Jobs at Djinni

We are looking for a motivated Junior .NET + React Developer with 1+ years of commercial experience to join our development team.

The ideal candidate has a solid backend development foundation, experience with React, and a willingness to grow as a Full-Stack Developer.
 

Requirements

• 1+ years of commercial software development experience.
• Good knowledge of C# and .NET / ASP.NET Core.
• Solid understanding of backend development principles, REST APIs, and database integration.
• Practical experience with React.js, JavaScript, or TypeScript.
• Experience working with relational databases (SQL Server or PostgreSQL).
• Familiarity with Microsoft Azure and cloud-based services.
• Understanding of Git and software development best practices.
• English level: B1–B2.
   

Nice to Have

• Experience with Azure App Services, Azure Functions, or Azure DevOps.
• Knowledge of Entity Framework Core.
• Experience with unit testing.
• Understanding of CI/CD processes.
• Work in a hybrid format.
   

Responsibilities

• Develop and maintain web applications using .NET and React.
• Build and integrate RESTful APIs.
• Work on both backend and frontend features, with a stronger focus on backend development.
• Collaborate with developers, QA engineers, and other team members.
• Participate in code reviews and technical discussions.
• Troubleshoot issues and improve application performance.

• Continuously learn and apply modern development practices.

   

You’ll get:

• A stable product with a long-term roadmap
• Direct cooperation with a US-based client
• Predictable, long-term workload
• Transparent compensation
• Paid vacation and sick leave
• Professional development support
• High-quality equipment
• Paid office lunches
• Anniversary gifts and baby bonus

Business Development Manager at Paydmit grows the business by identifying new markets and partners, building a strong sales pipeline, and turning opportunities into lasting commercial relationships 

The role works closely with product, compliance, and marketing to make sure proposed partnerships are commercially viable and can be delivered successfully.

Requirements:

• Experience in business development, partnerships, sales or a related commercial role

• Strong communication, presentation, negotiation and relationship-building skills

• Ability to identify opportunities, prioritize leads and manage a sales pipeline

• Commercial awareness and confidence working with targets and forecasts

• Proficiency with CRM and standard productivity tools

• At least 6 months experience in payments, fintech, financial services or iGaning is an advantage

• Ability to process large volumes of data with strong attention to detail

Preferred Qualifications:

• Background in FinTech, iGaming, IT, Crypto

• Experience in payment solutions or working with payment systems

• Previous experience on a similar role

Key Responsibilities:

• Identify and qualify prospective customers, partners and new business opportunities

• Build and manage a pipeline of prospects, from first outreach through negotiation and signed agreement

• Develop relationships with decision-makers and understand their business needs.

• Present companies products and services, tailoring proposals to each prospect

• Lead commercial discussions, negotiate terms and coordinate contracts with internal teams.

• Research markets, competitors and industry trends to inform growth plans

• Work with product and technical teams to assess partner requirements and support onboarding

• Coordinate with compliance, legal, finance and operations on due diligence and partnership readiness

• Maintain accurate pipeline, forecasts, and activity records in the CRM

• Track partnership performance and identify opportunities to improve retention, revenue, and expansion

• Represent company at relevant industry events and build a network of prospective partners

• Build and maintain long-term relationships with clients and partners

Working Conditions:

• Full-time position: Monday–Friday, 10:00 AM – 7:00 PM

• Remote work format

• Access to all necessary tools for productive workflow

• Company-sponsored professional development

• Corporate English trainings

• Opportunities for career growth across different projects and roles

We’re expanding our team and looking for a Django/DRF Developer to join Dataforest. If you’re looking for a friendly team, a healthy working environment, and a flexible schedule — you’ve found the right place to send your CV.

You'll be a great fit if you have:

- 3+ years of experience with Django and it's components;

- Experience with RESTful APIs, DRF and related libraries;

- Experience with Celery and async task management;

- Experience with SQL and query optimisation;

- Experience of writing tests;

- Able to work independently and excellent in communicating challenges and issues;
 

Would be a plus:

- Experience with AWS services (EC2, API Gateways, Lambda, SQS);

- Experience with NoSQL databases (Redis, Elasticsearch, etc.);

- Experience of end-to-end implementation for new functionality;

- Experience with payment systems integrations (Stripe, Shopify, Recurly, Paypal, Braintree, etc.);

- Experience with chargeback management tools (Ethoca, RDR, CDRN, etc.);

- Understanding how to handle high load on projects;
 

What you'll do:

- Design, develop and maintain payment gateway and other integrations;

- Design and develop new features and maintain existing functionality.

