints, Proficiency in Python and SQL, Hands-on experience with gradient boosting methods, Experience with recommendation systems and uplift modeling, Strong knowledge of A/B testing and causal inference, Experience building feature engineering pipelines at scale, Experience with Apache Spark or PySpark, Cloud platform experience (AWS preferred), Familiarity with LLMs and GenAI for personalization 📃 Skills: Python, SQL, NumPy, Pandas, Scikit-learn, XGBoost, LightGBM, PySpark, Spark, AWS, Databricks, NLP, LLM, GenAI 🏢 Description: We are looking for a Senior Data Scientist to join a Growth Alliance team focused on AI-driven decisioning and user-facing machine learning systems. This role is suited for a technically strong data scientist who is equally comfortable working with business stakeholders and operating production ML systems at scale. About the Project: This is a high-impact role working directly on systems that influence end-user experience and conversion. You will operate in a real-time environment with strict low-latency requirements (<40 ms), contributing to a shift toward AI-driven decisioning aimed at improving product performance and increasing conversion rates. The work spans production ML pipelines, experimentation, and personalization, not just research or experimentation in isolation. Responsibilities: Design, develop, and deploy production machine learning models with real-time constraints; Build and maintain recommendation systems, uplift models, and contextual bandit frameworks; Conduct A/B testing, causal inference analyses, and statistical hypothesis testing; Develop and maintain feature engineering pipelines at scale using PySpark / Apache Spark; Monitor and validate deployed models to ensure performance and reliability; Collaborate closely with business stakeholders to challenge assumptions and define the right problems; Contribute to generative AI and LLM-based personalization initiatives; Work with decisioning platforms, personalization engines, and Martech integrations. Qualifications: 7+ years of commercial experience in Data Science with a strong production ML focus; Proficiency in Python (NumPy, Pandas, Scikit-learn) and SQL; Hands-on experience with gradient boosting methods (XGBoost, LightGBM); Experience with recommendation systems, clustering, NLP, and uplift modeling; Solid background in A/B testing frameworks, causal inference, and statistical modeling; Experience with feature engineering and production ML pipelines at scale; Cloud platform experience, preferably AWS; Familiarity with LLMs, prompt engineering, and GenAI for content personalization; Strong communication skills and ability to work in a highly business-facing environment; Databricks experience is a nice to have. Recruitment Process: Initial interview with our recruitment team; Interview with the hiring manager; Live Coding Assessment; Meeting with the Project Manager. Inuits Sp. z o.o. is registered in the National Register of Employment Agencies (KRAZ) under number 35420.

🏢 Summary: Staff Software Engineer role on the Data Platform team focused on building and leading the next generation of customer-facing data product experiences. The position involves full-stack development across frontend, backend, APIs, and data-driven workflows to turn data capabilities into intuitive product solutions. You will shape architecture, drive engineering best practices, and deliver production-grade data applications. 🗂️ Requirements: Staff-level software engineering experience, Proven experience leading customer-facing product initiatives from concept to production, Strong full-stack web application development experience, Strong proficiency in TypeScript, Node.js, and React, Experience working with Python-based systems, Experience designing APIs and production backend services, Ability to write maintainable, testable, high-quality code, Strong technical design and architecture communication skills 📃 Skills: TypeScript, React, Node.js, Python, APIs, Architecture, Testing, Observability, Snowflake, dbt, Kafka, Flink, Materialize 🏢 Description: Built is looking for a Staff Software Engineer to join the Data Platform team and lead the next generation of customer-facing data product experiences. In this role, you will build the application layer where data products are discovered, accessed, and used by customers. You will work across frontend, backend, APIs, services, and data-backed application workflows to turn platform capabilities into intuitive product experiences. WHAT YOU'LL DO - Lead the design and delivery of the application-facing data products platform, including product surfaces, backend services, APIs, frontend flows, and reusable patterns. - Build full-stack customer experiences using TypeScript, React, Node.js, Python, and related technologies. - Partner with Product to shape ambiguous ideas into useful customer workflows and offer practical alternatives. - Turn data science prototypes, analytics concepts, and platform capabilities into production-grade product experiences. - Bring strong software engineering practices through technical design, code review, mentoring, testing, and delivery patterns. - Help data engineers expand into software engineering work across frontend, backend, APIs, and production readiness. - Collaborate where data products integrate with application surfaces, platform capabilities, agents, or customer workflows. - Use customer signals, usage data, product feedback, and support insights to guide engineering decisions. SKILLS AND EXPERIENCE REQUIRED - Staff-level software