Jobs at Djinni

About us

Hi, we’re Applica — the mobile product growth agency working with the teams behind leading apps like Loona, Fabulous, Fitonomy, Freeletics, Drops, and many others 👋.

We are on a mission to become the world’s leading growth partner for digital app owners.

About the role:
We're looking for a Creative Designer with 2+ years of experience creating ASO and UA creatives.

Most of your time will go into ASO visuals for mobile apps: App Store and Google Play screenshots, app icons, in-app event visuals, feature graphics, and everything around them. The rest goes into static UA creatives for paid campaigns across Meta, TikTok, and Google Ads. Both matter, but ASO comes first.

This role suits someone who pairs strong visual craft with an understanding of performance, experimentation, and how design influences user behaviour across organic store conversion and paid acquisition. We create a lot of variations, move through quick feedback rounds, and make decisions based on data as often as taste.

If you design with installs in mind, you'll fit right in.

Your day-to-day:

• Turn briefs and hypotheses into strong visual concepts
• Create and iterate ASO assets for both App Store and Google Play
• Design static UA creatives for multiple ad networks
• Generate and edit images using AI tools
• Jump between apps and adapt your design style as you go
• Work closely with our Performance Creative Strategist on briefs, feedback rounds, and final exports

What we're looking for:

• 2+ years designing ASO and UA creatives, with a portfolio to back it up
• The ability to turn briefs, product features, and existing app UI into clear, convincing store visuals
• Hands-on experience with AI image generation and editing tools, for both production and exploration
• Practical experience with Nano Banana
• Confidence working across different visual styles and app categories
• Proficiency in Figma
• Solid organizational and communication skills — we're spread across the world, so English is a must

Nice to have:

• Experience with apps in Health & Fitness, Meditation, Fintech, Education, Entertainment, or Lifestyle
• A feel for the numbers behind creatives: CTR, CPI, CPA, conversion rate, and install performance
• Experience with 3D static assets, whether creating, adapting, composing, rendering, or integrating them into final designs

What you get:

• Part-time / freelance work with a flexible schedule, and the option to go full-time later
• Fully remote work from anywhere, with flexible working hours
• Paid time off - vacation, sick days, and national holidays (for full-time employees)
• Learning budget for courses that improve your craft
• Access to premium AI-powered creative tools and workflows
• Senior mentorship from people who've solved the kinds of problems you'll be working on
• The opportunity to work on top mobile apps across a range of categories

Contact us if you're:

• Are efficient, proactive, and highly attentive to detail.
• Care about both visual quality and performance.
• Enjoy turning insights and hypotheses into strong visual concepts.
• Are curious about new tools, formats, and creative approaches.
• Actively experiment with AI in your design workflow.

Apply for the job

Do you want to join our team as our new Graphic Designer? Then we'd love to hear about you!

Toronto time zone

We're looking for a mature, Senior/Lead PHP Engineer with deep Laravel expertise and hands-on experience building or integrating agentic AI systems. You'll take ownership of complex backend features end-to-end, mentor other engineers, and help shape how AI-driven automation and agents fit into our product and internal workflows.

About the client:

Our client is a leading online car marketplace group operating across Europe and North America, bringing together market-leading brands to shape the future of our industry by combining the best of both regions.

What You'll Do:

• Design, build, and maintain robust backend services and APIs using PHP and Laravel
• Own features from technical design through deployment and monitoring
• Integrate and orchestrate agentic AI workflows (e.g., LLM-based agents, tool-calling pipelines, autonomous task runners) into existing products or internal tooling
• Improve system performance, reliability, and security across the stack

• Stay current with the PHP/Laravel ecosystem and emerging agentic AI tools and patterns

   

What You Need to Succeed:

• 6+ years of professional PHP development experience
• 4+ years building applications with Laravel (or comparable modern PHP framework experience with strong Laravel proficiency)
• Solid database skills (MySQL/PostgreSQL), including query optimization and schema design
• Familiarity with containerization (Docker) and cloud deployment (AWS, GCP, or similar)
• Strong communication skills and the judgment to work independently on ambiguous problems
• Hands-on GenAI experience — you've built with LLM APIs, tool/function calling, retrieval, agents, or agent frameworks and put them into real workflows.
• Modern AI coding tools (e.g., Claude Code, Codex) are part of how you work day to day.
• Strong communication and collaboration skills — you work well in a team, share your opinions clearly, and can move a topic forward with people across functions.
• Solid engineering fundamentals: testing, debugging, code quality, and getting things production-ready.
• English - at least Upper Intermediate+

• Work in EDT (Toronto) time zone

   

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

We are looking for a SRE / DevOps Engineer to support, automate, and scale cloud infrastructure for a large-scale IoT platform.