- Design and develop web applications using Python/Django/Celery.

- Design, develop and maintain RESTful APIs using Django Rest Framework (DRF).

- Write clean and well-structured code that is easy to read and maintain;

- Write and maintain technical documentation.

- Write and maintain unit tests to ensure code quality.

- Optimize and maintain the security, performance, and usability of the applications.

- Collaborate with the PM/Frontend/DevOps/QA and others team members.

We ensure your growth with:

- Great networking opportunities with international clients, challenging tasks;

- Building interesting projects from scratch using new technologies;

- Personal and professional development opportunities;

- Competitive salary fixed in USD;

- Paid vacation and sick leaves;

- Flexible work schedule;

- Friendly working environment with minimal hierarchy;

- Comfortable, spacious and well-equipped office in the city center;

- Team building activities, corporate events.

• Project Description:

  You will join a Regulatory Reporting Platform within a large US investment bank. The platform is responsible for collecting, processing, and transforming large volumes of data from multiple internal systems to produce regulatory reports for 240 jurisdictions worldwide. In total, the platform supports around 10,000 reports across a wide range of regulatory, compliance, financial, and risk reporting areas.
  This is a large-scale, business-critical data platform operating in a highly regulated environment, where data accuracy, quality, traceability, and timely delivery are essential. The team works on building and enhancing data pipelines, implementing reporting logic, ensuring data validation and reconciliation, and supporting the generation of complex regulatory outputs.
  The project is delivered by a global distributed team with colleagues located in Ukraine, Poland, and the US, offering close collaboration with engineers, analysts, and business stakeholders across multiple regions.

• Responsibilities:

  - Design, develop, and maintain solutions for a large-scale Regulatory Reporting Platform
  - Build and enhance data processing pipelines using Java and Apache Spark
  - Implement scalable logic for data ingestion, transformation, aggregation, and enrichment from multiple internal data sources
  - Develop and optimize batch processing jobs to support the generation of regulatory reports across multiple jurisdictions
  - Ensure high standards of data quality, validation, reconciliation, and consistency throughout the reporting lifecycle
  - Translate business and regulatory requirements into robust technical solutions
  - Collaborate with business analysts, QA engineers, and cross-functional teams to deliver reporting functionality
  - Investigate and resolve data and application issues in development, test, and production environments
  - Improve application performance, scalability, and reliability for high-volume data processing workloads
  - Contribute to the design and implementation of reusable components and engineering best practices
  - Participate in code reviews, testing, and release activities to ensure high-quality deliverables
  - Work closely with distributed teams across Ukraine, Poland, and the US in an agile delivery model
  - Support continuous improvement of the platform, including monitoring, troubleshooting, and operational stability

• Mandatory Skills Description:

  - 6+ years of commercial experience with Java
  + 2+ years of experience with Spark
  - Experience in designing and developing scalable, high-performance backend applications
  - Good knowledge of SQL and working with large datasets from multiple data sources
  - Strong problem-solving skills and ability to work effectively in a global distributed team

• Nice-to-Have Skills Description:

  - Experience in financial services, investment banking, or regulatory reporting projects
  - Familiarity with data quality, reconciliation, and control frameworks
  - Experience working with large-scale enterprise data platforms
  - Knowledge of cloud environments and modern data platform architectures
  - Understanding of CI/CD practices and automated deployment pipelines
  - Experience working in Agile / Scrum teams within a distributed global setup

On behalf of our client, we are looking for a Senior Motion Designer (Game Design) 

Requirements:

- Strong experience in Motion Design

- Proven experience working on game projects (must-have)

- Strong animation and visual storytelling skills

- A portfolio showcasing relevant game design and motion graphics work

- English communication skills

Company offers:

