MTS Software Engineer 3

Apex Systems; Irvine (CA); Hybrid; USD 120,000 - 190,000; Full time

Benefits offered by this job

Medical insurance

Dental and vision

401K with company match

ESPP (employee stock purchase)

HSA

Training and certifications

Job summary

Everforth Apex Systems in Irvine, CA (Hybrid) seeks a MTS Software Engineer to transition an XML-based Key Server to an object-based model with secure, versioned APIs and data objects such as certificates, keys, tokens, and secrets. You will design object models, REST/gRPC services, and integrate encryption and secret-management across distributed systems.

The role emphasizes security, compatibility, and operational resilience in environments with intermittent connectivity, collaborating closely

Qualifications

• Bachelor's degree or equivalent in Computer Science, Information Systems, Engineering, or a related field.
• Five to ten years of software development experience, including GoLang programming in Linux environments and hands-on experience within cloud infrastructures.
• Strong proficiency in object-oriented design, data structures, and secure software development practices.
• Experience designing REST APIs, gRPC services, and networked client-server applications.

Responsibilities

• Design, modify, and implement software applications from functional and system design specifications.
• Code, integrate, test, debug, and refine software to produce secure, high-performing products.
• Develop object-based data models for certificates, cryptographic keys, tokens, secrets, metadata, versioning, and lifecycle states.
• Build secure, versioned REST and gRPC APIs for object creation, retrieval, updates, and synchronization.
• Integrate established encryption, key-wrapping, and secret-management mechanisms.
• Prepare and review architecture, interface, design, and requirement documentation.
• Implement centralized logging, monitoring, audit trails, and end-to-end traceability for access events.
• Support the development and maintenance of software applications related to cybersecurity initiatives.

Skills

GoLang

Linux

Cloud infrastructures

REST APIs

gRPC

Security best practices

Education

Bachelor's degree or equivalent in CS/IS/Engineering

Tools

JSON

XML

TLS

Job description

Job#: 3057474

MTS Software Engineer 3

Location: Irvine, CA (Hybrid)

Role Overview

An established organization is seeking a software engineer to contribute to the transition of an existing XML-based Key Server to an object-based architecture supporting certificates, cryptographic keys, tokens, and other protected secrets. The selected candidate will collaborate closely with the cybersecurity team to develop secure, versioned APIs, object models, and robust system integrations. This role involves designing reliable software for distributed environments with intermittent connectivity while maintaining security, compatibility, and operational resilience.

Key Responsibilities

• Design, modify, and implement software applications from functional and system design specifications.
• Code, integrate, test, debug, and refine software to produce secure, high-performing products.
• Develop object-based data models for certificates, cryptographic keys, tokens, secrets, metadata, versioning, and lifecycle states.
• Build secure, versioned REST and gRPC APIs for object creation, retrieval, updates, and synchronization.
• Integrate established encryption, key-wrapping, and secret-management mechanisms.
• Prepare and review architecture, interface, design, and requirement documentation.
• Implement centralized logging, monitoring, audit trails, and end-to-end traceability for access events.
• Support the development and maintenance of software applications related to cybersecurity initiatives.

Required Qualifications

Education: Bachelor's degree or equivalent in Computer Science, Information Systems, Engineering, or a related field.

Experience: Five to ten years of software development experience, including GoLang programming in Linux environments and hands-on experience within cloud infrastructures.

Technical Skills: Strong proficiency in object-oriented design, data structures, and secure software development practices. Demonstrated experience designing REST APIs, gRPC services, and networked client-server applications. Experience with structured data formats such as JSON and XML, as well as authentication, authorization, and role-based access control systems.

Preferred Qualifications

• Experience with cryptographic key management, certificate management, PKI, or secret-management systems.
• Working knowledge of AES, RSA, TLS/mTLS, key wrapping, initialization vectors, and related cryptographic concepts.
• Experience designing software for API and object versioning, schema evolution, and backward compatibility.

Everforth Apex Benefits Overview

• Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection.
• We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure.
• Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts.
• In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA.
• Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach.
• You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Everforth Apex team member can provide.

Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.

If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.

UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.

Everforth Apex is a world‑class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico.