Jobs at Djinni

About Appexoft:

Appexoft is a Software Development Company that provides a full range of top-quality IT services. Our mission is to develop first-class applications and websites to provide our clients with the best solutions for maximizing their profits and turning their ideas into reality.

We offer:

• Opportunities for career growth;
• Competitive salaries;
• A friendly and professional team;
• A comfortable working environment;
• Delicious coffee, biscuits, and tea to keep you in a good mood;
• Free one-to-one English lessons with a teacher;
• Legal and accounting support;
• Access to free professional courses and training programs;
• Opportunities to attend industry events and conferences;

Required skills:

• Upper-Intermediate level of English, both spoken and written;
• Understanding of basic IT technologies and industry trends;
• Strong communication and interpersonal skills;
• Stress-resistance and the ability to stay productive under pressure;
• Result-oriented mindset and a high level of self-organization;
• Analytical thinking and excellent presentation skills.

Responsibilities:

• Daily search for potential customers;
• Building and maintaining a client base;
• Monitoring sales and market trends, competitor activities, and potential clients;
• Generating ideas for the development and promotion of our products;
• Preparing regular reports and analysis.

Required Technologies:

Node.js, Express.js / Nest.js
JavaScript (ES6+) / TypeScript
SQL (PostgreSQL, MySQL), NoSQL (MongoDB, Redis)
REST API, GraphQL, WebSockets
Git (GitHub/GitLab), Docker (preferred)
Postman for API testing
 

Nice to Have:

Understanding of OOP, SOLID principles, and design patterns
Experience with testing frameworks (Jest, Mocha, Chai)
 

Requirements:

English level: B1 or higher
Strong motivation to learn and develop in backend engineering
 

We Offer:

Interesting and challenging projects
Vast opportunities for professional development
Competitive salary
Friendly team of professionals
Comfortable working environment

Responsibilities
 

Develop and maintain web applications using React.js (Frontend) and Node.js (Backend).
Work with RESTful APIs and databases (MongoDB, PostgreSQL).
Write clean, efficient, and maintainable code.
Collaborate with designers, backend developers, and product managers to deliver high-quality solutions.
Participate in code reviews and continuously improve development processes.
Debug and fix issues in existing applications.
 

Requirements
 

Basic knowledge of JavaScript/TypeScript, HTML, and CSS.
Experience with React.js and Node.js (academic, personal, or internship projects).
Understanding of REST API principles and client-server architecture.
Familiarity with database management (MongoDB, PostgreSQL or similar).
Experience with Git and version control workflows.
Strong problem-solving skills and a willingness to learn.
English level: B1 or higher
 

Nice to Have

Experience with Redux, Next.js, Express.js, Nest.js.
Basic understanding of Docker, CI/CD pipelines.
Knowledge of testing frameworks (Jest, Cypress).
Familiarity with cloud services (AWS, Firebase).
 

What We Offer

Interesting and challenging projects.
Vast opportunities for professional development.
Competitive salary.
The friendly team of professionals.
Comfortable working environment.

Blackthorn Vision is looking for a Strong Junior Manual QA Engineer. Our client, established in 2011 and based in Colorado, is a leading player in the U.S. application management market. We’ve had a successful partnership with this client and are seeking candidates who are eager to take ownership and improve a product already trusted by over 6,000 enterprises.

Requirements:

• 2+ years of experience in Manual QA;
• Experience working within Agile teams with a clear understanding of ceremonies and team collaboration dynamics;
• Practical experience in both mobile and web application testing, with an understanding of their specifics and differences;
• Good understanding of SDLC and QA processes;
• Ability to write clear and structured test documentation;
• Experience with AzureDevOps and web-based test case management tools;
• Strong attention to detail and analytical thinking;
• Ability to look beyond individual tasks and understand how features impact the overall product and user experience;
• Understanding of client-server architecture basics;

• English level: Upper-Intermediate.

   

Responsibilities:

• Perform manual testing of mobile and web applications;
• Analyze requirements and ensure full understanding before testing;
• Create, maintain, and execute various types of test cases;
• Collaborate closely with developers, PM, and other stakeholders;
• Participate in sprint activities (planning, grooming, demos);
• Contribute to improving QA processes and product quality;

• Support release validation and post-release checks.