engineering experience leading ambiguous, customer-facing product initiatives from idea through production. - Strong product judgment and ability to assess customer value in workflows and requirements. - Full-stack web application experience with backend-leaning depth. - Strong experience with TypeScript, Node.js, React, and modern web application architecture. - Experience with Python or ability to work effectively in Python-based systems. - Experience designing APIs, service boundaries, reusable application patterns, and production backend systems. - Ability to write high-quality, maintainable code with strong testing, readability, observability, and operational ownership practices. - Strong technical communication skills including design documentation and architecture discussions. - Collaborative leadership and mentoring ability. PREFERRED - Experience building data-heavy product experiences such as analytics products, reporting workflows, benchmarking tools, dashboards, or decision-support products. - Experience working with data engineers, analytics engineers, or data scientists to productionize prototypes. - Experience with AI or agentic product experiences. - Familiarity with Snowflake, dbt, Kafka, Flink, Materialize, or similar data platform technologies. - Experience in fintech, lending, banking, construction, real estate, compliance-heavy SaaS, or similar domains. - Experience with product instrumentation, activation metrics, experimentation, and usage-based iteration. - Experience mentoring engineers from adjacent disciplines into stronger software engineering practices. Benefits - Salary range: $170,000 - $240,000 USD per year. - Equity as part of total compensation. - Medical, dental, and vision coverage. - Unlimited PTO policy. - 401k with match and expedited vesting. - Learning grant program for professional development.

🏢 Summary: Senior Staff Software Engineer role focused on technical leadership and architecture for a large-scale SaaS marketing automation platform undergoing an AI-first transformation. The position involves driving AI-powered solutions, shaping cloud-native architecture on AWS, and solving complex scalability and performance challenges across distributed systems. The role operates across multiple teams, influencing technical strategy and mentoring senior engineers. 🗂️ Requirements: 8+ years of software engineering experience, Experience designing and delivering large-scale SaaS applications, Experience with complex distributed systems, Strong backend expertise in Python and/or PHP, Strong system design and architecture experience, Hands-on experience with AI-powered products or LLM integrations, Experience with AWS cloud environments, Experience with CI/CD pipelines and observability tools, Knowledge of MySQL, Redis, or DynamoDB, Ability to drive architectural decisions across teams 📃 Skills: Python, PHP, AWS, React, Ember, MySQL, Redis, DynamoDB, CI/CD, LLM, AI, Observability 🏢 Description: Our client helps small teams power big businesses with the must-have platform for intelligent marketing automation. Customers from over 170 countries depend on the Client’s mix of pre-built automation and integration to power personalized marketing, transactional emails, and one-to-one CRM interactions throughout the customer lifecycle. We’re looking for a Staff Software Engineer to join our client's growing engineering organization and help shape the future of a large-scale SaaS platform undergoing a major AI-first transformation. This is a highly impactful role focused on technical leadership, architecture, and cross-team collaboration. As a Staff Engineer, you’ll work across multiple engineering teams, helping solve complex technical challenges, drive architectural decisions, and accelerate the adoption of AI-powered solutions and agentic workflows across the platform. Rather than being tied to a single product area, you’ll operate at a broader organizational level, partnering closely with Engineering, Product, Design, and AI teams to improve scalability, performance, and engineering excellence. You’ll also play a key role in mentoring senior and lead engineers, helping raise the technical bar across the organization. This role is ideal for someone who enjoys tackling complex system-level challenges, influencing technical strategy, and driving impact through architecture, mentorship, and technical leadership rather than people management. Key takeaways: Stack: Python/PHP, AWS, React/Ember, MySQL, Redis, DynamoDB, CI/CD pipelines, observability tooling, and AI/LLM-powered services. Salary : 31 000 - 37 000 PLN gross/month, Contract of employment (+10% annual bonus, 75% Creative Tax) Working model: Hybrid, once a week in the office Location: Krakow, ul. Konopnickiej Recruitment process: Call with MOTIFE recruiter (30 min) Technical architecture session (1,5h) Panel (including cross-functional, AI-focused, High Grader | 1,5h) Responsibilities: Provide technical leadership and architectural guidance across multiple engineering teams within the Kraków Hub. Drive the design and development of AI-powered solutions, including agentic workflows, LLM integrations, and intelligent platform capabilities. Solve complex platform, scalability, and performance challenges across backend systems built with Python and PHP, while maintaining awareness of frontend technologies such as React and Ember. Partner closely with Engineering, Product, Design, and AI teams to deliver high-impact solutions. Contribute to the evolution of cloud-native architecture, engineering standards, and best