- Long-term employment with possibilities for professional growth

- Fully remote work

- Reasonably flexible schedule

- 15 days of paid vacation

- Regular performance reviews

Job Description

Bachelor's or Master's degree in Computer Science, Software/Biomedical Engineering, or a related field.
12+ years in software engineering services or product R&D, including 3+ years in technical presales, solution architecture, or consulting.
Strong MedTech background: hands-on experience delivering or selling regulated medical device software (SaMD/SiMD) under IEC 62304, ISO 13485, and ISO 14971.
Working knowledge of FDA (510(k), De Novo, PCCP, cybersecurity premarket guidance) and EU MDR/IVDR requirements and how they shape scope, estimates, and delivery models.
Practical expertise in AI/GenAI for healthcare: AI-enabled medical devices, the ML lifecycle under regulatory constraints, LLM/agentic solutions, and AI-assisted SDLC.
Demonstrated ability to own a market segment or solution area, including offering definition, positioning, and pipeline generation, without direct reports.
Ability to build solution architectures, estimates, and delivery models, and defend them in front of client engineering and procurement.
Solid grasp of modern engineering: cloud (AWS/Azure/GCP), connected devices and IoT, embedded, and data platforms.
Executive presence and storytelling skills, comfortable with VP/C-level audiences at medical device and healthcare companies.
Willingness to travel across EMEA and occasionally to North America.
English at C1 level or higher.

Nice to Have
Familiarity with the EU AI Act, FDA AI/ML guidance (including PCCP), and GMLP, and their impact on AI product development.
Experience with healthcare interoperability (HL7, FHIR, DICOM, IHE) and hospital IT (HIS, LIS, PACS).
Familiarity with IEC 81001-5-1, IEC 60601-1, and GDPR/HIPAA implications for device and AI software.
Established network among EMEA MedTech OEMs, diagnostics, or healthtech companies.
Background at a medical device manufacturer (R&D, Quality, or Regulatory) in addition to services experience.
Additional EMEA languages (German, French, Italian, Nordic, or Polish).
Proven track record of winning large, complex deals (multi-million EUR/USD, multi-year) through RFPs, RFIs, and proactive proposals.

Job Responsibilities

• Own and grow assigned MedTech segments in EMEA (e.g., diagnostics and lab automation, imaging, digital surgery, connected care, hospital IT), including segment strategy, target accounts, and pipeline.
• Drive assigned solution areas (e.g., AI-enabled devices, AI-assisted regulated SDLC, cybersecurity, interoperability) and define offerings, reference architectures, and go-to-market messaging.
• Lead the technical solution for strategic pursuits: discovery, solution design, estimation, delivery model, and risk assessment.
• Drive RFP/RFI responses and proactive proposals end to end, ensuring regulatory framing, compliance approach, and credible team ramps.
• Position GlobalLogic's AI capabilities in every relevant pursuit, including AI features in devices, GenAI/agentic solutions, and AI-accelerated engineering, in a regulation-aware way.
• Shape and evangelize healthcare AI accelerators and reusable components, and translate them into client value propositions and demos.
• Partner with Sales, Client Partners, and Delivery to shape deals, define win themes, and support pricing and commercial structuring.
• Lead client workshops, orals, and executive presentations as a senior technical voice for GlobalLogic in Healthcare & MedTech.
• Mentor architects and SMEs involved in pursuits within owned segments, providing technical direction without formal line management.
• Build thought leadership through whitepapers, webinars, and industry events on MedTech engineering and AI.

Department/Project Description

Role summary: A senior individual-contributor role driving GlobalLogic's technical presales for Healthcare & Medical Devices in EMEA. You will own selected MedTech segments and solution areas end to end, from market positioning and offering development to technical leadership of pursuits. You will act as a trusted advisor to client R&D, Quality/Regulatory, and C-level stakeholders, with AI as a core part of every solution story.

Skill Category

Management

We are looking for a DataBase Engineer who is passionate about designing reliable, scalable, and high-performing data solutions. In this role, you will help shape the data architecture of both new and existing products, collaborate closely with engineering teams, and contribute to the long-term scalability of our storage systems.
This is an excellent opportunity for an experienced database professional who wants to grow into a data architecture role while making a meaningful impact on products that influence the country’s employment market.
 

Requirements

• 5+ years of hands-on experience with relational databases, such as Microsoft SQL Server and PostgreSQL;
• Practical experience with non-relational data stores, including Elasticsearch and Azure Table Storage;
• Solid understanding of OLTP design principles and common transactional workload patterns;
• Experience with query optimization and performance troubleshooting;
• Understanding of data normalization and denormalization principles;
• Basic database administration skills, including backup strategies, replication, and indexing;
• Strong analytical and problem-solving skills;
• Motivation to develop professionally in data and storage architecture;

• English proficiency sufficient for reading and working with technical documentation.