The role focuses on AWS infrastructure, Infrastructure as Code, CI/CD, containerized environments, and observability. You will help improve platform reliability, automate infrastructure and deployment processes, and ensure stable operation of production environments

Requirements

• Strong hands-on experience with AWS and cloud infrastructure
• Experience with Terraform and Infrastructure as Code
• Strong knowledge of CI/CD, preferably Jenkins and/or GitLab CI
• Experience with Docker and Kubernetes/EKS
• Hands-on experience with observability tools such as Grafana, Prometheus, Loki, or Graylog
• Scripting experience with Bash and/or Python
• Strong troubleshooting skills and experience supporting production environments

Nice to have

• Experience with Azure
• Knowledge of AWS services such as EC2, VPC, Aurora, ElastiCache, Route 53, WAF, and S3
• Familiarity with Vector or similar telemetry tools
• Familiarity with Java or TypeScript ecosystems
• Previous experience supporting IoT or other distributed platforms

Responsibilities

• Manage, maintain, and optimize AWS cloud infrastructure
• Develop and maintain modular Terraform configurations
• Build and improve CI/CD pipelines using Jenkins and GitLab CI
• Support containerized workloads using Docker and Kubernetes/EKS
• Implement and maintain monitoring, logging, and alerting solutions
• Troubleshoot infrastructure, deployment, and production issues
• Automate operational tasks using Bash and Python
• Improve platform reliability, scalability, and operational efficiency

Availability expectations

• Ability to maintain 3–4 hours of regular overlap with US Pacific Time for collaboration and meetings
• This is an office-based position, with mandatory attendance 5 days a week

The Defense Procurement Agency (DOT) is a national agency responsible for procuring ammunition, UAVs, military equipment, fuel, food, clothing, and other critical supplies for the Armed Forces of Ukraine and the Defense Forces.

Our mission: Strengthening Ukraine by ensuring reliable support for the Defense Forces while fostering the development of the national defense industry.

Our vision: To become the driving force behind the transformation of Ukraine's defense procurement ecosystem—not only operating the system, but continuously improving it.

We are looking for a Tech Lead / Senior DevSecOps to provide technical leadership to the Security Engineering team, develop information security architecture, implement security solutions across the Microsoft ecosystem, and integrate security requirements into infrastructure and software development processes.

Responsibilities

• Provide technical leadership to the Security Engineering team, including prioritizing and distributing tasks, mentoring team members, and ensuring the quality of implementation.
• Design and develop information security architecture and key cybersecurity capabilities, including Cloud Security, Identity & Access Management, Vulnerability Management, DevSecOps, and Incident Response.
• Implement, administer, and develop security services across the Microsoft security ecosystem.
• Conduct security reviews of infrastructure, CI/CD pipelines, and Infrastructure as Code (Terraform).
• Collaborate with Infrastructure, DevOps, and Software Engineering teams to integrate security requirements into architecture and development processes.
• Develop the AI Security function, including AI Security Proxy, AI Governance, DLP, monitoring, and auditing.
• Develop technical security standards, guidelines, recommendations, and information security documentation.

Requirements

• Bachelor's or Master's degree in Cybersecurity, Information Technology, Computer Science, or a related field.
• 3+ years of experience in cybersecurity roles such as Security Engineer, Cloud Security Engineer, or DevSecOps Engineer, with hands-on experience in Azure Security and Microsoft Security.
• Hands-on experience securing cloud infrastructure in Microsoft Azure.
• Strong knowledge of Microsoft security services, including Defender XDR, Defender for Cloud, Sentinel, Intune, Entra ID, Purview, and related solutions.
• Experience building and developing Vulnerability Management processes.
• Strong understanding of modern DevSecOps practices, including CI/CD security, Infrastructure as Code (Terraform), SAST, DAST, Secret Scanning, and IaC Security.
• Hands-on experience securing containerized environments and Kubernetes.
• Experience with information security incident analysis and response.
• Previous technical leadership experience or strong Senior Security Engineer experience with the readiness to take on a Tech Lead role.

What We Offer

• Meaningful work that directly contributes to strengthening Ukraine's defense capabilities.
• Official employment with competitive salary and full social benefits.
• Professional development, learning opportunities, and career growth.
• Structured onboarding and dedicated mentorship.
• A collaborative, supportive, and mission-driven team.
• Modern office near the metro with reliable internet and equipped shelter.

By joining our team, you will contribute to one of Ukraine's largest digital transformation initiatives in the defense sector and help build the future of defense procurement.

Ready to make a real impact? We'd love to hear from you. Apply today!

* By submitting your CV, you consent to the processing of your personal data in accordance with applicable legislation.