practices across AWS-based environments. Mentor senior and lead engineers, fostering engineering excellence and best practices. Act as a trusted technical advisor, helping teams make sound architectural decisions while balancing business goals with long-term platform health. Requirements: 8+ years of software engineering experience , including designing and delivering large-scale SaaS applications and complex distributed systems. Strong backend expertise with Python and/or PHP in production systems. Solid system design and architecture background, with the ability to drive technical decisions, solve complex platform-wide challenges, and balance short-term delivery with long-term scalability. Hands-on experience with AI-powered products, LLM integrations, agentic workflows, or machine learning solutions. Proven ability to influence technical direction across teams and drive architectural decisions. Experience with AWS, CI/CD, observability, and modern engineering practices. Knowledge of databases such as MySQL, Redis, DynamoDB, or similar technologies. Experience with React or Ember is considered a plus. Background in marketing automation, CRM, or e-commerce platforms. Familiarity with modern AI engineering practices, AI development tooling, and emerging standards such as MCP is a plus. What we offer: Health Benefits 1. Medical Full coverage for employees and their dependents through LUX MED. Employees have access to the “Premium” package, providing enhanced coverage and greater access to care. A client pays 100% of the premium for employees and 50% for dependents. 2. Dental No additional cost for dental coverage- integrated into LUX MED medical plan. 3. Vision Reimbursement for vision expenses up to 400 PLN every 2 years. Mental Health Tools Access to TELUS Health EAP to provide support and resources in a time of need. Additional Benefits 10% annual bonus 75% Creative Tax Vacation: 26 days. Home Office Stipend: One-time $150 equivalent home office stipend to outfit their home office. Calm Subscription: Premium subscription access to Calm, the #1 app for sleep, meditation, and relaxation. Hub Perks: Receive meal and transportation benefits when traveling to the Poland Hub. Baby Swag: If you have a baby or adopt, you’ll receive a company-branded first bath bundle. Sabbatical Program: After 5 years of employment, receive a month-long paid sabbatical leave, with a sabbatical leave bonus.

🏢 Summary: Staff Software Engineer role focused on technical leadership and architecture for a large-scale SaaS marketing automation platform undergoing an AI-first transformation. The position drives cross-team architectural decisions, scalability improvements, and adoption of AI-powered and LLM-based solutions. It emphasizes system-level impact, mentorship of senior engineers, and cloud-native platform evolution. 🗂️ Requirements: 8+ years software engineering experience, Experience designing large-scale SaaS applications, Experience with distributed systems, Strong backend expertise in Python or PHP, Solid system design and architecture experience, Hands-on experience with AI-powered products or LLM integrations, Experience with AWS environments, Experience with CI/CD pipelines, Experience with observability tools, Knowledge of MySQL, Redis, or DynamoDB, Ability to drive architectural decisions across teams 📃 Skills: Python, PHP, AWS, React, Ember, MySQL, Redis, DynamoDB, CI/CD, LLM, AI, Observability 🏢 Description: Our client helps small teams power big businesses with the must-have platform for intelligent marketing automation. Customers from over 170 countries depend on the Client’s mix of pre-built automation and integration to power personalized marketing, transactional emails, and one-to-one CRM interactions throughout the customer lifecycle. We’re looking for a Staff Software Engineer to join our client's growing engineering organization and help shape the future of a large-scale SaaS platform undergoing a major AI-first transformation. This is a highly impactful role focused on technical leadership, architecture, and cross-team collaboration. As a Staff Engineer, you’ll work across multiple engineering teams, helping solve complex technical challenges, drive architectural decisions, and accelerate the adoption of AI-powered solutions and agentic workflows across the platform. Rather than being tied to a single product area, you’ll operate at a broader organizational level, partnering closely with Engineering, Product, Design, and AI teams to improve scalability, performance, and engineering excellence. You’ll also play a key role in mentoring senior and lead engineers, helping raise the technical bar across the organization. This role is ideal for someone who enjoys tackling complex system-level challenges, influencing technical strategy, and driving impact through architecture, mentorship, and technical leadership rather than people management. Key takeaways: Stack: Python/PHP, AWS, React/Ember, MySQL, Redis, DynamoDB, CI/CD pipelines, observability tooling, and AI/LLM-powered services. Salary : 31 000 - 37 000 PLN gross/month, Contract of employment (+10% annual bonus, 75% Creative Tax) Working model: Hybrid, once a week in the office Location: Krakow, ul. Konopnickiej Recruitment process: Call with MOTIFE recruiter (30 min) Technical architecture session (1,5h) Panel (including cross-functional, AI-focused, High Grader | 1,5h) Responsibilities: Provide technical leadership and architectural guidance across multiple engineering teams within the Kraków Hub. Drive the design and development of AI-powered