   

We offer:

• exciting and challenging work in a friendly and professional environment;
• excellent career opportunities and competitive salary;
• on-site visits to customers;
• flexible work schedule;
• professional development program with internal seminars on technical topics;
• courses, certifications, and access to the corporate library;
• free English classes;
• 18 working days of paid vacation (24 calendar days), 5 full-paid sick leave days, paid public holidays;
• medical insurance;
• maternity leave;
• IT club membership;
• employee referral program;
• recognition program with gifts and awards;
• pet-friendly and eco-friendly;
• direct and easy communication with management and much more.

Description
As a Middle Anti-Fraud Specialist at an Electronic Money Institution (EMI), you will be responsible for detecting, investigating, and preventing fraudulent activities across digital financial services. This role involves monitoring transactional data, analysing suspicious behaviour, and working cross-functionally with compliance, risk, and tech teams to enhance fraud detection and mitigation systems. You will contribute to ensuring the safety and integrity of the company’s financial ecosystem while maintaining a balance between customer experience and fraud risk.

Requirements

• 1 year of experience in fraud prevention or detection, preferably in fintech, EMI, or banking
• Strong knowledge of financial fraud typologies including identity theft, account takeover, social engineering, phishing, and synthetic identities
• Familiarity with AML (Anti-Money Laundering) practices and regulatory frameworks
• Proficiency in working with fraud detection systems, case management tools, and transaction monitoring platforms
• Good analytical and critical thinking skills with the ability to assess patterns, data anomalies, and fraud indicators
• Strong communication skills for preparing reports and communicating with internal teams or external partners

Responsibilities

• Monitor transactions and user behaviour for signs of fraud using internal tools and third-party systems
• Investigate suspicious cases thoroughly, gather evidence, and recommend appropriate actions such as blocking transactions, freezing accounts, or escalating to senior staff
• Maintain and update internal fraud rules, thresholds, and alert systems in collaboration with the Risk and IT teams
• Analyse fraud trends and propose process improvements or system enhancements to reduce future risk
• Support customer support teams in resolving fraud-related inquiries and disputes
• Prepare regular and ad-hoc reports on fraud incidents, and trends for internal stakeholders

Nice to have

• Experience working in an EMI or payment service provider regulated in the EU or UK
• Familiarity with fraud detection platforms like SEON, Actimize, Sift, or similar
• Certification in fraud examination
• Experience with SQL, Python, or data visualization tools (e.g., Power BI, Tableau) for fraud data analysis
• Knowledge of card fraud mechanisms (3DS, chargebacks, BIN attacks) and tools used in card transaction monitoring
• Ability to handle incident response and support in case of major fraud events or system breaches

IvorySoft is a people-first software engineering and IT consulting company. We provide complex technological solutions for startups and businesses from the USA, UK, Nordic countries, and Canada.

To meet our ambitious goals, we are looking for a Middle Python Developer to join the growing team that helps to create clean energy solar and storage solutions for all.

🎯ABOUT THE PROJECT:

The customer is a leading US-based company specializing in large-scale clean electrification solutions for commercial, industrial, public sector, and community solar customers. Their comprehensive services encompass every stage of the process. From inception to operation, the company handles the origination, development, ownership, and operation of solar generation, energy storage, and electric vehicle charging infrastructure at local sites throughout the country.

❗️The project is under NDA ❗️

(details will be provided during a final call with the customer's team)

RESPONSIBILITIES:

👨‍💻Design, develop, and maintain complex software solutions using Python.

👨‍💻Write clean, scalable, and maintainable code.

👨‍💻Collaborate with cross-functional teams to define, design, and ship new features.

👨‍💻Perform code reviews and ensure adherence to coding standards.

👨‍💻Stay up-to-date with the latest technology trends and best practices.

REQUIREMENTS:

💻 3+ of experience in Python development.

💻Strong knowledge of Python, Chalice/FastApi

💻Experience with database design and management.

💻Excellent problem-solving and analytical skills.

💻Strong communication skills and the ability to work in a team environment.

💻 Experience with github/ github Actions; 

💻 Good to have (not a strong requirement): Graphql; Cloudformation; AWS Lambda; AWS Cognito.

💻Experience with Agile methodologies is a plus.

At TechBiz Global, we are providing recruitment service to our TOP clients from our portfolio. We are currently looking for a Business Development Executive to join one of our clients' team. If you're looking for an exciting opportunity to grow in a innovative environment, this could be the perfect fit for you.