** Due to the high volume of applications, only candidates whose qualifications best match the position will be contacted.

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications and regulatory technologies. 

We are looking for a Copywriter to join our team.

Requirements:

- Experience in sports betting-themed and/plus gambling copywriting/rewriting;

- Passion for sports/sports-betting;

- English fluent;

- Teamwork skills;

- Literacy, responsibility for the final result, attention to detail, and personal involvement;

- Ability to work with large volumes of information and structure it;

- Ability to do monotonous work on time and without compromising quality.

Responsibilities:

- Follow the recommendations of proofreaders, marketers, and regional managers;

- Follow our guidelines, taking into account existing requirements for texts;

- Collaboration with project managers, RMM, and other departments;

- Analysis of competitors and search for the optimal writing styles;

- Stick to promo rules templates and meet the deadlines.

Our benefits to you:
🔸An exciting and challenging job in a fast-growing holding, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and more
Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed
🔸Modern corporate equipment based on macOS or Windows and additional equipment are provided
🔸Paid vacations, sick leave, personal events days, days off
🔸Referral program — enjoy cooperation with your colleagues and get the bonus
🔸Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences
Rewards program for mentoring and coaching colleagues
🔸In-house Travel Service
🔸Multiple internal activities: online platform for employees with quests, gamification, presents and news, PIN-UP clubs for movie / book / pets lovers and more
🔸Other benefits could be added based on your location

We are looking for a Game Mathematician to work on slot games within an iGaming product. This role is for someone who can turn mathematics into an engaging and well-balanced gaming experience, works confidently with probabilities, RTP, and simulations, and collaborates effectively with developers and QA.

Responsibilities
• Design and calculate mathematical models for slot games (RTP, volatility, hit rate, max win).
• Build and balance core game elements: paytables, reels / weights, wild & scatter logic, free spins, respins, multipliers, bonus features.
• Prepare complete mathematical documentation for implementation: formulas, rules, tables, edge cases, configurations.
• Run and analyze Monte Carlo simulations to validate RTP, payout distribution, and volatility.
• Prepare math validation reports.
• Support developers and QA during integration and testing phases.

Optional / Additional Responsibilities
• Research iGaming trends and competitor mechanics.
• Participate in the full game lifecycle (from concept to release).
• Analyze player behavior using mathematical and statistical data.

Requirements
• Commercial experience in slot math / casino game mathematics.
• Strong understanding of probability theory, combinatorics, and statistics.
• Clear understanding of RTP structure (base vs bonus contribution), volatility management, and feature triggers.
• Ability to produce clear and well-structured technical documentation for engineering teams.
• Strong analytical thinking, attention to detail, and ownership of results.

Nice to Have
• Confident knowledge of Python.
• Experience building simulation scripts / tools (config-driven, reproducible simulations, result export).
• Experience with jackpot / progressive models.
• Understanding of compliance and regulatory requirements in iGaming.

 

We're looking for a Marketing Generalist who can discover new commercial opportunities and turn them into measurable growth initiatives.
 

This is a builder role for someone who enjoys working with uncertainty, challenging existing approaches, and moving quickly from an initial insight to a real market test. You will work at the intersection of marketing, business development, technology, and AI to help us reach international clients and create new sources of demand.
 

Your success will be measured not by the number of activities completed, but by the quality of insights generated, experiments validated, and opportunities created for the business.
 

WHAT YOU WILL OWN:

• Develop a deep understanding target industries, buyer needs, services, expertise, and competitive advantages;
• Identify promising market segments, client problems, and opportunities for positioning existing or new service offerings;
• Create value propositions and campaigns that make complex software solutions relevant and understandable to business decision-makers;
• Build and manage a continuous pipeline of growth ideas, selecting the most promising ones for validation;
• Design and execute lean marketing experiments across content, search, paid channels, partnerships, and other acquisition opportunities;
• Use AI and automation to accelerate market research, campaign production, personalization, analysis, and testing;
• Define clear success criteria for every initiative and translate results into practical business decisions;
• Develop repeatable playbooks based on successful experiments and discontinue activities that do not show sufficient potential;
• Engage internal experts from Engineering, Delivery, R&D, Sales, and leadership to turn company knowledge into strong market-facing initiatives;
• Connect marketing efforts with qualified conversations, sales pipeline, and new business opportunities.
   

WHAT SUCCESS LOOKS LIKE:

• Company has a consistent flow of relevant, well-prioritized growth experiments;
• Marketing decisions are supported by data, customer insights, and real market feedback;
• New messages and offers clearly communicate the business value company expertise;
• Successful initiatives evolve into scalable customer acquisition approaches;
• Marketing contributes directly to qualified leads, sales opportunities, and signed contracts.
   