   

Responsibilities

• Assess the data storage architecture of new and existing projects;
• Review data models and provide recommendations for improving performance, scalability, and reliability;
• Help select the most suitable storage technology for each use case, including Elasticsearch, Azure Table Storage, Azure SQL, and PostgreSQL;
• Work closely with software engineers to introduce best practices when designing and implementing new data schemas;
• Improve database performance through indexing, partitioning, and query tuning;
• Identify potential bottlenecks and recommend practical solutions for transactional workloads;
• Contribute to the development of a long-term scaling strategy for the company’s data storage systems.

Will be a plus

• Experience designing data storage solutions for high-load or rapidly growing systems;
• Experience building or contributing to analytical platforms, OLAP solutions, or data warehouse;
• Familiarity with cloud-based data architecture and distributed storage systems;

• Experience with database monitoring and performance analysis tools.

   

What We Offer

• The opportunity to make a direct impact on the country’s employment market;
• Collaboration with a team of highly skilled engineers and technology leaders;
• Real influence over technical decisions and the evolution of our data architecture;
• Clear opportunities to grow toward a Data Architect role;
• 24 calendar days of paid annual leave;
• Paid sick leave without formal medical documentation for the first three days of illness;
• Medical insurance;
• Access to a gym and wellness activities;
• Company-supported mental health initiatives;
• A supportive environment where your expertise, ideas, and professional growth truly matter.

We are looking for an Influence Marketing Manager to own and scale influence marketing across different geographies. You will source YouTube and Twitch influencers, negotiate ad placements, and manage the launch of GEO-specific campaigns while driving KPIs like ROAS and CAC. You will work closely with influencers, consulting them on account growth strategies, and collaborate with the IM team on campaign analysis, process optimization, and brand awareness projects to build world-class influence marketing. We move fast, stay flexible, and go after the esports market hard. Same energy expected from you ⚡️

📍 What to Do

• Search for YouTube, Twitch, and similar influencers
• Negotiate video ad placements
• Communicate with bloggers and creators
• Manage the launch of individual GEO campaigns and platforms
• Contribute to improving the overall efficiency of the IM department (ROAS, CAC KPIs)
• Participate in the analysis of placement results
• Advise influencers on account growth strategy and audience acquisition
• Participate in ongoing analysis of launched campaigns in specific GEOs, including audience analysis
• Improve the quality and efficiency of processes within the IM team
• Participate in organizing and running individual BAW projects

 🦸 Your Superpowers

• Conversational and written English B2+
• 2+ years of experience in Influence Marketing
• Experience in negotiations
• 3+ years of experience in marketing
• Understanding of the esports industry
• Knowledge of digital performance marketing approaches and methodologies
• Experience working with analytical tools

🤘 Bonus Points 

• Passion for CS2
• Experience running your own influencer channel
• Understanding of YouTube SEO/SERM algorithms
• Fluent communication in Chinese, German, Spanish, French, Portuguese, or Polish
• Experience working with AI tools

• Experience participating in brainstorms and developing creative campaigns

   

🍪 Team Perks 

• PRO&BRO team you’ll love creating new gaming universes with 
• Totally remote work from wherever you grind
• An equipment budget to upgrade your home office
• Flexible schedule with no time trackers since we just focus on results
• A performance-based bonus twice a year for every mojamer as a nod to our shared achievements 
• Wellness Bonus for the gym, yoga, dance, massage, therapy, or anything that keeps your energy up
• Level up your skills with our internal knowledge-sharing project Yoda. We also cover training, certifications, English & Ukrainian classes
• Days off and gifts for milestones of your choice (birthday, anniversary, baby arrival, or wedding) 
• JAM Activities: workations twice a year in different corners of the world, epic offline teambuilding events, CS2 and Dota tournaments, quizzes, lectures, and plenty of other hangouts for the team

• Plus relocation support, a Maternity/Paternity Leave Policy, a referral bonus, and a whole bunch of other cool perks you can check out on our website

   

Join us if this is all about you. We are waiting for your CV!

Let’s Add More Jam Together 🚀

MOJAM is looking for an experienced VIP Account Manager who has worked with high-roller clients in gaming, doesn’t just service accounts, but owns a real portfolio of high-value players and takes responsibility for how it performs. You’ll build long-term retention strategy and actively grow client lifetime value. Sounds like a challenge just for you? Check out the details below.

