Senior Engineer - Software Development

For more than 40 years, Accelya has been the industry’s partner for change, simplifying airline financial and commercial processes and empowering the air transport community to take better control of the future. Whether partnering with IATA on industry-wide initiatives or enabling digital transformation to simplify airline processes, Accelya drives the airline industry forward and proudly puts control back in the hands of airlines so they can move further, faster.

As an Engineer II - Software Development at Accelya , you will independently deliver software features and service solutions, building scalable, reliable, and well-tested systems that support Accelya's 200+ airline customers worldwide .

Duties & Responsibilities

• •Design, develop, and deliver features supporting airline ticketing workflows, including issuance, voids, refunds, exchanges, and ancillary documents.
• •Build and enhance cloud-native services and data pipelines on AWS for transaction processing and industry settlement reporting.
• •Contribute to the modernization of legacy systems by transforming them into cloud-native architectures while ensuring accuracy, reliability, and feature parity through rigorous testing.
• •Troubleshoot complex production issues end-to-end and lead root cause analysis with clear, evidence-based findings.
• •Leverage AI-assisted development tools for code generation, investigation, solution design, code reviews, and test creation, while rigorously validating outputs.

Required Experience & Skills

• •3+ years (Mid-level) or 6+ years (Senior-level) of professional software engineering experience.
• •Hands-on experience building cloud-native solutions on AWS, including services such as Lambda, Step Functions, SQS/SNS, S3, DynamoDB, CloudWatch, and serverless/event-driven architectures.
• •Practical knowledge of AI and LLM-based development tools, with demonstrated experience using AI coding assistants effectively in software development.
• •Strong expertise in C#/.NET for developing and maintaining production-grade services and APIs.
• •Solid SQL skills and experience working with relational databases.
• •Experience with automated testing (unit, integration, and regression testing) and CI/CD pipelines.
• •Understanding of secure coding practices and handling sensitive data, including payment card and personal information.
• •Strong written and verbal communication skills.
• •Willingness to work US shift hours.

Preferred Experience & Skills

• •Working knowledge of C++ and/or Node.js/TypeScript .
• •Experience in the airline, travel, payments, or financial transaction domains.
• •Familiarity with airline industry standards and settlement processes, including IATA BSP , ARC , ATPCO , and IATA NDC .
• •Experience with XML/XSD-based integrations and SOAP or REST APIs.
• •Experience modernizing legacy applications or migrating workloads to the cloud.
• •Familiarity with GitLab CI/CD, Jira, and Confluence.

What We Offer

• •Opportunity to work on business-critical systems that are central to global airline operations.
• •Exposure to a genuine cloud modernization journey with meaningful architectural ownership.
• •A collaborative, AI-first engineering culture that embraces modern tools and best practices.
• •Career growth through mentorship, deep industry expertise, and clearly defined progression opportunities.

About Accelya

Accelya is a leading global software provider serving the airline industry, powering more than 200 airlines through its open and modular software platform. Backed by Vista Equity Partners , Accelya brings together 2,000+ employees across 10 global offices . The company is a proud AWS partner and a recognized pioneer in NDC expertise.

Learn more at: www.accelya.com .

What does the future of the air transport industry look like to you? Whether you’re an industry veteran or someone with experience from other industries, we want to make your ambitions a reality!