Tech Lead - Sr. Software Engineer

In this role, you'll mentor the project team, share knowledge, and collaborate with the Solution Architect to determine project architecture. You'll lead in developing projects, promoting best programming practices, and have influence over developers. Lastly, you'll provide application support, develop and document applications, and maintain application documentation and configuration., As a Tech Lead Software Engineer, you are a hands-on technical leader with end-to-end ownership of service-level architecture, delivery outcomes, and production reliability. You set technical direction, make and communicate clear architectural tradeoffs, and lead through influence-aligning engineers, product, and partners around durable, scalable solutions.

You design, build, and operate backend services as the organization modernizes from on-prem to AWS, applying cloud-native and event-driven patterns to improve reliability, security, and developer velocity. You champion build-it / run-it ownership, ensuring services meet clear standards for quality, observability, and operational excellence.

You accelerate delivery through AI- and agentic-first engineering practices, establishing safe, repeatable workflows that improve throughput and quality while maintaining strong validation, security, and governance. You raise the engineering bar by mentoring others, setting clear guardrails, and continuously improving the systems and practices your teams rely on., * Set and communicate technical direction, aligning engineers around clear priorities, architectural intent, and delivery outcomes

• Lead through influence, partnering with product, platform, and dependent teams to drive alignment without relying on positional authority
• Serve as the primary technical escalation point, resolving complex challenges while balancing speed, quality, and long-term sustainability
• Raise the engineering bar, mentoring through design reviews, code reviews, and shared standards that elevate team capability
• Model ownership and accountability, leading by example with a bias for action and end-to-end responsibility

Modern Software Development

• Own service-level architecture and technical decisions, defining APIs, data models, messaging patterns, resiliency, and error handling that scale and endure
• Lead system modernization, decomposing monoliths into well-bounded, cloud-native services using domain-driven and evolutionary architecture principles
• Design and evolve event-driven systems, establishing reliable pub/sub patterns, schema and versioning strategies, and failure handling
• Set data architecture direction, modeling access patterns across relational and NoSQL stores for correctness, performance, and cost efficiency
• Establish architectural guardrails, using patterns, reference implementations, and lightweight reviews to enable autonomy with alignment
• Make and revisit pragmatic tradeoffs, documenting decisions and adapting as requirements, scale, or constraints change

Agentic AI-First Engineering

• Lead adoption of AI- and agentic-first development practices, integrating AI into coding, testing, reviews, documentation, and CI/CD
• Design governed, repeatable agentic workflows for multi-step engineering tasks, with clear human-in-the-loop controls
• Set standards for validating AI outputs, ensuring security, correctness, maintainability, and standards alignment
• Measure and optimize impact, improving throughput, quality, and developer experience based on outcomes-not novelty
• Enable responsible experimentation, empowering teams to innovate within defined guardrails and shared learnings

Quality, Delivery & Operations

• Own production quality and reliability, ensuring services meet clear expectations for availability, performance, and resiliency
• Define and enforce quality mechanisms, establishing testing strategies, CI quality gates, and review standards that make correctness the default
• Operate what you build, taking end-to-end responsibility from development through deployment, on-call readiness, and incident remediation
• Lead operational excellence, defining observability standards, SLIs/SLOs, and actionable alerts to proactively manage system health
• Ensure predictable delivery, improving flow through automation, CI/CD maturity, and reduced operational friction
• Embed security and compliance by design, addressing regulatory and risk requirements without slowing delivery
• Drive continuous improvement, using incidents, metrics, and retrospectives to strengthen systems, processes, and practices

This level of knowledge is normally acquired through the completion of a bachelor's degree in a technology field and/or 8+ years of related experience. Technology certifications are preferred. It is also preferred that the candidate have Banking and Financial Service experience., * Demonstrated technical leadership as a Tech Lead or senior IC-owning service-level architecture, influencing decisions, and serving as a technical escalation point

• Strong backend engineering experience designing and operating secure, scalable services (Java or JVM-based environments preferred)
• Production experience building cloud-based systems, including hands-on experience with AWS (compute, messaging, storage) and cloud-native patterns
• Experience designing event-driven architectures, including publish/subscribe patterns, message durability, idempotency, retries, and failure handling
• Build-it / run-it ownership mindset, with experience supporting services in production, participating in on-call, and driving incident remediation
• Strong quality discipline, including test strategy (unit, integration, contract), CI/CD quality gates, and rigorous code review practices
• Proven ability to collaborate across teams, working effectively with product, platform, security, and dependent engineering groups
• Excellent technical communication skills, able to clearly document and explain architectural decisions and tradeoffs

Nice-to-Have

• Experience modernizing legacy or on-prem systems, including decomposition strategies and evolutionary migration to AWS
• Practical application of domain-driven design concepts, such as bounded contexts, aggregates, and hexagonal architectures
• Experience with AI-assisted or agentic development tools, and familiarity with defining guardrails and validation practices
• Experience with containerization, orchestration, or serverless platforms, such as Docker, Kubernetes/EKS, ECS, or Lambda
• Infrastructure-as-Code experience, using tools like Terraform or CDK
• Experience with observability platforms (e.g., New Relic, Datadog, Prometheus) and SLO-driven reliability practices
• Experience with NoSQL data stores, such as MongoDB or Redis, and performance-aware data modeling
• Familiarity with API gateways and integration patterns, such as Kong or Apigee
• Experience operating in regulated environments, with awareness of PCI, SOX, or similar requirements

Our mission is to empower our company, teammates, and customers through resilient, customer-centric technology. We leverage our technical expertise and deep business understanding to deliver impactful solutions.

Mindset

Ownership, customer obsession, growth mindset, think big - start small, bias for action, and relentless pursuit of engineering excellence.

Why Join Us

Impact: Build platforms used across the business; modernize critical systems, development agentic-first solutions. Growth: Leadership development, career advancement, and cutting-edge tech adoption. Culture: Inclusive, collaborative, and innovation-driven. Career Paths: Multiple advancement opportunities available., Investing in our talent and building a great workplace is a top priority for us.

• Empowered employees
• Award-winning culture
• Community commitment

BOK Financial Corporation Group adheres to state specific pay transparency requirements. In order to be considered for a position with BOK Financial Corporation Group, you must complete the entire application process, which includes answering all prescreening questions and providing your eSignature on or before the application deadline.

Base salary range explanation:

The base salary range represents an average range for this position. Actual offers to be determined based on the candidate's qualifications, skills, experience and education. See job details for salary range and bonus type.

BOK Financial Corporation Group includes BOKF, NA; BOK Financial Securities, Inc. and BOK Financial Private Wealth, Inc. BOKF, NA operates TransFund and Cavanal Hill Investment Management, Inc. BOKF, NA operates banking divisions: Bank of Albuquerque; Bank of Oklahoma; Bank of Texas and BOK Financial®., For more than a century, BOK Financial Corporation has helped fuel the success of clients and communities. Since our humble beginnings in Tulsa, Oklahoma, we've grown into a diversified financial services company that serves consumers, small businesses and international corporations-and everything in between. Facts: * Operations focused in an eight-state footprint * 5,000 team members * $53.2 billion in assets* * $129.3 billion in assets under management and administration* * $9.3 million donated to local nonprofits in 2025 * 56,000 volunteer hours by our employees in 2025