We’re hiring Day Shift VIP Manager to ensure 24/7 coverage for our top-tier clients. Schedule: 2 days on / 2 days off, 10:00–22:00 (EEST).

📍 What to Do

• Own a portfolio of several VIP players and develop an individual approach for each one of them
• Decide on personal offers and rewards yourself, within set limits. Only critical cases get escalated to the Shift Lead
• Track player activity and act before they do: spot behavior changes, choose the right action, and run it
• Reach out first with offers, event updates, or a simple check-in. Don’t wait for players to message you first
• Hand over the shift to the night team so nothing gets lost. Report on what has happened, who needs a follow-up, what’s still open
• Push technical and account issues to the Support team fast, and keep the Product team in the loop on the problems your players run into most

🦸 Your Superpowers

• 2+ years managing a personal portfolio of paying clients, with at least a year on a high-value segment. Gaming VIP experience is the strongest signal, but a clear transition from Support or Account Management into VIP works too
• You’re used to your work being evaluated. Retention, reactivation, deposit frequency, LTV are familiar metrics and you know how they translate into the performance of your portfolio. In your intro, name two numbers you personally moved and how you did it
• Hands-on experience with CRM and engagement platforms (Customer.io or similar ones), ticketing tools (Intercom, LiveChat, Jira or similar ones), and analytics dashboards for segmentation
• Go beyond answering the question: anticipate what the client needs next. Communication quality is evaluated, so this isn’t just a nice-to-have
• You make decisions in non-standard situations without waiting for approval, and you take responsibility for how they turn out
• Advanced/Fluent English (required)

🤘 Bonus Points

• You are part of the CS/CS2 gaming community

• Additional language skills are a strong plus

   

 🍪 Team Perks 

• PRO&BRO team you’ll love creating new gaming universes with 
• Totally remote work from wherever you grind
• An equipment budget to upgrade your home office
• Flexible schedule with no time trackers since we just focus on results
• A performance-based bonus twice a year for every mojamer as a nod to our shared achievements 
• Wellness Bonus for the gym, yoga, dance, massage, therapy, or anything that keeps your energy up
• Level up your skills with our internal knowledge-sharing project Yoda. We also cover training, certifications, English & Ukrainian classes
• Days off and gifts for milestones of your choice (birthday, anniversary, baby arrival, or wedding) 
• JAM Activities: workations twice a year in different corners of the world, epic offline teambuilding events, CS2 and Dota tournaments, quizzes, lectures, and plenty of other hangouts for the team

• Plus relocation support, a Maternity/Paternity Leave Policy, a referral bonus, and a whole bunch of other cool perks you can check out on our website

   

  Join us if this is all about you. We are waiting for your CV!

   

  Let’s Add More Jam Together 🚀

Requirements

• 2+ years of experience in affiliate marketing / CPA networks / Dating vertical
• Strong understanding of:
• Dating funnels
• Smartlinks / aggregator systems
• Traffic sources (Google, Meta, TikTok, Native, Push)
• Proven experience in partner negotiations and deal closing
• Analytical mindset and data-driven decision making
• Fluent English (written & spoken)

• Proactive & Self-Driven — takes initiative, actively searches for new partners and opportunities without constant supervision
• Strong Communication Skills — confident in negotiations, able to build trust and maintain long-term partner relationships
• Result-Oriented Mindset — focused on revenue growth, deal performance, and measurable outcomes
• Analytical Thinking — able to evaluate offers, partners, and funnels based on data and performance metrics
• Fast Learner & Adaptable — quickly adjusts to new GEOs, offers, and market changes in a dynamic environment
• Strategic Thinking — understands how to scale partnerships and align them with business goals
• Attention to Detail — careful with terms, payouts, caps, and partner conditions
• Resilient & Persistent — able to handle rejections, negotiate better deals, and push for results
• Team Player — collaborates effectively with media buyers, product, and tech teams
• Ownership Mentality — treats partnerships and results as personal responsibility

