Performance Engineer II

Company Description
Software Mind develops solutions that make an impact for companies around the globe. Tech giants & unicorns, transformative projects, emerging technologies and limitless opportunities – these are a few words that describe an average day for us. Building cross-functional engineering teams that take ownership and crave more means we’re always on the lookout for talented people who bring passion and creativity to every project. Our culture embraces openness, acts with respect, shows grit & guts and combines employment with enjoyment.

Job Description
Project – the aim you'll have
We are the AI Experience Framework team that builds the platform powering ServiceNow's AI-first user interfaces - an SSR runtime (karuna) built on Lit and server-rendered web components, running behind a multi-tier proxy/HTTP2 routing chain with sharded V8 isolate pools, paired with a ServiceNow Glide/Java platform layer (karuna-glide) that supplies metadata, ACLs, and service artifacts. This role owns production reliability for that stack end to end: Kubernetes deployment and operations, observability, and hands-on troubleshooting of both the Node.js and JVM sides of the system - not generalist infrastructure work.

Position – How You’ll Contribute

• Own Kubernetes deployment and operational health for Framework services, including scaling, rollout/rollback strategy, and resource tuning
• Build and maintain production observability - Grafana dashboards and Prometheus alerting rules - across the SSR runtime and the Glide platform layer
• Diagnose and resolve Node.js production incidents: event-loop stalls, heap growth, V8 isolate exhaustion, and isolate-pool scheduling issues under concurrent versioned traffic (vN/vN-1)
• Diagnose and resolve JVM production incidents on the Glide/Java side: GC pressure, thread dumps, and platform-service latency
• Own incident response for the team: runbooks, on-call rotation, postmortems, and paging hygiene
• Drive CI/CD and infrastructure-as-code for Kubernetes manifests/Helm and deployment pipelines
• Partner with the framework engineering team to identify reliability gaps before they become incidents - capacity planning, load testing, chaos/failure-injection where useful
• Represent production reliability concerns in architecture reviews for new framework capabilities

Qualifications
Expectations – the experience you need

• Production operations/SRE experience, including hands-on Kubernetes deployment, scaling, and incident response
• Direct operational experience troubleshooting Node.js in production: reading heap snapshots and CPU profiles, diagnosing event-loop blocking, and understanding process/worker isolation models (V8 isolates or equivalent sandboxing)
• Direct operational experience troubleshooting JVM-based services in production: GC log analysis, thread dump analysis, and JVM tuning
• Hands-on experience building and maintaining Prometheus alerting rules and Grafana dashboards from scratch, not just consuming existing ones
• Strong Linux/networking fundamentals: DNS, load balancing, TCP/HTTP semantics (including HTTP/2), and debugging service-to-service networking inside Kubernetes
• Experience with CI/CD and infrastructure-as-code for containerized deployments (Helm, GitOps tooling such as ArgoCD/Flux, or equivalent)
• Track record owning on-call rotations, writing runbooks, and driving postmortems that lead to real reliability improvements
• Experience with Splunk for log aggregation, search, and production troubleshooting.
• Hands-on experience with in-memory caching systems (Valkey/Redis) in production — key design, TTL/eviction tuning, and tenant-scoped cache invalidation
• Experience managing service-to-service mTLS - certificate issuance, rotation, and format conversion (e.g., PKCS/BCFKS↔PEM) - plus JWT-based service authentication
• Very good spoken and written English.

Additional Skills – The Edge You Have

• Familiarity with server-side rendering architectures and the specific failure modes of isomorphic runtimes (markup mismatches, browser-API leakage into server code)
• Experience operating multi-version/canary rollout strategies (two live app versions served concurrently)
• Working knowledge of the ServiceNow Glide platform or a comparable enterprise platform integration layer
• Experience with distributed tracing and request-context correlation across service boundaries
• Familiarity with event-driven autoscaling (e.g., KEDA ScaledObjects driven by PromQL triggers) as a complement to standard HPA-based scaling

Additional Information

Our Offer – Professional Development, Personal Growth

• Flexible employment and remote work
• International projects with leading global clients
• International business trips
• Non-corporate atmosphere
• Language classes
• Internal & external training
• Private healthcare and insurance
• Multisport card
• Well-being initiatives

Position at: Software Mind
#WORLD

Company Description
Software Mind develops solutions that make an impact for companies around the globe. Tech giants & unicorns, transformative projects, emerging technologies and limitless opportunities – these are a few words that describe an average day for us. Building cross-functional engineering teams that take ownership and crave more means we’re always on the lookout for talented people who bring passion and creativity to every project. Our culture embraces openness, acts with respect, shows grit & guts and combines employment with enjoyment.

Job Description
Project – the aim you’ll have
The role will be part of a delivery stream-aligned engineering team, with responsibility for providing and managing the technical platform that enables Application Development teams to deliver and run business systems efficiently.

The focus of the role is to ensure the technical estate and skill set of the relevant delivery stream remain aligned with departmental strategy, and that delivery teams work efficiently using best-practice delivery approaches.

