Jobs at Djinni

A backend-focused engineering position on a transformation project for an international travel company. The engineer will own features end-to-end - from planning and design through building, testing, and release.

Key Responsibilities 

-Own features end-to-end (plan, design, build, test, release) 

-Build and maintain Ruby on Rails systems 

-Contribute to full-stack work (Rails-heavy, with frontend involvement as needed) 

-Write tested, high-quality code 

-Use AI coding agents to maximize efficiency 

-Participate in code reviews 

-Maintain systems and resolve production issues 

-Collaborate with Product, Design, and Quality Engineering teams

Required Qualifications 

-Proficiency in Ruby on Rails with production experience 

-Strong database schema design and data modeling skills 

-RESTful API design experience 

-PostgreSQL and AWS infrastructure knowledge 

-Demonstrable experience with AI coding agents, or strong enthusiasm to adopt them 

-Good English 

-Team-oriented with strong communication skills 

-Pragmatic about speed/quality/scope tradeoffs

Tech Stack 

-Ruby on Rails, PostgreSQL, AWS, Next.js, Vercel. Trunk-based development with CI/CD and multiple daily deployments. 

Nice to Have 

-E-commerce or travel platform experience 

-An eye for UX/design 

-Travel enthusiasm

We offer:

• Attractive financial package

• Challenging projects

• Professional & career growth

• Great atmosphere in a friendly small team

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 Monitoring Manager to join our team!

Requirements:

- Understanding of the basics of search engines;
- Ability to search for necessary information on different GEO;
- Basic knowledge of Google docs/sheets, Google Analytics.

Will be plus:

- English language skills

Responsibilities:

- Collection and processing of data in areas requiring monitoring.
- Prompt submission of complaints when violations are identified.
- Interaction with platforms/support regarding complaint review processes.
- Analysis of identified violations and their classification by type and priority.
- Interaction with platforms/support regarding complaint review processes. (duplicate in original text)
- Tracking the effectiveness of submitted complaints and their outcomes.
- Maintaining and updating an internal database of websites.
- Researching new methods for submitting complaints.

What are the conditions and bonuses?

☘️An exciting and challenging job in a fast-growing product company, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and other;

🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed;

📍Beautiful offices in Warsaw, Limassol work remotely or on-site with comfort and enjoy the opportunity to build a network of connections with professionals day by day;

🧑🏻‍💻Laptop & all necessary equipment for work according to the ecosystem standards;

🏖Paid vacations, personal events days, days off;

🫖Paid sick leave;

👨🏻‍⚕️Medical insurance;

💵Referral program enjoy cooperation with your colleagues and get the bonus;

📚Educational support by our L&D team: internal and external trainings and conferences, courses on Udemy;

🗣Free internal English courses;

🧘Sport benefit;

🦄Multiple internal activities: online platform for employees with quests, gamification and presents for collecting bonuses, RedCore talks club for movie and book lovers, board games cozy evenings, special office days dedicated to holidays;

🎳Company events, team buildings.

Team Lead Infrastructure / NOC-SRE Lead

We are hiring for our partner — an international crypto payments company — and are looking for a Team Lead Infrastructure / NOC-SRE Lead to lead an infrastructure and production operations team.

This is a hands-on leadership role: you’ll manage the NOC / Infrastructure / SRE team, improve operational processes, own incident management and escalations, while staying technically involved in complex Linux, networking, and database troubleshooting.

What you’ll do

• Lead and develop the NOC / Infrastructure / SRE team

• Organize shifts, on-call rotations, escalations, and team coverage

• Own incident management: alerts, routing, SLA/SLO, escalation, and postmortems

• Drive RCA and problem management

• Build and improve operational processes in Jira, Confluence, KB, and task trackers

• Improve monitoring, alerting, and observability

• Coordinate with Development, QA, DevOps, and Product teams

• Take hands-on involvement in complex production incidents

• Troubleshoot Linux, networking, and databases at L3 level

• Create and maintain documentation, runbooks, procedures, and operational standards

• Mentor engineers and ensure the quality and consistency of the team’s work

• Continuously improve infrastructure reliability and operational efficiency

What we’re looking for

• Previous experience as a Team Lead, NOC Lead, Infrastructure Lead, or SRE Lead

• Proven experience managing and mentoring an engineering team

• Experience supporting production and business-critical services

• Strong background in incident management and escalation processes

• Practical experience with RCA, postmortems, and problem management

• Solid Linux administration background

• Strong networking fundamentals: TCP/IP, routing, DNS, DHCP, NAT, VPN

• Experience with monitoring and alerting tools such as Zabbix, Grafana, Prometheus, Alertmanager, New Relic, Splunk, or similar