Responsibilities

1. Partner Acquisition & Relationship Management
• Identify, approach, and onboard new affiliate networks and direct advertisers in the Dating vertical
• Build and maintain strong relationships with key partners
• Act as the main point of contact for ongoing communication and deal negotiations
2. Offer Sourcing & Evaluation
• Source high-converting Dating offers (SOI, DOI, CPL, RevShare)
• Evaluate offers based on GEO, payout, funnel, and conversion rates
• Analyze partner reliability, payment terms, and scalability potential
3. Negotiation & Commercial Strategy
• Negotiate payouts, caps, and exclusive deals
• Structure deals of cooperation (CPA / Hybrid / RevShare)
• Optimize margins and ensure profitability of campaigns
4. Market & Competitor Analysis
• Monitor trends in Dating vertical (mainstream / adult / casual)
• Analyze competitor activity and identify new opportunities
• Stay updated on traffic sources, creatives, and funnel strategies
5. Collaboration with Internal Teams
• Work closely with PPC / Media Buying team to align on traffic requirements
• Provide partners with necessary campaign data and feedback
6. Reporting & Performance Tracking
• Track performance of partners and offers
• Prepare regular reports and insights for management

Nice to Have
• Existing network of Dating partners
• Experience with adult / casual dating
• Understanding of tracking tools (Keitaro)
• Experience working with high-volume paid traffic

About the Company

We are a European IT company with 200+ specialists delivering SaaS platforms, enterprise solutions, and cloud-native products for clients worldwide. We focus on building strong, long-term teams and supporting continuous professional growth.

About the Project

The project is a rapidly growing international FinTech platform transforming the restaurant payment experience through QR-code payments, bill splitting, digital menus, mobile ordering, and payment solutions.

The product is already live and backed by $72M in funding. With established BI and Data Engineering teams, the next step is to scale A/B testing across Product, Sales, and Operations.

You'll play a key role in building a scalable experimentation framework, improving data-driven decision-making, and helping teams turn hypotheses into measurable business outcomes.

Responsibilities

• Own and scale A/B testing and experimentation processes across multiple business functions.
• Configure and optimize GrowthBook and expand experimentation capabilities to mobile applications.
• Establish statistical testing standards, including power analysis, variance reduction, and sequential testing.
• Define experiment success metrics, guardrails, and evaluation methodologies.
• Develop experimentation playbooks and train Product, Sales, and Operations teams.
• Analyze experiment results and provide actionable recommendations to stakeholders.

Requirements

• 5+ years of professional experience in Product Analytics.
• 2+ years of hands-on experience with A/B testing and experimentation.
• 1+ year of experience with GrowthBook, Statsig, Optimizely, or similar experimentation platforms.
• 1+ year of hands-on experience with SQL.

Why Join This Project?

• High Impact: Shape the experimentation strategy of a rapidly scaling international FinTech product.
• Ownership: Build and improve experimentation processes rather than simply execute existing tests.
• Cross-functional Collaboration: Work closely with established BI and Data Engineering teams, as well as Product, Sales, and Operations.
• Modern Tooling: Work with GrowthBook, BigQuery, and AI-powered tools.

We Offer

• 20 paid vacation days per year.
• 5 paid sick leave days per year without medical documents.
• Personalized development plan with training compensation.
• English courses compensation.
• Work equipment if needed.
• Flat and transparent internal communication.
• Opportunity to switch between projects and technologies within Digis.
• Full accounting and legal support.
• Free access to corporate psychologist services.

If this opportunity sounds like a good fit, we'd be happy to hear from you. Apply now!

Build what happens behind the query.

Work on the core of a high-performance data platform — query planning, optimization, distributed execution and performance at scale.

About Our Client

Our client is a leading enterprise data platform company building an open, high-performance data lakehouse for AI and analytical workloads. The platform combines an intelligent SQL query engine, an AI-ready semantic layer, and an open catalog built on Apache Iceberg — enabling Fortune 500 companies across finance, energy, manufacturing, and logistics to unify, query, and govern data at massive scale across cloud and on-premise sources.

About the Role

We are looking for a Senior Software Engineer to work on the core query engine of a large-scale distributed data platform. You will own significant components across query planning, optimization, and execution — both driving improvements and acting as a trusted owner of production quality: diagnosing complex customer-reported issues and delivering safe, well-tested fixes across supported release lines. Engineers with staff-level scope and ambitions are very welcome.

This is a systems-level, backend engineering role focused on distributed data processing internals — not application development or CRUD services.

