Senior Back-End Web Developer

Bln24 — United States · Posted ~3 hours ago

Senior Full-time Onsite

Skills

Scala Akka Toolkit CQRS Event-driven architecture REST APIs Database development Microservices Kubernetes Backend development Akka

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Summary ✨ AI‑Generated

A senior backend engineering role focused on designing and optimizing services behind public-facing regulatory applications. You will work with Scala and Akka, CQRS and event-driven architecture, high-performance APIs and databases, and containerized microservices running on Kubernetes. The role offers technically demanding work on scalable, mission-critical systems.

Highlights

Work on public-facing regulatory applications with advanced backend architecture, high-performance APIs, event-driven systems, and containerized microservices orchestrated at scale.

Description

Job Title: Senior Back End Web Developer Location: McLean, VA Company: BLN24 About Us: We find strength in teamwork-a better you is a better us BLN24 is an award-winning Management Consulting Firm that supports the U.S. Federal Government in successfully achieving their mission and goals. Our service and solutions delivery start with understanding each client’s end-state, and then seamlessly integrating within each Agency’s organization to improve and enhance strategic and technical operations and deployments. Position Overview: BLN24 is seeking a Senior Back End Web Developer to support CFPB's RegTech BPA program by designing, building, and optimizing the back-end services behind public-facing regulatory applications. This role requires deep experience with Scala and the Akka Toolkit, CQRS and event-driven architecture, and high-performance API and database development within containerized microservices orchestrated by Kubernetes. Key Responsibilities:Design, develop, and maintain back-end services using Scala and the Akka Toolkit, applying functional programming, reactive programming, and actor-based concurrencyBuild and evolve components of a CQRS, event-driven architectureDevelop and optimize database queries across relational and non-relational stores, including PostgreSQL and Cassandra / AWS KeyspacesImplement data access layers using Slick or comparable ORM librariesBuild and optimize APIs that handle complex JSON payloadsWrite unit and integration tests that validate end-to-end API responsesDevelop containerized microservices for Docker and deploy them on KubernetesManage source code, reviews, and planning in GitHub, collaborating with architects, front-end developers, and product owners in an Agile teamRequired Qualifications:8+ years of professional back-end development experienceExperience in functional programming using Scala, including the Akka Toolkit, the reactive programming model, and actor-based concurrencyExperience working on a CQRS, event-driven architectureDemonstrated experience developing and optimizing database queries in relational (SQL) and non-relational (NoSQL) structures, such as PostgreSQL and Cassandra / AWS KeyspacesExpertise using Slick or another Object Relational Mapping (ORM) libraryExpertise building and optimizing APIs with complex JSON payloadsExperience creating unit tests and integration tests that validate end-to-end API responsesExperience developing containerized microservices, with specific skills developing for Docker containers using Kubernetes orchestrationExperience working with GitHub for source code management and planningBachelor's degree in Computer Science or related field; Master's degree preferred Preferred Qualifications:Experience using asynchronous Python methodologies or similarExperience with a front-end framework such as VueJS, especially ReactJSDemonstrated experience working on open-source projects, including delivering public-facing solutionsPrior engagement at CFPB or other federal financial regulators (e.g., FDIC, OCC, SEC, FRB, NCUA)Experience delivering solutions in a federal FISMA Moderate or comparable security-compliance environment What BLN24 brings to the Game: BLN24 benefits are game changing. We like our team to play hard and that means they need to be taken care of — physically, financially, and emotionally. We make sure to keep them in the game by giving them access to generous medical, dental, and vision plans.You can join one of the fastest growing companies headquartered in the Washington DC Metro Area. We give you the opportunity to work in different sectors, so you have the chance at variety while maintaining stability.Flexibility at BLN24 allows each individual the opportunity to balance quality work and their personal lives. Depending on projects, we allow remote working opportunities so you can always be in the game no matter where you call home.BLN24 is an Equal Opportunity Employer. We believe people are our strength and understand diverse talents are key to our success. We are an equal opportunity employer and place a high value on diversity and inclusion at our company. We do not discriminate on the basis of any protected attribute, including race, religion, color, national origin, gender, sexual orientation, gender identity, gender expression, age, marital or veteran status, pregnancy or disability, or any other basis protected under applicable law. In accordance with applicable law, we make reasonable accommodations for applicants' and employees' religious practices and beliefs, as well as any mental health or physical disability needs.