LivePerson is hiring a NOC Supervisor to act as the first escalation point for NOC issues, ensure shift operations meet predefined SLAs, manage the NOC shift schedule and administrative needs, track open incidents, and handle system access requests. Preferred qualifications include experience supporting/troubleshooting web/SaaS applications, proficiency with Windows and Linux, and familiarity with cloud platforms (GCP), monitoring/observability tools (Zabbix, Datadog, Kibana, Grafana) and Kubernetes.

Kraken seeks a remote Client Engagement Specialist on a 6-month fixed-term contract to manage client onboarding and verification (KYC document review), assist with fiat funding and withdrawals, handle email and live chat inquiries, escalate suspicious documentation, and adhere to AML/CTF and QA/risk frameworks. Requires 2+ years in customer service or business support, willingness to work 24/7 rotating shifts, strong crypto knowledge, and English fluency. Experience with AML/KYC processes and CRM tools (ZenDesk, Salesforce) is desirable.

Join LivePerson as a Technical Support Engineer II to resolve complex technical issues for enterprise customers, collaborate with product and development teams, analyze recurring issues to improve support tools/processes, mentor team members, and work 24/7 shifts including on-call duties. Requires a minimum of 3 years in Tier 2/3 or equivalent customer-facing support and strong English communication skills.

Muck Rack is hiring a Senior Software Engineer, Fullstack to own and deliver customer-facing search features across frontend and backend. The role emphasizes frontend work with Vue while contributing to Python/Django services and systems such as Elasticsearch, Kafka, Celery, and MySQL. Requires 5+ years of professional software engineering experience, TypeScript experience in large codebases, and willingness to participate in on-call rotations. Remote candidates in Bulgaria, Ireland, and the United Kingdom are listed; up to 10% travel and an annual company offsite are expected. The posting includes an Ireland salary range of €95,000–€110,000 annually.

Kraken seeks an Engineering Manager to grow and lead a team of 8–10 engineers responsible for core trading backend services (matching engine, market data gateways, order entry). The role requires technical engagement in low-latency, high-concurrency, and high-volume transaction systems on Linux, proficiency in Rust and/or C++, familiarity with messaging (Aeron) and multicast market data, and experience with trading systems and order types. The team works across C++, Rust, Go, and Python and is distributed across multiple countries listed in the posting.

Join a senior team of DBAs and SREs to scale and tune distributed MariaDB environments, strengthen HA and disaster-recovery, reduce manual work via automation and IaC (Terraform/GitOps), improve observability and security, and participate in on-call rotations. Positions listed for multiple European countries and several other locations.

Kraken is hiring a Network Engineer for Core Infrastructure to design and build data centers and fabrics, implement zero-trust network security, operate and respond to infrastructure requests, and automate tooling and IaC. The role requires 2+ years of network engineering experience, hands-on data-center work, familiarity with firewalls and routing/switching, and exposure to cloud networking and automation tools.

Percona seeks a GTM Coordinator to help coordinate launches, campaigns, content, community and event logistics for its Cloud Native product line (Kubernetes Operators for PostgreSQL, MySQL, MongoDB). The role requires 1+ years relevant experience, strong organizational skills, basic data/reporting capability, and fluency in English. Locations listed include several cities and Bulgaria; Percona is a remote-only, globally dispersed company.

Owner of automated, multi-stage protection pipelines and CI at scale: progressive release automation, quality gates, observability, and LLM orchestration over petabyte-scale threat data and telemetry from millions of sites. Requires 5+ years backend/platform/infrastructure experience, deep expertise in at least one of Python/Go/Rust, and hands-on experience with CI/CD, workflow orchestration, observability (Prometheus/Grafana), object storage and large analytical stores (ClickHouse). Fully remote with flexible hours. Locations listed include Spain (Madrid), Portugal (Lisbon), Serbia (Belgrade), Bulgaria (Sofia) and Montenegro (Podgorica).

Kraken is hiring a Senior Product Engineer (Growth) to build and maintain full-stack web and mobile systems that drive activation, retention, and monetization. The role involves implementing reusable services and components for onboarding, KYC, marketing campaigns, and experimentation; working with distributed systems at scale; and collaborating with product, design, and data teams. Requires 5+ years of software engineering experience and proficiency with TypeScript, Rust, Go, Python, or Ruby and React/React Native; familiarity with Docker, Kubernetes, Terraform, MySQL/MariaDB, Redis, and CI/CD tooling is expected.