Responsibilities

• Architect, design, and implement query engine components — planner, optimizer, execution operators, memory management, and data access layers
• Diagnose and resolve complex production and customer-reported issues across the full query path — correctness, performance, memory, concurrency, resiliency, and compatibility
• Develop, review, and backport fixes across multiple supported release lines; strengthen regression prevention
• Write and review high-quality, performance-critical code in Java and/or C++
• Analyze query profiles, execution plans, logs, and telemetry to drive performance optimization — profiling, benchmarking, and eliminating bottlenecks in latency- and throughput-sensitive paths
• Integrate with columnar formats, open table formats, and connectivity drivers
• Improve regression tests, diagnostics, and observability; contribute to CI/CD architecture and quality processes in Jenkins
• Mentor middle engineers, lead code reviews, and help set technical standards

• Debug complex cross-layer issues spanning query planning, distributed execution, memory management, and I/O, partnering with US-based engineering leads

   

Required Qualifications

• B.S. or M.S. in Computer Science, Computer Engineering, or a related field
• 5+ years in backend / systems software engineering with a track record of owning significant components end-to-end
• Strong proficiency in Java or C++ (comfort with both is especially valued), with deep understanding of OOP, systems design, memory management, concurrency, and asynchronous programming
• Advanced SQL and solid understanding of query execution internals — planning, optimization, operator implementation
• Experience building or extending data processing systems: query engines, distributed databases, ETL/ELT, or analytical platforms
• Ability to assess change risk in a mature production system; experience supporting software across multiple versions, branches, or customer environments
• Hands-on experience with Jenkins and modern CI/CD workflows; Docker and Kubernetes
• Hands-on experience with at least one major cloud (GCP, AWS, or Azure)
• Confident Git/GitHub workflows and rigorous code-review habits
• Comfortable with AI-assisted development workflows — using modern AI tools for code comprehension, debugging, and test generation, and critically validating their output
• Prior experience mentoring engineers, leading technical designs, or owning components end-to-end
• English Upper-Intermediate or higher (B2+) — daily written and verbal communication with a US-based engineering team

• Availability to work EU business hours shifted 2–3 hours later for daily overlap with US West Coast mornings

   

Desired Skills

• Apache Arrow (columnar in-memory format) and SQL planner/optimizer frameworks such as Apache Calcite
• LLVM-based runtime expression compilation / code generation
• Open table formats — Apache Iceberg, Delta Lake, or Hudi — and columnar file formats such as Parquet, Avro, or ORC
• MPP query engines (Presto, Trino, or similar); background with distributed data platforms such as Spark, Snowflake, or Databricks
• Deep understanding of query optimization (cost-based, rule-based), vectorized execution, memory management, spilling, and caching
• Connectivity drivers: JDBC, ODBC, Arrow Flight
• Managed Kubernetes (GKE/EKS/AKS) and multi-cloud exposure; Terraform; cloud object storage (AWS S3, Azure Data Lake Storage, Google Cloud Storage)
• SaaS operations experience: incident response, profiling, observability, release and backport processes

• Systems-level performance work and open-source contributions to data infrastructure projects

   

Details

• Engagement: Long-term contract
• Location: Europe (EU / EEA / UK), remote
• Working hours: EU business hours, shifted 2–3 hours later for daily overlap with the US West Coast team

Responsibilities 

• Design, develop, and maintain backend application logic for invoice retrieval, validation, processing, and routing.
• Integrate with external systems through REST APIs using JSON and OAuth 2.0, including content-based routing scenarios.
• Build, deploy, and operate the solution as a Databricks App using Databricks Workflows, Delta Lake, and Unity Catalog.
• Develop and maintain an operational user interface for monitoring processing status, exceptions, and error handling.
• Implement robust logging, monitoring, observability, and error-handling mechanisms to ensure production reliability.
• Apply strong software engineering practices, including version control, CI/CD, automated unit and integration testing, and controlled deployments.
• Troubleshoot production issues and continuously improve application stability, performance, and maintainability.
• Collaborate with business and technical stakeholders to clarify requirements and deliver reliable application functionality.