We are looking for a skilled Senior Data Engineer. This role, you will be responsible for building scalable data pipelines, working with large datasets, and optimizing data workflows in a cloud-based environment. You will collaborate closely with data and engineering teams to ensure efficient and reliable data processing.

Key Responsibilities

• Design, build, and maintain robust data pipelines (ETL/ELT)
• Work with Databricks for large-scale data processing using Spark and Delta Lake
• Optimize data workflows, performance, and data storage solutions
• Collaborate with cross-functional teams including data analysts, engineers, and stakeholders
• Ensure data quality, reliability, and scalability across systems
• Contribute to continuous improvement of data architecture and processes

Job requirements

1. Strong experience with Databricks (Spark / Delta Lake)
2. Proficiency in Python for data processing
3. Strong knowledge of SQL
4. Hands-on experience with ETL/ELT pipeline development
5. Experience with at least one cloud platform (AWS, Azure, or GCP)
6. Familiarity with Git and basic CI/CD practices

Nice to Have

• Experience with dbt
• Knowledge of streaming technologies (e.g., Kafka or similar)
• Experience with Terraform or Infrastructure as Code (IaC)

Are you a data-driven thinker with a strong analytical mindset and deep understanding of credit risk?
Join our growing FinTech team to play a key role in shaping and securing the entire credit lifecycle.

As a Risk Manager, you will have a direct impact on strategic decision-making, portfolio quality, and business performance. From developing scoring models and decision rules to conducting A/B tests and supporting cross-functional teams — you’ll be at the core of our risk management engine.

Main Responsibilities:

• full business support from the risk management side.
• decision-making system: support of existing rules and tools, development and implementation of new ones, testing of changes.
• implementation of scoring models in the decision-making process: implementation, rules for using scores, assessment of the effectiveness of models, decision-making on the appropriateness of use/necessity of building a new one.
• conducting A/B tests: criteria, sampling, analysis of results.
• analysis of the loan portfolio, operational and risk indicators, and other indicators related to the credit process (conversions, reject/approval rate, etc.).
• ad-hoc analysis in various directions (marketing, collection, etc.), presentation of results.
• work with databases using SQL.
• search for external data and service providers that would be useful for the business from a risk management perspective: search, feasibility analysis, communication, integration into the process, usage rules, results analysis.
• writing and updating internal documents (processes, rules, policies, underwriting and verification instructions).
• communication and support of other departments of the company (sales, marketing, legal, underwriting, product, IT and others) on risk management issues and to achieve the goals of the company as a whole and the risk management department in particular.

Professional Qualifications:

• experience in credit risks of individuals (bank, microfinance, pdl) from 3 years.
• experience in working with large volumes of data.
• knowledge and practical use of SQL.
• English language at the intermediate level.

What We Offer

• Join a fast-scaling FinTech company where your decisions shape the business and your contributions truly matter.
• Attractive salary package aligned with your experience and performance, plus performance-based incentives.
• Enjoy 20 vacation days, full 100% sick leave compensation, and a supportive, people-first culture.
• Learning, sports and medical insurance compensation.
• Work in an international, agile team with ambitious goals, modern tools, and a strong sense of purpose.

About us: 

BetterMe — a global wellness ecosystem empowering millions to become better — physically, mentally, and emotionally. We build what makes people better and keep challenging ourselves to inspire others.
 

Your impact:
 

• Take charge of income, expenses reporting and accounting across the Group.
• Lead the way in designing smarter processes that can transform our finance practice.
• Strengthen controls and oversight of group-wide expenses and payment processes.
• Collaborate closely with cross-functional experts in treasury, finance, legal, tax, and other key teams to achieve common goals.
• Provide support for both consolidated and stand-alone audits of the Group and its subsidiaries, ensuring compliance and transparency.
   

About you:
 

• 1+ years of experience as Accountant/Reporting Specialist/Auditor.
• Bachelor/Master degree in accounting, economics, finance or other related fields.
• Comfortable navigating and mastering large data sets in Excel or Google Sheets.
• Structured thinking, attention to details, ability to work with vast quantities of information.
• English — Intermediate.
   

Will be a plus:
 

• Knowledge of accounting software/SaaS: Microsoft Dynamics 365, 1C, Xero, QuickBooks, or other ERP systems.
• Involvement in reporting procedures at multinational companies, accounting for non-resident companies. Dealing with E-com/SaaS businesses.
• Availability of accounting/financial qualification such as DipIFR, ACCA, CAP / CIPA, CPA etc.(started or completed).
   