Position – How You’ll Contribute
As a DevOps Engineer, you can expect to be involved in the following activities:

• Work with the Principal DevOps Engineer and other groups within the department, such as the Developer Community, Architecture, Central Platform Engineering, and other delivery stream engineering teams, to enforce existing standards and contribute to their evolution.
• Ensure delivery stream teams are making good use of available tooling and platform elements, and aid in upskilling and maintaining their level of knowledge in relevant platform tools and modern development practices with a focus on productivity and efficiency.
• Deliver technical life-cycling changes and ensure our development platform remains supported, capable, and evergreen.
• Help the delivery teams to design and deliver systems that meet required Non-Functional Requirements for each tech stack and project, in particular, this should emphasise reliability, robustness, and maintainability.
• Assist delivery teams in diagnosing and correcting platform and tooling issues, collaborating with the Central Platforms team as necessary.
• Deliver software infrastructure and tooling to delivery projects, defining and evolving best practices as necessary and ensure these learnings are shared with other engineering teams.

Qualifications
Expectations – the experience you need

• CI/CD
• Kubernetes
• Azure DevOps
• Pipelines
• Application Security
• Cloud Services/capabilities
• General development experience with in-house systems

Additional Skills – The Edge You Have

• Adaptability
• Digital effectiveness
• Enabling others
• Systems thinking
• Team Working

Additional Information

Our offer – professional development, personal growth

• Flexible employment and remote work
• International projects with leading global clients
• International business trips
• Non-corporate atmosphere
• Language classes
• Internal & external training
• Private healthcare and insurance
• Multisport card
• Well-being initiatives

#WORLD

Company Description
To create revolutionary, story-driven RPGs which go straight to the hearts of gamers — this is our mission. Want to dive deeper into our company’s culture? Explore our social media and check out our YouTube channel and Beyond the Game Blog where we share behind-the-scenes insights and stories direct from our team members!

Job Description
Drive the development of IT infrastructure by designing, implementing, and optimizing automation solutions for operating systems and hybrid cloud environments. This role is responsible for creating tools and automations that resolve root causes and enhance the daily work of the Systems Engineering team. The overall goal is to increase operational efficiency, enable focus on strategic projects, and introduce modern, self-service IT solutions across the organization.

Responsibilities:

• Design, test, implement, and maintain advanced scripts (e.g., PowerShell, Python, Bash) and applications that automate administrative and operational tasks in the IT infrastructure.
• Analyze high-potential automation areas and lead projects that improves team's velocity, including optimization of existing tools.
• Develop, integrate, and manage tools for Infrastructure as Code (IaC), proactive monitoring, and support CI/CD practices across systems.
• Collaborate with the Systems Engineering team and share knowledge on automation strategies and tools.
• Create and maintain technical documentation for implemented automation tools and processes.
• Work closely with the ITSECOPS department and other internal teams to gather requirements and successfully implement automation solutions.
• Continuously improve processes and tools by exploring new technologies and implementing innovative, industry best practices in IT automation.

Qualifications

• At least 3 years of experience in IT process automation, programming, or advanced systems administration.
• Advanced knowledge of at least one scripting language (e.g., Python, PowerShell).
• Proven experience designing, building, and deploying automation tools in production environments.
• Good understanding of software engineering principles, version control systems (e.g., Git, Perforce), and practical experience with CI/CD tools and concepts.
• Experience in administering operating systems (Windows Server, Linux) and cloud platforms (e.g., AWS, GCP).
• Good understanding of Ansible or other configuration management tools.
• Experience with Terraform or similar tools.
• Knowledge of monitoring tools such as Zabbix or Prometheus, and visualization platforms (Grafana).
• Highly developed analytical thinking and the ability to independently diagnose and resolve complex technical challenges.
• Excellent communication and collaboration skills, with an openness to diverse working styles and perspectives.
• Initiative, a proactive approach, results orientation, and high standards for work quality.
• Working proficiency in both Polish and English.

Additional Information

Working mode

• In-office in a hybrid or full-time capacity in Warsaw, Poland.
• Remote work from within Poland is possible for selected candidates.
• Relocation to Poland is required for those residing abroad.

Health & Well-Being

• Private medical healthcare — a selection of medical plans with dental care and unlimited rehabilitation to choose from, which are also accessible for your partner and relatives.
• Life insurance — comprehensive pension and insurance plans to protect you and your loved ones.
• Annual screenings for cancer prevention covered by the company.
• Psychological and psychiatrist care — free mental health support and various well-being initiatives.
• Sports card — gain access to a wide number of sporting and fitness facilities across the city.
• Menstrual leave — employees who menstruate can take one extra day off when experiencing period pain.
• RED Parents Network — support for working parents, including childcare benefits, and family-friendly events.
• RED Summer Camp for Kids — a fun summer program for children aged 5–12, majoritively paid by the company.

Perks & Professional Growth

• A welcome pack filled with goodies — to help you feel right at home once you join the team.
• Trainings, lectures, and courses — workshops and trainings for each employee, knowledge-sharing initiatives, online tutorials, and e-learning classes are all available. There’s always something to learn!
• REDs have access to the cafeteria platform through which they can receive subscription benefits, additional medical packages or vouchers and codes to shops, cinemas, and public transport reimbursement.
• Gifts for newborn rebels and regular chances to nab some cool swag!