     Requirements

• Strong hands-on experience with Databricks Apps, Databricks Workflows, Delta Lake, and Unity Catalog.
• Experience with e-invoicing solutions or invoice-processing workflows.
• Strong Python backend development skills, including validation logic, routing, API integrations, and application-level processing.
• Solid experience working with REST APIs, JSON, OAuth 2.0, and content-based routing patterns.
• Hands-on experience developing user interfaces with Streamlit or React within Databricks Apps.
• Good practical experience with Git, CI/CD pipelines, automated unit and integration testing, logging, monitoring, and production support.
• Strong understanding of software engineering principles and production-grade application development.
• Proven experience delivering and supporting stable production applications, rather than working exclusively with data pipelines.
• Strong troubleshooting and problem-solving skills, with the ability to diagnose application and integration issues.

Nice to have

• Experience integrating with SAP Ariba, ERP, procurement, or related enterprise platforms.
• Knowledge of UBL, PEPPOL, or similar electronic invoicing standards.
• Previous experience delivering and operating Databricks Apps in production environments.

We are looking for a Senior Full-Stack Developer to join a UK-based digital healthcare company that combines digital tools with clinical expertise to deliver medical and wellbeing services through its online platform.

This role is backend-weighted: you will build ASP.Net Core services that power patient-facing products, and also work on the React frontend that consumes them.

What you'll do

• Design and build ASP.Net Core Web APIs and the data layer behind them (Entity Framework Core, SQL Server);
• Implement background processing: queues, scheduled jobs, and event-driven messaging;
• Build and maintain frontend features in React and TypeScript;
• Work with Azure services across the stack: App Service, Storage Queues, Event Grid, SignalR;
• Cover your work with tests on both sides: xUnit and Moq on the backend, Vitest or Jest and Playwright on the frontend;
• Take part in code review, architectural decisions, and CI/CD improvements.

Requirements

• 5+ years of commercial development experience;
• Strong C# and .NET: ASp.Net Core Web APIs, Entity Framework Core, SQL Server;
• Solid experience designing REST APIs;
• Practical experience with background processing: queues, scheduled jobs, event-driven messaging;
• Strong React and TypeScript: hooks, React Query or similar, component libraries such as MUI;
• Hands-on experience with Azure (App Service, Storage Queues, Event Grid, SignalR);
• Git, Docker, and CI/CD (GitLab);
• Testing: xUnit and Moq, Vitest or Jest, Playwright;
• Good spoken and written English.

Nice to have

• Node.js and NestJS;
• MongoDB, Redis;
• Nx monorepo, Redux Toolkit;
• Terraform;
• Datadog or similar observability tooling.

Role Overview

We are looking for a Senior QA Engineer with a focus on automation and manual testing. The role involves ensuring product quality across functional, API, automation, and performance testing, as well as maintaining and improving automated test coverage. You will also have an opportunity to leverage AI tools to support test creation and improve QA processes. The company operates in the FinTech industry and specializes in alternative investments.
 

Role Responsibilities

• The role may involve up to 40–50% manual testing, while the rest will be focused on test automation, including AI-generated tests where appropriate. The exact balance may vary depending on project needs.
• Integration of automated test suites with the current build and deployment processes.
• Maintenance of automated tests to accommodate changes in system design and architecture.
• Integration of Automation framework with existing tools (JIRA).
• Create/Manage/Utilize Defect workflows with automated test execution.
• Design and publish meaningful metrics to support automation test creation and execution.
• Build and implementation of performance test suites.
• Perform all types of testing — Functional, API, Automation, Manual and Load, including necessary manual validation where required.
   

Role Requirements

• 5+ years of experience with QA engineering delivery experience
• 4+ years of delivery within Agile SDLC/teams ideally with CICD
• Programming experience in Java with focus on behavior driven development (BDD) and test-driven development (TDD) and design patterns, ideally within continuous integration (CICD), including hands-on experience for backend automation
• Experience with Java microservices and REST APIs and exposure to React front end
• Strong experience in data engineering, including data pipelines, ETL/ELT processes, and big data processing
• Hands-on experience with Apache Spark, Databricks, and distributed computing environments
• Experience designing and implementing streaming data processing solutions and scalable data platforms
• Experience with Playwright and TypeScript
• Agile development approach
• CICD: Maven, Sonar, Git, Teamcity/Jenkins, Docker
• AI Integration experience preferred
• Exposure to banking and/or finance environments preferred
• Strong communication skills: English B2+
   

Interview Process

1. Intro Call with Recruiter (45 minutes)
2. Technical Interview (90 minutes)
3. Call with Tech Lead (30 minutes)
4. Client’s Interview (60 mins)