What you get at BetterMe:
 

A mission that inspires. Every line of code, every design, every idea helps millions of people become healthier and more confident.
Trust without micromanagement. You manage your time and make decisions independently. We value outcomes, not online hours.
Growth opportunities. 90% of our leads have grown within the company. There’s space for initiative, new responsibilities, and real career upgrades.
Flexible work format. Choose what works best for you — office, remote, or hybrid.
Wellness in practice. Offline: workouts with professional trainers in our corporate gym, massage, corporate lunches, sports, and team activities — everything you need to recharge and reset together. Online: regular online workouts, partner discounts, and free access to our products.
Health insurance & corporate doctor.
Open communication. Transparency across teams, honest feedback, and support for initiatives are part of our everyday culture.
Support for sports events. We cover entry fees and encourage the team to compete and participate together.
Modern equipment. We provide new hardware and everything you need for productive work.
Legal & finance support. Experienced lawyers and financial specialists are always there to help — from documents to personal consultations.

Find more about us on social media platforms: Instagram, LinkedIn.
 

From Ukraine to Europe: Nova Post Europe is already operating in 16 countries and continues to grow every day. Our team is united by a desire to move forward, achieve results, and explore new opportunities together. We are looking for people who want to create more — a large-scale European project born in Ukraine.

🧩 Main Responsibilities

• Full Sales Cycle: Managing the entire process from lead acquisition and nurturing to final contract signing.
• Lead Generation: Proactively identifying potential clients through cold calling, attending industry events, and leveraging referrals.
• Presentations & Negotiations: Conducting high-impact online and offline meetings, effectively presenting company services, and handling complex objections.
• Commercial Proposals: Preparing tailored individual offers and leading negotiations to ensure win-win outcomes.
• CRM Management: Diligently updating the sales pipeline, managing qualified leads, and preparing accurate performance reports.
• Client Handover: Collaborating closely with the Account Management team to ensure a seamless client transition after deal closure.

✅ Key Requirements

• Experience: 2+ years of B2B sales experience (a background in logistics, CEP, or freight forwarding is a significant plus).
• Languages: Slovak and English (both at a fluent/professional level) are mandatory.
• German Language: Proficiency in German is highly desirable (a strong advantage).
• Skills: Exceptional communication and negotiation skills with a proactive, results-oriented mindset.
• Qualities: High level of independence, quick learning ability, and readiness for new challenges in a fast-paced environment.

💸 We Offer

• Stability: Official employment under a Slovak labor contract with full social benefits.
• Compensation: Competitive fixed salary + performance-based bonuses (KPI).
• Vacation: 25 days of paid annual leave.
• Career Path: Tangible opportunities to grow into a Head of Sales Central Europe role.
• Environment: A dynamic international setting with a supportive and friendly team.
• Tools: Provision of a laptop, mobile phone, and support for business travel.

How to Apply: Please submit your CV and any relevant references. We look forward to meeting you!

Nova Post is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

• #NovaPost #SalesManager #Slovakia #Logistics #B2B #Career #BusinessDevelopment #Slovak #English #German #JobsInSlovakia

About project: Mobile marketing and audience platform

Project: sell-side omnichannel advertising platform powered by real-time mobile audiences. We deliver hundreds of millions of ads per day across thousands of global leading apps and websites. Our platform uses AI to deliver more efficient, effective and precise digital advertising campaigns. Our direct integration with thousands of mobile publishers gives us access to more than 50 billion first-party data signals per day across the globe. Marketers use these anonymized signals to understand and predict consumer behavior, identify new opportunities and fuel business growth.
 

Role Overview:

If you’re a talented Data Scientist looking to be part of a fast-growing, innovative R&D team, shape the future of decision-making in business, work on cutting-edge technologies and vast amounts of global real-time data, affect billions of mobile users, and become an industry leader - then let’s talk!

Our mobile data platform enables organizations to uncover insights and make data-driven decisions that enhance strategies and drive growth. We are seeking a Senior Data Scientist to join our Data Science & Engineering team.
 

