Yoh, A Day & Zimmermann Company

About the Company

At Yoh, we focus on helping you precisely navigate and fulfill your talent demands. Are you securing the right talent pipelines? Seeking the truth about your talent needs and processes? Start leveraging our deep industry expertise today.

Yoh covers your diverse talent and specialized resource needs in the areas of IT, Fintech, Cloud Computing & Migration, Cybersecurity, Product Engineering, Healthcare, Life Sciences, and Interactive, Media & Entertainment. You can be confident that we have the right subject-matter experts for you. You need it - Yoh has it!

And you’re probably wondering… “What do these guys know?” Quite a bit actually. Check out www.yoh.com to get access to:

#1. The best thought leadership on Yoh’s blog and website. Here you’ll get access to exclusive content that’s upfront, up-to-date, and that has solutions you need now across today's hottest technical focus areas.

#2. Direct access to our Specialty Practice staffing solutions and unlimited support from our highly-knowledgeable, local teams closest to you.

Yoh operates from 75+ locations throughout North America and the United Kingdom. We are headquartered in Philadelphia, PA and are a Day & Zimmermann Company. We have a long lasting partnership with the American Staffing Association.

Listed Jobs

Company Name

Yoh, A Day & Zimmermann Company

Job Title

FULL TIME Java React Fullstack Engineer (70% backend & 30% frontend) - ONSITE in Needham

Job Description

**Job Title** Full Time Java React Fullstack Engineer (70% backend & 30% frontend) **Role Summary** Responsible for designing, developing, and maintaining end‑to‑end software solutions with a majority focus on Java backend services and a secondary focus on React front‑end components. Works closely with business teams and stakeholders to implement new features, optimize performance, and ensure high‑quality delivery on a cloud‑native platform. **Expectations** - Deliver production‑grade code in a 6+ year software engineering environment. - Follow Agile practices, collaborate cross‑functionally, and communicate progress clearly. - Participate in on‑call rotation and production support. - Maintain code quality through automated testing and continuous integration. - Stay current on Java, Spring Boot, React, and cloud best practices. **Key Responsibilities** - Review business requirements, functional specifications, and use‑cases. - Design, prototype, and code new services, APIs, and client interfaces (web/mobile). - Enhance existing systems for new functionality and performance. - Coordinate testing with analysts and vendors; support UAT. - Author technical designs, documentation, and deployment guides. **Required Skills** - Core Java 11+ with Spring/Spring Boot; experience building REST/GraphQL APIs. - React 18+ with TypeScript, state management, and component testing (Jest/RTL/Cypress). - Strong Oracle RDBMS skills (SQL/PL‑SQL, indexing, tuning). - AWS knowledge (ECS/EKS/Lambda, S3, RDS, CloudWatch). - Containerization (Docker, Kubernetes), CI/CD pipelines, and IaC (Terraform/CloudFormation). - Messaging/streaming platforms (SNS/SQS/Kafka). - Automated testing, observability, and production support experience. - Excellent communication and collaborative problem‑solving abilities. **Required Education & Certifications** - Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent professional experience). - Relevant certifications (AWS Certified Solutions Architect, Oracle Database Certified Professional, etc.) are a plus but not mandatory.

Needham, United states

Hybrid

Mid level

17-09-2025

Company Name

Yoh, A Day & Zimmermann Company

Job Title

Security Architect

Job Description

**Job Title:** Security Architect **Role Summary:** Design, implement, and evolve secure enterprise architectures across M&A, cloud, and on‑prem environments. Collaborate with development, operations, business, and enterprise architecture teams to embed security into every phase of solution delivery. Serve as a subject‑matter expert on emerging threats, risk mitigation, and compliance, while driving the maturation of network, infrastructure, and data security capabilities to meet strategic and regulatory goals. **Expectations:** - 10+ years total cybersecurity experience, with 7+ years in infrastructure or systems roles. - Proven ability to design defensible architectures, advise multi‑disciplinary stakeholders, and manage complex multi‑domain risk assessments. - Strong communication, negotiation, and consensus‑building skills under tight deadlines. - Continuous learning mindset and readiness to adapt to evolving threat landscapes. **Key Responsibilities:** - Design and deliver security architecture patterns that align with industry reference models (ISO 27000, NIST, CSA CCM, CIS 20). - Lead the development and enforcement of security standards, controls, and best practices across the organization. - Provide SME support for M&A integration, ensuring secure onboarding of acquired entities. - Partner with Data and Enterprise Architects to secure data using techniques such as masking, tokenization, and encryption. - Analyze emerging threats and vulnerabilities; devise and communicate mitigation strategies to stakeholders. - Document security requirements, communicate architecture decisions, and maintain architecture artifacts. - Conduct risk assessments, recommend actionable solutions, and track implementation progress. **Required Skills:** - Deep knowledge of AWS core services (EC2, S3, IAM, VPC, Security Groups, ACLs, Security Hub, WAF) and other cloud security capabilities. - Experience securing scalable web architectures and distributed systems. - Strong grasp of malware, threat intelligence, attack vectors, and vulnerability management. - Expertise in information security controls, guidelines, and frameworks (ISO 27000, OWASP, CSA CCM, CIS 20, SOX, NIST). - Proficiency in designing network, infrastructure, and data security solutions. - Excellent consulting, negotiation, communication, and stakeholder management. - Ability to handle multiple concurrent projects and remain composed under pressure. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Information Security, or related field (preferred). - CCSP, CISSP, or GIAC certifications are strongly preferred and considered a plus.