WHAT YOU BRING

• Experience in B2B growth, demand generation, or digital marketing, preferably within technology, professional services, or another complex industry;
• A track record of independently taking marketing initiatives from research and planning to launch and evaluation;
• Practical understanding of customer acquisition through content, SEO/AEO, paid campaigns, analytics, and lead-generation activities;
• Strong commercial judgment and the ability to connect marketing decisions with customer needs and revenue potential;
• Excellent communication and storytelling skills, especially when working with complex technical or business topics;
• Hands-on experience applying AI tools to research, content, automation, analytics, or campaign development;
• Confidence working in an environment where priorities may evolve and ready-made solutions are not always available;
• The ability to bring structure to ambiguity, make decisions, and maintain momentum without constant supervision;
• A habit of learning quickly, testing assumptions, and openly communicating both successful and unsuccessful results;
• Upper-Intermediate or higher English proficiency.

We are looking for a Safety Architect to join an automotive project in Stuttgart.
 

Mandatory requirements:

• Strong professional experience with C++
• Hands-on experience with ISO 26262 / Functional Safety
• Solid background in Automotive Embedded Software
• Availability to work on-site in Stuttgart
   

Responsibilities:

• Develop and integrate embedded software for automotive systems
• Work on safety-critical software components
• Collaborate with the automotive engineering team on ECU/platform development

ROLE OVERVIEW

We are looking for a Senior Full-Stack Software Developer with strong experience in Uniface and C#/.NET to develop and modernize healthcare software.

You will work across Back-end, Front-end, and AI-assisted development, building new features, improving existing functionality, and contributing to the evolution of an established healthcare product. Front-end development will involve React or Angular, while AI tools and modern development approaches will be used to support analysis, development, and modernization.

CUSTOMER AND PROJECT

Our Customer is a leading provider of software solutions for the healthcare sector, operating in 19 countries with more than 9,000 employees.

You will join an agile Scrum team developing software for medical information systems used by doctors and healthcare professionals.

The project focuses on the continuous development and modernization of an established healthcare platform. You will work with Uniface and C#/.NET alongside modern Front-end technologies and AI-powered development tools.

You will collaborate closely with Product Owners, QA specialists, architects, and other engineers to deliver reliable software and improve the product over time.

TECHNOLOGY STACK

• Uniface
• C#, .NET / .NET Core
• React / Angular
• Microservices, Vertical Slice Architecture
• Windows, Visual Studio
• Jira, Confluence
• Claude Code, AI Agents

• AI Pipelines, Skills, Workflows, Context Engineering

   

RESPONSIBILITIES

• Design and develop new features using C#, .NET, and Uniface
• Maintain, refactor, and optimize existing functionality and software architecture
• Develop and maintain Front-end features using React or Angular
• Contribute to architectural improvements, including Microservices and Vertical Slice approaches
• Use AI tools such as Claude Code and AI agents to support code analysis, development, refactoring, and documentation
• Build or integrate AI-powered features and intelligent workflows where relevant
• Explore and apply AI-assisted engineering practices, including agents, skills, workflows, and context engineering
• Collaborate with Product Owners, QA specialists, architects, and other engineers
• Participate in an agile Scrum team and contribute to high-quality releases

• Document development and optimization activities using Jira and Confluence

   

REQUIREMENTS

• Several years of commercial experience in software development
• Strong hands-on experience with Uniface and C#
• Good knowledge of .NET / .NET Core
• Commercial experience with React or Angular
• Experience with software development under Windows
• Understanding of modern software architecture, such as Microservices or Vertical Slice Architecture
• Experience working in an agile/Scrum environment
• Practical experience using AI tools in software engineering
• Experience with Claude Code, AI agents, skills, workflows, AI pipelines, or context engineering is a strong plus
• Experience developing or integrating AI-powered features is a plus
• Strong problem-solving, communication, and collaboration skills
• Degree in Computer Science, Software Engineering, or a comparable technical field
• Good English communication skills

ScrumLaunch is a software development company supporting fast-growing US startups across different industries. We work as an extension of our clients’ teams, helping them build and scale products with distributed engineering and product talent.

We’re currently looking for a Full Stack Engineer to join a healthcare project and collaborate with an international engineering team.

What you’ll do

• Work on a healthcare product as part of a distributed engineering team;
• Contribute to both frontend and backend development depending on project needs;
• Collaborate with engineers, QA, and project stakeholders;
• Participate in technical discussions, code reviews, and development of new features;
• Support and improve existing functionality.

What we’re looking for

• Strong commercial experience in software development;
• Experience with Node.js;
• Experience with Angular is preferred;
• Strong React experience;
• Good understanding of REST APIs and modern web application architecture;
• Experience working in cross-functional teams;

• Good English communication skills.