Social Activities & Life in the Office

• Dog-friendly office — dog owner? Bring your pooch with you and look after them while working! There’s always a furry friend or two to meet at the studio.
• Social events — we host regular gatherings at the studio where we can all unwind, play games, and just have some fun together.
• Healthy selections — canteens.
• Truly international working environment — a chance to meet and work with a diverse selection of people from all around the world.
• Sustainability is an ongoing commitment for us, and our campus has electric car charging points, green zones, and much more. Read all about it on our Beyond the Game Blog.
• A designated space for your bicycle, as well as bicycle repair equipment and showers available whenever you need them.
• An onsite, well-equipped gym with a climbing wall, daily Gym Assistant support, and yoga and boxing classes.
• No dress-code — we like to keep it casual.

Estimated pay range for this position:
12 900 - 17 700 PLN gross monthly.

Final offers are dependent on job-related factors like experience and qualifications.

Type of contract:
Employment Contract ("Umowa o pracę").

If you've observed any irregularities (i.e. legal or ethical violations) in our recruitment process, please click here to report them anonymously.

We are a leading trading platform that is ambitiously expanding to the four corners of the globe. Our top-rated products have won prestigious industry awards for their cutting-edge technology and seamless client experience. We deliver only the best, so we are always in search of the best people to join our ever-growing talented team.

We are seeking a highly skilled and proactive
Senior Database Reliability Engineer
with a strong focus on AWS RDS PostgreSQL, complemented by experience with infrastructure-as-code (IaC) using Terraform and familiarity with RedShift and clichouse .

Current stack: AWS RDS (PostgreSQL,MySQL), AWS RedShift, Clickhouse, Terraform, Ansible.
Responsibilities:

• Own the provisioning, configuration, and ongoing maintenance of PostgreSQL and MySQL instances across AWS RDS and on-premises, ensuring they meet uptime and performance targets
• Design and implement automated failover solutions, load balancing configurations, and DNS management strategies to keep databases accessible under failure conditions
• Write and maintain Terraform code to provision and manage database infrastructure - clusters, instances, storage, parameter groups, security groups - with consistency across environments
• Build and manage Ansible playbooks and roles for database deployments, configuration changes, and patching cycles
• Monitor, alert, and tune - using Prometheus and Grafana - to catch performance degradation before it becomes an incident
• Plan and execute database upgrades and migrations, including cross-version and cross-engine work (PostgreSQL, MySQL, Redshift, ClickHouse, DynamoDB), with minimal impact to production
• Manage backup, restore, and recovery processes; test them regularly so they work when it matters
• Harden database security through access controls, encryption at rest and in transit, and periodic audits
• Maintain and improve underlying Linux systems hosting the databases, including security hardening and performance tuning
• Document configurations, runbooks, and disaster recovery plans; participate in on-call rotation

Requirements:

• 5+ years of proven experience as a Database Administrator or Database Engineer, with hands-on depth in PostgreSQL and MySQL in production environments
• Solid Terraform experience - you've written and maintained IaC
• Working knowledge of Ansible for configuration management and deployment automation
• Strong Linux system administration skills, including performance tuning and troubleshooting
• Experience designing and operating high-availability solutions - failover, replication, load balancing, DNS management
• Familiarity with Prometheus and Grafana or comparable monitoring tools
• Scripting ability in Bash and/or Python for automation and operational tasks
• Understanding of CI/CD pipelines and how database changes fit into a deployment workflow
• Comfort working in a regulated financial services environment, where access control, encryption, and audit trails are non-negotiable

Nice to have:

• Production experience with ClickHouse, Redshift, MongoDB or Microsoft SQL Server
• Familiarity with Docker and Kubernetes in the context of database workloads
• Prior experience with financial services audit requirements or other regulated environments
• AWS certification (Database Specialty, Solutions Architect, or similar)

What you will get in return:

• Competitive Salary: We believe great work deserves great pay! Your skills and talents will be rewarded with a salary that makes you feel valued and motivated
• Work-Life Harmony: Join a company that genuinely cares about you - because your life outside of work matters just as much as your time on the clock.
• Generous Time Off: Need a breather? Our annual leave policy lets you recharge and enjoy life outside of work without a worry
• Employee Referral Program: Love working here? Share the love! Bring your talented friends on board and get rewarded for growing our awesome team
• Comprehensive Health & Pension Benefits: From medical insurance to pension plans, we’ve got your back. Plus, location-specific benefits and perks!
• Workation Wonderland: Live your digital nomad dreams with 30 extra days to work remotely from anywhere in the world (some restrictions apply). Adventure awaits!
• Volunteer Days: Make a difference! Take two additional paid days each year to support causes you care about and give back to the community

Be a key player at the forefront of the digital assets movement, propelling your career to new heights! Join a dynamic and rapidly expanding company that values and rewards talent, initiative, and creativity. Work alongside one of the most brilliant teams in the industry.

Our company has an Internal Reporting Procedure. It is available from the Human Resources Department upon request hr@capital.com. You may report a violation referred to in the Procedure under the terms specified therein.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.