Systems Architect - AI Platform & Generative AI Lab

Brown Brothers Harriman; Kraków; Hybrid; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Culture Celebration Day

Community Service Day

Private medical care

Life Insurance

Employee Assistance Program

Professional trainings

Wellbeing Program

Online Social Fund

Social, sport and integration events

Onboarding Program

Job summary

Brown Brothers Harriman (BBH) is seeking a senior technology leader to shape and scale our AI Platform. You will mentor engineers, drive architecture decisions, and partner with business stakeholders to deliver high-value AI use cases from concept to production.

The role blends hands-on Java, platform engineering, and modern AI technologies across the enterprise. You will influence the BBH AI ecosystem, establish coding standards, and collaborate with security, data, and enterprise teams to

Qualifications

• 8+ years of software engineering experience with leadership exposure.
• Proven track record leading engineering teams and delivering complex initiatives.
• Strong hands-on Java and backend development experience.
• Experience with scalable APIs and distributed systems.
• Cloud-native architectures and platform engineering practices.

Responsibilities

• Drive architectural decisions for AI Platform services and set engineering direction.
• Lead AI Lab Agile teams from experimentation to production-ready solutions.
• Partner with stakeholders to identify and onboard high-value AI use cases.
• Define engineering standards and best practices across the AI Lab.
• Mentor engineers and foster technical excellence and learning.
• Create reusable patterns and platform capabilities to accelerate AI adoption.
• Lead investigations, performance tuning, and production issue resolution.
• Evaluate emerging AI technologies and align with business goals.
• Collaborate with enterprise architecture, security, data, and engineering teams.

Skills

Leadership

Communication

Problem-solving

Mentoring

Team collaboration

Education

Bachelor's degree in Computer Science or related

TOGAF certification

Tools

Java

CI/CD

APIs / Microservices

Job description

At BBH, Partnership is more than a form of ownership—it’s our approach to business and relationships. We know that supporting your professional and personal goals is the best way to help our clients and advance our business. We take that responsibility seriously. With a 200-year legacy and a shared passion for what’s next, this is the right place to build a fulfilling career.

Location: Kraków

Hybrid model: Hybrid model 3 days per week in the office /2 days for a parent of a child up to 4 years old

About the team:

This is an opportunity to help shape the future of AI at BBH. You will work at the intersection of platform engineering, emerging AI technologies, and business transformation. As part of our AI Lab, you will have the opportunity to influence strategic technical decisions, build capabilities that enable teams across the organization, and solve challenging problems related to scalability, governance, adoption, and operationalization of Generative AI.

If you are passionate about building AI platforms, leading talented engineers, and turning cutting-edge AI technology into real business value, we would love to hear from you.

We are seeking a senior technology leader who can contribute to architecture decisions, mentor engineers and partner with business stakeholders to bring high-value AI use cases from concept to production. The candidate will play a key role in establishing our AI Platform as a foundation for innovation, helping the team leverage Generative AI safely, effectively, and at scale.

The ideal candidate combines deep hands-on engineering expertise in Java, platform engineering, and distributed systems with leadership skills and a strong interest in modern AI technologies, including LLMs, AI Agents, Retrieval-Augmented Generation (RAG), and enterprise AI governance.

In our team, you will be responsible for:

• Drive the implementation of architectural decisions for AI Platform services within the team and establish technical direction for the engineering team.
• Drive the evolution of BBH’s AI ecosystem by leading one of the AI Lab Agile teams from experimentation and proof-of-concepts to production-ready, enterprise-grade solutions.
• Partner with business stakeholders to identify, prioritize, and onboard high-value AI use cases.
• Define and promote engineering standards, architecture principles, and best practices across the AI Lab.
• Mentor and coach engineers while fostering a culture of technical excellence, innovation, and continuous learning.
• Establish reusable patterns, shared services, and platform capabilities that accelerate AI adoption across teams.
• Lead technical investigations, root cause analysis, performance tuning, and production issue resolution.
• Evaluate emerging AI technologies and recommend practical approaches aligned with business objectives.
• Collaborate closely with enterprise architecture, security, data, and engineering teams to ensure scalable, secure, and compliant solutions.
• Promote coding best practices, perform architecture and code reviews within the team, and guide technical decision-making.
• Create prototypes and proofs of concept to validate innovative ideas and new AI capabilities.
• Act as a trusted advisor on AI strategy, platform architecture, and technical direction.