solutions, including agentic workflows, LLM integrations, and intelligent platform capabilities. Solve complex platform, scalability, and performance challenges across backend systems built with Python and PHP, while maintaining awareness of frontend technologies such as React and Ember. Partner closely with Engineering, Product, Design, and AI teams to deliver high-impact solutions. Contribute to the evolution of cloud-native architecture, engineering standards, and best practices across AWS-based environments. Mentor senior and lead engineers, fostering engineering excellence and best practices. Act as a trusted technical advisor, helping teams make sound architectural decisions while balancing business goals with long-term platform health. Requirements: 8+ years of software engineering experience , including designing and delivering large-scale SaaS applications and complex distributed systems. Strong backend expertise with Python and/or PHP in production systems. Solid system design and architecture background, with the ability to drive technical decisions, solve complex platform-wide challenges, and balance short-term delivery with long-term scalability. Hands-on experience with AI-powered products, LLM integrations, agentic workflows, or machine learning solutions. Proven ability to influence technical direction across teams and drive architectural decisions. Experience with AWS, CI/CD, observability, and modern engineering practices. Knowledge of databases such as MySQL, Redis, DynamoDB, or similar technologies. Experience with React or Ember is considered a plus. Background in marketing automation, CRM, or e-commerce platforms. Familiarity with modern AI engineering practices, AI development tooling, and emerging standards such as MCP is a plus. What we offer: Health Benefits 1. Medical Full coverage for employees and their dependents through LUX MED. Employees have access to the “Premium” package, providing enhanced coverage and greater access to care. A client pays 100% of the premium for employees and 50% for dependents. 2. Dental No additional cost for dental coverage- integrated into LUX MED medical plan. 3. Vision Reimbursement for vision expenses up to 400 PLN every 2 years. Mental Health Tools Access to TELUS Health EAP to provide support and resources in a time of need. Additional Benefits 10% annual bonus 75% Creative Tax Vacation: 26 days. Home Office Stipend: One-time $150 equivalent home office stipend to outfit their home office. Calm Subscription: Premium subscription access to Calm, the #1 app for sleep, meditation, and relaxation. Hub Perks: Receive meal and transportation benefits when traveling to the Poland Hub. Baby Swag: If you have a baby or adopt, you’ll receive a company-branded first bath bundle. Sabbatical Program: After 5 years of employment, receive a month-long paid sabbatical leave, with a sabbatical leave bonus.

🏢 Summary: Hands-on Data Science Tech Lead role focused on building and deploying sports analytics and prediction models in high-load, real-time data environments. Combines advanced machine learning and mathematical modeling with team leadership and delivery ownership. Responsible for transforming business needs into scalable data science solutions while leading a team of 4 engineers. 🗂️ Requirements: Previous experience in Tech Lead or team leadership role, Strong hands-on programming skills in Python, Advanced knowledge of databases and data processing, Strong expertise in machine learning, statistics, and probability theory, Experience building and deploying mathematical or predictive models, Upper-Intermediate+ English level, Ability to combine technical leadership with hands-on engineering work 📃 Skills: Python, MachineLearning, Statistics, Probability, Databases, DataProcessing, MathematicalModeling, PredictiveModeling, DataAnalysis, Experimentation 🏢 Description: BETER is a rapidly growing product company. We create competitive content supplemented with analytics. For more than 5 years, we have been organizing sports tournaments, broadcasts, and developing our own sports community. We hold 45,000+ events per month in esports and traditional sports, and our products are represented in 150+ countries worldwide. We are looking for a hands-on Data Science Tech Lead to join our team and drive the development of sports analytics and prediction products. This role combines deep technical expertise in machine learning and mathematical modeling with team orchestration and delivery ownership. You will work closely with the Engineering Manager and lead a team of 4 Data Science Engineers, helping transform business needs and production challenges into scalable data science solutions. Responsibilities: Collaborate with the Engineering Manager to coordinate and support a team of 4 Data Science Engineers Collect and analyze business requirements, production issues, and product needs, transforming them into actionable data science tasks and backlog Analyze large volumes of sports, esports, and trading data Develop and improve sports prediction models using statistics and machine learning techniques Conduct, automate, and evaluate data-driven experiments Integrate mathematical and ML models into production workflows Participate in hands-on development and coding activities Perform code reviews and maintain high engineering and data science quality standards Ensure efficient execution and delivery of data science initiatives within the team Requirements: Previous experience in a Tech Lead or team leadership role Strong hands-on programming skills in Python