• Experience with Jira, Confluence, knowledge bases, or similar tools

• Ability to build effective processes without unnecessary bureaucracy

• Willingness to remain hands-on, not purely managerial

• English sufficient for technical documentation and communication

Nice to have

• SRE background

• Kubernetes / Docker

• Terraform / Helm / GitLab CI

• Cloud experience: GCP / AWS / Azure

• PostgreSQL / MySQL

• MikroTik / L2-L3 switches / VLAN

• Experience with 24/7 production operations

• Background in fintech, crypto, highload, or e-commerce

If you’re an experienced infrastructure leader who can combine team management, operational excellence, and deep technical expertise, we’d love to hear from you.

We are hiring for our partner — an international crypto payments company — and are looking for a strong Senior Linux System Administrator to join their production infrastructure team.

You’ll work on a B2B crypto payments product, supporting reliable and secure production infrastructure. This is a hands-on role focused on Linux, networking, infrastructure troubleshooting, system performance, and production stability.

This is not a Helpdesk, Windows/M365, or end-user support position.

What you’ll do

• Administer and maintain production Linux servers

• Perform L3 troubleshooting across Linux, networking, services, and databases

• Monitor and troubleshoot CPU, memory, disk, I/O wait, inodes, load average, and systemd

• Work with TCP/IP, routing, NAT, firewalls, and traffic management

• Configure and support OpenVPN / WireGuard

• Work with iptables / nftables

• Administer and troubleshoot MikroTik

• Support PostgreSQL / MySQL, including backups, restores, users, and basic diagnostics

• Investigate incidents and perform Root Cause Analysis (RCA)

• Maintain technical documentation, runbooks, and knowledge bases

• Perform production changes carefully with change plans, backups/snapshots, and rollback procedures

• Automate routine tasks using Bash, Python, or Ansible

What we’re looking for

• 5+ years of Linux system administration experience

• Strong hands-on experience with Ubuntu / Debian / CentOS

• Confident with systemd, journalctl, dmesg

• Strong performance troubleshooting skills: OOM, CPU pressure, I/O wait, disk pressure, inodes

• Solid understanding of TCP/IP, routing, NAT, and firewalls

• Experience with OpenVPN or WireGuard

• Experience with iptables or nftables

• Hands-on experience with MikroTik

• Experience supporting PostgreSQL / MySQL, including backup and restore

• Understanding of production safety and change management

• Experience with RCA / problem management

• English sufficient for reading technical documentation

Nice to have

• Ansible

• Bash / Python scripting

• Nginx / HAProxy

• Experience with highload, crypto, fintech, payments, hosting, or telecom

Details

Schedule: shift-based

• 08:00–17:00

• 09:00–18:00

• 15:30–00:30

If you enjoy solving complex production incidents, digging into root causes, and keeping infrastructure stable and reliable in a crypto payments environment, we’d love to hear from you.

We are hiring for our partner — an international crypto payments company — and are looking for an IT Infrastructure / L3 Support Engineer to join an established infrastructure team.

You’ll work on a B2C product, supporting internal and production infrastructure across Linux, Windows, Microsoft 365, identity management, networks, databases, backups, and containers.

This is a hands-on L3 infrastructure role for a system administrator who enjoys solving technical issues across different areas rather than focusing on just one technology.