   

Nice to have

• Healthcare / HealthTech experience;

• Experience working with US-based clients or distributed international teams.

   

Cooperation terms

• B2B cooperation under a Consulting Agreement
• 12 days of Paid Time Off per year
• 5 days of Medical Time Off per year
• 3 paid holidays per year
• Psychologist Consultations for mental well-being
• Professional Development Budget — courses and conferences
• English lessons

We are looking for an Integration Team Lead to own everything that connects Equals 5 to the advertising platforms. This is a technical management role: you lead a team of 2–4 engineers, own the integration architecture and roadmap, and stay hands-on in the code. Every number our clients see in a dashboard starts as an API call one of your pipelines made, so reliability and data correctness land on your desk first. You report directly to the CTO and prioritise the roadmap together with the product team. Fully remote, EU timezones.

Requirements

General

• 2+ years leading engineers as a tech lead, team lead or hands-on engineering manager: code review, sprint planning, mentoring
• 5+ years in backend or data engineering, with production systems you supported yourself
• Experience integrating third-party APIs at scale: rate limits, OAuth flows, webhooks, async reports
• Comfortable in a fully remote team with hours overlapping EU timezones
• English B2 or above. Most of our communication is written and async

Technical

• Strong Python 3.11: production-grade code with error handling, structured logging and tests
• Data pipeline patterns in practice: idempotency, backfill, incremental sync, schema evolution
• GCP at the service-design level: Cloud Run services and jobs, Cloud Functions, Cloud Scheduler, Cloud Tasks, Cloud SQL, GCS, Secret Manager
• SQL well beyond the basics, and comfort putting real logic into it. A large part of this pipeline lives in BigQuery scheduled queries and versioned BigQuery migrations rather than in Python
• Writing FRDs and keeping technical documentation current: integration contracts, data models, runbooks. We do not have this discipline today, and establishing it is a core part of the role rather than a bonus
• Monitoring and alerting you set up yourself: Grafana, logs, retry and backfill strategies. Today every alert path ends in Slack
• Docker, and CI/CD you will own. These services currently deploy from hand-run scripts with no pipeline and no tests in CI. Building that out is part of the job, not something you inherit finished

Soft

• You lead in practice: you split work for other people, review their code, unblock them, and say no when that is the right answer
• Systems thinking: you see the full chain from API ingestion to the end-user dashboard
• When a number looks wrong, you trace it back to the source before you change anything
• Task management: your roadmap and your team’s board reflect what is actually happening, and you raise risks while there is still time to act on them
• Pragmatic and transparent, including when something breaks: you say what happened and why, early

AI baseline

AI-assisted development is how we ship, not something we are piloting. Concretely, what we expect from day one:

• Daily use of AI coding agents (Claude Code, Cursor, Codex or similar): required, not “I tried it once”
• 50%+ of the code you ship is drafted by agents and reviewed by you line by line
• Able to run 2–4 agents in parallel on isolated branches or worktrees and merge the results yourself
• You maintain agent context for your projects: CLAUDE.md / AGENTS.md, custom commands, rules files. At least 1 such artifact you wrote yourself and keep current
• You automate at least 1 recurring routine per month with an agent: reports, migrations, release checks, test generation
• You can tell when the agent is wrong and throw the output away. Whatever ships, you are the engineer on the hook for it — we ask about this in the interview

Nice to have

• Hands-on experience with the Meta Marketing API or the LinkedIn Marketing API: breakdowns, attribution windows, async reports
• Experience with a workflow orchestrator (Airflow, Prefect, Temporal). We run on Cloud Scheduler and Cloud Tasks today, and we want a view on whether that should change
• The programmatic and ad-server ecosystem: CM360, DV360, StackAdapt, TikTok
• Advertising metrics and how they are computed: impressions, clicks, conversions, ROAS, attribution models
• Healthcare or pharma domain, especially consent and PII handling
• Building agent harnesses, orchestrators or MCP servers; terminal-first workflow (tmux or equivalent)
• Infrastructure as code. Our infrastructure is in Pulumi, with Terraform for the monitoring stack

Responsibilities

• Own the architecture and evolution of all platform integrations: Meta Marketing API, LinkedIn Marketing API, CM360 and DV360, with StackAdapt and TikTok in flight
• Lead a team of 2–4 engineers: code review, sprint planning, mentoring, input into hiring
• Stay hands-on: you write code yourself as well as distributing it
• Design and maintain the pipelines end to end: ad-platform APIs into BigQuery through Cloud Run Jobs, onward into ClickHouse through Cloud Functions and Cloud Tasks, with a large share of the transformation in BigQuery scheduled queries
• Keep the smaller integrations healthy too, such as the five-minute PostgreSQL to Airtable sync
• Write the FRD before an integration starts and keep the technical documentation current after it ships
• Keep sync reliable: monitoring, alerting, error handling, retry and backfill strategies
• Build out CI/CD, secret handling and test coverage for these services
• Drive new integration projects from API evaluation to production rollout
• Prioritise the integration roadmap together with the product team
• Report to the CTO and agree architecture and technical standards with them