Responsibilities:

• Analyze large and complex data to discover hidden patterns and opportunities.
• Develop and own end-to-end highly scalable data pipelines.
• Develop state-of-the-art machine learning models, and algorithms and build solutions in monetization fields.
• Provisioning data models for real-time (online) processing
• Shape new data products, and constantly improve the existing products.
• Collaborate with multiple teams including Product, BI, Analysts, DevOps, R&D and Marketing to lead and accomplish overall solutions.
• Oversee a complete release to production, including analyzing requirements, testing, monitoring and measuring results, multitasking, and quickly responding to critical issues.

Requirements:

Must:

• B.Sc./M.A/M.Sc. degree in Computer Science, Engineering, Math, Statistics, or other equivalent fields.
• 6 years as a Data Scientist - a strong background in ML concepts and models.
• Hands-on experience with Python, especially with data science ML libraries (regression & classification algorithms e.g. XGB or LGBM, recommendation system algorithms, etc.)
• Understanding of databases and SQL for data retrieval.
• Monitoring and alerting tools (e.g. Grafana, Kibana)
   

Advantage:

• Knowledge in the programmatic advertising landscape – DSPs, SSPs, exchanges – significant advantage.
• Experience with relational (e.g. Vertica, VoltDB) and non-relational (e.g. MongoDB) databases.
• Experience with PMML
  
  Interview process: 2-3 stages (technical/test task and interpersonal + HR).

Main requirements

Necessary to have experience with GIS.
We are seeking an experienced backend developer to build and maintain the API and backend infrastructure for our web portal and mobile application. You'll be working with modern technologies including Rust, PostgreSQL/PostGIS, and cloud-native deployments on Kubernetes

Requirements

Position name: Senior Backend Developer - Rust & Geospatial Systems
Level: Senior (only)
Hard skills requirements (including years):

• 6+ years of Software Engineering experience.
• Strong proficiency in Rust, or willingness to learn with solid C/C++ background.
• Strong experience with backend development using Rust and frameworks like Actix Web or similar.
• Expert-level experience with PostgreSQL, including schema design, stored procedures, query optimization, and performance tuning.
• Experience working with PostGIS or geospatial data (spatial analysis, coordinate systems) is a plus.
• Experience with cloud platforms such as Open Telekom Cloud, AWS, GCP, or similar.
• Strong experience with Kubernetes for container orchestration, deployment management, scaling, and troubleshooting.
• Hands-on experience with Helm for managing Kubernetes deployments.
• Experience with Docker and containerization best practices.
• Strong understanding of RESTful API design principles.
• Experience with Git and collaborative development workflows.
• Experience with DevOps practices, including CI/CD, Infrastructure as Code, and monitoring.
• Familiarity with Kubernetes ecosystem tools (Ingress controllers, service meshes, monitoring solutions).
• Experience with GitOps workflows (ArgoCD, Flux, etc.) is a plus.
• Understanding of authentication and authorization mechanisms and general security best practices.
• Experience with observability tools such as Prometheus, Grafana, and ELK stack.
• Familiarity with backend requirements for mobile applications is a plus.

Responsibilities:

• Design and develop robust backend services and RESTful APIs using Rust and Actix Web
• Architect and implement efficient database schemas in PostgreSQL with PostGIS extension
• Write optimized SQL queries and database procedures for high-performance data operations
• Deploy and maintain services on Kubernetes in Open Telekom Cloud using Helm charts
• Manage Kubernetes resources, deployments, and service configurations
• Implement DevOps best practices including CI/CD pipelines, monitoring, and automated testing
• Collaborate with frontend and mobile teams to ensure seamless API integration
• Optimize system performance and scalabilit

Office/Remote: Remote

English level: Upper Intermidiate

Timezone: Germany

Who We Are
Gamified coin trading platform (Telegram Mini-App / Mobile-App) — AMM, lootboxes, event sourcing, custom EVM chain (backend). Live product with users. Small team. Need a strong senior dev to raise the bar and ship faster.

Tech Stack
TypeScript | NestJS | React | Solidity (Foundry) | PostgreSQL | Redis | EVM

You Have

• 4+ years with TypeScript / Node.js
• Strong technical background (CS, math, physics, or equivalent self-education) — you think in systems, not just frameworks
• You learn new domains fast — we'll teach the specifics, but the thinking is on you
• You write tests for things that handle money
• Comfortable with AI tools (Cursor, Claude, etc.)
• Startup mindset — self-directed, low hand-holding

Nice to Have

• Blockchain / Solidity / DeFi experience
• Event sourcing / CQRS
• React / Telegram Mini-App
• Team lead experience

You'll Get
 

• Technical ownership in a small team
• Remote, flexible schedule
• Path to CTO / equity as we grow

Send a few words about what interests you and a link to code you're proud of.
 