What you’ll do

• Administer Linux and Windows guest operating systems

• Provide L3 infrastructure support and troubleshoot complex technical issues

• Administer Microsoft 365 environments

• Manage Microsoft Entra ID / Azure AD

• Manage users, accounts, permissions, licenses, and corporate access

• Administer Slack and related integrations

• Manage domains and corporate working environments

• Support corporate networks and network security

• Work with pfSense / MikroTik

• Support databases and business applications

• Perform backup and restore operations

• Work with Docker / containers and basic automation

• Monitor infrastructure, investigate logs, and troubleshoot incidents

• Maintain technical documentation, task trackers, and knowledge bases

What we’re looking for

• 3+ years of experience in System Administration / IT Infrastructure

• Strong hands-on experience with Linux and Windows

• Practical experience with Microsoft 365 administration

• Experience with Microsoft Entra ID / Azure AD

• User, account, access, and permission management

• Good understanding of corporate networking

• Hands-on experience with pfSense or MikroTik

• Experience supporting databases, including backup and restore

• Experience with Docker or similar container technologies

• English sufficient for reading technical documentation

• Comfortable working in a shift-based schedule

• Strong attention to detail and ability to follow established processes

Nice to have

• Slack administration

• Entra ID ↔ Slack integrations

• Bash / Python scripting

• Ansible

• Experience in a B2C / product company

• Experience with task trackers and knowledge bases

• Nginx / HAProxy

Details

Schedule: shift-based

• 01:30–09:30

• 09:00–18:00

• 17:00–01:00

You’ll join an established team and work across a broad infrastructure stack, combining system administration, L3 troubleshooting, identity management, networking, and infrastructure support.

We are looking for a Middle/ Middle+ PHP Developer to join a long-term project focused on building and evolving a complex data-processing platform in the Construction Technology domain.

This role is centered around backend architecture, high-load systems, and real-time data processing. You will be responsible for designing scalable services, managing asynchronous data flows, and ensuring reliable ingestion and processing of IoT device data.

The platform plays a key role in workforce tracking, operational efficiency, and automation of field processes. It processes large volumes of real-time data and applies complex business logic for workforce scheduling and analytics.

This is a backend-focused role with high ownership and impact on system architecture and performance.
 

Benefits

• Opportunity to solve complex architectural and high-load challenges
• Professional growth within a scaling tech company
• High-impact role in a real-world IoT and data-driven product
• Work with modern backend technologies and distributed systems
• Remote-first environment with flexibility and autonomy
   

About the Client

International product company in the Construction Technology domain, focused on automating workforce management processes through IoT and cloud-based solutions.

The product replaces manual time tracking with automated data collection, improves payroll accuracy, and enables real-time tracking of workforce operations and analytics.
 

About the Project

The platform’s core processing system is responsible for IoT data ingestion, real-time processing, and advanced workforce scheduling logic.

The system provides real-time dashboards and analytics for operational decision-making.
 

Location: United States

Duration: long-term
 

Requirements

• 3+ years of commercial experience with PHP in backend development
• Strong expertise in Laravel and its ecosystem in production environments
• Deep knowledge of PostgreSQL, including optimization, indexing, and schema design
• Experience with Laravel Jobs and queue systems (Redis, SQS)
• Solid understanding of RESTful APIs and third-party integrations
• Experience with Eloquent ORM performance tuning and N+1 query prevention
• Familiarity with Docker and containerized development
   

Additional Requirements

• Strong understanding of SOLID principles and clean code practices
• Strong problem-solving skills and attention to detail
• Experience working in Agile/Scrum environments
• Upper-Intermediate (B2+) English level for spoken communication
   

Responsibilities

• Design and implement scalable backend services and APIs
• Architect and evolve backend systems for high-load environments
• Optimize complex database queries to handle large volumes of real-time data
• Build and manage asynchronous processing using queues and background jobs
• Ensure reliable ingestion and processing of IoT-driven data streams
• Conduct code reviews and maintain high standards of code quality
• Refactor legacy components into modern, maintainable service patterns
• Collaborate with product and engineering teams to translate business requirements into technical solutions
   

🇺🇦 Additional Notes

• We consider candidates both in Ukraine and abroad
• For specialists based in Ukraine, we provide the option of official booking (reservation)

We’re Hiring: Customer Support Manager

Our mission: to deliver world-class gaming experiences by providing fast, reliable, and customer-centric support that builds trust, satisfaction, and long-term loyalty. We are looking for a Customer Support Manager to manage our support daily operations and ensure an outstanding experience for every player.

Now we are looking for Customer Support manager, who will cover 3PM-11PM shifts by London time

What You’ll Do:

• Deliver high-quality, timely, and professional assistance across all communication channels, including some of cold, reactivation or  up-sell outbound outreaches (live chat, email, etc.);
• Ensure hitting personal KPIs (list of KPIs) and continuous improvement;
• Participate in developing and optimizing support processes, workflows, and internal knowledge bases to increase efficiency and service quality;
• Handle complex escalations and ensure that critical cases are resolved quickly and in line with company standards;
• Gather and analyze customer feedback and support data to identify trends, pain points, and opportunities for product and service improvements;
• Ensure compliance with regulatory requirements and internal policies in all customer communications.
  