Advanced knowledge of databases and data processing Strong expertise in machine learning, statistics, and probability theory Experience building and deploying mathematical or predictive models Upper-Intermediate+ level of English Ability to balance technical leadership with hands-on engineering work What we’re looking for: This is primarily a hands-on engineering role. The main focus is building mathematical models, writing production-level code, and delivering real business impact through data science solutions. At the same time, the role requires strong coordination skills — the ability to distribute work effectively within the team, support engineers, and ensure successful delivery together with the Engineering Manager. Successful probation expectations: During the probation period, we expect the successful delivery of a sports analytics or modeling product through: effective team orchestration, hands-on contribution to development, and high-quality execution of data science workflows. Ideal candidate profile: We would love to meet someone who is: proactive in communication and information gathering, focused on data-driven decision making, detail-oriented and demanding when it comes to production quality and best practices. Also relevant: High-load real-time data environments, such as fintech, gaming, marketing analytics, computer vision, or similar domains, working with large-scale data streams. We offer: Ability to work remotely Competitive and timely payment for services Flexible work schedule Personal mentoring and coaching Team building and corporate events 100% paid sick leave 20 working days of paid vacation Paid child care leave

🏢 Summary: Remote Team Lead Software Development role focused on leading a cross-functional engineering team while staying hands-on with backend and web service architecture and implementation in a .NET environment. The position combines technical leadership, product collaboration, and ownership of architectural decisions in an agile setup. You will drive engineering quality, technical standards, and team growth while contributing directly to code and system design. 🗂️ Requirements: Several years of experience in software development with .NET / C#, Minimum 3 years of experience leading development teams, Strong knowledge of software design patterns, Strong understanding of system architecture, Experience with modern engineering practices, Hands-on experience with backend and web services development, Experience using AI in software development process, Fluent English 📃 Skills: .NET, C#, AI, Elasticsearch, RabbitMQ, Redis, Azure, CI/CD, Umbraco, Containers, Backend, WebServices, Architecture, Agile 🏢 Description: Does building awesome, innovative products that add up to something meaningful sound like a dream come true? Come join us and make that vision a reality! About We are looking for an experienced Team Lead Software Development who combines strong technical expertise with leadership skills and a product-oriented mindset. In this role, you will take ownership of development teams, supporting both its technical direction and people development. You will lead a cross-functional engineering team of around 7–9 people , including Frontend, Backend, and QA specialists. The team works in an agile setup and collaborates closely with a Product Owner, UX Design, DevOps, and ITOps. Responsibilities Lead, coach, and support the development of your engineering team Help your team grow into a high-performing, self-organized unit Act as a sparring partner for the Product Owner and actively contribute to roadmap planning and prioritization Stay hands-on with the design, architecture, and implementation of backend and web services Make and own technical decisions, while communicating them clearly to stakeholders Improve agile processes within the team and continuously optimize the way of working Contribute to solution and domain design Strengthen engineering quality, good practices, and technical standards Take part in recruitment interviews and support the further development of the team Our offer Competitive salary on B2B contract Fully remote position Real impact and independence at work Individual career path Work-life balance A non-corporate atmosphere where innovation, personal growth, and teamwork thrive 100+ smart, curious & ambitious engineers What you bring Several years of experience in software development with .NET / C# At least 3 years of experience leading development teams, both technically and people-wise Experience using AI in the software development process Strong understanding of software design patterns, system architecture, and modern engineering practices A hands-on approach and the ability to stay close to the code when needed Strong communication skills and the ability to explain technical topics clearly to both technical and non-technical stakeholders A pragmatic mindset — you care about quality, but you also understand business priorities Fluent English, German is a plus Nice to have Experience with Elasticsearch, RabbitMQ, Redis, containers, Azure Cloud, CI/CD, Umbraco Experience working in a scale-up environment Knowledge of the financial market or financial products Benefits International Projects Small Teams Flat Structure Friendly Atmosphere Flexible Hours Individual Career Path We want your TALENT! Don’t hesitate and APPLY! We are happy to tell you more details about this position in a phone call. Our recruitment process is very fast and straightforward to ensure a great experience from the first interview to joining your dream team!

