Senior Software Architect & Tech Lead

LSEG; Gdynia; On-site; PLN 265,000 - 419,000; Full time

Benefits offered by this job

Annual bonus plan

Healthcare

Retirement planning

Paid volunteering days

Job summary

London Stock Exchange Group (LSEG) in Poland is seeking a Lead Software Engineer to define and drive the technical direction of a focused product area, delivering scalable cloud-based systems with strong security and performance.

You will mentor engineers, lead reviews, and shape architecture across services, databases, and data pipelines using Azure, AKS, and modern DevOps, with a base salary and bonus eligibility.

Qualifications

• Proven experience designing distributed systems at scale.
• Strong programming with OO and functional styles.
• Hands-on with SQL and Spark SQL; relational DBs.

Responsibilities

• Own delivery of key platform capabilities and technical direction.
• Lead code reviews, design walkthroughs, and architecture discussions.
• Improve reuse, reduce duplication, and raise engineering quality.
• Collaborate on API design and service-to-service communication.
• Mentor engineers and promote best practices across teams.

Skills

Distributed systems

OO/FP patterns

Relational databases

SQL/Spark SQL

System design

Data Lake/Change Data Feed

AKS/Microsoft Fabric

CI/CD

API and service patterns

Azure/Cloud

Containers/IaC

Tools

Azure

Containers

IaC

Microsoft Fabric

Job description

London Stock Exchange Group (LSEG) in Poland is seeking a Lead Software Engineer to define and drive the technical direction of a focused product area, delivering scalable cloud-based systems with strong security and performance.

You will mentor engineers, lead reviews, and shape architecture across services, databases, and data pipelines using Azure, AKS, and modern DevOps, with a base salary and bonus eligibility.