Owner of a greenfield reliability charter inside an existing product estate: define SLIs/SLOs for ~70 components, build the collection pipeline and alerting/escalation systems, and establish incident and on-call practices. Requires substantial production SRE experience, strong Python, familiarity with Go/Rust, and deep practical experience with Prometheus/Grafana/columnar stores and telemetry at scale.

Muck Rack is hiring a Media Monitoring Specialist to validate print, digital, and broadcast coverage; produce concise article- and story-level summaries; build and maintain search queries/keyword strategies; extract and analyze data with Excel and Power BI; and deliver client-facing reports and insights. The role is remote (Bulgaria) and involves cross-functional collaboration, meeting quality/performance goals, and up to 10% travel.

DuckDuckGo is hiring a Staff Data Scientist to work on search ranking, lexical-matching and document-authority signals, search evaluations, and LLM-based feature generation. The role requires 10+ years of data science experience (including 2+ years at Staff/Principal/Director level), hands-on production ML deployment, strong Python and advanced SQL skills, and experience with NLP and search infrastructure. The position is remote (roles listed for multiple countries), expects roughly 40 hours/week, requires attendance at two annual in-person company events, and offers $222,033 USD annually plus stock options. A background check is required.

DuckDuckGo is hiring a Senior Product Design Engineer to work across native apps, search, and related products. The role requires 7+ years in product design (2+ at senior level), strong code prototyping skills, design-system experience (token layering, design-to-code parity), accessibility and research proficiency, and the ability to participate in prioritization and strategy. Compensation is listed as $178,500 USD annually plus stock options. Candidates should expect ~40 hours/week and travel ~2 times/year for company meetups.

Join Kraken's Consumer team to design and implement robust, high-performance Rust services and libraries that power trading and payments experiences. Responsibilities include building reusable, testable code, collaborating on distributed systems architecture (RPC, Kafka, event-driven systems), debugging across OS/network/application stacks, owning systems end-to-end, and mentoring other engineers. The role lists openings across multiple countries (see location).

Safeguard Global is hiring an Employer Branding & Employee Engagement Specialist to create storytelling and content for internal and external channels, support recruitment marketing, run engagement and recognition programmes, and measure campaign impact. The role is remote-first and hiring is indicated in Bulgaria (base salary from €25,000) and South Africa.

LivePerson seeks a SecOps Engineer (remote, Bulgaria) to support SecOps tool alerts, triage and maintenance; test for vulnerabilities; investigate security incidents; monitor security-related tickets and email; troubleshoot on-prem and cloud SecOps infrastructure; and document SOPs and playbooks. Required: minimum 3 years in IT/system teams at a SaaS/cloud company, hands-on multi-cloud experience (GCP), Elastic, Okta, IDM, AD, JAMF, Windows/Linux/macOS, incident response and log analysis, Python/Go as advantages, and CompTIA CySA+. Role includes on-call rotation and ability to support US hours.

Responsible for designing, building, and maintaining backend services, APIs, and event-driven integrations between Muck Rack and commercial systems (Salesforce Revenue Cloud, Stripe, RightRev). Requires 5+ years' software engineering experience, strong Python/Django skills, experience with relational databases (MySQL), event-driven/asynchronous processing (Kafka, Celery or similar), debugging distributed systems, and working in SaaS environments. Role is remote for Ireland and Bulgaria and involves up to 10% travel.

Sardine is hiring an Enterprise Sales Engineer to support Account Executives by delivering customized product demonstrations, completing RFPs, conducting security reviews, and creating solution designs for fraud and compliance use cases. The role is remote (EU preferred: UK, Germany, Bulgaria) and requires 7+ years in Sales/Systems/Solutions Engineering within Risk/Fraud/Compliance. Technical skills include APIs and JSON plus proficiency in one or more languages (Python, JavaScript, Ruby, Go, Java).

Lead the Fraud Analytics function within Ongoing Monitoring, building and running analytics processes, rule building, back-testing and optimisation to reduce fraud exposure. Collaborate across stakeholders (product, engineering, data science, operations) to translate compliance and business requirements into solutions. Requires 4+ years in analytics, strong SQL, Excel and visualisation skills; Python preferred, and experience with financial crime/fraud compliance.