Tech stack

Python 3.11 · GCP (Cloud Run services and jobs, Cloud Functions, Cloud Scheduler, Cloud Tasks, Cloud SQL, GCS, Secret Manager) · BigQuery, ClickHouse, PostgreSQL · Docker, Cloud Build, Pulumi, Terraform · Grafana, Slack · Claude Code

What we offer

• Fully remote with flexible hours, overlapping EU timezones for syncs
• A direct line to the CTO: you shape the architecture and technical standards of the integration layer, and technical direction is agreed with the CTO rather than handed to you as tickets
• Paid AI tooling, including Claude Code
• Ad-platform APIs that fail in ways no documentation describes, at real data volumes
• A small team with no bureaucracy, where decisions happen the same day

About us

Equals 5 is a marketing data platform for pharma. Our clients are pharmaceutical brands, and the people their campaigns reach are verified healthcare professionals. Brand teams use our platform to run campaigns across Meta, LinkedIn and programmatic channels and to measure what those campaigns did. The data infrastructure behind it runs on GCP, with campaign statistics landing in BigQuery and ClickHouse. The team is small, fully remote across EU timezones, and ships every week.

Interview process

1. Intro call, 30 min — expectations both ways
2. Technical interview, 90 min — integration architecture, API experience, data pipeline design, and how you work with coding agents
3. Conversation with our product lead, 45 min

🚀 Project Description

orthoeye.digital builds a web platform for orthodontic clinics. Doctors upload 3D intraoral scans of the upper and lower jaw. The platform prepares the scans, splits them into teeth and gingiva, and gives Doctors tools for diagnosis and treatment planning.

This role owns the backend geometry: the mesh processing that runs on our servers between scan upload and the clinical tools. A separate team works on the machine learning models (segmentation, landmarks). You use their output, but you do not train models.

Stack: Angular + Three.js SPA, Node.js/Express API, Python services, native geometry code in C++, Docker on Linux workers.
 

✅ You are:

• A Middle or Senior engineer with commercial experience in computational geometry or mesh processing
• Strong in modern C++ (C++17 or later): memory, performance, profiling, building native libraries
• Have hands-on experience with triangle meshes: half-edge or similar structures, topology, normals, boundaries, non-manifold cases
• Have implemented or integrated algorithms such as mesh repair, hole filling, remeshing, decimation, Boolean operations, offsetting, or cutting by a plane or a curve
• Have used at least one geometry library in real work (CGAL, OpenMesh, libigl, VCG, Open3D, a commercial SDK, or similar)
• Good at the math behind it: linear algebra, spatial data structures (BVH, k-d tree), numeric precision and tolerances
• Can write tests for geometry code: fixtures, tolerance checks, regression checks
   

➕ Will be a plus:

• Experience with Polygonica or MeshLib
• Python, including C++ bindings (pybind11 or nanobind), numpy, trimesh
• Background in dental CAD/CAM, orthodontics, medical 3D, or 3D printing
• Contour projection onto surfaces, geodesic paths, signed distance fields, rigid registration (ICP)
• Evaluation of third-party SDKs: benchmarks, test sets, licence terms, headless deployment
• Docker, Linux, CMake, CI for native code
• Some Node.js/TypeScript, to read how the API calls your services
• Comfortable working with AI platforms and developer tools such as Cursor, Claude Code, or Codex
   

♟️ What We Expect from You:

• Own geometry decisions from start to end: choose the approach, prove it on test data, ship it
• Set clear tolerances and quality checks, and say plainly when an operation cannot meet them
• Make practical decisions that help us launch faster without unnecessary overengineering
• Use modern AI tools, frameworks, and approaches to work faster and more effectively
• Be comfortable working in an evolving product with changing priorities and early-stage ambiguity
   

🔑 Responsibilities:

• Сompare two commercial mesh processing SDKs on the same test set and help the team select one. Build the test corpus, the test harness and the gate tests, write the decision record, and write the adapter for the selected SDK
• Build scan preparation operations: inspect and repair meshes, remesh and decimate, cut by a plane or a contour, extrude a boundary and build a model base, smooth a region within limits
• Build segmentation finalization: project tooth contours onto the jaw surface, cut the mesh into labelled teeth and gingiva, keep the labels after remeshing
• Second half of the year: geometry for orthodontic appliances (Boolean operations, offset and shell thickness, exterior envelope, distance and contact queries, registration of two surfaces)
• Make each operation run headless on Linux workers, with clear inputs, outputs and error reports
• Write tests with fixtures and tolerance checks for each operation
• Actively collaborate with the tech lead, the ML team, and the frontend developers of the 3D viewers
• Utilize AI to review pull requests and contribute to engineering best practices
   