   

What We’re Looking For:

• Proven experience in Customer Support management within the iGaming, gambling, or similar fast-paced digital industries;
• High level of autonomy in resolving customer requests or going through a proper escalation process;
• Deep understanding of customer service KPIs, quality assurance processes, and performance management.
• Data-driven mindset with the ability to identify trends and turn them into improvement suggestions.;
• Excellent communication skills and a customer-first approach, + fast typing and proficient PC / Internet user;
• Ability to manage multiple priorities, adapt quickly to change, and stay solution-oriented under pressure.
  
   

Experience:

• 1+ years of experience in Customer Support. 
• English B2+ level.
  
   

Why You Should Join Us:

• Competitive Compensation: Enjoy a competitive salary and performance-based bonuses.
• Remote Flexibility: Work from anywhere as part of an international and geographically diverse team.
• Professional Growth: We invest in your career development with learning opportunities and clear growth paths.
• Exciting Challenges: Join a fast-growing company at the forefront of the iGaming industry.

Apply now and help us elevate the player experience, build a world-class support function, and make a lasting impact in the iGaming world.

We are looking for a Lead DevOps / Observability Engineer to lead the migration of the client's observability stack from New Relic and Datadog to Grafana, using technologies such as Prometheus, Loki, and Tempo.

This is a hands-on role combining:
- DevOps & platform engineering - deploying and configuring the new observability stack using AWS, Kubernetes, and Terraform.
- Application instrumentation - modifying application code to add or adapt metrics, logs, and traces.
- Migration & collaboration - rebuilding existing dashboards and alerts in Grafana and working with multiple engineering teams to ensure full monitoring coverage.

We are looking for someone who is comfortable working across both infrastructure and application code and can independently drive a cross-team observability migration.

Responsibilities:

• Lead the migration of monitoring, alerting, and dashboards from New Relic and Datadog to Grafana.
• Design and implement the target observability architecture (metrics, logs, traces) and the infrastructure-as-code (Terraform) needed to support it.
• Audit existing New Relic and Datadog dashboards, alerts, and integrations to build a complete migration inventory and ensure feature/coverage parity in Grafana.
• Make application-level code changes across services to add, adjust, or replace instrumentation (metrics exporters, logging, tracing libraries) as needed for the new stack.
• Work with AWS infrastructure, including EKS, Kubernetes, and Docker, to deploy and operate the new observability tooling.
• Configure AWS networking and access as needed to support the observability platform (VPCs, security groups, IAM).
• Contribute to CI/CD pipelines and deployment automation using GitHub Actions to support the rollout.
• Collaborate with development, platform, and infrastructure teams to coordinate the cutover from New Relic/Datadog to Grafana with minimal disruption.
• Identify and remediate any security issues (secrets, keys, dependencies) encountered in the course of this work.
• Document the new observability architecture, migration procedures, and dashboard/alert mappings.
• Use AI-assisted development tools, including Codex, to improve engineering productivity and delivery speed.

Requirements: 

• Strong hands-on experience with Grafana, including dashboard design, alerting, and data source configuration (e.g. Prometheus, Loki, Tempo, or similar).
• Practical experience migrating away from commercial observability platforms such as New Relic and/or Datadog.
• Full-stack development experience — comfortable reading, modifying, and instrumenting application code across front-end and back-end services, not just infrastructure.
• Solid experience with AWS in production environments, including EKS and Kubernetes.
• Practical experience with Docker and containerized workloads.
• Strong Terraform and infrastructure-as-code skills.
• Experience with GitHub Actions or comparable CI/CD tools.
• Ability to work across multiple teams, services, and codebases to coordinate a cross-cutting migration.
• Fluency with Codex or comparable AI-assisted coding tools.

Nica to have:

• Prior experience running a similar New Relic/Datadog-to-Grafana (or equivalent) observability migration end to end.
• Grafana-specific certifications or demonstrated community contributions (plugins, dashboards, etc.).
• Experience with the broader Prometheus/Loki/Tempo (LGTM) ecosystem.
• AWS certification, such as AWS Solutions Architect Associate/Professional.
• Experience with RDS and other AWS data services.
• Prior contract or consulting experience with clearly defined deliverables.
• At least an Upper-Intermediate level of English 

Join a growing DevOps community at Sigma Software and build hands-on experience with modern cloud infrastructure, CI/CD pipelines, automation, and Infrastructure as Code. We are looking for a Junior DevOps Engineer eager to develop technical expertise while working alongside experienced professionals on international projects.

