Exadel

Design, develop, and maintain Spark applications and enforce coding standards through code reviews. | Requires hands-on software development experience with PySpark on Databricks and knowledge of microservices and columnar data formats. | Join Exadel as a Senior Data Engineer and bring logic to life with Python. Solve analytical challenges and build solutions that matter—with a sharp, collaborative team. Why Join Exadel We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks. From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next. What powers it all? Our people are ambitious, collaborative, and constantly evolving. About the Client Our client is one of the Big Four accounting firms and the world’s largest professional services network. Headquartered in London, they operate in 150+ countries with 460,000+ professionals delivering excellence in audit, tax, consulting, and advisory. The team you will join designs, develops, and deploys innovative enterprise technology and AI-driven tools to support the delivery of tax services. It is a dynamic group combining expertise in tax, software engineering, change management, and project management, working on initiatives from tool design and deployment to training development and engagement management. Project Tech Stack Azure Cloud, Microservices Architecture, .NET 8, ASP.NET Core services, Python, MongoDB, Azure SQL, Angular 18, Kendo, GitHub Enterprise with Copilot, LangGraph, LangChain, RAG Pipelines, Multi-modal LLMs What You’ll Do Define and enforce best practices and coding standards across the project Conduct thorough code reviews to ensure adherence to established guidelines and maintain high code quality Working both independently and in close collaboration with others in the team Communicating clear instructions to team members and helping manage the flow of day-to-day operations Communicating with the client regularly Design, develop, and maintain robust and scalable Spark applications Write clean, maintainable, and efficient code following best practices and coding standards Optimize code for performance and scalability, ensuring efficient data handling Work closely with cross-functional teams to deliver high-quality software solutions Identify and resolve technical issues, ensuring the reliability and performance of applications Create and maintain comprehensive documentation for code, processes, and workflows What You Bring Solid hands-on experience in software development Practical experience developing SQL stored procedures and migrating them into Spark SQL or PySpark environments Extensive expertise using PySpark on Databricks, encompassing Delta tables, cluster management, and workflow automation Proven track record of optimizing Spark performance within production-level projects Strong proficiency in Python, specifically for complex data manipulation utilizing libraries like Polars or Pandas Solid understanding of columnar data storage formats, particularly Parquet, with practical experience using Delta Tables Proven expertise in data processing, analysis, and transformation workflows Strong analytical and problem-solving abilities with a detail-oriented mindset Practical and pragmatic approach to balancing standardized processes with flexibility to meet project goals effectively Solid understanding of microservices architecture and its implementation in scalable systems Nice to have Experience working with Azure Cloud services (or other major cloud platforms), including a range of SaaS offerings such as Service Bus, Data Lake, Blob Storage, Redis, and more Familiarity with FastAPI Expertise in containerization and orchestration tools such as Docker and Kubernetes English level Intermediate+ Legal & Hiring Information Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more. Reasonable accommodations are available to enable individuals with disabilities to perform essential functions. Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs. Compensation details are shared with candidates at the early stage of the recruitment process. The offer is not binding until a signed contract is in place. Your Benefits at Exadel Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details. International projects In-office, hybrid, or remote flexibility Medical healthcare Recognition program Ongoing learning & reimbursement Well-being program Team events & local benefits Sports compensation Referral bonuses Top-tier equipment provision Exadel Culture We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

Lead technical discovery, architecture decisions, client management, and engineering delivery for platform integration projects. | Requires cloud platform architecture, distributed systems, API design, workload orchestration, observability, SRE experience, client engagement leadership, and ability to work with hardware integration. | Principal Platform & Engagement Architect Bulgaria, Lithuania, Poland, Romania Why Join Exadel We're an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks. From AI platforms to digital transformation, we partner with enterprise leaders to build what's next. What powers it all? Our people are ambitious, collaborative, and constantly evolving. Project Duration 6-month engagement with the possibility of extension What You'll Do • Lead structured technical discovery with the hardware and platform engineering teams to establish the API surface, platform readiness, and target workload definitions • Author the Architecture Decision Record (ADR) documenting the integration approach, technology choices, and key design decisions • Define the requirements baseline, functional and non-functional, and produce the risk register • Negotiate and agree the revised Statement of Work for Phases 1 and 2 with the client • Establish the reference workload definition and benchmark criteria to be used through the POC • Maintain technical governance and architectural coherence across the integration build • Direct the engineering team on component delivery: workload adapter, hardware dispatch client, telemetry bridge, and any required platform-side changes • Manage the client relationship on a day-to-day basis: progress reporting, risk escalation, and gate reviews • Review and sign off integration components before gate conditions are assessed • Lead knowledge transfer and runbook acceptance sessions with client engineering teams • Support the customer Proof of Value demonstration in an advisory capacity What You Bring • Demonstrable background in cloud platform architecture, distributed systems, and API design — REST and gRPC in particular • Experience integrating third-party hardware or specialised compute into cloud scheduling and resource management layers • Familiarity with workload orchestration: Kubernetes, custom schedulers, resource plugins, or equivalent • Working knowledge of observability tooling: OpenTelemetry, Prometheus, Grafana, or comparable stacks • Comfort operating across the full stack, from infrastructure (IaC, networking, cloud providers) to API and platform layers • SRE background or equivalent: SLO definition, telemetry design, incident response, and operational documentation • Ability to design for observability and failure modes from the outset, not as a post-build afterthought • Experience producing runbooks and operational documentation for technical handover • Proven ability to lead client-facing technical engagements, managing expectations, communicating risk, and maintaining trust in ambiguous early-stage programmes • Comfortable working with non-traditional technical counterparts, such as hardware scientists who may not be experienced platform API producers • Skilled at structured requirements elicitation under significant uncertainty — able to extract requirements through interviews, prototypes, and reference examples rather than documentation • Experience producing Architecture Decision Records, revised SOW documents, and risk registers as formal engagement outputs • Experience operating as a senior contractor or fractional leader, comfortable with part-time engagement structures and accountability for commercial gate conditions without full-time oversight • Able to take ownership of engagement quality and client confidence independently Nice to Have • Prior exposure to custom silicon, FPGA integration, or specialised AI accelerator hardware • Experience in sovereign cloud, data sovereignty, or regulated compute environments • Familiarity with AI/ML workload types: inference serving, training pipelines, batch processing • Experience with M2M identity, workload authentication, and platform governance patterns • Background in early-stage or venture-backed technology companies where engineering rigour and commercial pragmatism must coexist English Level Upper-Intermediate Legal & Hiring Information • Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more • Reasonable accommodations are available to enable individuals with disabilities to perform essential functions • Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs Your Benefits at Exadel Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details. • International projects • In-office, hybrid, or remote flexibility • Medical healthcare • Recognition program • Ongoing learning & reimbursement • Well-being program • Team events & local benefits • Sports compensation • Referral bonuses • Top-tier equipment provision Exadel Culture We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