🍩 What we offer:

• Work on an innovative product in the medical-tech domain:
  • High ownership: you make the main geometry decisions in the product
  • A fast-moving environment where strong engineers can influence product and technical decisions
• Professional development support:
  • Paid 200$+ AI assistants and modern engineering tooling
• Full-time, long-term role (we want to start as soon as possible)
• Fully remote, from any location (we work in the European time zone and need a few hours of daily overlap)
• 20 days of vacation (business days)
• 5 days of sick leave
  • National holidays covered

🗣 Recruitment process:

• ✔️ Intro Interview → ☑️ AI Live Coding Task → ✅ Geometry Deep-Dive Interview → 🏁 Cultural-Fit Interview

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications, and regulatory technologies.

We are looking for a Senior Quality Assurance Engineer

Requirements:

At least 5 years of experience as a QA engineer (backend, frontend, API);
• Strong design and debugging skills;
• Experience of creation simple AT using Python;
• Understanding of client-server architecture, HTTP, HTML+CSS, Web APIs;
• Experience in testing REST APIs;
• Basic understanding of gRPC, ProtoBuf, and gRPC API testing principles;
• Basic understanding of Git and common Git workflows (branching, merge requests, resolving conflicts);
• Basic understanding of the Betting domain;
• Teamwork and collaboration focus;
• Expert in Test Design;
• Team player, Independent, and self-learner;
• English: intermediate or upper intermediate.

Will be plus:

• Experience with Xray;
• Experience with Git and GitLab CI/CD;
• Experience in testing gRPC Web APIs;
• Basic understanding of WebSocket protocol and real-time communication principles;
• Hands-on experience with test automation in Python (pytest + playwright);
• Experience with Grafana;
• Experience with Betting.

Responsibilities:

• Designing and executing test cases based on requirements and acceptance criteria;
• Performing functional, regression, exploratory testing to identify bugs or inconsistencies;
• Writing and maintaining test documentation, such as test plans, test cases, and bug reports;
• Working closely with developers, product managers, and other stakeholders to ensure that requirements are fully tested;
• Analyzing requirements for the features, asking questions, and clarifying details about future functionality;
• Automation contribution and maintaining existing automated tests in Python for UI/API;
• Collaborating with the development team to ensure timely fixes and re-testing of defects;
• Analyzing and tracking defects, verifying fixes, and ensuring they are resolved appropriately;
• Participating in test case reviews and improving test documentation based on feedback.

Our benefits to you:

• ☘️An exciting and challenging job in a fast-growing business group, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance, and more
• 🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed
• 🧑🏻‍💻Modern corporate equipment based on macOS or Windows and additional equipment are provided
• 🏖Paid vacations, sick leave, personal events days, days off
• 💵Referral program — enjoy cooperation with your colleagues and get the bonus
• 📚Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences
• 🎯Rewards program for mentoring and coaching colleagues
• ✈️In-house Travel Service
• 🦄Multiple internal activities: online platform for employees with quests, gamification, presents and news, clubs for movie / book / pets lovers and more
• 🎳Other benefits could be added based on your location 

You’ll be joining a product team that builds and scales complex internal and user-facing products used by 1M+ users across Tier-1 markets. Our ecosystem includes mobile apps for iOS and Android, high-load backend services, and internal admin tools that support multiple business lines in social networking and streaming. This role is about deep product understanding, strong backend testing, and real influence on quality — not just checking boxes, but improving how fast and reliably we ship features at scale.

In this role, you will
 

• Perform manual testing of iOS and Android applications, ensuring a high-quality user experience across mobile platforms
• Conduct smoke, sanity, regression, and functional testing for new features, releases, and product updates
• Validate backend functionality using API tools and databases, primarily MongoDB
• Create and maintain test documentation, including test cases, checklists, test plans, and bug reports
• Investigate, reproduce, and analyze defects, collaborating closely with developers to ensure timely resolution
• Participate in Scrum ceremonies and contribute throughout the Software Development Life Cycle
• Test and validate A/B experiments, ensuring accurate implementation and reliable results
• Work with internal systems, including admin panels and supporting tools, to verify end-to-end functionality
• Prepare testing reports and provide clear visibility into product quality and release readiness
• Drive continuous improvements in testing processes, coverage, efficiency, and overall product quality
  
