Senior/Lead Backend Engineer (C#, Java) (Capital Markets)

*We are looking for Poland based candidate. This job is Hybrid. Warsaw based candidate is preferred.

Capco, a Wipro company, is a global technology and management consultancy specializing in driving digital transformation in the financial services industry. With a growing client portfolio comprising of over 100 global organizations, Capco operates at the intersection of business and technology by combining innovative thinking with unrivalled industry knowledge to deliver end-to-end data-driven solutions and fast-track digital initiatives for banking and payments, capital markets, wealth and asset management, insurance, and the energy sector. Capco’s cutting-edge ingenuity is brought to life through its Innovation Labs and award-winning Be Yourself At Work culture and diverse talent.

Our approach is tailor-made to fit with each client’s problem with an emphasis on building long-term strategic partnerships that foster collaboration and trust. We have the people, the vision, and the passion.

Capco is committed to providing clients with practical solutions. We offer a globally integrated service with offices in leading financial centers across the Americas, Europe and Asia Pacific.

In Capco, you can code, write, create, and live at your maximum capabilities without getting dull, tired, or foggy.

ABOUT THE PROJECT

We are a leading player in the financial technology space, creating innovative solutions that power the modern capital markets. Our team is passionate about solving complex problems with cutting-edge technology while maintaining a user-focused approach. We are currently seeking a Senior Backend Engineer with a deep understanding of equity derivatives to lead the design and development of our sophisticated Equity (EQ) booking and life cycle management system. If you thrive in fast-paced, high-stakes environments and enjoy building robust, scalable systems, we want you on our team.

ROLE OVERVIEW

As a Senior Backend Engineer, you will take the lead in designing, developing, and optimizing our EQ booking system and its full product life cycle. You will collaborate closely with cross-functional teams including Front Office (FO), Middle Office (MO), Quant, and more, to ensure that the system meets both technical and business requirements. Your expertise in C# will drive the core of the backend development, with the opportunity to leverage Java skills when needed. We’re looking for someone who can not only architect the system but also mentor junior engineers and take ownership of mission-critical applications that directly impact the business.

THINGS YOU WILL DO

• Lead System Design & Development: Design, develop, and optimize the EQ booking and life cycle system for scalability and performance.
• Collaborate with Teams: Work with Front Office, Middle Office, and Quant teams to define requirements and integrate pricing models.
• System Integration & Performance: Ensure smooth integration with other systems via APIs and optimize system performance.
• Mentor & Guide Developers: Provide technical mentorship and set best practices for the team.
• Troubleshoot & Solve Issues: Proactively resolve technical issues and make decisions to maintain system functionality.
• Ownership & Accountability: Take ownership of projects and deliver high-quality solutions on time.

TECH STACK: C#, .NET 6-9, .NET Core, SQL, Message Bus/RabbitMQ, Redis/MongoDB, RESTful APis, microservices

Nice to have: AWS/GCP/Azure, Java, Spring Boot, Kafka, Docker, Kubernetes

Must have:Capital Markets experience/ banking experience/ financial services experience

SKILLS & EXPERIENCES YOU NEED TO GET THE JOB DONE

• Strong expertise, min 6 years of experience in C#, with proven experience building scalable backend systems.
• Familiarity with Java is a nice-to-have, allowing for flexibility in working across different parts of the technology stack.
• Deep understanding of equity derivatives products (Options, Range Accruals, Equity Swaps, Accumulators) and their life cycle, with an ability to translate this knowledge into high-quality software solutions.
• Experience with RESTful APIs, network protocols, and system integration strategies.
• Proficiency in performance tuning and optimization of complex financial systems to meet strict latency and throughput requirements.
• Good command of English (both written and spoken), Polish is nice to have
• Bachelor/Master Degree in Computer Science or related topic

Soft skills needed:

• Action-Oriented: Ability to move quickly and make decisions in fast-moving environments.
• Collaboration: Effective communicator who can partner with stakeholders from various teams and disciplines.
• Customer Focus: Understands user needs and creates solutions that address their problems.
• Courage: Willingness to make tough decisions and challenge the status quo for better outcomes.
• Instills Trust: Builds confidence through transparent communication and reliable decision-making.
• Nimble Learning: Eager to quickly adapt to new tools, technologies, and market changes.
• Decision Quality: Ability to make informed, data-driven decisions that balance business needs with technical constraints.

WHY JOIN CAPCO?

• Employment contract and/or Business to Business - whichever you prefer
• Possibility to work remotely
• Speaking English on daily basis, mainly in contact with foreign stakeholders and peers
• Multiple employee benefits packages (MyBenefit Cafeteria, private medical care, life-insurance)
• Access to 3.000+ Business Courses Platform (Udemy)
• Access to required IT equipment
• Paid Referral Program
• Participation in charity events e.g. Szlachetna Paczka
• Ongoing learning opportunities to help you acquire new skills or deepen existing expertise
• Being part of the core squad focused on the growth of the Polish business unit
• A flat, non-hierarchical structure that will enable you to work with senior partners and directly with clients
• A work culture focused on innovation and creating lasting value for our clients and employees

ONLINE RECRUITMENT PROCESS STEPS*

• Screening call with the Recruiter
• Hackerrank Online Test
• 45 mins chat with Hiring Manager
• Feedback/Offer

Joining Capco means joining an organisation that is committed to an inclusive working environment where you’re encouraged to #BeYourselfAtWork. We celebrate individuality and recognize that diversity and inclusion, in all forms, is critical to success. It’s important to us that we recruit and develop as diverse a range of talent as we can and we believe that everyone brings something different to the table – so we’d love to know what makes you different. Such differences may mean we need to make changes to our process to allow you the best possible platform to succeed, and we are happy to cater to any reasonable adjustments you may require. You will find the section to let us know of these at the bottom of your application form or you can mention it directly to your recruiter at any stage and they will be happy to help.