We’re looking for a visionary Head of Product Design to lead the evolution of our digital ecosystem. This isn’t just about building features — it’s about shaping a unified, high-end experience across banking, crypto, and lifestyle products.

Key Responsibilities

1. Product Vision & Execution

• End-to-End Ownership: Guide the design direction across all product lines, ensuring seamless, premium experiences.
• Simplifying Complexity: Transform high-friction financial flows (e.g., KYC, staking, cross-border transfers) into elegant, user-friendly solutions.
• Data-Informed Design: Set and monitor design KPIs such as usability scores, task completion rates, and user satisfaction.

2. Team Leadership & Design Operations

• Mentorship: Lead and grow a high-performing team of 4+ UX/UI designers.
• AI-Driven Workflow: Integrate AI into design processes to accelerate prototyping and reduce manual tasks.
• System Evolution: Develop and maintain a design system (components, patterns, tokens) to support a fast-moving product roadmap.

3. Brand & Strategic Impact

• Brand Stewardship: Ensure the company’s visual identity is consistent and premium across apps, marketing materials, and online presence.
• Global Perspective: Conduct research across multiple regions, adapting design for local trust, culture, and user behavior.
• Marketing Collaboration: Work closely with marketing teams to create impactful brand campaigns and assets.

Requirements

• Experience: 5+ years in Product/UX Design, including 3+ years leading design teams in Fintech, Banking, or Crypto.
• Regulated Products: Experience delivering financial products in multiple jurisdictions while maintaining usability.
• Portfolio: A strong body of work showcasing strategic thinking, product design, and brand execution.
• Collaboration: Comfortable presenting bold directions to founders, engineers, and stakeholders.
• Technical Expertise: Advanced Figma skills and familiarity with AI-assisted design tools.
• Languages: Fluent English, Ukrainian.

About ListKit

ListKit is a B2B lead generation platform processing 825M+ person records, serving thousands of customers across DFY (done-for-you) and PLG (self-serve) segments. Our data enrichment pipeline runs on Google Cloud (Cloud Run, PubSub, Cloud Tasks, Firestore) with TypeScript/Node.js, backed by SingleStore for high-performance JOINs against our 825M+ record dataset and SQL Server for transactional order data.

We are an AI-first engineering team. Every engineer uses Claude (Anthropic) as a core development tool for architecture decisions, code review, debugging, estimation, and daily workflows. If you haven't worked with AI coding tools yet, that's fine, but you need to be excited about making it your primary way of working.

The Role

You will own the cloud-native data enrichment platform that powers ListKit's core product: turning customer search criteria into verified, enriched lead lists.

The enrichment service (TypeScript/Node.js on GCP) orchestrates the full pipeline: receiving order requests, querying 825M+ records via SingleStore stored procedures, routing records through email finder APIs (Enrow, Prospeo, LeadMagic) and email verifiers (MillionVerifier, TryKitt), tracking job lifecycle via Firestore counters, processing billing/refunds, and delivering final exports to GCS.

The integration challenge: This service must work in lockstep with our .NET backend, which manages the customer-facing order lifecycle in SQL Server. Today, these are two disconnected state machines. Your first major project is building the completion bridge so the enrichment platform's results flow back to the .NET order processing pipeline. You don't need to be a .NET developer; we have a strong .NET team. But you need to understand the integration surface and design clean APIs between the two systems.

What You Will Do

First 30 days

• Take ownership of the listkit-enrichment codebase (TypeScript/Node.js, Cloud Run)
• Understand the full enrichment flow: PubSub dispatch, Cloud Tasks per-row processing, provider waterfall, verification chains, Firestore lifecycle counters, SingleStore JOINs, billing/refund integration
• Build the completion callback: when GCP enrichment finishes, write results back to SQL Server's OrderProcessing table so the .NET pipeline detects completion
• Fix the data-retrieval PubSub subscriber gap

First 90 days

• Own the enrichment platform end-to-end: reliability, performance, monitoring, alerting
• Improve provider waterfall logic: smarter failover between Enrow, Prospeo, LeadMagic, and the SingleStore JOIN path
• Build observability: structured logging, Cloud Monitoring dashboards, SLA tracking per provider
• Reduce enrichment latency for large orders (1000+ records)
• Work with the .NET team to design the target architecture where GCP enrichment fully replaces the Windows Services