  It’s all about you
   
• 3+ years of experience in Mobile QA with hands-on testing of iOS and Android applications
• Strong understanding of mobile application architecture, client-server interactions, and mobile testing best practices
• Experience with smoke, sanity, regression, and functional testing of mobile applications
• Practical experience in backend testing using API tools and databases, preferably MongoDB
• Experience working with cross-platform mobile applications (iOS / Android)
• Hands-on experience with proxy and traffic inspection tools such as Charles, Proxyman, or Fiddler
• Experience creating and maintaining test documentation, including test cases, checklists, and bug reports
• Experience working with test management systems such as Qase, TestRail, or similar solutions
• Strong bug investigation and troubleshooting skills
• Hands-on experience leveraging AI tools for test case creation, test documentation, requirements analysis, and defect investigation
• Understanding of Agile methodologies, Scrum processes, and SDLC
• Experience with MongoDB Compass
• Experience using Android Studio for testing and debugging

• B1 English or higher

  
  Would be a plus

• Experience in marketing-related testing
• Experience with A/B testing or understanding of experimentation processes
• Experience collaborating with Customer Support teams and investigating production issues
  
  What we offer
• Care and support: 
• 20 paid vacation days, 15 sick days, and 6 additional days off for family events
• Up to 10 additional days off for public holidays
• 100% medical insurance coverage
• Sports and equipment reimbursement
• Team building events, corporate gifts, and stylish merch
• Maternity Recovery Support Allowance
• Financial and legal support
• Position retention and support for those who join the Armed Forces of Ukraine
• Participation in social initiatives supporting Ukraine
   
• Comfortable working environment:
• Work from our Kyiv hub or remotely with a flexible schedule 
• Modern equipment or depreciation of your own tools
   
• Investment in your future:
• Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
• 70% of our heads and leads have grown into their roles here – so can you!
• Performance-oriented reviews and Individual Development Plans (IDPs)
• Reimbursement for professional courses and English classes
• Corporate library, book club, and knowledge-sharing events
  
  Hiring process
• Intro call
• Technical interview
• Test task
• Final  interview
• Reference check
• Offer

We are looking for a Product Manager to join United Tech and make a real impact on a product already loved by millions of users. Our goal is not just to grow fast, but to build a stable, high-quality experience. You’ll be working on mobile apps with a strong and active user base, enhancing their experience and driving key product metrics like LTV and conversion to payment. Your role will involve leading the development of new features, from ideation to launch, to support user growth and product monetization.

About the product: It’s a global streaming platform that connects people through live events, video chats, and real-time interactions. Our mission is to offer a fun, safe space for users worldwide to engage with streamers and communities. In the near future, we plan to expand into new markets, including Arab countries and Europe, and introduce exciting features to enhance monetization and user engagement. You will play a key role in shaping these new developments and helping the product achieve its ambitious goals.

Our global goal is to be a top 3 product in our niche, and we are focused on optimizing content quality, adding features that drive user retention, and strategic growth. With high-quality video, 24/7 streams, and a completely ad-free experience, we are redefining online entertainment. If you’re ready to contribute to the future of streaming and help us reach the top, we’d love to have you on board.

In this role, you will

• Analyze competitors, customer needs, and market trends, and uncover insights from analytics data
• Build and maintain a roadmap for your features to improve LTV and payments conversion
• Write clear and comprehensive PRDs to guide development

It’s all about you

• 2+ years of experience as a Product Manager with mobile apps in B2C products
• Proficient in data analysis and A/B testing
• Strong skills in analyzing user feedback and competitors
• Experience in planning and prioritizing product roadmaps aligned with business strategy
• Ability to prioritize hypotheses using frameworks like RICE
• Upper-Intermediate English or higher
• A collaborative team player with initiative and proactivity in proposing product improvements
• Data-driven and ownership mindset

What we offer

Care and support: 

• 20 paid vacation days, 15 sick days, and 6 additional days off for family events
• Up to 10 additional days off for public holidays
• 100% medical insurance coverage
• Sports and equipment reimbursement
• Team building events, corporate gifts, and stylish merch
• Financial and legal support
• Position retention and support for those who join the Armed Forces of Ukraine
• Participation in social initiatives supporting Ukraine
   

Comfortable working environment:

• Work from our Kyiv hub or remotely with a flexible schedule 
• Modern equipment or depreciation of your own tools
   

Investment in your future:

• Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
• 70% of our heads and leads have grown into their roles here – so can you!
• Performance-oriented reviews and Individual Development Plans (IDPs)
• Reimbursement for professional courses and English classes
• Corporate library, book club, and knowledge-sharing events
   

Hiring process

• Intro call
• Interview with Hiring Managers
• Test Task
• Final Interview
• Reference check 
• Offer