Senior Software Engineer
Certara
Senior Software Engineer
Certara
Biosimulation and model-informed drug development platform
Certara accelerates medicines using proprietary biosimulation software, technology and services to transform traditional drug discovery and development. Its clients include more than 2,000 biopharmaceutical companies, academic institutions and regulatory agencies across 62 countries. Certara touches more than 80% of all drugs that are approved by the FDA and is constantly working to efficiently and effectively guide its customers through drug approval.
As a Senior Software Engineer on Pulse, you will design, build, and maintain the shared integration services that enable secure, event-based communication and data exchange across Certara applications. Pulse is not an end-user product; it is a foundational platform capability that underpins cross-product workflows, file exchange, and system-to-system integration. Your expertise commitment to delivering high-quality, secure, and compliant solutions will guide your day to day. You will collaborate with product, architecture, security, and engineering teams in an agile environment to deliver a scalable, well-governed platform that other Certara teams can adopt with confidence.
Platform Engineering
Design, develop, and maintain Pulse services, APIs, and event contracts used by multiple Certara applications
Be responsible for one or more significant components of the Pulse platform, including its reliability, performance, and operability in a SaaS environment
Build secure, scalable patterns for event-based messaging and file/data exchange, and avoid ad hoc point-to-point integrations
Security & Compliance
Implement identity-based authentication and authorization (for example RBAC, ABAC, ReBAC, IAM) across Pulse services
Translate security, data governance, and regulatory expectations into well-tested engineering solutions
Quality & Delivery
Author and review unit, integration, and contract tests; participate in code and design reviews
Break complex deliverables into smaller parts and deliver them incrementally to enable collaboration
Consistently produce deliverables that do not require revision
Collaboration & Leadership
Collaborate with the Technical Product Manager on requirements elicitation, backlog refinement, and technical trade-offs
Partner with consuming application teams to onboard them to Pulse and support adoption
Oversee the work of engineers at lower levels and provide significant feedback to team efforts
Contribute to process improvements, architecture documentation, and team process documentation
Identify and anticipate risks related to their own work and communicate them proactively to product leadership
Show initiative beyond checking tasks off a list; identify and suggest future work for themselves and the team
Actively use AI coding assistants and agentic tools to accelerate design, development, testing, and documentation, while applying sound engineering judgment and review to AI-generated code
Build relationships to solve problems directly and limit management escalations
Required Qualifications
6+ years of experience in similar software engineering roles
Experience building and operating APIs and event-driven or messaging-based systems
Solid understanding of authentication and authorization concepts and secure coding practices
Experience working in a highly collaborative agile software organization
Willingness to embrace AI-assisted development and to continuously learn and adopt new AI tools and workflows as they evolve
Ability to operate effectively in ambiguous environments and to own significant modules end to end
Preferred Qualifications
Experience with shared services, integration platforms, messaging systems, or data pipelines
Knowledge of enterprise identity models such as RBAC, ABAC, ReBAC, and AWS IAM
Experience with cloud-hosted (AWS) SaaS architectures
Experience in regulated or compliance-aware life sciences environments
Certara bases all employment-related decision on merit, taking into consideration qualifications, skills, achievement, and performance. We treat all applicants and employees without regard to personal characteristics such as race, color, ethnicity, religion, sex, sexual orientation, age, nationality, marital status, pregnancy, physical or mental condition, genetic information, military service, or other characteristic protected by law.
Certara provides biosimulation and model-informed drug development tools and services to biopharma, CROs, and researchers. Its platforms include Phoenix WinNonlin for PK/PD and non-compartmental analysis, Simcyp for PBPK modeling, and D360 for scientific informatics, plus Certara.AI for AI-assisted medical writing and regulatory documentation, enabling users to build and run mathematical models that predict drug behavior across development. It differentiates itself with an end-to-end ecosystem, deep regulatory experience, and wide adoption among leading companies and agencies. Its goal is to speed up decision-making, reduce uncertainty, and help deliver safe, effective medicines to patients faster.
Explore more opportunities at Certara