🏢 Summary: Leadership role combining hands-on software engineering with team management to build and scale AI-powered SaaS systems. The position focuses on driving architecture, delivering distributed cloud solutions, and developing AI and agentic workflows using modern technologies. You will mentor engineers while owning technical direction for scalable, production-ready AI services. 🗂️ Requirements: 5+ years of software engineering experience, Experience leading or mentoring engineers, Strong experience with distributed systems, Experience building SaaS applications, Hands-on experience with backend technologies, Experience with cloud platforms, Experience with AI or LLM systems, Ability to drive architecture and technical delivery 📃 Skills: Python, React, MongoDB, Redis, AWS, Azure, LLM, MCP, A2A, SaaS, Cloud, AI, DistributedSystems 🏢 Description: Team Lead- Software Engineer BigTime is looking for an experienced Team Lead- Software Engineer to lead and grow a team building the future of AI-powered software. This role combines people leadership, technical ownership and AI innovation . You’ll mentor engineers, drive delivery and help shape next-generation AI solutions used by thousands of professional services companies worldwide. About BigTime BigTime is the AI-powered professional services platform helping companies manage delivery, resources, and financial performance. 2,700+ customers worldwide $4B+ billable time tracked annually Inc. 500 Fastest Growing Companies (4 years in a row) Best Places to Work (3 years running) We’re headquartered in Chicago, with a strong engineering hub in Wrocław. What You’ll Do Team Leadership Lead, mentor and grow a team of engineers Support hiring, development and performance conversations Foster a culture of ownership, collaboration and continuous improvement Technical Leadership Drive architecture and delivery for AI-powered systems Guide engineering best practices across scalable distributed services Partner closely with Product and Engineering leaders AI & Platform Development Build AI and agentic workflows using LLMs, MCP and A2A Design scalable, secure and observable AI services Explore new AI technologies and bring ideas into production Tech Stack Python • React • MongoDB • Redis • AWS/Azure • LLMs • MCP • A2A What We’re Looking For 5+ years of software engineering experience Previous experience leading or mentoring engineers Strong experience with distributed systems and SaaS applications Hands-on experience with modern backend technologies and cloud platforms Experience with AI/LLM systems or strong interest in agentic AI Strong communication and collaboration skills Ability to balance people leadership with technical ownership What We Offer Flexible work model (office or hybrid) Contract of employment or B2B Private healthcare Cafeteria system & Multisport Modern office in the center of Wrocław Business trips to the USA Open and collaborative culture Team events and integration trips Ready to help shape the future of AI-powered software? Apply now.

🏢 Summary: Opportunity for a Team Lead Software Engineer to lead and grow a team delivering AI-powered, distributed SaaS systems. The role combines people leadership with hands-on technical ownership, driving architecture and delivery of scalable AI and agentic solutions. You will mentor engineers while building and productionizing next-generation AI services. 🗂️ Requirements: 5+ years software engineering experience, Experience leading or mentoring engineers, Strong experience with distributed systems, Experience building SaaS applications, Hands-on experience with backend technologies, Experience with cloud platforms, Experience with AI or LLM systems 📃 Skills: Python, React, MongoDB, Redis, AWS, Azure, LLM, MCP, A2A, SaaS, DistributedSystems 🏢 Description: Team Lead- Software Engineer BigTime is looking for an experienced Team Lead- Software Engineer to lead and grow a team building the future of AI-powered software. This role combines people leadership, technical ownership and AI innovation . You’ll mentor engineers, drive delivery and help shape next-generation AI solutions used by thousands of professional services companies worldwide. About BigTime BigTime is the AI-powered professional services platform helping companies manage delivery, resources, and financial performance. 2,700+ customers worldwide $4B+ billable time tracked annually Inc. 500 Fastest Growing Companies (4 years in a row) Best Places to Work (3 years running) We’re headquartered in Chicago, with a strong engineering hub in Wrocław. What You’ll Do Team Leadership Lead, mentor and grow a team of engineers Support hiring, development and performance conversations Foster a culture of ownership, collaboration and continuous improvement Technical Leadership Drive architecture and delivery for AI-powered systems Guide engineering best practices across scalable distributed services Partner closely with Product and Engineering leaders AI & Platform Development Build AI and agentic workflows using LLMs, MCP and A2A Design scalable, secure and observable AI services Explore new AI technologies and bring ideas into production Tech Stack Python • React • MongoDB • Redis • AWS/Azure • LLMs • MCP • A2A What We’re Looking For 5+ years of software engineering experience Previous experience leading or mentoring engineers Strong experience with distributed systems and SaaS applications Hands-on experience with modern backend technologies and cloud platforms Experience with AI/LLM systems or strong interest in agentic AI Strong communication and collaboration skills Ability to balance people leadership with technical ownership What We Offer Flexible work model (office or hybrid) Contract of employment or B2B Private healthcare Cafeteria system & Multisport Modern office in the center of Wrocław Business trips to the USA Open and collaborative culture Team events and integration trips Ready to help shape the future of AI-powered software? Apply now.