Ongoing

• Adding external email finding/verification API providers to Cloud Run/Cloud Tasks
• Optimize SingleStore stored procedures (sp_enrich_csv) for the 825M+ record dataset
• Scale the enrichment platform for higher throughput as order volume grows
• Build and maintain the external enrichment API (API key auth, rate limiting, usage tracking)
• Contribute to infrastructure-as-code (Terraform for GCP resources)

Required Skills

TypeScript/Node.js (3+ years)

• Express.js, async/await, Promises, streaming
• Building and consuming HTTP APIs at scale
• Error handling in distributed async workflows (retries, idempotency, dead-letter queues)

Google Cloud Platform (2+ years, or equivalent AWS/Azure)

• Cloud Run (containerized services, autoscaling, concurrency)
• PubSub (message queues, subscriptions, delivery guarantees)
• Cloud Tasks (HTTP task dispatch, rate limiting, retry policies)
• Firestore (document database, transactions, atomic counters)
• GCS (object storage, signed URLs, streaming reads)
• Terraform (infrastructure-as-code)

Database experience

• SQL: complex JOINs, stored procedures, query optimization against 100M+ row tables
• SingleStore, MySQL, or PostgreSQL (enrichment service uses SingleStore)
• Basic SQL Server knowledge for the integration surface

Distributed systems thinking

• State tracked across multiple stores (Firestore + SingleStore + SQL Server)
• Eventual consistency, idempotency guards, distributed locking
• Job lifecycle management: queued, processing, completed, failed
• Rate limiting against third-party APIs with different throttle characteristics

AI-first development mindset

• Experience with AI coding assistants (Claude, GitHub Copilot, Cursor, or similar)
• Willingness to use Claude as your primary tool for code review, debugging, architecture, and estimation
• We estimate all engineering work assuming AI-assisted development. Mechanical work compresses dramatically. You estimate only irreducible human work.

Nice to Have

• Experience integrating with third-party enrichment/data APIs (email finders, verifiers, data providers)
• Experience building multi-tenant SaaS APIs with API key authentication and per-plan rate limiting
• Stripe billing integration (credits, refunds, usage-based pricing)
• Understanding of .NET/C# (reading code, understanding integration points)
• Event-driven architectures and CQRS patterns
• Familiarity with Linear for project management

How We Work

• AI-first: Claude is embedded in everything we do. Code review, spec writing, debugging, Linear issue management. We track AI adoption scores and expect engineers to reach Vanguard tier.
• Async by default: Team spans Lisbon (WET/WEST), Ukraine (EET) and US. Written communication via Slack, Linear, and documented decisions.
• Ship fast, fix fast: Continuous deployment for hotfixes, scheduled release trains for features. Production incidents get addressed immediately.
• Ownership mentality: You own your systems end-to-end. If the enrichment platform breaks, you fix it.

Tools & Stack

Your primary stack

• TypeScript (Node.js 20+) on Google Cloud Run
• Google Cloud: PubSub, Cloud Tasks, Firestore, GCS, Secret Manager, Cloud Build
• SingleStore (825M+ row dataset, stored procedures, columnar JOINs)
• Terraform (infrastructure-as-code)
• Third-party APIs: Enrow, Prospeo, LeadMagic, MillionVerifier, TryKitt, AtData

Integration surface

• SQL Server (read/write to OrderProcessing table for the .NET bridge)
• .NET backend (you design the API contract; the .NET team implements their side)

Shared tooling

• Claude (Opus/Sonnet via claude.ai, Claude Code CLI, MCP connectors)
• Linear (project management with Claude-integrated workflows)
• Slack, Google Meet, Granola (meeting notes)
• GitHub Actions (CI/CD), Stripe (billing), Intercom (support), HubSpot (CRM)

How to Apply

Send your CV and a short note (3-4 sentences) answering one of:

1. "Describe a Cloud Run or serverless service you built that processes jobs asynchronously via PubSub/SQS/EventBridge. How did you handle job lifecycle, retries, and completion detection?"

2. "Tell us about a time you had to integrate two systems that tracked state in different databases. How did you design the bridge?"

We will prioritize candidates who can start within 2-3 weeks.