You will become part of a top-notch DevOps team of more than 30 specialists collaborating across cloud-native platforms, enterprise systems, and scalable digital products. We as a company support continuous learning, mentoring, certification growth, and transparent career development.

This role is a great opportunity for engineers who want to strengthen their cloud and automation skills in a collaborative environment with access to Senior and Principal-level mentorship.

Requirements

• 1+ years of hands-on experience with at least one public cloud platform: AWS, Azure, or GCP
• Solid understanding of Linux administration and networking fundamentals including TCP/IP, DNS, HTTP/HTTPS, services, packages, and system metrics
• Understanding of CI/CD principles and practical exposure to GitHub Actions, GitLab CI, Azure DevOps, Jenkins, or TeamCity
• Understanding of containerization concepts and practical experience with container images and runtime environments
• Scripting experience using Shell and either Python or PowerShell
• General understanding of Infrastructure as Code and configuration management tools such as Terraform and Ansible
• Understanding of SDLC processes and DevOps principles
• Basic knowledge of databases, monitoring, logging, backup, storage, and security concepts
• Understanding of authentication and authorization concepts, TLS, and secure secrets management
• Experience using AI assistants responsibly while validating outputs and maintaining data security standards
• Good communication and collaboration skills
• At least an Upper-Intermediate level of English

WILL BE A PLUS:

• Experience with Kubernetes or other orchestration platforms
• Hands-on experience with Terraform or Ansible in production environments
• Experience with centralized logging and monitoring tools such as Prometheus, Grafana, ELK Stack, CloudWatch, or Datadog
• Exposure to GitOps practices
• Familiarity with AI/LLM services or vector databases in infrastructure-related scenarios
• Cloud or Linux-related certifications

Personal Profile

• Strong willingness to learn and grow within a professional DevOps environment
• Proactive and ownership-oriented mindset
• Ability to collaborate effectively in cross-functional teams
• Attention to detail and structured approach to operational tasks
• Good analytical and problem-solving skills

Responsibilities

• Set up, configure, test, and maintain infrastructure across development, staging, testing, and production environments
• Contribute to Infrastructure as Code implementation following established modules, conventions, and review processes
• Support CI/CD pipeline configuration, maintenance, release preparation, and deployment activities
• Investigate incidents by collecting logs and monitoring evidence, performing initial triage, and documenting resolutions
• Configure monitoring checks, alerts, and participate in backup and recovery procedures
• Follow security best practices including least-privilege access management and secure secrets handling
• Maintain infrastructure documentation, deployment instructions, architecture diagrams, and operational runbooks
• Collaborate with developers, QA engineers, security specialists, and operations teams
• Continuously improve technical skills through mentoring, certifications, and project participation

Lead Engineer | Node.js, React Native, AI Agents

Location: London / hybrid preferred, or remote from Central & Eastern Europe
Level: Mid-to-Senior, hands-on Lead
Employment: Full-time, permanent

About the company

We are an early-stage UK product company building an AI-powered platform focused on professional relationships and network intelligence.

The product combines a social graph, relationship data and an AI agent that helps users identify relevant people, understand their network and strengthen important connections.

We are looking for a Lead Engineer / Founding Senior Engineer who will own the technical architecture, write production code and help grow the engineering team.

This is a hands-on engineering role, not a pure management position.

Tech stack

• Node.js / TypeScript / Express
• React Native + Expo
• MongoDB Atlas
• Atlas Vector Search + BM25 / hybrid retrieval
• OpenAI / custom LLM tool-calling agents
• AWS EC2, Cognito, S3
• Docker, Nginx
• GitHub Actions / CI/CD

Responsibilities

• Own technical architecture and production infrastructure
• Ship features across backend, mobile and AI agent layers
• Build and improve LLM agents, prompts, tool-calling flows and evaluation
• Mentor engineers and establish strong engineering practices
• Implement privacy-by-design and GDPR requirements
• Build and use synthetic data for development, testing and model evaluation
• Own CI/CD, monitoring, secrets management and incident response
• Own application and infrastructure security
• Secure AI agents against prompt injection, data leakage and unintended tool actions
• Work directly with the Founder on product and architecture decisions