🏢 Summary: Lead Software Engineer role focused on building and maintaining scalable storage infrastructure and cloud-native backend systems using C#/.NET and Azure technologies. The position involves designing microservices, distributed workflows with Temporal .NET SDK, and secure APIs while ensuring reliability, scalability, and high availability. The role also includes mentoring engineers, improving engineering processes, and supporting AI/BI-driven data solutions. 🗂️ Requirements: 8+ years of backend development experience with C#/.NET, Experience with Azure App Services, AKS, Blob Storage, SQL/NoSQL databases, Experience with microservices architecture and distributed systems, Hands-on experience with Temporal .NET SDK or workflow orchestration tools, Experience designing RESTful or gRPC APIs, Knowledge of scalable, secure, and reliable cloud-native application design, Knowledge of data storage security, availability, and compliance, Ability to work 14:00–22:00 CET 📃 Skills: C#, .NET, ASP.NET, Azure, AKS, Blob, SQL, NoSQL, Temporal, gRPC, REST, Microservices, Airflow, DurableFunctions, StepFunctions 🏢 Description: Our customer is a global leader in digital agreement and e-signature solutions, enabling organizations worldwide to securely manage, sign, and automate business-critical documents and workflows. They are looking for a self-motivated software engineer to join us developing storage infrastructure to organize and facilitate our business growth. Our team is the center of how customers and services store their critical data and trust its security, performance, availability, compliance and durability, which enables customer derive intelligence and analytics through AI & BI. As a Lead Software Engineer, you will own all aspects of the software development lifecycle including design, development, testing, deployment, and maintenance of product features in software products. You will play a key role in ensuring that our storage solutions are reliable, scalable, and support advanced orchestration using technologies such as the Temporal .NET SDK. You enjoy fast-paced entrepreneurial environments where you can solve difficult problems using current technologies and tools. You collaborate well with other team members when brainstorming, designing, and implementing new solutions. You will also help the team succeed by thinking about ways to improve processes, suggesting ways to make the team more effective, and mentoring and modeling engineering best practices. Responsibilities: Design, develop, and maintain high-performance backend systems and APIs using C# and .NET technologies, hosted in Azure and various compliance-level data centers Build and maintain microservices-based architectures using C#, ASP.NET , and others Leverage Azure services like Azure App Services, Azure Kubernetes Service (AKS), Azure Blob Storage, and SQL/No-SQL databases to build scalable, secure, and reliable cloud-native solutions Design, implement, and maintain distributed workflows using the Temporal .NET SDK to provide resilient and observable orchestration for business-critical backend processes Integrate Temporal workflows with our .NET microservices architecture and cloud-based infrastructure Design and implement RESTful or gRPC APIs, and ensure seamless integration with other systems and products Optimize architecture and solutions for scalability and availability, with cost and maintenance in mind Identify and address performance bottlenecks and scalability challenges proactively Align across teams for designs, communicate and resolve roadblocks Guide and mentor other engineers through design and code reviews Working hours 14-22:00 CET Required Qualifications: Extensive experience 8+ years developing backend services and APIs in C#/.NET Experience with Azure services including App Services, AKS, Blob Storage, SQL/NoSQL Databases Experience with microservices architecture and distributed systems Hands-on experience with the Temporal .NET SDK or other workflow orchestration/tools (e.g., Durable Functions, Step Functions, Apache Airflow) Strong understanding of designing and building scalable, secure, and reliable cloud-native applications Experience with designing and implementing RESTful or gRPC APIs Knowledge of data storage best practices, including security, availability, and compliance Preferred Qualifications: Familiarity with integrating orchestration tools into enterprise software environments Experience with performance optimization, cost management, and designing for high availability Excellent communication and collaboration skills Prior experience mentoring engineers and conducting design/code reviews Background in supporting analytics and business intelligence integrations