Fort mill, United states

Hybrid

Senior

17-09-2025

Company Name

Yoh, A Day & Zimmermann Company

Job Title

Senior Software Engineer

Job Description

**Job Title** Senior Software Engineer **Role Summary** Lead the design, development, and maintenance of high‑performance, scalable backend services for a global entertainment platform. Collaborate with a distributed engineering team, drive architectural strategy, and mentor junior engineers while ensuring reliable production operations through on‑call duties and incident analysis. **Expectations** - Deliver production‑ready backend solutions for 5+ years; demonstrate impact on enterprise deployments. - Exhibit strong leadership in architecture, code quality, and process improvement within a hybrid (4 days in‑office) environment. - Maintain effective communication across cross‑functional teams and participate in knowledge‑sharing initiatives. **Key Responsibilities** - Design and implement scalable, reliable systems for enterprise deployment. - Lead architecture discussions and planning for core platform services. - Contribute to and review code via pull requests; provide constructive feedback. - Participate in on‑call rotation, ensuring smooth production operations. - Author technical proposals, perform root‑cause analysis, and recommend improvements. - Mentor junior and mid‑level engineers; establish engineering best practices and standards. - Share expertise through presentations, documentation, and tech talks. **Required Skills** - 5+ years delivering backend applications in production environments. - Expertise in Java, relational (SQL) and non‑relational (NoSQL) databases, and stream processing. - Proven experience building RESTful APIs and services. - Deep understanding of asynchronous programming models and concurrency concepts. - Proficiency with Git, CI/CD pipelines, and deployment tools (Jenkins, Docker). - Hands‑on experience with AWS cloud services. - Strong written and verbal communication skills. - Self‑driven, resourceful, and analytical problem‑solving mindset. **Required Education & Certifications** - Bachelor’s degree in Computer Science, Software Engineering, or related field (or equivalent experience). - AWS certifications (e.g., Solutions Architect, Developer) preferred but not mandatory.

Seattle, United states

On site

Senior

02-10-2025

Company Name

Yoh, A Day & Zimmermann Company

Job Title

Senior Java AWS Engineer- MULTITHREADING, CONCURRENCY must- onsite in Needham - no corps

Job Description

**Job Title:** Senior Java AWS Engineer **Role Summary:** Lead the design, development, and maintenance of high-performance Java applications deployed on AWS. Drive full‑cycle engineering, from requirements gathering and code implementation to CI/CD, performance tuning, and production support. Leverage multithreading, concurrency, and modern dev‑ops practices to deliver resilient, scalable services for a financial services domain, while integrating Python components and AI tooling (GitHub Copilot). **Expectations:** - 7+ years of core Java development with deep expertise in multithreading and concurrency. - Proven experience using AWS services (S3, EC2, DynamoDB, ECS, Elasticsearch, CloudFormation). - Strong SQL/MySQL proficiency and experience with relational databases. - Familiarity with Python, Git, Jenkins, Agile SDLC, JIRA, and test‑driven development. - Interest and experience in AI tools within the SDLC. - Financial services background is advantageous. - Must be a local candidate, onsite in Needham or Boston, 4 days per week, no relocation or corporate candidates. **Key Responsibilities:** - Develop and refactor core Java services using Spring frameworks, ensuring code quality and performance. - Implement and optimize multithreaded, concurrent processing logic. - Write unit tests, participate in CI/CD pipelines, and manage release cycles. - Collaborate with Business Analysts, QA, support, and DevOps to deliver new features and resolve bugs. - Configure and maintain monitoring for applications, services, infrastructure, and data quality. - Troubleshoot production issues and provide timely support. - Contribute to architecture discussions, focusing on resiliency, recoverability, and scalability. - Maintain infrastructure-as-code and cloud architecture best practices. - Integrate AI tooling into development workflows where applicable. **Required Skills:** - Core Java (7+), Concurrency APIs, Spring Boot/Spring Frameworks - Multithreading, thread safety, synchronization, lock management - Python (basic scripting/interoperability) - SQL, MySQL, relational DBA concepts - AWS services: S3, EC2, DynamoDB, ECS, Elasticsearch, CloudFormation - Git, Jenkins CI, GitHub Copilot (AI tooling) - Agile SDLC, JIRA, test methodologies - System administration: Linux, Windows, networking, load balancing - Financial services domain knowledge (preferred) **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Engineering, Technology, or related field. - AWS certifications (e.g., Solutions Architect, DevOps Engineer) are a plus.

Needham, United states

On site

Senior

03-11-2025