Must-have

• 4+ years of professional software engineering experience
• Strong Node.js / TypeScript backend experience
• Experience owning real production systems
• Comfortable across backend, frontend/mobile and infrastructure
• MongoDB or similar document database experience
• Hands-on experience building LLM agents and prompting systems
• Experience with agent tool usage and evaluation
• Practical GDPR and data privacy knowledge
• Strong security fundamentals
• Understanding of AI-agent risks such as prompt injection, data leakage and unintended actions
• Experience working with synthetic data
• Production deployment, monitoring and incident-response experience
• Previous mentoring or technical leadership experience
• Comfortable with ambiguity and a fast-moving startup environment

Nice-to-have

• React Native / Expo
• RAG / vector search
• AWS Cognito
• Previous Tech Lead, CTO or founding engineer experience
• Application security / pentesting background
• Experience securing LLM / AI-agent applications

Compensation

Competitive salary + equity depending on experience and location.

We are looking for someone interested in a long-term role and growing together with the company, not a freelance or short-term contract position.

About the Client

Our client is a leading global healthcare organization, driving innovation in pharmaceuticals, biotechnology, and patient-centric solutions.

We develop advanced data and analytics solutions that help global organizations turn complex data into intuitive digital tools, enabling teams to make informed decisions in their daily operations and long-term strategy. Our projects span modern operational applications, interactive dashboards, and advanced analytics platforms designed to deliver actionable insights across multiple business domains.

About the Role

We are looking for a proactive and analytical Market Research Analyst to support strategic decision-making in the aesthetics medicine industry, with a focus on the Facial Injectables market.

The role involves conducting market, industry, competitor, financial, digital, and brand research, identifying relevant trends and opportunities, and translating research findings into clear, actionable insights for senior and executive leadership.

The successful candidate will work with both quantitative and qualitative information, research companies and markets using multiple sources, identify meaningful patterns and business implications, and communicate findings through structured analyses and executive-level presentations. The scope of the role may evolve depending on business priorities and emerging research needs.

Key Responsibilities

• Conduct market, industry, competitor, and company research to support strategic decision-making.
• Monitor competitor activities, product developments, strategic initiatives, geographic expansion, investments, and other relevant market developments.
• Analyze company financial performance, including revenue dynamics, business segments, margins, cost structure, and profitability drivers.
• Research competitor digital presence, brand positioning, messaging, PR strategies, product focus, and audience engagement across relevant channels.
• Monitor industry trends, emerging players, high-growth segments, industry events, and other market signals to identify risks and opportunities.
• Synthesize information from multiple sources into clear, actionable business and strategic insights.
• Prepare PowerPoint presentations and executive-level reports communicating key findings, trends, implications, and recommendations.
• Use existing Power BI dashboards and other analytical tools to support research and analysis.
• Maintain structured research materials, trackers, datasets, and research libraries.
• Conduct ad hoc research and analysis and support other market research initiatives as business priorities evolve.
• Organize all collected intelligence into a document library for future AI ingestion.
• Proactively suggest improvements to research methodologies, data sources, and analytical processes.

Required Skills & Experience

• 4+ years of experience in market research ( competitive intelligence, business analysis, strategy, consulting, or a related analytical role).
• Relevant experience in pharmaceuticals, medical devices, aesthetics medicine, healthcare, or a closely related industry is required.
• Proven experience conducting market, industry, company, or competitor research and analyzing both quantitative and qualitative information.
• Experience analyzing financial performance, business models, market dynamics, or similar business metrics.
• Strong PowerPoint and Excel skills.
• Ability to independently structure research, identify relevant and reliable sources, and synthesize findings into clear business insights.
• Excellent written and spoken English.
• Strong attention to detail, organization, and accuracy.
• Proactive and self-motivated, with the ability to work independently and communicate findings clearly to senior stakeholders.

Nice to have

• Experience with Power BI or other data visualization tools
• Experience analyzing digital and social media presence, brand positioning, or PR strategies.
• Experience preparing presentations and reports for senior or executive leadershi

Looking to take your .NET expertise to the next level while working on high-impact FinTech solutions? This role offers the chance to contribute to scalable, cloud-native systems that empower thousands of businesses worldwide.
We’re seeking a Senior .NET Developer to join our team, collaborating with talented engineers, product managers, and designers to deliver innovative financial technology.
At Sigma Software, we work with some of the most forward-thinking companies in the industry. This opportunity will let you grow professionally while making a tangible difference in a fast-paced, regulated environment.