What we’re looking for:

• 8+ years of software engineering experience, including experience as a Technical Lead or Engineering Lead.
• Proven experience leading engineering teams and delivering complex technology initiatives.
• Experience driving technical architecture implementation and scalable software solutions.
• Strong hands‑on experience with Java and modern backend development.
• Experience profiling and debugging Java applications, including memory leaks, performance bottlenecks, concurrency issues, and high CPU utilization.
• Experience processing and transforming large datasets efficiently with a focus on performance, scalability, and resource optimization.
• Strong understanding of asynchronous programming in Java, including asyncio, multiprocessing, and concurrent execution patterns.
• Experience designing and developing scalable APIs and distributed systems.
• Solid understanding of cloud‑native architectures and modern platform engineering practices.
• Strong experience with software engineering fundamentals including testing strategies, CI/CD, code reviews, and clean code principles.
• Excellent communication skills with the ability to explain complex technical concepts to both technical and non‑technical audiences.
• Ability to influence technical direction and collaborate effectively across multiple teams and stakeholders.
• Strong analytical and problem‑solving skills with experience managing production‑critical systems.
• Bachelor’s degree in Computer Science, Engineering, or a related discipline.
• TOGAF certification or equivalent architecture experience.
• Experience defining architecture principles, technology standards, and technical roadmaps.

What we offer:

• To encourage cultural awareness and philanthropy, BBHers have 1 Culture Celebration Day and 1 Community Service Day in addition to their paid standard vacation allowance
• Task based working system
• Private medical care
• Life Insurance
• Employee Assistance Program - offering independent and confidential counselling services for you and your family. You can get support for topics including family, marriage and relationships, finances, and legal issues.
• Professional trainings and qualification support
• Wellbeing Program
• Online Social Fund benefit platform
• Social, sport and integration events
• Onboarding Program for new hires

We value diverse experiences.

We value diverse experiences and transferrable skillsets. If your career hasn’t followed a traditional path, includes alternative experiences, or doesn’t meet every qualification or skill listed in the job description, please do go ahead and apply.

About BBH:

Brown Brothers Harriman (BBH) is a premier global financial services firm, known for premium service, specialist expertise, technology solutions and partnership approach to client management. Across Investor Services and Capital Partners, we work with an enviable roster of sophisticated clients who make BBH their first call when they are tackling their hardest challenges. Delivering for our clients and each other energizes us.

We believe that how we do our work is just as important as what we do. We are relentless problem solvers who know our best ideas come from collective debate and development—so we are never possessive about our ideas. Every day we come together as a diverse community of smart and caring people to deliver exceptional service and expert advice—creating success that lasts. No matter where you sit in the organization, everyone is empowered to contribute their ideas. BBHers can pick up the phone and call any colleague, and they are happy to help. Expanding your impact beyond your daily role is part of how we operate as trusted partners to one another.

We believe stability is a competitive advantage, but being stable means having the knowledge, skill, and discipline to evolve, often—pushing the boundaries of innovation. As a private partnership, every investment we make is in the relationships, technologies, products and development we believe are in the long-term interests of our clients and our people. Our long-tenured leaders are experts in their areas and are actively involved in the day‑to‑day business, taking the time to provide guidance and mentoring to build the next generation of BBHers. Because we know, our success begins with yours.

Go to BBH.com to learn more about our rewards and benefits, philanthropy, approach to sustainability or how we support you to thrive personally, physically and financially.