🏢 Summary: Hands-on Software Engineer Team Lead role within a cloud-native environment, combining fullstack development with team leadership and delivery ownership. You will drive technical excellence, optimize workflows, and scale team capabilities while actively contributing to the Angular/.NET codebase. The role focuses on high-quality delivery, modern engineering practices, and continuous improvement. 🗂️ Requirements: Strong experience in frontend or fullstack development, Hands-on expertise with Angular and TypeScript, Experience with .NET backend development, Knowledge of CI/CD pipelines, Experience with automated testing (unit, integration, E2E), Understanding of component-driven architecture, Experience working in cloud-native environments, Ability to analyze performance metrics (e.g., DORA), Experience leading or mentoring engineers, Familiarity with observability and modern SDLC practices 📃 Skills: Angular, TypeScript, .NET, Playwright, Storybook, Tailwind, Azure, CI/CD, DORA, Observability, Fullstack, Architecture, Testing 🏢 Description: It’s not just a job — together, we’re on a mission. We're committed to accelerating the energy transition, with the goal of empowering 2 million sustainable energy installations by 2035. But we cannot achieve this goal alone. We are looking for talents to strengthen our team, and work with others on what really matters. The team you will join At iChoosr, you will join a team of 140 goal getters with a proactive approach, strong sense of ownership and strong interpersonal skills. Your colleagues work across the US, the Netherlands, Belgium, the UK, Poland, Japan and Macedonia. You will join the Consumer Flow Team that consists of a Tech Lead, developers, an QA specialist, a product manager and designers. The team Is dedicated to crafting a seamless and high-converting registration flow, personal offer and consumer portal for our end users closely collaborating with business stakeholders to align our technical roadmap with business objectives Job description As a Software Engineer Team Lead, you will lead a high-performing team operating within our cloud-native ecosystem. This is a hands-on leadership role where you will contribute directly to our fullstack codebase while taking accountability for the team’s operational success. This position is an ideal next step for a technical leader ready to transition into their first formal people management role. Your mission is to drive delivery standards, optimize workflows, and scale the team’s capabilities. You are the primary advocate for your engineers, ensuring that the team remains unblocked, high-functioning, and aligned with our broader engineering culture of excellence. You will lead by example, writing clean code and fostering a culture of continuous improvement in an environment built for speed and scalability. Tech stack: Angular (20+)/Typescript, .NET, Playwright, Storybook, Tailwind, Azure. Your responsibilities Maintain an active presence in the codebase (Angular/TypeScript/.NET), leading by example through high-quality PRs and consistent technical contributions. Own the day-to-day delivery of the team. You are responsible for ensuring the team meets its commitments and maintains a high "Say/Do" ratio. Manage team resource allocation and workload balancing to ensure sustainable high performance without burnout. Lead the personal growth, performance reviews, and career development of the team’s 3–5 engineers while co-creating and executing a top-tier talent pipeline. Proactively identify and resolve process or people-related bottlenecks that hinder the team’s velocity. Act as a partner for the Product Manager on Sprint Goals and for the Tech Lead on system architecture. Monitor and optimize team performance through DORA (and other) metrics. Your expertise Strong experience in modern frontend or fullstack development with a deep understanding of component-driven architecture. Knowledge of modern software delivery lifecycles, including CI/CD, automated testing (unit, integration, E2E), and observability. Solid skill in unblocking people-related issues and facilitating "blame-free" post-mortems and continuous feedback loops. Ability to interpret system performance data and developer feedback to continuously refine team processes and tooling. A proven track record of managing an engineering team is a plus. Our commitment to you Contribute to a more sustainable world on a daily basis. Competitive salary Comprehensive health benefits package Flexible work arrangements (remote & hybrid working) Professional development opportunities (Mentor/mentee program & buddyprogram) International company event once a year Lunch provided by the office Cultural holiday swap Day off on your birthday Possibility to travel Come be a part of our team! If this role fits you, we would love to hear from you. iChoosr is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.