CUSTOMER

Our customer is a leading FinTech company providing embedded financing solutions for platforms and marketplaces. Their mission is to enable businesses to offer flexible credit products to customers, helping SMEs access funding quickly and efficiently.
The customer is recognized for innovation in embedded finance, serving thousands of businesses globally and partnering with major platforms. They operate in a regulated environment with a strong focus on scalability, performance, and security.

PROJECT

The project involves enhancing and expanding customer’s embedded finance platform, which integrates directly into partner services to deliver fast, flexible funding to SMEs. You’ll work on a modern tech stack, building features that improve customer and partner experiences while ensuring reliability in production.
Key Technologies: C#, .NET Core, Angular 18, AWS, CI/CD, Docker/Kubernetes, Kafka/RabbitMQ, Datadog, relational & NoSQL databases

Job Description

• Design, build, and deliver features and projects across C#, .NET Core, and Angular stack
• Write clean, maintainable, and well-tested code (unit/integration/e2e)
• Take ownership of features from requirements breakdown to deployment
• Deploy and monitor services in AWS cloud-native environments
• Handle production issues and incidents with accountability
• Collaborate with Product, Design, and Engineering teams in Agile practices
• Contribute to continuous improvement of systems and processes

Qualifications

• 5+ years of experience in software development with strong OOP and system design skills
• Solid hands-on experience with .NET (C#) and Angular
• Understanding of software testing concepts and practices
• Expertise in cloud-native and DevOps practices (CI/CD, automation, monitoring)
• Experience with relational and NoSQL databases
• Knowledge of non-functional requirements (performance, security, availability)
• Proven experience in FinTech, payments, banking, or regulated financial environments
• Upper-Intermediate English level or higher

WILL BE A PLUS

• Experience with Docker/Kubernetes
• Familiarity with event-driven architectures (Kafka, RabbitMQ)
• Proficiency with observability tools (Datadog or similar)
• Knowledge of domain-driven design (DDD) and complex domain modeling

PERSONAL PROFILE

• Growth mindset, curiosity, and proactivity
• Strong problem-solving skills balancing complexity and simplicity
• Feedback-oriented, open to giving and receiving constructive input
• Ownership & accountability in delivering commitments
• Team player with strong collaboration skills
• Adaptability to changing priorities
• Excellent communication skills across disciplines

Experience: 4+ years
Project Duration: September 14, 2026 – September 1, 2027
Format: Remote
Location: Poland

About the Project

We are looking for a Data Engineer to join a core data team supporting a strategic client engagement.

The role combines application maintenance and support (AMS) with new development, providing an opportunity to work across the full data lifecycle. The main focus will be on data transformation, data warehousing, and dimensional modeling within a modern cloud-based data platform.

You will work closely with business stakeholders to understand data requirements, translate them into technical solutions, and deliver high-quality, scalable data products.

Responsibilities

• Work across the full data lifecycle, combining AMS activities with new development
• Collaborate with business stakeholders to understand data requirements and translate them into technical solutions
• Develop scalable and high-quality data products within a cloud-based data platform
• Perform data transformation, data warehousing, and dimensional modeling
• Apply Data Vault 2.0 concepts and data warehouse design principles
• Contribute to data integration and ETL/ELT processes
• Analyze and optimize SQL queries and data processing performance

Requirements

• 4+ years of experience in Data Engineering or Data Warehousing projects
• Strong hands-on experience with Snowflake
• Advanced SQL skills, including complex query development and performance optimization
• Experience with data transformation and dimensional modeling
• Knowledge of Data Vault 2.0 methodology and data warehouse design principles
• Ability to gather business requirements and translate them into effective technical solutions
• Experience working directly with business stakeholders and non-technical users
• Familiarity with data integration and ETL/ELT processes
• Strong analytical and problem-solving skills
• Good English communication skills (minimum B2, preferably C1)

Tech Stack

• Data Engineering
• Data Warehousing
• Snowflake
• SQL
• Data Vault 2.0
• ETL / ELT

For our client, we are looking for an experienced Information Security Manager / ICT Risk Manager (m/f/d) with a strong focus on information security, governance, and ICT risk management.

In this role, you will be responsible for the continuous development and operation of the Information Security Management System (ISMS) as well as the management and oversight of ICT risks in an international environment. You will act as the key interface between business units, management, external service providers, and audit partners, ensuring compliance with regulatory and security-related requirements.

The role is less focused on operational security administration and more focused on risk management, governance, documentation, compliance, and managing external partners.

