13 open listings
Roles posted by organizations here, alongside roles we found on employers’ own careers sites. Crawled roles say so on the card and send you to the employer to apply. Only show organizations on Career App
Software Engineering Advisor- Hybrid
Cigna
Full-time · 9 locations
This role advises on software engineering quality and technical standards across data and analytics platforms, working with architects and development teams to guide implementation and resolve complex technical issues. It suits experienced Java developers who want a more strategic position focusing on code quality, deployment planning, and cross-team collaboration.
Listed on Cigna’s careers site · Apply there ↗
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Principal Software Engineer
Mastercard
Full-time · 5 locations · $170,000 – $281,000
This Principal Software Engineer role leads the architectural vision for Mastercard's SME partnerships platform, designing cloud-native systems that handle global transaction volumes at scale. The position suits experienced backend engineers with deep financial services expertise who want to mentor teams and shape platform strategy across a worldwide organization.
Listed on Mastercard’s careers site · Apply there ↗
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Real-Time Software Engineer, News Engineering
LSEG
Saint Louis, MO
A mid-level software engineering role focused on building and maintaining real-time news distribution systems using C++ and cloud technologies. Suited for engineers comfortable with low-level systems programming who want to work on high-performance infrastructure delivering news globally.
Listed on LSEG’s careers site · Apply there ↗
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Software Engineer
Boeing
Full-time · 4 locations · $105,000 – $128,140
This role involves building weapon planning software for the Department of Defense's next-generation mission system, working within a scrum team to develop microservices-based applications using JavaScript, React, and C#. It suits mid-to-senior engineers with defense or aerospace experience who are comfortable with classified work and can obtain a security clearance.
Listed on Boeing’s careers site · Apply there ↗
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Software Engineering Senior Advisor- Hybrid
Cigna
Full-time · 7 locations · $130,200 – $217,000
This role leads a platform team building REST-based microservices and data pipelines in a healthcare technology environment, using Java, Spring Boot, and AWS cloud infrastructure. It suits experienced backend engineers who want to mentor others and shape architectural decisions for a large healthcare organization.
Listed on Cigna’s careers site · Apply there ↗
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Senior AI Engineer
Mastercard
Full-time · O Fallon, MO · $115,000 – $184,000
This role leads the design and deployment of large language model systems, agents, and retrieval-augmented generation pipelines at enterprise scale. It suits experienced ML engineers who have built production generative AI applications and want to architect next-generation AI systems within a global fintech organization.
Listed on Mastercard’s careers site · Apply there ↗
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C++ Software Engineer
LSEG
2 locations
This role builds market data infrastructure and financial systems at a major exchange, working with C++ to develop high-performance trading and market logic code. It suits engineers with 2+ years of C++ experience who want to work on low-latency financial systems alongside collaborative teams.
Listed on LSEG’s careers site · Apply there ↗
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Associate Software Engineer
Boeing
Full-time · 7 locations · $82,000 – $89,000
This role develops software for F-15 Mission Planning systems at Tapestry Solutions (a Boeing company), working with C#, JavaScript, and SQL in an Agile environment. It suits junior developers with some experience in object-oriented programming and version control who want to contribute to defense technology.
Listed on Boeing’s careers site · Apply there ↗
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Software Engineer II - Decision Management Program
Mastercard
Full-time · O Fallon, MO · $92,000 – $147,000
This role builds and maintains backend services for Mastercard's enterprise notification platform, handling high-volume transaction events across fraud and security products. It suits mid-level engineers comfortable with Java microservices, event-driven architectures, and production support responsibilities in a large distributed-systems environment.
Listed on Mastercard’s careers site · Apply there ↗
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Senior Software Engineer - Real Time Product Engineering
LSEG
Saint Louis, MO
This role involves building and maintaining internal development tools for a major financial infrastructure company, working across multiple technology stacks to support other engineering teams. It suits experienced engineers who enjoy solving infrastructure problems, collaborating across organizational boundaries, and want to deepen their knowledge of financial systems.
Listed on LSEG’s careers site · Apply there ↗
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Senior Software Engineer
Mastercard
Full-time · 24 locations · $115,000 – $184,000
A senior-level individual contributor role focused on designing and building scalable distributed systems while mentoring junior engineers. This position suits experienced Java backend developers who want to take on architectural responsibilities and grow as technical leaders without moving into pure management.
Listed on Mastercard’s careers site · Apply there ↗
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Senior Software Engineer - St. Louis
LSEG
Saint Louis, MO
LSEG Data & Analytics is hiring software engineers to build enterprise financial data and analytics platforms, with opportunities to work on AI-powered solutions serving global markets. This role suits engineers with solid experience in major languages who are curious about emerging technologies and want to tackle complex problems at scale in financial infrastructure.
Listed on LSEG’s careers site · Apply there ↗
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Senior .Net Engineer - Real Time Product Engineering
LSEG
Saint Louis, MO
A senior-level software engineer role focused on building internal development tools and utilities for a major financial markets infrastructure company. The position suits experienced engineers who enjoy working across multiple technology stacks, collaborating with internal teams, and helping advance DevOps practices in a complex, regulated environment.
Listed on LSEG’s careers site · Apply there ↗