Design, develop, and maintain scalable .NET applications integrated with AI/LLM services, provide technical leadership, and collaborate with clients and team members. | 5+ years development experience with strong .NET, ASP.NET Core, Azure Cloud, microservices, AI/LLM frameworks, and good communication and leadership skills. | Why Join Exadel We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks. From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next. What powers it all? Our people are ambitious, collaborative, and constantly evolving. About the Client Our client is one of the Big Four accounting firms and the world’s largest professional services network. Headquartered in London, they operate in 150+ countries with 460,000+ professionals delivering excellence in audit, tax, consulting, and advisory. The team you will join designs, develops, and deploys innovative enterprise technology and AI-driven tools to support the delivery of tax services. It is a dynamic group combining expertise in tax, software engineering, change management, and project management, working on initiatives from tool design and deployment to training development and engagement management. Project Tech Stack Azure Cloud, Microservices Architecture, .NET 8, ASP.NET Core services, Python, MongoDB, Azure SQL, Angular 18, Kendo, GitHub Enterprise with Copilot, LangGraph, LangChain, RAG Pipelines, Multi-modal LLMs What You’ll Do • Providing requirements analysis, system design, .NET and AI development, database engineering, troubleshooting, performance optimization, and technical support • Designing, developing, and maintaining scalable .NET applications with integration of AI/LLM services • Implementing agentic AI solutions using modern frameworks (e.g., LangGraph, LangChain) • Applying prompt engineering techniques - including design, refinement, and evaluation - to optimize LLM performance • Building and optimizing RAG pipelines leveraging hybrid search and vector databases • Integrating and experimenting with multi-modal GenAI models (text-to-image, text-to-audio, etc.) • Conducting code reviews to ensure adherence to best practices and coding standards • Working both independently and collaboratively within the team • Providing clear instructions to team members and helping coordinate day-to-day operations • Communicating with the client on a regular basis • Providing technical leadership for the team – mentor, coach, and lead by example What You Bring • 5+ years of background in development • Strong background in .NET, ASP.NET Core, and Azure Cloud (Service Bus, Blob, Redis, etc.) • Solid understanding of microservices architecture and scalable system implementation • Knowledge of multi-modal AI models and their practical applications • Hands-on experience integrating AI/LLM frameworks (e.g., LangChain, LangGraph) into enterprise applications • Experience using LLMs to solve real-world problems and developing agentic AI applications • Understanding of RAG pipelines and hybrid search with vector databases • Pragmatic approach to balancing process against flexibility in achieving objectives • Organizational skills, including the capacity to self-manage, structure work, set priorities, and work to deadlines • Excellent troubleshooting and communication skills Nice to have • Bachelor’s or Master’s degree in Computer Science or Software Engineering • Skill for writing reusable libraries • Knowledge of Angular, Mongo DB, NPM, Azure DevOps Build/Release configuration • Expertise in containerization and orchestration (Docker, Kubernetes) English level Intermediate+ Legal & Hiring Information • Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more • Reasonable accommodations are available to enable individuals with disabilities to perform essential functions • Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs Your Benefits at Exadel Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details. • International projects • In-office, hybrid, or remote flexibility • Medical healthcare • Recognition program • Ongoing learning & reimbursement • Well-being program • Team events & local benefits • Sports compensation • Referral bonuses • Top-tier equipment provision Exadel Culture We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.