Start: ASAP

Duration: 3-6 months

Workload: Full-time

Location: Remote i. EU

Language: English

Responsibilities

- Develop, maintain, and operate the Information Security Management System (ISMS) in accordance with ISO 27001

- Identify, assess, and monitor ICT risks

- Create and maintain policies, processes, and security-related documentation

- Support the implementation of regulatory requirements in the field of information security

- Prepare, conduct, and support internal and external audits

- Coordinate and manage compliance and audit-related activities

- Perform risk assessments and derive appropriate mitigation measures

- Manage and assess suppliers, third-party risks, and vendor risks

- Collaborate closely with business units, management, and external stakeholders

- Support business continuity and operational resilience initiatives

- Promote security awareness and information security practices throughout the organization

- Requirements

Must-Have

- Several years of hands-on experience in Information Security, ISMS, ICT Risk Management, or Governance

- Strong knowledge of ISO 27001 and practical experience applying the framework

- Experience in establishing, operating, or further developing ISMS structures

- Proven experience in risk management and conducting risk assessments

- Knowledge of audit, compliance, and governance processes

- Experience in creating and maintaining regulatory documentation

- Excellent communication and stakeholder management skills

- Structured, independent, and accountable way of working

- Business fluent English skills

Nice-to-Have

- Knowledge of regulatory frameworks and requirements such as DORA, NIS2, MaRisk, BAIT, or similar standards

- Experience within Financial Services, Banking, or FinTech environments

- Experience in Third-Party Risk Management and Vendor Risk Management

- Knowledge of Business Continuity Management (BCM)

- Relevant certifications such as:

ISO 27001 Lead Implementer

ISO 27001 Lead Auditor

CISM

CISSP

CRISC

CISA

Personal Attributes

- Hands-on mentality

- Strong sense of ownership and responsibility

- High level of initiative

- Analytical mindset

- Pragmatic and solution-oriented approach

- Confident communication with management and business stakeholders

- Enjoys working in international and dynamic environments

Domain: Banking & Finance
Experience: 5+ years
Project Duration: August, 2026 – November, 2026(to be extended)
Format: Hybrid
Location: Kraków, Poland

About the Project

We are looking for a Python Developer with AI expertise to join a team of engineers building strategic AI and machine learning solutions that are transforming the Credit and Lending industry.

Working in a dynamic, innovative, and well-established environment, the selected specialist will collaborate closely with business stakeholders to deliver impactful, production-grade AI solutions.

This role is a great fit for an engineer who enjoys leading technical initiatives and applying modern AI technologies to solve complex business challenges.

Responsibilities

• Design, develop, and maintain clean, scalable, and well-tested software solutions
• Lead the architecture and implementation of AI/ML systems, ensuring reliability, scalability, and alignment with long-term platform goals
• Take ownership of major AI initiatives from solution design through deployment and operationalization
• Support and mentor other engineers, promoting engineering excellence, collaboration, and continuous learning
• Help define and promote engineering standards, AI governance practices, and responsible AI principles across the organization
• Contribute to the technical roadmap by researching, evaluating, and prototyping emerging technologies, including advanced RAG approaches, LLM optimization techniques, and agent-based systems
• Collaborate with cross-functional stakeholders to translate business needs into effective technical solutions and clearly communicate complex concepts
• Build advanced AI-powered applications using Retrieval-Augmented Generation (RAG), vector databases, and large-scale financial datasets

Requirements

• 5+ years of strong commercial experience with Python
• At least 6–12 months of hands-on experience within the broader AI/ML ecosystem
• Practical experience with relational databases such as PostgreSQL, vector databases, key-value stores such as Redis, and Pub/Sub messaging systems
• Deep understanding of microservices architecture, API design, observability, and concurrent/distributed systems
• Ability to make and drive architectural decisions in complex technical environments
• Strong knowledge of modern LLM architectures and hands-on experience adapting and fine-tuning models for domain-specific use cases
• Practical expertise in Retrieval-Augmented Generation (RAG), prompt engineering, and related generative AI techniques

Nice to Have

• Exposure to Java, particularly for integration and middleware-related tasks

Tech Stack

• Python
• AI / Machine Learning
• PostgreSQL
• Redis
• Microservices
• APIs
• LLMs
• RAG

Location

• Hybrid from Kraków, Poland
• Important: the client requires office visits in Kraków 8 days per month